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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 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_add_probeaddr_isa appends a single ISA I/O Address to the list
566 of I/O Address and Bus Probe Information to be checked for potential BusLogic
567 Host Adapters.
568*/
569
570static void __init blogic_add_probeaddr_isa(unsigned long io_addr)
571{
572 struct blogic_probeinfo *probeinfo;
573 if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
574 return;
575 probeinfo = &blogic_probeinfo_list[blogic_probeinfo_count++];
576 probeinfo->adapter_type = BLOGIC_MULTIMASTER;
577 probeinfo->adapter_bus_type = BLOGIC_ISA_BUS;
578 probeinfo->io_addr = io_addr;
579 probeinfo->pci_device = NULL;
580}
581
582
583/*
584 blogic_init_probeinfo_isa initializes the list of I/O Address and
585 Bus Probe Information to be checked for potential BusLogic SCSI Host Adapters
586 only from the list of standard BusLogic MultiMaster ISA I/O Addresses.
587*/
588
589static void __init blogic_init_probeinfo_isa(struct blogic_adapter *adapter)
590{
591 /*
592 If BusLogic Driver Options specifications requested that ISA
593 Bus Probes be inhibited, do not proceed further.
594 */
595 if (blogic_probe_options.noprobe_isa)
596 return;
597 /*
598 Append the list of standard BusLogic MultiMaster ISA I/O Addresses.
599 */
600 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe330)
601 blogic_add_probeaddr_isa(0x330);
602 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe334)
603 blogic_add_probeaddr_isa(0x334);
604 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe230)
605 blogic_add_probeaddr_isa(0x230);
606 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe234)
607 blogic_add_probeaddr_isa(0x234);
608 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe130)
609 blogic_add_probeaddr_isa(0x130);
610 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe134)
611 blogic_add_probeaddr_isa(0x134);
612}
613
614
615#ifdef CONFIG_PCI
616
617
618/*
619 blogic_sort_probeinfo sorts a section of blogic_probeinfo_list in order
620 of increasing PCI Bus and Device Number.
621*/
622
623static void __init blogic_sort_probeinfo(struct blogic_probeinfo
624 *probeinfo_list, int probeinfo_cnt)
625{
626 int last_exchange = probeinfo_cnt - 1, bound, j;
627
628 while (last_exchange > 0) {
629 bound = last_exchange;
630 last_exchange = 0;
631 for (j = 0; j < bound; j++) {
632 struct blogic_probeinfo *probeinfo1 =
633 &probeinfo_list[j];
634 struct blogic_probeinfo *probeinfo2 =
635 &probeinfo_list[j + 1];
636 if (probeinfo1->bus > probeinfo2->bus ||
637 (probeinfo1->bus == probeinfo2->bus &&
638 (probeinfo1->dev > probeinfo2->dev))) {
639 struct blogic_probeinfo tmp_probeinfo;
640
641 memcpy(&tmp_probeinfo, probeinfo1,
642 sizeof(struct blogic_probeinfo));
643 memcpy(probeinfo1, probeinfo2,
644 sizeof(struct blogic_probeinfo));
645 memcpy(probeinfo2, &tmp_probeinfo,
646 sizeof(struct blogic_probeinfo));
647 last_exchange = j;
648 }
649 }
650 }
651}
652
653
654/*
655 blogic_init_mm_probeinfo initializes the list of I/O Address
656 and Bus Probe Information to be checked for potential BusLogic MultiMaster
657 SCSI Host Adapters by interrogating the PCI Configuration Space on PCI
658 machines as well as from the list of standard BusLogic MultiMaster ISA
659 I/O Addresses. It returns the number of PCI MultiMaster Host Adapters found.
660*/
661
662static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter)
663{
664 struct blogic_probeinfo *pr_probeinfo =
665 &blogic_probeinfo_list[blogic_probeinfo_count];
666 int nonpr_mmindex = blogic_probeinfo_count + 1;
667 int nonpr_mmcount = 0, mmcount = 0;
668 bool force_scan_order = false;
669 bool force_scan_order_checked = false;
670 bool addr_seen[6];
671 struct pci_dev *pci_device = NULL;
672 int i;
673 if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
674 return 0;
675 blogic_probeinfo_count++;
676 for (i = 0; i < 6; i++)
677 addr_seen[i] = false;
678 /*
679 Iterate over the MultiMaster PCI Host Adapters. For each
680 enumerated host adapter, determine whether its ISA Compatible
681 I/O Port is enabled and if so, whether it is assigned the
682 Primary I/O Address. A host adapter that is assigned the
683 Primary I/O Address will always be the preferred boot device.
684 The MultiMaster BIOS will first recognize a host adapter at
685 the Primary I/O Address, then any other PCI host adapters,
686 and finally any host adapters located at the remaining
687 standard ISA I/O Addresses. When a PCI host adapter is found
688 with its ISA Compatible I/O Port enabled, a command is issued
689 to disable the ISA Compatible I/O Port, and it is noted that the
690 particular standard ISA I/O Address need not be probed.
691 */
692 pr_probeinfo->io_addr = 0;
693 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
694 PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
695 pci_device)) != NULL) {
696 struct blogic_adapter *host_adapter = adapter;
697 struct blogic_adapter_info adapter_info;
698 enum blogic_isa_ioport mod_ioaddr_req;
699 unsigned char bus;
700 unsigned char device;
701 unsigned int irq_ch;
702 unsigned long base_addr0;
703 unsigned long base_addr1;
704 unsigned long io_addr;
705 unsigned long pci_addr;
706
707 if (pci_enable_device(pci_device))
708 continue;
709
710 if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
711 continue;
712
713 bus = pci_device->bus->number;
714 device = pci_device->devfn >> 3;
715 irq_ch = pci_device->irq;
716 io_addr = base_addr0 = pci_resource_start(pci_device, 0);
717 pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
718
719 if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
720 blogic_err("BusLogic: Base Address0 0x%lX not I/O for MultiMaster Host Adapter\n", NULL, base_addr0);
721 blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
722 continue;
723 }
724 if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
725 blogic_err("BusLogic: Base Address1 0x%lX not Memory for MultiMaster Host Adapter\n", NULL, base_addr1);
726 blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr);
727 continue;
728 }
729 if (irq_ch == 0) {
730 blogic_err("BusLogic: IRQ Channel %d invalid for MultiMaster Host Adapter\n", NULL, irq_ch);
731 blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
732 continue;
733 }
734 if (blogic_global_options.trace_probe) {
735 blogic_notice("BusLogic: PCI MultiMaster Host Adapter detected at\n", NULL);
736 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);
737 }
738 /*
739 Issue the Inquire PCI Host Adapter Information command to determine
740 the ISA Compatible I/O Port. If the ISA Compatible I/O Port is
741 known and enabled, note that the particular Standard ISA I/O
742 Address should not be probed.
743 */
744 host_adapter->io_addr = io_addr;
745 blogic_intreset(host_adapter);
746 if (blogic_cmd(host_adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
747 &adapter_info, sizeof(adapter_info)) ==
748 sizeof(adapter_info)) {
749 if (adapter_info.isa_port < 6)
750 addr_seen[adapter_info.isa_port] = true;
751 } else
752 adapter_info.isa_port = BLOGIC_IO_DISABLE;
753 /*
754 Issue the Modify I/O Address command to disable the
755 ISA Compatible I/O Port. On PCI Host Adapters, the
756 Modify I/O Address command allows modification of the
757 ISA compatible I/O Address that the Host Adapter
758 responds to; it does not affect the PCI compliant
759 I/O Address assigned at system initialization.
760 */
761 mod_ioaddr_req = BLOGIC_IO_DISABLE;
762 blogic_cmd(host_adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req,
763 sizeof(mod_ioaddr_req), NULL, 0);
764 /*
765 For the first MultiMaster Host Adapter enumerated,
766 issue the Fetch Host Adapter Local RAM command to read
767 byte 45 of the AutoSCSI area, for the setting of the
768 "Use Bus And Device # For PCI Scanning Seq." option.
769 Issue the Inquire Board ID command since this option is
770 only valid for the BT-948/958/958D.
771 */
772 if (!force_scan_order_checked) {
773 struct blogic_fetch_localram fetch_localram;
774 struct blogic_autoscsi_byte45 autoscsi_byte45;
775 struct blogic_board_id id;
776
777 fetch_localram.offset = BLOGIC_AUTOSCSI_BASE + 45;
778 fetch_localram.count = sizeof(autoscsi_byte45);
779 blogic_cmd(host_adapter, BLOGIC_FETCH_LOCALRAM,
780 &fetch_localram, sizeof(fetch_localram),
781 &autoscsi_byte45,
782 sizeof(autoscsi_byte45));
783 blogic_cmd(host_adapter, BLOGIC_GET_BOARD_ID, NULL, 0,
784 &id, sizeof(id));
785 if (id.fw_ver_digit1 == '5')
786 force_scan_order =
787 autoscsi_byte45.force_scan_order;
788 force_scan_order_checked = true;
789 }
790 /*
791 Determine whether this MultiMaster Host Adapter has its
792 ISA Compatible I/O Port enabled and is assigned the
793 Primary I/O Address. If it does, then it is the Primary
794 MultiMaster Host Adapter and must be recognized first.
795 If it does not, then it is added to the list for probing
796 after any Primary MultiMaster Host Adapter is probed.
797 */
798 if (adapter_info.isa_port == BLOGIC_IO_330) {
799 pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
800 pr_probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
801 pr_probeinfo->io_addr = io_addr;
802 pr_probeinfo->pci_addr = pci_addr;
803 pr_probeinfo->bus = bus;
804 pr_probeinfo->dev = device;
805 pr_probeinfo->irq_ch = irq_ch;
806 pr_probeinfo->pci_device = pci_dev_get(pci_device);
807 mmcount++;
808 } else if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
809 struct blogic_probeinfo *probeinfo =
810 &blogic_probeinfo_list[blogic_probeinfo_count++];
811 probeinfo->adapter_type = BLOGIC_MULTIMASTER;
812 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
813 probeinfo->io_addr = io_addr;
814 probeinfo->pci_addr = pci_addr;
815 probeinfo->bus = bus;
816 probeinfo->dev = device;
817 probeinfo->irq_ch = irq_ch;
818 probeinfo->pci_device = pci_dev_get(pci_device);
819 nonpr_mmcount++;
820 mmcount++;
821 } else
822 blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL);
823 }
824 /*
825 If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq."
826 option is ON for the first enumerated MultiMaster Host Adapter,
827 and if that host adapter is a BT-948/958/958D, then the
828 MultiMaster BIOS will recognize MultiMaster Host Adapters in
829 the order of increasing PCI Bus and Device Number. In that case,
830 sort the probe information into the same order the BIOS uses.
831 If this option is OFF, then the MultiMaster BIOS will recognize
832 MultiMaster Host Adapters in the order they are enumerated by
833 the PCI BIOS, and hence no sorting is necessary.
834 */
835 if (force_scan_order)
836 blogic_sort_probeinfo(&blogic_probeinfo_list[nonpr_mmindex],
837 nonpr_mmcount);
838 /*
839 If no PCI MultiMaster Host Adapter is assigned the Primary
840 I/O Address, then the Primary I/O Address must be probed
841 explicitly before any PCI host adapters are probed.
842 */
843 if (!blogic_probe_options.noprobe_isa)
844 if (pr_probeinfo->io_addr == 0 &&
845 (!blogic_probe_options.limited_isa ||
846 blogic_probe_options.probe330)) {
847 pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
848 pr_probeinfo->adapter_bus_type = BLOGIC_ISA_BUS;
849 pr_probeinfo->io_addr = 0x330;
850 }
851 /*
852 Append the list of standard BusLogic MultiMaster ISA I/O Addresses,
853 omitting the Primary I/O Address which has already been handled.
854 */
855 if (!blogic_probe_options.noprobe_isa) {
856 if (!addr_seen[1] &&
857 (!blogic_probe_options.limited_isa ||
858 blogic_probe_options.probe334))
859 blogic_add_probeaddr_isa(0x334);
860 if (!addr_seen[2] &&
861 (!blogic_probe_options.limited_isa ||
862 blogic_probe_options.probe230))
863 blogic_add_probeaddr_isa(0x230);
864 if (!addr_seen[3] &&
865 (!blogic_probe_options.limited_isa ||
866 blogic_probe_options.probe234))
867 blogic_add_probeaddr_isa(0x234);
868 if (!addr_seen[4] &&
869 (!blogic_probe_options.limited_isa ||
870 blogic_probe_options.probe130))
871 blogic_add_probeaddr_isa(0x130);
872 if (!addr_seen[5] &&
873 (!blogic_probe_options.limited_isa ||
874 blogic_probe_options.probe134))
875 blogic_add_probeaddr_isa(0x134);
876 }
877 /*
878 Iterate over the older non-compliant MultiMaster PCI Host Adapters,
879 noting the PCI bus location and assigned IRQ Channel.
880 */
881 pci_device = NULL;
882 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
883 PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
884 pci_device)) != NULL) {
885 unsigned char bus;
886 unsigned char device;
887 unsigned int irq_ch;
888 unsigned long io_addr;
889
890 if (pci_enable_device(pci_device))
891 continue;
892
893 if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
894 continue;
895
896 bus = pci_device->bus->number;
897 device = pci_device->devfn >> 3;
898 irq_ch = pci_device->irq;
899 io_addr = pci_resource_start(pci_device, 0);
900
901 if (io_addr == 0 || irq_ch == 0)
902 continue;
903 for (i = 0; i < blogic_probeinfo_count; i++) {
904 struct blogic_probeinfo *probeinfo =
905 &blogic_probeinfo_list[i];
906 if (probeinfo->io_addr == io_addr &&
907 probeinfo->adapter_type == BLOGIC_MULTIMASTER) {
908 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
909 probeinfo->pci_addr = 0;
910 probeinfo->bus = bus;
911 probeinfo->dev = device;
912 probeinfo->irq_ch = irq_ch;
913 probeinfo->pci_device = pci_dev_get(pci_device);
914 break;
915 }
916 }
917 }
918 return mmcount;
919}
920
921
922/*
923 blogic_init_fp_probeinfo initializes the list of I/O Address
924 and Bus Probe Information to be checked for potential BusLogic FlashPoint
925 Host Adapters by interrogating the PCI Configuration Space. It returns the
926 number of FlashPoint Host Adapters found.
927*/
928
929static int __init blogic_init_fp_probeinfo(struct blogic_adapter *adapter)
930{
931 int fpindex = blogic_probeinfo_count, fpcount = 0;
932 struct pci_dev *pci_device = NULL;
933 /*
934 Interrogate PCI Configuration Space for any FlashPoint Host Adapters.
935 */
936 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
937 PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
938 pci_device)) != NULL) {
939 unsigned char bus;
940 unsigned char device;
941 unsigned int irq_ch;
942 unsigned long base_addr0;
943 unsigned long base_addr1;
944 unsigned long io_addr;
945 unsigned long pci_addr;
946
947 if (pci_enable_device(pci_device))
948 continue;
949
950 if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
951 continue;
952
953 bus = pci_device->bus->number;
954 device = pci_device->devfn >> 3;
955 irq_ch = pci_device->irq;
956 io_addr = base_addr0 = pci_resource_start(pci_device, 0);
957 pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
958#ifdef CONFIG_SCSI_FLASHPOINT
959 if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
960 blogic_err("BusLogic: Base Address0 0x%lX not I/O for FlashPoint Host Adapter\n", NULL, base_addr0);
961 blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
962 continue;
963 }
964 if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
965 blogic_err("BusLogic: Base Address1 0x%lX not Memory for FlashPoint Host Adapter\n", NULL, base_addr1);
966 blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr);
967 continue;
968 }
969 if (irq_ch == 0) {
970 blogic_err("BusLogic: IRQ Channel %d invalid for FlashPoint Host Adapter\n", NULL, irq_ch);
971 blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
972 continue;
973 }
974 if (blogic_global_options.trace_probe) {
975 blogic_notice("BusLogic: FlashPoint Host Adapter detected at\n", NULL);
976 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);
977 }
978 if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
979 struct blogic_probeinfo *probeinfo =
980 &blogic_probeinfo_list[blogic_probeinfo_count++];
981 probeinfo->adapter_type = BLOGIC_FLASHPOINT;
982 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
983 probeinfo->io_addr = io_addr;
984 probeinfo->pci_addr = pci_addr;
985 probeinfo->bus = bus;
986 probeinfo->dev = device;
987 probeinfo->irq_ch = irq_ch;
988 probeinfo->pci_device = pci_dev_get(pci_device);
989 fpcount++;
990 } else
991 blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL);
992#else
993 blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", NULL, bus, device);
994 blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, irq %d, but FlashPoint\n", NULL, io_addr, pci_addr, irq_ch);
995 blogic_err("BusLogic: support was omitted in this kernel configuration.\n", NULL);
996#endif
997 }
998 /*
999 The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of
1000 increasing PCI Bus and Device Number, so sort the probe information into
1001 the same order the BIOS uses.
1002 */
1003 blogic_sort_probeinfo(&blogic_probeinfo_list[fpindex], fpcount);
1004 return fpcount;
1005}
1006
1007
1008/*
1009 blogic_init_probeinfo_list initializes the list of I/O Address and Bus
1010 Probe Information to be checked for potential BusLogic SCSI Host Adapters by
1011 interrogating the PCI Configuration Space on PCI machines as well as from the
1012 list of standard BusLogic MultiMaster ISA I/O Addresses. By default, if both
1013 FlashPoint and PCI MultiMaster Host Adapters are present, this driver will
1014 probe for FlashPoint Host Adapters first unless the BIOS primary disk is
1015 controlled by the first PCI MultiMaster Host Adapter, in which case
1016 MultiMaster Host Adapters will be probed first. The BusLogic Driver Options
1017 specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force
1018 a particular probe order.
1019*/
1020
1021static void __init blogic_init_probeinfo_list(struct blogic_adapter *adapter)
1022{
1023 /*
1024 If a PCI BIOS is present, interrogate it for MultiMaster and
1025 FlashPoint Host Adapters; otherwise, default to the standard
1026 ISA MultiMaster probe.
1027 */
1028 if (!blogic_probe_options.noprobe_pci) {
1029 if (blogic_probe_options.multimaster_first) {
1030 blogic_init_mm_probeinfo(adapter);
1031 blogic_init_fp_probeinfo(adapter);
1032 } else if (blogic_probe_options.flashpoint_first) {
1033 blogic_init_fp_probeinfo(adapter);
1034 blogic_init_mm_probeinfo(adapter);
1035 } else {
1036 int fpcount = blogic_init_fp_probeinfo(adapter);
1037 int mmcount = blogic_init_mm_probeinfo(adapter);
1038 if (fpcount > 0 && mmcount > 0) {
1039 struct blogic_probeinfo *probeinfo =
1040 &blogic_probeinfo_list[fpcount];
1041 struct blogic_adapter *myadapter = adapter;
1042 struct blogic_fetch_localram fetch_localram;
1043 struct blogic_bios_drvmap d0_mapbyte;
1044
1045 while (probeinfo->adapter_bus_type !=
1046 BLOGIC_PCI_BUS)
1047 probeinfo++;
1048 myadapter->io_addr = probeinfo->io_addr;
1049 fetch_localram.offset =
1050 BLOGIC_BIOS_BASE + BLOGIC_BIOS_DRVMAP;
1051 fetch_localram.count = sizeof(d0_mapbyte);
1052 blogic_cmd(myadapter, BLOGIC_FETCH_LOCALRAM,
1053 &fetch_localram,
1054 sizeof(fetch_localram),
1055 &d0_mapbyte,
1056 sizeof(d0_mapbyte));
1057 /*
1058 If the Map Byte for BIOS Drive 0 indicates
1059 that BIOS Drive 0 is controlled by this
1060 PCI MultiMaster Host Adapter, then reverse
1061 the probe order so that MultiMaster Host
1062 Adapters are probed before FlashPoint Host
1063 Adapters.
1064 */
1065 if (d0_mapbyte.diskgeom != BLOGIC_BIOS_NODISK) {
1066 struct blogic_probeinfo saved_probeinfo[BLOGIC_MAX_ADAPTERS];
1067 int mmcount = blogic_probeinfo_count - fpcount;
1068
1069 memcpy(saved_probeinfo,
1070 blogic_probeinfo_list,
1071 blogic_probeinfo_count * sizeof(struct blogic_probeinfo));
1072 memcpy(&blogic_probeinfo_list[0],
1073 &saved_probeinfo[fpcount],
1074 mmcount * sizeof(struct blogic_probeinfo));
1075 memcpy(&blogic_probeinfo_list[mmcount],
1076 &saved_probeinfo[0],
1077 fpcount * sizeof(struct blogic_probeinfo));
1078 }
1079 }
1080 }
1081 } else {
1082 blogic_init_probeinfo_isa(adapter);
1083 }
1084}
1085
1086
1087#else
1088#define blogic_init_probeinfo_list(adapter) \
1089 blogic_init_probeinfo_isa(adapter)
1090#endif /* CONFIG_PCI */
1091
1092
1093/*
1094 blogic_failure prints a standardized error message, and then returns false.
1095*/
1096
1097static bool blogic_failure(struct blogic_adapter *adapter, char *msg)
1098{
1099 blogic_announce_drvr(adapter);
1100 if (adapter->adapter_bus_type == BLOGIC_PCI_BUS) {
1101 blogic_err("While configuring BusLogic PCI Host Adapter at\n",
1102 adapter);
1103 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);
1104 } else
1105 blogic_err("While configuring BusLogic Host Adapter at I/O Address 0x%lX:\n", adapter, adapter->io_addr);
1106 blogic_err("%s FAILED - DETACHING\n", adapter, msg);
1107 if (blogic_cmd_failure_reason != NULL)
1108 blogic_err("ADDITIONAL FAILURE INFO - %s\n", adapter,
1109 blogic_cmd_failure_reason);
1110 return false;
1111}
1112
1113
1114/*
1115 blogic_probe probes for a BusLogic Host Adapter.
1116*/
1117
1118static bool __init blogic_probe(struct blogic_adapter *adapter)
1119{
1120 union blogic_stat_reg statusreg;
1121 union blogic_int_reg intreg;
1122 union blogic_geo_reg georeg;
1123 /*
1124 FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager.
1125 */
1126 if (blogic_flashpoint_type(adapter)) {
1127 struct fpoint_info *fpinfo = &adapter->fpinfo;
1128 fpinfo->base_addr = (u32) adapter->io_addr;
1129 fpinfo->irq_ch = adapter->irq_ch;
1130 fpinfo->present = false;
1131 if (!(FlashPoint_ProbeHostAdapter(fpinfo) == 0 &&
1132 fpinfo->present)) {
1133 blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", adapter, adapter->bus, adapter->dev);
1134 blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, but FlashPoint\n", adapter, adapter->io_addr, adapter->pci_addr);
1135 blogic_err("BusLogic: Probe Function failed to validate it.\n", adapter);
1136 return false;
1137 }
1138 if (blogic_global_options.trace_probe)
1139 blogic_notice("BusLogic_Probe(0x%lX): FlashPoint Found\n", adapter, adapter->io_addr);
1140 /*
1141 Indicate the Host Adapter Probe completed successfully.
1142 */
1143 return true;
1144 }
1145 /*
1146 Read the Status, Interrupt, and Geometry Registers to test if there are I/O
1147 ports that respond, and to check the values to determine if they are from a
1148 BusLogic Host Adapter. A nonexistent I/O port will return 0xFF, in which
1149 case there is definitely no BusLogic Host Adapter at this base I/O Address.
1150 The test here is a subset of that used by the BusLogic Host Adapter BIOS.
1151 */
1152 statusreg.all = blogic_rdstatus(adapter);
1153 intreg.all = blogic_rdint(adapter);
1154 georeg.all = blogic_rdgeom(adapter);
1155 if (blogic_global_options.trace_probe)
1156 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);
1157 if (statusreg.all == 0 || statusreg.sr.diag_active ||
1158 statusreg.sr.cmd_param_busy || statusreg.sr.rsvd ||
1159 statusreg.sr.cmd_invalid || intreg.ir.rsvd != 0)
1160 return false;
1161 /*
1162 Check the undocumented Geometry Register to test if there is
1163 an I/O port that responded. Adaptec Host Adapters do not
1164 implement the Geometry Register, so this test helps serve to
1165 avoid incorrectly recognizing an Adaptec 1542A or 1542B as a
1166 BusLogic. Unfortunately, the Adaptec 1542C series does respond
1167 to the Geometry Register I/O port, but it will be rejected
1168 later when the Inquire Extended Setup Information command is
1169 issued in blogic_checkadapter. The AMI FastDisk Host Adapter
1170 is a BusLogic clone that implements the same interface as
1171 earlier BusLogic Host Adapters, including the undocumented
1172 commands, and is therefore supported by this driver. However,
1173 the AMI FastDisk always returns 0x00 upon reading the Geometry
1174 Register, so the extended translation option should always be
1175 left disabled on the AMI FastDisk.
1176 */
1177 if (georeg.all == 0xFF)
1178 return false;
1179 /*
1180 Indicate the Host Adapter Probe completed successfully.
1181 */
1182 return true;
1183}
1184
1185
1186/*
1187 blogic_hwreset issues a Hardware Reset to the Host Adapter
1188 and waits for Host Adapter Diagnostics to complete. If hard_reset is true, a
1189 Hard Reset is performed which also initiates a SCSI Bus Reset. Otherwise, a
1190 Soft Reset is performed which only resets the Host Adapter without forcing a
1191 SCSI Bus Reset.
1192*/
1193
1194static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset)
1195{
1196 union blogic_stat_reg statusreg;
1197 int timeout;
1198 /*
1199 FlashPoint Host Adapters are Hard Reset by the FlashPoint
1200 SCCB Manager.
1201 */
1202 if (blogic_flashpoint_type(adapter)) {
1203 struct fpoint_info *fpinfo = &adapter->fpinfo;
1204 fpinfo->softreset = !hard_reset;
1205 fpinfo->report_underrun = true;
1206 adapter->cardhandle =
1207 FlashPoint_HardwareResetHostAdapter(fpinfo);
1208 if (adapter->cardhandle == (void *)FPOINT_BADCARD_HANDLE)
1209 return false;
1210 /*
1211 Indicate the Host Adapter Hard Reset completed successfully.
1212 */
1213 return true;
1214 }
1215 /*
1216 Issue a Hard Reset or Soft Reset Command to the Host Adapter.
1217 The Host Adapter should respond by setting Diagnostic Active in
1218 the Status Register.
1219 */
1220 if (hard_reset)
1221 blogic_hardreset(adapter);
1222 else
1223 blogic_softreset(adapter);
1224 /*
1225 Wait until Diagnostic Active is set in the Status Register.
1226 */
1227 timeout = 5 * 10000;
1228 while (--timeout >= 0) {
1229 statusreg.all = blogic_rdstatus(adapter);
1230 if (statusreg.sr.diag_active)
1231 break;
1232 udelay(100);
1233 }
1234 if (blogic_global_options.trace_hw_reset)
1235 blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Active, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1236 if (timeout < 0)
1237 return false;
1238 /*
1239 Wait 100 microseconds to allow completion of any initial diagnostic
1240 activity which might leave the contents of the Status Register
1241 unpredictable.
1242 */
1243 udelay(100);
1244 /*
1245 Wait until Diagnostic Active is reset in the Status Register.
1246 */
1247 timeout = 10 * 10000;
1248 while (--timeout >= 0) {
1249 statusreg.all = blogic_rdstatus(adapter);
1250 if (!statusreg.sr.diag_active)
1251 break;
1252 udelay(100);
1253 }
1254 if (blogic_global_options.trace_hw_reset)
1255 blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Completed, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1256 if (timeout < 0)
1257 return false;
1258 /*
1259 Wait until at least one of the Diagnostic Failure, Host Adapter
1260 Ready, or Data In Register Ready bits is set in the Status Register.
1261 */
1262 timeout = 10000;
1263 while (--timeout >= 0) {
1264 statusreg.all = blogic_rdstatus(adapter);
1265 if (statusreg.sr.diag_failed || statusreg.sr.adapter_ready ||
1266 statusreg.sr.datain_ready)
1267 break;
1268 udelay(100);
1269 }
1270 if (blogic_global_options.trace_hw_reset)
1271 blogic_notice("BusLogic_HardwareReset(0x%lX): Host Adapter Ready, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1272 if (timeout < 0)
1273 return false;
1274 /*
1275 If Diagnostic Failure is set or Host Adapter Ready is reset,
1276 then an error occurred during the Host Adapter diagnostics.
1277 If Data In Register Ready is set, then there is an Error Code
1278 available.
1279 */
1280 if (statusreg.sr.diag_failed || !statusreg.sr.adapter_ready) {
1281 blogic_cmd_failure_reason = NULL;
1282 blogic_failure(adapter, "HARD RESET DIAGNOSTICS");
1283 blogic_err("HOST ADAPTER STATUS REGISTER = %02X\n", adapter,
1284 statusreg.all);
1285 if (statusreg.sr.datain_ready)
1286 blogic_err("HOST ADAPTER ERROR CODE = %d\n", adapter,
1287 blogic_rddatain(adapter));
1288 return false;
1289 }
1290 /*
1291 Indicate the Host Adapter Hard Reset completed successfully.
1292 */
1293 return true;
1294}
1295
1296
1297/*
1298 blogic_checkadapter checks to be sure this really is a BusLogic
1299 Host Adapter.
1300*/
1301
1302static bool __init blogic_checkadapter(struct blogic_adapter *adapter)
1303{
1304 struct blogic_ext_setup ext_setupinfo;
1305 unsigned char req_replylen;
1306 bool result = true;
1307 /*
1308 FlashPoint Host Adapters do not require this protection.
1309 */
1310 if (blogic_flashpoint_type(adapter))
1311 return true;
1312 /*
1313 Issue the Inquire Extended Setup Information command. Only genuine
1314 BusLogic Host Adapters and true clones support this command.
1315 Adaptec 1542C series Host Adapters that respond to the Geometry
1316 Register I/O port will fail this 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 result = false;
1323 /*
1324 Provide tracing information if requested and return.
1325 */
1326 if (blogic_global_options.trace_probe)
1327 blogic_notice("BusLogic_Check(0x%lX): MultiMaster %s\n", adapter,
1328 adapter->io_addr,
1329 (result ? "Found" : "Not Found"));
1330 return result;
1331}
1332
1333
1334/*
1335 blogic_rdconfig reads the Configuration Information
1336 from Host Adapter and initializes the Host Adapter structure.
1337*/
1338
1339static bool __init blogic_rdconfig(struct blogic_adapter *adapter)
1340{
1341 struct blogic_board_id id;
1342 struct blogic_config config;
1343 struct blogic_setup_info setupinfo;
1344 struct blogic_ext_setup ext_setupinfo;
1345 unsigned char model[5];
1346 unsigned char fw_ver_digit3;
1347 unsigned char fw_ver_letter;
1348 struct blogic_adapter_info adapter_info;
1349 struct blogic_fetch_localram fetch_localram;
1350 struct blogic_autoscsi autoscsi;
1351 union blogic_geo_reg georeg;
1352 unsigned char req_replylen;
1353 unsigned char *tgt, ch;
1354 int tgt_id, i;
1355 /*
1356 Configuration Information for FlashPoint Host Adapters is
1357 provided in the fpoint_info structure by the FlashPoint
1358 SCCB Manager's Probe Function. Initialize fields in the
1359 Host Adapter structure from the fpoint_info structure.
1360 */
1361 if (blogic_flashpoint_type(adapter)) {
1362 struct fpoint_info *fpinfo = &adapter->fpinfo;
1363 tgt = adapter->model;
1364 *tgt++ = 'B';
1365 *tgt++ = 'T';
1366 *tgt++ = '-';
1367 for (i = 0; i < sizeof(fpinfo->model); i++)
1368 *tgt++ = fpinfo->model[i];
1369 *tgt++ = '\0';
1370 strcpy(adapter->fw_ver, FLASHPOINT_FW_VER);
1371 adapter->scsi_id = fpinfo->scsi_id;
1372 adapter->ext_trans_enable = fpinfo->ext_trans_enable;
1373 adapter->parity = fpinfo->parity;
1374 adapter->reset_enabled = !fpinfo->softreset;
1375 adapter->level_int = true;
1376 adapter->wide = fpinfo->wide;
1377 adapter->differential = false;
1378 adapter->scam = true;
1379 adapter->ultra = true;
1380 adapter->ext_lun = true;
1381 adapter->terminfo_valid = true;
1382 adapter->low_term = fpinfo->low_term;
1383 adapter->high_term = fpinfo->high_term;
1384 adapter->scam_enabled = fpinfo->scam_enabled;
1385 adapter->scam_lev2 = fpinfo->scam_lev2;
1386 adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
1387 adapter->maxdev = (adapter->wide ? 16 : 8);
1388 adapter->maxlun = 32;
1389 adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
1390 adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
1391 adapter->drvr_qdepth = 255;
1392 adapter->adapter_qdepth = adapter->drvr_qdepth;
1393 adapter->sync_ok = fpinfo->sync_ok;
1394 adapter->fast_ok = fpinfo->fast_ok;
1395 adapter->ultra_ok = fpinfo->ultra_ok;
1396 adapter->wide_ok = fpinfo->wide_ok;
1397 adapter->discon_ok = fpinfo->discon_ok;
1398 adapter->tagq_ok = 0xFFFF;
1399 goto common;
1400 }
1401 /*
1402 Issue the Inquire Board ID command.
1403 */
1404 if (blogic_cmd(adapter, BLOGIC_GET_BOARD_ID, NULL, 0, &id,
1405 sizeof(id)) != sizeof(id))
1406 return blogic_failure(adapter, "INQUIRE BOARD ID");
1407 /*
1408 Issue the Inquire Configuration command.
1409 */
1410 if (blogic_cmd(adapter, BLOGIC_INQ_CONFIG, NULL, 0, &config,
1411 sizeof(config))
1412 != sizeof(config))
1413 return blogic_failure(adapter, "INQUIRE CONFIGURATION");
1414 /*
1415 Issue the Inquire Setup Information command.
1416 */
1417 req_replylen = sizeof(setupinfo);
1418 if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
1419 sizeof(req_replylen), &setupinfo,
1420 sizeof(setupinfo)) != sizeof(setupinfo))
1421 return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
1422 /*
1423 Issue the Inquire Extended Setup Information command.
1424 */
1425 req_replylen = sizeof(ext_setupinfo);
1426 if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
1427 sizeof(req_replylen), &ext_setupinfo,
1428 sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
1429 return blogic_failure(adapter,
1430 "INQUIRE EXTENDED SETUP INFORMATION");
1431 /*
1432 Issue the Inquire Firmware Version 3rd Digit command.
1433 */
1434 fw_ver_digit3 = '\0';
1435 if (id.fw_ver_digit1 > '0')
1436 if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_D3, NULL, 0,
1437 &fw_ver_digit3,
1438 sizeof(fw_ver_digit3)) != sizeof(fw_ver_digit3))
1439 return blogic_failure(adapter,
1440 "INQUIRE FIRMWARE 3RD DIGIT");
1441 /*
1442 Issue the Inquire Host Adapter Model Number command.
1443 */
1444 if (ext_setupinfo.bus_type == 'A' && id.fw_ver_digit1 == '2')
1445 /* BusLogic BT-542B ISA 2.xx */
1446 strcpy(model, "542B");
1447 else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '2' &&
1448 (id.fw_ver_digit2 <= '1' || (id.fw_ver_digit2 == '2' &&
1449 fw_ver_digit3 == '0')))
1450 /* BusLogic BT-742A EISA 2.1x or 2.20 */
1451 strcpy(model, "742A");
1452 else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '0')
1453 /* AMI FastDisk EISA Series 441 0.x */
1454 strcpy(model, "747A");
1455 else {
1456 req_replylen = sizeof(model);
1457 if (blogic_cmd(adapter, BLOGIC_INQ_MODELNO, &req_replylen,
1458 sizeof(req_replylen), &model,
1459 sizeof(model)) != sizeof(model))
1460 return blogic_failure(adapter,
1461 "INQUIRE HOST ADAPTER MODEL NUMBER");
1462 }
1463 /*
1464 BusLogic MultiMaster Host Adapters can be identified by their
1465 model number and the major version number of their firmware
1466 as follows:
1467
1468 5.xx BusLogic "W" Series Host Adapters:
1469 BT-948/958/958D
1470 4.xx BusLogic "C" Series Host Adapters:
1471 BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
1472 3.xx BusLogic "S" Series Host Adapters:
1473 BT-747S/747D/757S/757D/445S/545S/542D
1474 BT-542B/742A (revision H)
1475 2.xx BusLogic "A" Series Host Adapters:
1476 BT-542B/742A (revision G and below)
1477 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter
1478 */
1479 /*
1480 Save the Model Name and Host Adapter Name in the Host Adapter
1481 structure.
1482 */
1483 tgt = adapter->model;
1484 *tgt++ = 'B';
1485 *tgt++ = 'T';
1486 *tgt++ = '-';
1487 for (i = 0; i < sizeof(model); i++) {
1488 ch = model[i];
1489 if (ch == ' ' || ch == '\0')
1490 break;
1491 *tgt++ = ch;
1492 }
1493 *tgt++ = '\0';
1494 /*
1495 Save the Firmware Version in the Host Adapter structure.
1496 */
1497 tgt = adapter->fw_ver;
1498 *tgt++ = id.fw_ver_digit1;
1499 *tgt++ = '.';
1500 *tgt++ = id.fw_ver_digit2;
1501 if (fw_ver_digit3 != ' ' && fw_ver_digit3 != '\0')
1502 *tgt++ = fw_ver_digit3;
1503 *tgt = '\0';
1504 /*
1505 Issue the Inquire Firmware Version Letter command.
1506 */
1507 if (strcmp(adapter->fw_ver, "3.3") >= 0) {
1508 if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_LETTER, NULL, 0,
1509 &fw_ver_letter,
1510 sizeof(fw_ver_letter)) != sizeof(fw_ver_letter))
1511 return blogic_failure(adapter,
1512 "INQUIRE FIRMWARE VERSION LETTER");
1513 if (fw_ver_letter != ' ' && fw_ver_letter != '\0')
1514 *tgt++ = fw_ver_letter;
1515 *tgt = '\0';
1516 }
1517 /*
1518 Save the Host Adapter SCSI ID in the Host Adapter structure.
1519 */
1520 adapter->scsi_id = config.id;
1521 /*
1522 Determine the Bus Type and save it in the Host Adapter structure,
1523 determine and save the IRQ Channel if necessary, and determine
1524 and save the DMA Channel for ISA Host Adapters.
1525 */
1526 adapter->adapter_bus_type =
1527 blogic_adater_bus_types[adapter->model[3] - '4'];
1528 if (adapter->irq_ch == 0) {
1529 if (config.irq_ch9)
1530 adapter->irq_ch = 9;
1531 else if (config.irq_ch10)
1532 adapter->irq_ch = 10;
1533 else if (config.irq_ch11)
1534 adapter->irq_ch = 11;
1535 else if (config.irq_ch12)
1536 adapter->irq_ch = 12;
1537 else if (config.irq_ch14)
1538 adapter->irq_ch = 14;
1539 else if (config.irq_ch15)
1540 adapter->irq_ch = 15;
1541 }
1542 if (adapter->adapter_bus_type == BLOGIC_ISA_BUS) {
1543 if (config.dma_ch5)
1544 adapter->dma_ch = 5;
1545 else if (config.dma_ch6)
1546 adapter->dma_ch = 6;
1547 else if (config.dma_ch7)
1548 adapter->dma_ch = 7;
1549 }
1550 /*
1551 Determine whether Extended Translation is enabled and save it in
1552 the Host Adapter structure.
1553 */
1554 georeg.all = blogic_rdgeom(adapter);
1555 adapter->ext_trans_enable = georeg.gr.ext_trans_enable;
1556 /*
1557 Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide
1558 SCSI flag, Differential SCSI flag, SCAM Supported flag, and
1559 Ultra SCSI flag in the Host Adapter structure.
1560 */
1561 adapter->adapter_sglimit = ext_setupinfo.sg_limit;
1562 adapter->drvr_sglimit = adapter->adapter_sglimit;
1563 if (adapter->adapter_sglimit > BLOGIC_SG_LIMIT)
1564 adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
1565 if (ext_setupinfo.misc.level_int)
1566 adapter->level_int = true;
1567 adapter->wide = ext_setupinfo.wide;
1568 adapter->differential = ext_setupinfo.differential;
1569 adapter->scam = ext_setupinfo.scam;
1570 adapter->ultra = ext_setupinfo.ultra;
1571 /*
1572 Determine whether Extended LUN Format CCBs are supported and save the
1573 information in the Host Adapter structure.
1574 */
1575 if (adapter->fw_ver[0] == '5' || (adapter->fw_ver[0] == '4' &&
1576 adapter->wide))
1577 adapter->ext_lun = true;
1578 /*
1579 Issue the Inquire PCI Host Adapter Information command to read the
1580 Termination Information from "W" series MultiMaster Host Adapters.
1581 */
1582 if (adapter->fw_ver[0] == '5') {
1583 if (blogic_cmd(adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
1584 &adapter_info,
1585 sizeof(adapter_info)) != sizeof(adapter_info))
1586 return blogic_failure(adapter,
1587 "INQUIRE PCI HOST ADAPTER INFORMATION");
1588 /*
1589 Save the Termination Information in the Host Adapter
1590 structure.
1591 */
1592 if (adapter_info.genericinfo_valid) {
1593 adapter->terminfo_valid = true;
1594 adapter->low_term = adapter_info.low_term;
1595 adapter->high_term = adapter_info.high_term;
1596 }
1597 }
1598 /*
1599 Issue the Fetch Host Adapter Local RAM command to read the
1600 AutoSCSI data from "W" and "C" series MultiMaster Host Adapters.
1601 */
1602 if (adapter->fw_ver[0] >= '4') {
1603 fetch_localram.offset = BLOGIC_AUTOSCSI_BASE;
1604 fetch_localram.count = sizeof(autoscsi);
1605 if (blogic_cmd(adapter, BLOGIC_FETCH_LOCALRAM, &fetch_localram,
1606 sizeof(fetch_localram), &autoscsi,
1607 sizeof(autoscsi)) != sizeof(autoscsi))
1608 return blogic_failure(adapter,
1609 "FETCH HOST ADAPTER LOCAL RAM");
1610 /*
1611 Save the Parity Checking Enabled, Bus Reset Enabled,
1612 and Termination Information in the Host Adapter structure.
1613 */
1614 adapter->parity = autoscsi.parity;
1615 adapter->reset_enabled = autoscsi.reset_enabled;
1616 if (adapter->fw_ver[0] == '4') {
1617 adapter->terminfo_valid = true;
1618 adapter->low_term = autoscsi.low_term;
1619 adapter->high_term = autoscsi.high_term;
1620 }
1621 /*
1622 Save the Wide Permitted, Fast Permitted, Synchronous
1623 Permitted, Disconnect Permitted, Ultra Permitted, and
1624 SCAM Information in the Host Adapter structure.
1625 */
1626 adapter->wide_ok = autoscsi.wide_ok;
1627 adapter->fast_ok = autoscsi.fast_ok;
1628 adapter->sync_ok = autoscsi.sync_ok;
1629 adapter->discon_ok = autoscsi.discon_ok;
1630 if (adapter->ultra)
1631 adapter->ultra_ok = autoscsi.ultra_ok;
1632 if (adapter->scam) {
1633 adapter->scam_enabled = autoscsi.scam_enabled;
1634 adapter->scam_lev2 = autoscsi.scam_lev2;
1635 }
1636 }
1637 /*
1638 Initialize fields in the Host Adapter structure for "S" and "A"
1639 series MultiMaster Host Adapters.
1640 */
1641 if (adapter->fw_ver[0] < '4') {
1642 if (setupinfo.sync) {
1643 adapter->sync_ok = 0xFF;
1644 if (adapter->adapter_bus_type == BLOGIC_EISA_BUS) {
1645 if (ext_setupinfo.misc.fast_on_eisa)
1646 adapter->fast_ok = 0xFF;
1647 if (strcmp(adapter->model, "BT-757") == 0)
1648 adapter->wide_ok = 0xFF;
1649 }
1650 }
1651 adapter->discon_ok = 0xFF;
1652 adapter->parity = setupinfo.parity;
1653 adapter->reset_enabled = true;
1654 }
1655 /*
1656 Determine the maximum number of Target IDs and Logical Units
1657 supported by this driver for Wide and Narrow Host Adapters.
1658 */
1659 adapter->maxdev = (adapter->wide ? 16 : 8);
1660 adapter->maxlun = (adapter->ext_lun ? 32 : 8);
1661 /*
1662 Select appropriate values for the Mailbox Count, Driver Queue Depth,
1663 Initial CCBs, and Incremental CCBs variables based on whether
1664 or not Strict Round Robin Mode is supported. If Strict Round
1665 Robin Mode is supported, then there is no performance degradation
1666 in using the maximum possible number of Outgoing and Incoming
1667 Mailboxes and allowing the Tagged and Untagged Queue Depths to
1668 determine the actual utilization. If Strict Round Robin Mode is
1669 not supported, then the Host Adapter must scan all the Outgoing
1670 Mailboxes whenever an Outgoing Mailbox entry is made, which can
1671 cause a substantial performance penalty. The host adapters
1672 actually have room to store the following number of CCBs
1673 internally; that is, they can internally queue and manage this
1674 many active commands on the SCSI bus simultaneously. Performance
1675 measurements demonstrate that the Driver Queue Depth should be
1676 set to the Mailbox Count, rather than the Host Adapter Queue
1677 Depth (internal CCB capacity), as it is more efficient to have the
1678 queued commands waiting in Outgoing Mailboxes if necessary than
1679 to block the process in the higher levels of the SCSI Subsystem.
1680
1681 192 BT-948/958/958D
1682 100 BT-946C/956C/956CD/747C/757C/757CD/445C
1683 50 BT-545C/540CF
1684 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A
1685 */
1686 if (adapter->fw_ver[0] == '5')
1687 adapter->adapter_qdepth = 192;
1688 else if (adapter->fw_ver[0] == '4')
1689 adapter->adapter_qdepth = (adapter->adapter_bus_type !=
1690 BLOGIC_ISA_BUS ? 100 : 50);
1691 else
1692 adapter->adapter_qdepth = 30;
1693 if (strcmp(adapter->fw_ver, "3.31") >= 0) {
1694 adapter->strict_rr = true;
1695 adapter->mbox_count = BLOGIC_MAX_MAILBOX;
1696 } else {
1697 adapter->strict_rr = false;
1698 adapter->mbox_count = 32;
1699 }
1700 adapter->drvr_qdepth = adapter->mbox_count;
1701 adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
1702 adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
1703 /*
1704 Tagged Queuing support is available and operates properly on
1705 all "W" series MultiMaster Host Adapters, on "C" series
1706 MultiMaster Host Adapters with firmware version 4.22 and above,
1707 and on "S" series MultiMaster Host Adapters with firmware version
1708 3.35 and above.
1709 */
1710 adapter->tagq_ok = 0;
1711 switch (adapter->fw_ver[0]) {
1712 case '5':
1713 adapter->tagq_ok = 0xFFFF;
1714 break;
1715 case '4':
1716 if (strcmp(adapter->fw_ver, "4.22") >= 0)
1717 adapter->tagq_ok = 0xFFFF;
1718 break;
1719 case '3':
1720 if (strcmp(adapter->fw_ver, "3.35") >= 0)
1721 adapter->tagq_ok = 0xFFFF;
1722 break;
1723 }
1724 /*
1725 Determine the Host Adapter BIOS Address if the BIOS is enabled and
1726 save it in the Host Adapter structure. The BIOS is disabled if the
1727 bios_addr is 0.
1728 */
1729 adapter->bios_addr = ext_setupinfo.bios_addr << 12;
1730 /*
1731 ISA Host Adapters require Bounce Buffers if there is more than
1732 16MB memory.
1733 */
1734 if (adapter->adapter_bus_type == BLOGIC_ISA_BUS &&
1735 (void *) high_memory > (void *) MAX_DMA_ADDRESS)
1736 adapter->need_bouncebuf = true;
1737 /*
1738 BusLogic BT-445S Host Adapters prior to board revision E have a
1739 hardware bug whereby when the BIOS is enabled, transfers to/from
1740 the same address range the BIOS occupies modulo 16MB are handled
1741 incorrectly. Only properly functioning BT-445S Host Adapters
1742 have firmware version 3.37, so require that ISA Bounce Buffers
1743 be used for the buggy BT-445S models if there is more than 16MB
1744 memory.
1745 */
1746 if (adapter->bios_addr > 0 && strcmp(adapter->model, "BT-445S") == 0 &&
1747 strcmp(adapter->fw_ver, "3.37") < 0 &&
1748 (void *) high_memory > (void *) MAX_DMA_ADDRESS)
1749 adapter->need_bouncebuf = true;
1750 /*
1751 Initialize parameters common to MultiMaster and FlashPoint
1752 Host Adapters.
1753 */
1754common:
1755 /*
1756 Initialize the Host Adapter Full Model Name from the Model Name.
1757 */
1758 strcpy(adapter->full_model, "BusLogic ");
1759 strcat(adapter->full_model, adapter->model);
1760 /*
1761 Select an appropriate value for the Tagged Queue Depth either from a
1762 BusLogic Driver Options specification, or based on whether this Host
1763 Adapter requires that ISA Bounce Buffers be used. The Tagged Queue
1764 Depth is left at 0 for automatic determination in
1765 BusLogic_SelectQueueDepths. Initialize the Untagged Queue Depth.
1766 */
1767 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
1768 unsigned char qdepth = 0;
1769 if (adapter->drvr_opts != NULL &&
1770 adapter->drvr_opts->qdepth[tgt_id] > 0)
1771 qdepth = adapter->drvr_opts->qdepth[tgt_id];
1772 else if (adapter->need_bouncebuf)
1773 qdepth = BLOGIC_TAG_DEPTH_BB;
1774 adapter->qdepth[tgt_id] = qdepth;
1775 }
1776 if (adapter->need_bouncebuf)
1777 adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH_BB;
1778 else
1779 adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH;
1780 if (adapter->drvr_opts != NULL)
1781 adapter->common_qdepth = adapter->drvr_opts->common_qdepth;
1782 if (adapter->common_qdepth > 0 &&
1783 adapter->common_qdepth < adapter->untag_qdepth)
1784 adapter->untag_qdepth = adapter->common_qdepth;
1785 /*
1786 Tagged Queuing is only allowed if Disconnect/Reconnect is permitted.
1787 Therefore, mask the Tagged Queuing Permitted Default bits with the
1788 Disconnect/Reconnect Permitted bits.
1789 */
1790 adapter->tagq_ok &= adapter->discon_ok;
1791 /*
1792 Combine the default Tagged Queuing Permitted bits with any
1793 BusLogic Driver Options Tagged Queuing specification.
1794 */
1795 if (adapter->drvr_opts != NULL)
1796 adapter->tagq_ok = (adapter->drvr_opts->tagq_ok &
1797 adapter->drvr_opts->tagq_ok_mask) |
1798 (adapter->tagq_ok & ~adapter->drvr_opts->tagq_ok_mask);
1799
1800 /*
1801 Select an appropriate value for Bus Settle Time either from a
1802 BusLogic Driver Options specification, or from
1803 BLOGIC_BUS_SETTLE_TIME.
1804 */
1805 if (adapter->drvr_opts != NULL &&
1806 adapter->drvr_opts->bus_settle_time > 0)
1807 adapter->bus_settle_time = adapter->drvr_opts->bus_settle_time;
1808 else
1809 adapter->bus_settle_time = BLOGIC_BUS_SETTLE_TIME;
1810 /*
1811 Indicate reading the Host Adapter Configuration completed
1812 successfully.
1813 */
1814 return true;
1815}
1816
1817
1818/*
1819 blogic_reportconfig reports the configuration of Host Adapter.
1820*/
1821
1822static bool __init blogic_reportconfig(struct blogic_adapter *adapter)
1823{
1824 unsigned short alltgt_mask = (1 << adapter->maxdev) - 1;
1825 unsigned short sync_ok, fast_ok;
1826 unsigned short ultra_ok, wide_ok;
1827 unsigned short discon_ok, tagq_ok;
1828 bool common_syncneg, common_tagq_depth;
1829 char syncstr[BLOGIC_MAXDEV + 1];
1830 char widestr[BLOGIC_MAXDEV + 1];
1831 char discon_str[BLOGIC_MAXDEV + 1];
1832 char tagq_str[BLOGIC_MAXDEV + 1];
1833 char *syncmsg = syncstr;
1834 char *widemsg = widestr;
1835 char *discon_msg = discon_str;
1836 char *tagq_msg = tagq_str;
1837 int tgt_id;
1838
1839 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" : ""));
1840 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"));
1841 if (adapter->adapter_bus_type != BLOGIC_PCI_BUS) {
1842 blogic_info(" DMA Channel: ", adapter);
1843 if (adapter->dma_ch > 0)
1844 blogic_info("%d, ", adapter, adapter->dma_ch);
1845 else
1846 blogic_info("None, ", adapter);
1847 if (adapter->bios_addr > 0)
1848 blogic_info("BIOS Address: 0x%lX, ", adapter,
1849 adapter->bios_addr);
1850 else
1851 blogic_info("BIOS Address: None, ", adapter);
1852 } else {
1853 blogic_info(" PCI Bus: %d, Device: %d, Address: ", adapter,
1854 adapter->bus, adapter->dev);
1855 if (adapter->pci_addr > 0)
1856 blogic_info("0x%lX, ", adapter, adapter->pci_addr);
1857 else
1858 blogic_info("Unassigned, ", adapter);
1859 }
1860 blogic_info("Host Adapter SCSI ID: %d\n", adapter, adapter->scsi_id);
1861 blogic_info(" Parity Checking: %s, Extended Translation: %s\n",
1862 adapter, (adapter->parity ? "Enabled" : "Disabled"),
1863 (adapter->ext_trans_enable ? "Enabled" : "Disabled"));
1864 alltgt_mask &= ~(1 << adapter->scsi_id);
1865 sync_ok = adapter->sync_ok & alltgt_mask;
1866 fast_ok = adapter->fast_ok & alltgt_mask;
1867 ultra_ok = adapter->ultra_ok & alltgt_mask;
1868 if ((blogic_multimaster_type(adapter) &&
1869 (adapter->fw_ver[0] >= '4' ||
1870 adapter->adapter_bus_type == BLOGIC_EISA_BUS)) ||
1871 blogic_flashpoint_type(adapter)) {
1872 common_syncneg = false;
1873 if (sync_ok == 0) {
1874 syncmsg = "Disabled";
1875 common_syncneg = true;
1876 } else if (sync_ok == alltgt_mask) {
1877 if (fast_ok == 0) {
1878 syncmsg = "Slow";
1879 common_syncneg = true;
1880 } else if (fast_ok == alltgt_mask) {
1881 if (ultra_ok == 0) {
1882 syncmsg = "Fast";
1883 common_syncneg = true;
1884 } else if (ultra_ok == alltgt_mask) {
1885 syncmsg = "Ultra";
1886 common_syncneg = true;
1887 }
1888 }
1889 }
1890 if (!common_syncneg) {
1891 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1892 syncstr[tgt_id] = ((!(sync_ok & (1 << tgt_id))) ? 'N' : (!(fast_ok & (1 << tgt_id)) ? 'S' : (!(ultra_ok & (1 << tgt_id)) ? 'F' : 'U')));
1893 syncstr[adapter->scsi_id] = '#';
1894 syncstr[adapter->maxdev] = '\0';
1895 }
1896 } else
1897 syncmsg = (sync_ok == 0 ? "Disabled" : "Enabled");
1898 wide_ok = adapter->wide_ok & alltgt_mask;
1899 if (wide_ok == 0)
1900 widemsg = "Disabled";
1901 else if (wide_ok == alltgt_mask)
1902 widemsg = "Enabled";
1903 else {
1904 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1905 widestr[tgt_id] = ((wide_ok & (1 << tgt_id)) ? 'Y' : 'N');
1906 widestr[adapter->scsi_id] = '#';
1907 widestr[adapter->maxdev] = '\0';
1908 }
1909 discon_ok = adapter->discon_ok & alltgt_mask;
1910 if (discon_ok == 0)
1911 discon_msg = "Disabled";
1912 else if (discon_ok == alltgt_mask)
1913 discon_msg = "Enabled";
1914 else {
1915 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1916 discon_str[tgt_id] = ((discon_ok & (1 << tgt_id)) ? 'Y' : 'N');
1917 discon_str[adapter->scsi_id] = '#';
1918 discon_str[adapter->maxdev] = '\0';
1919 }
1920 tagq_ok = adapter->tagq_ok & alltgt_mask;
1921 if (tagq_ok == 0)
1922 tagq_msg = "Disabled";
1923 else if (tagq_ok == alltgt_mask)
1924 tagq_msg = "Enabled";
1925 else {
1926 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1927 tagq_str[tgt_id] = ((tagq_ok & (1 << tgt_id)) ? 'Y' : 'N');
1928 tagq_str[adapter->scsi_id] = '#';
1929 tagq_str[adapter->maxdev] = '\0';
1930 }
1931 blogic_info(" Synchronous Negotiation: %s, Wide Negotiation: %s\n",
1932 adapter, syncmsg, widemsg);
1933 blogic_info(" Disconnect/Reconnect: %s, Tagged Queuing: %s\n", adapter,
1934 discon_msg, tagq_msg);
1935 if (blogic_multimaster_type(adapter)) {
1936 blogic_info(" Scatter/Gather Limit: %d of %d segments, Mailboxes: %d\n", adapter, adapter->drvr_sglimit, adapter->adapter_sglimit, adapter->mbox_count);
1937 blogic_info(" Driver Queue Depth: %d, Host Adapter Queue Depth: %d\n", adapter, adapter->drvr_qdepth, adapter->adapter_qdepth);
1938 } else
1939 blogic_info(" Driver Queue Depth: %d, Scatter/Gather Limit: %d segments\n", adapter, adapter->drvr_qdepth, adapter->drvr_sglimit);
1940 blogic_info(" Tagged Queue Depth: ", adapter);
1941 common_tagq_depth = true;
1942 for (tgt_id = 1; tgt_id < adapter->maxdev; tgt_id++)
1943 if (adapter->qdepth[tgt_id] != adapter->qdepth[0]) {
1944 common_tagq_depth = false;
1945 break;
1946 }
1947 if (common_tagq_depth) {
1948 if (adapter->qdepth[0] > 0)
1949 blogic_info("%d", adapter, adapter->qdepth[0]);
1950 else
1951 blogic_info("Automatic", adapter);
1952 } else
1953 blogic_info("Individual", adapter);
1954 blogic_info(", Untagged Queue Depth: %d\n", adapter,
1955 adapter->untag_qdepth);
1956 if (adapter->terminfo_valid) {
1957 if (adapter->wide)
1958 blogic_info(" SCSI Bus Termination: %s", adapter,
1959 (adapter->low_term ? (adapter->high_term ? "Both Enabled" : "Low Enabled") : (adapter->high_term ? "High Enabled" : "Both Disabled")));
1960 else
1961 blogic_info(" SCSI Bus Termination: %s", adapter,
1962 (adapter->low_term ? "Enabled" : "Disabled"));
1963 if (adapter->scam)
1964 blogic_info(", SCAM: %s", adapter,
1965 (adapter->scam_enabled ? (adapter->scam_lev2 ? "Enabled, Level 2" : "Enabled, Level 1") : "Disabled"));
1966 blogic_info("\n", adapter);
1967 }
1968 /*
1969 Indicate reporting the Host Adapter configuration completed
1970 successfully.
1971 */
1972 return true;
1973}
1974
1975
1976/*
1977 blogic_getres acquires the system resources necessary to use
1978 Host Adapter.
1979*/
1980
1981static bool __init blogic_getres(struct blogic_adapter *adapter)
1982{
1983 if (adapter->irq_ch == 0) {
1984 blogic_err("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n",
1985 adapter);
1986 return false;
1987 }
1988 /*
1989 Acquire shared access to the IRQ Channel.
1990 */
1991 if (request_irq(adapter->irq_ch, blogic_inthandler, IRQF_SHARED,
1992 adapter->full_model, adapter) < 0) {
1993 blogic_err("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n",
1994 adapter, adapter->irq_ch);
1995 return false;
1996 }
1997 adapter->irq_acquired = true;
1998 /*
1999 Acquire exclusive access to the DMA Channel.
2000 */
2001 if (adapter->dma_ch > 0) {
2002 if (request_dma(adapter->dma_ch, adapter->full_model) < 0) {
2003 blogic_err("UNABLE TO ACQUIRE DMA CHANNEL %d - DETACHING\n", adapter, adapter->dma_ch);
2004 return false;
2005 }
2006 set_dma_mode(adapter->dma_ch, DMA_MODE_CASCADE);
2007 enable_dma(adapter->dma_ch);
2008 adapter->dma_chan_acquired = true;
2009 }
2010 /*
2011 Indicate the System Resource Acquisition completed successfully,
2012 */
2013 return true;
2014}
2015
2016
2017/*
2018 blogic_relres releases any system resources previously acquired
2019 by blogic_getres.
2020*/
2021
2022static void blogic_relres(struct blogic_adapter *adapter)
2023{
2024 /*
2025 Release shared access to the IRQ Channel.
2026 */
2027 if (adapter->irq_acquired)
2028 free_irq(adapter->irq_ch, adapter);
2029 /*
2030 Release exclusive access to the DMA Channel.
2031 */
2032 if (adapter->dma_chan_acquired)
2033 free_dma(adapter->dma_ch);
2034 /*
2035 Release any allocated memory structs not released elsewhere
2036 */
2037 if (adapter->mbox_space)
2038 dma_free_coherent(&adapter->pci_device->dev, adapter->mbox_sz,
2039 adapter->mbox_space, adapter->mbox_space_handle);
2040 pci_dev_put(adapter->pci_device);
2041 adapter->mbox_space = NULL;
2042 adapter->mbox_space_handle = 0;
2043 adapter->mbox_sz = 0;
2044}
2045
2046
2047/*
2048 blogic_initadapter initializes Host Adapter. This is the only
2049 function called during SCSI Host Adapter detection which modifies the state
2050 of the Host Adapter from its initial power on or hard reset state.
2051*/
2052
2053static bool blogic_initadapter(struct blogic_adapter *adapter)
2054{
2055 struct blogic_extmbox_req extmbox_req;
2056 enum blogic_rr_req rr_req;
2057 enum blogic_setccb_fmt setccb_fmt;
2058 int tgt_id;
2059
2060 /*
2061 Initialize the pointers to the first and last CCBs that are
2062 queued for completion processing.
2063 */
2064 adapter->firstccb = NULL;
2065 adapter->lastccb = NULL;
2066
2067 /*
2068 Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active,
2069 Command Successful Flag, Active Commands, and Commands Since Reset
2070 for each Target Device.
2071 */
2072 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
2073 adapter->bdr_pend[tgt_id] = NULL;
2074 adapter->tgt_flags[tgt_id].tagq_active = false;
2075 adapter->tgt_flags[tgt_id].cmd_good = false;
2076 adapter->active_cmds[tgt_id] = 0;
2077 adapter->cmds_since_rst[tgt_id] = 0;
2078 }
2079
2080 /*
2081 FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes.
2082 */
2083 if (blogic_flashpoint_type(adapter))
2084 goto done;
2085
2086 /*
2087 Initialize the Outgoing and Incoming Mailbox pointers.
2088 */
2089 adapter->mbox_sz = adapter->mbox_count * (sizeof(struct blogic_outbox) + sizeof(struct blogic_inbox));
2090 adapter->mbox_space = dma_alloc_coherent(&adapter->pci_device->dev,
2091 adapter->mbox_sz, &adapter->mbox_space_handle,
2092 GFP_KERNEL);
2093 if (adapter->mbox_space == NULL)
2094 return blogic_failure(adapter, "MAILBOX ALLOCATION");
2095 adapter->first_outbox = (struct blogic_outbox *) adapter->mbox_space;
2096 adapter->last_outbox = adapter->first_outbox + adapter->mbox_count - 1;
2097 adapter->next_outbox = adapter->first_outbox;
2098 adapter->first_inbox = (struct blogic_inbox *) (adapter->last_outbox + 1);
2099 adapter->last_inbox = adapter->first_inbox + adapter->mbox_count - 1;
2100 adapter->next_inbox = adapter->first_inbox;
2101
2102 /*
2103 Initialize the Outgoing and Incoming Mailbox structures.
2104 */
2105 memset(adapter->first_outbox, 0,
2106 adapter->mbox_count * sizeof(struct blogic_outbox));
2107 memset(adapter->first_inbox, 0,
2108 adapter->mbox_count * sizeof(struct blogic_inbox));
2109
2110 /*
2111 Initialize the Host Adapter's Pointer to the Outgoing/Incoming
2112 Mailboxes.
2113 */
2114 extmbox_req.mbox_count = adapter->mbox_count;
2115 extmbox_req.base_mbox_addr = (u32) adapter->mbox_space_handle;
2116 if (blogic_cmd(adapter, BLOGIC_INIT_EXT_MBOX, &extmbox_req,
2117 sizeof(extmbox_req), NULL, 0) < 0)
2118 return blogic_failure(adapter, "MAILBOX INITIALIZATION");
2119 /*
2120 Enable Strict Round Robin Mode if supported by the Host Adapter. In
2121 Strict Round Robin Mode, the Host Adapter only looks at the next
2122 Outgoing Mailbox for each new command, rather than scanning
2123 through all the Outgoing Mailboxes to find any that have new
2124 commands in them. Strict Round Robin Mode is significantly more
2125 efficient.
2126 */
2127 if (adapter->strict_rr) {
2128 rr_req = BLOGIC_STRICT_RR_MODE;
2129 if (blogic_cmd(adapter, BLOGIC_STRICT_RR, &rr_req,
2130 sizeof(rr_req), NULL, 0) < 0)
2131 return blogic_failure(adapter,
2132 "ENABLE STRICT ROUND ROBIN MODE");
2133 }
2134
2135 /*
2136 For Host Adapters that support Extended LUN Format CCBs, issue the
2137 Set CCB Format command to allow 32 Logical Units per Target Device.
2138 */
2139 if (adapter->ext_lun) {
2140 setccb_fmt = BLOGIC_EXT_LUN_CCB;
2141 if (blogic_cmd(adapter, BLOGIC_SETCCB_FMT, &setccb_fmt,
2142 sizeof(setccb_fmt), NULL, 0) < 0)
2143 return blogic_failure(adapter, "SET CCB FORMAT");
2144 }
2145
2146 /*
2147 Announce Successful Initialization.
2148 */
2149done:
2150 if (!adapter->adapter_initd) {
2151 blogic_info("*** %s Initialized Successfully ***\n", adapter,
2152 adapter->full_model);
2153 blogic_info("\n", adapter);
2154 } else
2155 blogic_warn("*** %s Initialized Successfully ***\n", adapter,
2156 adapter->full_model);
2157 adapter->adapter_initd = true;
2158
2159 /*
2160 Indicate the Host Adapter Initialization completed successfully.
2161 */
2162 return true;
2163}
2164
2165
2166/*
2167 blogic_inquiry inquires about the Target Devices accessible
2168 through Host Adapter.
2169*/
2170
2171static bool __init blogic_inquiry(struct blogic_adapter *adapter)
2172{
2173 u16 installed_devs;
2174 u8 installed_devs0to7[8];
2175 struct blogic_setup_info setupinfo;
2176 u8 sync_period[BLOGIC_MAXDEV];
2177 unsigned char req_replylen;
2178 int tgt_id;
2179
2180 /*
2181 Wait a few seconds between the Host Adapter Hard Reset which
2182 initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
2183 SCSI devices get confused if they receive SCSI Commands too soon
2184 after a SCSI Bus Reset.
2185 */
2186 blogic_delay(adapter->bus_settle_time);
2187 /*
2188 FlashPoint Host Adapters do not provide for Target Device Inquiry.
2189 */
2190 if (blogic_flashpoint_type(adapter))
2191 return true;
2192 /*
2193 Inhibit the Target Device Inquiry if requested.
2194 */
2195 if (adapter->drvr_opts != NULL && adapter->drvr_opts->stop_tgt_inquiry)
2196 return true;
2197 /*
2198 Issue the Inquire Target Devices command for host adapters with
2199 firmware version 4.25 or later, or the Inquire Installed Devices
2200 ID 0 to 7 command for older host adapters. This is necessary to
2201 force Synchronous Transfer Negotiation so that the Inquire Setup
2202 Information and Inquire Synchronous Period commands will return
2203 valid data. The Inquire Target Devices command is preferable to
2204 Inquire Installed Devices ID 0 to 7 since it only probes Logical
2205 Unit 0 of each Target Device.
2206 */
2207 if (strcmp(adapter->fw_ver, "4.25") >= 0) {
2208
2209 /*
2210 Issue a Inquire Target Devices command. Inquire Target
2211 Devices only tests Logical Unit 0 of each Target Device
2212 unlike the Inquire Installed Devices commands which test
2213 Logical Units 0 - 7. Two bytes are returned, where byte
2214 0 bit 0 set indicates that Target Device 0 exists, and so on.
2215 */
2216
2217 if (blogic_cmd(adapter, BLOGIC_INQ_DEV, NULL, 0,
2218 &installed_devs, sizeof(installed_devs))
2219 != sizeof(installed_devs))
2220 return blogic_failure(adapter, "INQUIRE TARGET DEVICES");
2221 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2222 adapter->tgt_flags[tgt_id].tgt_exists =
2223 (installed_devs & (1 << tgt_id) ? true : false);
2224 } else {
2225
2226 /*
2227 Issue an Inquire Installed Devices command. For each
2228 Target Device, a byte is returned where bit 0 set
2229 indicates that Logical Unit 0 * exists, bit 1 set
2230 indicates that Logical Unit 1 exists, and so on.
2231 */
2232
2233 if (blogic_cmd(adapter, BLOGIC_INQ_DEV0TO7, NULL, 0,
2234 &installed_devs0to7, sizeof(installed_devs0to7))
2235 != sizeof(installed_devs0to7))
2236 return blogic_failure(adapter,
2237 "INQUIRE INSTALLED DEVICES ID 0 TO 7");
2238 for (tgt_id = 0; tgt_id < 8; tgt_id++)
2239 adapter->tgt_flags[tgt_id].tgt_exists =
2240 installed_devs0to7[tgt_id] != 0;
2241 }
2242 /*
2243 Issue the Inquire Setup Information command.
2244 */
2245 req_replylen = sizeof(setupinfo);
2246 if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
2247 sizeof(req_replylen), &setupinfo, sizeof(setupinfo))
2248 != sizeof(setupinfo))
2249 return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
2250 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2251 adapter->sync_offset[tgt_id] = (tgt_id < 8 ? setupinfo.sync0to7[tgt_id].offset : setupinfo.sync8to15[tgt_id - 8].offset);
2252 if (strcmp(adapter->fw_ver, "5.06L") >= 0)
2253 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2254 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));
2255 /*
2256 Issue the Inquire Synchronous Period command.
2257 */
2258 if (adapter->fw_ver[0] >= '3') {
2259
2260 /* Issue a Inquire Synchronous Period command. For each
2261 Target Device, a byte is returned which represents the
2262 Synchronous Transfer Period in units of 10 nanoseconds.
2263 */
2264
2265 req_replylen = sizeof(sync_period);
2266 if (blogic_cmd(adapter, BLOGIC_INQ_SYNC_PERIOD, &req_replylen,
2267 sizeof(req_replylen), &sync_period,
2268 sizeof(sync_period)) != sizeof(sync_period))
2269 return blogic_failure(adapter,
2270 "INQUIRE SYNCHRONOUS PERIOD");
2271 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2272 adapter->sync_period[tgt_id] = sync_period[tgt_id];
2273 } else
2274 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2275 if (setupinfo.sync0to7[tgt_id].offset > 0)
2276 adapter->sync_period[tgt_id] = 20 + 5 * setupinfo.sync0to7[tgt_id].tx_period;
2277 /*
2278 Indicate the Target Device Inquiry completed successfully.
2279 */
2280 return true;
2281}
2282
2283/*
2284 blogic_inithoststruct initializes the fields in the SCSI Host
2285 structure. The base, io_port, n_io_ports, irq, and dma_channel fields in the
2286 SCSI Host structure are intentionally left uninitialized, as this driver
2287 handles acquisition and release of these resources explicitly, as well as
2288 ensuring exclusive access to the Host Adapter hardware and data structures
2289 through explicit acquisition and release of the Host Adapter's Lock.
2290*/
2291
2292static void __init blogic_inithoststruct(struct blogic_adapter *adapter,
2293 struct Scsi_Host *host)
2294{
2295 host->max_id = adapter->maxdev;
2296 host->max_lun = adapter->maxlun;
2297 host->max_channel = 0;
2298 host->unique_id = adapter->io_addr;
2299 host->this_id = adapter->scsi_id;
2300 host->can_queue = adapter->drvr_qdepth;
2301 host->sg_tablesize = adapter->drvr_sglimit;
2302 host->unchecked_isa_dma = adapter->need_bouncebuf;
2303 host->cmd_per_lun = adapter->untag_qdepth;
2304}
2305
2306/*
2307 blogic_slaveconfig will actually set the queue depth on individual
2308 scsi devices as they are permanently added to the device chain. We
2309 shamelessly rip off the SelectQueueDepths code to make this work mostly
2310 like it used to. Since we don't get called once at the end of the scan
2311 but instead get called for each device, we have to do things a bit
2312 differently.
2313*/
2314static int blogic_slaveconfig(struct scsi_device *dev)
2315{
2316 struct blogic_adapter *adapter =
2317 (struct blogic_adapter *) dev->host->hostdata;
2318 int tgt_id = dev->id;
2319 int qdepth = adapter->qdepth[tgt_id];
2320
2321 if (adapter->tgt_flags[tgt_id].tagq_ok &&
2322 (adapter->tagq_ok & (1 << tgt_id))) {
2323 if (qdepth == 0)
2324 qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH;
2325 adapter->qdepth[tgt_id] = qdepth;
2326 scsi_change_queue_depth(dev, qdepth);
2327 } else {
2328 adapter->tagq_ok &= ~(1 << tgt_id);
2329 qdepth = adapter->untag_qdepth;
2330 adapter->qdepth[tgt_id] = qdepth;
2331 scsi_change_queue_depth(dev, qdepth);
2332 }
2333 qdepth = 0;
2334 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2335 if (adapter->tgt_flags[tgt_id].tgt_exists)
2336 qdepth += adapter->qdepth[tgt_id];
2337 if (qdepth > adapter->alloc_ccbs)
2338 blogic_create_addlccbs(adapter, qdepth - adapter->alloc_ccbs,
2339 false);
2340 return 0;
2341}
2342
2343/*
2344 blogic_init probes for BusLogic Host Adapters at the standard
2345 I/O Addresses where they may be located, initializing, registering, and
2346 reporting the configuration of each BusLogic Host Adapter it finds. It
2347 returns the number of BusLogic Host Adapters successfully initialized and
2348 registered.
2349*/
2350
2351static int __init blogic_init(void)
2352{
2353 int adapter_count = 0, drvr_optindex = 0, probeindex;
2354 struct blogic_adapter *adapter;
2355 int ret = 0;
2356
2357#ifdef MODULE
2358 if (BusLogic)
2359 blogic_setup(BusLogic);
2360#endif
2361
2362 if (blogic_probe_options.noprobe)
2363 return -ENODEV;
2364 blogic_probeinfo_list =
2365 kcalloc(BLOGIC_MAX_ADAPTERS, sizeof(struct blogic_probeinfo),
2366 GFP_KERNEL);
2367 if (blogic_probeinfo_list == NULL) {
2368 blogic_err("BusLogic: Unable to allocate Probe Info List\n",
2369 NULL);
2370 return -ENOMEM;
2371 }
2372
2373 adapter = kzalloc(sizeof(struct blogic_adapter), GFP_KERNEL);
2374 if (adapter == NULL) {
2375 kfree(blogic_probeinfo_list);
2376 blogic_err("BusLogic: Unable to allocate Prototype Host Adapter\n", NULL);
2377 return -ENOMEM;
2378 }
2379
2380#ifdef MODULE
2381 if (BusLogic != NULL)
2382 blogic_setup(BusLogic);
2383#endif
2384 blogic_init_probeinfo_list(adapter);
2385 for (probeindex = 0; probeindex < blogic_probeinfo_count; probeindex++) {
2386 struct blogic_probeinfo *probeinfo =
2387 &blogic_probeinfo_list[probeindex];
2388 struct blogic_adapter *myadapter = adapter;
2389 struct Scsi_Host *host;
2390
2391 if (probeinfo->io_addr == 0)
2392 continue;
2393 memset(myadapter, 0, sizeof(struct blogic_adapter));
2394 myadapter->adapter_type = probeinfo->adapter_type;
2395 myadapter->adapter_bus_type = probeinfo->adapter_bus_type;
2396 myadapter->io_addr = probeinfo->io_addr;
2397 myadapter->pci_addr = probeinfo->pci_addr;
2398 myadapter->bus = probeinfo->bus;
2399 myadapter->dev = probeinfo->dev;
2400 myadapter->pci_device = probeinfo->pci_device;
2401 myadapter->irq_ch = probeinfo->irq_ch;
2402 myadapter->addr_count =
2403 blogic_adapter_addr_count[myadapter->adapter_type];
2404
2405 /*
2406 Make sure region is free prior to probing.
2407 */
2408 if (!request_region(myadapter->io_addr, myadapter->addr_count,
2409 "BusLogic"))
2410 continue;
2411 /*
2412 Probe the Host Adapter. If unsuccessful, abort further
2413 initialization.
2414 */
2415 if (!blogic_probe(myadapter)) {
2416 release_region(myadapter->io_addr,
2417 myadapter->addr_count);
2418 continue;
2419 }
2420 /*
2421 Hard Reset the Host Adapter. If unsuccessful, abort further
2422 initialization.
2423 */
2424 if (!blogic_hwreset(myadapter, true)) {
2425 release_region(myadapter->io_addr,
2426 myadapter->addr_count);
2427 continue;
2428 }
2429 /*
2430 Check the Host Adapter. If unsuccessful, abort further
2431 initialization.
2432 */
2433 if (!blogic_checkadapter(myadapter)) {
2434 release_region(myadapter->io_addr,
2435 myadapter->addr_count);
2436 continue;
2437 }
2438 /*
2439 Initialize the Driver Options field if provided.
2440 */
2441 if (drvr_optindex < blogic_drvr_options_count)
2442 myadapter->drvr_opts =
2443 &blogic_drvr_options[drvr_optindex++];
2444 /*
2445 Announce the Driver Version and Date, Author's Name,
2446 Copyright Notice, and Electronic Mail Address.
2447 */
2448 blogic_announce_drvr(myadapter);
2449 /*
2450 Register the SCSI Host structure.
2451 */
2452
2453 host = scsi_host_alloc(&blogic_template,
2454 sizeof(struct blogic_adapter));
2455 if (host == NULL) {
2456 release_region(myadapter->io_addr,
2457 myadapter->addr_count);
2458 continue;
2459 }
2460 myadapter = (struct blogic_adapter *) host->hostdata;
2461 memcpy(myadapter, adapter, sizeof(struct blogic_adapter));
2462 myadapter->scsi_host = host;
2463 myadapter->host_no = host->host_no;
2464 /*
2465 Add Host Adapter to the end of the list of registered
2466 BusLogic Host Adapters.
2467 */
2468 list_add_tail(&myadapter->host_list, &blogic_host_list);
2469
2470 /*
2471 Read the Host Adapter Configuration, Configure the Host
2472 Adapter, Acquire the System Resources necessary to use
2473 the Host Adapter, then Create the Initial CCBs, Initialize
2474 the Host Adapter, and finally perform Target Device
2475 Inquiry. From this point onward, any failure will be
2476 assumed to be due to a problem with the Host Adapter,
2477 rather than due to having mistakenly identified this port
2478 as belonging to a BusLogic Host Adapter. The I/O Address
2479 range will not be released, thereby preventing it from
2480 being incorrectly identified as any other type of Host
2481 Adapter.
2482 */
2483 if (blogic_rdconfig(myadapter) &&
2484 blogic_reportconfig(myadapter) &&
2485 blogic_getres(myadapter) &&
2486 blogic_create_initccbs(myadapter) &&
2487 blogic_initadapter(myadapter) &&
2488 blogic_inquiry(myadapter)) {
2489 /*
2490 Initialization has been completed successfully.
2491 Release and re-register usage of the I/O Address
2492 range so that the Model Name of the Host Adapter
2493 will appear, and initialize the SCSI Host structure.
2494 */
2495 release_region(myadapter->io_addr,
2496 myadapter->addr_count);
2497 if (!request_region(myadapter->io_addr,
2498 myadapter->addr_count,
2499 myadapter->full_model)) {
2500 printk(KERN_WARNING
2501 "BusLogic: Release and re-register of "
2502 "port 0x%04lx failed \n",
2503 (unsigned long)myadapter->io_addr);
2504 blogic_destroy_ccbs(myadapter);
2505 blogic_relres(myadapter);
2506 list_del(&myadapter->host_list);
2507 scsi_host_put(host);
2508 ret = -ENOMEM;
2509 } else {
2510 blogic_inithoststruct(myadapter,
2511 host);
2512 if (scsi_add_host(host, myadapter->pci_device
2513 ? &myadapter->pci_device->dev
2514 : NULL)) {
2515 printk(KERN_WARNING
2516 "BusLogic: scsi_add_host()"
2517 "failed!\n");
2518 blogic_destroy_ccbs(myadapter);
2519 blogic_relres(myadapter);
2520 list_del(&myadapter->host_list);
2521 scsi_host_put(host);
2522 ret = -ENODEV;
2523 } else {
2524 scsi_scan_host(host);
2525 adapter_count++;
2526 }
2527 }
2528 } else {
2529 /*
2530 An error occurred during Host Adapter Configuration
2531 Querying, Host Adapter Configuration, Resource
2532 Acquisition, CCB Creation, Host Adapter
2533 Initialization, or Target Device Inquiry, so
2534 remove Host Adapter from the list of registered
2535 BusLogic Host Adapters, destroy the CCBs, Release
2536 the System Resources, and Unregister the SCSI
2537 Host.
2538 */
2539 blogic_destroy_ccbs(myadapter);
2540 blogic_relres(myadapter);
2541 list_del(&myadapter->host_list);
2542 scsi_host_put(host);
2543 ret = -ENODEV;
2544 }
2545 }
2546 kfree(adapter);
2547 kfree(blogic_probeinfo_list);
2548 blogic_probeinfo_list = NULL;
2549 return ret;
2550}
2551
2552
2553/*
2554 blogic_deladapter releases all resources previously acquired to
2555 support a specific Host Adapter, including the I/O Address range, and
2556 unregisters the BusLogic Host Adapter.
2557*/
2558
2559static int __exit blogic_deladapter(struct blogic_adapter *adapter)
2560{
2561 struct Scsi_Host *host = adapter->scsi_host;
2562
2563 scsi_remove_host(host);
2564
2565 /*
2566 FlashPoint Host Adapters must first be released by the FlashPoint
2567 SCCB Manager.
2568 */
2569 if (blogic_flashpoint_type(adapter))
2570 FlashPoint_ReleaseHostAdapter(adapter->cardhandle);
2571 /*
2572 Destroy the CCBs and release any system resources acquired to
2573 support Host Adapter.
2574 */
2575 blogic_destroy_ccbs(adapter);
2576 blogic_relres(adapter);
2577 /*
2578 Release usage of the I/O Address range.
2579 */
2580 release_region(adapter->io_addr, adapter->addr_count);
2581 /*
2582 Remove Host Adapter from the list of registered BusLogic
2583 Host Adapters.
2584 */
2585 list_del(&adapter->host_list);
2586
2587 scsi_host_put(host);
2588 return 0;
2589}
2590
2591
2592/*
2593 blogic_qcompleted_ccb queues CCB for completion processing.
2594*/
2595
2596static void blogic_qcompleted_ccb(struct blogic_ccb *ccb)
2597{
2598 struct blogic_adapter *adapter = ccb->adapter;
2599
2600 ccb->status = BLOGIC_CCB_COMPLETE;
2601 ccb->next = NULL;
2602 if (adapter->firstccb == NULL) {
2603 adapter->firstccb = ccb;
2604 adapter->lastccb = ccb;
2605 } else {
2606 adapter->lastccb->next = ccb;
2607 adapter->lastccb = ccb;
2608 }
2609 adapter->active_cmds[ccb->tgt_id]--;
2610}
2611
2612
2613/*
2614 blogic_resultcode computes a SCSI Subsystem Result Code from
2615 the Host Adapter Status and Target Device Status.
2616*/
2617
2618static int blogic_resultcode(struct blogic_adapter *adapter,
2619 enum blogic_adapter_status adapter_status,
2620 enum blogic_tgt_status tgt_status)
2621{
2622 int hoststatus;
2623
2624 switch (adapter_status) {
2625 case BLOGIC_CMD_CMPLT_NORMAL:
2626 case BLOGIC_LINK_CMD_CMPLT:
2627 case BLOGIC_LINK_CMD_CMPLT_FLAG:
2628 hoststatus = DID_OK;
2629 break;
2630 case BLOGIC_SELECT_TIMEOUT:
2631 hoststatus = DID_TIME_OUT;
2632 break;
2633 case BLOGIC_INVALID_OUTBOX_CODE:
2634 case BLOGIC_INVALID_CMD_CODE:
2635 case BLOGIC_BAD_CMD_PARAM:
2636 blogic_warn("BusLogic Driver Protocol Error 0x%02X\n",
2637 adapter, adapter_status);
2638 fallthrough;
2639 case BLOGIC_DATA_UNDERRUN:
2640 case BLOGIC_DATA_OVERRUN:
2641 case BLOGIC_NOEXPECT_BUSFREE:
2642 case BLOGIC_LINKCCB_BADLUN:
2643 case BLOGIC_AUTOREQSENSE_FAIL:
2644 case BLOGIC_TAGQUEUE_REJECT:
2645 case BLOGIC_BAD_MSG_RCVD:
2646 case BLOGIC_HW_FAIL:
2647 case BLOGIC_BAD_RECONNECT:
2648 case BLOGIC_ABRT_QUEUE:
2649 case BLOGIC_ADAPTER_SW_ERROR:
2650 case BLOGIC_HW_TIMEOUT:
2651 case BLOGIC_PARITY_ERR:
2652 hoststatus = DID_ERROR;
2653 break;
2654 case BLOGIC_INVALID_BUSPHASE:
2655 case BLOGIC_NORESPONSE_TO_ATN:
2656 case BLOGIC_HW_RESET:
2657 case BLOGIC_RST_FROM_OTHERDEV:
2658 case BLOGIC_HW_BDR:
2659 hoststatus = DID_RESET;
2660 break;
2661 default:
2662 blogic_warn("Unknown Host Adapter Status 0x%02X\n", adapter,
2663 adapter_status);
2664 hoststatus = DID_ERROR;
2665 break;
2666 }
2667 return (hoststatus << 16) | tgt_status;
2668}
2669
2670
2671/*
2672 blogic_scan_inbox scans the Incoming Mailboxes saving any
2673 Incoming Mailbox entries for completion processing.
2674*/
2675
2676static void blogic_scan_inbox(struct blogic_adapter *adapter)
2677{
2678 /*
2679 Scan through the Incoming Mailboxes in Strict Round Robin
2680 fashion, saving any completed CCBs for further processing. It
2681 is essential that for each CCB and SCSI Command issued, command
2682 completion processing is performed exactly once. Therefore,
2683 only Incoming Mailboxes with completion code Command Completed
2684 Without Error, Command Completed With Error, or Command Aborted
2685 At Host Request are saved for completion processing. When an
2686 Incoming Mailbox has a completion code of Aborted Command Not
2687 Found, the CCB had already completed or been aborted before the
2688 current Abort request was processed, and so completion processing
2689 has already occurred and no further action should be taken.
2690 */
2691 struct blogic_inbox *next_inbox = adapter->next_inbox;
2692 enum blogic_cmplt_code comp_code;
2693
2694 while ((comp_code = next_inbox->comp_code) != BLOGIC_INBOX_FREE) {
2695 /*
2696 We are only allowed to do this because we limit our
2697 architectures we run on to machines where bus_to_virt(
2698 actually works. There *needs* to be a dma_addr_to_virt()
2699 in the new PCI DMA mapping interface to replace
2700 bus_to_virt() or else this code is going to become very
2701 innefficient.
2702 */
2703 struct blogic_ccb *ccb =
2704 (struct blogic_ccb *) bus_to_virt(next_inbox->ccb);
2705 if (comp_code != BLOGIC_CMD_NOTFOUND) {
2706 if (ccb->status == BLOGIC_CCB_ACTIVE ||
2707 ccb->status == BLOGIC_CCB_RESET) {
2708 /*
2709 Save the Completion Code for this CCB and
2710 queue the CCB for completion processing.
2711 */
2712 ccb->comp_code = comp_code;
2713 blogic_qcompleted_ccb(ccb);
2714 } else {
2715 /*
2716 If a CCB ever appears in an Incoming Mailbox
2717 and is not marked as status Active or Reset,
2718 then there is most likely a bug in
2719 the Host Adapter firmware.
2720 */
2721 blogic_warn("Illegal CCB #%ld status %d in Incoming Mailbox\n", adapter, ccb->serial, ccb->status);
2722 }
2723 }
2724 next_inbox->comp_code = BLOGIC_INBOX_FREE;
2725 if (++next_inbox > adapter->last_inbox)
2726 next_inbox = adapter->first_inbox;
2727 }
2728 adapter->next_inbox = next_inbox;
2729}
2730
2731
2732/*
2733 blogic_process_ccbs iterates over the completed CCBs for Host
2734 Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and
2735 calling the SCSI Subsystem Completion Routines. The Host Adapter's Lock
2736 should already have been acquired by the caller.
2737*/
2738
2739static void blogic_process_ccbs(struct blogic_adapter *adapter)
2740{
2741 if (adapter->processing_ccbs)
2742 return;
2743 adapter->processing_ccbs = true;
2744 while (adapter->firstccb != NULL) {
2745 struct blogic_ccb *ccb = adapter->firstccb;
2746 struct scsi_cmnd *command = ccb->command;
2747 adapter->firstccb = ccb->next;
2748 if (adapter->firstccb == NULL)
2749 adapter->lastccb = NULL;
2750 /*
2751 Process the Completed CCB.
2752 */
2753 if (ccb->opcode == BLOGIC_BDR) {
2754 int tgt_id = ccb->tgt_id;
2755
2756 blogic_warn("Bus Device Reset CCB #%ld to Target %d Completed\n", adapter, ccb->serial, tgt_id);
2757 blogic_inc_count(&adapter->tgt_stats[tgt_id].bdr_done);
2758 adapter->tgt_flags[tgt_id].tagq_active = false;
2759 adapter->cmds_since_rst[tgt_id] = 0;
2760 adapter->last_resetdone[tgt_id] = jiffies;
2761 /*
2762 Place CCB back on the Host Adapter's free list.
2763 */
2764 blogic_dealloc_ccb(ccb, 1);
2765#if 0 /* this needs to be redone different for new EH */
2766 /*
2767 Bus Device Reset CCBs have the command field
2768 non-NULL only when a Bus Device Reset was requested
2769 for a command that did not have a currently active
2770 CCB in the Host Adapter (i.e., a Synchronous Bus
2771 Device Reset), and hence would not have its
2772 Completion Routine called otherwise.
2773 */
2774 while (command != NULL) {
2775 struct scsi_cmnd *nxt_cmd =
2776 command->reset_chain;
2777 command->reset_chain = NULL;
2778 command->result = DID_RESET << 16;
2779 command->scsi_done(command);
2780 command = nxt_cmd;
2781 }
2782#endif
2783 /*
2784 Iterate over the CCBs for this Host Adapter
2785 performing completion processing for any CCBs
2786 marked as Reset for this Target.
2787 */
2788 for (ccb = adapter->all_ccbs; ccb != NULL;
2789 ccb = ccb->next_all)
2790 if (ccb->status == BLOGIC_CCB_RESET &&
2791 ccb->tgt_id == tgt_id) {
2792 command = ccb->command;
2793 blogic_dealloc_ccb(ccb, 1);
2794 adapter->active_cmds[tgt_id]--;
2795 command->result = DID_RESET << 16;
2796 command->scsi_done(command);
2797 }
2798 adapter->bdr_pend[tgt_id] = NULL;
2799 } else {
2800 /*
2801 Translate the Completion Code, Host Adapter Status,
2802 and Target Device Status into a SCSI Subsystem
2803 Result Code.
2804 */
2805 switch (ccb->comp_code) {
2806 case BLOGIC_INBOX_FREE:
2807 case BLOGIC_CMD_NOTFOUND:
2808 case BLOGIC_INVALID_CCB:
2809 blogic_warn("CCB #%ld to Target %d Impossible State\n", adapter, ccb->serial, ccb->tgt_id);
2810 break;
2811 case BLOGIC_CMD_COMPLETE_GOOD:
2812 adapter->tgt_stats[ccb->tgt_id]
2813 .cmds_complete++;
2814 adapter->tgt_flags[ccb->tgt_id]
2815 .cmd_good = true;
2816 command->result = DID_OK << 16;
2817 break;
2818 case BLOGIC_CMD_ABORT_BY_HOST:
2819 blogic_warn("CCB #%ld to Target %d Aborted\n",
2820 adapter, ccb->serial, ccb->tgt_id);
2821 blogic_inc_count(&adapter->tgt_stats[ccb->tgt_id].aborts_done);
2822 command->result = DID_ABORT << 16;
2823 break;
2824 case BLOGIC_CMD_COMPLETE_ERROR:
2825 command->result = blogic_resultcode(adapter,
2826 ccb->adapter_status, ccb->tgt_status);
2827 if (ccb->adapter_status != BLOGIC_SELECT_TIMEOUT) {
2828 adapter->tgt_stats[ccb->tgt_id]
2829 .cmds_complete++;
2830 if (blogic_global_options.trace_err) {
2831 int i;
2832 blogic_notice("CCB #%ld Target %d: Result %X Host "
2833 "Adapter Status %02X Target Status %02X\n", adapter, ccb->serial, ccb->tgt_id, command->result, ccb->adapter_status, ccb->tgt_status);
2834 blogic_notice("CDB ", adapter);
2835 for (i = 0; i < ccb->cdblen; i++)
2836 blogic_notice(" %02X", adapter, ccb->cdb[i]);
2837 blogic_notice("\n", adapter);
2838 blogic_notice("Sense ", adapter);
2839 for (i = 0; i < ccb->sense_datalen; i++)
2840 blogic_notice(" %02X", adapter, command->sense_buffer[i]);
2841 blogic_notice("\n", adapter);
2842 }
2843 }
2844 break;
2845 }
2846 /*
2847 When an INQUIRY command completes normally, save the
2848 CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit
2849 Wide Data Transfers Supported) bits.
2850 */
2851 if (ccb->cdb[0] == INQUIRY && ccb->cdb[1] == 0 &&
2852 ccb->adapter_status == BLOGIC_CMD_CMPLT_NORMAL) {
2853 struct blogic_tgt_flags *tgt_flags =
2854 &adapter->tgt_flags[ccb->tgt_id];
2855 struct scsi_inquiry *inquiry =
2856 (struct scsi_inquiry *) scsi_sglist(command);
2857 tgt_flags->tgt_exists = true;
2858 tgt_flags->tagq_ok = inquiry->CmdQue;
2859 tgt_flags->wide_ok = inquiry->WBus16;
2860 }
2861 /*
2862 Place CCB back on the Host Adapter's free list.
2863 */
2864 blogic_dealloc_ccb(ccb, 1);
2865 /*
2866 Call the SCSI Command Completion Routine.
2867 */
2868 command->scsi_done(command);
2869 }
2870 }
2871 adapter->processing_ccbs = false;
2872}
2873
2874
2875/*
2876 blogic_inthandler handles hardware interrupts from BusLogic Host
2877 Adapters.
2878*/
2879
2880static irqreturn_t blogic_inthandler(int irq_ch, void *devid)
2881{
2882 struct blogic_adapter *adapter = (struct blogic_adapter *) devid;
2883 unsigned long processor_flag;
2884 /*
2885 Acquire exclusive access to Host Adapter.
2886 */
2887 spin_lock_irqsave(adapter->scsi_host->host_lock, processor_flag);
2888 /*
2889 Handle Interrupts appropriately for each Host Adapter type.
2890 */
2891 if (blogic_multimaster_type(adapter)) {
2892 union blogic_int_reg intreg;
2893 /*
2894 Read the Host Adapter Interrupt Register.
2895 */
2896 intreg.all = blogic_rdint(adapter);
2897 if (intreg.ir.int_valid) {
2898 /*
2899 Acknowledge the interrupt and reset the Host Adapter
2900 Interrupt Register.
2901 */
2902 blogic_intreset(adapter);
2903 /*
2904 Process valid External SCSI Bus Reset and Incoming
2905 Mailbox Loaded Interrupts. Command Complete
2906 Interrupts are noted, and Outgoing Mailbox Available
2907 Interrupts are ignored, as they are never enabled.
2908 */
2909 if (intreg.ir.ext_busreset)
2910 adapter->adapter_extreset = true;
2911 else if (intreg.ir.mailin_loaded)
2912 blogic_scan_inbox(adapter);
2913 else if (intreg.ir.cmd_complete)
2914 adapter->adapter_cmd_complete = true;
2915 }
2916 } else {
2917 /*
2918 Check if there is a pending interrupt for this Host Adapter.
2919 */
2920 if (FlashPoint_InterruptPending(adapter->cardhandle))
2921 switch (FlashPoint_HandleInterrupt(adapter->cardhandle)) {
2922 case FPOINT_NORMAL_INT:
2923 break;
2924 case FPOINT_EXT_RESET:
2925 adapter->adapter_extreset = true;
2926 break;
2927 case FPOINT_INTERN_ERR:
2928 blogic_warn("Internal FlashPoint Error detected - Resetting Host Adapter\n", adapter);
2929 adapter->adapter_intern_err = true;
2930 break;
2931 }
2932 }
2933 /*
2934 Process any completed CCBs.
2935 */
2936 if (adapter->firstccb != NULL)
2937 blogic_process_ccbs(adapter);
2938 /*
2939 Reset the Host Adapter if requested.
2940 */
2941 if (adapter->adapter_extreset) {
2942 blogic_warn("Resetting %s due to External SCSI Bus Reset\n", adapter, adapter->full_model);
2943 blogic_inc_count(&adapter->ext_resets);
2944 blogic_resetadapter(adapter, false);
2945 adapter->adapter_extreset = false;
2946 } else if (adapter->adapter_intern_err) {
2947 blogic_warn("Resetting %s due to Host Adapter Internal Error\n", adapter, adapter->full_model);
2948 blogic_inc_count(&adapter->adapter_intern_errors);
2949 blogic_resetadapter(adapter, true);
2950 adapter->adapter_intern_err = false;
2951 }
2952 /*
2953 Release exclusive access to Host Adapter.
2954 */
2955 spin_unlock_irqrestore(adapter->scsi_host->host_lock, processor_flag);
2956 return IRQ_HANDLED;
2957}
2958
2959
2960/*
2961 blogic_write_outbox places CCB and Action Code into an Outgoing
2962 Mailbox for execution by Host Adapter. The Host Adapter's Lock should
2963 already have been acquired by the caller.
2964*/
2965
2966static bool blogic_write_outbox(struct blogic_adapter *adapter,
2967 enum blogic_action action, struct blogic_ccb *ccb)
2968{
2969 struct blogic_outbox *next_outbox;
2970
2971 next_outbox = adapter->next_outbox;
2972 if (next_outbox->action == BLOGIC_OUTBOX_FREE) {
2973 ccb->status = BLOGIC_CCB_ACTIVE;
2974 /*
2975 The CCB field must be written before the Action Code field
2976 since the Host Adapter is operating asynchronously and the
2977 locking code does not protect against simultaneous access
2978 by the Host Adapter.
2979 */
2980 next_outbox->ccb = ccb->dma_handle;
2981 next_outbox->action = action;
2982 blogic_execmbox(adapter);
2983 if (++next_outbox > adapter->last_outbox)
2984 next_outbox = adapter->first_outbox;
2985 adapter->next_outbox = next_outbox;
2986 if (action == BLOGIC_MBOX_START) {
2987 adapter->active_cmds[ccb->tgt_id]++;
2988 if (ccb->opcode != BLOGIC_BDR)
2989 adapter->tgt_stats[ccb->tgt_id].cmds_tried++;
2990 }
2991 return true;
2992 }
2993 return false;
2994}
2995
2996/* Error Handling (EH) support */
2997
2998static int blogic_hostreset(struct scsi_cmnd *SCpnt)
2999{
3000 struct blogic_adapter *adapter =
3001 (struct blogic_adapter *) SCpnt->device->host->hostdata;
3002
3003 unsigned int id = SCpnt->device->id;
3004 struct blogic_tgt_stats *stats = &adapter->tgt_stats[id];
3005 int rc;
3006
3007 spin_lock_irq(SCpnt->device->host->host_lock);
3008
3009 blogic_inc_count(&stats->adapter_reset_req);
3010
3011 rc = blogic_resetadapter(adapter, false);
3012 spin_unlock_irq(SCpnt->device->host->host_lock);
3013 return rc;
3014}
3015
3016/*
3017 blogic_qcmd creates a CCB for Command and places it into an
3018 Outgoing Mailbox for execution by the associated Host Adapter.
3019*/
3020
3021static int blogic_qcmd_lck(struct scsi_cmnd *command,
3022 void (*comp_cb) (struct scsi_cmnd *))
3023{
3024 struct blogic_adapter *adapter =
3025 (struct blogic_adapter *) command->device->host->hostdata;
3026 struct blogic_tgt_flags *tgt_flags =
3027 &adapter->tgt_flags[command->device->id];
3028 struct blogic_tgt_stats *tgt_stats = adapter->tgt_stats;
3029 unsigned char *cdb = command->cmnd;
3030 int cdblen = command->cmd_len;
3031 int tgt_id = command->device->id;
3032 int lun = command->device->lun;
3033 int buflen = scsi_bufflen(command);
3034 int count;
3035 struct blogic_ccb *ccb;
3036 dma_addr_t sense_buf;
3037
3038 /*
3039 SCSI REQUEST_SENSE commands will be executed automatically by the
3040 Host Adapter for any errors, so they should not be executed
3041 explicitly unless the Sense Data is zero indicating that no error
3042 occurred.
3043 */
3044 if (cdb[0] == REQUEST_SENSE && command->sense_buffer[0] != 0) {
3045 command->result = DID_OK << 16;
3046 comp_cb(command);
3047 return 0;
3048 }
3049 /*
3050 Allocate a CCB from the Host Adapter's free list. In the unlikely
3051 event that there are none available and memory allocation fails,
3052 wait 1 second and try again. If that fails, the Host Adapter is
3053 probably hung so signal an error as a Host Adapter Hard Reset
3054 should be initiated soon.
3055 */
3056 ccb = blogic_alloc_ccb(adapter);
3057 if (ccb == NULL) {
3058 spin_unlock_irq(adapter->scsi_host->host_lock);
3059 blogic_delay(1);
3060 spin_lock_irq(adapter->scsi_host->host_lock);
3061 ccb = blogic_alloc_ccb(adapter);
3062 if (ccb == NULL) {
3063 command->result = DID_ERROR << 16;
3064 comp_cb(command);
3065 return 0;
3066 }
3067 }
3068
3069 /*
3070 Initialize the fields in the BusLogic Command Control Block (CCB).
3071 */
3072 count = scsi_dma_map(command);
3073 BUG_ON(count < 0);
3074 if (count) {
3075 struct scatterlist *sg;
3076 int i;
3077
3078 ccb->opcode = BLOGIC_INITIATOR_CCB_SG;
3079 ccb->datalen = count * sizeof(struct blogic_sg_seg);
3080 if (blogic_multimaster_type(adapter))
3081 ccb->data = (void *)((unsigned int) ccb->dma_handle +
3082 ((unsigned long) &ccb->sglist -
3083 (unsigned long) ccb));
3084 else
3085 ccb->data = ccb->sglist;
3086
3087 scsi_for_each_sg(command, sg, count, i) {
3088 ccb->sglist[i].segbytes = sg_dma_len(sg);
3089 ccb->sglist[i].segdata = sg_dma_address(sg);
3090 }
3091 } else if (!count) {
3092 ccb->opcode = BLOGIC_INITIATOR_CCB;
3093 ccb->datalen = buflen;
3094 ccb->data = 0;
3095 }
3096
3097 switch (cdb[0]) {
3098 case READ_6:
3099 case READ_10:
3100 ccb->datadir = BLOGIC_DATAIN_CHECKED;
3101 tgt_stats[tgt_id].read_cmds++;
3102 blogic_addcount(&tgt_stats[tgt_id].bytesread, buflen);
3103 blogic_incszbucket(tgt_stats[tgt_id].read_sz_buckets, buflen);
3104 break;
3105 case WRITE_6:
3106 case WRITE_10:
3107 ccb->datadir = BLOGIC_DATAOUT_CHECKED;
3108 tgt_stats[tgt_id].write_cmds++;
3109 blogic_addcount(&tgt_stats[tgt_id].byteswritten, buflen);
3110 blogic_incszbucket(tgt_stats[tgt_id].write_sz_buckets, buflen);
3111 break;
3112 default:
3113 ccb->datadir = BLOGIC_UNCHECKED_TX;
3114 break;
3115 }
3116 ccb->cdblen = cdblen;
3117 ccb->adapter_status = 0;
3118 ccb->tgt_status = 0;
3119 ccb->tgt_id = tgt_id;
3120 ccb->lun = lun;
3121 ccb->tag_enable = false;
3122 ccb->legacytag_enable = false;
3123 /*
3124 BusLogic recommends that after a Reset the first couple of
3125 commands that are sent to a Target Device be sent in a non
3126 Tagged Queue fashion so that the Host Adapter and Target Device
3127 can establish Synchronous and Wide Transfer before Queue Tag
3128 messages can interfere with the Synchronous and Wide Negotiation
3129 messages. By waiting to enable Tagged Queuing until after the
3130 first BLOGIC_MAX_TAG_DEPTH commands have been queued, it is
3131 assured that after a Reset any pending commands are requeued
3132 before Tagged Queuing is enabled and that the Tagged Queuing
3133 message will not occur while the partition table is being printed.
3134 In addition, some devices do not properly handle the transition
3135 from non-tagged to tagged commands, so it is necessary to wait
3136 until there are no pending commands for a target device
3137 before queuing tagged commands.
3138 */
3139 if (adapter->cmds_since_rst[tgt_id]++ >= BLOGIC_MAX_TAG_DEPTH &&
3140 !tgt_flags->tagq_active &&
3141 adapter->active_cmds[tgt_id] == 0
3142 && tgt_flags->tagq_ok &&
3143 (adapter->tagq_ok & (1 << tgt_id))) {
3144 tgt_flags->tagq_active = true;
3145 blogic_notice("Tagged Queuing now active for Target %d\n",
3146 adapter, tgt_id);
3147 }
3148 if (tgt_flags->tagq_active) {
3149 enum blogic_queuetag queuetag = BLOGIC_SIMPLETAG;
3150 /*
3151 When using Tagged Queuing with Simple Queue Tags, it
3152 appears that disk drive controllers do not guarantee that
3153 a queued command will not remain in a disconnected state
3154 indefinitely if commands that read or write nearer the
3155 head position continue to arrive without interruption.
3156 Therefore, for each Target Device this driver keeps track
3157 of the last time either the queue was empty or an Ordered
3158 Queue Tag was issued. If more than 4 seconds (one fifth
3159 of the 20 second disk timeout) have elapsed since this
3160 last sequence point, this command will be issued with an
3161 Ordered Queue Tag rather than a Simple Queue Tag, which
3162 forces the Target Device to complete all previously
3163 queued commands before this command may be executed.
3164 */
3165 if (adapter->active_cmds[tgt_id] == 0)
3166 adapter->last_seqpoint[tgt_id] = jiffies;
3167 else if (time_after(jiffies,
3168 adapter->last_seqpoint[tgt_id] + 4 * HZ)) {
3169 adapter->last_seqpoint[tgt_id] = jiffies;
3170 queuetag = BLOGIC_ORDEREDTAG;
3171 }
3172 if (adapter->ext_lun) {
3173 ccb->tag_enable = true;
3174 ccb->queuetag = queuetag;
3175 } else {
3176 ccb->legacytag_enable = true;
3177 ccb->legacy_tag = queuetag;
3178 }
3179 }
3180 memcpy(ccb->cdb, cdb, cdblen);
3181 ccb->sense_datalen = SCSI_SENSE_BUFFERSIZE;
3182 ccb->command = command;
3183 sense_buf = dma_map_single(&adapter->pci_device->dev,
3184 command->sense_buffer, ccb->sense_datalen,
3185 DMA_FROM_DEVICE);
3186 if (dma_mapping_error(&adapter->pci_device->dev, sense_buf)) {
3187 blogic_err("DMA mapping for sense data buffer failed\n",
3188 adapter);
3189 blogic_dealloc_ccb(ccb, 0);
3190 return SCSI_MLQUEUE_HOST_BUSY;
3191 }
3192 ccb->sensedata = sense_buf;
3193 command->scsi_done = comp_cb;
3194 if (blogic_multimaster_type(adapter)) {
3195 /*
3196 Place the CCB in an Outgoing Mailbox. The higher levels
3197 of the SCSI Subsystem should not attempt to queue more
3198 commands than can be placed in Outgoing Mailboxes, so
3199 there should always be one free. In the unlikely event
3200 that there are none available, wait 1 second and try
3201 again. If that fails, the Host Adapter is probably hung
3202 so signal an error as a Host Adapter Hard Reset should
3203 be initiated soon.
3204 */
3205 if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, ccb)) {
3206 spin_unlock_irq(adapter->scsi_host->host_lock);
3207 blogic_warn("Unable to write Outgoing Mailbox - Pausing for 1 second\n", adapter);
3208 blogic_delay(1);
3209 spin_lock_irq(adapter->scsi_host->host_lock);
3210 if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START,
3211 ccb)) {
3212 blogic_warn("Still unable to write Outgoing Mailbox - Host Adapter Dead?\n", adapter);
3213 blogic_dealloc_ccb(ccb, 1);
3214 command->result = DID_ERROR << 16;
3215 command->scsi_done(command);
3216 }
3217 }
3218 } else {
3219 /*
3220 Call the FlashPoint SCCB Manager to start execution of
3221 the CCB.
3222 */
3223 ccb->status = BLOGIC_CCB_ACTIVE;
3224 adapter->active_cmds[tgt_id]++;
3225 tgt_stats[tgt_id].cmds_tried++;
3226 FlashPoint_StartCCB(adapter->cardhandle, ccb);
3227 /*
3228 The Command may have already completed and
3229 blogic_qcompleted_ccb been called, or it may still be
3230 pending.
3231 */
3232 if (ccb->status == BLOGIC_CCB_COMPLETE)
3233 blogic_process_ccbs(adapter);
3234 }
3235 return 0;
3236}
3237
3238static DEF_SCSI_QCMD(blogic_qcmd)
3239
3240#if 0
3241/*
3242 blogic_abort aborts Command if possible.
3243*/
3244
3245static int blogic_abort(struct scsi_cmnd *command)
3246{
3247 struct blogic_adapter *adapter =
3248 (struct blogic_adapter *) command->device->host->hostdata;
3249
3250 int tgt_id = command->device->id;
3251 struct blogic_ccb *ccb;
3252 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_request);
3253
3254 /*
3255 Attempt to find an Active CCB for this Command. If no Active
3256 CCB for this Command is found, then no Abort is necessary.
3257 */
3258 for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
3259 if (ccb->command == command)
3260 break;
3261 if (ccb == NULL) {
3262 blogic_warn("Unable to Abort Command to Target %d - No CCB Found\n", adapter, tgt_id);
3263 return SUCCESS;
3264 } else if (ccb->status == BLOGIC_CCB_COMPLETE) {
3265 blogic_warn("Unable to Abort Command to Target %d - CCB Completed\n", adapter, tgt_id);
3266 return SUCCESS;
3267 } else if (ccb->status == BLOGIC_CCB_RESET) {
3268 blogic_warn("Unable to Abort Command to Target %d - CCB Reset\n", adapter, tgt_id);
3269 return SUCCESS;
3270 }
3271 if (blogic_multimaster_type(adapter)) {
3272 /*
3273 Attempt to Abort this CCB. MultiMaster Firmware versions
3274 prior to 5.xx do not generate Abort Tag messages, but only
3275 generate the non-tagged Abort message. Since non-tagged
3276 commands are not sent by the Host Adapter until the queue
3277 of outstanding tagged commands has completed, and the
3278 Abort message is treated as a non-tagged command, it is
3279 effectively impossible to abort commands when Tagged
3280 Queuing is active. Firmware version 5.xx does generate
3281 Abort Tag messages, so it is possible to abort commands
3282 when Tagged Queuing is active.
3283 */
3284 if (adapter->tgt_flags[tgt_id].tagq_active &&
3285 adapter->fw_ver[0] < '5') {
3286 blogic_warn("Unable to Abort CCB #%ld to Target %d - Abort Tag Not Supported\n", adapter, ccb->serial, tgt_id);
3287 return FAILURE;
3288 } else if (blogic_write_outbox(adapter, BLOGIC_MBOX_ABORT,
3289 ccb)) {
3290 blogic_warn("Aborting CCB #%ld to Target %d\n",
3291 adapter, ccb->serial, tgt_id);
3292 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
3293 return SUCCESS;
3294 } else {
3295 blogic_warn("Unable to Abort CCB #%ld to Target %d - No Outgoing Mailboxes\n", adapter, ccb->serial, tgt_id);
3296 return FAILURE;
3297 }
3298 } else {
3299 /*
3300 Call the FlashPoint SCCB Manager to abort execution of
3301 the CCB.
3302 */
3303 blogic_warn("Aborting CCB #%ld to Target %d\n", adapter,
3304 ccb->serial, tgt_id);
3305 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
3306 FlashPoint_AbortCCB(adapter->cardhandle, ccb);
3307 /*
3308 The Abort may have already been completed and
3309 blogic_qcompleted_ccb been called, or it
3310 may still be pending.
3311 */
3312 if (ccb->status == BLOGIC_CCB_COMPLETE)
3313 blogic_process_ccbs(adapter);
3314 return SUCCESS;
3315 }
3316 return SUCCESS;
3317}
3318
3319#endif
3320/*
3321 blogic_resetadapter resets Host Adapter if possible, marking all
3322 currently executing SCSI Commands as having been Reset.
3323*/
3324
3325static int blogic_resetadapter(struct blogic_adapter *adapter, bool hard_reset)
3326{
3327 struct blogic_ccb *ccb;
3328 int tgt_id;
3329
3330 /*
3331 * Attempt to Reset and Reinitialize the Host Adapter.
3332 */
3333
3334 if (!(blogic_hwreset(adapter, hard_reset) &&
3335 blogic_initadapter(adapter))) {
3336 blogic_err("Resetting %s Failed\n", adapter,
3337 adapter->full_model);
3338 return FAILURE;
3339 }
3340
3341 /*
3342 * Deallocate all currently executing CCBs.
3343 */
3344
3345 for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
3346 if (ccb->status == BLOGIC_CCB_ACTIVE)
3347 blogic_dealloc_ccb(ccb, 1);
3348 /*
3349 * Wait a few seconds between the Host Adapter Hard Reset which
3350 * initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
3351 * SCSI devices get confused if they receive SCSI Commands too soon
3352 * after a SCSI Bus Reset.
3353 */
3354
3355 if (hard_reset) {
3356 spin_unlock_irq(adapter->scsi_host->host_lock);
3357 blogic_delay(adapter->bus_settle_time);
3358 spin_lock_irq(adapter->scsi_host->host_lock);
3359 }
3360
3361 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
3362 adapter->last_resettried[tgt_id] = jiffies;
3363 adapter->last_resetdone[tgt_id] = jiffies;
3364 }
3365 return SUCCESS;
3366}
3367
3368/*
3369 blogic_diskparam returns the Heads/Sectors/Cylinders BIOS Disk
3370 Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and
3371 the appropriate number of cylinders so as not to exceed drive capacity. In
3372 order for disks equal to or larger than 1 GB to be addressable by the BIOS
3373 without exceeding the BIOS limitation of 1024 cylinders, Extended Translation
3374 may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C"
3375 series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A"
3376 series MultiMaster Host Adapters. With Extended Translation enabled, drives
3377 between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128
3378 heads and 32 sectors, and drives above 2 GB inclusive are given a disk
3379 geometry of 255 heads and 63 sectors. However, if the BIOS detects that the
3380 Extended Translation setting does not match the geometry in the partition
3381 table, then the translation inferred from the partition table will be used by
3382 the BIOS, and a warning may be displayed.
3383*/
3384
3385static int blogic_diskparam(struct scsi_device *sdev, struct block_device *dev,
3386 sector_t capacity, int *params)
3387{
3388 struct blogic_adapter *adapter =
3389 (struct blogic_adapter *) sdev->host->hostdata;
3390 struct bios_diskparam *diskparam = (struct bios_diskparam *) params;
3391 unsigned char *buf;
3392
3393 if (adapter->ext_trans_enable && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */) {
3394 if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */) {
3395 diskparam->heads = 255;
3396 diskparam->sectors = 63;
3397 } else {
3398 diskparam->heads = 128;
3399 diskparam->sectors = 32;
3400 }
3401 } else {
3402 diskparam->heads = 64;
3403 diskparam->sectors = 32;
3404 }
3405 diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
3406 buf = scsi_bios_ptable(dev);
3407 if (buf == NULL)
3408 return 0;
3409 /*
3410 If the boot sector partition table flag is valid, search for
3411 a partition table entry whose end_head matches one of the
3412 standard BusLogic geometry translations (64/32, 128/32, or 255/63).
3413 */
3414 if (*(unsigned short *) (buf + 64) == MSDOS_LABEL_MAGIC) {
3415 struct msdos_partition *part1_entry =
3416 (struct msdos_partition *)buf;
3417 struct msdos_partition *part_entry = part1_entry;
3418 int saved_cyl = diskparam->cylinders, part_no;
3419 unsigned char part_end_head = 0, part_end_sector = 0;
3420
3421 for (part_no = 0; part_no < 4; part_no++) {
3422 part_end_head = part_entry->end_head;
3423 part_end_sector = part_entry->end_sector & 0x3F;
3424 if (part_end_head == 64 - 1) {
3425 diskparam->heads = 64;
3426 diskparam->sectors = 32;
3427 break;
3428 } else if (part_end_head == 128 - 1) {
3429 diskparam->heads = 128;
3430 diskparam->sectors = 32;
3431 break;
3432 } else if (part_end_head == 255 - 1) {
3433 diskparam->heads = 255;
3434 diskparam->sectors = 63;
3435 break;
3436 }
3437 part_entry++;
3438 }
3439 if (part_no == 4) {
3440 part_end_head = part1_entry->end_head;
3441 part_end_sector = part1_entry->end_sector & 0x3F;
3442 }
3443 diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
3444 if (part_no < 4 && part_end_sector == diskparam->sectors) {
3445 if (diskparam->cylinders != saved_cyl)
3446 blogic_warn("Adopting Geometry %d/%d from Partition Table\n", adapter, diskparam->heads, diskparam->sectors);
3447 } else if (part_end_head > 0 || part_end_sector > 0) {
3448 blogic_warn("Warning: Partition Table appears to have Geometry %d/%d which is\n", adapter, part_end_head + 1, part_end_sector);
3449 blogic_warn("not compatible with current BusLogic Host Adapter Geometry %d/%d\n", adapter, diskparam->heads, diskparam->sectors);
3450 }
3451 }
3452 kfree(buf);
3453 return 0;
3454}
3455
3456
3457/*
3458 BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>.
3459*/
3460
3461static int blogic_write_info(struct Scsi_Host *shost, char *procbuf,
3462 int bytes_avail)
3463{
3464 struct blogic_adapter *adapter =
3465 (struct blogic_adapter *) shost->hostdata;
3466 struct blogic_tgt_stats *tgt_stats;
3467
3468 tgt_stats = adapter->tgt_stats;
3469 adapter->ext_resets = 0;
3470 adapter->adapter_intern_errors = 0;
3471 memset(tgt_stats, 0, BLOGIC_MAXDEV * sizeof(struct blogic_tgt_stats));
3472 return 0;
3473}
3474
3475static int blogic_show_info(struct seq_file *m, struct Scsi_Host *shost)
3476{
3477 struct blogic_adapter *adapter = (struct blogic_adapter *) shost->hostdata;
3478 struct blogic_tgt_stats *tgt_stats;
3479 int tgt;
3480
3481 tgt_stats = adapter->tgt_stats;
3482 seq_write(m, adapter->msgbuf, adapter->msgbuflen);
3483 seq_printf(m, "\n\
3484Current Driver Queue Depth: %d\n\
3485Currently Allocated CCBs: %d\n", adapter->drvr_qdepth, adapter->alloc_ccbs);
3486 seq_puts(m, "\n\n\
3487 DATA TRANSFER STATISTICS\n\
3488\n\
3489Target Tagged Queuing Queue Depth Active Attempted Completed\n\
3490====== ============== =========== ====== ========= =========\n");
3491 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3492 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3493 if (!tgt_flags->tgt_exists)
3494 continue;
3495 seq_printf(m, " %2d %s", tgt, (tgt_flags->tagq_ok ? (tgt_flags->tagq_active ? " Active" : (adapter->tagq_ok & (1 << tgt)
3496 ? " Permitted" : " Disabled"))
3497 : "Not Supported"));
3498 seq_printf(m,
3499 " %3d %3u %9u %9u\n", adapter->qdepth[tgt], adapter->active_cmds[tgt], tgt_stats[tgt].cmds_tried, tgt_stats[tgt].cmds_complete);
3500 }
3501 seq_puts(m, "\n\
3502Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\
3503====== ============= ============== =================== ===================\n");
3504 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3505 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3506 if (!tgt_flags->tgt_exists)
3507 continue;
3508 seq_printf(m, " %2d %9u %9u", tgt, tgt_stats[tgt].read_cmds, tgt_stats[tgt].write_cmds);
3509 if (tgt_stats[tgt].bytesread.billions > 0)
3510 seq_printf(m, " %9u%09u", tgt_stats[tgt].bytesread.billions, tgt_stats[tgt].bytesread.units);
3511 else
3512 seq_printf(m, " %9u", tgt_stats[tgt].bytesread.units);
3513 if (tgt_stats[tgt].byteswritten.billions > 0)
3514 seq_printf(m, " %9u%09u\n", tgt_stats[tgt].byteswritten.billions, tgt_stats[tgt].byteswritten.units);
3515 else
3516 seq_printf(m, " %9u\n", tgt_stats[tgt].byteswritten.units);
3517 }
3518 seq_puts(m, "\n\
3519Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\
3520====== ======= ========= ========= ========= ========= =========\n");
3521 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3522 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3523 if (!tgt_flags->tgt_exists)
3524 continue;
3525 seq_printf(m,
3526 " %2d Read %9u %9u %9u %9u %9u\n", tgt,
3527 tgt_stats[tgt].read_sz_buckets[0],
3528 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]);
3529 seq_printf(m,
3530 " %2d Write %9u %9u %9u %9u %9u\n", tgt,
3531 tgt_stats[tgt].write_sz_buckets[0],
3532 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]);
3533 }
3534 seq_puts(m, "\n\
3535Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\
3536====== ======= ========= ========= ========= ========= =========\n");
3537 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3538 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3539 if (!tgt_flags->tgt_exists)
3540 continue;
3541 seq_printf(m,
3542 " %2d Read %9u %9u %9u %9u %9u\n", tgt,
3543 tgt_stats[tgt].read_sz_buckets[5],
3544 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]);
3545 seq_printf(m,
3546 " %2d Write %9u %9u %9u %9u %9u\n", tgt,
3547 tgt_stats[tgt].write_sz_buckets[5],
3548 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]);
3549 }
3550 seq_puts(m, "\n\n\
3551 ERROR RECOVERY STATISTICS\n\
3552\n\
3553 Command Aborts Bus Device Resets Host Adapter Resets\n\
3554Target Requested Completed Requested Completed Requested Completed\n\
3555 ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\
3556====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n");
3557 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3558 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3559 if (!tgt_flags->tgt_exists)
3560 continue;
3561 seq_printf(m, " %2d %5d %5d %5d %5d %5d %5d %5d %5d %5d\n",
3562 tgt, tgt_stats[tgt].aborts_request,
3563 tgt_stats[tgt].aborts_tried,
3564 tgt_stats[tgt].aborts_done,
3565 tgt_stats[tgt].bdr_request,
3566 tgt_stats[tgt].bdr_tried,
3567 tgt_stats[tgt].bdr_done,
3568 tgt_stats[tgt].adapter_reset_req,
3569 tgt_stats[tgt].adapter_reset_attempt,
3570 tgt_stats[tgt].adapter_reset_done);
3571 }
3572 seq_printf(m, "\nExternal Host Adapter Resets: %d\n", adapter->ext_resets);
3573 seq_printf(m, "Host Adapter Internal Errors: %d\n", adapter->adapter_intern_errors);
3574 return 0;
3575}
3576
3577
3578/*
3579 blogic_msg prints Driver Messages.
3580*/
3581
3582static void blogic_msg(enum blogic_msglevel msglevel, char *fmt,
3583 struct blogic_adapter *adapter, ...)
3584{
3585 static char buf[BLOGIC_LINEBUF_SIZE];
3586 static bool begin = true;
3587 va_list args;
3588 int len = 0;
3589
3590 va_start(args, adapter);
3591 len = vsprintf(buf, fmt, args);
3592 va_end(args);
3593 if (msglevel == BLOGIC_ANNOUNCE_LEVEL) {
3594 static int msglines = 0;
3595 strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
3596 adapter->msgbuflen += len;
3597 if (++msglines <= 2)
3598 printk("%sscsi: %s", blogic_msglevelmap[msglevel], buf);
3599 } else if (msglevel == BLOGIC_INFO_LEVEL) {
3600 strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
3601 adapter->msgbuflen += len;
3602 if (begin) {
3603 if (buf[0] != '\n' || len > 1)
3604 printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
3605 } else
3606 printk("%s", buf);
3607 } else {
3608 if (begin) {
3609 if (adapter != NULL && adapter->adapter_initd)
3610 printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
3611 else
3612 printk("%s%s", blogic_msglevelmap[msglevel], buf);
3613 } else
3614 printk("%s", buf);
3615 }
3616 begin = (buf[len - 1] == '\n');
3617}
3618
3619
3620/*
3621 blogic_parse parses an individual option keyword. It returns true
3622 and updates the pointer if the keyword is recognized and false otherwise.
3623*/
3624
3625static bool __init blogic_parse(char **str, char *keyword)
3626{
3627 char *pointer = *str;
3628 while (*keyword != '\0') {
3629 char strch = *pointer++;
3630 char keywordch = *keyword++;
3631 if (strch >= 'A' && strch <= 'Z')
3632 strch += 'a' - 'Z';
3633 if (keywordch >= 'A' && keywordch <= 'Z')
3634 keywordch += 'a' - 'Z';
3635 if (strch != keywordch)
3636 return false;
3637 }
3638 *str = pointer;
3639 return true;
3640}
3641
3642
3643/*
3644 blogic_parseopts handles processing of BusLogic Driver Options
3645 specifications.
3646
3647 BusLogic Driver Options may be specified either via the Linux Kernel Command
3648 Line or via the Loadable Kernel Module Installation Facility. Driver Options
3649 for multiple host adapters may be specified either by separating the option
3650 strings by a semicolon, or by specifying multiple "BusLogic=" strings on the
3651 command line. Individual option specifications for a single host adapter are
3652 separated by commas. The Probing and Debugging Options apply to all host
3653 adapters whereas the remaining options apply individually only to the
3654 selected host adapter.
3655
3656 The BusLogic Driver Probing Options are described in
3657 <file:Documentation/scsi/BusLogic.rst>.
3658*/
3659
3660static int __init blogic_parseopts(char *options)
3661{
3662 while (true) {
3663 struct blogic_drvr_options *drvr_opts =
3664 &blogic_drvr_options[blogic_drvr_options_count++];
3665 int tgt_id;
3666
3667 memset(drvr_opts, 0, sizeof(struct blogic_drvr_options));
3668 while (*options != '\0' && *options != ';') {
3669 /* Probing Options. */
3670 if (blogic_parse(&options, "IO:")) {
3671 unsigned long io_addr = simple_strtoul(options,
3672 &options, 0);
3673 blogic_probe_options.limited_isa = true;
3674 switch (io_addr) {
3675 case 0x330:
3676 blogic_probe_options.probe330 = true;
3677 break;
3678 case 0x334:
3679 blogic_probe_options.probe334 = true;
3680 break;
3681 case 0x230:
3682 blogic_probe_options.probe230 = true;
3683 break;
3684 case 0x234:
3685 blogic_probe_options.probe234 = true;
3686 break;
3687 case 0x130:
3688 blogic_probe_options.probe130 = true;
3689 break;
3690 case 0x134:
3691 blogic_probe_options.probe134 = true;
3692 break;
3693 default:
3694 blogic_err("BusLogic: Invalid Driver Options (invalid I/O Address 0x%lX)\n", NULL, io_addr);
3695 return 0;
3696 }
3697 } else if (blogic_parse(&options, "NoProbeISA"))
3698 blogic_probe_options.noprobe_isa = true;
3699 else if (blogic_parse(&options, "NoProbePCI"))
3700 blogic_probe_options.noprobe_pci = true;
3701 else if (blogic_parse(&options, "NoProbe"))
3702 blogic_probe_options.noprobe = true;
3703 else if (blogic_parse(&options, "NoSortPCI"))
3704 blogic_probe_options.nosort_pci = true;
3705 else if (blogic_parse(&options, "MultiMasterFirst"))
3706 blogic_probe_options.multimaster_first = true;
3707 else if (blogic_parse(&options, "FlashPointFirst"))
3708 blogic_probe_options.flashpoint_first = true;
3709 /* Tagged Queuing Options. */
3710 else if (blogic_parse(&options, "QueueDepth:[") ||
3711 blogic_parse(&options, "QD:[")) {
3712 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
3713 unsigned short qdepth = simple_strtoul(options, &options, 0);
3714 if (qdepth > BLOGIC_MAX_TAG_DEPTH) {
3715 blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth);
3716 return 0;
3717 }
3718 drvr_opts->qdepth[tgt_id] = qdepth;
3719 if (*options == ',')
3720 options++;
3721 else if (*options == ']')
3722 break;
3723 else {
3724 blogic_err("BusLogic: Invalid Driver Options (',' or ']' expected at '%s')\n", NULL, options);
3725 return 0;
3726 }
3727 }
3728 if (*options != ']') {
3729 blogic_err("BusLogic: Invalid Driver Options (']' expected at '%s')\n", NULL, options);
3730 return 0;
3731 } else
3732 options++;
3733 } else if (blogic_parse(&options, "QueueDepth:") || blogic_parse(&options, "QD:")) {
3734 unsigned short qdepth = simple_strtoul(options, &options, 0);
3735 if (qdepth == 0 ||
3736 qdepth > BLOGIC_MAX_TAG_DEPTH) {
3737 blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth);
3738 return 0;
3739 }
3740 drvr_opts->common_qdepth = qdepth;
3741 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
3742 drvr_opts->qdepth[tgt_id] = qdepth;
3743 } else if (blogic_parse(&options, "TaggedQueuing:") ||
3744 blogic_parse(&options, "TQ:")) {
3745 if (blogic_parse(&options, "Default")) {
3746 drvr_opts->tagq_ok = 0x0000;
3747 drvr_opts->tagq_ok_mask = 0x0000;
3748 } else if (blogic_parse(&options, "Enable")) {
3749 drvr_opts->tagq_ok = 0xFFFF;
3750 drvr_opts->tagq_ok_mask = 0xFFFF;
3751 } else if (blogic_parse(&options, "Disable")) {
3752 drvr_opts->tagq_ok = 0x0000;
3753 drvr_opts->tagq_ok_mask = 0xFFFF;
3754 } else {
3755 unsigned short tgt_bit;
3756 for (tgt_id = 0, tgt_bit = 1;
3757 tgt_id < BLOGIC_MAXDEV;
3758 tgt_id++, tgt_bit <<= 1)
3759 switch (*options++) {
3760 case 'Y':
3761 drvr_opts->tagq_ok |= tgt_bit;
3762 drvr_opts->tagq_ok_mask |= tgt_bit;
3763 break;
3764 case 'N':
3765 drvr_opts->tagq_ok &= ~tgt_bit;
3766 drvr_opts->tagq_ok_mask |= tgt_bit;
3767 break;
3768 case 'X':
3769 break;
3770 default:
3771 options--;
3772 tgt_id = BLOGIC_MAXDEV;
3773 break;
3774 }
3775 }
3776 }
3777 /* Miscellaneous Options. */
3778 else if (blogic_parse(&options, "BusSettleTime:") ||
3779 blogic_parse(&options, "BST:")) {
3780 unsigned short bus_settle_time =
3781 simple_strtoul(options, &options, 0);
3782 if (bus_settle_time > 5 * 60) {
3783 blogic_err("BusLogic: Invalid Driver Options (invalid Bus Settle Time %d)\n", NULL, bus_settle_time);
3784 return 0;
3785 }
3786 drvr_opts->bus_settle_time = bus_settle_time;
3787 } else if (blogic_parse(&options,
3788 "InhibitTargetInquiry"))
3789 drvr_opts->stop_tgt_inquiry = true;
3790 /* Debugging Options. */
3791 else if (blogic_parse(&options, "TraceProbe"))
3792 blogic_global_options.trace_probe = true;
3793 else if (blogic_parse(&options, "TraceHardwareReset"))
3794 blogic_global_options.trace_hw_reset = true;
3795 else if (blogic_parse(&options, "TraceConfiguration"))
3796 blogic_global_options.trace_config = true;
3797 else if (blogic_parse(&options, "TraceErrors"))
3798 blogic_global_options.trace_err = true;
3799 else if (blogic_parse(&options, "Debug")) {
3800 blogic_global_options.trace_probe = true;
3801 blogic_global_options.trace_hw_reset = true;
3802 blogic_global_options.trace_config = true;
3803 blogic_global_options.trace_err = true;
3804 }
3805 if (*options == ',')
3806 options++;
3807 else if (*options != ';' && *options != '\0') {
3808 blogic_err("BusLogic: Unexpected Driver Option '%s' ignored\n", NULL, options);
3809 *options = '\0';
3810 }
3811 }
3812 if (!(blogic_drvr_options_count == 0 ||
3813 blogic_probeinfo_count == 0 ||
3814 blogic_drvr_options_count == blogic_probeinfo_count)) {
3815 blogic_err("BusLogic: Invalid Driver Options (all or no I/O Addresses must be specified)\n", NULL);
3816 return 0;
3817 }
3818 /*
3819 Tagged Queuing is disabled when the Queue Depth is 1 since queuing
3820 multiple commands is not possible.
3821 */
3822 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
3823 if (drvr_opts->qdepth[tgt_id] == 1) {
3824 unsigned short tgt_bit = 1 << tgt_id;
3825 drvr_opts->tagq_ok &= ~tgt_bit;
3826 drvr_opts->tagq_ok_mask |= tgt_bit;
3827 }
3828 if (*options == ';')
3829 options++;
3830 if (*options == '\0')
3831 return 0;
3832 }
3833 return 1;
3834}
3835
3836/*
3837 Get it all started
3838*/
3839
3840static struct scsi_host_template blogic_template = {
3841 .module = THIS_MODULE,
3842 .proc_name = "BusLogic",
3843 .write_info = blogic_write_info,
3844 .show_info = blogic_show_info,
3845 .name = "BusLogic",
3846 .info = blogic_drvr_info,
3847 .queuecommand = blogic_qcmd,
3848 .slave_configure = blogic_slaveconfig,
3849 .bios_param = blogic_diskparam,
3850 .eh_host_reset_handler = blogic_hostreset,
3851#if 0
3852 .eh_abort_handler = blogic_abort,
3853#endif
3854 .unchecked_isa_dma = 1,
3855 .max_sectors = 128,
3856};
3857
3858/*
3859 blogic_setup handles processing of Kernel Command Line Arguments.
3860*/
3861
3862static int __init blogic_setup(char *str)
3863{
3864 int ints[3];
3865
3866 (void) get_options(str, ARRAY_SIZE(ints), ints);
3867
3868 if (ints[0] != 0) {
3869 blogic_err("BusLogic: Obsolete Command Line Entry Format Ignored\n", NULL);
3870 return 0;
3871 }
3872 if (str == NULL || *str == '\0')
3873 return 0;
3874 return blogic_parseopts(str);
3875}
3876
3877/*
3878 * Exit function. Deletes all hosts associated with this driver.
3879 */
3880
3881static void __exit blogic_exit(void)
3882{
3883 struct blogic_adapter *ha, *next;
3884
3885 list_for_each_entry_safe(ha, next, &blogic_host_list, host_list)
3886 blogic_deladapter(ha);
3887}
3888
3889__setup("BusLogic=", blogic_setup);
3890
3891#ifdef MODULE
3892/*static struct pci_device_id blogic_pci_tbl[] = {
3893 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
3894 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3895 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
3896 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3897 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
3898 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3899 { }
3900};*/
3901static const struct pci_device_id blogic_pci_tbl[] = {
3902 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER)},
3903 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC)},
3904 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT)},
3905 {0, },
3906};
3907#endif
3908MODULE_DEVICE_TABLE(pci, blogic_pci_tbl);
3909
3910module_init(blogic_init);
3911module_exit(blogic_exit);