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