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1
2/*
3
4 Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
5
6 Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
7
8 This program is free software; you may redistribute and/or modify it under
9 the terms of the GNU General Public License Version 2 as published by the
10 Free Software Foundation.
11
12 This program is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for complete details.
16
17 The author respectfully requests that any modifications to this software be
18 sent directly to him for evaluation and testing.
19
20 Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
21 advice has been invaluable, to David Gentzel, for writing the original Linux
22 BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
23
24 Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
25 Manager available as freely redistributable source code.
26
27*/
28
29#define BusLogic_DriverVersion "2.1.16"
30#define BusLogic_DriverDate "18 July 2002"
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#include <asm/system.h>
51
52#include <scsi/scsi.h>
53#include <scsi/scsi_cmnd.h>
54#include <scsi/scsi_device.h>
55#include <scsi/scsi_host.h>
56#include <scsi/scsi_tcq.h>
57#include "BusLogic.h"
58#include "FlashPoint.c"
59
60#ifndef FAILURE
61#define FAILURE (-1)
62#endif
63
64static struct scsi_host_template Bus_Logic_template;
65
66/*
67 BusLogic_DriverOptionsCount is a count of the number of BusLogic Driver
68 Options specifications provided via the Linux Kernel Command Line or via
69 the Loadable Kernel Module Installation Facility.
70*/
71
72static int BusLogic_DriverOptionsCount;
73
74
75/*
76 BusLogic_DriverOptions is an array of Driver Options structures representing
77 BusLogic Driver Options specifications provided via the Linux Kernel Command
78 Line or via the Loadable Kernel Module Installation Facility.
79*/
80
81static struct BusLogic_DriverOptions BusLogic_DriverOptions[BusLogic_MaxHostAdapters];
82
83
84/*
85 BusLogic can be assigned a string by insmod.
86*/
87
88MODULE_LICENSE("GPL");
89#ifdef MODULE
90static char *BusLogic;
91module_param(BusLogic, charp, 0);
92#endif
93
94
95/*
96 BusLogic_ProbeOptions is a set of Probe Options to be applied across
97 all BusLogic Host Adapters.
98*/
99
100static struct BusLogic_ProbeOptions BusLogic_ProbeOptions;
101
102
103/*
104 BusLogic_GlobalOptions is a set of Global Options to be applied across
105 all BusLogic Host Adapters.
106*/
107
108static struct BusLogic_GlobalOptions BusLogic_GlobalOptions;
109
110static LIST_HEAD(BusLogic_host_list);
111
112/*
113 BusLogic_ProbeInfoCount is the number of entries in BusLogic_ProbeInfoList.
114*/
115
116static int BusLogic_ProbeInfoCount;
117
118
119/*
120 BusLogic_ProbeInfoList is the list of I/O Addresses and Bus Probe Information
121 to be checked for potential BusLogic Host Adapters. It is initialized by
122 interrogating the PCI Configuration Space on PCI machines as well as from the
123 list of standard BusLogic I/O Addresses.
124*/
125
126static struct BusLogic_ProbeInfo *BusLogic_ProbeInfoList;
127
128
129/*
130 BusLogic_CommandFailureReason holds a string identifying the reason why a
131 call to BusLogic_Command failed. It is only non-NULL when BusLogic_Command
132 returns a failure code.
133*/
134
135static char *BusLogic_CommandFailureReason;
136
137/*
138 BusLogic_AnnounceDriver announces the Driver Version and Date, Author's
139 Name, Copyright Notice, and Electronic Mail Address.
140*/
141
142static void BusLogic_AnnounceDriver(struct BusLogic_HostAdapter *HostAdapter)
143{
144 BusLogic_Announce("***** BusLogic SCSI Driver Version " BusLogic_DriverVersion " of " BusLogic_DriverDate " *****\n", HostAdapter);
145 BusLogic_Announce("Copyright 1995-1998 by Leonard N. Zubkoff " "<lnz@dandelion.com>\n", HostAdapter);
146}
147
148
149/*
150 BusLogic_DriverInfo returns the Host Adapter Name to identify this SCSI
151 Driver and Host Adapter.
152*/
153
154static const char *BusLogic_DriverInfo(struct Scsi_Host *Host)
155{
156 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Host->hostdata;
157 return HostAdapter->FullModelName;
158}
159
160/*
161 BusLogic_InitializeCCBs initializes a group of Command Control Blocks (CCBs)
162 for Host Adapter from the BlockSize bytes located at BlockPointer. The newly
163 created CCBs are added to Host Adapter's free list.
164*/
165
166static void BusLogic_InitializeCCBs(struct BusLogic_HostAdapter *HostAdapter, void *BlockPointer, int BlockSize, dma_addr_t BlockPointerHandle)
167{
168 struct BusLogic_CCB *CCB = (struct BusLogic_CCB *) BlockPointer;
169 unsigned int offset = 0;
170 memset(BlockPointer, 0, BlockSize);
171 CCB->AllocationGroupHead = BlockPointerHandle;
172 CCB->AllocationGroupSize = BlockSize;
173 while ((BlockSize -= sizeof(struct BusLogic_CCB)) >= 0) {
174 CCB->Status = BusLogic_CCB_Free;
175 CCB->HostAdapter = HostAdapter;
176 CCB->DMA_Handle = (u32) BlockPointerHandle + offset;
177 if (BusLogic_FlashPointHostAdapterP(HostAdapter)) {
178 CCB->CallbackFunction = BusLogic_QueueCompletedCCB;
179 CCB->BaseAddress = HostAdapter->FlashPointInfo.BaseAddress;
180 }
181 CCB->Next = HostAdapter->Free_CCBs;
182 CCB->NextAll = HostAdapter->All_CCBs;
183 HostAdapter->Free_CCBs = CCB;
184 HostAdapter->All_CCBs = CCB;
185 HostAdapter->AllocatedCCBs++;
186 CCB++;
187 offset += sizeof(struct BusLogic_CCB);
188 }
189}
190
191
192/*
193 BusLogic_CreateInitialCCBs allocates the initial CCBs for Host Adapter.
194*/
195
196static bool __init BusLogic_CreateInitialCCBs(struct BusLogic_HostAdapter *HostAdapter)
197{
198 int BlockSize = BusLogic_CCB_AllocationGroupSize * sizeof(struct BusLogic_CCB);
199 void *BlockPointer;
200 dma_addr_t BlockPointerHandle;
201 while (HostAdapter->AllocatedCCBs < HostAdapter->InitialCCBs) {
202 BlockPointer = pci_alloc_consistent(HostAdapter->PCI_Device, BlockSize, &BlockPointerHandle);
203 if (BlockPointer == NULL) {
204 BusLogic_Error("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n", HostAdapter);
205 return false;
206 }
207 BusLogic_InitializeCCBs(HostAdapter, BlockPointer, BlockSize, BlockPointerHandle);
208 }
209 return true;
210}
211
212
213/*
214 BusLogic_DestroyCCBs deallocates the CCBs for Host Adapter.
215*/
216
217static void BusLogic_DestroyCCBs(struct BusLogic_HostAdapter *HostAdapter)
218{
219 struct BusLogic_CCB *NextCCB = HostAdapter->All_CCBs, *CCB, *Last_CCB = NULL;
220 HostAdapter->All_CCBs = NULL;
221 HostAdapter->Free_CCBs = NULL;
222 while ((CCB = NextCCB) != NULL) {
223 NextCCB = CCB->NextAll;
224 if (CCB->AllocationGroupHead) {
225 if (Last_CCB)
226 pci_free_consistent(HostAdapter->PCI_Device, Last_CCB->AllocationGroupSize, Last_CCB, Last_CCB->AllocationGroupHead);
227 Last_CCB = CCB;
228 }
229 }
230 if (Last_CCB)
231 pci_free_consistent(HostAdapter->PCI_Device, Last_CCB->AllocationGroupSize, Last_CCB, Last_CCB->AllocationGroupHead);
232}
233
234
235/*
236 BusLogic_CreateAdditionalCCBs allocates Additional CCBs for Host Adapter. If
237 allocation fails and there are no remaining CCBs available, the Driver Queue
238 Depth is decreased to a known safe value to avoid potential deadlocks when
239 multiple host adapters share the same IRQ Channel.
240*/
241
242static void BusLogic_CreateAdditionalCCBs(struct BusLogic_HostAdapter *HostAdapter, int AdditionalCCBs, bool SuccessMessageP)
243{
244 int BlockSize = BusLogic_CCB_AllocationGroupSize * sizeof(struct BusLogic_CCB);
245 int PreviouslyAllocated = HostAdapter->AllocatedCCBs;
246 void *BlockPointer;
247 dma_addr_t BlockPointerHandle;
248 if (AdditionalCCBs <= 0)
249 return;
250 while (HostAdapter->AllocatedCCBs - PreviouslyAllocated < AdditionalCCBs) {
251 BlockPointer = pci_alloc_consistent(HostAdapter->PCI_Device, BlockSize, &BlockPointerHandle);
252 if (BlockPointer == NULL)
253 break;
254 BusLogic_InitializeCCBs(HostAdapter, BlockPointer, BlockSize, BlockPointerHandle);
255 }
256 if (HostAdapter->AllocatedCCBs > PreviouslyAllocated) {
257 if (SuccessMessageP)
258 BusLogic_Notice("Allocated %d additional CCBs (total now %d)\n", HostAdapter, HostAdapter->AllocatedCCBs - PreviouslyAllocated, HostAdapter->AllocatedCCBs);
259 return;
260 }
261 BusLogic_Notice("Failed to allocate additional CCBs\n", HostAdapter);
262 if (HostAdapter->DriverQueueDepth > HostAdapter->AllocatedCCBs - HostAdapter->TargetDeviceCount) {
263 HostAdapter->DriverQueueDepth = HostAdapter->AllocatedCCBs - HostAdapter->TargetDeviceCount;
264 HostAdapter->SCSI_Host->can_queue = HostAdapter->DriverQueueDepth;
265 }
266}
267
268/*
269 BusLogic_AllocateCCB allocates a CCB from Host Adapter's free list,
270 allocating more memory from the Kernel if necessary. The Host Adapter's
271 Lock should already have been acquired by the caller.
272*/
273
274static struct BusLogic_CCB *BusLogic_AllocateCCB(struct BusLogic_HostAdapter
275 *HostAdapter)
276{
277 static unsigned long SerialNumber = 0;
278 struct BusLogic_CCB *CCB;
279 CCB = HostAdapter->Free_CCBs;
280 if (CCB != NULL) {
281 CCB->SerialNumber = ++SerialNumber;
282 HostAdapter->Free_CCBs = CCB->Next;
283 CCB->Next = NULL;
284 if (HostAdapter->Free_CCBs == NULL)
285 BusLogic_CreateAdditionalCCBs(HostAdapter, HostAdapter->IncrementalCCBs, true);
286 return CCB;
287 }
288 BusLogic_CreateAdditionalCCBs(HostAdapter, HostAdapter->IncrementalCCBs, true);
289 CCB = HostAdapter->Free_CCBs;
290 if (CCB == NULL)
291 return NULL;
292 CCB->SerialNumber = ++SerialNumber;
293 HostAdapter->Free_CCBs = CCB->Next;
294 CCB->Next = NULL;
295 return CCB;
296}
297
298
299/*
300 BusLogic_DeallocateCCB deallocates a CCB, returning it to the Host Adapter's
301 free list. The Host Adapter's Lock should already have been acquired by the
302 caller.
303*/
304
305static void BusLogic_DeallocateCCB(struct BusLogic_CCB *CCB)
306{
307 struct BusLogic_HostAdapter *HostAdapter = CCB->HostAdapter;
308
309 scsi_dma_unmap(CCB->Command);
310 pci_unmap_single(HostAdapter->PCI_Device, CCB->SenseDataPointer,
311 CCB->SenseDataLength, PCI_DMA_FROMDEVICE);
312
313 CCB->Command = NULL;
314 CCB->Status = BusLogic_CCB_Free;
315 CCB->Next = HostAdapter->Free_CCBs;
316 HostAdapter->Free_CCBs = CCB;
317}
318
319
320/*
321 BusLogic_Command sends the command OperationCode to HostAdapter, optionally
322 providing ParameterLength bytes of ParameterData and receiving at most
323 ReplyLength bytes of ReplyData; any excess reply data is received but
324 discarded.
325
326 On success, this function returns the number of reply bytes read from
327 the Host Adapter (including any discarded data); on failure, it returns
328 -1 if the command was invalid, or -2 if a timeout occurred.
329
330 BusLogic_Command is called exclusively during host adapter detection and
331 initialization, so performance and latency are not critical, and exclusive
332 access to the Host Adapter hardware is assumed. Once the host adapter and
333 driver are initialized, the only Host Adapter command that is issued is the
334 single byte Execute Mailbox Command operation code, which does not require
335 waiting for the Host Adapter Ready bit to be set in the Status Register.
336*/
337
338static int BusLogic_Command(struct BusLogic_HostAdapter *HostAdapter, enum BusLogic_OperationCode OperationCode, void *ParameterData, int ParameterLength, void *ReplyData, int ReplyLength)
339{
340 unsigned char *ParameterPointer = (unsigned char *) ParameterData;
341 unsigned char *ReplyPointer = (unsigned char *) ReplyData;
342 union BusLogic_StatusRegister StatusRegister;
343 union BusLogic_InterruptRegister InterruptRegister;
344 unsigned long ProcessorFlags = 0;
345 int ReplyBytes = 0, Result;
346 long TimeoutCounter;
347 /*
348 Clear out the Reply Data if provided.
349 */
350 if (ReplyLength > 0)
351 memset(ReplyData, 0, ReplyLength);
352 /*
353 If the IRQ Channel has not yet been acquired, then interrupts must be
354 disabled while issuing host adapter commands since a Command Complete
355 interrupt could occur if the IRQ Channel was previously enabled by another
356 BusLogic Host Adapter or another driver sharing the same IRQ Channel.
357 */
358 if (!HostAdapter->IRQ_ChannelAcquired)
359 local_irq_save(ProcessorFlags);
360 /*
361 Wait for the Host Adapter Ready bit to be set and the Command/Parameter
362 Register Busy bit to be reset in the Status Register.
363 */
364 TimeoutCounter = 10000;
365 while (--TimeoutCounter >= 0) {
366 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
367 if (StatusRegister.sr.HostAdapterReady && !StatusRegister.sr.CommandParameterRegisterBusy)
368 break;
369 udelay(100);
370 }
371 if (TimeoutCounter < 0) {
372 BusLogic_CommandFailureReason = "Timeout waiting for Host Adapter Ready";
373 Result = -2;
374 goto Done;
375 }
376 /*
377 Write the OperationCode to the Command/Parameter Register.
378 */
379 HostAdapter->HostAdapterCommandCompleted = false;
380 BusLogic_WriteCommandParameterRegister(HostAdapter, OperationCode);
381 /*
382 Write any additional Parameter Bytes.
383 */
384 TimeoutCounter = 10000;
385 while (ParameterLength > 0 && --TimeoutCounter >= 0) {
386 /*
387 Wait 100 microseconds to give the Host Adapter enough time to determine
388 whether the last value written to the Command/Parameter Register was
389 valid or not. If the Command Complete bit is set in the Interrupt
390 Register, then the Command Invalid bit in the Status Register will be
391 reset if the Operation Code or Parameter was valid and the command
392 has completed, or set if the Operation Code or Parameter was invalid.
393 If the Data In Register Ready bit is set in the Status Register, then
394 the Operation Code was valid, and data is waiting to be read back
395 from the Host Adapter. Otherwise, wait for the Command/Parameter
396 Register Busy bit in the Status Register to be reset.
397 */
398 udelay(100);
399 InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
400 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
401 if (InterruptRegister.ir.CommandComplete)
402 break;
403 if (HostAdapter->HostAdapterCommandCompleted)
404 break;
405 if (StatusRegister.sr.DataInRegisterReady)
406 break;
407 if (StatusRegister.sr.CommandParameterRegisterBusy)
408 continue;
409 BusLogic_WriteCommandParameterRegister(HostAdapter, *ParameterPointer++);
410 ParameterLength--;
411 }
412 if (TimeoutCounter < 0) {
413 BusLogic_CommandFailureReason = "Timeout waiting for Parameter Acceptance";
414 Result = -2;
415 goto Done;
416 }
417 /*
418 The Modify I/O Address command does not cause a Command Complete Interrupt.
419 */
420 if (OperationCode == BusLogic_ModifyIOAddress) {
421 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
422 if (StatusRegister.sr.CommandInvalid) {
423 BusLogic_CommandFailureReason = "Modify I/O Address Invalid";
424 Result = -1;
425 goto Done;
426 }
427 if (BusLogic_GlobalOptions.TraceConfiguration)
428 BusLogic_Notice("BusLogic_Command(%02X) Status = %02X: " "(Modify I/O Address)\n", HostAdapter, OperationCode, StatusRegister.All);
429 Result = 0;
430 goto Done;
431 }
432 /*
433 Select an appropriate timeout value for awaiting command completion.
434 */
435 switch (OperationCode) {
436 case BusLogic_InquireInstalledDevicesID0to7:
437 case BusLogic_InquireInstalledDevicesID8to15:
438 case BusLogic_InquireTargetDevices:
439 /* Approximately 60 seconds. */
440 TimeoutCounter = 60 * 10000;
441 break;
442 default:
443 /* Approximately 1 second. */
444 TimeoutCounter = 10000;
445 break;
446 }
447 /*
448 Receive any Reply Bytes, waiting for either the Command Complete bit to
449 be set in the Interrupt Register, or for the Interrupt Handler to set the
450 Host Adapter Command Completed bit in the Host Adapter structure.
451 */
452 while (--TimeoutCounter >= 0) {
453 InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
454 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
455 if (InterruptRegister.ir.CommandComplete)
456 break;
457 if (HostAdapter->HostAdapterCommandCompleted)
458 break;
459 if (StatusRegister.sr.DataInRegisterReady) {
460 if (++ReplyBytes <= ReplyLength)
461 *ReplyPointer++ = BusLogic_ReadDataInRegister(HostAdapter);
462 else
463 BusLogic_ReadDataInRegister(HostAdapter);
464 }
465 if (OperationCode == BusLogic_FetchHostAdapterLocalRAM && StatusRegister.sr.HostAdapterReady)
466 break;
467 udelay(100);
468 }
469 if (TimeoutCounter < 0) {
470 BusLogic_CommandFailureReason = "Timeout waiting for Command Complete";
471 Result = -2;
472 goto Done;
473 }
474 /*
475 Clear any pending Command Complete Interrupt.
476 */
477 BusLogic_InterruptReset(HostAdapter);
478 /*
479 Provide tracing information if requested.
480 */
481 if (BusLogic_GlobalOptions.TraceConfiguration) {
482 int i;
483 BusLogic_Notice("BusLogic_Command(%02X) Status = %02X: %2d ==> %2d:", HostAdapter, OperationCode, StatusRegister.All, ReplyLength, ReplyBytes);
484 if (ReplyLength > ReplyBytes)
485 ReplyLength = ReplyBytes;
486 for (i = 0; i < ReplyLength; i++)
487 BusLogic_Notice(" %02X", HostAdapter, ((unsigned char *) ReplyData)[i]);
488 BusLogic_Notice("\n", HostAdapter);
489 }
490 /*
491 Process Command Invalid conditions.
492 */
493 if (StatusRegister.sr.CommandInvalid) {
494 /*
495 Some early BusLogic Host Adapters may not recover properly from
496 a Command Invalid condition, so if this appears to be the case,
497 a Soft Reset is issued to the Host Adapter. Potentially invalid
498 commands are never attempted after Mailbox Initialization is
499 performed, so there should be no Host Adapter state lost by a
500 Soft Reset in response to a Command Invalid condition.
501 */
502 udelay(1000);
503 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
504 if (StatusRegister.sr.CommandInvalid ||
505 StatusRegister.sr.Reserved ||
506 StatusRegister.sr.DataInRegisterReady ||
507 StatusRegister.sr.CommandParameterRegisterBusy || !StatusRegister.sr.HostAdapterReady || !StatusRegister.sr.InitializationRequired || StatusRegister.sr.DiagnosticActive || StatusRegister.sr.DiagnosticFailure) {
508 BusLogic_SoftReset(HostAdapter);
509 udelay(1000);
510 }
511 BusLogic_CommandFailureReason = "Command Invalid";
512 Result = -1;
513 goto Done;
514 }
515 /*
516 Handle Excess Parameters Supplied conditions.
517 */
518 if (ParameterLength > 0) {
519 BusLogic_CommandFailureReason = "Excess Parameters Supplied";
520 Result = -1;
521 goto Done;
522 }
523 /*
524 Indicate the command completed successfully.
525 */
526 BusLogic_CommandFailureReason = NULL;
527 Result = ReplyBytes;
528 /*
529 Restore the interrupt status if necessary and return.
530 */
531 Done:
532 if (!HostAdapter->IRQ_ChannelAcquired)
533 local_irq_restore(ProcessorFlags);
534 return Result;
535}
536
537
538/*
539 BusLogic_AppendProbeAddressISA appends a single ISA I/O Address to the list
540 of I/O Address and Bus Probe Information to be checked for potential BusLogic
541 Host Adapters.
542*/
543
544static void __init BusLogic_AppendProbeAddressISA(unsigned long IO_Address)
545{
546 struct BusLogic_ProbeInfo *ProbeInfo;
547 if (BusLogic_ProbeInfoCount >= BusLogic_MaxHostAdapters)
548 return;
549 ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++];
550 ProbeInfo->HostAdapterType = BusLogic_MultiMaster;
551 ProbeInfo->HostAdapterBusType = BusLogic_ISA_Bus;
552 ProbeInfo->IO_Address = IO_Address;
553 ProbeInfo->PCI_Device = NULL;
554}
555
556
557/*
558 BusLogic_InitializeProbeInfoListISA initializes the list of I/O Address and
559 Bus Probe Information to be checked for potential BusLogic SCSI Host Adapters
560 only from the list of standard BusLogic MultiMaster ISA I/O Addresses.
561*/
562
563static void __init BusLogic_InitializeProbeInfoListISA(struct BusLogic_HostAdapter
564 *PrototypeHostAdapter)
565{
566 /*
567 If BusLogic Driver Options specifications requested that ISA Bus Probes
568 be inhibited, do not proceed further.
569 */
570 if (BusLogic_ProbeOptions.NoProbeISA)
571 return;
572 /*
573 Append the list of standard BusLogic MultiMaster ISA I/O Addresses.
574 */
575 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe330)
576 BusLogic_AppendProbeAddressISA(0x330);
577 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe334)
578 BusLogic_AppendProbeAddressISA(0x334);
579 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe230)
580 BusLogic_AppendProbeAddressISA(0x230);
581 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe234)
582 BusLogic_AppendProbeAddressISA(0x234);
583 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe130)
584 BusLogic_AppendProbeAddressISA(0x130);
585 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe134)
586 BusLogic_AppendProbeAddressISA(0x134);
587}
588
589
590#ifdef CONFIG_PCI
591
592
593/*
594 BusLogic_SortProbeInfo sorts a section of BusLogic_ProbeInfoList in order
595 of increasing PCI Bus and Device Number.
596*/
597
598static void __init BusLogic_SortProbeInfo(struct BusLogic_ProbeInfo *ProbeInfoList, int ProbeInfoCount)
599{
600 int LastInterchange = ProbeInfoCount - 1, Bound, j;
601 while (LastInterchange > 0) {
602 Bound = LastInterchange;
603 LastInterchange = 0;
604 for (j = 0; j < Bound; j++) {
605 struct BusLogic_ProbeInfo *ProbeInfo1 = &ProbeInfoList[j];
606 struct BusLogic_ProbeInfo *ProbeInfo2 = &ProbeInfoList[j + 1];
607 if (ProbeInfo1->Bus > ProbeInfo2->Bus || (ProbeInfo1->Bus == ProbeInfo2->Bus && (ProbeInfo1->Device > ProbeInfo2->Device))) {
608 struct BusLogic_ProbeInfo TempProbeInfo;
609 memcpy(&TempProbeInfo, ProbeInfo1, sizeof(struct BusLogic_ProbeInfo));
610 memcpy(ProbeInfo1, ProbeInfo2, sizeof(struct BusLogic_ProbeInfo));
611 memcpy(ProbeInfo2, &TempProbeInfo, sizeof(struct BusLogic_ProbeInfo));
612 LastInterchange = j;
613 }
614 }
615 }
616}
617
618
619/*
620 BusLogic_InitializeMultiMasterProbeInfo initializes the list of I/O Address
621 and Bus Probe Information to be checked for potential BusLogic MultiMaster
622 SCSI Host Adapters by interrogating the PCI Configuration Space on PCI
623 machines as well as from the list of standard BusLogic MultiMaster ISA
624 I/O Addresses. It returns the number of PCI MultiMaster Host Adapters found.
625*/
626
627static int __init BusLogic_InitializeMultiMasterProbeInfo(struct BusLogic_HostAdapter
628 *PrototypeHostAdapter)
629{
630 struct BusLogic_ProbeInfo *PrimaryProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount];
631 int NonPrimaryPCIMultiMasterIndex = BusLogic_ProbeInfoCount + 1;
632 int NonPrimaryPCIMultiMasterCount = 0, PCIMultiMasterCount = 0;
633 bool ForceBusDeviceScanningOrder = false;
634 bool ForceBusDeviceScanningOrderChecked = false;
635 bool StandardAddressSeen[6];
636 struct pci_dev *PCI_Device = NULL;
637 int i;
638 if (BusLogic_ProbeInfoCount >= BusLogic_MaxHostAdapters)
639 return 0;
640 BusLogic_ProbeInfoCount++;
641 for (i = 0; i < 6; i++)
642 StandardAddressSeen[i] = false;
643 /*
644 Iterate over the MultiMaster PCI Host Adapters. For each enumerated host
645 adapter, determine whether its ISA Compatible I/O Port is enabled and if
646 so, whether it is assigned the Primary I/O Address. A host adapter that is
647 assigned the Primary I/O Address will always be the preferred boot device.
648 The MultiMaster BIOS will first recognize a host adapter at the Primary I/O
649 Address, then any other PCI host adapters, and finally any host adapters
650 located at the remaining standard ISA I/O Addresses. When a PCI host
651 adapter is found with its ISA Compatible I/O Port enabled, a command is
652 issued to disable the ISA Compatible I/O Port, and it is noted that the
653 particular standard ISA I/O Address need not be probed.
654 */
655 PrimaryProbeInfo->IO_Address = 0;
656 while ((PCI_Device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER, PCI_Device)) != NULL) {
657 struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter;
658 struct BusLogic_PCIHostAdapterInformation PCIHostAdapterInformation;
659 enum BusLogic_ISACompatibleIOPort ModifyIOAddressRequest;
660 unsigned char Bus;
661 unsigned char Device;
662 unsigned int IRQ_Channel;
663 unsigned long BaseAddress0;
664 unsigned long BaseAddress1;
665 unsigned long IO_Address;
666 unsigned long PCI_Address;
667
668 if (pci_enable_device(PCI_Device))
669 continue;
670
671 if (pci_set_dma_mask(PCI_Device, DMA_BIT_MASK(32) ))
672 continue;
673
674 Bus = PCI_Device->bus->number;
675 Device = PCI_Device->devfn >> 3;
676 IRQ_Channel = PCI_Device->irq;
677 IO_Address = BaseAddress0 = pci_resource_start(PCI_Device, 0);
678 PCI_Address = BaseAddress1 = pci_resource_start(PCI_Device, 1);
679
680 if (pci_resource_flags(PCI_Device, 0) & IORESOURCE_MEM) {
681 BusLogic_Error("BusLogic: Base Address0 0x%X not I/O for " "MultiMaster Host Adapter\n", NULL, BaseAddress0);
682 BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address);
683 continue;
684 }
685 if (pci_resource_flags(PCI_Device, 1) & IORESOURCE_IO) {
686 BusLogic_Error("BusLogic: Base Address1 0x%X not Memory for " "MultiMaster Host Adapter\n", NULL, BaseAddress1);
687 BusLogic_Error("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, Bus, Device, PCI_Address);
688 continue;
689 }
690 if (IRQ_Channel == 0) {
691 BusLogic_Error("BusLogic: IRQ Channel %d invalid for " "MultiMaster Host Adapter\n", NULL, IRQ_Channel);
692 BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address);
693 continue;
694 }
695 if (BusLogic_GlobalOptions.TraceProbe) {
696 BusLogic_Notice("BusLogic: PCI MultiMaster Host Adapter " "detected at\n", NULL);
697 BusLogic_Notice("BusLogic: PCI Bus %d Device %d I/O Address " "0x%X PCI Address 0x%X\n", NULL, Bus, Device, IO_Address, PCI_Address);
698 }
699 /*
700 Issue the Inquire PCI Host Adapter Information command to determine
701 the ISA Compatible I/O Port. If the ISA Compatible I/O Port is
702 known and enabled, note that the particular Standard ISA I/O
703 Address should not be probed.
704 */
705 HostAdapter->IO_Address = IO_Address;
706 BusLogic_InterruptReset(HostAdapter);
707 if (BusLogic_Command(HostAdapter, BusLogic_InquirePCIHostAdapterInformation, NULL, 0, &PCIHostAdapterInformation, sizeof(PCIHostAdapterInformation))
708 == sizeof(PCIHostAdapterInformation)) {
709 if (PCIHostAdapterInformation.ISACompatibleIOPort < 6)
710 StandardAddressSeen[PCIHostAdapterInformation.ISACompatibleIOPort] = true;
711 } else
712 PCIHostAdapterInformation.ISACompatibleIOPort = BusLogic_IO_Disable;
713 /*
714 * Issue the Modify I/O Address command to disable the ISA Compatible
715 * I/O Port. On PCI Host Adapters, the Modify I/O Address command
716 * allows modification of the ISA compatible I/O Address that the Host
717 * Adapter responds to; it does not affect the PCI compliant I/O Address
718 * assigned at system initialization.
719 */
720 ModifyIOAddressRequest = BusLogic_IO_Disable;
721 BusLogic_Command(HostAdapter, BusLogic_ModifyIOAddress, &ModifyIOAddressRequest, sizeof(ModifyIOAddressRequest), NULL, 0);
722 /*
723 For the first MultiMaster Host Adapter enumerated, issue the Fetch
724 Host Adapter Local RAM command to read byte 45 of the AutoSCSI area,
725 for the setting of the "Use Bus And Device # For PCI Scanning Seq."
726 option. Issue the Inquire Board ID command since this option is
727 only valid for the BT-948/958/958D.
728 */
729 if (!ForceBusDeviceScanningOrderChecked) {
730 struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest;
731 struct BusLogic_AutoSCSIByte45 AutoSCSIByte45;
732 struct BusLogic_BoardID BoardID;
733 FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_AutoSCSI_BaseOffset + 45;
734 FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(AutoSCSIByte45);
735 BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &AutoSCSIByte45, sizeof(AutoSCSIByte45));
736 BusLogic_Command(HostAdapter, BusLogic_InquireBoardID, NULL, 0, &BoardID, sizeof(BoardID));
737 if (BoardID.FirmwareVersion1stDigit == '5')
738 ForceBusDeviceScanningOrder = AutoSCSIByte45.ForceBusDeviceScanningOrder;
739 ForceBusDeviceScanningOrderChecked = true;
740 }
741 /*
742 Determine whether this MultiMaster Host Adapter has its ISA
743 Compatible I/O Port enabled and is assigned the Primary I/O Address.
744 If it does, then it is the Primary MultiMaster Host Adapter and must
745 be recognized first. If it does not, then it is added to the list
746 for probing after any Primary MultiMaster Host Adapter is probed.
747 */
748 if (PCIHostAdapterInformation.ISACompatibleIOPort == BusLogic_IO_330) {
749 PrimaryProbeInfo->HostAdapterType = BusLogic_MultiMaster;
750 PrimaryProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus;
751 PrimaryProbeInfo->IO_Address = IO_Address;
752 PrimaryProbeInfo->PCI_Address = PCI_Address;
753 PrimaryProbeInfo->Bus = Bus;
754 PrimaryProbeInfo->Device = Device;
755 PrimaryProbeInfo->IRQ_Channel = IRQ_Channel;
756 PrimaryProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
757 PCIMultiMasterCount++;
758 } else if (BusLogic_ProbeInfoCount < BusLogic_MaxHostAdapters) {
759 struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++];
760 ProbeInfo->HostAdapterType = BusLogic_MultiMaster;
761 ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus;
762 ProbeInfo->IO_Address = IO_Address;
763 ProbeInfo->PCI_Address = PCI_Address;
764 ProbeInfo->Bus = Bus;
765 ProbeInfo->Device = Device;
766 ProbeInfo->IRQ_Channel = IRQ_Channel;
767 ProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
768 NonPrimaryPCIMultiMasterCount++;
769 PCIMultiMasterCount++;
770 } else
771 BusLogic_Warning("BusLogic: Too many Host Adapters " "detected\n", NULL);
772 }
773 /*
774 If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq." option is ON
775 for the first enumerated MultiMaster Host Adapter, and if that host adapter
776 is a BT-948/958/958D, then the MultiMaster BIOS will recognize MultiMaster
777 Host Adapters in the order of increasing PCI Bus and Device Number. In
778 that case, sort the probe information into the same order the BIOS uses.
779 If this option is OFF, then the MultiMaster BIOS will recognize MultiMaster
780 Host Adapters in the order they are enumerated by the PCI BIOS, and hence
781 no sorting is necessary.
782 */
783 if (ForceBusDeviceScanningOrder)
784 BusLogic_SortProbeInfo(&BusLogic_ProbeInfoList[NonPrimaryPCIMultiMasterIndex], NonPrimaryPCIMultiMasterCount);
785 /*
786 If no PCI MultiMaster Host Adapter is assigned the Primary I/O Address,
787 then the Primary I/O Address must be probed explicitly before any PCI
788 host adapters are probed.
789 */
790 if (!BusLogic_ProbeOptions.NoProbeISA)
791 if (PrimaryProbeInfo->IO_Address == 0 &&
792 (!BusLogic_ProbeOptions.LimitedProbeISA ||
793 BusLogic_ProbeOptions.Probe330)) {
794 PrimaryProbeInfo->HostAdapterType = BusLogic_MultiMaster;
795 PrimaryProbeInfo->HostAdapterBusType = BusLogic_ISA_Bus;
796 PrimaryProbeInfo->IO_Address = 0x330;
797 }
798 /*
799 Append the list of standard BusLogic MultiMaster ISA I/O Addresses,
800 omitting the Primary I/O Address which has already been handled.
801 */
802 if (!BusLogic_ProbeOptions.NoProbeISA) {
803 if (!StandardAddressSeen[1] &&
804 (!BusLogic_ProbeOptions.LimitedProbeISA ||
805 BusLogic_ProbeOptions.Probe334))
806 BusLogic_AppendProbeAddressISA(0x334);
807 if (!StandardAddressSeen[2] &&
808 (!BusLogic_ProbeOptions.LimitedProbeISA ||
809 BusLogic_ProbeOptions.Probe230))
810 BusLogic_AppendProbeAddressISA(0x230);
811 if (!StandardAddressSeen[3] &&
812 (!BusLogic_ProbeOptions.LimitedProbeISA ||
813 BusLogic_ProbeOptions.Probe234))
814 BusLogic_AppendProbeAddressISA(0x234);
815 if (!StandardAddressSeen[4] &&
816 (!BusLogic_ProbeOptions.LimitedProbeISA ||
817 BusLogic_ProbeOptions.Probe130))
818 BusLogic_AppendProbeAddressISA(0x130);
819 if (!StandardAddressSeen[5] &&
820 (!BusLogic_ProbeOptions.LimitedProbeISA ||
821 BusLogic_ProbeOptions.Probe134))
822 BusLogic_AppendProbeAddressISA(0x134);
823 }
824 /*
825 Iterate over the older non-compliant MultiMaster PCI Host Adapters,
826 noting the PCI bus location and assigned IRQ Channel.
827 */
828 PCI_Device = NULL;
829 while ((PCI_Device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC, PCI_Device)) != NULL) {
830 unsigned char Bus;
831 unsigned char Device;
832 unsigned int IRQ_Channel;
833 unsigned long IO_Address;
834
835 if (pci_enable_device(PCI_Device))
836 continue;
837
838 if (pci_set_dma_mask(PCI_Device, DMA_BIT_MASK(32)))
839 continue;
840
841 Bus = PCI_Device->bus->number;
842 Device = PCI_Device->devfn >> 3;
843 IRQ_Channel = PCI_Device->irq;
844 IO_Address = pci_resource_start(PCI_Device, 0);
845
846 if (IO_Address == 0 || IRQ_Channel == 0)
847 continue;
848 for (i = 0; i < BusLogic_ProbeInfoCount; i++) {
849 struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[i];
850 if (ProbeInfo->IO_Address == IO_Address && ProbeInfo->HostAdapterType == BusLogic_MultiMaster) {
851 ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus;
852 ProbeInfo->PCI_Address = 0;
853 ProbeInfo->Bus = Bus;
854 ProbeInfo->Device = Device;
855 ProbeInfo->IRQ_Channel = IRQ_Channel;
856 ProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
857 break;
858 }
859 }
860 }
861 return PCIMultiMasterCount;
862}
863
864
865/*
866 BusLogic_InitializeFlashPointProbeInfo initializes the list of I/O Address
867 and Bus Probe Information to be checked for potential BusLogic FlashPoint
868 Host Adapters by interrogating the PCI Configuration Space. It returns the
869 number of FlashPoint Host Adapters found.
870*/
871
872static int __init BusLogic_InitializeFlashPointProbeInfo(struct BusLogic_HostAdapter
873 *PrototypeHostAdapter)
874{
875 int FlashPointIndex = BusLogic_ProbeInfoCount, FlashPointCount = 0;
876 struct pci_dev *PCI_Device = NULL;
877 /*
878 Interrogate PCI Configuration Space for any FlashPoint Host Adapters.
879 */
880 while ((PCI_Device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT, PCI_Device)) != NULL) {
881 unsigned char Bus;
882 unsigned char Device;
883 unsigned int IRQ_Channel;
884 unsigned long BaseAddress0;
885 unsigned long BaseAddress1;
886 unsigned long IO_Address;
887 unsigned long PCI_Address;
888
889 if (pci_enable_device(PCI_Device))
890 continue;
891
892 if (pci_set_dma_mask(PCI_Device, DMA_BIT_MASK(32)))
893 continue;
894
895 Bus = PCI_Device->bus->number;
896 Device = PCI_Device->devfn >> 3;
897 IRQ_Channel = PCI_Device->irq;
898 IO_Address = BaseAddress0 = pci_resource_start(PCI_Device, 0);
899 PCI_Address = BaseAddress1 = pci_resource_start(PCI_Device, 1);
900#ifdef CONFIG_SCSI_FLASHPOINT
901 if (pci_resource_flags(PCI_Device, 0) & IORESOURCE_MEM) {
902 BusLogic_Error("BusLogic: Base Address0 0x%X not I/O for " "FlashPoint Host Adapter\n", NULL, BaseAddress0);
903 BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address);
904 continue;
905 }
906 if (pci_resource_flags(PCI_Device, 1) & IORESOURCE_IO) {
907 BusLogic_Error("BusLogic: Base Address1 0x%X not Memory for " "FlashPoint Host Adapter\n", NULL, BaseAddress1);
908 BusLogic_Error("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, Bus, Device, PCI_Address);
909 continue;
910 }
911 if (IRQ_Channel == 0) {
912 BusLogic_Error("BusLogic: IRQ Channel %d invalid for " "FlashPoint Host Adapter\n", NULL, IRQ_Channel);
913 BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address);
914 continue;
915 }
916 if (BusLogic_GlobalOptions.TraceProbe) {
917 BusLogic_Notice("BusLogic: FlashPoint Host Adapter " "detected at\n", NULL);
918 BusLogic_Notice("BusLogic: PCI Bus %d Device %d I/O Address " "0x%X PCI Address 0x%X\n", NULL, Bus, Device, IO_Address, PCI_Address);
919 }
920 if (BusLogic_ProbeInfoCount < BusLogic_MaxHostAdapters) {
921 struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++];
922 ProbeInfo->HostAdapterType = BusLogic_FlashPoint;
923 ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus;
924 ProbeInfo->IO_Address = IO_Address;
925 ProbeInfo->PCI_Address = PCI_Address;
926 ProbeInfo->Bus = Bus;
927 ProbeInfo->Device = Device;
928 ProbeInfo->IRQ_Channel = IRQ_Channel;
929 ProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
930 FlashPointCount++;
931 } else
932 BusLogic_Warning("BusLogic: Too many Host Adapters " "detected\n", NULL);
933#else
934 BusLogic_Error("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", NULL, Bus, Device);
935 BusLogic_Error("BusLogic: I/O Address 0x%X PCI Address 0x%X, irq %d, " "but FlashPoint\n", NULL, IO_Address, PCI_Address, IRQ_Channel);
936 BusLogic_Error("BusLogic: support was omitted in this kernel " "configuration.\n", NULL);
937#endif
938 }
939 /*
940 The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of
941 increasing PCI Bus and Device Number, so sort the probe information into
942 the same order the BIOS uses.
943 */
944 BusLogic_SortProbeInfo(&BusLogic_ProbeInfoList[FlashPointIndex], FlashPointCount);
945 return FlashPointCount;
946}
947
948
949/*
950 BusLogic_InitializeProbeInfoList initializes the list of I/O Address and Bus
951 Probe Information to be checked for potential BusLogic SCSI Host Adapters by
952 interrogating the PCI Configuration Space on PCI machines as well as from the
953 list of standard BusLogic MultiMaster ISA I/O Addresses. By default, if both
954 FlashPoint and PCI MultiMaster Host Adapters are present, this driver will
955 probe for FlashPoint Host Adapters first unless the BIOS primary disk is
956 controlled by the first PCI MultiMaster Host Adapter, in which case
957 MultiMaster Host Adapters will be probed first. The BusLogic Driver Options
958 specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force
959 a particular probe order.
960*/
961
962static void __init BusLogic_InitializeProbeInfoList(struct BusLogic_HostAdapter
963 *PrototypeHostAdapter)
964{
965 /*
966 If a PCI BIOS is present, interrogate it for MultiMaster and FlashPoint
967 Host Adapters; otherwise, default to the standard ISA MultiMaster probe.
968 */
969 if (!BusLogic_ProbeOptions.NoProbePCI) {
970 if (BusLogic_ProbeOptions.MultiMasterFirst) {
971 BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter);
972 BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter);
973 } else if (BusLogic_ProbeOptions.FlashPointFirst) {
974 BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter);
975 BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter);
976 } else {
977 int FlashPointCount = BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter);
978 int PCIMultiMasterCount = BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter);
979 if (FlashPointCount > 0 && PCIMultiMasterCount > 0) {
980 struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[FlashPointCount];
981 struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter;
982 struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest;
983 struct BusLogic_BIOSDriveMapByte Drive0MapByte;
984 while (ProbeInfo->HostAdapterBusType != BusLogic_PCI_Bus)
985 ProbeInfo++;
986 HostAdapter->IO_Address = ProbeInfo->IO_Address;
987 FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_BIOS_BaseOffset + BusLogic_BIOS_DriveMapOffset + 0;
988 FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(Drive0MapByte);
989 BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &Drive0MapByte, sizeof(Drive0MapByte));
990 /*
991 If the Map Byte for BIOS Drive 0 indicates that BIOS Drive 0
992 is controlled by this PCI MultiMaster Host Adapter, then
993 reverse the probe order so that MultiMaster Host Adapters are
994 probed before FlashPoint Host Adapters.
995 */
996 if (Drive0MapByte.DiskGeometry != BusLogic_BIOS_Disk_Not_Installed) {
997 struct BusLogic_ProbeInfo SavedProbeInfo[BusLogic_MaxHostAdapters];
998 int MultiMasterCount = BusLogic_ProbeInfoCount - FlashPointCount;
999 memcpy(SavedProbeInfo, BusLogic_ProbeInfoList, BusLogic_ProbeInfoCount * sizeof(struct BusLogic_ProbeInfo));
1000 memcpy(&BusLogic_ProbeInfoList[0], &SavedProbeInfo[FlashPointCount], MultiMasterCount * sizeof(struct BusLogic_ProbeInfo));
1001 memcpy(&BusLogic_ProbeInfoList[MultiMasterCount], &SavedProbeInfo[0], FlashPointCount * sizeof(struct BusLogic_ProbeInfo));
1002 }
1003 }
1004 }
1005 } else
1006 BusLogic_InitializeProbeInfoListISA(PrototypeHostAdapter);
1007}
1008
1009
1010#else
1011#define BusLogic_InitializeProbeInfoList(adapter) \
1012 BusLogic_InitializeProbeInfoListISA(adapter)
1013#endif /* CONFIG_PCI */
1014
1015
1016/*
1017 BusLogic_Failure prints a standardized error message, and then returns false.
1018*/
1019
1020static bool BusLogic_Failure(struct BusLogic_HostAdapter *HostAdapter, char *ErrorMessage)
1021{
1022 BusLogic_AnnounceDriver(HostAdapter);
1023 if (HostAdapter->HostAdapterBusType == BusLogic_PCI_Bus) {
1024 BusLogic_Error("While configuring BusLogic PCI Host Adapter at\n", HostAdapter);
1025 BusLogic_Error("Bus %d Device %d I/O Address 0x%X PCI Address 0x%X:\n", HostAdapter, HostAdapter->Bus, HostAdapter->Device, HostAdapter->IO_Address, HostAdapter->PCI_Address);
1026 } else
1027 BusLogic_Error("While configuring BusLogic Host Adapter at " "I/O Address 0x%X:\n", HostAdapter, HostAdapter->IO_Address);
1028 BusLogic_Error("%s FAILED - DETACHING\n", HostAdapter, ErrorMessage);
1029 if (BusLogic_CommandFailureReason != NULL)
1030 BusLogic_Error("ADDITIONAL FAILURE INFO - %s\n", HostAdapter, BusLogic_CommandFailureReason);
1031 return false;
1032}
1033
1034
1035/*
1036 BusLogic_ProbeHostAdapter probes for a BusLogic Host Adapter.
1037*/
1038
1039static bool __init BusLogic_ProbeHostAdapter(struct BusLogic_HostAdapter *HostAdapter)
1040{
1041 union BusLogic_StatusRegister StatusRegister;
1042 union BusLogic_InterruptRegister InterruptRegister;
1043 union BusLogic_GeometryRegister GeometryRegister;
1044 /*
1045 FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager.
1046 */
1047 if (BusLogic_FlashPointHostAdapterP(HostAdapter)) {
1048 struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo;
1049 FlashPointInfo->BaseAddress = (u32) HostAdapter->IO_Address;
1050 FlashPointInfo->IRQ_Channel = HostAdapter->IRQ_Channel;
1051 FlashPointInfo->Present = false;
1052 if (!(FlashPoint_ProbeHostAdapter(FlashPointInfo) == 0 && FlashPointInfo->Present)) {
1053 BusLogic_Error("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", HostAdapter, HostAdapter->Bus, HostAdapter->Device);
1054 BusLogic_Error("BusLogic: I/O Address 0x%X PCI Address 0x%X, " "but FlashPoint\n", HostAdapter, HostAdapter->IO_Address, HostAdapter->PCI_Address);
1055 BusLogic_Error("BusLogic: Probe Function failed to validate it.\n", HostAdapter);
1056 return false;
1057 }
1058 if (BusLogic_GlobalOptions.TraceProbe)
1059 BusLogic_Notice("BusLogic_Probe(0x%X): FlashPoint Found\n", HostAdapter, HostAdapter->IO_Address);
1060 /*
1061 Indicate the Host Adapter Probe completed successfully.
1062 */
1063 return true;
1064 }
1065 /*
1066 Read the Status, Interrupt, and Geometry Registers to test if there are I/O
1067 ports that respond, and to check the values to determine if they are from a
1068 BusLogic Host Adapter. A nonexistent I/O port will return 0xFF, in which
1069 case there is definitely no BusLogic Host Adapter at this base I/O Address.
1070 The test here is a subset of that used by the BusLogic Host Adapter BIOS.
1071 */
1072 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
1073 InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
1074 GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter);
1075 if (BusLogic_GlobalOptions.TraceProbe)
1076 BusLogic_Notice("BusLogic_Probe(0x%X): Status 0x%02X, Interrupt 0x%02X, " "Geometry 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All, InterruptRegister.All, GeometryRegister.All);
1077 if (StatusRegister.All == 0 || StatusRegister.sr.DiagnosticActive || StatusRegister.sr.CommandParameterRegisterBusy || StatusRegister.sr.Reserved || StatusRegister.sr.CommandInvalid || InterruptRegister.ir.Reserved != 0)
1078 return false;
1079 /*
1080 Check the undocumented Geometry Register to test if there is an I/O port
1081 that responded. Adaptec Host Adapters do not implement the Geometry
1082 Register, so this test helps serve to avoid incorrectly recognizing an
1083 Adaptec 1542A or 1542B as a BusLogic. Unfortunately, the Adaptec 1542C
1084 series does respond to the Geometry Register I/O port, but it will be
1085 rejected later when the Inquire Extended Setup Information command is
1086 issued in BusLogic_CheckHostAdapter. The AMI FastDisk Host Adapter is a
1087 BusLogic clone that implements the same interface as earlier BusLogic
1088 Host Adapters, including the undocumented commands, and is therefore
1089 supported by this driver. However, the AMI FastDisk always returns 0x00
1090 upon reading the Geometry Register, so the extended translation option
1091 should always be left disabled on the AMI FastDisk.
1092 */
1093 if (GeometryRegister.All == 0xFF)
1094 return false;
1095 /*
1096 Indicate the Host Adapter Probe completed successfully.
1097 */
1098 return true;
1099}
1100
1101
1102/*
1103 BusLogic_HardwareResetHostAdapter issues a Hardware Reset to the Host Adapter
1104 and waits for Host Adapter Diagnostics to complete. If HardReset is true, a
1105 Hard Reset is performed which also initiates a SCSI Bus Reset. Otherwise, a
1106 Soft Reset is performed which only resets the Host Adapter without forcing a
1107 SCSI Bus Reset.
1108*/
1109
1110static bool BusLogic_HardwareResetHostAdapter(struct BusLogic_HostAdapter
1111 *HostAdapter, bool HardReset)
1112{
1113 union BusLogic_StatusRegister StatusRegister;
1114 int TimeoutCounter;
1115 /*
1116 FlashPoint Host Adapters are Hard Reset by the FlashPoint SCCB Manager.
1117 */
1118 if (BusLogic_FlashPointHostAdapterP(HostAdapter)) {
1119 struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo;
1120 FlashPointInfo->HostSoftReset = !HardReset;
1121 FlashPointInfo->ReportDataUnderrun = true;
1122 HostAdapter->CardHandle = FlashPoint_HardwareResetHostAdapter(FlashPointInfo);
1123 if (HostAdapter->CardHandle == FlashPoint_BadCardHandle)
1124 return false;
1125 /*
1126 Indicate the Host Adapter Hard Reset completed successfully.
1127 */
1128 return true;
1129 }
1130 /*
1131 Issue a Hard Reset or Soft Reset Command to the Host Adapter. The Host
1132 Adapter should respond by setting Diagnostic Active in the Status Register.
1133 */
1134 if (HardReset)
1135 BusLogic_HardReset(HostAdapter);
1136 else
1137 BusLogic_SoftReset(HostAdapter);
1138 /*
1139 Wait until Diagnostic Active is set in the Status Register.
1140 */
1141 TimeoutCounter = 5 * 10000;
1142 while (--TimeoutCounter >= 0) {
1143 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
1144 if (StatusRegister.sr.DiagnosticActive)
1145 break;
1146 udelay(100);
1147 }
1148 if (BusLogic_GlobalOptions.TraceHardwareReset)
1149 BusLogic_Notice("BusLogic_HardwareReset(0x%X): Diagnostic Active, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All);
1150 if (TimeoutCounter < 0)
1151 return false;
1152 /*
1153 Wait 100 microseconds to allow completion of any initial diagnostic
1154 activity which might leave the contents of the Status Register
1155 unpredictable.
1156 */
1157 udelay(100);
1158 /*
1159 Wait until Diagnostic Active is reset in the Status Register.
1160 */
1161 TimeoutCounter = 10 * 10000;
1162 while (--TimeoutCounter >= 0) {
1163 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
1164 if (!StatusRegister.sr.DiagnosticActive)
1165 break;
1166 udelay(100);
1167 }
1168 if (BusLogic_GlobalOptions.TraceHardwareReset)
1169 BusLogic_Notice("BusLogic_HardwareReset(0x%X): Diagnostic Completed, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All);
1170 if (TimeoutCounter < 0)
1171 return false;
1172 /*
1173 Wait until at least one of the Diagnostic Failure, Host Adapter Ready,
1174 or Data In Register Ready bits is set in the Status Register.
1175 */
1176 TimeoutCounter = 10000;
1177 while (--TimeoutCounter >= 0) {
1178 StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter);
1179 if (StatusRegister.sr.DiagnosticFailure || StatusRegister.sr.HostAdapterReady || StatusRegister.sr.DataInRegisterReady)
1180 break;
1181 udelay(100);
1182 }
1183 if (BusLogic_GlobalOptions.TraceHardwareReset)
1184 BusLogic_Notice("BusLogic_HardwareReset(0x%X): Host Adapter Ready, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All);
1185 if (TimeoutCounter < 0)
1186 return false;
1187 /*
1188 If Diagnostic Failure is set or Host Adapter Ready is reset, then an
1189 error occurred during the Host Adapter diagnostics. If Data In Register
1190 Ready is set, then there is an Error Code available.
1191 */
1192 if (StatusRegister.sr.DiagnosticFailure || !StatusRegister.sr.HostAdapterReady) {
1193 BusLogic_CommandFailureReason = NULL;
1194 BusLogic_Failure(HostAdapter, "HARD RESET DIAGNOSTICS");
1195 BusLogic_Error("HOST ADAPTER STATUS REGISTER = %02X\n", HostAdapter, StatusRegister.All);
1196 if (StatusRegister.sr.DataInRegisterReady) {
1197 unsigned char ErrorCode = BusLogic_ReadDataInRegister(HostAdapter);
1198 BusLogic_Error("HOST ADAPTER ERROR CODE = %d\n", HostAdapter, ErrorCode);
1199 }
1200 return false;
1201 }
1202 /*
1203 Indicate the Host Adapter Hard Reset completed successfully.
1204 */
1205 return true;
1206}
1207
1208
1209/*
1210 BusLogic_CheckHostAdapter checks to be sure this really is a BusLogic
1211 Host Adapter.
1212*/
1213
1214static bool __init BusLogic_CheckHostAdapter(struct BusLogic_HostAdapter *HostAdapter)
1215{
1216 struct BusLogic_ExtendedSetupInformation ExtendedSetupInformation;
1217 unsigned char RequestedReplyLength;
1218 bool Result = true;
1219 /*
1220 FlashPoint Host Adapters do not require this protection.
1221 */
1222 if (BusLogic_FlashPointHostAdapterP(HostAdapter))
1223 return true;
1224 /*
1225 Issue the Inquire Extended Setup Information command. Only genuine
1226 BusLogic Host Adapters and true clones support this command. Adaptec 1542C
1227 series Host Adapters that respond to the Geometry Register I/O port will
1228 fail this command.
1229 */
1230 RequestedReplyLength = sizeof(ExtendedSetupInformation);
1231 if (BusLogic_Command(HostAdapter, BusLogic_InquireExtendedSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &ExtendedSetupInformation, sizeof(ExtendedSetupInformation))
1232 != sizeof(ExtendedSetupInformation))
1233 Result = false;
1234 /*
1235 Provide tracing information if requested and return.
1236 */
1237 if (BusLogic_GlobalOptions.TraceProbe)
1238 BusLogic_Notice("BusLogic_Check(0x%X): MultiMaster %s\n", HostAdapter, HostAdapter->IO_Address, (Result ? "Found" : "Not Found"));
1239 return Result;
1240}
1241
1242
1243/*
1244 BusLogic_ReadHostAdapterConfiguration reads the Configuration Information
1245 from Host Adapter and initializes the Host Adapter structure.
1246*/
1247
1248static bool __init BusLogic_ReadHostAdapterConfiguration(struct BusLogic_HostAdapter
1249 *HostAdapter)
1250{
1251 struct BusLogic_BoardID BoardID;
1252 struct BusLogic_Configuration Configuration;
1253 struct BusLogic_SetupInformation SetupInformation;
1254 struct BusLogic_ExtendedSetupInformation ExtendedSetupInformation;
1255 unsigned char HostAdapterModelNumber[5];
1256 unsigned char FirmwareVersion3rdDigit;
1257 unsigned char FirmwareVersionLetter;
1258 struct BusLogic_PCIHostAdapterInformation PCIHostAdapterInformation;
1259 struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest;
1260 struct BusLogic_AutoSCSIData AutoSCSIData;
1261 union BusLogic_GeometryRegister GeometryRegister;
1262 unsigned char RequestedReplyLength;
1263 unsigned char *TargetPointer, Character;
1264 int TargetID, i;
1265 /*
1266 Configuration Information for FlashPoint Host Adapters is provided in the
1267 FlashPoint_Info structure by the FlashPoint SCCB Manager's Probe Function.
1268 Initialize fields in the Host Adapter structure from the FlashPoint_Info
1269 structure.
1270 */
1271 if (BusLogic_FlashPointHostAdapterP(HostAdapter)) {
1272 struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo;
1273 TargetPointer = HostAdapter->ModelName;
1274 *TargetPointer++ = 'B';
1275 *TargetPointer++ = 'T';
1276 *TargetPointer++ = '-';
1277 for (i = 0; i < sizeof(FlashPointInfo->ModelNumber); i++)
1278 *TargetPointer++ = FlashPointInfo->ModelNumber[i];
1279 *TargetPointer++ = '\0';
1280 strcpy(HostAdapter->FirmwareVersion, FlashPoint_FirmwareVersion);
1281 HostAdapter->SCSI_ID = FlashPointInfo->SCSI_ID;
1282 HostAdapter->ExtendedTranslationEnabled = FlashPointInfo->ExtendedTranslationEnabled;
1283 HostAdapter->ParityCheckingEnabled = FlashPointInfo->ParityCheckingEnabled;
1284 HostAdapter->BusResetEnabled = !FlashPointInfo->HostSoftReset;
1285 HostAdapter->LevelSensitiveInterrupt = true;
1286 HostAdapter->HostWideSCSI = FlashPointInfo->HostWideSCSI;
1287 HostAdapter->HostDifferentialSCSI = false;
1288 HostAdapter->HostSupportsSCAM = true;
1289 HostAdapter->HostUltraSCSI = true;
1290 HostAdapter->ExtendedLUNSupport = true;
1291 HostAdapter->TerminationInfoValid = true;
1292 HostAdapter->LowByteTerminated = FlashPointInfo->LowByteTerminated;
1293 HostAdapter->HighByteTerminated = FlashPointInfo->HighByteTerminated;
1294 HostAdapter->SCAM_Enabled = FlashPointInfo->SCAM_Enabled;
1295 HostAdapter->SCAM_Level2 = FlashPointInfo->SCAM_Level2;
1296 HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit;
1297 HostAdapter->MaxTargetDevices = (HostAdapter->HostWideSCSI ? 16 : 8);
1298 HostAdapter->MaxLogicalUnits = 32;
1299 HostAdapter->InitialCCBs = 4 * BusLogic_CCB_AllocationGroupSize;
1300 HostAdapter->IncrementalCCBs = BusLogic_CCB_AllocationGroupSize;
1301 HostAdapter->DriverQueueDepth = 255;
1302 HostAdapter->HostAdapterQueueDepth = HostAdapter->DriverQueueDepth;
1303 HostAdapter->SynchronousPermitted = FlashPointInfo->SynchronousPermitted;
1304 HostAdapter->FastPermitted = FlashPointInfo->FastPermitted;
1305 HostAdapter->UltraPermitted = FlashPointInfo->UltraPermitted;
1306 HostAdapter->WidePermitted = FlashPointInfo->WidePermitted;
1307 HostAdapter->DisconnectPermitted = FlashPointInfo->DisconnectPermitted;
1308 HostAdapter->TaggedQueuingPermitted = 0xFFFF;
1309 goto Common;
1310 }
1311 /*
1312 Issue the Inquire Board ID command.
1313 */
1314 if (BusLogic_Command(HostAdapter, BusLogic_InquireBoardID, NULL, 0, &BoardID, sizeof(BoardID)) != sizeof(BoardID))
1315 return BusLogic_Failure(HostAdapter, "INQUIRE BOARD ID");
1316 /*
1317 Issue the Inquire Configuration command.
1318 */
1319 if (BusLogic_Command(HostAdapter, BusLogic_InquireConfiguration, NULL, 0, &Configuration, sizeof(Configuration))
1320 != sizeof(Configuration))
1321 return BusLogic_Failure(HostAdapter, "INQUIRE CONFIGURATION");
1322 /*
1323 Issue the Inquire Setup Information command.
1324 */
1325 RequestedReplyLength = sizeof(SetupInformation);
1326 if (BusLogic_Command(HostAdapter, BusLogic_InquireSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &SetupInformation, sizeof(SetupInformation))
1327 != sizeof(SetupInformation))
1328 return BusLogic_Failure(HostAdapter, "INQUIRE SETUP INFORMATION");
1329 /*
1330 Issue the Inquire Extended Setup Information command.
1331 */
1332 RequestedReplyLength = sizeof(ExtendedSetupInformation);
1333 if (BusLogic_Command(HostAdapter, BusLogic_InquireExtendedSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &ExtendedSetupInformation, sizeof(ExtendedSetupInformation))
1334 != sizeof(ExtendedSetupInformation))
1335 return BusLogic_Failure(HostAdapter, "INQUIRE EXTENDED SETUP INFORMATION");
1336 /*
1337 Issue the Inquire Firmware Version 3rd Digit command.
1338 */
1339 FirmwareVersion3rdDigit = '\0';
1340 if (BoardID.FirmwareVersion1stDigit > '0')
1341 if (BusLogic_Command(HostAdapter, BusLogic_InquireFirmwareVersion3rdDigit, NULL, 0, &FirmwareVersion3rdDigit, sizeof(FirmwareVersion3rdDigit))
1342 != sizeof(FirmwareVersion3rdDigit))
1343 return BusLogic_Failure(HostAdapter, "INQUIRE FIRMWARE 3RD DIGIT");
1344 /*
1345 Issue the Inquire Host Adapter Model Number command.
1346 */
1347 if (ExtendedSetupInformation.BusType == 'A' && BoardID.FirmwareVersion1stDigit == '2')
1348 /* BusLogic BT-542B ISA 2.xx */
1349 strcpy(HostAdapterModelNumber, "542B");
1350 else if (ExtendedSetupInformation.BusType == 'E' && BoardID.FirmwareVersion1stDigit == '2' && (BoardID.FirmwareVersion2ndDigit <= '1' || (BoardID.FirmwareVersion2ndDigit == '2' && FirmwareVersion3rdDigit == '0')))
1351 /* BusLogic BT-742A EISA 2.1x or 2.20 */
1352 strcpy(HostAdapterModelNumber, "742A");
1353 else if (ExtendedSetupInformation.BusType == 'E' && BoardID.FirmwareVersion1stDigit == '0')
1354 /* AMI FastDisk EISA Series 441 0.x */
1355 strcpy(HostAdapterModelNumber, "747A");
1356 else {
1357 RequestedReplyLength = sizeof(HostAdapterModelNumber);
1358 if (BusLogic_Command(HostAdapter, BusLogic_InquireHostAdapterModelNumber, &RequestedReplyLength, sizeof(RequestedReplyLength), &HostAdapterModelNumber, sizeof(HostAdapterModelNumber))
1359 != sizeof(HostAdapterModelNumber))
1360 return BusLogic_Failure(HostAdapter, "INQUIRE HOST ADAPTER MODEL NUMBER");
1361 }
1362 /*
1363 BusLogic MultiMaster Host Adapters can be identified by their model number
1364 and the major version number of their firmware as follows:
1365
1366 5.xx BusLogic "W" Series Host Adapters:
1367 BT-948/958/958D
1368 4.xx BusLogic "C" Series Host Adapters:
1369 BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
1370 3.xx BusLogic "S" Series Host Adapters:
1371 BT-747S/747D/757S/757D/445S/545S/542D
1372 BT-542B/742A (revision H)
1373 2.xx BusLogic "A" Series Host Adapters:
1374 BT-542B/742A (revision G and below)
1375 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter
1376 */
1377 /*
1378 Save the Model Name and Host Adapter Name in the Host Adapter structure.
1379 */
1380 TargetPointer = HostAdapter->ModelName;
1381 *TargetPointer++ = 'B';
1382 *TargetPointer++ = 'T';
1383 *TargetPointer++ = '-';
1384 for (i = 0; i < sizeof(HostAdapterModelNumber); i++) {
1385 Character = HostAdapterModelNumber[i];
1386 if (Character == ' ' || Character == '\0')
1387 break;
1388 *TargetPointer++ = Character;
1389 }
1390 *TargetPointer++ = '\0';
1391 /*
1392 Save the Firmware Version in the Host Adapter structure.
1393 */
1394 TargetPointer = HostAdapter->FirmwareVersion;
1395 *TargetPointer++ = BoardID.FirmwareVersion1stDigit;
1396 *TargetPointer++ = '.';
1397 *TargetPointer++ = BoardID.FirmwareVersion2ndDigit;
1398 if (FirmwareVersion3rdDigit != ' ' && FirmwareVersion3rdDigit != '\0')
1399 *TargetPointer++ = FirmwareVersion3rdDigit;
1400 *TargetPointer = '\0';
1401 /*
1402 Issue the Inquire Firmware Version Letter command.
1403 */
1404 if (strcmp(HostAdapter->FirmwareVersion, "3.3") >= 0) {
1405 if (BusLogic_Command(HostAdapter, BusLogic_InquireFirmwareVersionLetter, NULL, 0, &FirmwareVersionLetter, sizeof(FirmwareVersionLetter))
1406 != sizeof(FirmwareVersionLetter))
1407 return BusLogic_Failure(HostAdapter, "INQUIRE FIRMWARE VERSION LETTER");
1408 if (FirmwareVersionLetter != ' ' && FirmwareVersionLetter != '\0')
1409 *TargetPointer++ = FirmwareVersionLetter;
1410 *TargetPointer = '\0';
1411 }
1412 /*
1413 Save the Host Adapter SCSI ID in the Host Adapter structure.
1414 */
1415 HostAdapter->SCSI_ID = Configuration.HostAdapterID;
1416 /*
1417 Determine the Bus Type and save it in the Host Adapter structure, determine
1418 and save the IRQ Channel if necessary, and determine and save the DMA
1419 Channel for ISA Host Adapters.
1420 */
1421 HostAdapter->HostAdapterBusType = BusLogic_HostAdapterBusTypes[HostAdapter->ModelName[3] - '4'];
1422 if (HostAdapter->IRQ_Channel == 0) {
1423 if (Configuration.IRQ_Channel9)
1424 HostAdapter->IRQ_Channel = 9;
1425 else if (Configuration.IRQ_Channel10)
1426 HostAdapter->IRQ_Channel = 10;
1427 else if (Configuration.IRQ_Channel11)
1428 HostAdapter->IRQ_Channel = 11;
1429 else if (Configuration.IRQ_Channel12)
1430 HostAdapter->IRQ_Channel = 12;
1431 else if (Configuration.IRQ_Channel14)
1432 HostAdapter->IRQ_Channel = 14;
1433 else if (Configuration.IRQ_Channel15)
1434 HostAdapter->IRQ_Channel = 15;
1435 }
1436 if (HostAdapter->HostAdapterBusType == BusLogic_ISA_Bus) {
1437 if (Configuration.DMA_Channel5)
1438 HostAdapter->DMA_Channel = 5;
1439 else if (Configuration.DMA_Channel6)
1440 HostAdapter->DMA_Channel = 6;
1441 else if (Configuration.DMA_Channel7)
1442 HostAdapter->DMA_Channel = 7;
1443 }
1444 /*
1445 Determine whether Extended Translation is enabled and save it in
1446 the Host Adapter structure.
1447 */
1448 GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter);
1449 HostAdapter->ExtendedTranslationEnabled = GeometryRegister.gr.ExtendedTranslationEnabled;
1450 /*
1451 Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide
1452 SCSI flag, Differential SCSI flag, SCAM Supported flag, and
1453 Ultra SCSI flag in the Host Adapter structure.
1454 */
1455 HostAdapter->HostAdapterScatterGatherLimit = ExtendedSetupInformation.ScatterGatherLimit;
1456 HostAdapter->DriverScatterGatherLimit = HostAdapter->HostAdapterScatterGatherLimit;
1457 if (HostAdapter->HostAdapterScatterGatherLimit > BusLogic_ScatterGatherLimit)
1458 HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit;
1459 if (ExtendedSetupInformation.Misc.LevelSensitiveInterrupt)
1460 HostAdapter->LevelSensitiveInterrupt = true;
1461 HostAdapter->HostWideSCSI = ExtendedSetupInformation.HostWideSCSI;
1462 HostAdapter->HostDifferentialSCSI = ExtendedSetupInformation.HostDifferentialSCSI;
1463 HostAdapter->HostSupportsSCAM = ExtendedSetupInformation.HostSupportsSCAM;
1464 HostAdapter->HostUltraSCSI = ExtendedSetupInformation.HostUltraSCSI;
1465 /*
1466 Determine whether Extended LUN Format CCBs are supported and save the
1467 information in the Host Adapter structure.
1468 */
1469 if (HostAdapter->FirmwareVersion[0] == '5' || (HostAdapter->FirmwareVersion[0] == '4' && HostAdapter->HostWideSCSI))
1470 HostAdapter->ExtendedLUNSupport = true;
1471 /*
1472 Issue the Inquire PCI Host Adapter Information command to read the
1473 Termination Information from "W" series MultiMaster Host Adapters.
1474 */
1475 if (HostAdapter->FirmwareVersion[0] == '5') {
1476 if (BusLogic_Command(HostAdapter, BusLogic_InquirePCIHostAdapterInformation, NULL, 0, &PCIHostAdapterInformation, sizeof(PCIHostAdapterInformation))
1477 != sizeof(PCIHostAdapterInformation))
1478 return BusLogic_Failure(HostAdapter, "INQUIRE PCI HOST ADAPTER INFORMATION");
1479 /*
1480 Save the Termination Information in the Host Adapter structure.
1481 */
1482 if (PCIHostAdapterInformation.GenericInfoValid) {
1483 HostAdapter->TerminationInfoValid = true;
1484 HostAdapter->LowByteTerminated = PCIHostAdapterInformation.LowByteTerminated;
1485 HostAdapter->HighByteTerminated = PCIHostAdapterInformation.HighByteTerminated;
1486 }
1487 }
1488 /*
1489 Issue the Fetch Host Adapter Local RAM command to read the AutoSCSI data
1490 from "W" and "C" series MultiMaster Host Adapters.
1491 */
1492 if (HostAdapter->FirmwareVersion[0] >= '4') {
1493 FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_AutoSCSI_BaseOffset;
1494 FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(AutoSCSIData);
1495 if (BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &AutoSCSIData, sizeof(AutoSCSIData))
1496 != sizeof(AutoSCSIData))
1497 return BusLogic_Failure(HostAdapter, "FETCH HOST ADAPTER LOCAL RAM");
1498 /*
1499 Save the Parity Checking Enabled, Bus Reset Enabled, and Termination
1500 Information in the Host Adapter structure.
1501 */
1502 HostAdapter->ParityCheckingEnabled = AutoSCSIData.ParityCheckingEnabled;
1503 HostAdapter->BusResetEnabled = AutoSCSIData.BusResetEnabled;
1504 if (HostAdapter->FirmwareVersion[0] == '4') {
1505 HostAdapter->TerminationInfoValid = true;
1506 HostAdapter->LowByteTerminated = AutoSCSIData.LowByteTerminated;
1507 HostAdapter->HighByteTerminated = AutoSCSIData.HighByteTerminated;
1508 }
1509 /*
1510 Save the Wide Permitted, Fast Permitted, Synchronous Permitted,
1511 Disconnect Permitted, Ultra Permitted, and SCAM Information in the
1512 Host Adapter structure.
1513 */
1514 HostAdapter->WidePermitted = AutoSCSIData.WidePermitted;
1515 HostAdapter->FastPermitted = AutoSCSIData.FastPermitted;
1516 HostAdapter->SynchronousPermitted = AutoSCSIData.SynchronousPermitted;
1517 HostAdapter->DisconnectPermitted = AutoSCSIData.DisconnectPermitted;
1518 if (HostAdapter->HostUltraSCSI)
1519 HostAdapter->UltraPermitted = AutoSCSIData.UltraPermitted;
1520 if (HostAdapter->HostSupportsSCAM) {
1521 HostAdapter->SCAM_Enabled = AutoSCSIData.SCAM_Enabled;
1522 HostAdapter->SCAM_Level2 = AutoSCSIData.SCAM_Level2;
1523 }
1524 }
1525 /*
1526 Initialize fields in the Host Adapter structure for "S" and "A" series
1527 MultiMaster Host Adapters.
1528 */
1529 if (HostAdapter->FirmwareVersion[0] < '4') {
1530 if (SetupInformation.SynchronousInitiationEnabled) {
1531 HostAdapter->SynchronousPermitted = 0xFF;
1532 if (HostAdapter->HostAdapterBusType == BusLogic_EISA_Bus) {
1533 if (ExtendedSetupInformation.Misc.FastOnEISA)
1534 HostAdapter->FastPermitted = 0xFF;
1535 if (strcmp(HostAdapter->ModelName, "BT-757") == 0)
1536 HostAdapter->WidePermitted = 0xFF;
1537 }
1538 }
1539 HostAdapter->DisconnectPermitted = 0xFF;
1540 HostAdapter->ParityCheckingEnabled = SetupInformation.ParityCheckingEnabled;
1541 HostAdapter->BusResetEnabled = true;
1542 }
1543 /*
1544 Determine the maximum number of Target IDs and Logical Units supported by
1545 this driver for Wide and Narrow Host Adapters.
1546 */
1547 HostAdapter->MaxTargetDevices = (HostAdapter->HostWideSCSI ? 16 : 8);
1548 HostAdapter->MaxLogicalUnits = (HostAdapter->ExtendedLUNSupport ? 32 : 8);
1549 /*
1550 Select appropriate values for the Mailbox Count, Driver Queue Depth,
1551 Initial CCBs, and Incremental CCBs variables based on whether or not Strict
1552 Round Robin Mode is supported. If Strict Round Robin Mode is supported,
1553 then there is no performance degradation in using the maximum possible
1554 number of Outgoing and Incoming Mailboxes and allowing the Tagged and
1555 Untagged Queue Depths to determine the actual utilization. If Strict Round
1556 Robin Mode is not supported, then the Host Adapter must scan all the
1557 Outgoing Mailboxes whenever an Outgoing Mailbox entry is made, which can
1558 cause a substantial performance penalty. The host adapters actually have
1559 room to store the following number of CCBs internally; that is, they can
1560 internally queue and manage this many active commands on the SCSI bus
1561 simultaneously. Performance measurements demonstrate that the Driver Queue
1562 Depth should be set to the Mailbox Count, rather than the Host Adapter
1563 Queue Depth (internal CCB capacity), as it is more efficient to have the
1564 queued commands waiting in Outgoing Mailboxes if necessary than to block
1565 the process in the higher levels of the SCSI Subsystem.
1566
1567 192 BT-948/958/958D
1568 100 BT-946C/956C/956CD/747C/757C/757CD/445C
1569 50 BT-545C/540CF
1570 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A
1571 */
1572 if (HostAdapter->FirmwareVersion[0] == '5')
1573 HostAdapter->HostAdapterQueueDepth = 192;
1574 else if (HostAdapter->FirmwareVersion[0] == '4')
1575 HostAdapter->HostAdapterQueueDepth = (HostAdapter->HostAdapterBusType != BusLogic_ISA_Bus ? 100 : 50);
1576 else
1577 HostAdapter->HostAdapterQueueDepth = 30;
1578 if (strcmp(HostAdapter->FirmwareVersion, "3.31") >= 0) {
1579 HostAdapter->StrictRoundRobinModeSupport = true;
1580 HostAdapter->MailboxCount = BusLogic_MaxMailboxes;
1581 } else {
1582 HostAdapter->StrictRoundRobinModeSupport = false;
1583 HostAdapter->MailboxCount = 32;
1584 }
1585 HostAdapter->DriverQueueDepth = HostAdapter->MailboxCount;
1586 HostAdapter->InitialCCBs = 4 * BusLogic_CCB_AllocationGroupSize;
1587 HostAdapter->IncrementalCCBs = BusLogic_CCB_AllocationGroupSize;
1588 /*
1589 Tagged Queuing support is available and operates properly on all "W" series
1590 MultiMaster Host Adapters, on "C" series MultiMaster Host Adapters with
1591 firmware version 4.22 and above, and on "S" series MultiMaster Host
1592 Adapters with firmware version 3.35 and above.
1593 */
1594 HostAdapter->TaggedQueuingPermitted = 0;
1595 switch (HostAdapter->FirmwareVersion[0]) {
1596 case '5':
1597 HostAdapter->TaggedQueuingPermitted = 0xFFFF;
1598 break;
1599 case '4':
1600 if (strcmp(HostAdapter->FirmwareVersion, "4.22") >= 0)
1601 HostAdapter->TaggedQueuingPermitted = 0xFFFF;
1602 break;
1603 case '3':
1604 if (strcmp(HostAdapter->FirmwareVersion, "3.35") >= 0)
1605 HostAdapter->TaggedQueuingPermitted = 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_Address is 0.
1612 */
1613 HostAdapter->BIOS_Address = ExtendedSetupInformation.BIOS_Address << 12;
1614 /*
1615 ISA Host Adapters require Bounce Buffers if there is more than 16MB memory.
1616 */
1617 if (HostAdapter->HostAdapterBusType == BusLogic_ISA_Bus && (void *) high_memory > (void *) MAX_DMA_ADDRESS)
1618 HostAdapter->BounceBuffersRequired = true;
1619 /*
1620 BusLogic BT-445S Host Adapters prior to board revision E have a hardware
1621 bug whereby when the BIOS is enabled, transfers to/from the same address
1622 range the BIOS occupies modulo 16MB are handled incorrectly. Only properly
1623 functioning BT-445S Host Adapters have firmware version 3.37, so require
1624 that ISA Bounce Buffers be used for the buggy BT-445S models if there is
1625 more than 16MB memory.
1626 */
1627 if (HostAdapter->BIOS_Address > 0 && strcmp(HostAdapter->ModelName, "BT-445S") == 0 && strcmp(HostAdapter->FirmwareVersion, "3.37") < 0 && (void *) high_memory > (void *) MAX_DMA_ADDRESS)
1628 HostAdapter->BounceBuffersRequired = true;
1629 /*
1630 Initialize parameters common to MultiMaster and FlashPoint Host Adapters.
1631 */
1632 Common:
1633 /*
1634 Initialize the Host Adapter Full Model Name from the Model Name.
1635 */
1636 strcpy(HostAdapter->FullModelName, "BusLogic ");
1637 strcat(HostAdapter->FullModelName, HostAdapter->ModelName);
1638 /*
1639 Select an appropriate value for the Tagged Queue Depth either from a
1640 BusLogic Driver Options specification, or based on whether this Host
1641 Adapter requires that ISA Bounce Buffers be used. The Tagged Queue Depth
1642 is left at 0 for automatic determination in BusLogic_SelectQueueDepths.
1643 Initialize the Untagged Queue Depth.
1644 */
1645 for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) {
1646 unsigned char QueueDepth = 0;
1647 if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->QueueDepth[TargetID] > 0)
1648 QueueDepth = HostAdapter->DriverOptions->QueueDepth[TargetID];
1649 else if (HostAdapter->BounceBuffersRequired)
1650 QueueDepth = BusLogic_TaggedQueueDepthBB;
1651 HostAdapter->QueueDepth[TargetID] = QueueDepth;
1652 }
1653 if (HostAdapter->BounceBuffersRequired)
1654 HostAdapter->UntaggedQueueDepth = BusLogic_UntaggedQueueDepthBB;
1655 else
1656 HostAdapter->UntaggedQueueDepth = BusLogic_UntaggedQueueDepth;
1657 if (HostAdapter->DriverOptions != NULL)
1658 HostAdapter->CommonQueueDepth = HostAdapter->DriverOptions->CommonQueueDepth;
1659 if (HostAdapter->CommonQueueDepth > 0 && HostAdapter->CommonQueueDepth < HostAdapter->UntaggedQueueDepth)
1660 HostAdapter->UntaggedQueueDepth = HostAdapter->CommonQueueDepth;
1661 /*
1662 Tagged Queuing is only allowed if Disconnect/Reconnect is permitted.
1663 Therefore, mask the Tagged Queuing Permitted Default bits with the
1664 Disconnect/Reconnect Permitted bits.
1665 */
1666 HostAdapter->TaggedQueuingPermitted &= HostAdapter->DisconnectPermitted;
1667 /*
1668 Combine the default Tagged Queuing Permitted bits with any BusLogic Driver
1669 Options Tagged Queuing specification.
1670 */
1671 if (HostAdapter->DriverOptions != NULL)
1672 HostAdapter->TaggedQueuingPermitted =
1673 (HostAdapter->DriverOptions->TaggedQueuingPermitted & HostAdapter->DriverOptions->TaggedQueuingPermittedMask) | (HostAdapter->TaggedQueuingPermitted & ~HostAdapter->DriverOptions->TaggedQueuingPermittedMask);
1674
1675 /*
1676 Select an appropriate value for Bus Settle Time either from a BusLogic
1677 Driver Options specification, or from BusLogic_DefaultBusSettleTime.
1678 */
1679 if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->BusSettleTime > 0)
1680 HostAdapter->BusSettleTime = HostAdapter->DriverOptions->BusSettleTime;
1681 else
1682 HostAdapter->BusSettleTime = BusLogic_DefaultBusSettleTime;
1683 /*
1684 Indicate reading the Host Adapter Configuration completed successfully.
1685 */
1686 return true;
1687}
1688
1689
1690/*
1691 BusLogic_ReportHostAdapterConfiguration reports the configuration of
1692 Host Adapter.
1693*/
1694
1695static bool __init BusLogic_ReportHostAdapterConfiguration(struct BusLogic_HostAdapter
1696 *HostAdapter)
1697{
1698 unsigned short AllTargetsMask = (1 << HostAdapter->MaxTargetDevices) - 1;
1699 unsigned short SynchronousPermitted, FastPermitted;
1700 unsigned short UltraPermitted, WidePermitted;
1701 unsigned short DisconnectPermitted, TaggedQueuingPermitted;
1702 bool CommonSynchronousNegotiation, CommonTaggedQueueDepth;
1703 char SynchronousString[BusLogic_MaxTargetDevices + 1];
1704 char WideString[BusLogic_MaxTargetDevices + 1];
1705 char DisconnectString[BusLogic_MaxTargetDevices + 1];
1706 char TaggedQueuingString[BusLogic_MaxTargetDevices + 1];
1707 char *SynchronousMessage = SynchronousString;
1708 char *WideMessage = WideString;
1709 char *DisconnectMessage = DisconnectString;
1710 char *TaggedQueuingMessage = TaggedQueuingString;
1711 int TargetID;
1712 BusLogic_Info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n",
1713 HostAdapter, HostAdapter->ModelName,
1714 BusLogic_HostAdapterBusNames[HostAdapter->HostAdapterBusType], (HostAdapter->HostWideSCSI ? " Wide" : ""), (HostAdapter->HostDifferentialSCSI ? " Differential" : ""), (HostAdapter->HostUltraSCSI ? " Ultra" : ""));
1715 BusLogic_Info(" Firmware Version: %s, I/O Address: 0x%X, " "IRQ Channel: %d/%s\n", HostAdapter, HostAdapter->FirmwareVersion, HostAdapter->IO_Address, HostAdapter->IRQ_Channel, (HostAdapter->LevelSensitiveInterrupt ? "Level" : "Edge"));
1716 if (HostAdapter->HostAdapterBusType != BusLogic_PCI_Bus) {
1717 BusLogic_Info(" DMA Channel: ", HostAdapter);
1718 if (HostAdapter->DMA_Channel > 0)
1719 BusLogic_Info("%d, ", HostAdapter, HostAdapter->DMA_Channel);
1720 else
1721 BusLogic_Info("None, ", HostAdapter);
1722 if (HostAdapter->BIOS_Address > 0)
1723 BusLogic_Info("BIOS Address: 0x%X, ", HostAdapter, HostAdapter->BIOS_Address);
1724 else
1725 BusLogic_Info("BIOS Address: None, ", HostAdapter);
1726 } else {
1727 BusLogic_Info(" PCI Bus: %d, Device: %d, Address: ", HostAdapter, HostAdapter->Bus, HostAdapter->Device);
1728 if (HostAdapter->PCI_Address > 0)
1729 BusLogic_Info("0x%X, ", HostAdapter, HostAdapter->PCI_Address);
1730 else
1731 BusLogic_Info("Unassigned, ", HostAdapter);
1732 }
1733 BusLogic_Info("Host Adapter SCSI ID: %d\n", HostAdapter, HostAdapter->SCSI_ID);
1734 BusLogic_Info(" Parity Checking: %s, Extended Translation: %s\n", HostAdapter, (HostAdapter->ParityCheckingEnabled ? "Enabled" : "Disabled"), (HostAdapter->ExtendedTranslationEnabled ? "Enabled" : "Disabled"));
1735 AllTargetsMask &= ~(1 << HostAdapter->SCSI_ID);
1736 SynchronousPermitted = HostAdapter->SynchronousPermitted & AllTargetsMask;
1737 FastPermitted = HostAdapter->FastPermitted & AllTargetsMask;
1738 UltraPermitted = HostAdapter->UltraPermitted & AllTargetsMask;
1739 if ((BusLogic_MultiMasterHostAdapterP(HostAdapter) && (HostAdapter->FirmwareVersion[0] >= '4' || HostAdapter->HostAdapterBusType == BusLogic_EISA_Bus)) || BusLogic_FlashPointHostAdapterP(HostAdapter)) {
1740 CommonSynchronousNegotiation = false;
1741 if (SynchronousPermitted == 0) {
1742 SynchronousMessage = "Disabled";
1743 CommonSynchronousNegotiation = true;
1744 } else if (SynchronousPermitted == AllTargetsMask) {
1745 if (FastPermitted == 0) {
1746 SynchronousMessage = "Slow";
1747 CommonSynchronousNegotiation = true;
1748 } else if (FastPermitted == AllTargetsMask) {
1749 if (UltraPermitted == 0) {
1750 SynchronousMessage = "Fast";
1751 CommonSynchronousNegotiation = true;
1752 } else if (UltraPermitted == AllTargetsMask) {
1753 SynchronousMessage = "Ultra";
1754 CommonSynchronousNegotiation = true;
1755 }
1756 }
1757 }
1758 if (!CommonSynchronousNegotiation) {
1759 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
1760 SynchronousString[TargetID] = ((!(SynchronousPermitted & (1 << TargetID))) ? 'N' : (!(FastPermitted & (1 << TargetID)) ? 'S' : (!(UltraPermitted & (1 << TargetID)) ? 'F' : 'U')));
1761 SynchronousString[HostAdapter->SCSI_ID] = '#';
1762 SynchronousString[HostAdapter->MaxTargetDevices] = '\0';
1763 }
1764 } else
1765 SynchronousMessage = (SynchronousPermitted == 0 ? "Disabled" : "Enabled");
1766 WidePermitted = HostAdapter->WidePermitted & AllTargetsMask;
1767 if (WidePermitted == 0)
1768 WideMessage = "Disabled";
1769 else if (WidePermitted == AllTargetsMask)
1770 WideMessage = "Enabled";
1771 else {
1772 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
1773 WideString[TargetID] = ((WidePermitted & (1 << TargetID)) ? 'Y' : 'N');
1774 WideString[HostAdapter->SCSI_ID] = '#';
1775 WideString[HostAdapter->MaxTargetDevices] = '\0';
1776 }
1777 DisconnectPermitted = HostAdapter->DisconnectPermitted & AllTargetsMask;
1778 if (DisconnectPermitted == 0)
1779 DisconnectMessage = "Disabled";
1780 else if (DisconnectPermitted == AllTargetsMask)
1781 DisconnectMessage = "Enabled";
1782 else {
1783 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
1784 DisconnectString[TargetID] = ((DisconnectPermitted & (1 << TargetID)) ? 'Y' : 'N');
1785 DisconnectString[HostAdapter->SCSI_ID] = '#';
1786 DisconnectString[HostAdapter->MaxTargetDevices] = '\0';
1787 }
1788 TaggedQueuingPermitted = HostAdapter->TaggedQueuingPermitted & AllTargetsMask;
1789 if (TaggedQueuingPermitted == 0)
1790 TaggedQueuingMessage = "Disabled";
1791 else if (TaggedQueuingPermitted == AllTargetsMask)
1792 TaggedQueuingMessage = "Enabled";
1793 else {
1794 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
1795 TaggedQueuingString[TargetID] = ((TaggedQueuingPermitted & (1 << TargetID)) ? 'Y' : 'N');
1796 TaggedQueuingString[HostAdapter->SCSI_ID] = '#';
1797 TaggedQueuingString[HostAdapter->MaxTargetDevices] = '\0';
1798 }
1799 BusLogic_Info(" Synchronous Negotiation: %s, Wide Negotiation: %s\n", HostAdapter, SynchronousMessage, WideMessage);
1800 BusLogic_Info(" Disconnect/Reconnect: %s, Tagged Queuing: %s\n", HostAdapter, DisconnectMessage, TaggedQueuingMessage);
1801 if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) {
1802 BusLogic_Info(" Scatter/Gather Limit: %d of %d segments, " "Mailboxes: %d\n", HostAdapter, HostAdapter->DriverScatterGatherLimit, HostAdapter->HostAdapterScatterGatherLimit, HostAdapter->MailboxCount);
1803 BusLogic_Info(" Driver Queue Depth: %d, " "Host Adapter Queue Depth: %d\n", HostAdapter, HostAdapter->DriverQueueDepth, HostAdapter->HostAdapterQueueDepth);
1804 } else
1805 BusLogic_Info(" Driver Queue Depth: %d, " "Scatter/Gather Limit: %d segments\n", HostAdapter, HostAdapter->DriverQueueDepth, HostAdapter->DriverScatterGatherLimit);
1806 BusLogic_Info(" Tagged Queue Depth: ", HostAdapter);
1807 CommonTaggedQueueDepth = true;
1808 for (TargetID = 1; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
1809 if (HostAdapter->QueueDepth[TargetID] != HostAdapter->QueueDepth[0]) {
1810 CommonTaggedQueueDepth = false;
1811 break;
1812 }
1813 if (CommonTaggedQueueDepth) {
1814 if (HostAdapter->QueueDepth[0] > 0)
1815 BusLogic_Info("%d", HostAdapter, HostAdapter->QueueDepth[0]);
1816 else
1817 BusLogic_Info("Automatic", HostAdapter);
1818 } else
1819 BusLogic_Info("Individual", HostAdapter);
1820 BusLogic_Info(", Untagged Queue Depth: %d\n", HostAdapter, HostAdapter->UntaggedQueueDepth);
1821 if (HostAdapter->TerminationInfoValid) {
1822 if (HostAdapter->HostWideSCSI)
1823 BusLogic_Info(" SCSI Bus Termination: %s", HostAdapter, (HostAdapter->LowByteTerminated ? (HostAdapter->HighByteTerminated ? "Both Enabled" : "Low Enabled")
1824 : (HostAdapter->HighByteTerminated ? "High Enabled" : "Both Disabled")));
1825 else
1826 BusLogic_Info(" SCSI Bus Termination: %s", HostAdapter, (HostAdapter->LowByteTerminated ? "Enabled" : "Disabled"));
1827 if (HostAdapter->HostSupportsSCAM)
1828 BusLogic_Info(", SCAM: %s", HostAdapter, (HostAdapter->SCAM_Enabled ? (HostAdapter->SCAM_Level2 ? "Enabled, Level 2" : "Enabled, Level 1")
1829 : "Disabled"));
1830 BusLogic_Info("\n", HostAdapter);
1831 }
1832 /*
1833 Indicate reporting the Host Adapter configuration completed successfully.
1834 */
1835 return true;
1836}
1837
1838
1839/*
1840 BusLogic_AcquireResources acquires the system resources necessary to use
1841 Host Adapter.
1842*/
1843
1844static bool __init BusLogic_AcquireResources(struct BusLogic_HostAdapter *HostAdapter)
1845{
1846 if (HostAdapter->IRQ_Channel == 0) {
1847 BusLogic_Error("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n", HostAdapter);
1848 return false;
1849 }
1850 /*
1851 Acquire shared access to the IRQ Channel.
1852 */
1853 if (request_irq(HostAdapter->IRQ_Channel, BusLogic_InterruptHandler, IRQF_SHARED, HostAdapter->FullModelName, HostAdapter) < 0) {
1854 BusLogic_Error("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n", HostAdapter, HostAdapter->IRQ_Channel);
1855 return false;
1856 }
1857 HostAdapter->IRQ_ChannelAcquired = true;
1858 /*
1859 Acquire exclusive access to the DMA Channel.
1860 */
1861 if (HostAdapter->DMA_Channel > 0) {
1862 if (request_dma(HostAdapter->DMA_Channel, HostAdapter->FullModelName) < 0) {
1863 BusLogic_Error("UNABLE TO ACQUIRE DMA CHANNEL %d - DETACHING\n", HostAdapter, HostAdapter->DMA_Channel);
1864 return false;
1865 }
1866 set_dma_mode(HostAdapter->DMA_Channel, DMA_MODE_CASCADE);
1867 enable_dma(HostAdapter->DMA_Channel);
1868 HostAdapter->DMA_ChannelAcquired = true;
1869 }
1870 /*
1871 Indicate the System Resource Acquisition completed successfully,
1872 */
1873 return true;
1874}
1875
1876
1877/*
1878 BusLogic_ReleaseResources releases any system resources previously acquired
1879 by BusLogic_AcquireResources.
1880*/
1881
1882static void BusLogic_ReleaseResources(struct BusLogic_HostAdapter *HostAdapter)
1883{
1884 /*
1885 Release shared access to the IRQ Channel.
1886 */
1887 if (HostAdapter->IRQ_ChannelAcquired)
1888 free_irq(HostAdapter->IRQ_Channel, HostAdapter);
1889 /*
1890 Release exclusive access to the DMA Channel.
1891 */
1892 if (HostAdapter->DMA_ChannelAcquired)
1893 free_dma(HostAdapter->DMA_Channel);
1894 /*
1895 Release any allocated memory structs not released elsewhere
1896 */
1897 if (HostAdapter->MailboxSpace)
1898 pci_free_consistent(HostAdapter->PCI_Device, HostAdapter->MailboxSize, HostAdapter->MailboxSpace, HostAdapter->MailboxSpaceHandle);
1899 pci_dev_put(HostAdapter->PCI_Device);
1900 HostAdapter->MailboxSpace = NULL;
1901 HostAdapter->MailboxSpaceHandle = 0;
1902 HostAdapter->MailboxSize = 0;
1903}
1904
1905
1906/*
1907 BusLogic_InitializeHostAdapter initializes Host Adapter. This is the only
1908 function called during SCSI Host Adapter detection which modifies the state
1909 of the Host Adapter from its initial power on or hard reset state.
1910*/
1911
1912static bool BusLogic_InitializeHostAdapter(struct BusLogic_HostAdapter
1913 *HostAdapter)
1914{
1915 struct BusLogic_ExtendedMailboxRequest ExtendedMailboxRequest;
1916 enum BusLogic_RoundRobinModeRequest RoundRobinModeRequest;
1917 enum BusLogic_SetCCBFormatRequest SetCCBFormatRequest;
1918 int TargetID;
1919 /*
1920 Initialize the pointers to the first and last CCBs that are queued for
1921 completion processing.
1922 */
1923 HostAdapter->FirstCompletedCCB = NULL;
1924 HostAdapter->LastCompletedCCB = NULL;
1925 /*
1926 Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active,
1927 Command Successful Flag, Active Commands, and Commands Since Reset
1928 for each Target Device.
1929 */
1930 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
1931 HostAdapter->BusDeviceResetPendingCCB[TargetID] = NULL;
1932 HostAdapter->TargetFlags[TargetID].TaggedQueuingActive = false;
1933 HostAdapter->TargetFlags[TargetID].CommandSuccessfulFlag = false;
1934 HostAdapter->ActiveCommands[TargetID] = 0;
1935 HostAdapter->CommandsSinceReset[TargetID] = 0;
1936 }
1937 /*
1938 FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes.
1939 */
1940 if (BusLogic_FlashPointHostAdapterP(HostAdapter))
1941 goto Done;
1942 /*
1943 Initialize the Outgoing and Incoming Mailbox pointers.
1944 */
1945 HostAdapter->MailboxSize = HostAdapter->MailboxCount * (sizeof(struct BusLogic_OutgoingMailbox) + sizeof(struct BusLogic_IncomingMailbox));
1946 HostAdapter->MailboxSpace = pci_alloc_consistent(HostAdapter->PCI_Device, HostAdapter->MailboxSize, &HostAdapter->MailboxSpaceHandle);
1947 if (HostAdapter->MailboxSpace == NULL)
1948 return BusLogic_Failure(HostAdapter, "MAILBOX ALLOCATION");
1949 HostAdapter->FirstOutgoingMailbox = (struct BusLogic_OutgoingMailbox *) HostAdapter->MailboxSpace;
1950 HostAdapter->LastOutgoingMailbox = HostAdapter->FirstOutgoingMailbox + HostAdapter->MailboxCount - 1;
1951 HostAdapter->NextOutgoingMailbox = HostAdapter->FirstOutgoingMailbox;
1952 HostAdapter->FirstIncomingMailbox = (struct BusLogic_IncomingMailbox *) (HostAdapter->LastOutgoingMailbox + 1);
1953 HostAdapter->LastIncomingMailbox = HostAdapter->FirstIncomingMailbox + HostAdapter->MailboxCount - 1;
1954 HostAdapter->NextIncomingMailbox = HostAdapter->FirstIncomingMailbox;
1955
1956 /*
1957 Initialize the Outgoing and Incoming Mailbox structures.
1958 */
1959 memset(HostAdapter->FirstOutgoingMailbox, 0, HostAdapter->MailboxCount * sizeof(struct BusLogic_OutgoingMailbox));
1960 memset(HostAdapter->FirstIncomingMailbox, 0, HostAdapter->MailboxCount * sizeof(struct BusLogic_IncomingMailbox));
1961 /*
1962 Initialize the Host Adapter's Pointer to the Outgoing/Incoming Mailboxes.
1963 */
1964 ExtendedMailboxRequest.MailboxCount = HostAdapter->MailboxCount;
1965 ExtendedMailboxRequest.BaseMailboxAddress = (u32) HostAdapter->MailboxSpaceHandle;
1966 if (BusLogic_Command(HostAdapter, BusLogic_InitializeExtendedMailbox, &ExtendedMailboxRequest, sizeof(ExtendedMailboxRequest), NULL, 0) < 0)
1967 return BusLogic_Failure(HostAdapter, "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 Outgoing
1971 Mailbox for each new command, rather than scanning through all the
1972 Outgoing Mailboxes to find any that have new commands in them. Strict
1973 Round Robin Mode is significantly more efficient.
1974 */
1975 if (HostAdapter->StrictRoundRobinModeSupport) {
1976 RoundRobinModeRequest = BusLogic_StrictRoundRobinMode;
1977 if (BusLogic_Command(HostAdapter, BusLogic_EnableStrictRoundRobinMode, &RoundRobinModeRequest, sizeof(RoundRobinModeRequest), NULL, 0) < 0)
1978 return BusLogic_Failure(HostAdapter, "ENABLE STRICT ROUND ROBIN MODE");
1979 }
1980 /*
1981 For Host Adapters that support Extended LUN Format CCBs, issue the Set CCB
1982 Format command to allow 32 Logical Units per Target Device.
1983 */
1984 if (HostAdapter->ExtendedLUNSupport) {
1985 SetCCBFormatRequest = BusLogic_ExtendedLUNFormatCCB;
1986 if (BusLogic_Command(HostAdapter, BusLogic_SetCCBFormat, &SetCCBFormatRequest, sizeof(SetCCBFormatRequest), NULL, 0) < 0)
1987 return BusLogic_Failure(HostAdapter, "SET CCB FORMAT");
1988 }
1989 /*
1990 Announce Successful Initialization.
1991 */
1992 Done:
1993 if (!HostAdapter->HostAdapterInitialized) {
1994 BusLogic_Info("*** %s Initialized Successfully ***\n", HostAdapter, HostAdapter->FullModelName);
1995 BusLogic_Info("\n", HostAdapter);
1996 } else
1997 BusLogic_Warning("*** %s Initialized Successfully ***\n", HostAdapter, HostAdapter->FullModelName);
1998 HostAdapter->HostAdapterInitialized = true;
1999 /*
2000 Indicate the Host Adapter Initialization completed successfully.
2001 */
2002 return true;
2003}
2004
2005
2006/*
2007 BusLogic_TargetDeviceInquiry inquires about the Target Devices accessible
2008 through Host Adapter.
2009*/
2010
2011static bool __init BusLogic_TargetDeviceInquiry(struct BusLogic_HostAdapter
2012 *HostAdapter)
2013{
2014 u16 InstalledDevices;
2015 u8 InstalledDevicesID0to7[8];
2016 struct BusLogic_SetupInformation SetupInformation;
2017 u8 SynchronousPeriod[BusLogic_MaxTargetDevices];
2018 unsigned char RequestedReplyLength;
2019 int TargetID;
2020 /*
2021 Wait a few seconds between the Host Adapter Hard Reset which initiates
2022 a SCSI Bus Reset and issuing any SCSI Commands. Some SCSI devices get
2023 confused if they receive SCSI Commands too soon after a SCSI Bus Reset.
2024 */
2025 BusLogic_Delay(HostAdapter->BusSettleTime);
2026 /*
2027 FlashPoint Host Adapters do not provide for Target Device Inquiry.
2028 */
2029 if (BusLogic_FlashPointHostAdapterP(HostAdapter))
2030 return true;
2031 /*
2032 Inhibit the Target Device Inquiry if requested.
2033 */
2034 if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->LocalOptions.InhibitTargetInquiry)
2035 return true;
2036 /*
2037 Issue the Inquire Target Devices command for host adapters with firmware
2038 version 4.25 or later, or the Inquire Installed Devices ID 0 to 7 command
2039 for older host adapters. This is necessary to force Synchronous Transfer
2040 Negotiation so that the Inquire Setup Information and Inquire Synchronous
2041 Period commands will return valid data. The Inquire Target Devices command
2042 is preferable to Inquire Installed Devices ID 0 to 7 since it only probes
2043 Logical Unit 0 of each Target Device.
2044 */
2045 if (strcmp(HostAdapter->FirmwareVersion, "4.25") >= 0) {
2046
2047 /*
2048 * Issue a Inquire Target Devices command. Inquire Target Devices only
2049 * tests Logical Unit 0 of each Target Device unlike the Inquire Installed
2050 * Devices commands which test Logical Units 0 - 7. Two bytes are
2051 * returned, where byte 0 bit 0 set indicates that Target Device 0 exists,
2052 * and so on.
2053 */
2054
2055 if (BusLogic_Command(HostAdapter, BusLogic_InquireTargetDevices, NULL, 0, &InstalledDevices, sizeof(InstalledDevices))
2056 != sizeof(InstalledDevices))
2057 return BusLogic_Failure(HostAdapter, "INQUIRE TARGET DEVICES");
2058 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2059 HostAdapter->TargetFlags[TargetID].TargetExists = (InstalledDevices & (1 << TargetID) ? true : false);
2060 } else {
2061
2062 /*
2063 * Issue an Inquire Installed Devices command. For each Target Device,
2064 * a byte is returned where bit 0 set indicates that Logical Unit 0
2065 * exists, bit 1 set indicates that Logical Unit 1 exists, and so on.
2066 */
2067
2068 if (BusLogic_Command(HostAdapter, BusLogic_InquireInstalledDevicesID0to7, NULL, 0, &InstalledDevicesID0to7, sizeof(InstalledDevicesID0to7))
2069 != sizeof(InstalledDevicesID0to7))
2070 return BusLogic_Failure(HostAdapter, "INQUIRE INSTALLED DEVICES ID 0 TO 7");
2071 for (TargetID = 0; TargetID < 8; TargetID++)
2072 HostAdapter->TargetFlags[TargetID].TargetExists = (InstalledDevicesID0to7[TargetID] != 0 ? true : false);
2073 }
2074 /*
2075 Issue the Inquire Setup Information command.
2076 */
2077 RequestedReplyLength = sizeof(SetupInformation);
2078 if (BusLogic_Command(HostAdapter, BusLogic_InquireSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &SetupInformation, sizeof(SetupInformation))
2079 != sizeof(SetupInformation))
2080 return BusLogic_Failure(HostAdapter, "INQUIRE SETUP INFORMATION");
2081 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2082 HostAdapter->SynchronousOffset[TargetID] = (TargetID < 8 ? SetupInformation.SynchronousValuesID0to7[TargetID].Offset : SetupInformation.SynchronousValuesID8to15[TargetID - 8].Offset);
2083 if (strcmp(HostAdapter->FirmwareVersion, "5.06L") >= 0)
2084 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2085 HostAdapter->TargetFlags[TargetID].WideTransfersActive = (TargetID < 8 ? (SetupInformation.WideTransfersActiveID0to7 & (1 << TargetID)
2086 ? true : false)
2087 : (SetupInformation.WideTransfersActiveID8to15 & (1 << (TargetID - 8))
2088 ? true : false));
2089 /*
2090 Issue the Inquire Synchronous Period command.
2091 */
2092 if (HostAdapter->FirmwareVersion[0] >= '3') {
2093
2094 /* Issue a Inquire Synchronous Period command. For each Target Device,
2095 * a byte is returned which represents the Synchronous Transfer Period
2096 * in units of 10 nanoseconds.
2097 */
2098
2099 RequestedReplyLength = sizeof(SynchronousPeriod);
2100 if (BusLogic_Command(HostAdapter, BusLogic_InquireSynchronousPeriod, &RequestedReplyLength, sizeof(RequestedReplyLength), &SynchronousPeriod, sizeof(SynchronousPeriod))
2101 != sizeof(SynchronousPeriod))
2102 return BusLogic_Failure(HostAdapter, "INQUIRE SYNCHRONOUS PERIOD");
2103 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2104 HostAdapter->SynchronousPeriod[TargetID] = SynchronousPeriod[TargetID];
2105 } else
2106 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2107 if (SetupInformation.SynchronousValuesID0to7[TargetID].Offset > 0)
2108 HostAdapter->SynchronousPeriod[TargetID] = 20 + 5 * SetupInformation.SynchronousValuesID0to7[TargetID]
2109 .TransferPeriod;
2110 /*
2111 Indicate the Target Device Inquiry completed successfully.
2112 */
2113 return true;
2114}
2115
2116/*
2117 BusLogic_InitializeHostStructure initializes the fields in the SCSI Host
2118 structure. The base, io_port, n_io_ports, irq, and dma_channel fields in the
2119 SCSI Host structure are intentionally left uninitialized, as this driver
2120 handles acquisition and release of these resources explicitly, as well as
2121 ensuring exclusive access to the Host Adapter hardware and data structures
2122 through explicit acquisition and release of the Host Adapter's Lock.
2123*/
2124
2125static void __init BusLogic_InitializeHostStructure(struct BusLogic_HostAdapter
2126 *HostAdapter, struct Scsi_Host *Host)
2127{
2128 Host->max_id = HostAdapter->MaxTargetDevices;
2129 Host->max_lun = HostAdapter->MaxLogicalUnits;
2130 Host->max_channel = 0;
2131 Host->unique_id = HostAdapter->IO_Address;
2132 Host->this_id = HostAdapter->SCSI_ID;
2133 Host->can_queue = HostAdapter->DriverQueueDepth;
2134 Host->sg_tablesize = HostAdapter->DriverScatterGatherLimit;
2135 Host->unchecked_isa_dma = HostAdapter->BounceBuffersRequired;
2136 Host->cmd_per_lun = HostAdapter->UntaggedQueueDepth;
2137}
2138
2139/*
2140 BusLogic_SlaveConfigure will actually set the queue depth on individual
2141 scsi devices as they are permanently added to the device chain. We
2142 shamelessly rip off the SelectQueueDepths code to make this work mostly
2143 like it used to. Since we don't get called once at the end of the scan
2144 but instead get called for each device, we have to do things a bit
2145 differently.
2146*/
2147static int BusLogic_SlaveConfigure(struct scsi_device *Device)
2148{
2149 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Device->host->hostdata;
2150 int TargetID = Device->id;
2151 int QueueDepth = HostAdapter->QueueDepth[TargetID];
2152
2153 if (HostAdapter->TargetFlags[TargetID].TaggedQueuingSupported && (HostAdapter->TaggedQueuingPermitted & (1 << TargetID))) {
2154 if (QueueDepth == 0)
2155 QueueDepth = BusLogic_MaxAutomaticTaggedQueueDepth;
2156 HostAdapter->QueueDepth[TargetID] = QueueDepth;
2157 scsi_adjust_queue_depth(Device, MSG_SIMPLE_TAG, QueueDepth);
2158 } else {
2159 HostAdapter->TaggedQueuingPermitted &= ~(1 << TargetID);
2160 QueueDepth = HostAdapter->UntaggedQueueDepth;
2161 HostAdapter->QueueDepth[TargetID] = QueueDepth;
2162 scsi_adjust_queue_depth(Device, 0, QueueDepth);
2163 }
2164 QueueDepth = 0;
2165 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++)
2166 if (HostAdapter->TargetFlags[TargetID].TargetExists) {
2167 QueueDepth += HostAdapter->QueueDepth[TargetID];
2168 }
2169 if (QueueDepth > HostAdapter->AllocatedCCBs)
2170 BusLogic_CreateAdditionalCCBs(HostAdapter, QueueDepth - HostAdapter->AllocatedCCBs, false);
2171 return 0;
2172}
2173
2174/*
2175 BusLogic_DetectHostAdapter probes for BusLogic Host Adapters at the standard
2176 I/O Addresses where they may be located, initializing, registering, and
2177 reporting the configuration of each BusLogic Host Adapter it finds. It
2178 returns the number of BusLogic Host Adapters successfully initialized and
2179 registered.
2180*/
2181
2182static int __init BusLogic_init(void)
2183{
2184 int BusLogicHostAdapterCount = 0, DriverOptionsIndex = 0, ProbeIndex;
2185 struct BusLogic_HostAdapter *PrototypeHostAdapter;
2186 int ret = 0;
2187
2188#ifdef MODULE
2189 if (BusLogic)
2190 BusLogic_Setup(BusLogic);
2191#endif
2192
2193 if (BusLogic_ProbeOptions.NoProbe)
2194 return -ENODEV;
2195 BusLogic_ProbeInfoList =
2196 kzalloc(BusLogic_MaxHostAdapters * sizeof(struct BusLogic_ProbeInfo), GFP_KERNEL);
2197 if (BusLogic_ProbeInfoList == NULL) {
2198 BusLogic_Error("BusLogic: Unable to allocate Probe Info List\n", NULL);
2199 return -ENOMEM;
2200 }
2201
2202 PrototypeHostAdapter =
2203 kzalloc(sizeof(struct BusLogic_HostAdapter), GFP_KERNEL);
2204 if (PrototypeHostAdapter == NULL) {
2205 kfree(BusLogic_ProbeInfoList);
2206 BusLogic_Error("BusLogic: Unable to allocate Prototype " "Host Adapter\n", NULL);
2207 return -ENOMEM;
2208 }
2209
2210#ifdef MODULE
2211 if (BusLogic != NULL)
2212 BusLogic_Setup(BusLogic);
2213#endif
2214 BusLogic_InitializeProbeInfoList(PrototypeHostAdapter);
2215 for (ProbeIndex = 0; ProbeIndex < BusLogic_ProbeInfoCount; ProbeIndex++) {
2216 struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[ProbeIndex];
2217 struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter;
2218 struct Scsi_Host *Host;
2219 if (ProbeInfo->IO_Address == 0)
2220 continue;
2221 memset(HostAdapter, 0, sizeof(struct BusLogic_HostAdapter));
2222 HostAdapter->HostAdapterType = ProbeInfo->HostAdapterType;
2223 HostAdapter->HostAdapterBusType = ProbeInfo->HostAdapterBusType;
2224 HostAdapter->IO_Address = ProbeInfo->IO_Address;
2225 HostAdapter->PCI_Address = ProbeInfo->PCI_Address;
2226 HostAdapter->Bus = ProbeInfo->Bus;
2227 HostAdapter->Device = ProbeInfo->Device;
2228 HostAdapter->PCI_Device = ProbeInfo->PCI_Device;
2229 HostAdapter->IRQ_Channel = ProbeInfo->IRQ_Channel;
2230 HostAdapter->AddressCount = BusLogic_HostAdapterAddressCount[HostAdapter->HostAdapterType];
2231
2232 /*
2233 Make sure region is free prior to probing.
2234 */
2235 if (!request_region(HostAdapter->IO_Address, HostAdapter->AddressCount,
2236 "BusLogic"))
2237 continue;
2238 /*
2239 Probe the Host Adapter. If unsuccessful, abort further initialization.
2240 */
2241 if (!BusLogic_ProbeHostAdapter(HostAdapter)) {
2242 release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
2243 continue;
2244 }
2245 /*
2246 Hard Reset the Host Adapter. If unsuccessful, abort further
2247 initialization.
2248 */
2249 if (!BusLogic_HardwareResetHostAdapter(HostAdapter, true)) {
2250 release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
2251 continue;
2252 }
2253 /*
2254 Check the Host Adapter. If unsuccessful, abort further initialization.
2255 */
2256 if (!BusLogic_CheckHostAdapter(HostAdapter)) {
2257 release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
2258 continue;
2259 }
2260 /*
2261 Initialize the Driver Options field if provided.
2262 */
2263 if (DriverOptionsIndex < BusLogic_DriverOptionsCount)
2264 HostAdapter->DriverOptions = &BusLogic_DriverOptions[DriverOptionsIndex++];
2265 /*
2266 Announce the Driver Version and Date, Author's Name, Copyright Notice,
2267 and Electronic Mail Address.
2268 */
2269 BusLogic_AnnounceDriver(HostAdapter);
2270 /*
2271 Register the SCSI Host structure.
2272 */
2273
2274 Host = scsi_host_alloc(&Bus_Logic_template, sizeof(struct BusLogic_HostAdapter));
2275 if (Host == NULL) {
2276 release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
2277 continue;
2278 }
2279 HostAdapter = (struct BusLogic_HostAdapter *) Host->hostdata;
2280 memcpy(HostAdapter, PrototypeHostAdapter, sizeof(struct BusLogic_HostAdapter));
2281 HostAdapter->SCSI_Host = Host;
2282 HostAdapter->HostNumber = Host->host_no;
2283 /*
2284 Add Host Adapter to the end of the list of registered BusLogic
2285 Host Adapters.
2286 */
2287 list_add_tail(&HostAdapter->host_list, &BusLogic_host_list);
2288
2289 /*
2290 Read the Host Adapter Configuration, Configure the Host Adapter,
2291 Acquire the System Resources necessary to use the Host Adapter, then
2292 Create the Initial CCBs, Initialize the Host Adapter, and finally
2293 perform Target Device Inquiry.
2294
2295 From this point onward, any failure will be assumed to be due to a
2296 problem with the Host Adapter, rather than due to having mistakenly
2297 identified this port as belonging to a BusLogic Host Adapter. The
2298 I/O Address range will not be released, thereby preventing it from
2299 being incorrectly identified as any other type of Host Adapter.
2300 */
2301 if (BusLogic_ReadHostAdapterConfiguration(HostAdapter) &&
2302 BusLogic_ReportHostAdapterConfiguration(HostAdapter) &&
2303 BusLogic_AcquireResources(HostAdapter) &&
2304 BusLogic_CreateInitialCCBs(HostAdapter) &&
2305 BusLogic_InitializeHostAdapter(HostAdapter) &&
2306 BusLogic_TargetDeviceInquiry(HostAdapter)) {
2307 /*
2308 Initialization has been completed successfully. Release and
2309 re-register usage of the I/O Address range so that the Model
2310 Name of the Host Adapter will appear, and initialize the SCSI
2311 Host structure.
2312 */
2313 release_region(HostAdapter->IO_Address,
2314 HostAdapter->AddressCount);
2315 if (!request_region(HostAdapter->IO_Address,
2316 HostAdapter->AddressCount,
2317 HostAdapter->FullModelName)) {
2318 printk(KERN_WARNING
2319 "BusLogic: Release and re-register of "
2320 "port 0x%04lx failed \n",
2321 (unsigned long)HostAdapter->IO_Address);
2322 BusLogic_DestroyCCBs(HostAdapter);
2323 BusLogic_ReleaseResources(HostAdapter);
2324 list_del(&HostAdapter->host_list);
2325 scsi_host_put(Host);
2326 ret = -ENOMEM;
2327 } else {
2328 BusLogic_InitializeHostStructure(HostAdapter,
2329 Host);
2330 if (scsi_add_host(Host, HostAdapter->PCI_Device
2331 ? &HostAdapter->PCI_Device->dev
2332 : NULL)) {
2333 printk(KERN_WARNING
2334 "BusLogic: scsi_add_host()"
2335 "failed!\n");
2336 BusLogic_DestroyCCBs(HostAdapter);
2337 BusLogic_ReleaseResources(HostAdapter);
2338 list_del(&HostAdapter->host_list);
2339 scsi_host_put(Host);
2340 ret = -ENODEV;
2341 } else {
2342 scsi_scan_host(Host);
2343 BusLogicHostAdapterCount++;
2344 }
2345 }
2346 } else {
2347 /*
2348 An error occurred during Host Adapter Configuration Querying, Host
2349 Adapter Configuration, Resource Acquisition, CCB Creation, Host
2350 Adapter Initialization, or Target Device Inquiry, so remove Host
2351 Adapter from the list of registered BusLogic Host Adapters, destroy
2352 the CCBs, Release the System Resources, and Unregister the SCSI
2353 Host.
2354 */
2355 BusLogic_DestroyCCBs(HostAdapter);
2356 BusLogic_ReleaseResources(HostAdapter);
2357 list_del(&HostAdapter->host_list);
2358 scsi_host_put(Host);
2359 ret = -ENODEV;
2360 }
2361 }
2362 kfree(PrototypeHostAdapter);
2363 kfree(BusLogic_ProbeInfoList);
2364 BusLogic_ProbeInfoList = NULL;
2365 return ret;
2366}
2367
2368
2369/*
2370 BusLogic_ReleaseHostAdapter releases all resources previously acquired to
2371 support a specific Host Adapter, including the I/O Address range, and
2372 unregisters the BusLogic Host Adapter.
2373*/
2374
2375static int __exit BusLogic_ReleaseHostAdapter(struct BusLogic_HostAdapter *HostAdapter)
2376{
2377 struct Scsi_Host *Host = HostAdapter->SCSI_Host;
2378
2379 scsi_remove_host(Host);
2380
2381 /*
2382 FlashPoint Host Adapters must first be released by the FlashPoint
2383 SCCB Manager.
2384 */
2385 if (BusLogic_FlashPointHostAdapterP(HostAdapter))
2386 FlashPoint_ReleaseHostAdapter(HostAdapter->CardHandle);
2387 /*
2388 Destroy the CCBs and release any system resources acquired to
2389 support Host Adapter.
2390 */
2391 BusLogic_DestroyCCBs(HostAdapter);
2392 BusLogic_ReleaseResources(HostAdapter);
2393 /*
2394 Release usage of the I/O Address range.
2395 */
2396 release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
2397 /*
2398 Remove Host Adapter from the list of registered BusLogic Host Adapters.
2399 */
2400 list_del(&HostAdapter->host_list);
2401
2402 scsi_host_put(Host);
2403 return 0;
2404}
2405
2406
2407/*
2408 BusLogic_QueueCompletedCCB queues CCB for completion processing.
2409*/
2410
2411static void BusLogic_QueueCompletedCCB(struct BusLogic_CCB *CCB)
2412{
2413 struct BusLogic_HostAdapter *HostAdapter = CCB->HostAdapter;
2414 CCB->Status = BusLogic_CCB_Completed;
2415 CCB->Next = NULL;
2416 if (HostAdapter->FirstCompletedCCB == NULL) {
2417 HostAdapter->FirstCompletedCCB = CCB;
2418 HostAdapter->LastCompletedCCB = CCB;
2419 } else {
2420 HostAdapter->LastCompletedCCB->Next = CCB;
2421 HostAdapter->LastCompletedCCB = CCB;
2422 }
2423 HostAdapter->ActiveCommands[CCB->TargetID]--;
2424}
2425
2426
2427/*
2428 BusLogic_ComputeResultCode computes a SCSI Subsystem Result Code from
2429 the Host Adapter Status and Target Device Status.
2430*/
2431
2432static int BusLogic_ComputeResultCode(struct BusLogic_HostAdapter *HostAdapter, enum BusLogic_HostAdapterStatus HostAdapterStatus, enum BusLogic_TargetDeviceStatus TargetDeviceStatus)
2433{
2434 int HostStatus;
2435 switch (HostAdapterStatus) {
2436 case BusLogic_CommandCompletedNormally:
2437 case BusLogic_LinkedCommandCompleted:
2438 case BusLogic_LinkedCommandCompletedWithFlag:
2439 HostStatus = DID_OK;
2440 break;
2441 case BusLogic_SCSISelectionTimeout:
2442 HostStatus = DID_TIME_OUT;
2443 break;
2444 case BusLogic_InvalidOutgoingMailboxActionCode:
2445 case BusLogic_InvalidCommandOperationCode:
2446 case BusLogic_InvalidCommandParameter:
2447 BusLogic_Warning("BusLogic Driver Protocol Error 0x%02X\n", HostAdapter, HostAdapterStatus);
2448 case BusLogic_DataUnderRun:
2449 case BusLogic_DataOverRun:
2450 case BusLogic_UnexpectedBusFree:
2451 case BusLogic_LinkedCCBhasInvalidLUN:
2452 case BusLogic_AutoRequestSenseFailed:
2453 case BusLogic_TaggedQueuingMessageRejected:
2454 case BusLogic_UnsupportedMessageReceived:
2455 case BusLogic_HostAdapterHardwareFailed:
2456 case BusLogic_TargetDeviceReconnectedImproperly:
2457 case BusLogic_AbortQueueGenerated:
2458 case BusLogic_HostAdapterSoftwareError:
2459 case BusLogic_HostAdapterHardwareTimeoutError:
2460 case BusLogic_SCSIParityErrorDetected:
2461 HostStatus = DID_ERROR;
2462 break;
2463 case BusLogic_InvalidBusPhaseRequested:
2464 case BusLogic_TargetFailedResponseToATN:
2465 case BusLogic_HostAdapterAssertedRST:
2466 case BusLogic_OtherDeviceAssertedRST:
2467 case BusLogic_HostAdapterAssertedBusDeviceReset:
2468 HostStatus = DID_RESET;
2469 break;
2470 default:
2471 BusLogic_Warning("Unknown Host Adapter Status 0x%02X\n", HostAdapter, HostAdapterStatus);
2472 HostStatus = DID_ERROR;
2473 break;
2474 }
2475 return (HostStatus << 16) | TargetDeviceStatus;
2476}
2477
2478
2479/*
2480 BusLogic_ScanIncomingMailboxes scans the Incoming Mailboxes saving any
2481 Incoming Mailbox entries for completion processing.
2482*/
2483
2484static void BusLogic_ScanIncomingMailboxes(struct BusLogic_HostAdapter *HostAdapter)
2485{
2486 /*
2487 Scan through the Incoming Mailboxes in Strict Round Robin fashion, saving
2488 any completed CCBs for further processing. It is essential that for each
2489 CCB and SCSI Command issued, command completion processing is performed
2490 exactly once. Therefore, only Incoming Mailboxes with completion code
2491 Command Completed Without Error, Command Completed With Error, or Command
2492 Aborted At Host Request are saved for completion processing. When an
2493 Incoming Mailbox has a completion code of Aborted Command Not Found, the
2494 CCB had already completed or been aborted before the current Abort request
2495 was processed, and so completion processing has already occurred and no
2496 further action should be taken.
2497 */
2498 struct BusLogic_IncomingMailbox *NextIncomingMailbox = HostAdapter->NextIncomingMailbox;
2499 enum BusLogic_CompletionCode CompletionCode;
2500 while ((CompletionCode = NextIncomingMailbox->CompletionCode) != BusLogic_IncomingMailboxFree) {
2501 /*
2502 We are only allowed to do this because we limit our architectures we
2503 run on to machines where bus_to_virt() actually works. There *needs*
2504 to be a dma_addr_to_virt() in the new PCI DMA mapping interface to
2505 replace bus_to_virt() or else this code is going to become very
2506 innefficient.
2507 */
2508 struct BusLogic_CCB *CCB = (struct BusLogic_CCB *) Bus_to_Virtual(NextIncomingMailbox->CCB);
2509 if (CompletionCode != BusLogic_AbortedCommandNotFound) {
2510 if (CCB->Status == BusLogic_CCB_Active || CCB->Status == BusLogic_CCB_Reset) {
2511 /*
2512 Save the Completion Code for this CCB and queue the CCB
2513 for completion processing.
2514 */
2515 CCB->CompletionCode = CompletionCode;
2516 BusLogic_QueueCompletedCCB(CCB);
2517 } else {
2518 /*
2519 If a CCB ever appears in an Incoming Mailbox and is not marked
2520 as status Active or Reset, then there is most likely a bug in
2521 the Host Adapter firmware.
2522 */
2523 BusLogic_Warning("Illegal CCB #%ld status %d in " "Incoming Mailbox\n", HostAdapter, CCB->SerialNumber, CCB->Status);
2524 }
2525 }
2526 NextIncomingMailbox->CompletionCode = BusLogic_IncomingMailboxFree;
2527 if (++NextIncomingMailbox > HostAdapter->LastIncomingMailbox)
2528 NextIncomingMailbox = HostAdapter->FirstIncomingMailbox;
2529 }
2530 HostAdapter->NextIncomingMailbox = NextIncomingMailbox;
2531}
2532
2533
2534/*
2535 BusLogic_ProcessCompletedCCBs iterates over the completed CCBs for Host
2536 Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and
2537 calling the SCSI Subsystem Completion Routines. The Host Adapter's Lock
2538 should already have been acquired by the caller.
2539*/
2540
2541static void BusLogic_ProcessCompletedCCBs(struct BusLogic_HostAdapter *HostAdapter)
2542{
2543 if (HostAdapter->ProcessCompletedCCBsActive)
2544 return;
2545 HostAdapter->ProcessCompletedCCBsActive = true;
2546 while (HostAdapter->FirstCompletedCCB != NULL) {
2547 struct BusLogic_CCB *CCB = HostAdapter->FirstCompletedCCB;
2548 struct scsi_cmnd *Command = CCB->Command;
2549 HostAdapter->FirstCompletedCCB = CCB->Next;
2550 if (HostAdapter->FirstCompletedCCB == NULL)
2551 HostAdapter->LastCompletedCCB = NULL;
2552 /*
2553 Process the Completed CCB.
2554 */
2555 if (CCB->Opcode == BusLogic_BusDeviceReset) {
2556 int TargetID = CCB->TargetID;
2557 BusLogic_Warning("Bus Device Reset CCB #%ld to Target " "%d Completed\n", HostAdapter, CCB->SerialNumber, TargetID);
2558 BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].BusDeviceResetsCompleted);
2559 HostAdapter->TargetFlags[TargetID].TaggedQueuingActive = false;
2560 HostAdapter->CommandsSinceReset[TargetID] = 0;
2561 HostAdapter->LastResetCompleted[TargetID] = jiffies;
2562 /*
2563 Place CCB back on the Host Adapter's free list.
2564 */
2565 BusLogic_DeallocateCCB(CCB);
2566#if 0 /* this needs to be redone different for new EH */
2567 /*
2568 Bus Device Reset CCBs have the Command field non-NULL only when a
2569 Bus Device Reset was requested for a Command that did not have a
2570 currently active CCB in the Host Adapter (i.e., a Synchronous
2571 Bus Device Reset), and hence would not have its Completion Routine
2572 called otherwise.
2573 */
2574 while (Command != NULL) {
2575 struct scsi_cmnd *NextCommand = Command->reset_chain;
2576 Command->reset_chain = NULL;
2577 Command->result = DID_RESET << 16;
2578 Command->scsi_done(Command);
2579 Command = NextCommand;
2580 }
2581#endif
2582 /*
2583 Iterate over the CCBs for this Host Adapter performing completion
2584 processing for any CCBs marked as Reset for this Target.
2585 */
2586 for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll)
2587 if (CCB->Status == BusLogic_CCB_Reset && CCB->TargetID == TargetID) {
2588 Command = CCB->Command;
2589 BusLogic_DeallocateCCB(CCB);
2590 HostAdapter->ActiveCommands[TargetID]--;
2591 Command->result = DID_RESET << 16;
2592 Command->scsi_done(Command);
2593 }
2594 HostAdapter->BusDeviceResetPendingCCB[TargetID] = NULL;
2595 } else {
2596 /*
2597 Translate the Completion Code, Host Adapter Status, and Target
2598 Device Status into a SCSI Subsystem Result Code.
2599 */
2600 switch (CCB->CompletionCode) {
2601 case BusLogic_IncomingMailboxFree:
2602 case BusLogic_AbortedCommandNotFound:
2603 case BusLogic_InvalidCCB:
2604 BusLogic_Warning("CCB #%ld to Target %d Impossible State\n", HostAdapter, CCB->SerialNumber, CCB->TargetID);
2605 break;
2606 case BusLogic_CommandCompletedWithoutError:
2607 HostAdapter->TargetStatistics[CCB->TargetID]
2608 .CommandsCompleted++;
2609 HostAdapter->TargetFlags[CCB->TargetID]
2610 .CommandSuccessfulFlag = true;
2611 Command->result = DID_OK << 16;
2612 break;
2613 case BusLogic_CommandAbortedAtHostRequest:
2614 BusLogic_Warning("CCB #%ld to Target %d Aborted\n", HostAdapter, CCB->SerialNumber, CCB->TargetID);
2615 BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[CCB->TargetID]
2616 .CommandAbortsCompleted);
2617 Command->result = DID_ABORT << 16;
2618 break;
2619 case BusLogic_CommandCompletedWithError:
2620 Command->result = BusLogic_ComputeResultCode(HostAdapter, CCB->HostAdapterStatus, CCB->TargetDeviceStatus);
2621 if (CCB->HostAdapterStatus != BusLogic_SCSISelectionTimeout) {
2622 HostAdapter->TargetStatistics[CCB->TargetID]
2623 .CommandsCompleted++;
2624 if (BusLogic_GlobalOptions.TraceErrors) {
2625 int i;
2626 BusLogic_Notice("CCB #%ld Target %d: Result %X Host "
2627 "Adapter Status %02X " "Target Status %02X\n", HostAdapter, CCB->SerialNumber, CCB->TargetID, Command->result, CCB->HostAdapterStatus, CCB->TargetDeviceStatus);
2628 BusLogic_Notice("CDB ", HostAdapter);
2629 for (i = 0; i < CCB->CDB_Length; i++)
2630 BusLogic_Notice(" %02X", HostAdapter, CCB->CDB[i]);
2631 BusLogic_Notice("\n", HostAdapter);
2632 BusLogic_Notice("Sense ", HostAdapter);
2633 for (i = 0; i < CCB->SenseDataLength; i++)
2634 BusLogic_Notice(" %02X", HostAdapter, Command->sense_buffer[i]);
2635 BusLogic_Notice("\n", HostAdapter);
2636 }
2637 }
2638 break;
2639 }
2640 /*
2641 When an INQUIRY command completes normally, save the
2642 CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit
2643 Wide Data Transfers Supported) bits.
2644 */
2645 if (CCB->CDB[0] == INQUIRY && CCB->CDB[1] == 0 && CCB->HostAdapterStatus == BusLogic_CommandCompletedNormally) {
2646 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[CCB->TargetID];
2647 struct SCSI_Inquiry *InquiryResult =
2648 (struct SCSI_Inquiry *) scsi_sglist(Command);
2649 TargetFlags->TargetExists = true;
2650 TargetFlags->TaggedQueuingSupported = InquiryResult->CmdQue;
2651 TargetFlags->WideTransfersSupported = InquiryResult->WBus16;
2652 }
2653 /*
2654 Place CCB back on the Host Adapter's free list.
2655 */
2656 BusLogic_DeallocateCCB(CCB);
2657 /*
2658 Call the SCSI Command Completion Routine.
2659 */
2660 Command->scsi_done(Command);
2661 }
2662 }
2663 HostAdapter->ProcessCompletedCCBsActive = false;
2664}
2665
2666
2667/*
2668 BusLogic_InterruptHandler handles hardware interrupts from BusLogic Host
2669 Adapters.
2670*/
2671
2672static irqreturn_t BusLogic_InterruptHandler(int IRQ_Channel, void *DeviceIdentifier)
2673{
2674 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) DeviceIdentifier;
2675 unsigned long ProcessorFlags;
2676 /*
2677 Acquire exclusive access to Host Adapter.
2678 */
2679 spin_lock_irqsave(HostAdapter->SCSI_Host->host_lock, ProcessorFlags);
2680 /*
2681 Handle Interrupts appropriately for each Host Adapter type.
2682 */
2683 if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) {
2684 union BusLogic_InterruptRegister InterruptRegister;
2685 /*
2686 Read the Host Adapter Interrupt Register.
2687 */
2688 InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter);
2689 if (InterruptRegister.ir.InterruptValid) {
2690 /*
2691 Acknowledge the interrupt and reset the Host Adapter
2692 Interrupt Register.
2693 */
2694 BusLogic_InterruptReset(HostAdapter);
2695 /*
2696 Process valid External SCSI Bus Reset and Incoming Mailbox
2697 Loaded Interrupts. Command Complete Interrupts are noted,
2698 and Outgoing Mailbox Available Interrupts are ignored, as
2699 they are never enabled.
2700 */
2701 if (InterruptRegister.ir.ExternalBusReset)
2702 HostAdapter->HostAdapterExternalReset = true;
2703 else if (InterruptRegister.ir.IncomingMailboxLoaded)
2704 BusLogic_ScanIncomingMailboxes(HostAdapter);
2705 else if (InterruptRegister.ir.CommandComplete)
2706 HostAdapter->HostAdapterCommandCompleted = true;
2707 }
2708 } else {
2709 /*
2710 Check if there is a pending interrupt for this Host Adapter.
2711 */
2712 if (FlashPoint_InterruptPending(HostAdapter->CardHandle))
2713 switch (FlashPoint_HandleInterrupt(HostAdapter->CardHandle)) {
2714 case FlashPoint_NormalInterrupt:
2715 break;
2716 case FlashPoint_ExternalBusReset:
2717 HostAdapter->HostAdapterExternalReset = true;
2718 break;
2719 case FlashPoint_InternalError:
2720 BusLogic_Warning("Internal FlashPoint Error detected" " - Resetting Host Adapter\n", HostAdapter);
2721 HostAdapter->HostAdapterInternalError = true;
2722 break;
2723 }
2724 }
2725 /*
2726 Process any completed CCBs.
2727 */
2728 if (HostAdapter->FirstCompletedCCB != NULL)
2729 BusLogic_ProcessCompletedCCBs(HostAdapter);
2730 /*
2731 Reset the Host Adapter if requested.
2732 */
2733 if (HostAdapter->HostAdapterExternalReset) {
2734 BusLogic_Warning("Resetting %s due to External SCSI Bus Reset\n", HostAdapter, HostAdapter->FullModelName);
2735 BusLogic_IncrementErrorCounter(&HostAdapter->ExternalHostAdapterResets);
2736 BusLogic_ResetHostAdapter(HostAdapter, false);
2737 HostAdapter->HostAdapterExternalReset = false;
2738 } else if (HostAdapter->HostAdapterInternalError) {
2739 BusLogic_Warning("Resetting %s due to Host Adapter Internal Error\n", HostAdapter, HostAdapter->FullModelName);
2740 BusLogic_IncrementErrorCounter(&HostAdapter->HostAdapterInternalErrors);
2741 BusLogic_ResetHostAdapter(HostAdapter, true);
2742 HostAdapter->HostAdapterInternalError = false;
2743 }
2744 /*
2745 Release exclusive access to Host Adapter.
2746 */
2747 spin_unlock_irqrestore(HostAdapter->SCSI_Host->host_lock, ProcessorFlags);
2748 return IRQ_HANDLED;
2749}
2750
2751
2752/*
2753 BusLogic_WriteOutgoingMailbox places CCB and Action Code into an Outgoing
2754 Mailbox for execution by Host Adapter. The Host Adapter's Lock should
2755 already have been acquired by the caller.
2756*/
2757
2758static bool BusLogic_WriteOutgoingMailbox(struct BusLogic_HostAdapter
2759 *HostAdapter, enum BusLogic_ActionCode ActionCode, struct BusLogic_CCB *CCB)
2760{
2761 struct BusLogic_OutgoingMailbox *NextOutgoingMailbox;
2762 NextOutgoingMailbox = HostAdapter->NextOutgoingMailbox;
2763 if (NextOutgoingMailbox->ActionCode == BusLogic_OutgoingMailboxFree) {
2764 CCB->Status = BusLogic_CCB_Active;
2765 /*
2766 The CCB field must be written before the Action Code field since
2767 the Host Adapter is operating asynchronously and the locking code
2768 does not protect against simultaneous access by the Host Adapter.
2769 */
2770 NextOutgoingMailbox->CCB = CCB->DMA_Handle;
2771 NextOutgoingMailbox->ActionCode = ActionCode;
2772 BusLogic_StartMailboxCommand(HostAdapter);
2773 if (++NextOutgoingMailbox > HostAdapter->LastOutgoingMailbox)
2774 NextOutgoingMailbox = HostAdapter->FirstOutgoingMailbox;
2775 HostAdapter->NextOutgoingMailbox = NextOutgoingMailbox;
2776 if (ActionCode == BusLogic_MailboxStartCommand) {
2777 HostAdapter->ActiveCommands[CCB->TargetID]++;
2778 if (CCB->Opcode != BusLogic_BusDeviceReset)
2779 HostAdapter->TargetStatistics[CCB->TargetID].CommandsAttempted++;
2780 }
2781 return true;
2782 }
2783 return false;
2784}
2785
2786/* Error Handling (EH) support */
2787
2788static int BusLogic_host_reset(struct scsi_cmnd * SCpnt)
2789{
2790 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) SCpnt->device->host->hostdata;
2791
2792 unsigned int id = SCpnt->device->id;
2793 struct BusLogic_TargetStatistics *stats = &HostAdapter->TargetStatistics[id];
2794 int rc;
2795
2796 spin_lock_irq(SCpnt->device->host->host_lock);
2797
2798 BusLogic_IncrementErrorCounter(&stats->HostAdapterResetsRequested);
2799
2800 rc = BusLogic_ResetHostAdapter(HostAdapter, false);
2801 spin_unlock_irq(SCpnt->device->host->host_lock);
2802 return rc;
2803}
2804
2805/*
2806 BusLogic_QueueCommand creates a CCB for Command and places it into an
2807 Outgoing Mailbox for execution by the associated Host Adapter.
2808*/
2809
2810static int BusLogic_QueueCommand_lck(struct scsi_cmnd *Command, void (*CompletionRoutine) (struct scsi_cmnd *))
2811{
2812 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Command->device->host->hostdata;
2813 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[Command->device->id];
2814 struct BusLogic_TargetStatistics *TargetStatistics = HostAdapter->TargetStatistics;
2815 unsigned char *CDB = Command->cmnd;
2816 int CDB_Length = Command->cmd_len;
2817 int TargetID = Command->device->id;
2818 int LogicalUnit = Command->device->lun;
2819 int BufferLength = scsi_bufflen(Command);
2820 int Count;
2821 struct BusLogic_CCB *CCB;
2822 /*
2823 SCSI REQUEST_SENSE commands will be executed automatically by the Host
2824 Adapter for any errors, so they should not be executed explicitly unless
2825 the Sense Data is zero indicating that no error occurred.
2826 */
2827 if (CDB[0] == REQUEST_SENSE && Command->sense_buffer[0] != 0) {
2828 Command->result = DID_OK << 16;
2829 CompletionRoutine(Command);
2830 return 0;
2831 }
2832 /*
2833 Allocate a CCB from the Host Adapter's free list. In the unlikely event
2834 that there are none available and memory allocation fails, wait 1 second
2835 and try again. If that fails, the Host Adapter is probably hung so signal
2836 an error as a Host Adapter Hard Reset should be initiated soon.
2837 */
2838 CCB = BusLogic_AllocateCCB(HostAdapter);
2839 if (CCB == NULL) {
2840 spin_unlock_irq(HostAdapter->SCSI_Host->host_lock);
2841 BusLogic_Delay(1);
2842 spin_lock_irq(HostAdapter->SCSI_Host->host_lock);
2843 CCB = BusLogic_AllocateCCB(HostAdapter);
2844 if (CCB == NULL) {
2845 Command->result = DID_ERROR << 16;
2846 CompletionRoutine(Command);
2847 return 0;
2848 }
2849 }
2850
2851 /*
2852 Initialize the fields in the BusLogic Command Control Block (CCB).
2853 */
2854 Count = scsi_dma_map(Command);
2855 BUG_ON(Count < 0);
2856 if (Count) {
2857 struct scatterlist *sg;
2858 int i;
2859
2860 CCB->Opcode = BusLogic_InitiatorCCB_ScatterGather;
2861 CCB->DataLength = Count * sizeof(struct BusLogic_ScatterGatherSegment);
2862 if (BusLogic_MultiMasterHostAdapterP(HostAdapter))
2863 CCB->DataPointer = (unsigned int) CCB->DMA_Handle + ((unsigned long) &CCB->ScatterGatherList - (unsigned long) CCB);
2864 else
2865 CCB->DataPointer = Virtual_to_32Bit_Virtual(CCB->ScatterGatherList);
2866
2867 scsi_for_each_sg(Command, sg, Count, i) {
2868 CCB->ScatterGatherList[i].SegmentByteCount =
2869 sg_dma_len(sg);
2870 CCB->ScatterGatherList[i].SegmentDataPointer =
2871 sg_dma_address(sg);
2872 }
2873 } else if (!Count) {
2874 CCB->Opcode = BusLogic_InitiatorCCB;
2875 CCB->DataLength = BufferLength;
2876 CCB->DataPointer = 0;
2877 }
2878
2879 switch (CDB[0]) {
2880 case READ_6:
2881 case READ_10:
2882 CCB->DataDirection = BusLogic_DataInLengthChecked;
2883 TargetStatistics[TargetID].ReadCommands++;
2884 BusLogic_IncrementByteCounter(&TargetStatistics[TargetID].TotalBytesRead, BufferLength);
2885 BusLogic_IncrementSizeBucket(TargetStatistics[TargetID].ReadCommandSizeBuckets, BufferLength);
2886 break;
2887 case WRITE_6:
2888 case WRITE_10:
2889 CCB->DataDirection = BusLogic_DataOutLengthChecked;
2890 TargetStatistics[TargetID].WriteCommands++;
2891 BusLogic_IncrementByteCounter(&TargetStatistics[TargetID].TotalBytesWritten, BufferLength);
2892 BusLogic_IncrementSizeBucket(TargetStatistics[TargetID].WriteCommandSizeBuckets, BufferLength);
2893 break;
2894 default:
2895 CCB->DataDirection = BusLogic_UncheckedDataTransfer;
2896 break;
2897 }
2898 CCB->CDB_Length = CDB_Length;
2899 CCB->HostAdapterStatus = 0;
2900 CCB->TargetDeviceStatus = 0;
2901 CCB->TargetID = TargetID;
2902 CCB->LogicalUnit = LogicalUnit;
2903 CCB->TagEnable = false;
2904 CCB->LegacyTagEnable = false;
2905 /*
2906 BusLogic recommends that after a Reset the first couple of commands that
2907 are sent to a Target Device be sent in a non Tagged Queue fashion so that
2908 the Host Adapter and Target Device can establish Synchronous and Wide
2909 Transfer before Queue Tag messages can interfere with the Synchronous and
2910 Wide Negotiation messages. By waiting to enable Tagged Queuing until after
2911 the first BusLogic_MaxTaggedQueueDepth commands have been queued, it is
2912 assured that after a Reset any pending commands are requeued before Tagged
2913 Queuing is enabled and that the Tagged Queuing message will not occur while
2914 the partition table is being printed. In addition, some devices do not
2915 properly handle the transition from non-tagged to tagged commands, so it is
2916 necessary to wait until there are no pending commands for a target device
2917 before queuing tagged commands.
2918 */
2919 if (HostAdapter->CommandsSinceReset[TargetID]++ >=
2920 BusLogic_MaxTaggedQueueDepth && !TargetFlags->TaggedQueuingActive && HostAdapter->ActiveCommands[TargetID] == 0 && TargetFlags->TaggedQueuingSupported && (HostAdapter->TaggedQueuingPermitted & (1 << TargetID))) {
2921 TargetFlags->TaggedQueuingActive = true;
2922 BusLogic_Notice("Tagged Queuing now active for Target %d\n", HostAdapter, TargetID);
2923 }
2924 if (TargetFlags->TaggedQueuingActive) {
2925 enum BusLogic_QueueTag QueueTag = BusLogic_SimpleQueueTag;
2926 /*
2927 When using Tagged Queuing with Simple Queue Tags, it appears that disk
2928 drive controllers do not guarantee that a queued command will not
2929 remain in a disconnected state indefinitely if commands that read or
2930 write nearer the head position continue to arrive without interruption.
2931 Therefore, for each Target Device this driver keeps track of the last
2932 time either the queue was empty or an Ordered Queue Tag was issued. If
2933 more than 4 seconds (one fifth of the 20 second disk timeout) have
2934 elapsed since this last sequence point, this command will be issued
2935 with an Ordered Queue Tag rather than a Simple Queue Tag, which forces
2936 the Target Device to complete all previously queued commands before
2937 this command may be executed.
2938 */
2939 if (HostAdapter->ActiveCommands[TargetID] == 0)
2940 HostAdapter->LastSequencePoint[TargetID] = jiffies;
2941 else if (time_after(jiffies, HostAdapter->LastSequencePoint[TargetID] + 4 * HZ)) {
2942 HostAdapter->LastSequencePoint[TargetID] = jiffies;
2943 QueueTag = BusLogic_OrderedQueueTag;
2944 }
2945 if (HostAdapter->ExtendedLUNSupport) {
2946 CCB->TagEnable = true;
2947 CCB->QueueTag = QueueTag;
2948 } else {
2949 CCB->LegacyTagEnable = true;
2950 CCB->LegacyQueueTag = QueueTag;
2951 }
2952 }
2953 memcpy(CCB->CDB, CDB, CDB_Length);
2954 CCB->SenseDataLength = SCSI_SENSE_BUFFERSIZE;
2955 CCB->SenseDataPointer = pci_map_single(HostAdapter->PCI_Device, Command->sense_buffer, CCB->SenseDataLength, PCI_DMA_FROMDEVICE);
2956 CCB->Command = Command;
2957 Command->scsi_done = CompletionRoutine;
2958 if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) {
2959 /*
2960 Place the CCB in an Outgoing Mailbox. The higher levels of the SCSI
2961 Subsystem should not attempt to queue more commands than can be placed
2962 in Outgoing Mailboxes, so there should always be one free. In the
2963 unlikely event that there are none available, wait 1 second and try
2964 again. If that fails, the Host Adapter is probably hung so signal an
2965 error as a Host Adapter Hard Reset should be initiated soon.
2966 */
2967 if (!BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxStartCommand, CCB)) {
2968 spin_unlock_irq(HostAdapter->SCSI_Host->host_lock);
2969 BusLogic_Warning("Unable to write Outgoing Mailbox - " "Pausing for 1 second\n", HostAdapter);
2970 BusLogic_Delay(1);
2971 spin_lock_irq(HostAdapter->SCSI_Host->host_lock);
2972 if (!BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxStartCommand, CCB)) {
2973 BusLogic_Warning("Still unable to write Outgoing Mailbox - " "Host Adapter Dead?\n", HostAdapter);
2974 BusLogic_DeallocateCCB(CCB);
2975 Command->result = DID_ERROR << 16;
2976 Command->scsi_done(Command);
2977 }
2978 }
2979 } else {
2980 /*
2981 Call the FlashPoint SCCB Manager to start execution of the CCB.
2982 */
2983 CCB->Status = BusLogic_CCB_Active;
2984 HostAdapter->ActiveCommands[TargetID]++;
2985 TargetStatistics[TargetID].CommandsAttempted++;
2986 FlashPoint_StartCCB(HostAdapter->CardHandle, CCB);
2987 /*
2988 The Command may have already completed and BusLogic_QueueCompletedCCB
2989 been called, or it may still be pending.
2990 */
2991 if (CCB->Status == BusLogic_CCB_Completed)
2992 BusLogic_ProcessCompletedCCBs(HostAdapter);
2993 }
2994 return 0;
2995}
2996
2997static DEF_SCSI_QCMD(BusLogic_QueueCommand)
2998
2999#if 0
3000/*
3001 BusLogic_AbortCommand aborts Command if possible.
3002*/
3003
3004static int BusLogic_AbortCommand(struct scsi_cmnd *Command)
3005{
3006 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Command->device->host->hostdata;
3007
3008 int TargetID = Command->device->id;
3009 struct BusLogic_CCB *CCB;
3010 BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsRequested);
3011 /*
3012 Attempt to find an Active CCB for this Command. If no Active CCB for this
3013 Command is found, then no Abort is necessary.
3014 */
3015 for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll)
3016 if (CCB->Command == Command)
3017 break;
3018 if (CCB == NULL) {
3019 BusLogic_Warning("Unable to Abort Command to Target %d - " "No CCB Found\n", HostAdapter, TargetID);
3020 return SUCCESS;
3021 } else if (CCB->Status == BusLogic_CCB_Completed) {
3022 BusLogic_Warning("Unable to Abort Command to Target %d - " "CCB Completed\n", HostAdapter, TargetID);
3023 return SUCCESS;
3024 } else if (CCB->Status == BusLogic_CCB_Reset) {
3025 BusLogic_Warning("Unable to Abort Command to Target %d - " "CCB Reset\n", HostAdapter, TargetID);
3026 return SUCCESS;
3027 }
3028 if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) {
3029 /*
3030 Attempt to Abort this CCB. MultiMaster Firmware versions prior to 5.xx
3031 do not generate Abort Tag messages, but only generate the non-tagged
3032 Abort message. Since non-tagged commands are not sent by the Host
3033 Adapter until the queue of outstanding tagged commands has completed,
3034 and the Abort message is treated as a non-tagged command, it is
3035 effectively impossible to abort commands when Tagged Queuing is active.
3036 Firmware version 5.xx does generate Abort Tag messages, so it is
3037 possible to abort commands when Tagged Queuing is active.
3038 */
3039 if (HostAdapter->TargetFlags[TargetID].TaggedQueuingActive && HostAdapter->FirmwareVersion[0] < '5') {
3040 BusLogic_Warning("Unable to Abort CCB #%ld to Target %d - " "Abort Tag Not Supported\n", HostAdapter, CCB->SerialNumber, TargetID);
3041 return FAILURE;
3042 } else if (BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxAbortCommand, CCB)) {
3043 BusLogic_Warning("Aborting CCB #%ld to Target %d\n", HostAdapter, CCB->SerialNumber, TargetID);
3044 BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsAttempted);
3045 return SUCCESS;
3046 } else {
3047 BusLogic_Warning("Unable to Abort CCB #%ld to Target %d - " "No Outgoing Mailboxes\n", HostAdapter, CCB->SerialNumber, TargetID);
3048 return FAILURE;
3049 }
3050 } else {
3051 /*
3052 Call the FlashPoint SCCB Manager to abort execution of the CCB.
3053 */
3054 BusLogic_Warning("Aborting CCB #%ld to Target %d\n", HostAdapter, CCB->SerialNumber, TargetID);
3055 BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsAttempted);
3056 FlashPoint_AbortCCB(HostAdapter->CardHandle, CCB);
3057 /*
3058 The Abort may have already been completed and
3059 BusLogic_QueueCompletedCCB been called, or it
3060 may still be pending.
3061 */
3062 if (CCB->Status == BusLogic_CCB_Completed) {
3063 BusLogic_ProcessCompletedCCBs(HostAdapter);
3064 }
3065 return SUCCESS;
3066 }
3067 return SUCCESS;
3068}
3069
3070#endif
3071/*
3072 BusLogic_ResetHostAdapter resets Host Adapter if possible, marking all
3073 currently executing SCSI Commands as having been Reset.
3074*/
3075
3076static int BusLogic_ResetHostAdapter(struct BusLogic_HostAdapter *HostAdapter, bool HardReset)
3077{
3078 struct BusLogic_CCB *CCB;
3079 int TargetID;
3080
3081 /*
3082 * Attempt to Reset and Reinitialize the Host Adapter.
3083 */
3084
3085 if (!(BusLogic_HardwareResetHostAdapter(HostAdapter, HardReset) && BusLogic_InitializeHostAdapter(HostAdapter))) {
3086 BusLogic_Error("Resetting %s Failed\n", HostAdapter, HostAdapter->FullModelName);
3087 return FAILURE;
3088 }
3089
3090 /*
3091 * Deallocate all currently executing CCBs.
3092 */
3093
3094 for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll)
3095 if (CCB->Status == BusLogic_CCB_Active)
3096 BusLogic_DeallocateCCB(CCB);
3097 /*
3098 * Wait a few seconds between the Host Adapter Hard Reset which
3099 * initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
3100 * SCSI devices get confused if they receive SCSI Commands too soon
3101 * after a SCSI Bus Reset.
3102 */
3103
3104 if (HardReset) {
3105 spin_unlock_irq(HostAdapter->SCSI_Host->host_lock);
3106 BusLogic_Delay(HostAdapter->BusSettleTime);
3107 spin_lock_irq(HostAdapter->SCSI_Host->host_lock);
3108 }
3109
3110 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3111 HostAdapter->LastResetAttempted[TargetID] = jiffies;
3112 HostAdapter->LastResetCompleted[TargetID] = jiffies;
3113 }
3114 return SUCCESS;
3115}
3116
3117/*
3118 BusLogic_BIOSDiskParameters returns the Heads/Sectors/Cylinders BIOS Disk
3119 Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and
3120 the appropriate number of cylinders so as not to exceed drive capacity. In
3121 order for disks equal to or larger than 1 GB to be addressable by the BIOS
3122 without exceeding the BIOS limitation of 1024 cylinders, Extended Translation
3123 may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C"
3124 series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A"
3125 series MultiMaster Host Adapters. With Extended Translation enabled, drives
3126 between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128
3127 heads and 32 sectors, and drives above 2 GB inclusive are given a disk
3128 geometry of 255 heads and 63 sectors. However, if the BIOS detects that the
3129 Extended Translation setting does not match the geometry in the partition
3130 table, then the translation inferred from the partition table will be used by
3131 the BIOS, and a warning may be displayed.
3132*/
3133
3134static int BusLogic_BIOSDiskParameters(struct scsi_device *sdev, struct block_device *Device, sector_t capacity, int *Parameters)
3135{
3136 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) sdev->host->hostdata;
3137 struct BIOS_DiskParameters *DiskParameters = (struct BIOS_DiskParameters *) Parameters;
3138 unsigned char *buf;
3139 if (HostAdapter->ExtendedTranslationEnabled && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */ ) {
3140 if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */ ) {
3141 DiskParameters->Heads = 255;
3142 DiskParameters->Sectors = 63;
3143 } else {
3144 DiskParameters->Heads = 128;
3145 DiskParameters->Sectors = 32;
3146 }
3147 } else {
3148 DiskParameters->Heads = 64;
3149 DiskParameters->Sectors = 32;
3150 }
3151 DiskParameters->Cylinders = (unsigned long) capacity / (DiskParameters->Heads * DiskParameters->Sectors);
3152 buf = scsi_bios_ptable(Device);
3153 if (buf == NULL)
3154 return 0;
3155 /*
3156 If the boot sector partition table flag is valid, search for a partition
3157 table entry whose end_head matches one of the standard BusLogic geometry
3158 translations (64/32, 128/32, or 255/63).
3159 */
3160 if (*(unsigned short *) (buf + 64) == 0xAA55) {
3161 struct partition *FirstPartitionEntry = (struct partition *) buf;
3162 struct partition *PartitionEntry = FirstPartitionEntry;
3163 int SavedCylinders = DiskParameters->Cylinders, PartitionNumber;
3164 unsigned char PartitionEntryEndHead = 0, PartitionEntryEndSector = 0;
3165 for (PartitionNumber = 0; PartitionNumber < 4; PartitionNumber++) {
3166 PartitionEntryEndHead = PartitionEntry->end_head;
3167 PartitionEntryEndSector = PartitionEntry->end_sector & 0x3F;
3168 if (PartitionEntryEndHead == 64 - 1) {
3169 DiskParameters->Heads = 64;
3170 DiskParameters->Sectors = 32;
3171 break;
3172 } else if (PartitionEntryEndHead == 128 - 1) {
3173 DiskParameters->Heads = 128;
3174 DiskParameters->Sectors = 32;
3175 break;
3176 } else if (PartitionEntryEndHead == 255 - 1) {
3177 DiskParameters->Heads = 255;
3178 DiskParameters->Sectors = 63;
3179 break;
3180 }
3181 PartitionEntry++;
3182 }
3183 if (PartitionNumber == 4) {
3184 PartitionEntryEndHead = FirstPartitionEntry->end_head;
3185 PartitionEntryEndSector = FirstPartitionEntry->end_sector & 0x3F;
3186 }
3187 DiskParameters->Cylinders = (unsigned long) capacity / (DiskParameters->Heads * DiskParameters->Sectors);
3188 if (PartitionNumber < 4 && PartitionEntryEndSector == DiskParameters->Sectors) {
3189 if (DiskParameters->Cylinders != SavedCylinders)
3190 BusLogic_Warning("Adopting Geometry %d/%d from Partition Table\n", HostAdapter, DiskParameters->Heads, DiskParameters->Sectors);
3191 } else if (PartitionEntryEndHead > 0 || PartitionEntryEndSector > 0) {
3192 BusLogic_Warning("Warning: Partition Table appears to " "have Geometry %d/%d which is\n", HostAdapter, PartitionEntryEndHead + 1, PartitionEntryEndSector);
3193 BusLogic_Warning("not compatible with current BusLogic " "Host Adapter Geometry %d/%d\n", HostAdapter, DiskParameters->Heads, DiskParameters->Sectors);
3194 }
3195 }
3196 kfree(buf);
3197 return 0;
3198}
3199
3200
3201/*
3202 BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>.
3203*/
3204
3205static int BusLogic_ProcDirectoryInfo(struct Scsi_Host *shost, char *ProcBuffer, char **StartPointer, off_t Offset, int BytesAvailable, int WriteFlag)
3206{
3207 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) shost->hostdata;
3208 struct BusLogic_TargetStatistics *TargetStatistics;
3209 int TargetID, Length;
3210 char *Buffer;
3211
3212 TargetStatistics = HostAdapter->TargetStatistics;
3213 if (WriteFlag) {
3214 HostAdapter->ExternalHostAdapterResets = 0;
3215 HostAdapter->HostAdapterInternalErrors = 0;
3216 memset(TargetStatistics, 0, BusLogic_MaxTargetDevices * sizeof(struct BusLogic_TargetStatistics));
3217 return 0;
3218 }
3219 Buffer = HostAdapter->MessageBuffer;
3220 Length = HostAdapter->MessageBufferLength;
3221 Length += sprintf(&Buffer[Length], "\n\
3222Current Driver Queue Depth: %d\n\
3223Currently Allocated CCBs: %d\n", HostAdapter->DriverQueueDepth, HostAdapter->AllocatedCCBs);
3224 Length += sprintf(&Buffer[Length], "\n\n\
3225 DATA TRANSFER STATISTICS\n\
3226\n\
3227Target Tagged Queuing Queue Depth Active Attempted Completed\n\
3228====== ============== =========== ====== ========= =========\n");
3229 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3230 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3231 if (!TargetFlags->TargetExists)
3232 continue;
3233 Length += sprintf(&Buffer[Length], " %2d %s", TargetID, (TargetFlags->TaggedQueuingSupported ? (TargetFlags->TaggedQueuingActive ? " Active" : (HostAdapter->TaggedQueuingPermitted & (1 << TargetID)
3234 ? " Permitted" : " Disabled"))
3235 : "Not Supported"));
3236 Length += sprintf(&Buffer[Length],
3237 " %3d %3u %9u %9u\n", HostAdapter->QueueDepth[TargetID], HostAdapter->ActiveCommands[TargetID], TargetStatistics[TargetID].CommandsAttempted, TargetStatistics[TargetID].CommandsCompleted);
3238 }
3239 Length += sprintf(&Buffer[Length], "\n\
3240Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\
3241====== ============= ============== =================== ===================\n");
3242 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3243 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3244 if (!TargetFlags->TargetExists)
3245 continue;
3246 Length += sprintf(&Buffer[Length], " %2d %9u %9u", TargetID, TargetStatistics[TargetID].ReadCommands, TargetStatistics[TargetID].WriteCommands);
3247 if (TargetStatistics[TargetID].TotalBytesRead.Billions > 0)
3248 Length += sprintf(&Buffer[Length], " %9u%09u", TargetStatistics[TargetID].TotalBytesRead.Billions, TargetStatistics[TargetID].TotalBytesRead.Units);
3249 else
3250 Length += sprintf(&Buffer[Length], " %9u", TargetStatistics[TargetID].TotalBytesRead.Units);
3251 if (TargetStatistics[TargetID].TotalBytesWritten.Billions > 0)
3252 Length += sprintf(&Buffer[Length], " %9u%09u\n", TargetStatistics[TargetID].TotalBytesWritten.Billions, TargetStatistics[TargetID].TotalBytesWritten.Units);
3253 else
3254 Length += sprintf(&Buffer[Length], " %9u\n", TargetStatistics[TargetID].TotalBytesWritten.Units);
3255 }
3256 Length += sprintf(&Buffer[Length], "\n\
3257Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\
3258====== ======= ========= ========= ========= ========= =========\n");
3259 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3260 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3261 if (!TargetFlags->TargetExists)
3262 continue;
3263 Length +=
3264 sprintf(&Buffer[Length],
3265 " %2d Read %9u %9u %9u %9u %9u\n", TargetID,
3266 TargetStatistics[TargetID].ReadCommandSizeBuckets[0],
3267 TargetStatistics[TargetID].ReadCommandSizeBuckets[1], TargetStatistics[TargetID].ReadCommandSizeBuckets[2], TargetStatistics[TargetID].ReadCommandSizeBuckets[3], TargetStatistics[TargetID].ReadCommandSizeBuckets[4]);
3268 Length +=
3269 sprintf(&Buffer[Length],
3270 " %2d Write %9u %9u %9u %9u %9u\n", TargetID,
3271 TargetStatistics[TargetID].WriteCommandSizeBuckets[0],
3272 TargetStatistics[TargetID].WriteCommandSizeBuckets[1], TargetStatistics[TargetID].WriteCommandSizeBuckets[2], TargetStatistics[TargetID].WriteCommandSizeBuckets[3], TargetStatistics[TargetID].WriteCommandSizeBuckets[4]);
3273 }
3274 Length += sprintf(&Buffer[Length], "\n\
3275Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\
3276====== ======= ========= ========= ========= ========= =========\n");
3277 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3278 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3279 if (!TargetFlags->TargetExists)
3280 continue;
3281 Length +=
3282 sprintf(&Buffer[Length],
3283 " %2d Read %9u %9u %9u %9u %9u\n", TargetID,
3284 TargetStatistics[TargetID].ReadCommandSizeBuckets[5],
3285 TargetStatistics[TargetID].ReadCommandSizeBuckets[6], TargetStatistics[TargetID].ReadCommandSizeBuckets[7], TargetStatistics[TargetID].ReadCommandSizeBuckets[8], TargetStatistics[TargetID].ReadCommandSizeBuckets[9]);
3286 Length +=
3287 sprintf(&Buffer[Length],
3288 " %2d Write %9u %9u %9u %9u %9u\n", TargetID,
3289 TargetStatistics[TargetID].WriteCommandSizeBuckets[5],
3290 TargetStatistics[TargetID].WriteCommandSizeBuckets[6], TargetStatistics[TargetID].WriteCommandSizeBuckets[7], TargetStatistics[TargetID].WriteCommandSizeBuckets[8], TargetStatistics[TargetID].WriteCommandSizeBuckets[9]);
3291 }
3292 Length += sprintf(&Buffer[Length], "\n\n\
3293 ERROR RECOVERY STATISTICS\n\
3294\n\
3295 Command Aborts Bus Device Resets Host Adapter Resets\n\
3296Target Requested Completed Requested Completed Requested Completed\n\
3297 ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\
3298====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n");
3299 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3300 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3301 if (!TargetFlags->TargetExists)
3302 continue;
3303 Length += sprintf(&Buffer[Length], "\
3304 %2d %5d %5d %5d %5d %5d %5d %5d %5d %5d\n", TargetID, TargetStatistics[TargetID].CommandAbortsRequested, TargetStatistics[TargetID].CommandAbortsAttempted, TargetStatistics[TargetID].CommandAbortsCompleted, TargetStatistics[TargetID].BusDeviceResetsRequested, TargetStatistics[TargetID].BusDeviceResetsAttempted, TargetStatistics[TargetID].BusDeviceResetsCompleted, TargetStatistics[TargetID].HostAdapterResetsRequested, TargetStatistics[TargetID].HostAdapterResetsAttempted, TargetStatistics[TargetID].HostAdapterResetsCompleted);
3305 }
3306 Length += sprintf(&Buffer[Length], "\nExternal Host Adapter Resets: %d\n", HostAdapter->ExternalHostAdapterResets);
3307 Length += sprintf(&Buffer[Length], "Host Adapter Internal Errors: %d\n", HostAdapter->HostAdapterInternalErrors);
3308 if (Length >= BusLogic_MessageBufferSize)
3309 BusLogic_Error("Message Buffer length %d exceeds size %d\n", HostAdapter, Length, BusLogic_MessageBufferSize);
3310 if ((Length -= Offset) <= 0)
3311 return 0;
3312 if (Length >= BytesAvailable)
3313 Length = BytesAvailable;
3314 memcpy(ProcBuffer, HostAdapter->MessageBuffer + Offset, Length);
3315 *StartPointer = ProcBuffer;
3316 return Length;
3317}
3318
3319
3320/*
3321 BusLogic_Message prints Driver Messages.
3322*/
3323
3324static void BusLogic_Message(enum BusLogic_MessageLevel MessageLevel, char *Format, struct BusLogic_HostAdapter *HostAdapter, ...)
3325{
3326 static char Buffer[BusLogic_LineBufferSize];
3327 static bool BeginningOfLine = true;
3328 va_list Arguments;
3329 int Length = 0;
3330 va_start(Arguments, HostAdapter);
3331 Length = vsprintf(Buffer, Format, Arguments);
3332 va_end(Arguments);
3333 if (MessageLevel == BusLogic_AnnounceLevel) {
3334 static int AnnouncementLines = 0;
3335 strcpy(&HostAdapter->MessageBuffer[HostAdapter->MessageBufferLength], Buffer);
3336 HostAdapter->MessageBufferLength += Length;
3337 if (++AnnouncementLines <= 2)
3338 printk("%sscsi: %s", BusLogic_MessageLevelMap[MessageLevel], Buffer);
3339 } else if (MessageLevel == BusLogic_InfoLevel) {
3340 strcpy(&HostAdapter->MessageBuffer[HostAdapter->MessageBufferLength], Buffer);
3341 HostAdapter->MessageBufferLength += Length;
3342 if (BeginningOfLine) {
3343 if (Buffer[0] != '\n' || Length > 1)
3344 printk("%sscsi%d: %s", BusLogic_MessageLevelMap[MessageLevel], HostAdapter->HostNumber, Buffer);
3345 } else
3346 printk("%s", Buffer);
3347 } else {
3348 if (BeginningOfLine) {
3349 if (HostAdapter != NULL && HostAdapter->HostAdapterInitialized)
3350 printk("%sscsi%d: %s", BusLogic_MessageLevelMap[MessageLevel], HostAdapter->HostNumber, Buffer);
3351 else
3352 printk("%s%s", BusLogic_MessageLevelMap[MessageLevel], Buffer);
3353 } else
3354 printk("%s", Buffer);
3355 }
3356 BeginningOfLine = (Buffer[Length - 1] == '\n');
3357}
3358
3359
3360/*
3361 BusLogic_ParseKeyword parses an individual option keyword. It returns true
3362 and updates the pointer if the keyword is recognized and false otherwise.
3363*/
3364
3365static bool __init BusLogic_ParseKeyword(char **StringPointer, char *Keyword)
3366{
3367 char *Pointer = *StringPointer;
3368 while (*Keyword != '\0') {
3369 char StringChar = *Pointer++;
3370 char KeywordChar = *Keyword++;
3371 if (StringChar >= 'A' && StringChar <= 'Z')
3372 StringChar += 'a' - 'Z';
3373 if (KeywordChar >= 'A' && KeywordChar <= 'Z')
3374 KeywordChar += 'a' - 'Z';
3375 if (StringChar != KeywordChar)
3376 return false;
3377 }
3378 *StringPointer = Pointer;
3379 return true;
3380}
3381
3382
3383/*
3384 BusLogic_ParseDriverOptions handles processing of BusLogic Driver Options
3385 specifications.
3386
3387 BusLogic Driver Options may be specified either via the Linux Kernel Command
3388 Line or via the Loadable Kernel Module Installation Facility. Driver Options
3389 for multiple host adapters may be specified either by separating the option
3390 strings by a semicolon, or by specifying multiple "BusLogic=" strings on the
3391 command line. Individual option specifications for a single host adapter are
3392 separated by commas. The Probing and Debugging Options apply to all host
3393 adapters whereas the remaining options apply individually only to the
3394 selected host adapter.
3395
3396 The BusLogic Driver Probing Options are described in
3397 <file:Documentation/scsi/BusLogic.txt>.
3398*/
3399
3400static int __init BusLogic_ParseDriverOptions(char *OptionsString)
3401{
3402 while (true) {
3403 struct BusLogic_DriverOptions *DriverOptions = &BusLogic_DriverOptions[BusLogic_DriverOptionsCount++];
3404 int TargetID;
3405 memset(DriverOptions, 0, sizeof(struct BusLogic_DriverOptions));
3406 while (*OptionsString != '\0' && *OptionsString != ';') {
3407 /* Probing Options. */
3408 if (BusLogic_ParseKeyword(&OptionsString, "IO:")) {
3409 unsigned long IO_Address = simple_strtoul(OptionsString, &OptionsString, 0);
3410 BusLogic_ProbeOptions.LimitedProbeISA = true;
3411 switch (IO_Address) {
3412 case 0x330:
3413 BusLogic_ProbeOptions.Probe330 = true;
3414 break;
3415 case 0x334:
3416 BusLogic_ProbeOptions.Probe334 = true;
3417 break;
3418 case 0x230:
3419 BusLogic_ProbeOptions.Probe230 = true;
3420 break;
3421 case 0x234:
3422 BusLogic_ProbeOptions.Probe234 = true;
3423 break;
3424 case 0x130:
3425 BusLogic_ProbeOptions.Probe130 = true;
3426 break;
3427 case 0x134:
3428 BusLogic_ProbeOptions.Probe134 = true;
3429 break;
3430 default:
3431 BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid I/O Address 0x%X)\n", NULL, IO_Address);
3432 return 0;
3433 }
3434 } else if (BusLogic_ParseKeyword(&OptionsString, "NoProbeISA"))
3435 BusLogic_ProbeOptions.NoProbeISA = true;
3436 else if (BusLogic_ParseKeyword(&OptionsString, "NoProbePCI"))
3437 BusLogic_ProbeOptions.NoProbePCI = true;
3438 else if (BusLogic_ParseKeyword(&OptionsString, "NoProbe"))
3439 BusLogic_ProbeOptions.NoProbe = true;
3440 else if (BusLogic_ParseKeyword(&OptionsString, "NoSortPCI"))
3441 BusLogic_ProbeOptions.NoSortPCI = true;
3442 else if (BusLogic_ParseKeyword(&OptionsString, "MultiMasterFirst"))
3443 BusLogic_ProbeOptions.MultiMasterFirst = true;
3444 else if (BusLogic_ParseKeyword(&OptionsString, "FlashPointFirst"))
3445 BusLogic_ProbeOptions.FlashPointFirst = true;
3446 /* Tagged Queuing Options. */
3447 else if (BusLogic_ParseKeyword(&OptionsString, "QueueDepth:[") || BusLogic_ParseKeyword(&OptionsString, "QD:[")) {
3448 for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) {
3449 unsigned short QueueDepth = simple_strtoul(OptionsString, &OptionsString, 0);
3450 if (QueueDepth > BusLogic_MaxTaggedQueueDepth) {
3451 BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, QueueDepth);
3452 return 0;
3453 }
3454 DriverOptions->QueueDepth[TargetID] = QueueDepth;
3455 if (*OptionsString == ',')
3456 OptionsString++;
3457 else if (*OptionsString == ']')
3458 break;
3459 else {
3460 BusLogic_Error("BusLogic: Invalid Driver Options " "(',' or ']' expected at '%s')\n", NULL, OptionsString);
3461 return 0;
3462 }
3463 }
3464 if (*OptionsString != ']') {
3465 BusLogic_Error("BusLogic: Invalid Driver Options " "(']' expected at '%s')\n", NULL, OptionsString);
3466 return 0;
3467 } else
3468 OptionsString++;
3469 } else if (BusLogic_ParseKeyword(&OptionsString, "QueueDepth:") || BusLogic_ParseKeyword(&OptionsString, "QD:")) {
3470 unsigned short QueueDepth = simple_strtoul(OptionsString, &OptionsString, 0);
3471 if (QueueDepth == 0 || QueueDepth > BusLogic_MaxTaggedQueueDepth) {
3472 BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, QueueDepth);
3473 return 0;
3474 }
3475 DriverOptions->CommonQueueDepth = QueueDepth;
3476 for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++)
3477 DriverOptions->QueueDepth[TargetID] = QueueDepth;
3478 } else if (BusLogic_ParseKeyword(&OptionsString, "TaggedQueuing:") || BusLogic_ParseKeyword(&OptionsString, "TQ:")) {
3479 if (BusLogic_ParseKeyword(&OptionsString, "Default")) {
3480 DriverOptions->TaggedQueuingPermitted = 0x0000;
3481 DriverOptions->TaggedQueuingPermittedMask = 0x0000;
3482 } else if (BusLogic_ParseKeyword(&OptionsString, "Enable")) {
3483 DriverOptions->TaggedQueuingPermitted = 0xFFFF;
3484 DriverOptions->TaggedQueuingPermittedMask = 0xFFFF;
3485 } else if (BusLogic_ParseKeyword(&OptionsString, "Disable")) {
3486 DriverOptions->TaggedQueuingPermitted = 0x0000;
3487 DriverOptions->TaggedQueuingPermittedMask = 0xFFFF;
3488 } else {
3489 unsigned short TargetBit;
3490 for (TargetID = 0, TargetBit = 1; TargetID < BusLogic_MaxTargetDevices; TargetID++, TargetBit <<= 1)
3491 switch (*OptionsString++) {
3492 case 'Y':
3493 DriverOptions->TaggedQueuingPermitted |= TargetBit;
3494 DriverOptions->TaggedQueuingPermittedMask |= TargetBit;
3495 break;
3496 case 'N':
3497 DriverOptions->TaggedQueuingPermitted &= ~TargetBit;
3498 DriverOptions->TaggedQueuingPermittedMask |= TargetBit;
3499 break;
3500 case 'X':
3501 break;
3502 default:
3503 OptionsString--;
3504 TargetID = BusLogic_MaxTargetDevices;
3505 break;
3506 }
3507 }
3508 }
3509 /* Miscellaneous Options. */
3510 else if (BusLogic_ParseKeyword(&OptionsString, "BusSettleTime:") || BusLogic_ParseKeyword(&OptionsString, "BST:")) {
3511 unsigned short BusSettleTime = simple_strtoul(OptionsString, &OptionsString, 0);
3512 if (BusSettleTime > 5 * 60) {
3513 BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Bus Settle Time %d)\n", NULL, BusSettleTime);
3514 return 0;
3515 }
3516 DriverOptions->BusSettleTime = BusSettleTime;
3517 } else if (BusLogic_ParseKeyword(&OptionsString, "InhibitTargetInquiry"))
3518 DriverOptions->LocalOptions.InhibitTargetInquiry = true;
3519 /* Debugging Options. */
3520 else if (BusLogic_ParseKeyword(&OptionsString, "TraceProbe"))
3521 BusLogic_GlobalOptions.TraceProbe = true;
3522 else if (BusLogic_ParseKeyword(&OptionsString, "TraceHardwareReset"))
3523 BusLogic_GlobalOptions.TraceHardwareReset = true;
3524 else if (BusLogic_ParseKeyword(&OptionsString, "TraceConfiguration"))
3525 BusLogic_GlobalOptions.TraceConfiguration = true;
3526 else if (BusLogic_ParseKeyword(&OptionsString, "TraceErrors"))
3527 BusLogic_GlobalOptions.TraceErrors = true;
3528 else if (BusLogic_ParseKeyword(&OptionsString, "Debug")) {
3529 BusLogic_GlobalOptions.TraceProbe = true;
3530 BusLogic_GlobalOptions.TraceHardwareReset = true;
3531 BusLogic_GlobalOptions.TraceConfiguration = true;
3532 BusLogic_GlobalOptions.TraceErrors = true;
3533 }
3534 if (*OptionsString == ',')
3535 OptionsString++;
3536 else if (*OptionsString != ';' && *OptionsString != '\0') {
3537 BusLogic_Error("BusLogic: Unexpected Driver Option '%s' " "ignored\n", NULL, OptionsString);
3538 *OptionsString = '\0';
3539 }
3540 }
3541 if (!(BusLogic_DriverOptionsCount == 0 || BusLogic_ProbeInfoCount == 0 || BusLogic_DriverOptionsCount == BusLogic_ProbeInfoCount)) {
3542 BusLogic_Error("BusLogic: Invalid Driver Options " "(all or no I/O Addresses must be specified)\n", NULL);
3543 return 0;
3544 }
3545 /*
3546 Tagged Queuing is disabled when the Queue Depth is 1 since queuing
3547 multiple commands is not possible.
3548 */
3549 for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++)
3550 if (DriverOptions->QueueDepth[TargetID] == 1) {
3551 unsigned short TargetBit = 1 << TargetID;
3552 DriverOptions->TaggedQueuingPermitted &= ~TargetBit;
3553 DriverOptions->TaggedQueuingPermittedMask |= TargetBit;
3554 }
3555 if (*OptionsString == ';')
3556 OptionsString++;
3557 if (*OptionsString == '\0')
3558 return 0;
3559 }
3560 return 1;
3561}
3562
3563/*
3564 Get it all started
3565*/
3566
3567static struct scsi_host_template Bus_Logic_template = {
3568 .module = THIS_MODULE,
3569 .proc_name = "BusLogic",
3570 .proc_info = BusLogic_ProcDirectoryInfo,
3571 .name = "BusLogic",
3572 .info = BusLogic_DriverInfo,
3573 .queuecommand = BusLogic_QueueCommand,
3574 .slave_configure = BusLogic_SlaveConfigure,
3575 .bios_param = BusLogic_BIOSDiskParameters,
3576 .eh_host_reset_handler = BusLogic_host_reset,
3577#if 0
3578 .eh_abort_handler = BusLogic_AbortCommand,
3579#endif
3580 .unchecked_isa_dma = 1,
3581 .max_sectors = 128,
3582 .use_clustering = ENABLE_CLUSTERING,
3583};
3584
3585/*
3586 BusLogic_Setup handles processing of Kernel Command Line Arguments.
3587*/
3588
3589static int __init BusLogic_Setup(char *str)
3590{
3591 int ints[3];
3592
3593 (void) get_options(str, ARRAY_SIZE(ints), ints);
3594
3595 if (ints[0] != 0) {
3596 BusLogic_Error("BusLogic: Obsolete Command Line Entry " "Format Ignored\n", NULL);
3597 return 0;
3598 }
3599 if (str == NULL || *str == '\0')
3600 return 0;
3601 return BusLogic_ParseDriverOptions(str);
3602}
3603
3604/*
3605 * Exit function. Deletes all hosts associated with this driver.
3606 */
3607
3608static void __exit BusLogic_exit(void)
3609{
3610 struct BusLogic_HostAdapter *ha, *next;
3611
3612 list_for_each_entry_safe(ha, next, &BusLogic_host_list, host_list)
3613 BusLogic_ReleaseHostAdapter(ha);
3614}
3615
3616__setup("BusLogic=", BusLogic_Setup);
3617
3618#ifdef MODULE
3619static struct pci_device_id BusLogic_pci_tbl[] __devinitdata = {
3620 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
3621 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3622 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
3623 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3624 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
3625 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3626 { }
3627};
3628#endif
3629MODULE_DEVICE_TABLE(pci, BusLogic_pci_tbl);
3630
3631module_init(BusLogic_init);
3632module_exit(BusLogic_exit);
1// SPDX-License-Identifier: GPL-2.0-only
2
3/*
4
5 Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
6
7 Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
8
9
10 The author respectfully requests that any modifications to this software be
11 sent directly to him for evaluation and testing.
12
13 Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
14 advice has been invaluable, to David Gentzel, for writing the original Linux
15 BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
16
17 Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
18 Manager available as freely redistributable source code.
19
20*/
21
22#define blogic_drvr_version "2.1.17"
23#define blogic_drvr_date "12 September 2013"
24
25#include <linux/module.h>
26#include <linux/init.h>
27#include <linux/interrupt.h>
28#include <linux/types.h>
29#include <linux/blkdev.h>
30#include <linux/delay.h>
31#include <linux/ioport.h>
32#include <linux/mm.h>
33#include <linux/stat.h>
34#include <linux/pci.h>
35#include <linux/spinlock.h>
36#include <linux/jiffies.h>
37#include <linux/dma-mapping.h>
38#include <linux/slab.h>
39#include <scsi/scsicam.h>
40
41#include <asm/dma.h>
42#include <asm/io.h>
43
44#include <scsi/scsi.h>
45#include <scsi/scsi_cmnd.h>
46#include <scsi/scsi_device.h>
47#include <scsi/scsi_host.h>
48#include <scsi/scsi_tcq.h>
49#include "BusLogic.h"
50#include "FlashPoint.c"
51
52#ifndef FAILURE
53#define FAILURE (-1)
54#endif
55
56static struct scsi_host_template blogic_template;
57
58/*
59 blogic_drvr_options_count is a count of the number of BusLogic Driver
60 Options specifications provided via the Linux Kernel Command Line or via
61 the Loadable Kernel Module Installation Facility.
62*/
63
64static int blogic_drvr_options_count;
65
66
67/*
68 blogic_drvr_options is an array of Driver Options structures representing
69 BusLogic Driver Options specifications provided via the Linux Kernel Command
70 Line or via the Loadable Kernel Module Installation Facility.
71*/
72
73static struct blogic_drvr_options blogic_drvr_options[BLOGIC_MAX_ADAPTERS];
74
75
76/*
77 BusLogic can be assigned a string by insmod.
78*/
79
80MODULE_LICENSE("GPL");
81#ifdef MODULE
82static char *BusLogic;
83module_param(BusLogic, charp, 0);
84#endif
85
86
87/*
88 blogic_probe_options is a set of Probe Options to be applied across
89 all BusLogic Host Adapters.
90*/
91
92static struct blogic_probe_options blogic_probe_options;
93
94
95/*
96 blogic_global_options is a set of Global Options to be applied across
97 all BusLogic Host Adapters.
98*/
99
100static struct blogic_global_options blogic_global_options;
101
102static LIST_HEAD(blogic_host_list);
103
104/*
105 blogic_probeinfo_count is the number of entries in blogic_probeinfo_list.
106*/
107
108static int blogic_probeinfo_count;
109
110
111/*
112 blogic_probeinfo_list is the list of I/O Addresses and Bus Probe Information
113 to be checked for potential BusLogic Host Adapters. It is initialized by
114 interrogating the PCI Configuration Space on PCI machines as well as from the
115 list of standard BusLogic I/O Addresses.
116*/
117
118static struct blogic_probeinfo *blogic_probeinfo_list;
119
120
121/*
122 blogic_cmd_failure_reason holds a string identifying the reason why a
123 call to blogic_cmd failed. It is only non-NULL when blogic_cmd
124 returns a failure code.
125*/
126
127static char *blogic_cmd_failure_reason;
128
129/*
130 blogic_announce_drvr announces the Driver Version and Date, Author's
131 Name, Copyright Notice, and Electronic Mail Address.
132*/
133
134static void blogic_announce_drvr(struct blogic_adapter *adapter)
135{
136 blogic_announce("***** BusLogic SCSI Driver Version " blogic_drvr_version " of " blogic_drvr_date " *****\n", adapter);
137 blogic_announce("Copyright 1995-1998 by Leonard N. Zubkoff " "<lnz@dandelion.com>\n", adapter);
138}
139
140
141/*
142 blogic_drvr_info returns the Host Adapter Name to identify this SCSI
143 Driver and Host Adapter.
144*/
145
146static const char *blogic_drvr_info(struct Scsi_Host *host)
147{
148 struct blogic_adapter *adapter =
149 (struct blogic_adapter *) host->hostdata;
150 return adapter->full_model;
151}
152
153/*
154 blogic_init_ccbs initializes a group of Command Control Blocks (CCBs)
155 for Host Adapter from the blk_size bytes located at blk_pointer. The newly
156 created CCBs are added to Host Adapter's free list.
157*/
158
159static void blogic_init_ccbs(struct blogic_adapter *adapter, void *blk_pointer,
160 int blk_size, dma_addr_t blkp)
161{
162 struct blogic_ccb *ccb = (struct blogic_ccb *) blk_pointer;
163 unsigned int offset = 0;
164 memset(blk_pointer, 0, blk_size);
165 ccb->allocgrp_head = blkp;
166 ccb->allocgrp_size = blk_size;
167 while ((blk_size -= sizeof(struct blogic_ccb)) >= 0) {
168 ccb->status = BLOGIC_CCB_FREE;
169 ccb->adapter = adapter;
170 ccb->dma_handle = (u32) blkp + offset;
171 if (blogic_flashpoint_type(adapter)) {
172 ccb->callback = blogic_qcompleted_ccb;
173 ccb->base_addr = adapter->fpinfo.base_addr;
174 }
175 ccb->next = adapter->free_ccbs;
176 ccb->next_all = adapter->all_ccbs;
177 adapter->free_ccbs = ccb;
178 adapter->all_ccbs = ccb;
179 adapter->alloc_ccbs++;
180 ccb++;
181 offset += sizeof(struct blogic_ccb);
182 }
183}
184
185
186/*
187 blogic_create_initccbs allocates the initial CCBs for Host Adapter.
188*/
189
190static bool __init blogic_create_initccbs(struct blogic_adapter *adapter)
191{
192 int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
193 void *blk_pointer;
194 dma_addr_t blkp;
195
196 while (adapter->alloc_ccbs < adapter->initccbs) {
197 blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev,
198 blk_size, &blkp, GFP_KERNEL);
199 if (blk_pointer == NULL) {
200 blogic_err("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n",
201 adapter);
202 return false;
203 }
204 blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
205 }
206 return true;
207}
208
209
210/*
211 blogic_destroy_ccbs deallocates the CCBs for Host Adapter.
212*/
213
214static void blogic_destroy_ccbs(struct blogic_adapter *adapter)
215{
216 struct blogic_ccb *next_ccb = adapter->all_ccbs, *ccb, *lastccb = NULL;
217 adapter->all_ccbs = NULL;
218 adapter->free_ccbs = NULL;
219 while ((ccb = next_ccb) != NULL) {
220 next_ccb = ccb->next_all;
221 if (ccb->allocgrp_head) {
222 if (lastccb)
223 dma_free_coherent(&adapter->pci_device->dev,
224 lastccb->allocgrp_size, lastccb,
225 lastccb->allocgrp_head);
226 lastccb = ccb;
227 }
228 }
229 if (lastccb)
230 dma_free_coherent(&adapter->pci_device->dev,
231 lastccb->allocgrp_size, lastccb,
232 lastccb->allocgrp_head);
233}
234
235
236/*
237 blogic_create_addlccbs allocates Additional CCBs for Host Adapter. If
238 allocation fails and there are no remaining CCBs available, the Driver Queue
239 Depth is decreased to a known safe value to avoid potential deadlocks when
240 multiple host adapters share the same IRQ Channel.
241*/
242
243static void blogic_create_addlccbs(struct blogic_adapter *adapter,
244 int addl_ccbs, bool print_success)
245{
246 int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
247 int prev_alloc = adapter->alloc_ccbs;
248 void *blk_pointer;
249 dma_addr_t blkp;
250 if (addl_ccbs <= 0)
251 return;
252 while (adapter->alloc_ccbs - prev_alloc < addl_ccbs) {
253 blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev,
254 blk_size, &blkp, GFP_KERNEL);
255 if (blk_pointer == NULL)
256 break;
257 blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
258 }
259 if (adapter->alloc_ccbs > prev_alloc) {
260 if (print_success)
261 blogic_notice("Allocated %d additional CCBs (total now %d)\n", adapter, adapter->alloc_ccbs - prev_alloc, adapter->alloc_ccbs);
262 return;
263 }
264 blogic_notice("Failed to allocate additional CCBs\n", adapter);
265 if (adapter->drvr_qdepth > adapter->alloc_ccbs - adapter->tgt_count) {
266 adapter->drvr_qdepth = adapter->alloc_ccbs - adapter->tgt_count;
267 adapter->scsi_host->can_queue = adapter->drvr_qdepth;
268 }
269}
270
271/*
272 blogic_alloc_ccb allocates a CCB from Host Adapter's free list,
273 allocating more memory from the Kernel if necessary. The Host Adapter's
274 Lock should already have been acquired by the caller.
275*/
276
277static struct blogic_ccb *blogic_alloc_ccb(struct blogic_adapter *adapter)
278{
279 static unsigned long serial;
280 struct blogic_ccb *ccb;
281 ccb = adapter->free_ccbs;
282 if (ccb != NULL) {
283 ccb->serial = ++serial;
284 adapter->free_ccbs = ccb->next;
285 ccb->next = NULL;
286 if (adapter->free_ccbs == NULL)
287 blogic_create_addlccbs(adapter, adapter->inc_ccbs,
288 true);
289 return ccb;
290 }
291 blogic_create_addlccbs(adapter, adapter->inc_ccbs, true);
292 ccb = adapter->free_ccbs;
293 if (ccb == NULL)
294 return NULL;
295 ccb->serial = ++serial;
296 adapter->free_ccbs = ccb->next;
297 ccb->next = NULL;
298 return ccb;
299}
300
301
302/*
303 blogic_dealloc_ccb deallocates a CCB, returning it to the Host Adapter's
304 free list. The Host Adapter's Lock should already have been acquired by the
305 caller.
306*/
307
308static void blogic_dealloc_ccb(struct blogic_ccb *ccb, int dma_unmap)
309{
310 struct blogic_adapter *adapter = ccb->adapter;
311
312 if (ccb->command != NULL)
313 scsi_dma_unmap(ccb->command);
314 if (dma_unmap)
315 dma_unmap_single(&adapter->pci_device->dev, ccb->sensedata,
316 ccb->sense_datalen, DMA_FROM_DEVICE);
317
318 ccb->command = NULL;
319 ccb->status = BLOGIC_CCB_FREE;
320 ccb->next = adapter->free_ccbs;
321 adapter->free_ccbs = ccb;
322}
323
324
325/*
326 blogic_cmd sends the command opcode to adapter, optionally
327 providing paramlen bytes of param and receiving at most
328 replylen bytes of reply; any excess reply data is received but
329 discarded.
330
331 On success, this function returns the number of reply bytes read from
332 the Host Adapter (including any discarded data); on failure, it returns
333 -1 if the command was invalid, or -2 if a timeout occurred.
334
335 blogic_cmd is called exclusively during host adapter detection and
336 initialization, so performance and latency are not critical, and exclusive
337 access to the Host Adapter hardware is assumed. Once the host adapter and
338 driver are initialized, the only Host Adapter command that is issued is the
339 single byte Execute Mailbox Command operation code, which does not require
340 waiting for the Host Adapter Ready bit to be set in the Status Register.
341*/
342
343static int blogic_cmd(struct blogic_adapter *adapter, enum blogic_opcode opcode,
344 void *param, int paramlen, void *reply, int replylen)
345{
346 unsigned char *param_p = (unsigned char *) param;
347 unsigned char *reply_p = (unsigned char *) reply;
348 union blogic_stat_reg statusreg;
349 union blogic_int_reg intreg;
350 unsigned long processor_flag = 0;
351 int reply_b = 0, result;
352 long timeout;
353 /*
354 Clear out the Reply Data if provided.
355 */
356 if (replylen > 0)
357 memset(reply, 0, replylen);
358 /*
359 If the IRQ Channel has not yet been acquired, then interrupts
360 must be disabled while issuing host adapter commands since a
361 Command Complete interrupt could occur if the IRQ Channel was
362 previously enabled by another BusLogic Host Adapter or another
363 driver sharing the same IRQ Channel.
364 */
365 if (!adapter->irq_acquired)
366 local_irq_save(processor_flag);
367 /*
368 Wait for the Host Adapter Ready bit to be set and the
369 Command/Parameter Register Busy bit to be reset in the Status
370 Register.
371 */
372 timeout = 10000;
373 while (--timeout >= 0) {
374 statusreg.all = blogic_rdstatus(adapter);
375 if (statusreg.sr.adapter_ready && !statusreg.sr.cmd_param_busy)
376 break;
377 udelay(100);
378 }
379 if (timeout < 0) {
380 blogic_cmd_failure_reason =
381 "Timeout waiting for Host Adapter Ready";
382 result = -2;
383 goto done;
384 }
385 /*
386 Write the opcode to the Command/Parameter Register.
387 */
388 adapter->adapter_cmd_complete = false;
389 blogic_setcmdparam(adapter, opcode);
390 /*
391 Write any additional Parameter Bytes.
392 */
393 timeout = 10000;
394 while (paramlen > 0 && --timeout >= 0) {
395 /*
396 Wait 100 microseconds to give the Host Adapter enough
397 time to determine whether the last value written to the
398 Command/Parameter Register was valid or not. If the
399 Command Complete bit is set in the Interrupt Register,
400 then the Command Invalid bit in the Status Register will
401 be reset if the Operation Code or Parameter was valid
402 and the command has completed, or set if the Operation
403 Code or Parameter was invalid. If the Data In Register
404 Ready bit is set in the Status Register, then the
405 Operation Code was valid, and data is waiting to be read
406 back from the Host Adapter. Otherwise, wait for the
407 Command/Parameter Register Busy bit in the Status
408 Register to be reset.
409 */
410 udelay(100);
411 intreg.all = blogic_rdint(adapter);
412 statusreg.all = blogic_rdstatus(adapter);
413 if (intreg.ir.cmd_complete)
414 break;
415 if (adapter->adapter_cmd_complete)
416 break;
417 if (statusreg.sr.datain_ready)
418 break;
419 if (statusreg.sr.cmd_param_busy)
420 continue;
421 blogic_setcmdparam(adapter, *param_p++);
422 paramlen--;
423 }
424 if (timeout < 0) {
425 blogic_cmd_failure_reason =
426 "Timeout waiting for Parameter Acceptance";
427 result = -2;
428 goto done;
429 }
430 /*
431 The Modify I/O Address command does not cause a Command Complete
432 Interrupt.
433 */
434 if (opcode == BLOGIC_MOD_IOADDR) {
435 statusreg.all = blogic_rdstatus(adapter);
436 if (statusreg.sr.cmd_invalid) {
437 blogic_cmd_failure_reason =
438 "Modify I/O Address Invalid";
439 result = -1;
440 goto done;
441 }
442 if (blogic_global_options.trace_config)
443 blogic_notice("blogic_cmd(%02X) Status = %02X: " "(Modify I/O Address)\n", adapter, opcode, statusreg.all);
444 result = 0;
445 goto done;
446 }
447 /*
448 Select an appropriate timeout value for awaiting command completion.
449 */
450 switch (opcode) {
451 case BLOGIC_INQ_DEV0TO7:
452 case BLOGIC_INQ_DEV8TO15:
453 case BLOGIC_INQ_DEV:
454 /* Approximately 60 seconds. */
455 timeout = 60 * 10000;
456 break;
457 default:
458 /* Approximately 1 second. */
459 timeout = 10000;
460 break;
461 }
462 /*
463 Receive any Reply Bytes, waiting for either the Command
464 Complete bit to be set in the Interrupt Register, or for the
465 Interrupt Handler to set the Host Adapter Command Completed
466 bit in the Host Adapter structure.
467 */
468 while (--timeout >= 0) {
469 intreg.all = blogic_rdint(adapter);
470 statusreg.all = blogic_rdstatus(adapter);
471 if (intreg.ir.cmd_complete)
472 break;
473 if (adapter->adapter_cmd_complete)
474 break;
475 if (statusreg.sr.datain_ready) {
476 if (++reply_b <= replylen)
477 *reply_p++ = blogic_rddatain(adapter);
478 else
479 blogic_rddatain(adapter);
480 }
481 if (opcode == BLOGIC_FETCH_LOCALRAM &&
482 statusreg.sr.adapter_ready)
483 break;
484 udelay(100);
485 }
486 if (timeout < 0) {
487 blogic_cmd_failure_reason =
488 "Timeout waiting for Command Complete";
489 result = -2;
490 goto done;
491 }
492 /*
493 Clear any pending Command Complete Interrupt.
494 */
495 blogic_intreset(adapter);
496 /*
497 Provide tracing information if requested.
498 */
499 if (blogic_global_options.trace_config) {
500 int i;
501 blogic_notice("blogic_cmd(%02X) Status = %02X: %2d ==> %2d:",
502 adapter, opcode, statusreg.all, replylen,
503 reply_b);
504 if (replylen > reply_b)
505 replylen = reply_b;
506 for (i = 0; i < replylen; i++)
507 blogic_notice(" %02X", adapter,
508 ((unsigned char *) reply)[i]);
509 blogic_notice("\n", adapter);
510 }
511 /*
512 Process Command Invalid conditions.
513 */
514 if (statusreg.sr.cmd_invalid) {
515 /*
516 Some early BusLogic Host Adapters may not recover
517 properly from a Command Invalid condition, so if this
518 appears to be the case, a Soft Reset is issued to the
519 Host Adapter. Potentially invalid commands are never
520 attempted after Mailbox Initialization is performed,
521 so there should be no Host Adapter state lost by a
522 Soft Reset in response to a Command Invalid condition.
523 */
524 udelay(1000);
525 statusreg.all = blogic_rdstatus(adapter);
526 if (statusreg.sr.cmd_invalid || statusreg.sr.rsvd ||
527 statusreg.sr.datain_ready ||
528 statusreg.sr.cmd_param_busy ||
529 !statusreg.sr.adapter_ready ||
530 !statusreg.sr.init_reqd ||
531 statusreg.sr.diag_active ||
532 statusreg.sr.diag_failed) {
533 blogic_softreset(adapter);
534 udelay(1000);
535 }
536 blogic_cmd_failure_reason = "Command Invalid";
537 result = -1;
538 goto done;
539 }
540 /*
541 Handle Excess Parameters Supplied conditions.
542 */
543 if (paramlen > 0) {
544 blogic_cmd_failure_reason = "Excess Parameters Supplied";
545 result = -1;
546 goto done;
547 }
548 /*
549 Indicate the command completed successfully.
550 */
551 blogic_cmd_failure_reason = NULL;
552 result = reply_b;
553 /*
554 Restore the interrupt status if necessary and return.
555 */
556done:
557 if (!adapter->irq_acquired)
558 local_irq_restore(processor_flag);
559 return result;
560}
561
562
563/*
564 blogic_add_probeaddr_isa appends a single ISA I/O Address to the list
565 of I/O Address and Bus Probe Information to be checked for potential BusLogic
566 Host Adapters.
567*/
568
569static void __init blogic_add_probeaddr_isa(unsigned long io_addr)
570{
571 struct blogic_probeinfo *probeinfo;
572 if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
573 return;
574 probeinfo = &blogic_probeinfo_list[blogic_probeinfo_count++];
575 probeinfo->adapter_type = BLOGIC_MULTIMASTER;
576 probeinfo->adapter_bus_type = BLOGIC_ISA_BUS;
577 probeinfo->io_addr = io_addr;
578 probeinfo->pci_device = NULL;
579}
580
581
582/*
583 blogic_init_probeinfo_isa initializes the list of I/O Address and
584 Bus Probe Information to be checked for potential BusLogic SCSI Host Adapters
585 only from the list of standard BusLogic MultiMaster ISA I/O Addresses.
586*/
587
588static void __init blogic_init_probeinfo_isa(struct blogic_adapter *adapter)
589{
590 /*
591 If BusLogic Driver Options specifications requested that ISA
592 Bus Probes be inhibited, do not proceed further.
593 */
594 if (blogic_probe_options.noprobe_isa)
595 return;
596 /*
597 Append the list of standard BusLogic MultiMaster ISA I/O Addresses.
598 */
599 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe330)
600 blogic_add_probeaddr_isa(0x330);
601 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe334)
602 blogic_add_probeaddr_isa(0x334);
603 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe230)
604 blogic_add_probeaddr_isa(0x230);
605 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe234)
606 blogic_add_probeaddr_isa(0x234);
607 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe130)
608 blogic_add_probeaddr_isa(0x130);
609 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe134)
610 blogic_add_probeaddr_isa(0x134);
611}
612
613
614#ifdef CONFIG_PCI
615
616
617/*
618 blogic_sort_probeinfo sorts a section of blogic_probeinfo_list in order
619 of increasing PCI Bus and Device Number.
620*/
621
622static void __init blogic_sort_probeinfo(struct blogic_probeinfo
623 *probeinfo_list, int probeinfo_cnt)
624{
625 int last_exchange = probeinfo_cnt - 1, bound, j;
626
627 while (last_exchange > 0) {
628 bound = last_exchange;
629 last_exchange = 0;
630 for (j = 0; j < bound; j++) {
631 struct blogic_probeinfo *probeinfo1 =
632 &probeinfo_list[j];
633 struct blogic_probeinfo *probeinfo2 =
634 &probeinfo_list[j + 1];
635 if (probeinfo1->bus > probeinfo2->bus ||
636 (probeinfo1->bus == probeinfo2->bus &&
637 (probeinfo1->dev > probeinfo2->dev))) {
638 struct blogic_probeinfo tmp_probeinfo;
639
640 memcpy(&tmp_probeinfo, probeinfo1,
641 sizeof(struct blogic_probeinfo));
642 memcpy(probeinfo1, probeinfo2,
643 sizeof(struct blogic_probeinfo));
644 memcpy(probeinfo2, &tmp_probeinfo,
645 sizeof(struct blogic_probeinfo));
646 last_exchange = j;
647 }
648 }
649 }
650}
651
652
653/*
654 blogic_init_mm_probeinfo initializes the list of I/O Address
655 and Bus Probe Information to be checked for potential BusLogic MultiMaster
656 SCSI Host Adapters by interrogating the PCI Configuration Space on PCI
657 machines as well as from the list of standard BusLogic MultiMaster ISA
658 I/O Addresses. It returns the number of PCI MultiMaster Host Adapters found.
659*/
660
661static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter)
662{
663 struct blogic_probeinfo *pr_probeinfo =
664 &blogic_probeinfo_list[blogic_probeinfo_count];
665 int nonpr_mmindex = blogic_probeinfo_count + 1;
666 int nonpr_mmcount = 0, mmcount = 0;
667 bool force_scan_order = false;
668 bool force_scan_order_checked = false;
669 bool addr_seen[6];
670 struct pci_dev *pci_device = NULL;
671 int i;
672 if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
673 return 0;
674 blogic_probeinfo_count++;
675 for (i = 0; i < 6; i++)
676 addr_seen[i] = false;
677 /*
678 Iterate over the MultiMaster PCI Host Adapters. For each
679 enumerated host adapter, determine whether its ISA Compatible
680 I/O Port is enabled and if so, whether it is assigned the
681 Primary I/O Address. A host adapter that is assigned the
682 Primary I/O Address will always be the preferred boot device.
683 The MultiMaster BIOS will first recognize a host adapter at
684 the Primary I/O Address, then any other PCI host adapters,
685 and finally any host adapters located at the remaining
686 standard ISA I/O Addresses. When a PCI host adapter is found
687 with its ISA Compatible I/O Port enabled, a command is issued
688 to disable the ISA Compatible I/O Port, and it is noted that the
689 particular standard ISA I/O Address need not be probed.
690 */
691 pr_probeinfo->io_addr = 0;
692 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
693 PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
694 pci_device)) != NULL) {
695 struct blogic_adapter *host_adapter = adapter;
696 struct blogic_adapter_info adapter_info;
697 enum blogic_isa_ioport mod_ioaddr_req;
698 unsigned char bus;
699 unsigned char device;
700 unsigned int irq_ch;
701 unsigned long base_addr0;
702 unsigned long base_addr1;
703 unsigned long io_addr;
704 unsigned long pci_addr;
705
706 if (pci_enable_device(pci_device))
707 continue;
708
709 if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
710 continue;
711
712 bus = pci_device->bus->number;
713 device = pci_device->devfn >> 3;
714 irq_ch = pci_device->irq;
715 io_addr = base_addr0 = pci_resource_start(pci_device, 0);
716 pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
717
718 if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
719 blogic_err("BusLogic: Base Address0 0x%X not I/O for " "MultiMaster Host Adapter\n", NULL, base_addr0);
720 blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
721 continue;
722 }
723 if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
724 blogic_err("BusLogic: Base Address1 0x%X not Memory for " "MultiMaster Host Adapter\n", NULL, base_addr1);
725 blogic_err("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, bus, device, pci_addr);
726 continue;
727 }
728 if (irq_ch == 0) {
729 blogic_err("BusLogic: IRQ Channel %d invalid for " "MultiMaster Host Adapter\n", NULL, irq_ch);
730 blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
731 continue;
732 }
733 if (blogic_global_options.trace_probe) {
734 blogic_notice("BusLogic: PCI MultiMaster Host Adapter " "detected at\n", NULL);
735 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);
736 }
737 /*
738 Issue the Inquire PCI Host Adapter Information command to determine
739 the ISA Compatible I/O Port. If the ISA Compatible I/O Port is
740 known and enabled, note that the particular Standard ISA I/O
741 Address should not be probed.
742 */
743 host_adapter->io_addr = io_addr;
744 blogic_intreset(host_adapter);
745 if (blogic_cmd(host_adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
746 &adapter_info, sizeof(adapter_info)) ==
747 sizeof(adapter_info)) {
748 if (adapter_info.isa_port < 6)
749 addr_seen[adapter_info.isa_port] = true;
750 } else
751 adapter_info.isa_port = BLOGIC_IO_DISABLE;
752 /*
753 Issue the Modify I/O Address command to disable the
754 ISA Compatible I/O Port. On PCI Host Adapters, the
755 Modify I/O Address command allows modification of the
756 ISA compatible I/O Address that the Host Adapter
757 responds to; it does not affect the PCI compliant
758 I/O Address assigned at system initialization.
759 */
760 mod_ioaddr_req = BLOGIC_IO_DISABLE;
761 blogic_cmd(host_adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req,
762 sizeof(mod_ioaddr_req), NULL, 0);
763 /*
764 For the first MultiMaster Host Adapter enumerated,
765 issue the Fetch Host Adapter Local RAM command to read
766 byte 45 of the AutoSCSI area, for the setting of the
767 "Use Bus And Device # For PCI Scanning Seq." option.
768 Issue the Inquire Board ID command since this option is
769 only valid for the BT-948/958/958D.
770 */
771 if (!force_scan_order_checked) {
772 struct blogic_fetch_localram fetch_localram;
773 struct blogic_autoscsi_byte45 autoscsi_byte45;
774 struct blogic_board_id id;
775
776 fetch_localram.offset = BLOGIC_AUTOSCSI_BASE + 45;
777 fetch_localram.count = sizeof(autoscsi_byte45);
778 blogic_cmd(host_adapter, BLOGIC_FETCH_LOCALRAM,
779 &fetch_localram, sizeof(fetch_localram),
780 &autoscsi_byte45,
781 sizeof(autoscsi_byte45));
782 blogic_cmd(host_adapter, BLOGIC_GET_BOARD_ID, NULL, 0,
783 &id, sizeof(id));
784 if (id.fw_ver_digit1 == '5')
785 force_scan_order =
786 autoscsi_byte45.force_scan_order;
787 force_scan_order_checked = true;
788 }
789 /*
790 Determine whether this MultiMaster Host Adapter has its
791 ISA Compatible I/O Port enabled and is assigned the
792 Primary I/O Address. If it does, then it is the Primary
793 MultiMaster Host Adapter and must be recognized first.
794 If it does not, then it is added to the list for probing
795 after any Primary MultiMaster Host Adapter is probed.
796 */
797 if (adapter_info.isa_port == BLOGIC_IO_330) {
798 pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
799 pr_probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
800 pr_probeinfo->io_addr = io_addr;
801 pr_probeinfo->pci_addr = pci_addr;
802 pr_probeinfo->bus = bus;
803 pr_probeinfo->dev = device;
804 pr_probeinfo->irq_ch = irq_ch;
805 pr_probeinfo->pci_device = pci_dev_get(pci_device);
806 mmcount++;
807 } else if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
808 struct blogic_probeinfo *probeinfo =
809 &blogic_probeinfo_list[blogic_probeinfo_count++];
810 probeinfo->adapter_type = BLOGIC_MULTIMASTER;
811 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
812 probeinfo->io_addr = io_addr;
813 probeinfo->pci_addr = pci_addr;
814 probeinfo->bus = bus;
815 probeinfo->dev = device;
816 probeinfo->irq_ch = irq_ch;
817 probeinfo->pci_device = pci_dev_get(pci_device);
818 nonpr_mmcount++;
819 mmcount++;
820 } else
821 blogic_warn("BusLogic: Too many Host Adapters " "detected\n", NULL);
822 }
823 /*
824 If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq."
825 option is ON for the first enumerated MultiMaster Host Adapter,
826 and if that host adapter is a BT-948/958/958D, then the
827 MultiMaster BIOS will recognize MultiMaster Host Adapters in
828 the order of increasing PCI Bus and Device Number. In that case,
829 sort the probe information into the same order the BIOS uses.
830 If this option is OFF, then the MultiMaster BIOS will recognize
831 MultiMaster Host Adapters in the order they are enumerated by
832 the PCI BIOS, and hence no sorting is necessary.
833 */
834 if (force_scan_order)
835 blogic_sort_probeinfo(&blogic_probeinfo_list[nonpr_mmindex],
836 nonpr_mmcount);
837 /*
838 If no PCI MultiMaster Host Adapter is assigned the Primary
839 I/O Address, then the Primary I/O Address must be probed
840 explicitly before any PCI host adapters are probed.
841 */
842 if (!blogic_probe_options.noprobe_isa)
843 if (pr_probeinfo->io_addr == 0 &&
844 (!blogic_probe_options.limited_isa ||
845 blogic_probe_options.probe330)) {
846 pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
847 pr_probeinfo->adapter_bus_type = BLOGIC_ISA_BUS;
848 pr_probeinfo->io_addr = 0x330;
849 }
850 /*
851 Append the list of standard BusLogic MultiMaster ISA I/O Addresses,
852 omitting the Primary I/O Address which has already been handled.
853 */
854 if (!blogic_probe_options.noprobe_isa) {
855 if (!addr_seen[1] &&
856 (!blogic_probe_options.limited_isa ||
857 blogic_probe_options.probe334))
858 blogic_add_probeaddr_isa(0x334);
859 if (!addr_seen[2] &&
860 (!blogic_probe_options.limited_isa ||
861 blogic_probe_options.probe230))
862 blogic_add_probeaddr_isa(0x230);
863 if (!addr_seen[3] &&
864 (!blogic_probe_options.limited_isa ||
865 blogic_probe_options.probe234))
866 blogic_add_probeaddr_isa(0x234);
867 if (!addr_seen[4] &&
868 (!blogic_probe_options.limited_isa ||
869 blogic_probe_options.probe130))
870 blogic_add_probeaddr_isa(0x130);
871 if (!addr_seen[5] &&
872 (!blogic_probe_options.limited_isa ||
873 blogic_probe_options.probe134))
874 blogic_add_probeaddr_isa(0x134);
875 }
876 /*
877 Iterate over the older non-compliant MultiMaster PCI Host Adapters,
878 noting the PCI bus location and assigned IRQ Channel.
879 */
880 pci_device = NULL;
881 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
882 PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
883 pci_device)) != NULL) {
884 unsigned char bus;
885 unsigned char device;
886 unsigned int irq_ch;
887 unsigned long io_addr;
888
889 if (pci_enable_device(pci_device))
890 continue;
891
892 if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
893 continue;
894
895 bus = pci_device->bus->number;
896 device = pci_device->devfn >> 3;
897 irq_ch = pci_device->irq;
898 io_addr = pci_resource_start(pci_device, 0);
899
900 if (io_addr == 0 || irq_ch == 0)
901 continue;
902 for (i = 0; i < blogic_probeinfo_count; i++) {
903 struct blogic_probeinfo *probeinfo =
904 &blogic_probeinfo_list[i];
905 if (probeinfo->io_addr == io_addr &&
906 probeinfo->adapter_type == BLOGIC_MULTIMASTER) {
907 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
908 probeinfo->pci_addr = 0;
909 probeinfo->bus = bus;
910 probeinfo->dev = device;
911 probeinfo->irq_ch = irq_ch;
912 probeinfo->pci_device = pci_dev_get(pci_device);
913 break;
914 }
915 }
916 }
917 return mmcount;
918}
919
920
921/*
922 blogic_init_fp_probeinfo initializes the list of I/O Address
923 and Bus Probe Information to be checked for potential BusLogic FlashPoint
924 Host Adapters by interrogating the PCI Configuration Space. It returns the
925 number of FlashPoint Host Adapters found.
926*/
927
928static int __init blogic_init_fp_probeinfo(struct blogic_adapter *adapter)
929{
930 int fpindex = blogic_probeinfo_count, fpcount = 0;
931 struct pci_dev *pci_device = NULL;
932 /*
933 Interrogate PCI Configuration Space for any FlashPoint Host Adapters.
934 */
935 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
936 PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
937 pci_device)) != NULL) {
938 unsigned char bus;
939 unsigned char device;
940 unsigned int irq_ch;
941 unsigned long base_addr0;
942 unsigned long base_addr1;
943 unsigned long io_addr;
944 unsigned long pci_addr;
945
946 if (pci_enable_device(pci_device))
947 continue;
948
949 if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
950 continue;
951
952 bus = pci_device->bus->number;
953 device = pci_device->devfn >> 3;
954 irq_ch = pci_device->irq;
955 io_addr = base_addr0 = pci_resource_start(pci_device, 0);
956 pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
957#ifdef CONFIG_SCSI_FLASHPOINT
958 if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
959 blogic_err("BusLogic: Base Address0 0x%X not I/O for " "FlashPoint Host Adapter\n", NULL, base_addr0);
960 blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
961 continue;
962 }
963 if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
964 blogic_err("BusLogic: Base Address1 0x%X not Memory for " "FlashPoint Host Adapter\n", NULL, base_addr1);
965 blogic_err("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, bus, device, pci_addr);
966 continue;
967 }
968 if (irq_ch == 0) {
969 blogic_err("BusLogic: IRQ Channel %d invalid for " "FlashPoint Host Adapter\n", NULL, irq_ch);
970 blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
971 continue;
972 }
973 if (blogic_global_options.trace_probe) {
974 blogic_notice("BusLogic: FlashPoint Host Adapter " "detected at\n", NULL);
975 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);
976 }
977 if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
978 struct blogic_probeinfo *probeinfo =
979 &blogic_probeinfo_list[blogic_probeinfo_count++];
980 probeinfo->adapter_type = BLOGIC_FLASHPOINT;
981 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
982 probeinfo->io_addr = io_addr;
983 probeinfo->pci_addr = pci_addr;
984 probeinfo->bus = bus;
985 probeinfo->dev = device;
986 probeinfo->irq_ch = irq_ch;
987 probeinfo->pci_device = pci_dev_get(pci_device);
988 fpcount++;
989 } else
990 blogic_warn("BusLogic: Too many Host Adapters " "detected\n", NULL);
991#else
992 blogic_err("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", NULL, bus, device);
993 blogic_err("BusLogic: I/O Address 0x%X PCI Address 0x%X, irq %d, " "but FlashPoint\n", NULL, io_addr, pci_addr, irq_ch);
994 blogic_err("BusLogic: support was omitted in this kernel " "configuration.\n", NULL);
995#endif
996 }
997 /*
998 The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of
999 increasing PCI Bus and Device Number, so sort the probe information into
1000 the same order the BIOS uses.
1001 */
1002 blogic_sort_probeinfo(&blogic_probeinfo_list[fpindex], fpcount);
1003 return fpcount;
1004}
1005
1006
1007/*
1008 blogic_init_probeinfo_list initializes the list of I/O Address and Bus
1009 Probe Information to be checked for potential BusLogic SCSI Host Adapters by
1010 interrogating the PCI Configuration Space on PCI machines as well as from the
1011 list of standard BusLogic MultiMaster ISA I/O Addresses. By default, if both
1012 FlashPoint and PCI MultiMaster Host Adapters are present, this driver will
1013 probe for FlashPoint Host Adapters first unless the BIOS primary disk is
1014 controlled by the first PCI MultiMaster Host Adapter, in which case
1015 MultiMaster Host Adapters will be probed first. The BusLogic Driver Options
1016 specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force
1017 a particular probe order.
1018*/
1019
1020static void __init blogic_init_probeinfo_list(struct blogic_adapter *adapter)
1021{
1022 /*
1023 If a PCI BIOS is present, interrogate it for MultiMaster and
1024 FlashPoint Host Adapters; otherwise, default to the standard
1025 ISA MultiMaster probe.
1026 */
1027 if (!blogic_probe_options.noprobe_pci) {
1028 if (blogic_probe_options.multimaster_first) {
1029 blogic_init_mm_probeinfo(adapter);
1030 blogic_init_fp_probeinfo(adapter);
1031 } else if (blogic_probe_options.flashpoint_first) {
1032 blogic_init_fp_probeinfo(adapter);
1033 blogic_init_mm_probeinfo(adapter);
1034 } else {
1035 int fpcount = blogic_init_fp_probeinfo(adapter);
1036 int mmcount = blogic_init_mm_probeinfo(adapter);
1037 if (fpcount > 0 && mmcount > 0) {
1038 struct blogic_probeinfo *probeinfo =
1039 &blogic_probeinfo_list[fpcount];
1040 struct blogic_adapter *myadapter = adapter;
1041 struct blogic_fetch_localram fetch_localram;
1042 struct blogic_bios_drvmap d0_mapbyte;
1043
1044 while (probeinfo->adapter_bus_type !=
1045 BLOGIC_PCI_BUS)
1046 probeinfo++;
1047 myadapter->io_addr = probeinfo->io_addr;
1048 fetch_localram.offset =
1049 BLOGIC_BIOS_BASE + BLOGIC_BIOS_DRVMAP;
1050 fetch_localram.count = sizeof(d0_mapbyte);
1051 blogic_cmd(myadapter, BLOGIC_FETCH_LOCALRAM,
1052 &fetch_localram,
1053 sizeof(fetch_localram),
1054 &d0_mapbyte,
1055 sizeof(d0_mapbyte));
1056 /*
1057 If the Map Byte for BIOS Drive 0 indicates
1058 that BIOS Drive 0 is controlled by this
1059 PCI MultiMaster Host Adapter, then reverse
1060 the probe order so that MultiMaster Host
1061 Adapters are probed before FlashPoint Host
1062 Adapters.
1063 */
1064 if (d0_mapbyte.diskgeom != BLOGIC_BIOS_NODISK) {
1065 struct blogic_probeinfo saved_probeinfo[BLOGIC_MAX_ADAPTERS];
1066 int mmcount = blogic_probeinfo_count - fpcount;
1067
1068 memcpy(saved_probeinfo,
1069 blogic_probeinfo_list,
1070 blogic_probeinfo_count * sizeof(struct blogic_probeinfo));
1071 memcpy(&blogic_probeinfo_list[0],
1072 &saved_probeinfo[fpcount],
1073 mmcount * sizeof(struct blogic_probeinfo));
1074 memcpy(&blogic_probeinfo_list[mmcount],
1075 &saved_probeinfo[0],
1076 fpcount * sizeof(struct blogic_probeinfo));
1077 }
1078 }
1079 }
1080 } else {
1081 blogic_init_probeinfo_isa(adapter);
1082 }
1083}
1084
1085
1086#else
1087#define blogic_init_probeinfo_list(adapter) \
1088 blogic_init_probeinfo_isa(adapter)
1089#endif /* CONFIG_PCI */
1090
1091
1092/*
1093 blogic_failure prints a standardized error message, and then returns false.
1094*/
1095
1096static bool blogic_failure(struct blogic_adapter *adapter, char *msg)
1097{
1098 blogic_announce_drvr(adapter);
1099 if (adapter->adapter_bus_type == BLOGIC_PCI_BUS) {
1100 blogic_err("While configuring BusLogic PCI Host Adapter at\n",
1101 adapter);
1102 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);
1103 } else
1104 blogic_err("While configuring BusLogic Host Adapter at " "I/O Address 0x%X:\n", adapter, adapter->io_addr);
1105 blogic_err("%s FAILED - DETACHING\n", adapter, msg);
1106 if (blogic_cmd_failure_reason != NULL)
1107 blogic_err("ADDITIONAL FAILURE INFO - %s\n", adapter,
1108 blogic_cmd_failure_reason);
1109 return false;
1110}
1111
1112
1113/*
1114 blogic_probe probes for a BusLogic Host Adapter.
1115*/
1116
1117static bool __init blogic_probe(struct blogic_adapter *adapter)
1118{
1119 union blogic_stat_reg statusreg;
1120 union blogic_int_reg intreg;
1121 union blogic_geo_reg georeg;
1122 /*
1123 FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager.
1124 */
1125 if (blogic_flashpoint_type(adapter)) {
1126 struct fpoint_info *fpinfo = &adapter->fpinfo;
1127 fpinfo->base_addr = (u32) adapter->io_addr;
1128 fpinfo->irq_ch = adapter->irq_ch;
1129 fpinfo->present = false;
1130 if (!(FlashPoint_ProbeHostAdapter(fpinfo) == 0 &&
1131 fpinfo->present)) {
1132 blogic_err("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", adapter, adapter->bus, adapter->dev);
1133 blogic_err("BusLogic: I/O Address 0x%X PCI Address 0x%X, " "but FlashPoint\n", adapter, adapter->io_addr, adapter->pci_addr);
1134 blogic_err("BusLogic: Probe Function failed to validate it.\n", adapter);
1135 return false;
1136 }
1137 if (blogic_global_options.trace_probe)
1138 blogic_notice("BusLogic_Probe(0x%X): FlashPoint Found\n", adapter, adapter->io_addr);
1139 /*
1140 Indicate the Host Adapter Probe completed successfully.
1141 */
1142 return true;
1143 }
1144 /*
1145 Read the Status, Interrupt, and Geometry Registers to test if there are I/O
1146 ports that respond, and to check the values to determine if they are from a
1147 BusLogic Host Adapter. A nonexistent I/O port will return 0xFF, in which
1148 case there is definitely no BusLogic Host Adapter at this base I/O Address.
1149 The test here is a subset of that used by the BusLogic Host Adapter BIOS.
1150 */
1151 statusreg.all = blogic_rdstatus(adapter);
1152 intreg.all = blogic_rdint(adapter);
1153 georeg.all = blogic_rdgeom(adapter);
1154 if (blogic_global_options.trace_probe)
1155 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);
1156 if (statusreg.all == 0 || statusreg.sr.diag_active ||
1157 statusreg.sr.cmd_param_busy || statusreg.sr.rsvd ||
1158 statusreg.sr.cmd_invalid || intreg.ir.rsvd != 0)
1159 return false;
1160 /*
1161 Check the undocumented Geometry Register to test if there is
1162 an I/O port that responded. Adaptec Host Adapters do not
1163 implement the Geometry Register, so this test helps serve to
1164 avoid incorrectly recognizing an Adaptec 1542A or 1542B as a
1165 BusLogic. Unfortunately, the Adaptec 1542C series does respond
1166 to the Geometry Register I/O port, but it will be rejected
1167 later when the Inquire Extended Setup Information command is
1168 issued in blogic_checkadapter. The AMI FastDisk Host Adapter
1169 is a BusLogic clone that implements the same interface as
1170 earlier BusLogic Host Adapters, including the undocumented
1171 commands, and is therefore supported by this driver. However,
1172 the AMI FastDisk always returns 0x00 upon reading the Geometry
1173 Register, so the extended translation option should always be
1174 left disabled on the AMI FastDisk.
1175 */
1176 if (georeg.all == 0xFF)
1177 return false;
1178 /*
1179 Indicate the Host Adapter Probe completed successfully.
1180 */
1181 return true;
1182}
1183
1184
1185/*
1186 blogic_hwreset issues a Hardware Reset to the Host Adapter
1187 and waits for Host Adapter Diagnostics to complete. If hard_reset is true, a
1188 Hard Reset is performed which also initiates a SCSI Bus Reset. Otherwise, a
1189 Soft Reset is performed which only resets the Host Adapter without forcing a
1190 SCSI Bus Reset.
1191*/
1192
1193static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset)
1194{
1195 union blogic_stat_reg statusreg;
1196 int timeout;
1197 /*
1198 FlashPoint Host Adapters are Hard Reset by the FlashPoint
1199 SCCB Manager.
1200 */
1201 if (blogic_flashpoint_type(adapter)) {
1202 struct fpoint_info *fpinfo = &adapter->fpinfo;
1203 fpinfo->softreset = !hard_reset;
1204 fpinfo->report_underrun = true;
1205 adapter->cardhandle =
1206 FlashPoint_HardwareResetHostAdapter(fpinfo);
1207 if (adapter->cardhandle == (void *)FPOINT_BADCARD_HANDLE)
1208 return false;
1209 /*
1210 Indicate the Host Adapter Hard Reset completed successfully.
1211 */
1212 return true;
1213 }
1214 /*
1215 Issue a Hard Reset or Soft Reset Command to the Host Adapter.
1216 The Host Adapter should respond by setting Diagnostic Active in
1217 the Status Register.
1218 */
1219 if (hard_reset)
1220 blogic_hardreset(adapter);
1221 else
1222 blogic_softreset(adapter);
1223 /*
1224 Wait until Diagnostic Active is set in the Status Register.
1225 */
1226 timeout = 5 * 10000;
1227 while (--timeout >= 0) {
1228 statusreg.all = blogic_rdstatus(adapter);
1229 if (statusreg.sr.diag_active)
1230 break;
1231 udelay(100);
1232 }
1233 if (blogic_global_options.trace_hw_reset)
1234 blogic_notice("BusLogic_HardwareReset(0x%X): Diagnostic Active, " "Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1235 if (timeout < 0)
1236 return false;
1237 /*
1238 Wait 100 microseconds to allow completion of any initial diagnostic
1239 activity which might leave the contents of the Status Register
1240 unpredictable.
1241 */
1242 udelay(100);
1243 /*
1244 Wait until Diagnostic Active is reset in the Status Register.
1245 */
1246 timeout = 10 * 10000;
1247 while (--timeout >= 0) {
1248 statusreg.all = blogic_rdstatus(adapter);
1249 if (!statusreg.sr.diag_active)
1250 break;
1251 udelay(100);
1252 }
1253 if (blogic_global_options.trace_hw_reset)
1254 blogic_notice("BusLogic_HardwareReset(0x%X): Diagnostic Completed, " "Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1255 if (timeout < 0)
1256 return false;
1257 /*
1258 Wait until at least one of the Diagnostic Failure, Host Adapter
1259 Ready, or Data In Register Ready bits is set in the Status Register.
1260 */
1261 timeout = 10000;
1262 while (--timeout >= 0) {
1263 statusreg.all = blogic_rdstatus(adapter);
1264 if (statusreg.sr.diag_failed || statusreg.sr.adapter_ready ||
1265 statusreg.sr.datain_ready)
1266 break;
1267 udelay(100);
1268 }
1269 if (blogic_global_options.trace_hw_reset)
1270 blogic_notice("BusLogic_HardwareReset(0x%X): Host Adapter Ready, " "Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1271 if (timeout < 0)
1272 return false;
1273 /*
1274 If Diagnostic Failure is set or Host Adapter Ready is reset,
1275 then an error occurred during the Host Adapter diagnostics.
1276 If Data In Register Ready is set, then there is an Error Code
1277 available.
1278 */
1279 if (statusreg.sr.diag_failed || !statusreg.sr.adapter_ready) {
1280 blogic_cmd_failure_reason = NULL;
1281 blogic_failure(adapter, "HARD RESET DIAGNOSTICS");
1282 blogic_err("HOST ADAPTER STATUS REGISTER = %02X\n", adapter,
1283 statusreg.all);
1284 if (statusreg.sr.datain_ready)
1285 blogic_err("HOST ADAPTER ERROR CODE = %d\n", adapter,
1286 blogic_rddatain(adapter));
1287 return false;
1288 }
1289 /*
1290 Indicate the Host Adapter Hard Reset completed successfully.
1291 */
1292 return true;
1293}
1294
1295
1296/*
1297 blogic_checkadapter checks to be sure this really is a BusLogic
1298 Host Adapter.
1299*/
1300
1301static bool __init blogic_checkadapter(struct blogic_adapter *adapter)
1302{
1303 struct blogic_ext_setup ext_setupinfo;
1304 unsigned char req_replylen;
1305 bool result = true;
1306 /*
1307 FlashPoint Host Adapters do not require this protection.
1308 */
1309 if (blogic_flashpoint_type(adapter))
1310 return true;
1311 /*
1312 Issue the Inquire Extended Setup Information command. Only genuine
1313 BusLogic Host Adapters and true clones support this command.
1314 Adaptec 1542C series Host Adapters that respond to the Geometry
1315 Register I/O port will fail this command.
1316 */
1317 req_replylen = sizeof(ext_setupinfo);
1318 if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
1319 sizeof(req_replylen), &ext_setupinfo,
1320 sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
1321 result = false;
1322 /*
1323 Provide tracing information if requested and return.
1324 */
1325 if (blogic_global_options.trace_probe)
1326 blogic_notice("BusLogic_Check(0x%X): MultiMaster %s\n", adapter,
1327 adapter->io_addr,
1328 (result ? "Found" : "Not Found"));
1329 return result;
1330}
1331
1332
1333/*
1334 blogic_rdconfig reads the Configuration Information
1335 from Host Adapter and initializes the Host Adapter structure.
1336*/
1337
1338static bool __init blogic_rdconfig(struct blogic_adapter *adapter)
1339{
1340 struct blogic_board_id id;
1341 struct blogic_config config;
1342 struct blogic_setup_info setupinfo;
1343 struct blogic_ext_setup ext_setupinfo;
1344 unsigned char model[5];
1345 unsigned char fw_ver_digit3;
1346 unsigned char fw_ver_letter;
1347 struct blogic_adapter_info adapter_info;
1348 struct blogic_fetch_localram fetch_localram;
1349 struct blogic_autoscsi autoscsi;
1350 union blogic_geo_reg georeg;
1351 unsigned char req_replylen;
1352 unsigned char *tgt, ch;
1353 int tgt_id, i;
1354 /*
1355 Configuration Information for FlashPoint Host Adapters is
1356 provided in the fpoint_info structure by the FlashPoint
1357 SCCB Manager's Probe Function. Initialize fields in the
1358 Host Adapter structure from the fpoint_info structure.
1359 */
1360 if (blogic_flashpoint_type(adapter)) {
1361 struct fpoint_info *fpinfo = &adapter->fpinfo;
1362 tgt = adapter->model;
1363 *tgt++ = 'B';
1364 *tgt++ = 'T';
1365 *tgt++ = '-';
1366 for (i = 0; i < sizeof(fpinfo->model); i++)
1367 *tgt++ = fpinfo->model[i];
1368 *tgt++ = '\0';
1369 strcpy(adapter->fw_ver, FLASHPOINT_FW_VER);
1370 adapter->scsi_id = fpinfo->scsi_id;
1371 adapter->ext_trans_enable = fpinfo->ext_trans_enable;
1372 adapter->parity = fpinfo->parity;
1373 adapter->reset_enabled = !fpinfo->softreset;
1374 adapter->level_int = true;
1375 adapter->wide = fpinfo->wide;
1376 adapter->differential = false;
1377 adapter->scam = true;
1378 adapter->ultra = true;
1379 adapter->ext_lun = true;
1380 adapter->terminfo_valid = true;
1381 adapter->low_term = fpinfo->low_term;
1382 adapter->high_term = fpinfo->high_term;
1383 adapter->scam_enabled = fpinfo->scam_enabled;
1384 adapter->scam_lev2 = fpinfo->scam_lev2;
1385 adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
1386 adapter->maxdev = (adapter->wide ? 16 : 8);
1387 adapter->maxlun = 32;
1388 adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
1389 adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
1390 adapter->drvr_qdepth = 255;
1391 adapter->adapter_qdepth = adapter->drvr_qdepth;
1392 adapter->sync_ok = fpinfo->sync_ok;
1393 adapter->fast_ok = fpinfo->fast_ok;
1394 adapter->ultra_ok = fpinfo->ultra_ok;
1395 adapter->wide_ok = fpinfo->wide_ok;
1396 adapter->discon_ok = fpinfo->discon_ok;
1397 adapter->tagq_ok = 0xFFFF;
1398 goto common;
1399 }
1400 /*
1401 Issue the Inquire Board ID command.
1402 */
1403 if (blogic_cmd(adapter, BLOGIC_GET_BOARD_ID, NULL, 0, &id,
1404 sizeof(id)) != sizeof(id))
1405 return blogic_failure(adapter, "INQUIRE BOARD ID");
1406 /*
1407 Issue the Inquire Configuration command.
1408 */
1409 if (blogic_cmd(adapter, BLOGIC_INQ_CONFIG, NULL, 0, &config,
1410 sizeof(config))
1411 != sizeof(config))
1412 return blogic_failure(adapter, "INQUIRE CONFIGURATION");
1413 /*
1414 Issue the Inquire Setup Information command.
1415 */
1416 req_replylen = sizeof(setupinfo);
1417 if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
1418 sizeof(req_replylen), &setupinfo,
1419 sizeof(setupinfo)) != sizeof(setupinfo))
1420 return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
1421 /*
1422 Issue the Inquire Extended Setup Information command.
1423 */
1424 req_replylen = sizeof(ext_setupinfo);
1425 if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
1426 sizeof(req_replylen), &ext_setupinfo,
1427 sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
1428 return blogic_failure(adapter,
1429 "INQUIRE EXTENDED SETUP INFORMATION");
1430 /*
1431 Issue the Inquire Firmware Version 3rd Digit command.
1432 */
1433 fw_ver_digit3 = '\0';
1434 if (id.fw_ver_digit1 > '0')
1435 if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_D3, NULL, 0,
1436 &fw_ver_digit3,
1437 sizeof(fw_ver_digit3)) != sizeof(fw_ver_digit3))
1438 return blogic_failure(adapter,
1439 "INQUIRE FIRMWARE 3RD DIGIT");
1440 /*
1441 Issue the Inquire Host Adapter Model Number command.
1442 */
1443 if (ext_setupinfo.bus_type == 'A' && id.fw_ver_digit1 == '2')
1444 /* BusLogic BT-542B ISA 2.xx */
1445 strcpy(model, "542B");
1446 else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '2' &&
1447 (id.fw_ver_digit2 <= '1' || (id.fw_ver_digit2 == '2' &&
1448 fw_ver_digit3 == '0')))
1449 /* BusLogic BT-742A EISA 2.1x or 2.20 */
1450 strcpy(model, "742A");
1451 else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '0')
1452 /* AMI FastDisk EISA Series 441 0.x */
1453 strcpy(model, "747A");
1454 else {
1455 req_replylen = sizeof(model);
1456 if (blogic_cmd(adapter, BLOGIC_INQ_MODELNO, &req_replylen,
1457 sizeof(req_replylen), &model,
1458 sizeof(model)) != sizeof(model))
1459 return blogic_failure(adapter,
1460 "INQUIRE HOST ADAPTER MODEL NUMBER");
1461 }
1462 /*
1463 BusLogic MultiMaster Host Adapters can be identified by their
1464 model number and the major version number of their firmware
1465 as follows:
1466
1467 5.xx BusLogic "W" Series Host Adapters:
1468 BT-948/958/958D
1469 4.xx BusLogic "C" Series Host Adapters:
1470 BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
1471 3.xx BusLogic "S" Series Host Adapters:
1472 BT-747S/747D/757S/757D/445S/545S/542D
1473 BT-542B/742A (revision H)
1474 2.xx BusLogic "A" Series Host Adapters:
1475 BT-542B/742A (revision G and below)
1476 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter
1477 */
1478 /*
1479 Save the Model Name and Host Adapter Name in the Host Adapter
1480 structure.
1481 */
1482 tgt = adapter->model;
1483 *tgt++ = 'B';
1484 *tgt++ = 'T';
1485 *tgt++ = '-';
1486 for (i = 0; i < sizeof(model); i++) {
1487 ch = model[i];
1488 if (ch == ' ' || ch == '\0')
1489 break;
1490 *tgt++ = ch;
1491 }
1492 *tgt++ = '\0';
1493 /*
1494 Save the Firmware Version in the Host Adapter structure.
1495 */
1496 tgt = adapter->fw_ver;
1497 *tgt++ = id.fw_ver_digit1;
1498 *tgt++ = '.';
1499 *tgt++ = id.fw_ver_digit2;
1500 if (fw_ver_digit3 != ' ' && fw_ver_digit3 != '\0')
1501 *tgt++ = fw_ver_digit3;
1502 *tgt = '\0';
1503 /*
1504 Issue the Inquire Firmware Version Letter command.
1505 */
1506 if (strcmp(adapter->fw_ver, "3.3") >= 0) {
1507 if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_LETTER, NULL, 0,
1508 &fw_ver_letter,
1509 sizeof(fw_ver_letter)) != sizeof(fw_ver_letter))
1510 return blogic_failure(adapter,
1511 "INQUIRE FIRMWARE VERSION LETTER");
1512 if (fw_ver_letter != ' ' && fw_ver_letter != '\0')
1513 *tgt++ = fw_ver_letter;
1514 *tgt = '\0';
1515 }
1516 /*
1517 Save the Host Adapter SCSI ID in the Host Adapter structure.
1518 */
1519 adapter->scsi_id = config.id;
1520 /*
1521 Determine the Bus Type and save it in the Host Adapter structure,
1522 determine and save the IRQ Channel if necessary, and determine
1523 and save the DMA Channel for ISA Host Adapters.
1524 */
1525 adapter->adapter_bus_type =
1526 blogic_adater_bus_types[adapter->model[3] - '4'];
1527 if (adapter->irq_ch == 0) {
1528 if (config.irq_ch9)
1529 adapter->irq_ch = 9;
1530 else if (config.irq_ch10)
1531 adapter->irq_ch = 10;
1532 else if (config.irq_ch11)
1533 adapter->irq_ch = 11;
1534 else if (config.irq_ch12)
1535 adapter->irq_ch = 12;
1536 else if (config.irq_ch14)
1537 adapter->irq_ch = 14;
1538 else if (config.irq_ch15)
1539 adapter->irq_ch = 15;
1540 }
1541 if (adapter->adapter_bus_type == BLOGIC_ISA_BUS) {
1542 if (config.dma_ch5)
1543 adapter->dma_ch = 5;
1544 else if (config.dma_ch6)
1545 adapter->dma_ch = 6;
1546 else if (config.dma_ch7)
1547 adapter->dma_ch = 7;
1548 }
1549 /*
1550 Determine whether Extended Translation is enabled and save it in
1551 the Host Adapter structure.
1552 */
1553 georeg.all = blogic_rdgeom(adapter);
1554 adapter->ext_trans_enable = georeg.gr.ext_trans_enable;
1555 /*
1556 Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide
1557 SCSI flag, Differential SCSI flag, SCAM Supported flag, and
1558 Ultra SCSI flag in the Host Adapter structure.
1559 */
1560 adapter->adapter_sglimit = ext_setupinfo.sg_limit;
1561 adapter->drvr_sglimit = adapter->adapter_sglimit;
1562 if (adapter->adapter_sglimit > BLOGIC_SG_LIMIT)
1563 adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
1564 if (ext_setupinfo.misc.level_int)
1565 adapter->level_int = true;
1566 adapter->wide = ext_setupinfo.wide;
1567 adapter->differential = ext_setupinfo.differential;
1568 adapter->scam = ext_setupinfo.scam;
1569 adapter->ultra = ext_setupinfo.ultra;
1570 /*
1571 Determine whether Extended LUN Format CCBs are supported and save the
1572 information in the Host Adapter structure.
1573 */
1574 if (adapter->fw_ver[0] == '5' || (adapter->fw_ver[0] == '4' &&
1575 adapter->wide))
1576 adapter->ext_lun = true;
1577 /*
1578 Issue the Inquire PCI Host Adapter Information command to read the
1579 Termination Information from "W" series MultiMaster Host Adapters.
1580 */
1581 if (adapter->fw_ver[0] == '5') {
1582 if (blogic_cmd(adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
1583 &adapter_info,
1584 sizeof(adapter_info)) != sizeof(adapter_info))
1585 return blogic_failure(adapter,
1586 "INQUIRE PCI HOST ADAPTER INFORMATION");
1587 /*
1588 Save the Termination Information in the Host Adapter
1589 structure.
1590 */
1591 if (adapter_info.genericinfo_valid) {
1592 adapter->terminfo_valid = true;
1593 adapter->low_term = adapter_info.low_term;
1594 adapter->high_term = adapter_info.high_term;
1595 }
1596 }
1597 /*
1598 Issue the Fetch Host Adapter Local RAM command to read the
1599 AutoSCSI data from "W" and "C" series MultiMaster Host Adapters.
1600 */
1601 if (adapter->fw_ver[0] >= '4') {
1602 fetch_localram.offset = BLOGIC_AUTOSCSI_BASE;
1603 fetch_localram.count = sizeof(autoscsi);
1604 if (blogic_cmd(adapter, BLOGIC_FETCH_LOCALRAM, &fetch_localram,
1605 sizeof(fetch_localram), &autoscsi,
1606 sizeof(autoscsi)) != sizeof(autoscsi))
1607 return blogic_failure(adapter,
1608 "FETCH HOST ADAPTER LOCAL RAM");
1609 /*
1610 Save the Parity Checking Enabled, Bus Reset Enabled,
1611 and Termination Information in the Host Adapter structure.
1612 */
1613 adapter->parity = autoscsi.parity;
1614 adapter->reset_enabled = autoscsi.reset_enabled;
1615 if (adapter->fw_ver[0] == '4') {
1616 adapter->terminfo_valid = true;
1617 adapter->low_term = autoscsi.low_term;
1618 adapter->high_term = autoscsi.high_term;
1619 }
1620 /*
1621 Save the Wide Permitted, Fast Permitted, Synchronous
1622 Permitted, Disconnect Permitted, Ultra Permitted, and
1623 SCAM Information in the Host Adapter structure.
1624 */
1625 adapter->wide_ok = autoscsi.wide_ok;
1626 adapter->fast_ok = autoscsi.fast_ok;
1627 adapter->sync_ok = autoscsi.sync_ok;
1628 adapter->discon_ok = autoscsi.discon_ok;
1629 if (adapter->ultra)
1630 adapter->ultra_ok = autoscsi.ultra_ok;
1631 if (adapter->scam) {
1632 adapter->scam_enabled = autoscsi.scam_enabled;
1633 adapter->scam_lev2 = autoscsi.scam_lev2;
1634 }
1635 }
1636 /*
1637 Initialize fields in the Host Adapter structure for "S" and "A"
1638 series MultiMaster Host Adapters.
1639 */
1640 if (adapter->fw_ver[0] < '4') {
1641 if (setupinfo.sync) {
1642 adapter->sync_ok = 0xFF;
1643 if (adapter->adapter_bus_type == BLOGIC_EISA_BUS) {
1644 if (ext_setupinfo.misc.fast_on_eisa)
1645 adapter->fast_ok = 0xFF;
1646 if (strcmp(adapter->model, "BT-757") == 0)
1647 adapter->wide_ok = 0xFF;
1648 }
1649 }
1650 adapter->discon_ok = 0xFF;
1651 adapter->parity = setupinfo.parity;
1652 adapter->reset_enabled = true;
1653 }
1654 /*
1655 Determine the maximum number of Target IDs and Logical Units
1656 supported by this driver for Wide and Narrow Host Adapters.
1657 */
1658 adapter->maxdev = (adapter->wide ? 16 : 8);
1659 adapter->maxlun = (adapter->ext_lun ? 32 : 8);
1660 /*
1661 Select appropriate values for the Mailbox Count, Driver Queue Depth,
1662 Initial CCBs, and Incremental CCBs variables based on whether
1663 or not Strict Round Robin Mode is supported. If Strict Round
1664 Robin Mode is supported, then there is no performance degradation
1665 in using the maximum possible number of Outgoing and Incoming
1666 Mailboxes and allowing the Tagged and Untagged Queue Depths to
1667 determine the actual utilization. If Strict Round Robin Mode is
1668 not supported, then the Host Adapter must scan all the Outgoing
1669 Mailboxes whenever an Outgoing Mailbox entry is made, which can
1670 cause a substantial performance penalty. The host adapters
1671 actually have room to store the following number of CCBs
1672 internally; that is, they can internally queue and manage this
1673 many active commands on the SCSI bus simultaneously. Performance
1674 measurements demonstrate that the Driver Queue Depth should be
1675 set to the Mailbox Count, rather than the Host Adapter Queue
1676 Depth (internal CCB capacity), as it is more efficient to have the
1677 queued commands waiting in Outgoing Mailboxes if necessary than
1678 to block the process in the higher levels of the SCSI Subsystem.
1679
1680 192 BT-948/958/958D
1681 100 BT-946C/956C/956CD/747C/757C/757CD/445C
1682 50 BT-545C/540CF
1683 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A
1684 */
1685 if (adapter->fw_ver[0] == '5')
1686 adapter->adapter_qdepth = 192;
1687 else if (adapter->fw_ver[0] == '4')
1688 adapter->adapter_qdepth = (adapter->adapter_bus_type !=
1689 BLOGIC_ISA_BUS ? 100 : 50);
1690 else
1691 adapter->adapter_qdepth = 30;
1692 if (strcmp(adapter->fw_ver, "3.31") >= 0) {
1693 adapter->strict_rr = true;
1694 adapter->mbox_count = BLOGIC_MAX_MAILBOX;
1695 } else {
1696 adapter->strict_rr = false;
1697 adapter->mbox_count = 32;
1698 }
1699 adapter->drvr_qdepth = adapter->mbox_count;
1700 adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
1701 adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
1702 /*
1703 Tagged Queuing support is available and operates properly on
1704 all "W" series MultiMaster Host Adapters, on "C" series
1705 MultiMaster Host Adapters with firmware version 4.22 and above,
1706 and on "S" series MultiMaster Host Adapters with firmware version
1707 3.35 and above.
1708 */
1709 adapter->tagq_ok = 0;
1710 switch (adapter->fw_ver[0]) {
1711 case '5':
1712 adapter->tagq_ok = 0xFFFF;
1713 break;
1714 case '4':
1715 if (strcmp(adapter->fw_ver, "4.22") >= 0)
1716 adapter->tagq_ok = 0xFFFF;
1717 break;
1718 case '3':
1719 if (strcmp(adapter->fw_ver, "3.35") >= 0)
1720 adapter->tagq_ok = 0xFFFF;
1721 break;
1722 }
1723 /*
1724 Determine the Host Adapter BIOS Address if the BIOS is enabled and
1725 save it in the Host Adapter structure. The BIOS is disabled if the
1726 bios_addr is 0.
1727 */
1728 adapter->bios_addr = ext_setupinfo.bios_addr << 12;
1729 /*
1730 ISA Host Adapters require Bounce Buffers if there is more than
1731 16MB memory.
1732 */
1733 if (adapter->adapter_bus_type == BLOGIC_ISA_BUS &&
1734 (void *) high_memory > (void *) MAX_DMA_ADDRESS)
1735 adapter->need_bouncebuf = true;
1736 /*
1737 BusLogic BT-445S Host Adapters prior to board revision E have a
1738 hardware bug whereby when the BIOS is enabled, transfers to/from
1739 the same address range the BIOS occupies modulo 16MB are handled
1740 incorrectly. Only properly functioning BT-445S Host Adapters
1741 have firmware version 3.37, so require that ISA Bounce Buffers
1742 be used for the buggy BT-445S models if there is more than 16MB
1743 memory.
1744 */
1745 if (adapter->bios_addr > 0 && strcmp(adapter->model, "BT-445S") == 0 &&
1746 strcmp(adapter->fw_ver, "3.37") < 0 &&
1747 (void *) high_memory > (void *) MAX_DMA_ADDRESS)
1748 adapter->need_bouncebuf = true;
1749 /*
1750 Initialize parameters common to MultiMaster and FlashPoint
1751 Host Adapters.
1752 */
1753common:
1754 /*
1755 Initialize the Host Adapter Full Model Name from the Model Name.
1756 */
1757 strcpy(adapter->full_model, "BusLogic ");
1758 strcat(adapter->full_model, adapter->model);
1759 /*
1760 Select an appropriate value for the Tagged Queue Depth either from a
1761 BusLogic Driver Options specification, or based on whether this Host
1762 Adapter requires that ISA Bounce Buffers be used. The Tagged Queue
1763 Depth is left at 0 for automatic determination in
1764 BusLogic_SelectQueueDepths. Initialize the Untagged Queue Depth.
1765 */
1766 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
1767 unsigned char qdepth = 0;
1768 if (adapter->drvr_opts != NULL &&
1769 adapter->drvr_opts->qdepth[tgt_id] > 0)
1770 qdepth = adapter->drvr_opts->qdepth[tgt_id];
1771 else if (adapter->need_bouncebuf)
1772 qdepth = BLOGIC_TAG_DEPTH_BB;
1773 adapter->qdepth[tgt_id] = qdepth;
1774 }
1775 if (adapter->need_bouncebuf)
1776 adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH_BB;
1777 else
1778 adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH;
1779 if (adapter->drvr_opts != NULL)
1780 adapter->common_qdepth = adapter->drvr_opts->common_qdepth;
1781 if (adapter->common_qdepth > 0 &&
1782 adapter->common_qdepth < adapter->untag_qdepth)
1783 adapter->untag_qdepth = adapter->common_qdepth;
1784 /*
1785 Tagged Queuing is only allowed if Disconnect/Reconnect is permitted.
1786 Therefore, mask the Tagged Queuing Permitted Default bits with the
1787 Disconnect/Reconnect Permitted bits.
1788 */
1789 adapter->tagq_ok &= adapter->discon_ok;
1790 /*
1791 Combine the default Tagged Queuing Permitted bits with any
1792 BusLogic Driver Options Tagged Queuing specification.
1793 */
1794 if (adapter->drvr_opts != NULL)
1795 adapter->tagq_ok = (adapter->drvr_opts->tagq_ok &
1796 adapter->drvr_opts->tagq_ok_mask) |
1797 (adapter->tagq_ok & ~adapter->drvr_opts->tagq_ok_mask);
1798
1799 /*
1800 Select an appropriate value for Bus Settle Time either from a
1801 BusLogic Driver Options specification, or from
1802 BLOGIC_BUS_SETTLE_TIME.
1803 */
1804 if (adapter->drvr_opts != NULL &&
1805 adapter->drvr_opts->bus_settle_time > 0)
1806 adapter->bus_settle_time = adapter->drvr_opts->bus_settle_time;
1807 else
1808 adapter->bus_settle_time = BLOGIC_BUS_SETTLE_TIME;
1809 /*
1810 Indicate reading the Host Adapter Configuration completed
1811 successfully.
1812 */
1813 return true;
1814}
1815
1816
1817/*
1818 blogic_reportconfig reports the configuration of Host Adapter.
1819*/
1820
1821static bool __init blogic_reportconfig(struct blogic_adapter *adapter)
1822{
1823 unsigned short alltgt_mask = (1 << adapter->maxdev) - 1;
1824 unsigned short sync_ok, fast_ok;
1825 unsigned short ultra_ok, wide_ok;
1826 unsigned short discon_ok, tagq_ok;
1827 bool common_syncneg, common_tagq_depth;
1828 char syncstr[BLOGIC_MAXDEV + 1];
1829 char widestr[BLOGIC_MAXDEV + 1];
1830 char discon_str[BLOGIC_MAXDEV + 1];
1831 char tagq_str[BLOGIC_MAXDEV + 1];
1832 char *syncmsg = syncstr;
1833 char *widemsg = widestr;
1834 char *discon_msg = discon_str;
1835 char *tagq_msg = tagq_str;
1836 int tgt_id;
1837
1838 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" : ""));
1839 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"));
1840 if (adapter->adapter_bus_type != BLOGIC_PCI_BUS) {
1841 blogic_info(" DMA Channel: ", adapter);
1842 if (adapter->dma_ch > 0)
1843 blogic_info("%d, ", adapter, adapter->dma_ch);
1844 else
1845 blogic_info("None, ", adapter);
1846 if (adapter->bios_addr > 0)
1847 blogic_info("BIOS Address: 0x%X, ", adapter,
1848 adapter->bios_addr);
1849 else
1850 blogic_info("BIOS Address: None, ", adapter);
1851 } else {
1852 blogic_info(" PCI Bus: %d, Device: %d, Address: ", adapter,
1853 adapter->bus, adapter->dev);
1854 if (adapter->pci_addr > 0)
1855 blogic_info("0x%X, ", adapter, adapter->pci_addr);
1856 else
1857 blogic_info("Unassigned, ", adapter);
1858 }
1859 blogic_info("Host Adapter SCSI ID: %d\n", adapter, adapter->scsi_id);
1860 blogic_info(" Parity Checking: %s, Extended Translation: %s\n",
1861 adapter, (adapter->parity ? "Enabled" : "Disabled"),
1862 (adapter->ext_trans_enable ? "Enabled" : "Disabled"));
1863 alltgt_mask &= ~(1 << adapter->scsi_id);
1864 sync_ok = adapter->sync_ok & alltgt_mask;
1865 fast_ok = adapter->fast_ok & alltgt_mask;
1866 ultra_ok = adapter->ultra_ok & alltgt_mask;
1867 if ((blogic_multimaster_type(adapter) &&
1868 (adapter->fw_ver[0] >= '4' ||
1869 adapter->adapter_bus_type == BLOGIC_EISA_BUS)) ||
1870 blogic_flashpoint_type(adapter)) {
1871 common_syncneg = false;
1872 if (sync_ok == 0) {
1873 syncmsg = "Disabled";
1874 common_syncneg = true;
1875 } else if (sync_ok == alltgt_mask) {
1876 if (fast_ok == 0) {
1877 syncmsg = "Slow";
1878 common_syncneg = true;
1879 } else if (fast_ok == alltgt_mask) {
1880 if (ultra_ok == 0) {
1881 syncmsg = "Fast";
1882 common_syncneg = true;
1883 } else if (ultra_ok == alltgt_mask) {
1884 syncmsg = "Ultra";
1885 common_syncneg = true;
1886 }
1887 }
1888 }
1889 if (!common_syncneg) {
1890 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1891 syncstr[tgt_id] = ((!(sync_ok & (1 << tgt_id))) ? 'N' : (!(fast_ok & (1 << tgt_id)) ? 'S' : (!(ultra_ok & (1 << tgt_id)) ? 'F' : 'U')));
1892 syncstr[adapter->scsi_id] = '#';
1893 syncstr[adapter->maxdev] = '\0';
1894 }
1895 } else
1896 syncmsg = (sync_ok == 0 ? "Disabled" : "Enabled");
1897 wide_ok = adapter->wide_ok & alltgt_mask;
1898 if (wide_ok == 0)
1899 widemsg = "Disabled";
1900 else if (wide_ok == alltgt_mask)
1901 widemsg = "Enabled";
1902 else {
1903 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1904 widestr[tgt_id] = ((wide_ok & (1 << tgt_id)) ? 'Y' : 'N');
1905 widestr[adapter->scsi_id] = '#';
1906 widestr[adapter->maxdev] = '\0';
1907 }
1908 discon_ok = adapter->discon_ok & alltgt_mask;
1909 if (discon_ok == 0)
1910 discon_msg = "Disabled";
1911 else if (discon_ok == alltgt_mask)
1912 discon_msg = "Enabled";
1913 else {
1914 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1915 discon_str[tgt_id] = ((discon_ok & (1 << tgt_id)) ? 'Y' : 'N');
1916 discon_str[adapter->scsi_id] = '#';
1917 discon_str[adapter->maxdev] = '\0';
1918 }
1919 tagq_ok = adapter->tagq_ok & alltgt_mask;
1920 if (tagq_ok == 0)
1921 tagq_msg = "Disabled";
1922 else if (tagq_ok == alltgt_mask)
1923 tagq_msg = "Enabled";
1924 else {
1925 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1926 tagq_str[tgt_id] = ((tagq_ok & (1 << tgt_id)) ? 'Y' : 'N');
1927 tagq_str[adapter->scsi_id] = '#';
1928 tagq_str[adapter->maxdev] = '\0';
1929 }
1930 blogic_info(" Synchronous Negotiation: %s, Wide Negotiation: %s\n",
1931 adapter, syncmsg, widemsg);
1932 blogic_info(" Disconnect/Reconnect: %s, Tagged Queuing: %s\n", adapter,
1933 discon_msg, tagq_msg);
1934 if (blogic_multimaster_type(adapter)) {
1935 blogic_info(" Scatter/Gather Limit: %d of %d segments, " "Mailboxes: %d\n", adapter, adapter->drvr_sglimit, adapter->adapter_sglimit, adapter->mbox_count);
1936 blogic_info(" Driver Queue Depth: %d, " "Host Adapter Queue Depth: %d\n", adapter, adapter->drvr_qdepth, adapter->adapter_qdepth);
1937 } else
1938 blogic_info(" Driver Queue Depth: %d, " "Scatter/Gather Limit: %d segments\n", adapter, adapter->drvr_qdepth, adapter->drvr_sglimit);
1939 blogic_info(" Tagged Queue Depth: ", adapter);
1940 common_tagq_depth = true;
1941 for (tgt_id = 1; tgt_id < adapter->maxdev; tgt_id++)
1942 if (adapter->qdepth[tgt_id] != adapter->qdepth[0]) {
1943 common_tagq_depth = false;
1944 break;
1945 }
1946 if (common_tagq_depth) {
1947 if (adapter->qdepth[0] > 0)
1948 blogic_info("%d", adapter, adapter->qdepth[0]);
1949 else
1950 blogic_info("Automatic", adapter);
1951 } else
1952 blogic_info("Individual", adapter);
1953 blogic_info(", Untagged Queue Depth: %d\n", adapter,
1954 adapter->untag_qdepth);
1955 if (adapter->terminfo_valid) {
1956 if (adapter->wide)
1957 blogic_info(" SCSI Bus Termination: %s", adapter,
1958 (adapter->low_term ? (adapter->high_term ? "Both Enabled" : "Low Enabled") : (adapter->high_term ? "High Enabled" : "Both Disabled")));
1959 else
1960 blogic_info(" SCSI Bus Termination: %s", adapter,
1961 (adapter->low_term ? "Enabled" : "Disabled"));
1962 if (adapter->scam)
1963 blogic_info(", SCAM: %s", adapter,
1964 (adapter->scam_enabled ? (adapter->scam_lev2 ? "Enabled, Level 2" : "Enabled, Level 1") : "Disabled"));
1965 blogic_info("\n", adapter);
1966 }
1967 /*
1968 Indicate reporting the Host Adapter configuration completed
1969 successfully.
1970 */
1971 return true;
1972}
1973
1974
1975/*
1976 blogic_getres acquires the system resources necessary to use
1977 Host Adapter.
1978*/
1979
1980static bool __init blogic_getres(struct blogic_adapter *adapter)
1981{
1982 if (adapter->irq_ch == 0) {
1983 blogic_err("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n",
1984 adapter);
1985 return false;
1986 }
1987 /*
1988 Acquire shared access to the IRQ Channel.
1989 */
1990 if (request_irq(adapter->irq_ch, blogic_inthandler, IRQF_SHARED,
1991 adapter->full_model, adapter) < 0) {
1992 blogic_err("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n",
1993 adapter, adapter->irq_ch);
1994 return false;
1995 }
1996 adapter->irq_acquired = true;
1997 /*
1998 Acquire exclusive access to the DMA Channel.
1999 */
2000 if (adapter->dma_ch > 0) {
2001 if (request_dma(adapter->dma_ch, adapter->full_model) < 0) {
2002 blogic_err("UNABLE TO ACQUIRE DMA CHANNEL %d - DETACHING\n", adapter, adapter->dma_ch);
2003 return false;
2004 }
2005 set_dma_mode(adapter->dma_ch, DMA_MODE_CASCADE);
2006 enable_dma(adapter->dma_ch);
2007 adapter->dma_chan_acquired = true;
2008 }
2009 /*
2010 Indicate the System Resource Acquisition completed successfully,
2011 */
2012 return true;
2013}
2014
2015
2016/*
2017 blogic_relres releases any system resources previously acquired
2018 by blogic_getres.
2019*/
2020
2021static void blogic_relres(struct blogic_adapter *adapter)
2022{
2023 /*
2024 Release shared access to the IRQ Channel.
2025 */
2026 if (adapter->irq_acquired)
2027 free_irq(adapter->irq_ch, adapter);
2028 /*
2029 Release exclusive access to the DMA Channel.
2030 */
2031 if (adapter->dma_chan_acquired)
2032 free_dma(adapter->dma_ch);
2033 /*
2034 Release any allocated memory structs not released elsewhere
2035 */
2036 if (adapter->mbox_space)
2037 dma_free_coherent(&adapter->pci_device->dev, adapter->mbox_sz,
2038 adapter->mbox_space, adapter->mbox_space_handle);
2039 pci_dev_put(adapter->pci_device);
2040 adapter->mbox_space = NULL;
2041 adapter->mbox_space_handle = 0;
2042 adapter->mbox_sz = 0;
2043}
2044
2045
2046/*
2047 blogic_initadapter initializes Host Adapter. This is the only
2048 function called during SCSI Host Adapter detection which modifies the state
2049 of the Host Adapter from its initial power on or hard reset state.
2050*/
2051
2052static bool blogic_initadapter(struct blogic_adapter *adapter)
2053{
2054 struct blogic_extmbox_req extmbox_req;
2055 enum blogic_rr_req rr_req;
2056 enum blogic_setccb_fmt setccb_fmt;
2057 int tgt_id;
2058
2059 /*
2060 Initialize the pointers to the first and last CCBs that are
2061 queued for completion processing.
2062 */
2063 adapter->firstccb = NULL;
2064 adapter->lastccb = NULL;
2065
2066 /*
2067 Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active,
2068 Command Successful Flag, Active Commands, and Commands Since Reset
2069 for each Target Device.
2070 */
2071 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
2072 adapter->bdr_pend[tgt_id] = NULL;
2073 adapter->tgt_flags[tgt_id].tagq_active = false;
2074 adapter->tgt_flags[tgt_id].cmd_good = false;
2075 adapter->active_cmds[tgt_id] = 0;
2076 adapter->cmds_since_rst[tgt_id] = 0;
2077 }
2078
2079 /*
2080 FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes.
2081 */
2082 if (blogic_flashpoint_type(adapter))
2083 goto done;
2084
2085 /*
2086 Initialize the Outgoing and Incoming Mailbox pointers.
2087 */
2088 adapter->mbox_sz = adapter->mbox_count * (sizeof(struct blogic_outbox) + sizeof(struct blogic_inbox));
2089 adapter->mbox_space = dma_alloc_coherent(&adapter->pci_device->dev,
2090 adapter->mbox_sz, &adapter->mbox_space_handle,
2091 GFP_KERNEL);
2092 if (adapter->mbox_space == NULL)
2093 return blogic_failure(adapter, "MAILBOX ALLOCATION");
2094 adapter->first_outbox = (struct blogic_outbox *) adapter->mbox_space;
2095 adapter->last_outbox = adapter->first_outbox + adapter->mbox_count - 1;
2096 adapter->next_outbox = adapter->first_outbox;
2097 adapter->first_inbox = (struct blogic_inbox *) (adapter->last_outbox + 1);
2098 adapter->last_inbox = adapter->first_inbox + adapter->mbox_count - 1;
2099 adapter->next_inbox = adapter->first_inbox;
2100
2101 /*
2102 Initialize the Outgoing and Incoming Mailbox structures.
2103 */
2104 memset(adapter->first_outbox, 0,
2105 adapter->mbox_count * sizeof(struct blogic_outbox));
2106 memset(adapter->first_inbox, 0,
2107 adapter->mbox_count * sizeof(struct blogic_inbox));
2108
2109 /*
2110 Initialize the Host Adapter's Pointer to the Outgoing/Incoming
2111 Mailboxes.
2112 */
2113 extmbox_req.mbox_count = adapter->mbox_count;
2114 extmbox_req.base_mbox_addr = (u32) adapter->mbox_space_handle;
2115 if (blogic_cmd(adapter, BLOGIC_INIT_EXT_MBOX, &extmbox_req,
2116 sizeof(extmbox_req), NULL, 0) < 0)
2117 return blogic_failure(adapter, "MAILBOX INITIALIZATION");
2118 /*
2119 Enable Strict Round Robin Mode if supported by the Host Adapter. In
2120 Strict Round Robin Mode, the Host Adapter only looks at the next
2121 Outgoing Mailbox for each new command, rather than scanning
2122 through all the Outgoing Mailboxes to find any that have new
2123 commands in them. Strict Round Robin Mode is significantly more
2124 efficient.
2125 */
2126 if (adapter->strict_rr) {
2127 rr_req = BLOGIC_STRICT_RR_MODE;
2128 if (blogic_cmd(adapter, BLOGIC_STRICT_RR, &rr_req,
2129 sizeof(rr_req), NULL, 0) < 0)
2130 return blogic_failure(adapter,
2131 "ENABLE STRICT ROUND ROBIN MODE");
2132 }
2133
2134 /*
2135 For Host Adapters that support Extended LUN Format CCBs, issue the
2136 Set CCB Format command to allow 32 Logical Units per Target Device.
2137 */
2138 if (adapter->ext_lun) {
2139 setccb_fmt = BLOGIC_EXT_LUN_CCB;
2140 if (blogic_cmd(adapter, BLOGIC_SETCCB_FMT, &setccb_fmt,
2141 sizeof(setccb_fmt), NULL, 0) < 0)
2142 return blogic_failure(adapter, "SET CCB FORMAT");
2143 }
2144
2145 /*
2146 Announce Successful Initialization.
2147 */
2148done:
2149 if (!adapter->adapter_initd) {
2150 blogic_info("*** %s Initialized Successfully ***\n", adapter,
2151 adapter->full_model);
2152 blogic_info("\n", adapter);
2153 } else
2154 blogic_warn("*** %s Initialized Successfully ***\n", adapter,
2155 adapter->full_model);
2156 adapter->adapter_initd = true;
2157
2158 /*
2159 Indicate the Host Adapter Initialization completed successfully.
2160 */
2161 return true;
2162}
2163
2164
2165/*
2166 blogic_inquiry inquires about the Target Devices accessible
2167 through Host Adapter.
2168*/
2169
2170static bool __init blogic_inquiry(struct blogic_adapter *adapter)
2171{
2172 u16 installed_devs;
2173 u8 installed_devs0to7[8];
2174 struct blogic_setup_info setupinfo;
2175 u8 sync_period[BLOGIC_MAXDEV];
2176 unsigned char req_replylen;
2177 int tgt_id;
2178
2179 /*
2180 Wait a few seconds between the Host Adapter Hard Reset which
2181 initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
2182 SCSI devices get confused if they receive SCSI Commands too soon
2183 after a SCSI Bus Reset.
2184 */
2185 blogic_delay(adapter->bus_settle_time);
2186 /*
2187 FlashPoint Host Adapters do not provide for Target Device Inquiry.
2188 */
2189 if (blogic_flashpoint_type(adapter))
2190 return true;
2191 /*
2192 Inhibit the Target Device Inquiry if requested.
2193 */
2194 if (adapter->drvr_opts != NULL && adapter->drvr_opts->stop_tgt_inquiry)
2195 return true;
2196 /*
2197 Issue the Inquire Target Devices command for host adapters with
2198 firmware version 4.25 or later, or the Inquire Installed Devices
2199 ID 0 to 7 command for older host adapters. This is necessary to
2200 force Synchronous Transfer Negotiation so that the Inquire Setup
2201 Information and Inquire Synchronous Period commands will return
2202 valid data. The Inquire Target Devices command is preferable to
2203 Inquire Installed Devices ID 0 to 7 since it only probes Logical
2204 Unit 0 of each Target Device.
2205 */
2206 if (strcmp(adapter->fw_ver, "4.25") >= 0) {
2207
2208 /*
2209 Issue a Inquire Target Devices command. Inquire Target
2210 Devices only tests Logical Unit 0 of each Target Device
2211 unlike the Inquire Installed Devices commands which test
2212 Logical Units 0 - 7. Two bytes are returned, where byte
2213 0 bit 0 set indicates that Target Device 0 exists, and so on.
2214 */
2215
2216 if (blogic_cmd(adapter, BLOGIC_INQ_DEV, NULL, 0,
2217 &installed_devs, sizeof(installed_devs))
2218 != sizeof(installed_devs))
2219 return blogic_failure(adapter, "INQUIRE TARGET DEVICES");
2220 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2221 adapter->tgt_flags[tgt_id].tgt_exists =
2222 (installed_devs & (1 << tgt_id) ? true : false);
2223 } else {
2224
2225 /*
2226 Issue an Inquire Installed Devices command. For each
2227 Target Device, a byte is returned where bit 0 set
2228 indicates that Logical Unit 0 * exists, bit 1 set
2229 indicates that Logical Unit 1 exists, and so on.
2230 */
2231
2232 if (blogic_cmd(adapter, BLOGIC_INQ_DEV0TO7, NULL, 0,
2233 &installed_devs0to7, sizeof(installed_devs0to7))
2234 != sizeof(installed_devs0to7))
2235 return blogic_failure(adapter,
2236 "INQUIRE INSTALLED DEVICES ID 0 TO 7");
2237 for (tgt_id = 0; tgt_id < 8; tgt_id++)
2238 adapter->tgt_flags[tgt_id].tgt_exists =
2239 (installed_devs0to7[tgt_id] != 0 ? true : false);
2240 }
2241 /*
2242 Issue the Inquire Setup Information command.
2243 */
2244 req_replylen = sizeof(setupinfo);
2245 if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
2246 sizeof(req_replylen), &setupinfo, sizeof(setupinfo))
2247 != sizeof(setupinfo))
2248 return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
2249 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2250 adapter->sync_offset[tgt_id] = (tgt_id < 8 ? setupinfo.sync0to7[tgt_id].offset : setupinfo.sync8to15[tgt_id - 8].offset);
2251 if (strcmp(adapter->fw_ver, "5.06L") >= 0)
2252 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2253 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));
2254 /*
2255 Issue the Inquire Synchronous Period command.
2256 */
2257 if (adapter->fw_ver[0] >= '3') {
2258
2259 /* Issue a Inquire Synchronous Period command. For each
2260 Target Device, a byte is returned which represents the
2261 Synchronous Transfer Period in units of 10 nanoseconds.
2262 */
2263
2264 req_replylen = sizeof(sync_period);
2265 if (blogic_cmd(adapter, BLOGIC_INQ_SYNC_PERIOD, &req_replylen,
2266 sizeof(req_replylen), &sync_period,
2267 sizeof(sync_period)) != sizeof(sync_period))
2268 return blogic_failure(adapter,
2269 "INQUIRE SYNCHRONOUS PERIOD");
2270 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2271 adapter->sync_period[tgt_id] = sync_period[tgt_id];
2272 } else
2273 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2274 if (setupinfo.sync0to7[tgt_id].offset > 0)
2275 adapter->sync_period[tgt_id] = 20 + 5 * setupinfo.sync0to7[tgt_id].tx_period;
2276 /*
2277 Indicate the Target Device Inquiry completed successfully.
2278 */
2279 return true;
2280}
2281
2282/*
2283 blogic_inithoststruct initializes the fields in the SCSI Host
2284 structure. The base, io_port, n_io_ports, irq, and dma_channel fields in the
2285 SCSI Host structure are intentionally left uninitialized, as this driver
2286 handles acquisition and release of these resources explicitly, as well as
2287 ensuring exclusive access to the Host Adapter hardware and data structures
2288 through explicit acquisition and release of the Host Adapter's Lock.
2289*/
2290
2291static void __init blogic_inithoststruct(struct blogic_adapter *adapter,
2292 struct Scsi_Host *host)
2293{
2294 host->max_id = adapter->maxdev;
2295 host->max_lun = adapter->maxlun;
2296 host->max_channel = 0;
2297 host->unique_id = adapter->io_addr;
2298 host->this_id = adapter->scsi_id;
2299 host->can_queue = adapter->drvr_qdepth;
2300 host->sg_tablesize = adapter->drvr_sglimit;
2301 host->unchecked_isa_dma = adapter->need_bouncebuf;
2302 host->cmd_per_lun = adapter->untag_qdepth;
2303}
2304
2305/*
2306 blogic_slaveconfig will actually set the queue depth on individual
2307 scsi devices as they are permanently added to the device chain. We
2308 shamelessly rip off the SelectQueueDepths code to make this work mostly
2309 like it used to. Since we don't get called once at the end of the scan
2310 but instead get called for each device, we have to do things a bit
2311 differently.
2312*/
2313static int blogic_slaveconfig(struct scsi_device *dev)
2314{
2315 struct blogic_adapter *adapter =
2316 (struct blogic_adapter *) dev->host->hostdata;
2317 int tgt_id = dev->id;
2318 int qdepth = adapter->qdepth[tgt_id];
2319
2320 if (adapter->tgt_flags[tgt_id].tagq_ok &&
2321 (adapter->tagq_ok & (1 << tgt_id))) {
2322 if (qdepth == 0)
2323 qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH;
2324 adapter->qdepth[tgt_id] = qdepth;
2325 scsi_change_queue_depth(dev, qdepth);
2326 } else {
2327 adapter->tagq_ok &= ~(1 << tgt_id);
2328 qdepth = adapter->untag_qdepth;
2329 adapter->qdepth[tgt_id] = qdepth;
2330 scsi_change_queue_depth(dev, qdepth);
2331 }
2332 qdepth = 0;
2333 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2334 if (adapter->tgt_flags[tgt_id].tgt_exists)
2335 qdepth += adapter->qdepth[tgt_id];
2336 if (qdepth > adapter->alloc_ccbs)
2337 blogic_create_addlccbs(adapter, qdepth - adapter->alloc_ccbs,
2338 false);
2339 return 0;
2340}
2341
2342/*
2343 blogic_init probes for BusLogic Host Adapters at the standard
2344 I/O Addresses where they may be located, initializing, registering, and
2345 reporting the configuration of each BusLogic Host Adapter it finds. It
2346 returns the number of BusLogic Host Adapters successfully initialized and
2347 registered.
2348*/
2349
2350static int __init blogic_init(void)
2351{
2352 int adapter_count = 0, drvr_optindex = 0, probeindex;
2353 struct blogic_adapter *adapter;
2354 int ret = 0;
2355
2356#ifdef MODULE
2357 if (BusLogic)
2358 blogic_setup(BusLogic);
2359#endif
2360
2361 if (blogic_probe_options.noprobe)
2362 return -ENODEV;
2363 blogic_probeinfo_list =
2364 kcalloc(BLOGIC_MAX_ADAPTERS, sizeof(struct blogic_probeinfo),
2365 GFP_KERNEL);
2366 if (blogic_probeinfo_list == NULL) {
2367 blogic_err("BusLogic: Unable to allocate Probe Info List\n",
2368 NULL);
2369 return -ENOMEM;
2370 }
2371
2372 adapter = kzalloc(sizeof(struct blogic_adapter), GFP_KERNEL);
2373 if (adapter == NULL) {
2374 kfree(blogic_probeinfo_list);
2375 blogic_err("BusLogic: Unable to allocate Prototype Host Adapter\n", NULL);
2376 return -ENOMEM;
2377 }
2378
2379#ifdef MODULE
2380 if (BusLogic != NULL)
2381 blogic_setup(BusLogic);
2382#endif
2383 blogic_init_probeinfo_list(adapter);
2384 for (probeindex = 0; probeindex < blogic_probeinfo_count; probeindex++) {
2385 struct blogic_probeinfo *probeinfo =
2386 &blogic_probeinfo_list[probeindex];
2387 struct blogic_adapter *myadapter = adapter;
2388 struct Scsi_Host *host;
2389
2390 if (probeinfo->io_addr == 0)
2391 continue;
2392 memset(myadapter, 0, sizeof(struct blogic_adapter));
2393 myadapter->adapter_type = probeinfo->adapter_type;
2394 myadapter->adapter_bus_type = probeinfo->adapter_bus_type;
2395 myadapter->io_addr = probeinfo->io_addr;
2396 myadapter->pci_addr = probeinfo->pci_addr;
2397 myadapter->bus = probeinfo->bus;
2398 myadapter->dev = probeinfo->dev;
2399 myadapter->pci_device = probeinfo->pci_device;
2400 myadapter->irq_ch = probeinfo->irq_ch;
2401 myadapter->addr_count =
2402 blogic_adapter_addr_count[myadapter->adapter_type];
2403
2404 /*
2405 Make sure region is free prior to probing.
2406 */
2407 if (!request_region(myadapter->io_addr, myadapter->addr_count,
2408 "BusLogic"))
2409 continue;
2410 /*
2411 Probe the Host Adapter. If unsuccessful, abort further
2412 initialization.
2413 */
2414 if (!blogic_probe(myadapter)) {
2415 release_region(myadapter->io_addr,
2416 myadapter->addr_count);
2417 continue;
2418 }
2419 /*
2420 Hard Reset the Host Adapter. If unsuccessful, abort further
2421 initialization.
2422 */
2423 if (!blogic_hwreset(myadapter, true)) {
2424 release_region(myadapter->io_addr,
2425 myadapter->addr_count);
2426 continue;
2427 }
2428 /*
2429 Check the Host Adapter. If unsuccessful, abort further
2430 initialization.
2431 */
2432 if (!blogic_checkadapter(myadapter)) {
2433 release_region(myadapter->io_addr,
2434 myadapter->addr_count);
2435 continue;
2436 }
2437 /*
2438 Initialize the Driver Options field if provided.
2439 */
2440 if (drvr_optindex < blogic_drvr_options_count)
2441 myadapter->drvr_opts =
2442 &blogic_drvr_options[drvr_optindex++];
2443 /*
2444 Announce the Driver Version and Date, Author's Name,
2445 Copyright Notice, and Electronic Mail Address.
2446 */
2447 blogic_announce_drvr(myadapter);
2448 /*
2449 Register the SCSI Host structure.
2450 */
2451
2452 host = scsi_host_alloc(&blogic_template,
2453 sizeof(struct blogic_adapter));
2454 if (host == NULL) {
2455 release_region(myadapter->io_addr,
2456 myadapter->addr_count);
2457 continue;
2458 }
2459 myadapter = (struct blogic_adapter *) host->hostdata;
2460 memcpy(myadapter, adapter, sizeof(struct blogic_adapter));
2461 myadapter->scsi_host = host;
2462 myadapter->host_no = host->host_no;
2463 /*
2464 Add Host Adapter to the end of the list of registered
2465 BusLogic Host Adapters.
2466 */
2467 list_add_tail(&myadapter->host_list, &blogic_host_list);
2468
2469 /*
2470 Read the Host Adapter Configuration, Configure the Host
2471 Adapter, Acquire the System Resources necessary to use
2472 the Host Adapter, then Create the Initial CCBs, Initialize
2473 the Host Adapter, and finally perform Target Device
2474 Inquiry. From this point onward, any failure will be
2475 assumed to be due to a problem with the Host Adapter,
2476 rather than due to having mistakenly identified this port
2477 as belonging to a BusLogic Host Adapter. The I/O Address
2478 range will not be released, thereby preventing it from
2479 being incorrectly identified as any other type of Host
2480 Adapter.
2481 */
2482 if (blogic_rdconfig(myadapter) &&
2483 blogic_reportconfig(myadapter) &&
2484 blogic_getres(myadapter) &&
2485 blogic_create_initccbs(myadapter) &&
2486 blogic_initadapter(myadapter) &&
2487 blogic_inquiry(myadapter)) {
2488 /*
2489 Initialization has been completed successfully.
2490 Release and re-register usage of the I/O Address
2491 range so that the Model Name of the Host Adapter
2492 will appear, and initialize the SCSI Host structure.
2493 */
2494 release_region(myadapter->io_addr,
2495 myadapter->addr_count);
2496 if (!request_region(myadapter->io_addr,
2497 myadapter->addr_count,
2498 myadapter->full_model)) {
2499 printk(KERN_WARNING
2500 "BusLogic: Release and re-register of "
2501 "port 0x%04lx failed \n",
2502 (unsigned long)myadapter->io_addr);
2503 blogic_destroy_ccbs(myadapter);
2504 blogic_relres(myadapter);
2505 list_del(&myadapter->host_list);
2506 scsi_host_put(host);
2507 ret = -ENOMEM;
2508 } else {
2509 blogic_inithoststruct(myadapter,
2510 host);
2511 if (scsi_add_host(host, myadapter->pci_device
2512 ? &myadapter->pci_device->dev
2513 : NULL)) {
2514 printk(KERN_WARNING
2515 "BusLogic: scsi_add_host()"
2516 "failed!\n");
2517 blogic_destroy_ccbs(myadapter);
2518 blogic_relres(myadapter);
2519 list_del(&myadapter->host_list);
2520 scsi_host_put(host);
2521 ret = -ENODEV;
2522 } else {
2523 scsi_scan_host(host);
2524 adapter_count++;
2525 }
2526 }
2527 } else {
2528 /*
2529 An error occurred during Host Adapter Configuration
2530 Querying, Host Adapter Configuration, Resource
2531 Acquisition, CCB Creation, Host Adapter
2532 Initialization, or Target Device Inquiry, so
2533 remove Host Adapter from the list of registered
2534 BusLogic Host Adapters, destroy the CCBs, Release
2535 the System Resources, and Unregister the SCSI
2536 Host.
2537 */
2538 blogic_destroy_ccbs(myadapter);
2539 blogic_relres(myadapter);
2540 list_del(&myadapter->host_list);
2541 scsi_host_put(host);
2542 ret = -ENODEV;
2543 }
2544 }
2545 kfree(adapter);
2546 kfree(blogic_probeinfo_list);
2547 blogic_probeinfo_list = NULL;
2548 return ret;
2549}
2550
2551
2552/*
2553 blogic_deladapter releases all resources previously acquired to
2554 support a specific Host Adapter, including the I/O Address range, and
2555 unregisters the BusLogic Host Adapter.
2556*/
2557
2558static int __exit blogic_deladapter(struct blogic_adapter *adapter)
2559{
2560 struct Scsi_Host *host = adapter->scsi_host;
2561
2562 scsi_remove_host(host);
2563
2564 /*
2565 FlashPoint Host Adapters must first be released by the FlashPoint
2566 SCCB Manager.
2567 */
2568 if (blogic_flashpoint_type(adapter))
2569 FlashPoint_ReleaseHostAdapter(adapter->cardhandle);
2570 /*
2571 Destroy the CCBs and release any system resources acquired to
2572 support Host Adapter.
2573 */
2574 blogic_destroy_ccbs(adapter);
2575 blogic_relres(adapter);
2576 /*
2577 Release usage of the I/O Address range.
2578 */
2579 release_region(adapter->io_addr, adapter->addr_count);
2580 /*
2581 Remove Host Adapter from the list of registered BusLogic
2582 Host Adapters.
2583 */
2584 list_del(&adapter->host_list);
2585
2586 scsi_host_put(host);
2587 return 0;
2588}
2589
2590
2591/*
2592 blogic_qcompleted_ccb queues CCB for completion processing.
2593*/
2594
2595static void blogic_qcompleted_ccb(struct blogic_ccb *ccb)
2596{
2597 struct blogic_adapter *adapter = ccb->adapter;
2598
2599 ccb->status = BLOGIC_CCB_COMPLETE;
2600 ccb->next = NULL;
2601 if (adapter->firstccb == NULL) {
2602 adapter->firstccb = ccb;
2603 adapter->lastccb = ccb;
2604 } else {
2605 adapter->lastccb->next = ccb;
2606 adapter->lastccb = ccb;
2607 }
2608 adapter->active_cmds[ccb->tgt_id]--;
2609}
2610
2611
2612/*
2613 blogic_resultcode computes a SCSI Subsystem Result Code from
2614 the Host Adapter Status and Target Device Status.
2615*/
2616
2617static int blogic_resultcode(struct blogic_adapter *adapter,
2618 enum blogic_adapter_status adapter_status,
2619 enum blogic_tgt_status tgt_status)
2620{
2621 int hoststatus;
2622
2623 switch (adapter_status) {
2624 case BLOGIC_CMD_CMPLT_NORMAL:
2625 case BLOGIC_LINK_CMD_CMPLT:
2626 case BLOGIC_LINK_CMD_CMPLT_FLAG:
2627 hoststatus = DID_OK;
2628 break;
2629 case BLOGIC_SELECT_TIMEOUT:
2630 hoststatus = DID_TIME_OUT;
2631 break;
2632 case BLOGIC_INVALID_OUTBOX_CODE:
2633 case BLOGIC_INVALID_CMD_CODE:
2634 case BLOGIC_BAD_CMD_PARAM:
2635 blogic_warn("BusLogic Driver Protocol Error 0x%02X\n",
2636 adapter, adapter_status);
2637 /* fall through */
2638 case BLOGIC_DATA_UNDERRUN:
2639 case BLOGIC_DATA_OVERRUN:
2640 case BLOGIC_NOEXPECT_BUSFREE:
2641 case BLOGIC_LINKCCB_BADLUN:
2642 case BLOGIC_AUTOREQSENSE_FAIL:
2643 case BLOGIC_TAGQUEUE_REJECT:
2644 case BLOGIC_BAD_MSG_RCVD:
2645 case BLOGIC_HW_FAIL:
2646 case BLOGIC_BAD_RECONNECT:
2647 case BLOGIC_ABRT_QUEUE:
2648 case BLOGIC_ADAPTER_SW_ERROR:
2649 case BLOGIC_HW_TIMEOUT:
2650 case BLOGIC_PARITY_ERR:
2651 hoststatus = DID_ERROR;
2652 break;
2653 case BLOGIC_INVALID_BUSPHASE:
2654 case BLOGIC_NORESPONSE_TO_ATN:
2655 case BLOGIC_HW_RESET:
2656 case BLOGIC_RST_FROM_OTHERDEV:
2657 case BLOGIC_HW_BDR:
2658 hoststatus = DID_RESET;
2659 break;
2660 default:
2661 blogic_warn("Unknown Host Adapter Status 0x%02X\n", adapter,
2662 adapter_status);
2663 hoststatus = DID_ERROR;
2664 break;
2665 }
2666 return (hoststatus << 16) | tgt_status;
2667}
2668
2669
2670/*
2671 blogic_scan_inbox scans the Incoming Mailboxes saving any
2672 Incoming Mailbox entries for completion processing.
2673*/
2674
2675static void blogic_scan_inbox(struct blogic_adapter *adapter)
2676{
2677 /*
2678 Scan through the Incoming Mailboxes in Strict Round Robin
2679 fashion, saving any completed CCBs for further processing. It
2680 is essential that for each CCB and SCSI Command issued, command
2681 completion processing is performed exactly once. Therefore,
2682 only Incoming Mailboxes with completion code Command Completed
2683 Without Error, Command Completed With Error, or Command Aborted
2684 At Host Request are saved for completion processing. When an
2685 Incoming Mailbox has a completion code of Aborted Command Not
2686 Found, the CCB had already completed or been aborted before the
2687 current Abort request was processed, and so completion processing
2688 has already occurred and no further action should be taken.
2689 */
2690 struct blogic_inbox *next_inbox = adapter->next_inbox;
2691 enum blogic_cmplt_code comp_code;
2692
2693 while ((comp_code = next_inbox->comp_code) != BLOGIC_INBOX_FREE) {
2694 /*
2695 We are only allowed to do this because we limit our
2696 architectures we run on to machines where bus_to_virt(
2697 actually works. There *needs* to be a dma_addr_to_virt()
2698 in the new PCI DMA mapping interface to replace
2699 bus_to_virt() or else this code is going to become very
2700 innefficient.
2701 */
2702 struct blogic_ccb *ccb =
2703 (struct blogic_ccb *) bus_to_virt(next_inbox->ccb);
2704 if (comp_code != BLOGIC_CMD_NOTFOUND) {
2705 if (ccb->status == BLOGIC_CCB_ACTIVE ||
2706 ccb->status == BLOGIC_CCB_RESET) {
2707 /*
2708 Save the Completion Code for this CCB and
2709 queue the CCB for completion processing.
2710 */
2711 ccb->comp_code = comp_code;
2712 blogic_qcompleted_ccb(ccb);
2713 } else {
2714 /*
2715 If a CCB ever appears in an Incoming Mailbox
2716 and is not marked as status Active or Reset,
2717 then there is most likely a bug in
2718 the Host Adapter firmware.
2719 */
2720 blogic_warn("Illegal CCB #%ld status %d in " "Incoming Mailbox\n", adapter, ccb->serial, ccb->status);
2721 }
2722 }
2723 next_inbox->comp_code = BLOGIC_INBOX_FREE;
2724 if (++next_inbox > adapter->last_inbox)
2725 next_inbox = adapter->first_inbox;
2726 }
2727 adapter->next_inbox = next_inbox;
2728}
2729
2730
2731/*
2732 blogic_process_ccbs iterates over the completed CCBs for Host
2733 Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and
2734 calling the SCSI Subsystem Completion Routines. The Host Adapter's Lock
2735 should already have been acquired by the caller.
2736*/
2737
2738static void blogic_process_ccbs(struct blogic_adapter *adapter)
2739{
2740 if (adapter->processing_ccbs)
2741 return;
2742 adapter->processing_ccbs = true;
2743 while (adapter->firstccb != NULL) {
2744 struct blogic_ccb *ccb = adapter->firstccb;
2745 struct scsi_cmnd *command = ccb->command;
2746 adapter->firstccb = ccb->next;
2747 if (adapter->firstccb == NULL)
2748 adapter->lastccb = NULL;
2749 /*
2750 Process the Completed CCB.
2751 */
2752 if (ccb->opcode == BLOGIC_BDR) {
2753 int tgt_id = ccb->tgt_id;
2754
2755 blogic_warn("Bus Device Reset CCB #%ld to Target " "%d Completed\n", adapter, ccb->serial, tgt_id);
2756 blogic_inc_count(&adapter->tgt_stats[tgt_id].bdr_done);
2757 adapter->tgt_flags[tgt_id].tagq_active = false;
2758 adapter->cmds_since_rst[tgt_id] = 0;
2759 adapter->last_resetdone[tgt_id] = jiffies;
2760 /*
2761 Place CCB back on the Host Adapter's free list.
2762 */
2763 blogic_dealloc_ccb(ccb, 1);
2764#if 0 /* this needs to be redone different for new EH */
2765 /*
2766 Bus Device Reset CCBs have the command field
2767 non-NULL only when a Bus Device Reset was requested
2768 for a command that did not have a currently active
2769 CCB in the Host Adapter (i.e., a Synchronous Bus
2770 Device Reset), and hence would not have its
2771 Completion Routine called otherwise.
2772 */
2773 while (command != NULL) {
2774 struct scsi_cmnd *nxt_cmd =
2775 command->reset_chain;
2776 command->reset_chain = NULL;
2777 command->result = DID_RESET << 16;
2778 command->scsi_done(command);
2779 command = nxt_cmd;
2780 }
2781#endif
2782 /*
2783 Iterate over the CCBs for this Host Adapter
2784 performing completion processing for any CCBs
2785 marked as Reset for this Target.
2786 */
2787 for (ccb = adapter->all_ccbs; ccb != NULL;
2788 ccb = ccb->next_all)
2789 if (ccb->status == BLOGIC_CCB_RESET &&
2790 ccb->tgt_id == tgt_id) {
2791 command = ccb->command;
2792 blogic_dealloc_ccb(ccb, 1);
2793 adapter->active_cmds[tgt_id]--;
2794 command->result = DID_RESET << 16;
2795 command->scsi_done(command);
2796 }
2797 adapter->bdr_pend[tgt_id] = NULL;
2798 } else {
2799 /*
2800 Translate the Completion Code, Host Adapter Status,
2801 and Target Device Status into a SCSI Subsystem
2802 Result Code.
2803 */
2804 switch (ccb->comp_code) {
2805 case BLOGIC_INBOX_FREE:
2806 case BLOGIC_CMD_NOTFOUND:
2807 case BLOGIC_INVALID_CCB:
2808 blogic_warn("CCB #%ld to Target %d Impossible State\n", adapter, ccb->serial, ccb->tgt_id);
2809 break;
2810 case BLOGIC_CMD_COMPLETE_GOOD:
2811 adapter->tgt_stats[ccb->tgt_id]
2812 .cmds_complete++;
2813 adapter->tgt_flags[ccb->tgt_id]
2814 .cmd_good = true;
2815 command->result = DID_OK << 16;
2816 break;
2817 case BLOGIC_CMD_ABORT_BY_HOST:
2818 blogic_warn("CCB #%ld to Target %d Aborted\n",
2819 adapter, ccb->serial, ccb->tgt_id);
2820 blogic_inc_count(&adapter->tgt_stats[ccb->tgt_id].aborts_done);
2821 command->result = DID_ABORT << 16;
2822 break;
2823 case BLOGIC_CMD_COMPLETE_ERROR:
2824 command->result = blogic_resultcode(adapter,
2825 ccb->adapter_status, ccb->tgt_status);
2826 if (ccb->adapter_status != BLOGIC_SELECT_TIMEOUT) {
2827 adapter->tgt_stats[ccb->tgt_id]
2828 .cmds_complete++;
2829 if (blogic_global_options.trace_err) {
2830 int i;
2831 blogic_notice("CCB #%ld Target %d: Result %X Host "
2832 "Adapter Status %02X " "Target Status %02X\n", adapter, ccb->serial, ccb->tgt_id, command->result, ccb->adapter_status, ccb->tgt_status);
2833 blogic_notice("CDB ", adapter);
2834 for (i = 0; i < ccb->cdblen; i++)
2835 blogic_notice(" %02X", adapter, ccb->cdb[i]);
2836 blogic_notice("\n", adapter);
2837 blogic_notice("Sense ", adapter);
2838 for (i = 0; i < ccb->sense_datalen; i++)
2839 blogic_notice(" %02X", adapter, command->sense_buffer[i]);
2840 blogic_notice("\n", adapter);
2841 }
2842 }
2843 break;
2844 }
2845 /*
2846 When an INQUIRY command completes normally, save the
2847 CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit
2848 Wide Data Transfers Supported) bits.
2849 */
2850 if (ccb->cdb[0] == INQUIRY && ccb->cdb[1] == 0 &&
2851 ccb->adapter_status == BLOGIC_CMD_CMPLT_NORMAL) {
2852 struct blogic_tgt_flags *tgt_flags =
2853 &adapter->tgt_flags[ccb->tgt_id];
2854 struct scsi_inquiry *inquiry =
2855 (struct scsi_inquiry *) scsi_sglist(command);
2856 tgt_flags->tgt_exists = true;
2857 tgt_flags->tagq_ok = inquiry->CmdQue;
2858 tgt_flags->wide_ok = inquiry->WBus16;
2859 }
2860 /*
2861 Place CCB back on the Host Adapter's free list.
2862 */
2863 blogic_dealloc_ccb(ccb, 1);
2864 /*
2865 Call the SCSI Command Completion Routine.
2866 */
2867 command->scsi_done(command);
2868 }
2869 }
2870 adapter->processing_ccbs = false;
2871}
2872
2873
2874/*
2875 blogic_inthandler handles hardware interrupts from BusLogic Host
2876 Adapters.
2877*/
2878
2879static irqreturn_t blogic_inthandler(int irq_ch, void *devid)
2880{
2881 struct blogic_adapter *adapter = (struct blogic_adapter *) devid;
2882 unsigned long processor_flag;
2883 /*
2884 Acquire exclusive access to Host Adapter.
2885 */
2886 spin_lock_irqsave(adapter->scsi_host->host_lock, processor_flag);
2887 /*
2888 Handle Interrupts appropriately for each Host Adapter type.
2889 */
2890 if (blogic_multimaster_type(adapter)) {
2891 union blogic_int_reg intreg;
2892 /*
2893 Read the Host Adapter Interrupt Register.
2894 */
2895 intreg.all = blogic_rdint(adapter);
2896 if (intreg.ir.int_valid) {
2897 /*
2898 Acknowledge the interrupt and reset the Host Adapter
2899 Interrupt Register.
2900 */
2901 blogic_intreset(adapter);
2902 /*
2903 Process valid External SCSI Bus Reset and Incoming
2904 Mailbox Loaded Interrupts. Command Complete
2905 Interrupts are noted, and Outgoing Mailbox Available
2906 Interrupts are ignored, as they are never enabled.
2907 */
2908 if (intreg.ir.ext_busreset)
2909 adapter->adapter_extreset = true;
2910 else if (intreg.ir.mailin_loaded)
2911 blogic_scan_inbox(adapter);
2912 else if (intreg.ir.cmd_complete)
2913 adapter->adapter_cmd_complete = true;
2914 }
2915 } else {
2916 /*
2917 Check if there is a pending interrupt for this Host Adapter.
2918 */
2919 if (FlashPoint_InterruptPending(adapter->cardhandle))
2920 switch (FlashPoint_HandleInterrupt(adapter->cardhandle)) {
2921 case FPOINT_NORMAL_INT:
2922 break;
2923 case FPOINT_EXT_RESET:
2924 adapter->adapter_extreset = true;
2925 break;
2926 case FPOINT_INTERN_ERR:
2927 blogic_warn("Internal FlashPoint Error detected - Resetting Host Adapter\n", adapter);
2928 adapter->adapter_intern_err = true;
2929 break;
2930 }
2931 }
2932 /*
2933 Process any completed CCBs.
2934 */
2935 if (adapter->firstccb != NULL)
2936 blogic_process_ccbs(adapter);
2937 /*
2938 Reset the Host Adapter if requested.
2939 */
2940 if (adapter->adapter_extreset) {
2941 blogic_warn("Resetting %s due to External SCSI Bus Reset\n", adapter, adapter->full_model);
2942 blogic_inc_count(&adapter->ext_resets);
2943 blogic_resetadapter(adapter, false);
2944 adapter->adapter_extreset = false;
2945 } else if (adapter->adapter_intern_err) {
2946 blogic_warn("Resetting %s due to Host Adapter Internal Error\n", adapter, adapter->full_model);
2947 blogic_inc_count(&adapter->adapter_intern_errors);
2948 blogic_resetadapter(adapter, true);
2949 adapter->adapter_intern_err = false;
2950 }
2951 /*
2952 Release exclusive access to Host Adapter.
2953 */
2954 spin_unlock_irqrestore(adapter->scsi_host->host_lock, processor_flag);
2955 return IRQ_HANDLED;
2956}
2957
2958
2959/*
2960 blogic_write_outbox places CCB and Action Code into an Outgoing
2961 Mailbox for execution by Host Adapter. The Host Adapter's Lock should
2962 already have been acquired by the caller.
2963*/
2964
2965static bool blogic_write_outbox(struct blogic_adapter *adapter,
2966 enum blogic_action action, struct blogic_ccb *ccb)
2967{
2968 struct blogic_outbox *next_outbox;
2969
2970 next_outbox = adapter->next_outbox;
2971 if (next_outbox->action == BLOGIC_OUTBOX_FREE) {
2972 ccb->status = BLOGIC_CCB_ACTIVE;
2973 /*
2974 The CCB field must be written before the Action Code field
2975 since the Host Adapter is operating asynchronously and the
2976 locking code does not protect against simultaneous access
2977 by the Host Adapter.
2978 */
2979 next_outbox->ccb = ccb->dma_handle;
2980 next_outbox->action = action;
2981 blogic_execmbox(adapter);
2982 if (++next_outbox > adapter->last_outbox)
2983 next_outbox = adapter->first_outbox;
2984 adapter->next_outbox = next_outbox;
2985 if (action == BLOGIC_MBOX_START) {
2986 adapter->active_cmds[ccb->tgt_id]++;
2987 if (ccb->opcode != BLOGIC_BDR)
2988 adapter->tgt_stats[ccb->tgt_id].cmds_tried++;
2989 }
2990 return true;
2991 }
2992 return false;
2993}
2994
2995/* Error Handling (EH) support */
2996
2997static int blogic_hostreset(struct scsi_cmnd *SCpnt)
2998{
2999 struct blogic_adapter *adapter =
3000 (struct blogic_adapter *) SCpnt->device->host->hostdata;
3001
3002 unsigned int id = SCpnt->device->id;
3003 struct blogic_tgt_stats *stats = &adapter->tgt_stats[id];
3004 int rc;
3005
3006 spin_lock_irq(SCpnt->device->host->host_lock);
3007
3008 blogic_inc_count(&stats->adapter_reset_req);
3009
3010 rc = blogic_resetadapter(adapter, false);
3011 spin_unlock_irq(SCpnt->device->host->host_lock);
3012 return rc;
3013}
3014
3015/*
3016 blogic_qcmd creates a CCB for Command and places it into an
3017 Outgoing Mailbox for execution by the associated Host Adapter.
3018*/
3019
3020static int blogic_qcmd_lck(struct scsi_cmnd *command,
3021 void (*comp_cb) (struct scsi_cmnd *))
3022{
3023 struct blogic_adapter *adapter =
3024 (struct blogic_adapter *) command->device->host->hostdata;
3025 struct blogic_tgt_flags *tgt_flags =
3026 &adapter->tgt_flags[command->device->id];
3027 struct blogic_tgt_stats *tgt_stats = adapter->tgt_stats;
3028 unsigned char *cdb = command->cmnd;
3029 int cdblen = command->cmd_len;
3030 int tgt_id = command->device->id;
3031 int lun = command->device->lun;
3032 int buflen = scsi_bufflen(command);
3033 int count;
3034 struct blogic_ccb *ccb;
3035 dma_addr_t sense_buf;
3036
3037 /*
3038 SCSI REQUEST_SENSE commands will be executed automatically by the
3039 Host Adapter for any errors, so they should not be executed
3040 explicitly unless the Sense Data is zero indicating that no error
3041 occurred.
3042 */
3043 if (cdb[0] == REQUEST_SENSE && command->sense_buffer[0] != 0) {
3044 command->result = DID_OK << 16;
3045 comp_cb(command);
3046 return 0;
3047 }
3048 /*
3049 Allocate a CCB from the Host Adapter's free list. In the unlikely
3050 event that there are none available and memory allocation fails,
3051 wait 1 second and try again. If that fails, the Host Adapter is
3052 probably hung so signal an error as a Host Adapter Hard Reset
3053 should be initiated soon.
3054 */
3055 ccb = blogic_alloc_ccb(adapter);
3056 if (ccb == NULL) {
3057 spin_unlock_irq(adapter->scsi_host->host_lock);
3058 blogic_delay(1);
3059 spin_lock_irq(adapter->scsi_host->host_lock);
3060 ccb = blogic_alloc_ccb(adapter);
3061 if (ccb == NULL) {
3062 command->result = DID_ERROR << 16;
3063 comp_cb(command);
3064 return 0;
3065 }
3066 }
3067
3068 /*
3069 Initialize the fields in the BusLogic Command Control Block (CCB).
3070 */
3071 count = scsi_dma_map(command);
3072 BUG_ON(count < 0);
3073 if (count) {
3074 struct scatterlist *sg;
3075 int i;
3076
3077 ccb->opcode = BLOGIC_INITIATOR_CCB_SG;
3078 ccb->datalen = count * sizeof(struct blogic_sg_seg);
3079 if (blogic_multimaster_type(adapter))
3080 ccb->data = (void *)((unsigned int) ccb->dma_handle +
3081 ((unsigned long) &ccb->sglist -
3082 (unsigned long) ccb));
3083 else
3084 ccb->data = ccb->sglist;
3085
3086 scsi_for_each_sg(command, sg, count, i) {
3087 ccb->sglist[i].segbytes = sg_dma_len(sg);
3088 ccb->sglist[i].segdata = sg_dma_address(sg);
3089 }
3090 } else if (!count) {
3091 ccb->opcode = BLOGIC_INITIATOR_CCB;
3092 ccb->datalen = buflen;
3093 ccb->data = 0;
3094 }
3095
3096 switch (cdb[0]) {
3097 case READ_6:
3098 case READ_10:
3099 ccb->datadir = BLOGIC_DATAIN_CHECKED;
3100 tgt_stats[tgt_id].read_cmds++;
3101 blogic_addcount(&tgt_stats[tgt_id].bytesread, buflen);
3102 blogic_incszbucket(tgt_stats[tgt_id].read_sz_buckets, buflen);
3103 break;
3104 case WRITE_6:
3105 case WRITE_10:
3106 ccb->datadir = BLOGIC_DATAOUT_CHECKED;
3107 tgt_stats[tgt_id].write_cmds++;
3108 blogic_addcount(&tgt_stats[tgt_id].byteswritten, buflen);
3109 blogic_incszbucket(tgt_stats[tgt_id].write_sz_buckets, buflen);
3110 break;
3111 default:
3112 ccb->datadir = BLOGIC_UNCHECKED_TX;
3113 break;
3114 }
3115 ccb->cdblen = cdblen;
3116 ccb->adapter_status = 0;
3117 ccb->tgt_status = 0;
3118 ccb->tgt_id = tgt_id;
3119 ccb->lun = lun;
3120 ccb->tag_enable = false;
3121 ccb->legacytag_enable = false;
3122 /*
3123 BusLogic recommends that after a Reset the first couple of
3124 commands that are sent to a Target Device be sent in a non
3125 Tagged Queue fashion so that the Host Adapter and Target Device
3126 can establish Synchronous and Wide Transfer before Queue Tag
3127 messages can interfere with the Synchronous and Wide Negotiation
3128 messages. By waiting to enable Tagged Queuing until after the
3129 first BLOGIC_MAX_TAG_DEPTH commands have been queued, it is
3130 assured that after a Reset any pending commands are requeued
3131 before Tagged Queuing is enabled and that the Tagged Queuing
3132 message will not occur while the partition table is being printed.
3133 In addition, some devices do not properly handle the transition
3134 from non-tagged to tagged commands, so it is necessary to wait
3135 until there are no pending commands for a target device
3136 before queuing tagged commands.
3137 */
3138 if (adapter->cmds_since_rst[tgt_id]++ >= BLOGIC_MAX_TAG_DEPTH &&
3139 !tgt_flags->tagq_active &&
3140 adapter->active_cmds[tgt_id] == 0
3141 && tgt_flags->tagq_ok &&
3142 (adapter->tagq_ok & (1 << tgt_id))) {
3143 tgt_flags->tagq_active = true;
3144 blogic_notice("Tagged Queuing now active for Target %d\n",
3145 adapter, tgt_id);
3146 }
3147 if (tgt_flags->tagq_active) {
3148 enum blogic_queuetag queuetag = BLOGIC_SIMPLETAG;
3149 /*
3150 When using Tagged Queuing with Simple Queue Tags, it
3151 appears that disk drive controllers do not guarantee that
3152 a queued command will not remain in a disconnected state
3153 indefinitely if commands that read or write nearer the
3154 head position continue to arrive without interruption.
3155 Therefore, for each Target Device this driver keeps track
3156 of the last time either the queue was empty or an Ordered
3157 Queue Tag was issued. If more than 4 seconds (one fifth
3158 of the 20 second disk timeout) have elapsed since this
3159 last sequence point, this command will be issued with an
3160 Ordered Queue Tag rather than a Simple Queue Tag, which
3161 forces the Target Device to complete all previously
3162 queued commands before this command may be executed.
3163 */
3164 if (adapter->active_cmds[tgt_id] == 0)
3165 adapter->last_seqpoint[tgt_id] = jiffies;
3166 else if (time_after(jiffies,
3167 adapter->last_seqpoint[tgt_id] + 4 * HZ)) {
3168 adapter->last_seqpoint[tgt_id] = jiffies;
3169 queuetag = BLOGIC_ORDEREDTAG;
3170 }
3171 if (adapter->ext_lun) {
3172 ccb->tag_enable = true;
3173 ccb->queuetag = queuetag;
3174 } else {
3175 ccb->legacytag_enable = true;
3176 ccb->legacy_tag = queuetag;
3177 }
3178 }
3179 memcpy(ccb->cdb, cdb, cdblen);
3180 ccb->sense_datalen = SCSI_SENSE_BUFFERSIZE;
3181 ccb->command = command;
3182 sense_buf = dma_map_single(&adapter->pci_device->dev,
3183 command->sense_buffer, ccb->sense_datalen,
3184 DMA_FROM_DEVICE);
3185 if (dma_mapping_error(&adapter->pci_device->dev, sense_buf)) {
3186 blogic_err("DMA mapping for sense data buffer failed\n",
3187 adapter);
3188 blogic_dealloc_ccb(ccb, 0);
3189 return SCSI_MLQUEUE_HOST_BUSY;
3190 }
3191 ccb->sensedata = sense_buf;
3192 command->scsi_done = comp_cb;
3193 if (blogic_multimaster_type(adapter)) {
3194 /*
3195 Place the CCB in an Outgoing Mailbox. The higher levels
3196 of the SCSI Subsystem should not attempt to queue more
3197 commands than can be placed in Outgoing Mailboxes, so
3198 there should always be one free. In the unlikely event
3199 that there are none available, wait 1 second and try
3200 again. If that fails, the Host Adapter is probably hung
3201 so signal an error as a Host Adapter Hard Reset should
3202 be initiated soon.
3203 */
3204 if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, ccb)) {
3205 spin_unlock_irq(adapter->scsi_host->host_lock);
3206 blogic_warn("Unable to write Outgoing Mailbox - " "Pausing for 1 second\n", adapter);
3207 blogic_delay(1);
3208 spin_lock_irq(adapter->scsi_host->host_lock);
3209 if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START,
3210 ccb)) {
3211 blogic_warn("Still unable to write Outgoing Mailbox - " "Host Adapter Dead?\n", adapter);
3212 blogic_dealloc_ccb(ccb, 1);
3213 command->result = DID_ERROR << 16;
3214 command->scsi_done(command);
3215 }
3216 }
3217 } else {
3218 /*
3219 Call the FlashPoint SCCB Manager to start execution of
3220 the CCB.
3221 */
3222 ccb->status = BLOGIC_CCB_ACTIVE;
3223 adapter->active_cmds[tgt_id]++;
3224 tgt_stats[tgt_id].cmds_tried++;
3225 FlashPoint_StartCCB(adapter->cardhandle, ccb);
3226 /*
3227 The Command may have already completed and
3228 blogic_qcompleted_ccb been called, or it may still be
3229 pending.
3230 */
3231 if (ccb->status == BLOGIC_CCB_COMPLETE)
3232 blogic_process_ccbs(adapter);
3233 }
3234 return 0;
3235}
3236
3237static DEF_SCSI_QCMD(blogic_qcmd)
3238
3239#if 0
3240/*
3241 blogic_abort aborts Command if possible.
3242*/
3243
3244static int blogic_abort(struct scsi_cmnd *command)
3245{
3246 struct blogic_adapter *adapter =
3247 (struct blogic_adapter *) command->device->host->hostdata;
3248
3249 int tgt_id = command->device->id;
3250 struct blogic_ccb *ccb;
3251 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_request);
3252
3253 /*
3254 Attempt to find an Active CCB for this Command. If no Active
3255 CCB for this Command is found, then no Abort is necessary.
3256 */
3257 for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
3258 if (ccb->command == command)
3259 break;
3260 if (ccb == NULL) {
3261 blogic_warn("Unable to Abort Command to Target %d - No CCB Found\n", adapter, tgt_id);
3262 return SUCCESS;
3263 } else if (ccb->status == BLOGIC_CCB_COMPLETE) {
3264 blogic_warn("Unable to Abort Command to Target %d - CCB Completed\n", adapter, tgt_id);
3265 return SUCCESS;
3266 } else if (ccb->status == BLOGIC_CCB_RESET) {
3267 blogic_warn("Unable to Abort Command to Target %d - CCB Reset\n", adapter, tgt_id);
3268 return SUCCESS;
3269 }
3270 if (blogic_multimaster_type(adapter)) {
3271 /*
3272 Attempt to Abort this CCB. MultiMaster Firmware versions
3273 prior to 5.xx do not generate Abort Tag messages, but only
3274 generate the non-tagged Abort message. Since non-tagged
3275 commands are not sent by the Host Adapter until the queue
3276 of outstanding tagged commands has completed, and the
3277 Abort message is treated as a non-tagged command, it is
3278 effectively impossible to abort commands when Tagged
3279 Queuing is active. Firmware version 5.xx does generate
3280 Abort Tag messages, so it is possible to abort commands
3281 when Tagged Queuing is active.
3282 */
3283 if (adapter->tgt_flags[tgt_id].tagq_active &&
3284 adapter->fw_ver[0] < '5') {
3285 blogic_warn("Unable to Abort CCB #%ld to Target %d - Abort Tag Not Supported\n", adapter, ccb->serial, tgt_id);
3286 return FAILURE;
3287 } else if (blogic_write_outbox(adapter, BLOGIC_MBOX_ABORT,
3288 ccb)) {
3289 blogic_warn("Aborting CCB #%ld to Target %d\n",
3290 adapter, ccb->serial, tgt_id);
3291 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
3292 return SUCCESS;
3293 } else {
3294 blogic_warn("Unable to Abort CCB #%ld to Target %d - No Outgoing Mailboxes\n", adapter, ccb->serial, tgt_id);
3295 return FAILURE;
3296 }
3297 } else {
3298 /*
3299 Call the FlashPoint SCCB Manager to abort execution of
3300 the CCB.
3301 */
3302 blogic_warn("Aborting CCB #%ld to Target %d\n", adapter,
3303 ccb->serial, tgt_id);
3304 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
3305 FlashPoint_AbortCCB(adapter->cardhandle, ccb);
3306 /*
3307 The Abort may have already been completed and
3308 blogic_qcompleted_ccb been called, or it
3309 may still be pending.
3310 */
3311 if (ccb->status == BLOGIC_CCB_COMPLETE)
3312 blogic_process_ccbs(adapter);
3313 return SUCCESS;
3314 }
3315 return SUCCESS;
3316}
3317
3318#endif
3319/*
3320 blogic_resetadapter resets Host Adapter if possible, marking all
3321 currently executing SCSI Commands as having been Reset.
3322*/
3323
3324static int blogic_resetadapter(struct blogic_adapter *adapter, bool hard_reset)
3325{
3326 struct blogic_ccb *ccb;
3327 int tgt_id;
3328
3329 /*
3330 * Attempt to Reset and Reinitialize the Host Adapter.
3331 */
3332
3333 if (!(blogic_hwreset(adapter, hard_reset) &&
3334 blogic_initadapter(adapter))) {
3335 blogic_err("Resetting %s Failed\n", adapter,
3336 adapter->full_model);
3337 return FAILURE;
3338 }
3339
3340 /*
3341 * Deallocate all currently executing CCBs.
3342 */
3343
3344 for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
3345 if (ccb->status == BLOGIC_CCB_ACTIVE)
3346 blogic_dealloc_ccb(ccb, 1);
3347 /*
3348 * Wait a few seconds between the Host Adapter Hard Reset which
3349 * initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
3350 * SCSI devices get confused if they receive SCSI Commands too soon
3351 * after a SCSI Bus Reset.
3352 */
3353
3354 if (hard_reset) {
3355 spin_unlock_irq(adapter->scsi_host->host_lock);
3356 blogic_delay(adapter->bus_settle_time);
3357 spin_lock_irq(adapter->scsi_host->host_lock);
3358 }
3359
3360 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
3361 adapter->last_resettried[tgt_id] = jiffies;
3362 adapter->last_resetdone[tgt_id] = jiffies;
3363 }
3364 return SUCCESS;
3365}
3366
3367/*
3368 blogic_diskparam returns the Heads/Sectors/Cylinders BIOS Disk
3369 Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and
3370 the appropriate number of cylinders so as not to exceed drive capacity. In
3371 order for disks equal to or larger than 1 GB to be addressable by the BIOS
3372 without exceeding the BIOS limitation of 1024 cylinders, Extended Translation
3373 may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C"
3374 series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A"
3375 series MultiMaster Host Adapters. With Extended Translation enabled, drives
3376 between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128
3377 heads and 32 sectors, and drives above 2 GB inclusive are given a disk
3378 geometry of 255 heads and 63 sectors. However, if the BIOS detects that the
3379 Extended Translation setting does not match the geometry in the partition
3380 table, then the translation inferred from the partition table will be used by
3381 the BIOS, and a warning may be displayed.
3382*/
3383
3384static int blogic_diskparam(struct scsi_device *sdev, struct block_device *dev,
3385 sector_t capacity, int *params)
3386{
3387 struct blogic_adapter *adapter =
3388 (struct blogic_adapter *) sdev->host->hostdata;
3389 struct bios_diskparam *diskparam = (struct bios_diskparam *) params;
3390 unsigned char *buf;
3391
3392 if (adapter->ext_trans_enable && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */) {
3393 if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */) {
3394 diskparam->heads = 255;
3395 diskparam->sectors = 63;
3396 } else {
3397 diskparam->heads = 128;
3398 diskparam->sectors = 32;
3399 }
3400 } else {
3401 diskparam->heads = 64;
3402 diskparam->sectors = 32;
3403 }
3404 diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
3405 buf = scsi_bios_ptable(dev);
3406 if (buf == NULL)
3407 return 0;
3408 /*
3409 If the boot sector partition table flag is valid, search for
3410 a partition table entry whose end_head matches one of the
3411 standard BusLogic geometry translations (64/32, 128/32, or 255/63).
3412 */
3413 if (*(unsigned short *) (buf + 64) == 0xAA55) {
3414 struct partition *part1_entry = (struct partition *) buf;
3415 struct partition *part_entry = part1_entry;
3416 int saved_cyl = diskparam->cylinders, part_no;
3417 unsigned char part_end_head = 0, part_end_sector = 0;
3418
3419 for (part_no = 0; part_no < 4; part_no++) {
3420 part_end_head = part_entry->end_head;
3421 part_end_sector = part_entry->end_sector & 0x3F;
3422 if (part_end_head == 64 - 1) {
3423 diskparam->heads = 64;
3424 diskparam->sectors = 32;
3425 break;
3426 } else if (part_end_head == 128 - 1) {
3427 diskparam->heads = 128;
3428 diskparam->sectors = 32;
3429 break;
3430 } else if (part_end_head == 255 - 1) {
3431 diskparam->heads = 255;
3432 diskparam->sectors = 63;
3433 break;
3434 }
3435 part_entry++;
3436 }
3437 if (part_no == 4) {
3438 part_end_head = part1_entry->end_head;
3439 part_end_sector = part1_entry->end_sector & 0x3F;
3440 }
3441 diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
3442 if (part_no < 4 && part_end_sector == diskparam->sectors) {
3443 if (diskparam->cylinders != saved_cyl)
3444 blogic_warn("Adopting Geometry %d/%d from Partition Table\n", adapter, diskparam->heads, diskparam->sectors);
3445 } else if (part_end_head > 0 || part_end_sector > 0) {
3446 blogic_warn("Warning: Partition Table appears to " "have Geometry %d/%d which is\n", adapter, part_end_head + 1, part_end_sector);
3447 blogic_warn("not compatible with current BusLogic " "Host Adapter Geometry %d/%d\n", adapter, diskparam->heads, diskparam->sectors);
3448 }
3449 }
3450 kfree(buf);
3451 return 0;
3452}
3453
3454
3455/*
3456 BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>.
3457*/
3458
3459static int blogic_write_info(struct Scsi_Host *shost, char *procbuf,
3460 int bytes_avail)
3461{
3462 struct blogic_adapter *adapter =
3463 (struct blogic_adapter *) shost->hostdata;
3464 struct blogic_tgt_stats *tgt_stats;
3465
3466 tgt_stats = adapter->tgt_stats;
3467 adapter->ext_resets = 0;
3468 adapter->adapter_intern_errors = 0;
3469 memset(tgt_stats, 0, BLOGIC_MAXDEV * sizeof(struct blogic_tgt_stats));
3470 return 0;
3471}
3472
3473static int blogic_show_info(struct seq_file *m, struct Scsi_Host *shost)
3474{
3475 struct blogic_adapter *adapter = (struct blogic_adapter *) shost->hostdata;
3476 struct blogic_tgt_stats *tgt_stats;
3477 int tgt;
3478
3479 tgt_stats = adapter->tgt_stats;
3480 seq_write(m, adapter->msgbuf, adapter->msgbuflen);
3481 seq_printf(m, "\n\
3482Current Driver Queue Depth: %d\n\
3483Currently Allocated CCBs: %d\n", adapter->drvr_qdepth, adapter->alloc_ccbs);
3484 seq_puts(m, "\n\n\
3485 DATA TRANSFER STATISTICS\n\
3486\n\
3487Target Tagged Queuing Queue Depth Active Attempted Completed\n\
3488====== ============== =========== ====== ========= =========\n");
3489 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3490 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3491 if (!tgt_flags->tgt_exists)
3492 continue;
3493 seq_printf(m, " %2d %s", tgt, (tgt_flags->tagq_ok ? (tgt_flags->tagq_active ? " Active" : (adapter->tagq_ok & (1 << tgt)
3494 ? " Permitted" : " Disabled"))
3495 : "Not Supported"));
3496 seq_printf(m,
3497 " %3d %3u %9u %9u\n", adapter->qdepth[tgt], adapter->active_cmds[tgt], tgt_stats[tgt].cmds_tried, tgt_stats[tgt].cmds_complete);
3498 }
3499 seq_puts(m, "\n\
3500Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\
3501====== ============= ============== =================== ===================\n");
3502 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3503 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3504 if (!tgt_flags->tgt_exists)
3505 continue;
3506 seq_printf(m, " %2d %9u %9u", tgt, tgt_stats[tgt].read_cmds, tgt_stats[tgt].write_cmds);
3507 if (tgt_stats[tgt].bytesread.billions > 0)
3508 seq_printf(m, " %9u%09u", tgt_stats[tgt].bytesread.billions, tgt_stats[tgt].bytesread.units);
3509 else
3510 seq_printf(m, " %9u", tgt_stats[tgt].bytesread.units);
3511 if (tgt_stats[tgt].byteswritten.billions > 0)
3512 seq_printf(m, " %9u%09u\n", tgt_stats[tgt].byteswritten.billions, tgt_stats[tgt].byteswritten.units);
3513 else
3514 seq_printf(m, " %9u\n", tgt_stats[tgt].byteswritten.units);
3515 }
3516 seq_puts(m, "\n\
3517Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\
3518====== ======= ========= ========= ========= ========= =========\n");
3519 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3520 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3521 if (!tgt_flags->tgt_exists)
3522 continue;
3523 seq_printf(m,
3524 " %2d Read %9u %9u %9u %9u %9u\n", tgt,
3525 tgt_stats[tgt].read_sz_buckets[0],
3526 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]);
3527 seq_printf(m,
3528 " %2d Write %9u %9u %9u %9u %9u\n", tgt,
3529 tgt_stats[tgt].write_sz_buckets[0],
3530 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]);
3531 }
3532 seq_puts(m, "\n\
3533Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\
3534====== ======= ========= ========= ========= ========= =========\n");
3535 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3536 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3537 if (!tgt_flags->tgt_exists)
3538 continue;
3539 seq_printf(m,
3540 " %2d Read %9u %9u %9u %9u %9u\n", tgt,
3541 tgt_stats[tgt].read_sz_buckets[5],
3542 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]);
3543 seq_printf(m,
3544 " %2d Write %9u %9u %9u %9u %9u\n", tgt,
3545 tgt_stats[tgt].write_sz_buckets[5],
3546 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]);
3547 }
3548 seq_puts(m, "\n\n\
3549 ERROR RECOVERY STATISTICS\n\
3550\n\
3551 Command Aborts Bus Device Resets Host Adapter Resets\n\
3552Target Requested Completed Requested Completed Requested Completed\n\
3553 ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\
3554====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n");
3555 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3556 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3557 if (!tgt_flags->tgt_exists)
3558 continue;
3559 seq_printf(m, " %2d %5d %5d %5d %5d %5d %5d %5d %5d %5d\n",
3560 tgt, tgt_stats[tgt].aborts_request,
3561 tgt_stats[tgt].aborts_tried,
3562 tgt_stats[tgt].aborts_done,
3563 tgt_stats[tgt].bdr_request,
3564 tgt_stats[tgt].bdr_tried,
3565 tgt_stats[tgt].bdr_done,
3566 tgt_stats[tgt].adapter_reset_req,
3567 tgt_stats[tgt].adapter_reset_attempt,
3568 tgt_stats[tgt].adapter_reset_done);
3569 }
3570 seq_printf(m, "\nExternal Host Adapter Resets: %d\n", adapter->ext_resets);
3571 seq_printf(m, "Host Adapter Internal Errors: %d\n", adapter->adapter_intern_errors);
3572 return 0;
3573}
3574
3575
3576/*
3577 blogic_msg prints Driver Messages.
3578*/
3579
3580static void blogic_msg(enum blogic_msglevel msglevel, char *fmt,
3581 struct blogic_adapter *adapter, ...)
3582{
3583 static char buf[BLOGIC_LINEBUF_SIZE];
3584 static bool begin = true;
3585 va_list args;
3586 int len = 0;
3587
3588 va_start(args, adapter);
3589 len = vsprintf(buf, fmt, args);
3590 va_end(args);
3591 if (msglevel == BLOGIC_ANNOUNCE_LEVEL) {
3592 static int msglines = 0;
3593 strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
3594 adapter->msgbuflen += len;
3595 if (++msglines <= 2)
3596 printk("%sscsi: %s", blogic_msglevelmap[msglevel], buf);
3597 } else if (msglevel == BLOGIC_INFO_LEVEL) {
3598 strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
3599 adapter->msgbuflen += len;
3600 if (begin) {
3601 if (buf[0] != '\n' || len > 1)
3602 printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
3603 } else
3604 printk("%s", buf);
3605 } else {
3606 if (begin) {
3607 if (adapter != NULL && adapter->adapter_initd)
3608 printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
3609 else
3610 printk("%s%s", blogic_msglevelmap[msglevel], buf);
3611 } else
3612 printk("%s", buf);
3613 }
3614 begin = (buf[len - 1] == '\n');
3615}
3616
3617
3618/*
3619 blogic_parse parses an individual option keyword. It returns true
3620 and updates the pointer if the keyword is recognized and false otherwise.
3621*/
3622
3623static bool __init blogic_parse(char **str, char *keyword)
3624{
3625 char *pointer = *str;
3626 while (*keyword != '\0') {
3627 char strch = *pointer++;
3628 char keywordch = *keyword++;
3629 if (strch >= 'A' && strch <= 'Z')
3630 strch += 'a' - 'Z';
3631 if (keywordch >= 'A' && keywordch <= 'Z')
3632 keywordch += 'a' - 'Z';
3633 if (strch != keywordch)
3634 return false;
3635 }
3636 *str = pointer;
3637 return true;
3638}
3639
3640
3641/*
3642 blogic_parseopts handles processing of BusLogic Driver Options
3643 specifications.
3644
3645 BusLogic Driver Options may be specified either via the Linux Kernel Command
3646 Line or via the Loadable Kernel Module Installation Facility. Driver Options
3647 for multiple host adapters may be specified either by separating the option
3648 strings by a semicolon, or by specifying multiple "BusLogic=" strings on the
3649 command line. Individual option specifications for a single host adapter are
3650 separated by commas. The Probing and Debugging Options apply to all host
3651 adapters whereas the remaining options apply individually only to the
3652 selected host adapter.
3653
3654 The BusLogic Driver Probing Options are described in
3655 <file:Documentation/scsi/BusLogic.txt>.
3656*/
3657
3658static int __init blogic_parseopts(char *options)
3659{
3660 while (true) {
3661 struct blogic_drvr_options *drvr_opts =
3662 &blogic_drvr_options[blogic_drvr_options_count++];
3663 int tgt_id;
3664
3665 memset(drvr_opts, 0, sizeof(struct blogic_drvr_options));
3666 while (*options != '\0' && *options != ';') {
3667 /* Probing Options. */
3668 if (blogic_parse(&options, "IO:")) {
3669 unsigned long io_addr = simple_strtoul(options,
3670 &options, 0);
3671 blogic_probe_options.limited_isa = true;
3672 switch (io_addr) {
3673 case 0x330:
3674 blogic_probe_options.probe330 = true;
3675 break;
3676 case 0x334:
3677 blogic_probe_options.probe334 = true;
3678 break;
3679 case 0x230:
3680 blogic_probe_options.probe230 = true;
3681 break;
3682 case 0x234:
3683 blogic_probe_options.probe234 = true;
3684 break;
3685 case 0x130:
3686 blogic_probe_options.probe130 = true;
3687 break;
3688 case 0x134:
3689 blogic_probe_options.probe134 = true;
3690 break;
3691 default:
3692 blogic_err("BusLogic: Invalid Driver Options " "(invalid I/O Address 0x%X)\n", NULL, io_addr);
3693 return 0;
3694 }
3695 } else if (blogic_parse(&options, "NoProbeISA"))
3696 blogic_probe_options.noprobe_isa = true;
3697 else if (blogic_parse(&options, "NoProbePCI"))
3698 blogic_probe_options.noprobe_pci = true;
3699 else if (blogic_parse(&options, "NoProbe"))
3700 blogic_probe_options.noprobe = true;
3701 else if (blogic_parse(&options, "NoSortPCI"))
3702 blogic_probe_options.nosort_pci = true;
3703 else if (blogic_parse(&options, "MultiMasterFirst"))
3704 blogic_probe_options.multimaster_first = true;
3705 else if (blogic_parse(&options, "FlashPointFirst"))
3706 blogic_probe_options.flashpoint_first = true;
3707 /* Tagged Queuing Options. */
3708 else if (blogic_parse(&options, "QueueDepth:[") ||
3709 blogic_parse(&options, "QD:[")) {
3710 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
3711 unsigned short qdepth = simple_strtoul(options, &options, 0);
3712 if (qdepth > BLOGIC_MAX_TAG_DEPTH) {
3713 blogic_err("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, qdepth);
3714 return 0;
3715 }
3716 drvr_opts->qdepth[tgt_id] = qdepth;
3717 if (*options == ',')
3718 options++;
3719 else if (*options == ']')
3720 break;
3721 else {
3722 blogic_err("BusLogic: Invalid Driver Options " "(',' or ']' expected at '%s')\n", NULL, options);
3723 return 0;
3724 }
3725 }
3726 if (*options != ']') {
3727 blogic_err("BusLogic: Invalid Driver Options " "(']' expected at '%s')\n", NULL, options);
3728 return 0;
3729 } else
3730 options++;
3731 } else if (blogic_parse(&options, "QueueDepth:") || blogic_parse(&options, "QD:")) {
3732 unsigned short qdepth = simple_strtoul(options, &options, 0);
3733 if (qdepth == 0 ||
3734 qdepth > BLOGIC_MAX_TAG_DEPTH) {
3735 blogic_err("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, qdepth);
3736 return 0;
3737 }
3738 drvr_opts->common_qdepth = qdepth;
3739 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
3740 drvr_opts->qdepth[tgt_id] = qdepth;
3741 } else if (blogic_parse(&options, "TaggedQueuing:") ||
3742 blogic_parse(&options, "TQ:")) {
3743 if (blogic_parse(&options, "Default")) {
3744 drvr_opts->tagq_ok = 0x0000;
3745 drvr_opts->tagq_ok_mask = 0x0000;
3746 } else if (blogic_parse(&options, "Enable")) {
3747 drvr_opts->tagq_ok = 0xFFFF;
3748 drvr_opts->tagq_ok_mask = 0xFFFF;
3749 } else if (blogic_parse(&options, "Disable")) {
3750 drvr_opts->tagq_ok = 0x0000;
3751 drvr_opts->tagq_ok_mask = 0xFFFF;
3752 } else {
3753 unsigned short tgt_bit;
3754 for (tgt_id = 0, tgt_bit = 1;
3755 tgt_id < BLOGIC_MAXDEV;
3756 tgt_id++, tgt_bit <<= 1)
3757 switch (*options++) {
3758 case 'Y':
3759 drvr_opts->tagq_ok |= tgt_bit;
3760 drvr_opts->tagq_ok_mask |= tgt_bit;
3761 break;
3762 case 'N':
3763 drvr_opts->tagq_ok &= ~tgt_bit;
3764 drvr_opts->tagq_ok_mask |= tgt_bit;
3765 break;
3766 case 'X':
3767 break;
3768 default:
3769 options--;
3770 tgt_id = BLOGIC_MAXDEV;
3771 break;
3772 }
3773 }
3774 }
3775 /* Miscellaneous Options. */
3776 else if (blogic_parse(&options, "BusSettleTime:") ||
3777 blogic_parse(&options, "BST:")) {
3778 unsigned short bus_settle_time =
3779 simple_strtoul(options, &options, 0);
3780 if (bus_settle_time > 5 * 60) {
3781 blogic_err("BusLogic: Invalid Driver Options " "(invalid Bus Settle Time %d)\n", NULL, bus_settle_time);
3782 return 0;
3783 }
3784 drvr_opts->bus_settle_time = bus_settle_time;
3785 } else if (blogic_parse(&options,
3786 "InhibitTargetInquiry"))
3787 drvr_opts->stop_tgt_inquiry = true;
3788 /* Debugging Options. */
3789 else if (blogic_parse(&options, "TraceProbe"))
3790 blogic_global_options.trace_probe = true;
3791 else if (blogic_parse(&options, "TraceHardwareReset"))
3792 blogic_global_options.trace_hw_reset = true;
3793 else if (blogic_parse(&options, "TraceConfiguration"))
3794 blogic_global_options.trace_config = true;
3795 else if (blogic_parse(&options, "TraceErrors"))
3796 blogic_global_options.trace_err = true;
3797 else if (blogic_parse(&options, "Debug")) {
3798 blogic_global_options.trace_probe = true;
3799 blogic_global_options.trace_hw_reset = true;
3800 blogic_global_options.trace_config = true;
3801 blogic_global_options.trace_err = true;
3802 }
3803 if (*options == ',')
3804 options++;
3805 else if (*options != ';' && *options != '\0') {
3806 blogic_err("BusLogic: Unexpected Driver Option '%s' " "ignored\n", NULL, options);
3807 *options = '\0';
3808 }
3809 }
3810 if (!(blogic_drvr_options_count == 0 ||
3811 blogic_probeinfo_count == 0 ||
3812 blogic_drvr_options_count == blogic_probeinfo_count)) {
3813 blogic_err("BusLogic: Invalid Driver Options " "(all or no I/O Addresses must be specified)\n", NULL);
3814 return 0;
3815 }
3816 /*
3817 Tagged Queuing is disabled when the Queue Depth is 1 since queuing
3818 multiple commands is not possible.
3819 */
3820 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
3821 if (drvr_opts->qdepth[tgt_id] == 1) {
3822 unsigned short tgt_bit = 1 << tgt_id;
3823 drvr_opts->tagq_ok &= ~tgt_bit;
3824 drvr_opts->tagq_ok_mask |= tgt_bit;
3825 }
3826 if (*options == ';')
3827 options++;
3828 if (*options == '\0')
3829 return 0;
3830 }
3831 return 1;
3832}
3833
3834/*
3835 Get it all started
3836*/
3837
3838static struct scsi_host_template blogic_template = {
3839 .module = THIS_MODULE,
3840 .proc_name = "BusLogic",
3841 .write_info = blogic_write_info,
3842 .show_info = blogic_show_info,
3843 .name = "BusLogic",
3844 .info = blogic_drvr_info,
3845 .queuecommand = blogic_qcmd,
3846 .slave_configure = blogic_slaveconfig,
3847 .bios_param = blogic_diskparam,
3848 .eh_host_reset_handler = blogic_hostreset,
3849#if 0
3850 .eh_abort_handler = blogic_abort,
3851#endif
3852 .unchecked_isa_dma = 1,
3853 .max_sectors = 128,
3854};
3855
3856/*
3857 blogic_setup handles processing of Kernel Command Line Arguments.
3858*/
3859
3860static int __init blogic_setup(char *str)
3861{
3862 int ints[3];
3863
3864 (void) get_options(str, ARRAY_SIZE(ints), ints);
3865
3866 if (ints[0] != 0) {
3867 blogic_err("BusLogic: Obsolete Command Line Entry " "Format Ignored\n", NULL);
3868 return 0;
3869 }
3870 if (str == NULL || *str == '\0')
3871 return 0;
3872 return blogic_parseopts(str);
3873}
3874
3875/*
3876 * Exit function. Deletes all hosts associated with this driver.
3877 */
3878
3879static void __exit blogic_exit(void)
3880{
3881 struct blogic_adapter *ha, *next;
3882
3883 list_for_each_entry_safe(ha, next, &blogic_host_list, host_list)
3884 blogic_deladapter(ha);
3885}
3886
3887__setup("BusLogic=", blogic_setup);
3888
3889#ifdef MODULE
3890/*static struct pci_device_id blogic_pci_tbl[] = {
3891 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
3892 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3893 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
3894 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3895 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
3896 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3897 { }
3898};*/
3899static const struct pci_device_id blogic_pci_tbl[] = {
3900 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER)},
3901 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC)},
3902 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT)},
3903 {0, },
3904};
3905#endif
3906MODULE_DEVICE_TABLE(pci, blogic_pci_tbl);
3907
3908module_init(blogic_init);
3909module_exit(blogic_exit);