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