blob: 1ddcf4031d4cf6b21dac5bb95e06ae7117eb577a [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070032#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>
Marcelo Feitoza Parisi60c904a2006-03-28 01:56:47 -080043#include <linux/jiffies.h>
Matthias Gehre910638a2006-03-28 01:56:48 -080044#include <linux/dma-mapping.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070045#include <scsi/scsicam.h>
46
47#include <asm/dma.h>
48#include <asm/io.h>
49#include <asm/system.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
Richard Knutsson2065e312007-02-05 16:39:01 -0800195static bool __init BusLogic_CreateInitialCCBs(struct BusLogic_HostAdapter *HostAdapter)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196{
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
Richard Knutsson2065e312007-02-05 16:39:01 -0800241static void BusLogic_CreateAdditionalCCBs(struct BusLogic_HostAdapter *HostAdapter, int AdditionalCCBs, bool SuccessMessageP)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242{
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;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307
FUJITA Tomonoriddc914c72007-05-14 15:43:56 +0900308 scsi_dma_unmap(CCB->Command);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 pci_unmap_single(HostAdapter->PCI_Device, CCB->SenseDataPointer,
FUJITA Tomonoriddc914c72007-05-14 15:43:56 +0900310 CCB->SenseDataLength, PCI_DMA_FROMDEVICE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311
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 */
Jiri Kosina44746432007-02-01 16:43:07 -0800357 if (!HostAdapter->IRQ_ChannelAcquired)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 local_irq_save(ProcessorFlags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 /*
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 */
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500574 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe330)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575 BusLogic_AppendProbeAddressISA(0x330);
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500576 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe334)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577 BusLogic_AppendProbeAddressISA(0x334);
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500578 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe230)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579 BusLogic_AppendProbeAddressISA(0x230);
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500580 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe234)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581 BusLogic_AppendProbeAddressISA(0x234);
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500582 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe130)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583 BusLogic_AppendProbeAddressISA(0x130);
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500584 if (!BusLogic_ProbeOptions.LimitedProbeISA || BusLogic_ProbeOptions.Probe134)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585 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;
Richard Knutsson2065e312007-02-05 16:39:01 -0800632 bool ForceBusDeviceScanningOrder = false;
633 bool ForceBusDeviceScanningOrderChecked = false;
634 bool StandardAddressSeen[6];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 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;
Alan Coxa07f3532006-09-15 15:34:32 +0100655 while ((PCI_Device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER, PCI_Device)) != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656 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
Yang Hongyang284901a2009-04-06 19:01:15 -0700670 if (pci_set_dma_mask(PCI_Device, DMA_BIT_MASK(32) ))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671 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;
Alan Coxa07f3532006-09-15 15:34:32 +0100755 PrimaryProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756 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;
Alan Coxa07f3532006-09-15 15:34:32 +0100766 ProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767 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)
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500790 if (PrimaryProbeInfo->IO_Address == 0 &&
791 (!BusLogic_ProbeOptions.LimitedProbeISA ||
792 BusLogic_ProbeOptions.Probe330)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793 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) {
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500802 if (!StandardAddressSeen[1] &&
803 (!BusLogic_ProbeOptions.LimitedProbeISA ||
804 BusLogic_ProbeOptions.Probe334))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700805 BusLogic_AppendProbeAddressISA(0x334);
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500806 if (!StandardAddressSeen[2] &&
807 (!BusLogic_ProbeOptions.LimitedProbeISA ||
808 BusLogic_ProbeOptions.Probe230))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809 BusLogic_AppendProbeAddressISA(0x230);
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500810 if (!StandardAddressSeen[3] &&
811 (!BusLogic_ProbeOptions.LimitedProbeISA ||
812 BusLogic_ProbeOptions.Probe234))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700813 BusLogic_AppendProbeAddressISA(0x234);
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500814 if (!StandardAddressSeen[4] &&
815 (!BusLogic_ProbeOptions.LimitedProbeISA ||
816 BusLogic_ProbeOptions.Probe130))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817 BusLogic_AppendProbeAddressISA(0x130);
Zachary Amsden1079a2d2007-04-10 08:53:08 -0500818 if (!StandardAddressSeen[5] &&
819 (!BusLogic_ProbeOptions.LimitedProbeISA ||
820 BusLogic_ProbeOptions.Probe134))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821 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;
Alan Coxa07f3532006-09-15 15:34:32 +0100828 while ((PCI_Device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC, PCI_Device)) != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700829 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
Yang Hongyang284901a2009-04-06 19:01:15 -0700837 if (pci_set_dma_mask(PCI_Device, DMA_BIT_MASK(32)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838 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;
Alan Coxa07f3532006-09-15 15:34:32 +0100855 ProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856 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 */
Alan Coxa07f3532006-09-15 15:34:32 +0100879 while ((PCI_Device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT, PCI_Device)) != NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880 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
Yang Hongyang284901a2009-04-06 19:01:15 -0700891 if (pci_set_dma_mask(PCI_Device, DMA_BIT_MASK(32)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892 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);
Matthew Wilcox78b4b052008-03-13 06:55:08 -0600899#ifdef CONFIG_SCSI_FLASHPOINT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900 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;
Alan Coxa07f3532006-09-15 15:34:32 +0100928 ProbeInfo->PCI_Device = pci_dev_get(PCI_Device);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929 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
Matthew Wilcox78b4b052008-03-13 06:55:08 -06001009#else
1010#define BusLogic_InitializeProbeInfoList(adapter) \
1011 BusLogic_InitializeProbeInfoListISA(adapter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012#endif /* CONFIG_PCI */
1013
1014
1015/*
1016 BusLogic_Failure prints a standardized error message, and then returns false.
1017*/
1018
Richard Knutsson2065e312007-02-05 16:39:01 -08001019static bool BusLogic_Failure(struct BusLogic_HostAdapter *HostAdapter, char *ErrorMessage)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001020{
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
Richard Knutsson2065e312007-02-05 16:39:01 -08001038static bool __init BusLogic_ProbeHostAdapter(struct BusLogic_HostAdapter *HostAdapter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039{
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
Richard Knutsson2065e312007-02-05 16:39:01 -08001109static bool BusLogic_HardwareResetHostAdapter(struct BusLogic_HostAdapter
1110 *HostAdapter, bool HardReset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111{
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
Richard Knutsson2065e312007-02-05 16:39:01 -08001213static bool __init BusLogic_CheckHostAdapter(struct BusLogic_HostAdapter *HostAdapter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001214{
1215 struct BusLogic_ExtendedSetupInformation ExtendedSetupInformation;
1216 unsigned char RequestedReplyLength;
Richard Knutsson2065e312007-02-05 16:39:01 -08001217 bool Result = true;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001218 /*
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
Richard Knutsson2065e312007-02-05 16:39:01 -08001247static bool __init BusLogic_ReadHostAdapterConfiguration(struct BusLogic_HostAdapter
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248 *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
Richard Knutsson2065e312007-02-05 16:39:01 -08001694static bool __init BusLogic_ReportHostAdapterConfiguration(struct BusLogic_HostAdapter
Linus Torvalds1da177e2005-04-16 15:20:36 -07001695 *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;
Richard Knutsson2065e312007-02-05 16:39:01 -08001701 bool CommonSynchronousNegotiation, CommonTaggedQueueDepth;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001702 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
Richard Knutsson2065e312007-02-05 16:39:01 -08001843static bool __init BusLogic_AcquireResources(struct BusLogic_HostAdapter *HostAdapter)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001844{
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 */
Thomas Gleixner1d6f3592006-07-01 19:29:42 -07001852 if (request_irq(HostAdapter->IRQ_Channel, BusLogic_InterruptHandler, IRQF_SHARED, HostAdapter->FullModelName, HostAdapter) < 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001853 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);
Alan Coxa07f3532006-09-15 15:34:32 +01001898 pci_dev_put(HostAdapter->PCI_Device);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899 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
Richard Knutsson2065e312007-02-05 16:39:01 -08001911static bool BusLogic_InitializeHostAdapter(struct BusLogic_HostAdapter
Linus Torvalds1da177e2005-04-16 15:20:36 -07001912 *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
Richard Knutsson2065e312007-02-05 16:39:01 -08002010static bool __init BusLogic_TargetDeviceInquiry(struct BusLogic_HostAdapter
Linus Torvalds1da177e2005-04-16 15:20:36 -07002011 *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;
Daniel Walkerd2afb3a2006-08-14 23:09:23 -07002185 int ret = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002186
2187#ifdef MODULE
2188 if (BusLogic)
2189 BusLogic_Setup(BusLogic);
2190#endif
2191
2192 if (BusLogic_ProbeOptions.NoProbe)
2193 return -ENODEV;
Jeff Garzikdb3a8812006-11-08 19:56:20 -08002194 BusLogic_ProbeInfoList =
2195 kzalloc(BusLogic_MaxHostAdapters * sizeof(struct BusLogic_ProbeInfo), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002196 if (BusLogic_ProbeInfoList == NULL) {
2197 BusLogic_Error("BusLogic: Unable to allocate Probe Info List\n", NULL);
2198 return -ENOMEM;
2199 }
Jeff Garzikdb3a8812006-11-08 19:56:20 -08002200
2201 PrototypeHostAdapter =
2202 kzalloc(sizeof(struct BusLogic_HostAdapter), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203 if (PrototypeHostAdapter == NULL) {
2204 kfree(BusLogic_ProbeInfoList);
2205 BusLogic_Error("BusLogic: Unable to allocate Prototype " "Host Adapter\n", NULL);
2206 return -ENOMEM;
2207 }
Jeff Garzikdb3a8812006-11-08 19:56:20 -08002208
Linus Torvalds1da177e2005-04-16 15:20:36 -07002209#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;
Petr Vandrovec745caf72006-01-11 11:31:07 -08002227 HostAdapter->PCI_Device = ProbeInfo->PCI_Device;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002228 HostAdapter->IRQ_Channel = ProbeInfo->IRQ_Channel;
2229 HostAdapter->AddressCount = BusLogic_HostAdapterAddressCount[HostAdapter->HostAdapterType];
Zachary Amsden1079a2d2007-04-10 08:53:08 -05002230
2231 /*
2232 Make sure region is free prior to probing.
2233 */
2234 if (!request_region(HostAdapter->IO_Address, HostAdapter->AddressCount,
2235 "BusLogic"))
2236 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002237 /*
2238 Probe the Host Adapter. If unsuccessful, abort further initialization.
2239 */
Zachary Amsden1079a2d2007-04-10 08:53:08 -05002240 if (!BusLogic_ProbeHostAdapter(HostAdapter)) {
2241 release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002242 continue;
Zachary Amsden1079a2d2007-04-10 08:53:08 -05002243 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002244 /*
2245 Hard Reset the Host Adapter. If unsuccessful, abort further
2246 initialization.
2247 */
Zachary Amsden1079a2d2007-04-10 08:53:08 -05002248 if (!BusLogic_HardwareResetHostAdapter(HostAdapter, true)) {
2249 release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002250 continue;
Zachary Amsden1079a2d2007-04-10 08:53:08 -05002251 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002252 /*
2253 Check the Host Adapter. If unsuccessful, abort further initialization.
2254 */
Zachary Amsden1079a2d2007-04-10 08:53:08 -05002255 if (!BusLogic_CheckHostAdapter(HostAdapter)) {
2256 release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002257 continue;
Zachary Amsden1079a2d2007-04-10 08:53:08 -05002258 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002259 /*
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 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002270 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.
Zachary Amsden1079a2d2007-04-10 08:53:08 -05002293
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.
Linus Torvalds1da177e2005-04-16 15:20:36 -07002299 */
2300 if (BusLogic_ReadHostAdapterConfiguration(HostAdapter) &&
Daniel Walkerd2afb3a2006-08-14 23:09:23 -07002301 BusLogic_ReportHostAdapterConfiguration(HostAdapter) &&
2302 BusLogic_AcquireResources(HostAdapter) &&
2303 BusLogic_CreateInitialCCBs(HostAdapter) &&
2304 BusLogic_InitializeHostAdapter(HostAdapter) &&
2305 BusLogic_TargetDeviceInquiry(HostAdapter)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002306 /*
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 */
Daniel Walkerd2afb3a2006-08-14 23:09:23 -07002312 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002321 BusLogic_DestroyCCBs(HostAdapter);
2322 BusLogic_ReleaseResources(HostAdapter);
2323 list_del(&HostAdapter->host_list);
2324 scsi_host_put(Host);
Daniel Walkerd2afb3a2006-08-14 23:09:23 -07002325 ret = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002326 } else {
Daniel Walkerd2afb3a2006-08-14 23:09:23 -07002327 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 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002344 }
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);
Daniel Walkerd2afb3a2006-08-14 23:09:23 -07002358 ret = -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002359 }
2360 }
2361 kfree(PrototypeHostAdapter);
2362 kfree(BusLogic_ProbeInfoList);
2363 BusLogic_ProbeInfoList = NULL;
Daniel Walkerd2afb3a2006-08-14 23:09:23 -07002364 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002365}
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];
FUJITA Tomonoriddc914c72007-05-14 15:43:56 +09002646 struct SCSI_Inquiry *InquiryResult =
2647 (struct SCSI_Inquiry *) scsi_sglist(Command);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002648 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
David Howells7d12e782006-10-05 14:55:46 +01002671static irqreturn_t BusLogic_InterruptHandler(int IRQ_Channel, void *DeviceIdentifier)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002672{
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
Richard Knutsson2065e312007-02-05 16:39:01 -08002757static bool BusLogic_WriteOutgoingMailbox(struct BusLogic_HostAdapter
Linus Torvalds1da177e2005-04-16 15:20:36 -07002758 *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];
Jeff Garzik df0ae242005-05-28 07:57:14 -04002793 int rc;
2794
2795 spin_lock_irq(SCpnt->device->host->host_lock);
2796
Linus Torvalds1da177e2005-04-16 15:20:36 -07002797 BusLogic_IncrementErrorCounter(&stats->HostAdapterResetsRequested);
2798
Jeff Garzik df0ae242005-05-28 07:57:14 -04002799 rc = BusLogic_ResetHostAdapter(HostAdapter, false);
2800 spin_unlock_irq(SCpnt->device->host->host_lock);
2801 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002802}
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(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;
FUJITA Tomonoriddc914c72007-05-14 15:43:56 +09002818 int BufferLength = scsi_bufflen(Command);
2819 int Count;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002820 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 }
FUJITA Tomonoriddc914c72007-05-14 15:43:56 +09002849
Linus Torvalds1da177e2005-04-16 15:20:36 -07002850 /*
2851 Initialize the fields in the BusLogic Command Control Block (CCB).
2852 */
FUJITA Tomonoriddc914c72007-05-14 15:43:56 +09002853 Count = scsi_dma_map(Command);
2854 BUG_ON(Count < 0);
2855 if (Count) {
2856 struct scatterlist *sg;
2857 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002858
Linus Torvalds1da177e2005-04-16 15:20:36 -07002859 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);
FUJITA Tomonoriddc914c72007-05-14 15:43:56 +09002865
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);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002871 }
FUJITA Tomonoriddc914c72007-05-14 15:43:56 +09002872 } else if (!Count) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002873 CCB->Opcode = BusLogic_InitiatorCCB;
2874 CCB->DataLength = BufferLength;
2875 CCB->DataPointer = 0;
2876 }
FUJITA Tomonoriddc914c72007-05-14 15:43:56 +09002877
Linus Torvalds1da177e2005-04-16 15:20:36 -07002878 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;
Marcelo Feitoza Parisi60c904a2006-03-28 01:56:47 -08002940 else if (time_after(jiffies, HostAdapter->LastSequencePoint[TargetID] + 4 * HZ)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002941 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);
FUJITA Tomonorib80ca4f2008-01-13 15:46:13 +09002953 CCB->SenseDataLength = SCSI_SENSE_BUFFERSIZE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002954 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
2996
Daniel Walkerd2afb3a2006-08-14 23:09:23 -07002997#if 0
Linus Torvalds1da177e2005-04-16 15:20:36 -07002998/*
2999 BusLogic_AbortCommand aborts Command if possible.
3000*/
3001
3002static int BusLogic_AbortCommand(struct scsi_cmnd *Command)
3003{
3004 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Command->device->host->hostdata;
3005
3006 int TargetID = Command->device->id;
3007 struct BusLogic_CCB *CCB;
3008 BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsRequested);
3009 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003010 Attempt to find an Active CCB for this Command. If no Active CCB for this
3011 Command is found, then no Abort is necessary.
3012 */
3013 for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll)
3014 if (CCB->Command == Command)
3015 break;
3016 if (CCB == NULL) {
3017 BusLogic_Warning("Unable to Abort Command to Target %d - " "No CCB Found\n", HostAdapter, TargetID);
3018 return SUCCESS;
3019 } else if (CCB->Status == BusLogic_CCB_Completed) {
3020 BusLogic_Warning("Unable to Abort Command to Target %d - " "CCB Completed\n", HostAdapter, TargetID);
3021 return SUCCESS;
3022 } else if (CCB->Status == BusLogic_CCB_Reset) {
3023 BusLogic_Warning("Unable to Abort Command to Target %d - " "CCB Reset\n", HostAdapter, TargetID);
3024 return SUCCESS;
3025 }
3026 if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) {
3027 /*
3028 Attempt to Abort this CCB. MultiMaster Firmware versions prior to 5.xx
3029 do not generate Abort Tag messages, but only generate the non-tagged
3030 Abort message. Since non-tagged commands are not sent by the Host
3031 Adapter until the queue of outstanding tagged commands has completed,
3032 and the Abort message is treated as a non-tagged command, it is
3033 effectively impossible to abort commands when Tagged Queuing is active.
3034 Firmware version 5.xx does generate Abort Tag messages, so it is
3035 possible to abort commands when Tagged Queuing is active.
3036 */
3037 if (HostAdapter->TargetFlags[TargetID].TaggedQueuingActive && HostAdapter->FirmwareVersion[0] < '5') {
3038 BusLogic_Warning("Unable to Abort CCB #%ld to Target %d - " "Abort Tag Not Supported\n", HostAdapter, CCB->SerialNumber, TargetID);
3039 return FAILURE;
3040 } else if (BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxAbortCommand, CCB)) {
3041 BusLogic_Warning("Aborting CCB #%ld to Target %d\n", HostAdapter, CCB->SerialNumber, TargetID);
3042 BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsAttempted);
3043 return SUCCESS;
3044 } else {
3045 BusLogic_Warning("Unable to Abort CCB #%ld to Target %d - " "No Outgoing Mailboxes\n", HostAdapter, CCB->SerialNumber, TargetID);
3046 return FAILURE;
3047 }
3048 } else {
3049 /*
3050 Call the FlashPoint SCCB Manager to abort execution of the CCB.
3051 */
3052 BusLogic_Warning("Aborting CCB #%ld to Target %d\n", HostAdapter, CCB->SerialNumber, TargetID);
3053 BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsAttempted);
3054 FlashPoint_AbortCCB(HostAdapter->CardHandle, CCB);
3055 /*
3056 The Abort may have already been completed and
3057 BusLogic_QueueCompletedCCB been called, or it
3058 may still be pending.
3059 */
3060 if (CCB->Status == BusLogic_CCB_Completed) {
3061 BusLogic_ProcessCompletedCCBs(HostAdapter);
3062 }
3063 return SUCCESS;
3064 }
3065 return SUCCESS;
3066}
3067
Daniel Walkerd2afb3a2006-08-14 23:09:23 -07003068#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07003069/*
3070 BusLogic_ResetHostAdapter resets Host Adapter if possible, marking all
3071 currently executing SCSI Commands as having been Reset.
3072*/
3073
Richard Knutsson2065e312007-02-05 16:39:01 -08003074static int BusLogic_ResetHostAdapter(struct BusLogic_HostAdapter *HostAdapter, bool HardReset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003075{
3076 struct BusLogic_CCB *CCB;
3077 int TargetID;
3078
3079 /*
3080 * Attempt to Reset and Reinitialize the Host Adapter.
3081 */
3082
3083 if (!(BusLogic_HardwareResetHostAdapter(HostAdapter, HardReset) && BusLogic_InitializeHostAdapter(HostAdapter))) {
3084 BusLogic_Error("Resetting %s Failed\n", HostAdapter, HostAdapter->FullModelName);
3085 return FAILURE;
3086 }
3087
3088 /*
3089 * Deallocate all currently executing CCBs.
3090 */
3091
3092 for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll)
3093 if (CCB->Status == BusLogic_CCB_Active)
3094 BusLogic_DeallocateCCB(CCB);
3095 /*
3096 * Wait a few seconds between the Host Adapter Hard Reset which
3097 * initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
3098 * SCSI devices get confused if they receive SCSI Commands too soon
3099 * after a SCSI Bus Reset.
3100 */
3101
3102 if (HardReset) {
3103 spin_unlock_irq(HostAdapter->SCSI_Host->host_lock);
3104 BusLogic_Delay(HostAdapter->BusSettleTime);
3105 spin_lock_irq(HostAdapter->SCSI_Host->host_lock);
3106 }
3107
3108 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3109 HostAdapter->LastResetAttempted[TargetID] = jiffies;
3110 HostAdapter->LastResetCompleted[TargetID] = jiffies;
3111 }
3112 return SUCCESS;
3113}
3114
3115/*
3116 BusLogic_BIOSDiskParameters returns the Heads/Sectors/Cylinders BIOS Disk
3117 Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and
3118 the appropriate number of cylinders so as not to exceed drive capacity. In
3119 order for disks equal to or larger than 1 GB to be addressable by the BIOS
3120 without exceeding the BIOS limitation of 1024 cylinders, Extended Translation
3121 may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C"
3122 series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A"
3123 series MultiMaster Host Adapters. With Extended Translation enabled, drives
3124 between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128
3125 heads and 32 sectors, and drives above 2 GB inclusive are given a disk
3126 geometry of 255 heads and 63 sectors. However, if the BIOS detects that the
3127 Extended Translation setting does not match the geometry in the partition
3128 table, then the translation inferred from the partition table will be used by
3129 the BIOS, and a warning may be displayed.
3130*/
3131
3132static int BusLogic_BIOSDiskParameters(struct scsi_device *sdev, struct block_device *Device, sector_t capacity, int *Parameters)
3133{
3134 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) sdev->host->hostdata;
3135 struct BIOS_DiskParameters *DiskParameters = (struct BIOS_DiskParameters *) Parameters;
3136 unsigned char *buf;
3137 if (HostAdapter->ExtendedTranslationEnabled && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */ ) {
3138 if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */ ) {
3139 DiskParameters->Heads = 255;
3140 DiskParameters->Sectors = 63;
3141 } else {
3142 DiskParameters->Heads = 128;
3143 DiskParameters->Sectors = 32;
3144 }
3145 } else {
3146 DiskParameters->Heads = 64;
3147 DiskParameters->Sectors = 32;
3148 }
3149 DiskParameters->Cylinders = (unsigned long) capacity / (DiskParameters->Heads * DiskParameters->Sectors);
3150 buf = scsi_bios_ptable(Device);
3151 if (buf == NULL)
3152 return 0;
3153 /*
3154 If the boot sector partition table flag is valid, search for a partition
3155 table entry whose end_head matches one of the standard BusLogic geometry
3156 translations (64/32, 128/32, or 255/63).
3157 */
3158 if (*(unsigned short *) (buf + 64) == 0xAA55) {
3159 struct partition *FirstPartitionEntry = (struct partition *) buf;
3160 struct partition *PartitionEntry = FirstPartitionEntry;
3161 int SavedCylinders = DiskParameters->Cylinders, PartitionNumber;
3162 unsigned char PartitionEntryEndHead = 0, PartitionEntryEndSector = 0;
3163 for (PartitionNumber = 0; PartitionNumber < 4; PartitionNumber++) {
3164 PartitionEntryEndHead = PartitionEntry->end_head;
3165 PartitionEntryEndSector = PartitionEntry->end_sector & 0x3F;
3166 if (PartitionEntryEndHead == 64 - 1) {
3167 DiskParameters->Heads = 64;
3168 DiskParameters->Sectors = 32;
3169 break;
3170 } else if (PartitionEntryEndHead == 128 - 1) {
3171 DiskParameters->Heads = 128;
3172 DiskParameters->Sectors = 32;
3173 break;
3174 } else if (PartitionEntryEndHead == 255 - 1) {
3175 DiskParameters->Heads = 255;
3176 DiskParameters->Sectors = 63;
3177 break;
3178 }
3179 PartitionEntry++;
3180 }
3181 if (PartitionNumber == 4) {
3182 PartitionEntryEndHead = FirstPartitionEntry->end_head;
3183 PartitionEntryEndSector = FirstPartitionEntry->end_sector & 0x3F;
3184 }
3185 DiskParameters->Cylinders = (unsigned long) capacity / (DiskParameters->Heads * DiskParameters->Sectors);
3186 if (PartitionNumber < 4 && PartitionEntryEndSector == DiskParameters->Sectors) {
3187 if (DiskParameters->Cylinders != SavedCylinders)
3188 BusLogic_Warning("Adopting Geometry %d/%d from Partition Table\n", HostAdapter, DiskParameters->Heads, DiskParameters->Sectors);
3189 } else if (PartitionEntryEndHead > 0 || PartitionEntryEndSector > 0) {
3190 BusLogic_Warning("Warning: Partition Table appears to " "have Geometry %d/%d which is\n", HostAdapter, PartitionEntryEndHead + 1, PartitionEntryEndSector);
3191 BusLogic_Warning("not compatible with current BusLogic " "Host Adapter Geometry %d/%d\n", HostAdapter, DiskParameters->Heads, DiskParameters->Sectors);
3192 }
3193 }
3194 kfree(buf);
3195 return 0;
3196}
3197
3198
3199/*
3200 BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>.
3201*/
3202
3203static int BusLogic_ProcDirectoryInfo(struct Scsi_Host *shost, char *ProcBuffer, char **StartPointer, off_t Offset, int BytesAvailable, int WriteFlag)
3204{
3205 struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) shost->hostdata;
3206 struct BusLogic_TargetStatistics *TargetStatistics;
3207 int TargetID, Length;
3208 char *Buffer;
3209
3210 TargetStatistics = HostAdapter->TargetStatistics;
3211 if (WriteFlag) {
3212 HostAdapter->ExternalHostAdapterResets = 0;
3213 HostAdapter->HostAdapterInternalErrors = 0;
3214 memset(TargetStatistics, 0, BusLogic_MaxTargetDevices * sizeof(struct BusLogic_TargetStatistics));
3215 return 0;
3216 }
3217 Buffer = HostAdapter->MessageBuffer;
3218 Length = HostAdapter->MessageBufferLength;
3219 Length += sprintf(&Buffer[Length], "\n\
3220Current Driver Queue Depth: %d\n\
3221Currently Allocated CCBs: %d\n", HostAdapter->DriverQueueDepth, HostAdapter->AllocatedCCBs);
3222 Length += sprintf(&Buffer[Length], "\n\n\
3223 DATA TRANSFER STATISTICS\n\
3224\n\
3225Target Tagged Queuing Queue Depth Active Attempted Completed\n\
3226====== ============== =========== ====== ========= =========\n");
3227 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3228 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3229 if (!TargetFlags->TargetExists)
3230 continue;
3231 Length += sprintf(&Buffer[Length], " %2d %s", TargetID, (TargetFlags->TaggedQueuingSupported ? (TargetFlags->TaggedQueuingActive ? " Active" : (HostAdapter->TaggedQueuingPermitted & (1 << TargetID)
3232 ? " Permitted" : " Disabled"))
3233 : "Not Supported"));
3234 Length += sprintf(&Buffer[Length],
3235 " %3d %3u %9u %9u\n", HostAdapter->QueueDepth[TargetID], HostAdapter->ActiveCommands[TargetID], TargetStatistics[TargetID].CommandsAttempted, TargetStatistics[TargetID].CommandsCompleted);
3236 }
3237 Length += sprintf(&Buffer[Length], "\n\
3238Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\
3239====== ============= ============== =================== ===================\n");
3240 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3241 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3242 if (!TargetFlags->TargetExists)
3243 continue;
3244 Length += sprintf(&Buffer[Length], " %2d %9u %9u", TargetID, TargetStatistics[TargetID].ReadCommands, TargetStatistics[TargetID].WriteCommands);
3245 if (TargetStatistics[TargetID].TotalBytesRead.Billions > 0)
3246 Length += sprintf(&Buffer[Length], " %9u%09u", TargetStatistics[TargetID].TotalBytesRead.Billions, TargetStatistics[TargetID].TotalBytesRead.Units);
3247 else
3248 Length += sprintf(&Buffer[Length], " %9u", TargetStatistics[TargetID].TotalBytesRead.Units);
3249 if (TargetStatistics[TargetID].TotalBytesWritten.Billions > 0)
3250 Length += sprintf(&Buffer[Length], " %9u%09u\n", TargetStatistics[TargetID].TotalBytesWritten.Billions, TargetStatistics[TargetID].TotalBytesWritten.Units);
3251 else
3252 Length += sprintf(&Buffer[Length], " %9u\n", TargetStatistics[TargetID].TotalBytesWritten.Units);
3253 }
3254 Length += sprintf(&Buffer[Length], "\n\
3255Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\
3256====== ======= ========= ========= ========= ========= =========\n");
3257 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3258 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3259 if (!TargetFlags->TargetExists)
3260 continue;
3261 Length +=
3262 sprintf(&Buffer[Length],
3263 " %2d Read %9u %9u %9u %9u %9u\n", TargetID,
3264 TargetStatistics[TargetID].ReadCommandSizeBuckets[0],
3265 TargetStatistics[TargetID].ReadCommandSizeBuckets[1], TargetStatistics[TargetID].ReadCommandSizeBuckets[2], TargetStatistics[TargetID].ReadCommandSizeBuckets[3], TargetStatistics[TargetID].ReadCommandSizeBuckets[4]);
3266 Length +=
3267 sprintf(&Buffer[Length],
3268 " %2d Write %9u %9u %9u %9u %9u\n", TargetID,
3269 TargetStatistics[TargetID].WriteCommandSizeBuckets[0],
3270 TargetStatistics[TargetID].WriteCommandSizeBuckets[1], TargetStatistics[TargetID].WriteCommandSizeBuckets[2], TargetStatistics[TargetID].WriteCommandSizeBuckets[3], TargetStatistics[TargetID].WriteCommandSizeBuckets[4]);
3271 }
3272 Length += sprintf(&Buffer[Length], "\n\
3273Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\
3274====== ======= ========= ========= ========= ========= =========\n");
3275 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3276 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3277 if (!TargetFlags->TargetExists)
3278 continue;
3279 Length +=
3280 sprintf(&Buffer[Length],
3281 " %2d Read %9u %9u %9u %9u %9u\n", TargetID,
3282 TargetStatistics[TargetID].ReadCommandSizeBuckets[5],
3283 TargetStatistics[TargetID].ReadCommandSizeBuckets[6], TargetStatistics[TargetID].ReadCommandSizeBuckets[7], TargetStatistics[TargetID].ReadCommandSizeBuckets[8], TargetStatistics[TargetID].ReadCommandSizeBuckets[9]);
3284 Length +=
3285 sprintf(&Buffer[Length],
3286 " %2d Write %9u %9u %9u %9u %9u\n", TargetID,
3287 TargetStatistics[TargetID].WriteCommandSizeBuckets[5],
3288 TargetStatistics[TargetID].WriteCommandSizeBuckets[6], TargetStatistics[TargetID].WriteCommandSizeBuckets[7], TargetStatistics[TargetID].WriteCommandSizeBuckets[8], TargetStatistics[TargetID].WriteCommandSizeBuckets[9]);
3289 }
3290 Length += sprintf(&Buffer[Length], "\n\n\
3291 ERROR RECOVERY STATISTICS\n\
3292\n\
3293 Command Aborts Bus Device Resets Host Adapter Resets\n\
3294Target Requested Completed Requested Completed Requested Completed\n\
3295 ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\
3296====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n");
3297 for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) {
3298 struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID];
3299 if (!TargetFlags->TargetExists)
3300 continue;
3301 Length += sprintf(&Buffer[Length], "\
3302 %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);
3303 }
3304 Length += sprintf(&Buffer[Length], "\nExternal Host Adapter Resets: %d\n", HostAdapter->ExternalHostAdapterResets);
3305 Length += sprintf(&Buffer[Length], "Host Adapter Internal Errors: %d\n", HostAdapter->HostAdapterInternalErrors);
3306 if (Length >= BusLogic_MessageBufferSize)
3307 BusLogic_Error("Message Buffer length %d exceeds size %d\n", HostAdapter, Length, BusLogic_MessageBufferSize);
3308 if ((Length -= Offset) <= 0)
3309 return 0;
3310 if (Length >= BytesAvailable)
3311 Length = BytesAvailable;
3312 memcpy(ProcBuffer, HostAdapter->MessageBuffer + Offset, Length);
3313 *StartPointer = ProcBuffer;
3314 return Length;
3315}
3316
3317
3318/*
3319 BusLogic_Message prints Driver Messages.
3320*/
3321
3322static void BusLogic_Message(enum BusLogic_MessageLevel MessageLevel, char *Format, struct BusLogic_HostAdapter *HostAdapter, ...)
3323{
3324 static char Buffer[BusLogic_LineBufferSize];
Richard Knutsson2065e312007-02-05 16:39:01 -08003325 static bool BeginningOfLine = true;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003326 va_list Arguments;
3327 int Length = 0;
3328 va_start(Arguments, HostAdapter);
3329 Length = vsprintf(Buffer, Format, Arguments);
3330 va_end(Arguments);
3331 if (MessageLevel == BusLogic_AnnounceLevel) {
3332 static int AnnouncementLines = 0;
3333 strcpy(&HostAdapter->MessageBuffer[HostAdapter->MessageBufferLength], Buffer);
3334 HostAdapter->MessageBufferLength += Length;
3335 if (++AnnouncementLines <= 2)
3336 printk("%sscsi: %s", BusLogic_MessageLevelMap[MessageLevel], Buffer);
3337 } else if (MessageLevel == BusLogic_InfoLevel) {
3338 strcpy(&HostAdapter->MessageBuffer[HostAdapter->MessageBufferLength], Buffer);
3339 HostAdapter->MessageBufferLength += Length;
3340 if (BeginningOfLine) {
3341 if (Buffer[0] != '\n' || Length > 1)
3342 printk("%sscsi%d: %s", BusLogic_MessageLevelMap[MessageLevel], HostAdapter->HostNumber, Buffer);
3343 } else
3344 printk("%s", Buffer);
3345 } else {
3346 if (BeginningOfLine) {
3347 if (HostAdapter != NULL && HostAdapter->HostAdapterInitialized)
3348 printk("%sscsi%d: %s", BusLogic_MessageLevelMap[MessageLevel], HostAdapter->HostNumber, Buffer);
3349 else
3350 printk("%s%s", BusLogic_MessageLevelMap[MessageLevel], Buffer);
3351 } else
3352 printk("%s", Buffer);
3353 }
3354 BeginningOfLine = (Buffer[Length - 1] == '\n');
3355}
3356
3357
3358/*
3359 BusLogic_ParseKeyword parses an individual option keyword. It returns true
3360 and updates the pointer if the keyword is recognized and false otherwise.
3361*/
3362
Richard Knutsson2065e312007-02-05 16:39:01 -08003363static bool __init BusLogic_ParseKeyword(char **StringPointer, char *Keyword)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003364{
3365 char *Pointer = *StringPointer;
3366 while (*Keyword != '\0') {
3367 char StringChar = *Pointer++;
3368 char KeywordChar = *Keyword++;
3369 if (StringChar >= 'A' && StringChar <= 'Z')
3370 StringChar += 'a' - 'Z';
3371 if (KeywordChar >= 'A' && KeywordChar <= 'Z')
3372 KeywordChar += 'a' - 'Z';
3373 if (StringChar != KeywordChar)
3374 return false;
3375 }
3376 *StringPointer = Pointer;
3377 return true;
3378}
3379
3380
3381/*
3382 BusLogic_ParseDriverOptions handles processing of BusLogic Driver Options
3383 specifications.
3384
3385 BusLogic Driver Options may be specified either via the Linux Kernel Command
3386 Line or via the Loadable Kernel Module Installation Facility. Driver Options
3387 for multiple host adapters may be specified either by separating the option
3388 strings by a semicolon, or by specifying multiple "BusLogic=" strings on the
3389 command line. Individual option specifications for a single host adapter are
3390 separated by commas. The Probing and Debugging Options apply to all host
3391 adapters whereas the remaining options apply individually only to the
3392 selected host adapter.
3393
3394 The BusLogic Driver Probing Options are described in
3395 <file:Documentation/scsi/BusLogic.txt>.
3396*/
3397
3398static int __init BusLogic_ParseDriverOptions(char *OptionsString)
3399{
3400 while (true) {
3401 struct BusLogic_DriverOptions *DriverOptions = &BusLogic_DriverOptions[BusLogic_DriverOptionsCount++];
3402 int TargetID;
3403 memset(DriverOptions, 0, sizeof(struct BusLogic_DriverOptions));
3404 while (*OptionsString != '\0' && *OptionsString != ';') {
3405 /* Probing Options. */
3406 if (BusLogic_ParseKeyword(&OptionsString, "IO:")) {
3407 unsigned long IO_Address = simple_strtoul(OptionsString, &OptionsString, 0);
3408 BusLogic_ProbeOptions.LimitedProbeISA = true;
3409 switch (IO_Address) {
3410 case 0x330:
3411 BusLogic_ProbeOptions.Probe330 = true;
3412 break;
3413 case 0x334:
3414 BusLogic_ProbeOptions.Probe334 = true;
3415 break;
3416 case 0x230:
3417 BusLogic_ProbeOptions.Probe230 = true;
3418 break;
3419 case 0x234:
3420 BusLogic_ProbeOptions.Probe234 = true;
3421 break;
3422 case 0x130:
3423 BusLogic_ProbeOptions.Probe130 = true;
3424 break;
3425 case 0x134:
3426 BusLogic_ProbeOptions.Probe134 = true;
3427 break;
3428 default:
3429 BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid I/O Address 0x%X)\n", NULL, IO_Address);
3430 return 0;
3431 }
3432 } else if (BusLogic_ParseKeyword(&OptionsString, "NoProbeISA"))
3433 BusLogic_ProbeOptions.NoProbeISA = true;
3434 else if (BusLogic_ParseKeyword(&OptionsString, "NoProbePCI"))
3435 BusLogic_ProbeOptions.NoProbePCI = true;
3436 else if (BusLogic_ParseKeyword(&OptionsString, "NoProbe"))
3437 BusLogic_ProbeOptions.NoProbe = true;
3438 else if (BusLogic_ParseKeyword(&OptionsString, "NoSortPCI"))
3439 BusLogic_ProbeOptions.NoSortPCI = true;
3440 else if (BusLogic_ParseKeyword(&OptionsString, "MultiMasterFirst"))
3441 BusLogic_ProbeOptions.MultiMasterFirst = true;
3442 else if (BusLogic_ParseKeyword(&OptionsString, "FlashPointFirst"))
3443 BusLogic_ProbeOptions.FlashPointFirst = true;
3444 /* Tagged Queuing Options. */
3445 else if (BusLogic_ParseKeyword(&OptionsString, "QueueDepth:[") || BusLogic_ParseKeyword(&OptionsString, "QD:[")) {
3446 for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) {
3447 unsigned short QueueDepth = simple_strtoul(OptionsString, &OptionsString, 0);
3448 if (QueueDepth > BusLogic_MaxTaggedQueueDepth) {
3449 BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, QueueDepth);
3450 return 0;
3451 }
3452 DriverOptions->QueueDepth[TargetID] = QueueDepth;
3453 if (*OptionsString == ',')
3454 OptionsString++;
3455 else if (*OptionsString == ']')
3456 break;
3457 else {
3458 BusLogic_Error("BusLogic: Invalid Driver Options " "(',' or ']' expected at '%s')\n", NULL, OptionsString);
3459 return 0;
3460 }
3461 }
3462 if (*OptionsString != ']') {
3463 BusLogic_Error("BusLogic: Invalid Driver Options " "(']' expected at '%s')\n", NULL, OptionsString);
3464 return 0;
3465 } else
3466 OptionsString++;
3467 } else if (BusLogic_ParseKeyword(&OptionsString, "QueueDepth:") || BusLogic_ParseKeyword(&OptionsString, "QD:")) {
3468 unsigned short QueueDepth = simple_strtoul(OptionsString, &OptionsString, 0);
3469 if (QueueDepth == 0 || QueueDepth > BusLogic_MaxTaggedQueueDepth) {
3470 BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, QueueDepth);
3471 return 0;
3472 }
3473 DriverOptions->CommonQueueDepth = QueueDepth;
3474 for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++)
3475 DriverOptions->QueueDepth[TargetID] = QueueDepth;
3476 } else if (BusLogic_ParseKeyword(&OptionsString, "TaggedQueuing:") || BusLogic_ParseKeyword(&OptionsString, "TQ:")) {
3477 if (BusLogic_ParseKeyword(&OptionsString, "Default")) {
3478 DriverOptions->TaggedQueuingPermitted = 0x0000;
3479 DriverOptions->TaggedQueuingPermittedMask = 0x0000;
3480 } else if (BusLogic_ParseKeyword(&OptionsString, "Enable")) {
3481 DriverOptions->TaggedQueuingPermitted = 0xFFFF;
3482 DriverOptions->TaggedQueuingPermittedMask = 0xFFFF;
3483 } else if (BusLogic_ParseKeyword(&OptionsString, "Disable")) {
3484 DriverOptions->TaggedQueuingPermitted = 0x0000;
3485 DriverOptions->TaggedQueuingPermittedMask = 0xFFFF;
3486 } else {
3487 unsigned short TargetBit;
3488 for (TargetID = 0, TargetBit = 1; TargetID < BusLogic_MaxTargetDevices; TargetID++, TargetBit <<= 1)
3489 switch (*OptionsString++) {
3490 case 'Y':
3491 DriverOptions->TaggedQueuingPermitted |= TargetBit;
3492 DriverOptions->TaggedQueuingPermittedMask |= TargetBit;
3493 break;
3494 case 'N':
3495 DriverOptions->TaggedQueuingPermitted &= ~TargetBit;
3496 DriverOptions->TaggedQueuingPermittedMask |= TargetBit;
3497 break;
3498 case 'X':
3499 break;
3500 default:
3501 OptionsString--;
3502 TargetID = BusLogic_MaxTargetDevices;
3503 break;
3504 }
3505 }
3506 }
3507 /* Miscellaneous Options. */
3508 else if (BusLogic_ParseKeyword(&OptionsString, "BusSettleTime:") || BusLogic_ParseKeyword(&OptionsString, "BST:")) {
3509 unsigned short BusSettleTime = simple_strtoul(OptionsString, &OptionsString, 0);
3510 if (BusSettleTime > 5 * 60) {
3511 BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Bus Settle Time %d)\n", NULL, BusSettleTime);
3512 return 0;
3513 }
3514 DriverOptions->BusSettleTime = BusSettleTime;
3515 } else if (BusLogic_ParseKeyword(&OptionsString, "InhibitTargetInquiry"))
3516 DriverOptions->LocalOptions.InhibitTargetInquiry = true;
3517 /* Debugging Options. */
3518 else if (BusLogic_ParseKeyword(&OptionsString, "TraceProbe"))
3519 BusLogic_GlobalOptions.TraceProbe = true;
3520 else if (BusLogic_ParseKeyword(&OptionsString, "TraceHardwareReset"))
3521 BusLogic_GlobalOptions.TraceHardwareReset = true;
3522 else if (BusLogic_ParseKeyword(&OptionsString, "TraceConfiguration"))
3523 BusLogic_GlobalOptions.TraceConfiguration = true;
3524 else if (BusLogic_ParseKeyword(&OptionsString, "TraceErrors"))
3525 BusLogic_GlobalOptions.TraceErrors = true;
3526 else if (BusLogic_ParseKeyword(&OptionsString, "Debug")) {
3527 BusLogic_GlobalOptions.TraceProbe = true;
3528 BusLogic_GlobalOptions.TraceHardwareReset = true;
3529 BusLogic_GlobalOptions.TraceConfiguration = true;
3530 BusLogic_GlobalOptions.TraceErrors = true;
3531 }
3532 if (*OptionsString == ',')
3533 OptionsString++;
3534 else if (*OptionsString != ';' && *OptionsString != '\0') {
3535 BusLogic_Error("BusLogic: Unexpected Driver Option '%s' " "ignored\n", NULL, OptionsString);
3536 *OptionsString = '\0';
3537 }
3538 }
3539 if (!(BusLogic_DriverOptionsCount == 0 || BusLogic_ProbeInfoCount == 0 || BusLogic_DriverOptionsCount == BusLogic_ProbeInfoCount)) {
3540 BusLogic_Error("BusLogic: Invalid Driver Options " "(all or no I/O Addresses must be specified)\n", NULL);
3541 return 0;
3542 }
3543 /*
3544 Tagged Queuing is disabled when the Queue Depth is 1 since queuing
3545 multiple commands is not possible.
3546 */
3547 for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++)
3548 if (DriverOptions->QueueDepth[TargetID] == 1) {
3549 unsigned short TargetBit = 1 << TargetID;
3550 DriverOptions->TaggedQueuingPermitted &= ~TargetBit;
3551 DriverOptions->TaggedQueuingPermittedMask |= TargetBit;
3552 }
3553 if (*OptionsString == ';')
3554 OptionsString++;
3555 if (*OptionsString == '\0')
3556 return 0;
3557 }
3558 return 1;
3559}
3560
3561/*
3562 Get it all started
3563*/
3564
3565static struct scsi_host_template Bus_Logic_template = {
3566 .module = THIS_MODULE,
3567 .proc_name = "BusLogic",
3568 .proc_info = BusLogic_ProcDirectoryInfo,
3569 .name = "BusLogic",
3570 .info = BusLogic_DriverInfo,
3571 .queuecommand = BusLogic_QueueCommand,
3572 .slave_configure = BusLogic_SlaveConfigure,
3573 .bios_param = BusLogic_BIOSDiskParameters,
3574 .eh_host_reset_handler = BusLogic_host_reset,
3575#if 0
3576 .eh_abort_handler = BusLogic_AbortCommand,
3577#endif
3578 .unchecked_isa_dma = 1,
3579 .max_sectors = 128,
3580 .use_clustering = ENABLE_CLUSTERING,
3581};
3582
3583/*
3584 BusLogic_Setup handles processing of Kernel Command Line Arguments.
3585*/
3586
3587static int __init BusLogic_Setup(char *str)
3588{
3589 int ints[3];
3590
3591 (void) get_options(str, ARRAY_SIZE(ints), ints);
3592
3593 if (ints[0] != 0) {
3594 BusLogic_Error("BusLogic: Obsolete Command Line Entry " "Format Ignored\n", NULL);
3595 return 0;
3596 }
3597 if (str == NULL || *str == '\0')
3598 return 0;
3599 return BusLogic_ParseDriverOptions(str);
3600}
3601
3602/*
3603 * Exit function. Deletes all hosts associated with this driver.
3604 */
3605
3606static void __exit BusLogic_exit(void)
3607{
3608 struct BusLogic_HostAdapter *ha, *next;
3609
3610 list_for_each_entry_safe(ha, next, &BusLogic_host_list, host_list)
3611 BusLogic_ReleaseHostAdapter(ha);
3612}
3613
3614__setup("BusLogic=", BusLogic_Setup);
3615
Zachary Amsden1079a2d2007-04-10 08:53:08 -05003616#ifdef MODULE
Ben Collins745b5712006-10-18 08:36:57 -04003617static struct pci_device_id BusLogic_pci_tbl[] __devinitdata = {
3618 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
3619 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3620 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
3621 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3622 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
3623 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3624 { }
3625};
Zachary Amsden1079a2d2007-04-10 08:53:08 -05003626#endif
Ben Collins745b5712006-10-18 08:36:57 -04003627MODULE_DEVICE_TABLE(pci, BusLogic_pci_tbl);
3628
Linus Torvalds1da177e2005-04-16 15:20:36 -07003629module_init(BusLogic_init);
3630module_exit(BusLogic_exit);