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1da177e4 LT |
1 | |
2 | /* | |
3 | ||
4 | Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters | |
5 | ||
6 | Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com> | |
7 | ||
8 | This program is free software; you may redistribute and/or modify it under | |
9 | the terms of the GNU General Public License Version 2 as published by the | |
10 | Free Software Foundation. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY | |
14 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for complete details. | |
16 | ||
17 | The author respectfully requests that any modifications to this software be | |
18 | sent directly to him for evaluation and testing. | |
19 | ||
20 | Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose | |
21 | advice has been invaluable, to David Gentzel, for writing the original Linux | |
22 | BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site. | |
23 | ||
24 | Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB | |
25 | Manager available as freely redistributable source code. | |
26 | ||
27 | */ | |
28 | ||
29 | #define BusLogic_DriverVersion "2.1.16" | |
30 | #define BusLogic_DriverDate "18 July 2002" | |
31 | ||
32 | #include <linux/config.h> | |
33 | #include <linux/module.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/interrupt.h> | |
36 | #include <linux/types.h> | |
37 | #include <linux/blkdev.h> | |
38 | #include <linux/delay.h> | |
39 | #include <linux/ioport.h> | |
40 | #include <linux/mm.h> | |
41 | #include <linux/stat.h> | |
42 | #include <linux/pci.h> | |
43 | #include <linux/spinlock.h> | |
44 | #include <scsi/scsicam.h> | |
45 | ||
46 | #include <asm/dma.h> | |
47 | #include <asm/io.h> | |
48 | #include <asm/system.h> | |
49 | ||
50 | #include <scsi/scsi.h> | |
51 | #include <scsi/scsi_cmnd.h> | |
52 | #include <scsi/scsi_device.h> | |
53 | #include <scsi/scsi_host.h> | |
54 | #include <scsi/scsi_tcq.h> | |
55 | #include "BusLogic.h" | |
56 | #include "FlashPoint.c" | |
57 | ||
58 | #ifndef FAILURE | |
59 | #define FAILURE (-1) | |
60 | #endif | |
61 | ||
62 | static struct scsi_host_template Bus_Logic_template; | |
63 | ||
64 | /* | |
65 | BusLogic_DriverOptionsCount is a count of the number of BusLogic Driver | |
66 | Options specifications provided via the Linux Kernel Command Line or via | |
67 | the Loadable Kernel Module Installation Facility. | |
68 | */ | |
69 | ||
70 | static int BusLogic_DriverOptionsCount; | |
71 | ||
72 | ||
73 | /* | |
74 | BusLogic_DriverOptions is an array of Driver Options structures representing | |
75 | BusLogic Driver Options specifications provided via the Linux Kernel Command | |
76 | Line or via the Loadable Kernel Module Installation Facility. | |
77 | */ | |
78 | ||
79 | static struct BusLogic_DriverOptions BusLogic_DriverOptions[BusLogic_MaxHostAdapters]; | |
80 | ||
81 | ||
82 | /* | |
83 | BusLogic can be assigned a string by insmod. | |
84 | */ | |
85 | ||
86 | MODULE_LICENSE("GPL"); | |
87 | #ifdef MODULE | |
88 | static char *BusLogic; | |
89 | module_param(BusLogic, charp, 0); | |
90 | #endif | |
91 | ||
92 | ||
93 | /* | |
94 | BusLogic_ProbeOptions is a set of Probe Options to be applied across | |
95 | all BusLogic Host Adapters. | |
96 | */ | |
97 | ||
98 | static struct BusLogic_ProbeOptions BusLogic_ProbeOptions; | |
99 | ||
100 | ||
101 | /* | |
102 | BusLogic_GlobalOptions is a set of Global Options to be applied across | |
103 | all BusLogic Host Adapters. | |
104 | */ | |
105 | ||
106 | static struct BusLogic_GlobalOptions BusLogic_GlobalOptions; | |
107 | ||
108 | static LIST_HEAD(BusLogic_host_list); | |
109 | ||
110 | /* | |
111 | BusLogic_ProbeInfoCount is the number of entries in BusLogic_ProbeInfoList. | |
112 | */ | |
113 | ||
114 | static int BusLogic_ProbeInfoCount; | |
115 | ||
116 | ||
117 | /* | |
118 | BusLogic_ProbeInfoList is the list of I/O Addresses and Bus Probe Information | |
119 | to be checked for potential BusLogic Host Adapters. It is initialized by | |
120 | interrogating the PCI Configuration Space on PCI machines as well as from the | |
121 | list of standard BusLogic I/O Addresses. | |
122 | */ | |
123 | ||
124 | static struct BusLogic_ProbeInfo *BusLogic_ProbeInfoList; | |
125 | ||
126 | ||
127 | /* | |
128 | BusLogic_CommandFailureReason holds a string identifying the reason why a | |
129 | call to BusLogic_Command failed. It is only non-NULL when BusLogic_Command | |
130 | returns a failure code. | |
131 | */ | |
132 | ||
133 | static char *BusLogic_CommandFailureReason; | |
134 | ||
135 | /* | |
136 | BusLogic_AnnounceDriver announces the Driver Version and Date, Author's | |
137 | Name, Copyright Notice, and Electronic Mail Address. | |
138 | */ | |
139 | ||
140 | static void BusLogic_AnnounceDriver(struct BusLogic_HostAdapter *HostAdapter) | |
141 | { | |
142 | BusLogic_Announce("***** BusLogic SCSI Driver Version " BusLogic_DriverVersion " of " BusLogic_DriverDate " *****\n", HostAdapter); | |
143 | BusLogic_Announce("Copyright 1995-1998 by Leonard N. Zubkoff " "<lnz@dandelion.com>\n", HostAdapter); | |
144 | } | |
145 | ||
146 | ||
147 | /* | |
148 | BusLogic_DriverInfo returns the Host Adapter Name to identify this SCSI | |
149 | Driver and Host Adapter. | |
150 | */ | |
151 | ||
152 | static const char *BusLogic_DriverInfo(struct Scsi_Host *Host) | |
153 | { | |
154 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Host->hostdata; | |
155 | return HostAdapter->FullModelName; | |
156 | } | |
157 | ||
158 | /* | |
159 | BusLogic_InitializeCCBs initializes a group of Command Control Blocks (CCBs) | |
160 | for Host Adapter from the BlockSize bytes located at BlockPointer. The newly | |
161 | created CCBs are added to Host Adapter's free list. | |
162 | */ | |
163 | ||
164 | static void BusLogic_InitializeCCBs(struct BusLogic_HostAdapter *HostAdapter, void *BlockPointer, int BlockSize, dma_addr_t BlockPointerHandle) | |
165 | { | |
166 | struct BusLogic_CCB *CCB = (struct BusLogic_CCB *) BlockPointer; | |
167 | unsigned int offset = 0; | |
168 | memset(BlockPointer, 0, BlockSize); | |
169 | CCB->AllocationGroupHead = BlockPointerHandle; | |
170 | CCB->AllocationGroupSize = BlockSize; | |
171 | while ((BlockSize -= sizeof(struct BusLogic_CCB)) >= 0) { | |
172 | CCB->Status = BusLogic_CCB_Free; | |
173 | CCB->HostAdapter = HostAdapter; | |
174 | CCB->DMA_Handle = (u32) BlockPointerHandle + offset; | |
175 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) { | |
176 | CCB->CallbackFunction = BusLogic_QueueCompletedCCB; | |
177 | CCB->BaseAddress = HostAdapter->FlashPointInfo.BaseAddress; | |
178 | } | |
179 | CCB->Next = HostAdapter->Free_CCBs; | |
180 | CCB->NextAll = HostAdapter->All_CCBs; | |
181 | HostAdapter->Free_CCBs = CCB; | |
182 | HostAdapter->All_CCBs = CCB; | |
183 | HostAdapter->AllocatedCCBs++; | |
184 | CCB++; | |
185 | offset += sizeof(struct BusLogic_CCB); | |
186 | } | |
187 | } | |
188 | ||
189 | ||
190 | /* | |
191 | BusLogic_CreateInitialCCBs allocates the initial CCBs for Host Adapter. | |
192 | */ | |
193 | ||
194 | static boolean __init BusLogic_CreateInitialCCBs(struct BusLogic_HostAdapter *HostAdapter) | |
195 | { | |
196 | int BlockSize = BusLogic_CCB_AllocationGroupSize * sizeof(struct BusLogic_CCB); | |
197 | void *BlockPointer; | |
198 | dma_addr_t BlockPointerHandle; | |
199 | while (HostAdapter->AllocatedCCBs < HostAdapter->InitialCCBs) { | |
200 | BlockPointer = pci_alloc_consistent(HostAdapter->PCI_Device, BlockSize, &BlockPointerHandle); | |
201 | if (BlockPointer == NULL) { | |
202 | BusLogic_Error("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n", HostAdapter); | |
203 | return false; | |
204 | } | |
205 | BusLogic_InitializeCCBs(HostAdapter, BlockPointer, BlockSize, BlockPointerHandle); | |
206 | } | |
207 | return true; | |
208 | } | |
209 | ||
210 | ||
211 | /* | |
212 | BusLogic_DestroyCCBs deallocates the CCBs for Host Adapter. | |
213 | */ | |
214 | ||
215 | static void BusLogic_DestroyCCBs(struct BusLogic_HostAdapter *HostAdapter) | |
216 | { | |
217 | struct BusLogic_CCB *NextCCB = HostAdapter->All_CCBs, *CCB, *Last_CCB = NULL; | |
218 | HostAdapter->All_CCBs = NULL; | |
219 | HostAdapter->Free_CCBs = NULL; | |
220 | while ((CCB = NextCCB) != NULL) { | |
221 | NextCCB = CCB->NextAll; | |
222 | if (CCB->AllocationGroupHead) { | |
223 | if (Last_CCB) | |
224 | pci_free_consistent(HostAdapter->PCI_Device, Last_CCB->AllocationGroupSize, Last_CCB, Last_CCB->AllocationGroupHead); | |
225 | Last_CCB = CCB; | |
226 | } | |
227 | } | |
228 | if (Last_CCB) | |
229 | pci_free_consistent(HostAdapter->PCI_Device, Last_CCB->AllocationGroupSize, Last_CCB, Last_CCB->AllocationGroupHead); | |
230 | } | |
231 | ||
232 | ||
233 | /* | |
234 | BusLogic_CreateAdditionalCCBs allocates Additional CCBs for Host Adapter. If | |
235 | allocation fails and there are no remaining CCBs available, the Driver Queue | |
236 | Depth is decreased to a known safe value to avoid potential deadlocks when | |
237 | multiple host adapters share the same IRQ Channel. | |
238 | */ | |
239 | ||
240 | static void BusLogic_CreateAdditionalCCBs(struct BusLogic_HostAdapter *HostAdapter, int AdditionalCCBs, boolean SuccessMessageP) | |
241 | { | |
242 | int BlockSize = BusLogic_CCB_AllocationGroupSize * sizeof(struct BusLogic_CCB); | |
243 | int PreviouslyAllocated = HostAdapter->AllocatedCCBs; | |
244 | void *BlockPointer; | |
245 | dma_addr_t BlockPointerHandle; | |
246 | if (AdditionalCCBs <= 0) | |
247 | return; | |
248 | while (HostAdapter->AllocatedCCBs - PreviouslyAllocated < AdditionalCCBs) { | |
249 | BlockPointer = pci_alloc_consistent(HostAdapter->PCI_Device, BlockSize, &BlockPointerHandle); | |
250 | if (BlockPointer == NULL) | |
251 | break; | |
252 | BusLogic_InitializeCCBs(HostAdapter, BlockPointer, BlockSize, BlockPointerHandle); | |
253 | } | |
254 | if (HostAdapter->AllocatedCCBs > PreviouslyAllocated) { | |
255 | if (SuccessMessageP) | |
256 | BusLogic_Notice("Allocated %d additional CCBs (total now %d)\n", HostAdapter, HostAdapter->AllocatedCCBs - PreviouslyAllocated, HostAdapter->AllocatedCCBs); | |
257 | return; | |
258 | } | |
259 | BusLogic_Notice("Failed to allocate additional CCBs\n", HostAdapter); | |
260 | if (HostAdapter->DriverQueueDepth > HostAdapter->AllocatedCCBs - HostAdapter->TargetDeviceCount) { | |
261 | HostAdapter->DriverQueueDepth = HostAdapter->AllocatedCCBs - HostAdapter->TargetDeviceCount; | |
262 | HostAdapter->SCSI_Host->can_queue = HostAdapter->DriverQueueDepth; | |
263 | } | |
264 | } | |
265 | ||
266 | /* | |
267 | BusLogic_AllocateCCB allocates a CCB from Host Adapter's free list, | |
268 | allocating more memory from the Kernel if necessary. The Host Adapter's | |
269 | Lock should already have been acquired by the caller. | |
270 | */ | |
271 | ||
272 | static struct BusLogic_CCB *BusLogic_AllocateCCB(struct BusLogic_HostAdapter | |
273 | *HostAdapter) | |
274 | { | |
275 | static unsigned long SerialNumber = 0; | |
276 | struct BusLogic_CCB *CCB; | |
277 | CCB = HostAdapter->Free_CCBs; | |
278 | if (CCB != NULL) { | |
279 | CCB->SerialNumber = ++SerialNumber; | |
280 | HostAdapter->Free_CCBs = CCB->Next; | |
281 | CCB->Next = NULL; | |
282 | if (HostAdapter->Free_CCBs == NULL) | |
283 | BusLogic_CreateAdditionalCCBs(HostAdapter, HostAdapter->IncrementalCCBs, true); | |
284 | return CCB; | |
285 | } | |
286 | BusLogic_CreateAdditionalCCBs(HostAdapter, HostAdapter->IncrementalCCBs, true); | |
287 | CCB = HostAdapter->Free_CCBs; | |
288 | if (CCB == NULL) | |
289 | return NULL; | |
290 | CCB->SerialNumber = ++SerialNumber; | |
291 | HostAdapter->Free_CCBs = CCB->Next; | |
292 | CCB->Next = NULL; | |
293 | return CCB; | |
294 | } | |
295 | ||
296 | ||
297 | /* | |
298 | BusLogic_DeallocateCCB deallocates a CCB, returning it to the Host Adapter's | |
299 | free list. The Host Adapter's Lock should already have been acquired by the | |
300 | caller. | |
301 | */ | |
302 | ||
303 | static void BusLogic_DeallocateCCB(struct BusLogic_CCB *CCB) | |
304 | { | |
305 | struct BusLogic_HostAdapter *HostAdapter = CCB->HostAdapter; | |
306 | struct scsi_cmnd *cmd = CCB->Command; | |
307 | ||
308 | if (cmd->use_sg != 0) { | |
309 | pci_unmap_sg(HostAdapter->PCI_Device, | |
310 | (struct scatterlist *)cmd->request_buffer, | |
311 | cmd->use_sg, cmd->sc_data_direction); | |
312 | } else if (cmd->request_bufflen != 0) { | |
313 | pci_unmap_single(HostAdapter->PCI_Device, CCB->DataPointer, | |
314 | CCB->DataLength, cmd->sc_data_direction); | |
315 | } | |
316 | pci_unmap_single(HostAdapter->PCI_Device, CCB->SenseDataPointer, | |
317 | CCB->SenseDataLength, PCI_DMA_FROMDEVICE); | |
318 | ||
319 | CCB->Command = NULL; | |
320 | CCB->Status = BusLogic_CCB_Free; | |
321 | CCB->Next = HostAdapter->Free_CCBs; | |
322 | HostAdapter->Free_CCBs = CCB; | |
323 | } | |
324 | ||
325 | ||
326 | /* | |
327 | BusLogic_Command sends the command OperationCode to HostAdapter, optionally | |
328 | providing ParameterLength bytes of ParameterData and receiving at most | |
329 | ReplyLength bytes of ReplyData; any excess reply data is received but | |
330 | discarded. | |
331 | ||
332 | On success, this function returns the number of reply bytes read from | |
333 | the Host Adapter (including any discarded data); on failure, it returns | |
334 | -1 if the command was invalid, or -2 if a timeout occurred. | |
335 | ||
336 | BusLogic_Command is called exclusively during host adapter detection and | |
337 | initialization, so performance and latency are not critical, and exclusive | |
338 | access to the Host Adapter hardware is assumed. Once the host adapter and | |
339 | driver are initialized, the only Host Adapter command that is issued is the | |
340 | single byte Execute Mailbox Command operation code, which does not require | |
341 | waiting for the Host Adapter Ready bit to be set in the Status Register. | |
342 | */ | |
343 | ||
344 | static int BusLogic_Command(struct BusLogic_HostAdapter *HostAdapter, enum BusLogic_OperationCode OperationCode, void *ParameterData, int ParameterLength, void *ReplyData, int ReplyLength) | |
345 | { | |
346 | unsigned char *ParameterPointer = (unsigned char *) ParameterData; | |
347 | unsigned char *ReplyPointer = (unsigned char *) ReplyData; | |
348 | union BusLogic_StatusRegister StatusRegister; | |
349 | union BusLogic_InterruptRegister InterruptRegister; | |
350 | unsigned long ProcessorFlags = 0; | |
351 | int ReplyBytes = 0, Result; | |
352 | long TimeoutCounter; | |
353 | /* | |
354 | Clear out the Reply Data if provided. | |
355 | */ | |
356 | if (ReplyLength > 0) | |
357 | memset(ReplyData, 0, ReplyLength); | |
358 | /* | |
359 | If the IRQ Channel has not yet been acquired, then interrupts must be | |
360 | disabled while issuing host adapter commands since a Command Complete | |
361 | interrupt could occur if the IRQ Channel was previously enabled by another | |
362 | BusLogic Host Adapter or another driver sharing the same IRQ Channel. | |
363 | */ | |
364 | if (!HostAdapter->IRQ_ChannelAcquired) { | |
365 | local_irq_save(ProcessorFlags); | |
366 | local_irq_disable(); | |
367 | } | |
368 | /* | |
369 | Wait for the Host Adapter Ready bit to be set and the Command/Parameter | |
370 | Register Busy bit to be reset in the Status Register. | |
371 | */ | |
372 | TimeoutCounter = 10000; | |
373 | while (--TimeoutCounter >= 0) { | |
374 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); | |
375 | if (StatusRegister.sr.HostAdapterReady && !StatusRegister.sr.CommandParameterRegisterBusy) | |
376 | break; | |
377 | udelay(100); | |
378 | } | |
379 | if (TimeoutCounter < 0) { | |
380 | BusLogic_CommandFailureReason = "Timeout waiting for Host Adapter Ready"; | |
381 | Result = -2; | |
382 | goto Done; | |
383 | } | |
384 | /* | |
385 | Write the OperationCode to the Command/Parameter Register. | |
386 | */ | |
387 | HostAdapter->HostAdapterCommandCompleted = false; | |
388 | BusLogic_WriteCommandParameterRegister(HostAdapter, OperationCode); | |
389 | /* | |
390 | Write any additional Parameter Bytes. | |
391 | */ | |
392 | TimeoutCounter = 10000; | |
393 | while (ParameterLength > 0 && --TimeoutCounter >= 0) { | |
394 | /* | |
395 | Wait 100 microseconds to give the Host Adapter enough time to determine | |
396 | whether the last value written to the Command/Parameter Register was | |
397 | valid or not. If the Command Complete bit is set in the Interrupt | |
398 | Register, then the Command Invalid bit in the Status Register will be | |
399 | reset if the Operation Code or Parameter was valid and the command | |
400 | has completed, or set if the Operation Code or Parameter was invalid. | |
401 | If the Data In Register Ready bit is set in the Status Register, then | |
402 | the Operation Code was valid, and data is waiting to be read back | |
403 | from the Host Adapter. Otherwise, wait for the Command/Parameter | |
404 | Register Busy bit in the Status Register to be reset. | |
405 | */ | |
406 | udelay(100); | |
407 | InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter); | |
408 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); | |
409 | if (InterruptRegister.ir.CommandComplete) | |
410 | break; | |
411 | if (HostAdapter->HostAdapterCommandCompleted) | |
412 | break; | |
413 | if (StatusRegister.sr.DataInRegisterReady) | |
414 | break; | |
415 | if (StatusRegister.sr.CommandParameterRegisterBusy) | |
416 | continue; | |
417 | BusLogic_WriteCommandParameterRegister(HostAdapter, *ParameterPointer++); | |
418 | ParameterLength--; | |
419 | } | |
420 | if (TimeoutCounter < 0) { | |
421 | BusLogic_CommandFailureReason = "Timeout waiting for Parameter Acceptance"; | |
422 | Result = -2; | |
423 | goto Done; | |
424 | } | |
425 | /* | |
426 | The Modify I/O Address command does not cause a Command Complete Interrupt. | |
427 | */ | |
428 | if (OperationCode == BusLogic_ModifyIOAddress) { | |
429 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); | |
430 | if (StatusRegister.sr.CommandInvalid) { | |
431 | BusLogic_CommandFailureReason = "Modify I/O Address Invalid"; | |
432 | Result = -1; | |
433 | goto Done; | |
434 | } | |
435 | if (BusLogic_GlobalOptions.TraceConfiguration) | |
436 | BusLogic_Notice("BusLogic_Command(%02X) Status = %02X: " "(Modify I/O Address)\n", HostAdapter, OperationCode, StatusRegister.All); | |
437 | Result = 0; | |
438 | goto Done; | |
439 | } | |
440 | /* | |
441 | Select an appropriate timeout value for awaiting command completion. | |
442 | */ | |
443 | switch (OperationCode) { | |
444 | case BusLogic_InquireInstalledDevicesID0to7: | |
445 | case BusLogic_InquireInstalledDevicesID8to15: | |
446 | case BusLogic_InquireTargetDevices: | |
447 | /* Approximately 60 seconds. */ | |
448 | TimeoutCounter = 60 * 10000; | |
449 | break; | |
450 | default: | |
451 | /* Approximately 1 second. */ | |
452 | TimeoutCounter = 10000; | |
453 | break; | |
454 | } | |
455 | /* | |
456 | Receive any Reply Bytes, waiting for either the Command Complete bit to | |
457 | be set in the Interrupt Register, or for the Interrupt Handler to set the | |
458 | Host Adapter Command Completed bit in the Host Adapter structure. | |
459 | */ | |
460 | while (--TimeoutCounter >= 0) { | |
461 | InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter); | |
462 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); | |
463 | if (InterruptRegister.ir.CommandComplete) | |
464 | break; | |
465 | if (HostAdapter->HostAdapterCommandCompleted) | |
466 | break; | |
467 | if (StatusRegister.sr.DataInRegisterReady) { | |
468 | if (++ReplyBytes <= ReplyLength) | |
469 | *ReplyPointer++ = BusLogic_ReadDataInRegister(HostAdapter); | |
470 | else | |
471 | BusLogic_ReadDataInRegister(HostAdapter); | |
472 | } | |
473 | if (OperationCode == BusLogic_FetchHostAdapterLocalRAM && StatusRegister.sr.HostAdapterReady) | |
474 | break; | |
475 | udelay(100); | |
476 | } | |
477 | if (TimeoutCounter < 0) { | |
478 | BusLogic_CommandFailureReason = "Timeout waiting for Command Complete"; | |
479 | Result = -2; | |
480 | goto Done; | |
481 | } | |
482 | /* | |
483 | Clear any pending Command Complete Interrupt. | |
484 | */ | |
485 | BusLogic_InterruptReset(HostAdapter); | |
486 | /* | |
487 | Provide tracing information if requested. | |
488 | */ | |
489 | if (BusLogic_GlobalOptions.TraceConfiguration) { | |
490 | int i; | |
491 | BusLogic_Notice("BusLogic_Command(%02X) Status = %02X: %2d ==> %2d:", HostAdapter, OperationCode, StatusRegister.All, ReplyLength, ReplyBytes); | |
492 | if (ReplyLength > ReplyBytes) | |
493 | ReplyLength = ReplyBytes; | |
494 | for (i = 0; i < ReplyLength; i++) | |
495 | BusLogic_Notice(" %02X", HostAdapter, ((unsigned char *) ReplyData)[i]); | |
496 | BusLogic_Notice("\n", HostAdapter); | |
497 | } | |
498 | /* | |
499 | Process Command Invalid conditions. | |
500 | */ | |
501 | if (StatusRegister.sr.CommandInvalid) { | |
502 | /* | |
503 | Some early BusLogic Host Adapters may not recover properly from | |
504 | a Command Invalid condition, so if this appears to be the case, | |
505 | a Soft Reset is issued to the Host Adapter. Potentially invalid | |
506 | commands are never attempted after Mailbox Initialization is | |
507 | performed, so there should be no Host Adapter state lost by a | |
508 | Soft Reset in response to a Command Invalid condition. | |
509 | */ | |
510 | udelay(1000); | |
511 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); | |
512 | if (StatusRegister.sr.CommandInvalid || | |
513 | StatusRegister.sr.Reserved || | |
514 | StatusRegister.sr.DataInRegisterReady || | |
515 | StatusRegister.sr.CommandParameterRegisterBusy || !StatusRegister.sr.HostAdapterReady || !StatusRegister.sr.InitializationRequired || StatusRegister.sr.DiagnosticActive || StatusRegister.sr.DiagnosticFailure) { | |
516 | BusLogic_SoftReset(HostAdapter); | |
517 | udelay(1000); | |
518 | } | |
519 | BusLogic_CommandFailureReason = "Command Invalid"; | |
520 | Result = -1; | |
521 | goto Done; | |
522 | } | |
523 | /* | |
524 | Handle Excess Parameters Supplied conditions. | |
525 | */ | |
526 | if (ParameterLength > 0) { | |
527 | BusLogic_CommandFailureReason = "Excess Parameters Supplied"; | |
528 | Result = -1; | |
529 | goto Done; | |
530 | } | |
531 | /* | |
532 | Indicate the command completed successfully. | |
533 | */ | |
534 | BusLogic_CommandFailureReason = NULL; | |
535 | Result = ReplyBytes; | |
536 | /* | |
537 | Restore the interrupt status if necessary and return. | |
538 | */ | |
539 | Done: | |
540 | if (!HostAdapter->IRQ_ChannelAcquired) | |
541 | local_irq_restore(ProcessorFlags); | |
542 | return Result; | |
543 | } | |
544 | ||
545 | ||
546 | /* | |
547 | BusLogic_AppendProbeAddressISA appends a single ISA I/O Address to the list | |
548 | of I/O Address and Bus Probe Information to be checked for potential BusLogic | |
549 | Host Adapters. | |
550 | */ | |
551 | ||
552 | static void __init BusLogic_AppendProbeAddressISA(unsigned long IO_Address) | |
553 | { | |
554 | struct BusLogic_ProbeInfo *ProbeInfo; | |
555 | if (BusLogic_ProbeInfoCount >= BusLogic_MaxHostAdapters) | |
556 | return; | |
557 | ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++]; | |
558 | ProbeInfo->HostAdapterType = BusLogic_MultiMaster; | |
559 | ProbeInfo->HostAdapterBusType = BusLogic_ISA_Bus; | |
560 | ProbeInfo->IO_Address = IO_Address; | |
561 | ProbeInfo->PCI_Device = NULL; | |
562 | } | |
563 | ||
564 | ||
565 | /* | |
566 | BusLogic_InitializeProbeInfoListISA initializes the list of I/O Address and | |
567 | Bus Probe Information to be checked for potential BusLogic SCSI Host Adapters | |
568 | only from the list of standard BusLogic MultiMaster ISA I/O Addresses. | |
569 | */ | |
570 | ||
571 | static void __init BusLogic_InitializeProbeInfoListISA(struct BusLogic_HostAdapter | |
572 | *PrototypeHostAdapter) | |
573 | { | |
574 | /* | |
575 | If BusLogic Driver Options specifications requested that ISA Bus Probes | |
576 | be inhibited, do not proceed further. | |
577 | */ | |
578 | if (BusLogic_ProbeOptions.NoProbeISA) | |
579 | return; | |
580 | /* | |
581 | Append the list of standard BusLogic MultiMaster ISA I/O Addresses. | |
582 | */ | |
583 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe330 : check_region(0x330, BusLogic_MultiMasterAddressCount) == 0) | |
584 | BusLogic_AppendProbeAddressISA(0x330); | |
585 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe334 : check_region(0x334, BusLogic_MultiMasterAddressCount) == 0) | |
586 | BusLogic_AppendProbeAddressISA(0x334); | |
587 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe230 : check_region(0x230, BusLogic_MultiMasterAddressCount) == 0) | |
588 | BusLogic_AppendProbeAddressISA(0x230); | |
589 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe234 : check_region(0x234, BusLogic_MultiMasterAddressCount) == 0) | |
590 | BusLogic_AppendProbeAddressISA(0x234); | |
591 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe130 : check_region(0x130, BusLogic_MultiMasterAddressCount) == 0) | |
592 | BusLogic_AppendProbeAddressISA(0x130); | |
593 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe134 : check_region(0x134, BusLogic_MultiMasterAddressCount) == 0) | |
594 | BusLogic_AppendProbeAddressISA(0x134); | |
595 | } | |
596 | ||
597 | ||
598 | #ifdef CONFIG_PCI | |
599 | ||
600 | ||
601 | /* | |
602 | BusLogic_SortProbeInfo sorts a section of BusLogic_ProbeInfoList in order | |
603 | of increasing PCI Bus and Device Number. | |
604 | */ | |
605 | ||
606 | static void __init BusLogic_SortProbeInfo(struct BusLogic_ProbeInfo *ProbeInfoList, int ProbeInfoCount) | |
607 | { | |
608 | int LastInterchange = ProbeInfoCount - 1, Bound, j; | |
609 | while (LastInterchange > 0) { | |
610 | Bound = LastInterchange; | |
611 | LastInterchange = 0; | |
612 | for (j = 0; j < Bound; j++) { | |
613 | struct BusLogic_ProbeInfo *ProbeInfo1 = &ProbeInfoList[j]; | |
614 | struct BusLogic_ProbeInfo *ProbeInfo2 = &ProbeInfoList[j + 1]; | |
615 | if (ProbeInfo1->Bus > ProbeInfo2->Bus || (ProbeInfo1->Bus == ProbeInfo2->Bus && (ProbeInfo1->Device > ProbeInfo2->Device))) { | |
616 | struct BusLogic_ProbeInfo TempProbeInfo; | |
617 | memcpy(&TempProbeInfo, ProbeInfo1, sizeof(struct BusLogic_ProbeInfo)); | |
618 | memcpy(ProbeInfo1, ProbeInfo2, sizeof(struct BusLogic_ProbeInfo)); | |
619 | memcpy(ProbeInfo2, &TempProbeInfo, sizeof(struct BusLogic_ProbeInfo)); | |
620 | LastInterchange = j; | |
621 | } | |
622 | } | |
623 | } | |
624 | } | |
625 | ||
626 | ||
627 | /* | |
628 | BusLogic_InitializeMultiMasterProbeInfo initializes the list of I/O Address | |
629 | and Bus Probe Information to be checked for potential BusLogic MultiMaster | |
630 | SCSI Host Adapters by interrogating the PCI Configuration Space on PCI | |
631 | machines as well as from the list of standard BusLogic MultiMaster ISA | |
632 | I/O Addresses. It returns the number of PCI MultiMaster Host Adapters found. | |
633 | */ | |
634 | ||
635 | static int __init BusLogic_InitializeMultiMasterProbeInfo(struct BusLogic_HostAdapter | |
636 | *PrototypeHostAdapter) | |
637 | { | |
638 | struct BusLogic_ProbeInfo *PrimaryProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount]; | |
639 | int NonPrimaryPCIMultiMasterIndex = BusLogic_ProbeInfoCount + 1; | |
640 | int NonPrimaryPCIMultiMasterCount = 0, PCIMultiMasterCount = 0; | |
641 | boolean ForceBusDeviceScanningOrder = false; | |
642 | boolean ForceBusDeviceScanningOrderChecked = false; | |
643 | boolean StandardAddressSeen[6]; | |
644 | struct pci_dev *PCI_Device = NULL; | |
645 | int i; | |
646 | if (BusLogic_ProbeInfoCount >= BusLogic_MaxHostAdapters) | |
647 | return 0; | |
648 | BusLogic_ProbeInfoCount++; | |
649 | for (i = 0; i < 6; i++) | |
650 | StandardAddressSeen[i] = false; | |
651 | /* | |
652 | Iterate over the MultiMaster PCI Host Adapters. For each enumerated host | |
653 | adapter, determine whether its ISA Compatible I/O Port is enabled and if | |
654 | so, whether it is assigned the Primary I/O Address. A host adapter that is | |
655 | assigned the Primary I/O Address will always be the preferred boot device. | |
656 | The MultiMaster BIOS will first recognize a host adapter at the Primary I/O | |
657 | Address, then any other PCI host adapters, and finally any host adapters | |
658 | located at the remaining standard ISA I/O Addresses. When a PCI host | |
659 | adapter is found with its ISA Compatible I/O Port enabled, a command is | |
660 | issued to disable the ISA Compatible I/O Port, and it is noted that the | |
661 | particular standard ISA I/O Address need not be probed. | |
662 | */ | |
663 | PrimaryProbeInfo->IO_Address = 0; | |
664 | while ((PCI_Device = pci_find_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER, PCI_Device)) != NULL) { | |
665 | struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter; | |
666 | struct BusLogic_PCIHostAdapterInformation PCIHostAdapterInformation; | |
667 | enum BusLogic_ISACompatibleIOPort ModifyIOAddressRequest; | |
668 | unsigned char Bus; | |
669 | unsigned char Device; | |
670 | unsigned int IRQ_Channel; | |
671 | unsigned long BaseAddress0; | |
672 | unsigned long BaseAddress1; | |
673 | unsigned long IO_Address; | |
674 | unsigned long PCI_Address; | |
675 | ||
676 | if (pci_enable_device(PCI_Device)) | |
677 | continue; | |
678 | ||
679 | if (pci_set_dma_mask(PCI_Device, (u64) 0xffffffff)) | |
680 | continue; | |
681 | ||
682 | Bus = PCI_Device->bus->number; | |
683 | Device = PCI_Device->devfn >> 3; | |
684 | IRQ_Channel = PCI_Device->irq; | |
685 | IO_Address = BaseAddress0 = pci_resource_start(PCI_Device, 0); | |
686 | PCI_Address = BaseAddress1 = pci_resource_start(PCI_Device, 1); | |
687 | ||
688 | if (pci_resource_flags(PCI_Device, 0) & IORESOURCE_MEM) { | |
689 | BusLogic_Error("BusLogic: Base Address0 0x%X not I/O for " "MultiMaster Host Adapter\n", NULL, BaseAddress0); | |
690 | BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address); | |
691 | continue; | |
692 | } | |
693 | if (pci_resource_flags(PCI_Device, 1) & IORESOURCE_IO) { | |
694 | BusLogic_Error("BusLogic: Base Address1 0x%X not Memory for " "MultiMaster Host Adapter\n", NULL, BaseAddress1); | |
695 | BusLogic_Error("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, Bus, Device, PCI_Address); | |
696 | continue; | |
697 | } | |
698 | if (IRQ_Channel == 0) { | |
699 | BusLogic_Error("BusLogic: IRQ Channel %d invalid for " "MultiMaster Host Adapter\n", NULL, IRQ_Channel); | |
700 | BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address); | |
701 | continue; | |
702 | } | |
703 | if (BusLogic_GlobalOptions.TraceProbe) { | |
704 | BusLogic_Notice("BusLogic: PCI MultiMaster Host Adapter " "detected at\n", NULL); | |
705 | 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); | |
706 | } | |
707 | /* | |
708 | Issue the Inquire PCI Host Adapter Information command to determine | |
709 | the ISA Compatible I/O Port. If the ISA Compatible I/O Port is | |
710 | known and enabled, note that the particular Standard ISA I/O | |
711 | Address should not be probed. | |
712 | */ | |
713 | HostAdapter->IO_Address = IO_Address; | |
714 | BusLogic_InterruptReset(HostAdapter); | |
715 | if (BusLogic_Command(HostAdapter, BusLogic_InquirePCIHostAdapterInformation, NULL, 0, &PCIHostAdapterInformation, sizeof(PCIHostAdapterInformation)) | |
716 | == sizeof(PCIHostAdapterInformation)) { | |
717 | if (PCIHostAdapterInformation.ISACompatibleIOPort < 6) | |
718 | StandardAddressSeen[PCIHostAdapterInformation.ISACompatibleIOPort] = true; | |
719 | } else | |
720 | PCIHostAdapterInformation.ISACompatibleIOPort = BusLogic_IO_Disable; | |
721 | /* | |
722 | * Issue the Modify I/O Address command to disable the ISA Compatible | |
723 | * I/O Port. On PCI Host Adapters, the Modify I/O Address command | |
724 | * allows modification of the ISA compatible I/O Address that the Host | |
725 | * Adapter responds to; it does not affect the PCI compliant I/O Address | |
726 | * assigned at system initialization. | |
727 | */ | |
728 | ModifyIOAddressRequest = BusLogic_IO_Disable; | |
729 | BusLogic_Command(HostAdapter, BusLogic_ModifyIOAddress, &ModifyIOAddressRequest, sizeof(ModifyIOAddressRequest), NULL, 0); | |
730 | /* | |
731 | For the first MultiMaster Host Adapter enumerated, issue the Fetch | |
732 | Host Adapter Local RAM command to read byte 45 of the AutoSCSI area, | |
733 | for the setting of the "Use Bus And Device # For PCI Scanning Seq." | |
734 | option. Issue the Inquire Board ID command since this option is | |
735 | only valid for the BT-948/958/958D. | |
736 | */ | |
737 | if (!ForceBusDeviceScanningOrderChecked) { | |
738 | struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest; | |
739 | struct BusLogic_AutoSCSIByte45 AutoSCSIByte45; | |
740 | struct BusLogic_BoardID BoardID; | |
741 | FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_AutoSCSI_BaseOffset + 45; | |
742 | FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(AutoSCSIByte45); | |
743 | BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &AutoSCSIByte45, sizeof(AutoSCSIByte45)); | |
744 | BusLogic_Command(HostAdapter, BusLogic_InquireBoardID, NULL, 0, &BoardID, sizeof(BoardID)); | |
745 | if (BoardID.FirmwareVersion1stDigit == '5') | |
746 | ForceBusDeviceScanningOrder = AutoSCSIByte45.ForceBusDeviceScanningOrder; | |
747 | ForceBusDeviceScanningOrderChecked = true; | |
748 | } | |
749 | /* | |
750 | Determine whether this MultiMaster Host Adapter has its ISA | |
751 | Compatible I/O Port enabled and is assigned the Primary I/O Address. | |
752 | If it does, then it is the Primary MultiMaster Host Adapter and must | |
753 | be recognized first. If it does not, then it is added to the list | |
754 | for probing after any Primary MultiMaster Host Adapter is probed. | |
755 | */ | |
756 | if (PCIHostAdapterInformation.ISACompatibleIOPort == BusLogic_IO_330) { | |
757 | PrimaryProbeInfo->HostAdapterType = BusLogic_MultiMaster; | |
758 | PrimaryProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus; | |
759 | PrimaryProbeInfo->IO_Address = IO_Address; | |
760 | PrimaryProbeInfo->PCI_Address = PCI_Address; | |
761 | PrimaryProbeInfo->Bus = Bus; | |
762 | PrimaryProbeInfo->Device = Device; | |
763 | PrimaryProbeInfo->IRQ_Channel = IRQ_Channel; | |
764 | PrimaryProbeInfo->PCI_Device = PCI_Device; | |
765 | PCIMultiMasterCount++; | |
766 | } else if (BusLogic_ProbeInfoCount < BusLogic_MaxHostAdapters) { | |
767 | struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++]; | |
768 | ProbeInfo->HostAdapterType = BusLogic_MultiMaster; | |
769 | ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus; | |
770 | ProbeInfo->IO_Address = IO_Address; | |
771 | ProbeInfo->PCI_Address = PCI_Address; | |
772 | ProbeInfo->Bus = Bus; | |
773 | ProbeInfo->Device = Device; | |
774 | ProbeInfo->IRQ_Channel = IRQ_Channel; | |
775 | ProbeInfo->PCI_Device = PCI_Device; | |
776 | NonPrimaryPCIMultiMasterCount++; | |
777 | PCIMultiMasterCount++; | |
778 | } else | |
779 | BusLogic_Warning("BusLogic: Too many Host Adapters " "detected\n", NULL); | |
780 | } | |
781 | /* | |
782 | If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq." option is ON | |
783 | for the first enumerated MultiMaster Host Adapter, and if that host adapter | |
784 | is a BT-948/958/958D, then the MultiMaster BIOS will recognize MultiMaster | |
785 | Host Adapters in the order of increasing PCI Bus and Device Number. In | |
786 | that case, sort the probe information into the same order the BIOS uses. | |
787 | If this option is OFF, then the MultiMaster BIOS will recognize MultiMaster | |
788 | Host Adapters in the order they are enumerated by the PCI BIOS, and hence | |
789 | no sorting is necessary. | |
790 | */ | |
791 | if (ForceBusDeviceScanningOrder) | |
792 | BusLogic_SortProbeInfo(&BusLogic_ProbeInfoList[NonPrimaryPCIMultiMasterIndex], NonPrimaryPCIMultiMasterCount); | |
793 | /* | |
794 | If no PCI MultiMaster Host Adapter is assigned the Primary I/O Address, | |
795 | then the Primary I/O Address must be probed explicitly before any PCI | |
796 | host adapters are probed. | |
797 | */ | |
798 | if (!BusLogic_ProbeOptions.NoProbeISA) | |
799 | if (PrimaryProbeInfo->IO_Address == 0 && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe330 : check_region(0x330, BusLogic_MultiMasterAddressCount) == 0)) { | |
800 | PrimaryProbeInfo->HostAdapterType = BusLogic_MultiMaster; | |
801 | PrimaryProbeInfo->HostAdapterBusType = BusLogic_ISA_Bus; | |
802 | PrimaryProbeInfo->IO_Address = 0x330; | |
803 | } | |
804 | /* | |
805 | Append the list of standard BusLogic MultiMaster ISA I/O Addresses, | |
806 | omitting the Primary I/O Address which has already been handled. | |
807 | */ | |
808 | if (!BusLogic_ProbeOptions.NoProbeISA) { | |
809 | if (!StandardAddressSeen[1] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe334 : check_region(0x334, BusLogic_MultiMasterAddressCount) == 0)) | |
810 | BusLogic_AppendProbeAddressISA(0x334); | |
811 | if (!StandardAddressSeen[2] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe230 : check_region(0x230, BusLogic_MultiMasterAddressCount) == 0)) | |
812 | BusLogic_AppendProbeAddressISA(0x230); | |
813 | if (!StandardAddressSeen[3] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe234 : check_region(0x234, BusLogic_MultiMasterAddressCount) == 0)) | |
814 | BusLogic_AppendProbeAddressISA(0x234); | |
815 | if (!StandardAddressSeen[4] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe130 : check_region(0x130, BusLogic_MultiMasterAddressCount) == 0)) | |
816 | BusLogic_AppendProbeAddressISA(0x130); | |
817 | if (!StandardAddressSeen[5] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe134 : check_region(0x134, BusLogic_MultiMasterAddressCount) == 0)) | |
818 | BusLogic_AppendProbeAddressISA(0x134); | |
819 | } | |
820 | /* | |
821 | Iterate over the older non-compliant MultiMaster PCI Host Adapters, | |
822 | noting the PCI bus location and assigned IRQ Channel. | |
823 | */ | |
824 | PCI_Device = NULL; | |
825 | while ((PCI_Device = pci_find_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC, PCI_Device)) != NULL) { | |
826 | unsigned char Bus; | |
827 | unsigned char Device; | |
828 | unsigned int IRQ_Channel; | |
829 | unsigned long IO_Address; | |
830 | ||
831 | if (pci_enable_device(PCI_Device)) | |
832 | continue; | |
833 | ||
834 | if (pci_set_dma_mask(PCI_Device, (u64) 0xffffffff)) | |
835 | continue; | |
836 | ||
837 | Bus = PCI_Device->bus->number; | |
838 | Device = PCI_Device->devfn >> 3; | |
839 | IRQ_Channel = PCI_Device->irq; | |
840 | IO_Address = pci_resource_start(PCI_Device, 0); | |
841 | ||
842 | if (IO_Address == 0 || IRQ_Channel == 0) | |
843 | continue; | |
844 | for (i = 0; i < BusLogic_ProbeInfoCount; i++) { | |
845 | struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[i]; | |
846 | if (ProbeInfo->IO_Address == IO_Address && ProbeInfo->HostAdapterType == BusLogic_MultiMaster) { | |
847 | ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus; | |
848 | ProbeInfo->PCI_Address = 0; | |
849 | ProbeInfo->Bus = Bus; | |
850 | ProbeInfo->Device = Device; | |
851 | ProbeInfo->IRQ_Channel = IRQ_Channel; | |
852 | ProbeInfo->PCI_Device = PCI_Device; | |
853 | break; | |
854 | } | |
855 | } | |
856 | } | |
857 | return PCIMultiMasterCount; | |
858 | } | |
859 | ||
860 | ||
861 | /* | |
862 | BusLogic_InitializeFlashPointProbeInfo initializes the list of I/O Address | |
863 | and Bus Probe Information to be checked for potential BusLogic FlashPoint | |
864 | Host Adapters by interrogating the PCI Configuration Space. It returns the | |
865 | number of FlashPoint Host Adapters found. | |
866 | */ | |
867 | ||
868 | static int __init BusLogic_InitializeFlashPointProbeInfo(struct BusLogic_HostAdapter | |
869 | *PrototypeHostAdapter) | |
870 | { | |
871 | int FlashPointIndex = BusLogic_ProbeInfoCount, FlashPointCount = 0; | |
872 | struct pci_dev *PCI_Device = NULL; | |
873 | /* | |
874 | Interrogate PCI Configuration Space for any FlashPoint Host Adapters. | |
875 | */ | |
876 | while ((PCI_Device = pci_find_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT, PCI_Device)) != NULL) { | |
877 | unsigned char Bus; | |
878 | unsigned char Device; | |
879 | unsigned int IRQ_Channel; | |
880 | unsigned long BaseAddress0; | |
881 | unsigned long BaseAddress1; | |
882 | unsigned long IO_Address; | |
883 | unsigned long PCI_Address; | |
884 | ||
885 | if (pci_enable_device(PCI_Device)) | |
886 | continue; | |
887 | ||
888 | if (pci_set_dma_mask(PCI_Device, (u64) 0xffffffff)) | |
889 | continue; | |
890 | ||
891 | Bus = PCI_Device->bus->number; | |
892 | Device = PCI_Device->devfn >> 3; | |
893 | IRQ_Channel = PCI_Device->irq; | |
894 | IO_Address = BaseAddress0 = pci_resource_start(PCI_Device, 0); | |
895 | PCI_Address = BaseAddress1 = pci_resource_start(PCI_Device, 1); | |
896 | #ifndef CONFIG_SCSI_OMIT_FLASHPOINT | |
897 | if (pci_resource_flags(PCI_Device, 0) & IORESOURCE_MEM) { | |
898 | BusLogic_Error("BusLogic: Base Address0 0x%X not I/O for " "FlashPoint Host Adapter\n", NULL, BaseAddress0); | |
899 | BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address); | |
900 | continue; | |
901 | } | |
902 | if (pci_resource_flags(PCI_Device, 1) & IORESOURCE_IO) { | |
903 | BusLogic_Error("BusLogic: Base Address1 0x%X not Memory for " "FlashPoint Host Adapter\n", NULL, BaseAddress1); | |
904 | BusLogic_Error("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, Bus, Device, PCI_Address); | |
905 | continue; | |
906 | } | |
907 | if (IRQ_Channel == 0) { | |
908 | BusLogic_Error("BusLogic: IRQ Channel %d invalid for " "FlashPoint Host Adapter\n", NULL, IRQ_Channel); | |
909 | BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address); | |
910 | continue; | |
911 | } | |
912 | if (BusLogic_GlobalOptions.TraceProbe) { | |
913 | BusLogic_Notice("BusLogic: FlashPoint Host Adapter " "detected at\n", NULL); | |
914 | 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); | |
915 | } | |
916 | if (BusLogic_ProbeInfoCount < BusLogic_MaxHostAdapters) { | |
917 | struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++]; | |
918 | ProbeInfo->HostAdapterType = BusLogic_FlashPoint; | |
919 | ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus; | |
920 | ProbeInfo->IO_Address = IO_Address; | |
921 | ProbeInfo->PCI_Address = PCI_Address; | |
922 | ProbeInfo->Bus = Bus; | |
923 | ProbeInfo->Device = Device; | |
924 | ProbeInfo->IRQ_Channel = IRQ_Channel; | |
925 | ProbeInfo->PCI_Device = PCI_Device; | |
926 | FlashPointCount++; | |
927 | } else | |
928 | BusLogic_Warning("BusLogic: Too many Host Adapters " "detected\n", NULL); | |
929 | #else | |
930 | BusLogic_Error("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", NULL, Bus, Device); | |
931 | BusLogic_Error("BusLogic: I/O Address 0x%X PCI Address 0x%X, irq %d, " "but FlashPoint\n", NULL, IO_Address, PCI_Address, IRQ_Channel); | |
932 | BusLogic_Error("BusLogic: support was omitted in this kernel " "configuration.\n", NULL); | |
933 | #endif | |
934 | } | |
935 | /* | |
936 | The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of | |
937 | increasing PCI Bus and Device Number, so sort the probe information into | |
938 | the same order the BIOS uses. | |
939 | */ | |
940 | BusLogic_SortProbeInfo(&BusLogic_ProbeInfoList[FlashPointIndex], FlashPointCount); | |
941 | return FlashPointCount; | |
942 | } | |
943 | ||
944 | ||
945 | /* | |
946 | BusLogic_InitializeProbeInfoList initializes the list of I/O Address and Bus | |
947 | Probe Information to be checked for potential BusLogic SCSI Host Adapters by | |
948 | interrogating the PCI Configuration Space on PCI machines as well as from the | |
949 | list of standard BusLogic MultiMaster ISA I/O Addresses. By default, if both | |
950 | FlashPoint and PCI MultiMaster Host Adapters are present, this driver will | |
951 | probe for FlashPoint Host Adapters first unless the BIOS primary disk is | |
952 | controlled by the first PCI MultiMaster Host Adapter, in which case | |
953 | MultiMaster Host Adapters will be probed first. The BusLogic Driver Options | |
954 | specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force | |
955 | a particular probe order. | |
956 | */ | |
957 | ||
958 | static void __init BusLogic_InitializeProbeInfoList(struct BusLogic_HostAdapter | |
959 | *PrototypeHostAdapter) | |
960 | { | |
961 | /* | |
962 | If a PCI BIOS is present, interrogate it for MultiMaster and FlashPoint | |
963 | Host Adapters; otherwise, default to the standard ISA MultiMaster probe. | |
964 | */ | |
965 | if (!BusLogic_ProbeOptions.NoProbePCI) { | |
966 | if (BusLogic_ProbeOptions.MultiMasterFirst) { | |
967 | BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter); | |
968 | BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter); | |
969 | } else if (BusLogic_ProbeOptions.FlashPointFirst) { | |
970 | BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter); | |
971 | BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter); | |
972 | } else { | |
973 | int FlashPointCount = BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter); | |
974 | int PCIMultiMasterCount = BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter); | |
975 | if (FlashPointCount > 0 && PCIMultiMasterCount > 0) { | |
976 | struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[FlashPointCount]; | |
977 | struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter; | |
978 | struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest; | |
979 | struct BusLogic_BIOSDriveMapByte Drive0MapByte; | |
980 | while (ProbeInfo->HostAdapterBusType != BusLogic_PCI_Bus) | |
981 | ProbeInfo++; | |
982 | HostAdapter->IO_Address = ProbeInfo->IO_Address; | |
983 | FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_BIOS_BaseOffset + BusLogic_BIOS_DriveMapOffset + 0; | |
984 | FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(Drive0MapByte); | |
985 | BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &Drive0MapByte, sizeof(Drive0MapByte)); | |
986 | /* | |
987 | If the Map Byte for BIOS Drive 0 indicates that BIOS Drive 0 | |
988 | is controlled by this PCI MultiMaster Host Adapter, then | |
989 | reverse the probe order so that MultiMaster Host Adapters are | |
990 | probed before FlashPoint Host Adapters. | |
991 | */ | |
992 | if (Drive0MapByte.DiskGeometry != BusLogic_BIOS_Disk_Not_Installed) { | |
993 | struct BusLogic_ProbeInfo SavedProbeInfo[BusLogic_MaxHostAdapters]; | |
994 | int MultiMasterCount = BusLogic_ProbeInfoCount - FlashPointCount; | |
995 | memcpy(SavedProbeInfo, BusLogic_ProbeInfoList, BusLogic_ProbeInfoCount * sizeof(struct BusLogic_ProbeInfo)); | |
996 | memcpy(&BusLogic_ProbeInfoList[0], &SavedProbeInfo[FlashPointCount], MultiMasterCount * sizeof(struct BusLogic_ProbeInfo)); | |
997 | memcpy(&BusLogic_ProbeInfoList[MultiMasterCount], &SavedProbeInfo[0], FlashPointCount * sizeof(struct BusLogic_ProbeInfo)); | |
998 | } | |
999 | } | |
1000 | } | |
1001 | } else | |
1002 | BusLogic_InitializeProbeInfoListISA(PrototypeHostAdapter); | |
1003 | } | |
1004 | ||
1005 | ||
1006 | #endif /* CONFIG_PCI */ | |
1007 | ||
1008 | ||
1009 | /* | |
1010 | BusLogic_Failure prints a standardized error message, and then returns false. | |
1011 | */ | |
1012 | ||
1013 | static boolean BusLogic_Failure(struct BusLogic_HostAdapter *HostAdapter, char *ErrorMessage) | |
1014 | { | |
1015 | BusLogic_AnnounceDriver(HostAdapter); | |
1016 | if (HostAdapter->HostAdapterBusType == BusLogic_PCI_Bus) { | |
1017 | BusLogic_Error("While configuring BusLogic PCI Host Adapter at\n", HostAdapter); | |
1018 | 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); | |
1019 | } else | |
1020 | BusLogic_Error("While configuring BusLogic Host Adapter at " "I/O Address 0x%X:\n", HostAdapter, HostAdapter->IO_Address); | |
1021 | BusLogic_Error("%s FAILED - DETACHING\n", HostAdapter, ErrorMessage); | |
1022 | if (BusLogic_CommandFailureReason != NULL) | |
1023 | BusLogic_Error("ADDITIONAL FAILURE INFO - %s\n", HostAdapter, BusLogic_CommandFailureReason); | |
1024 | return false; | |
1025 | } | |
1026 | ||
1027 | ||
1028 | /* | |
1029 | BusLogic_ProbeHostAdapter probes for a BusLogic Host Adapter. | |
1030 | */ | |
1031 | ||
1032 | static boolean __init BusLogic_ProbeHostAdapter(struct BusLogic_HostAdapter *HostAdapter) | |
1033 | { | |
1034 | union BusLogic_StatusRegister StatusRegister; | |
1035 | union BusLogic_InterruptRegister InterruptRegister; | |
1036 | union BusLogic_GeometryRegister GeometryRegister; | |
1037 | /* | |
1038 | FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager. | |
1039 | */ | |
1040 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) { | |
1041 | struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo; | |
1042 | FlashPointInfo->BaseAddress = (u32) HostAdapter->IO_Address; | |
1043 | FlashPointInfo->IRQ_Channel = HostAdapter->IRQ_Channel; | |
1044 | FlashPointInfo->Present = false; | |
1045 | if (!(FlashPoint_ProbeHostAdapter(FlashPointInfo) == 0 && FlashPointInfo->Present)) { | |
1046 | BusLogic_Error("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", HostAdapter, HostAdapter->Bus, HostAdapter->Device); | |
1047 | BusLogic_Error("BusLogic: I/O Address 0x%X PCI Address 0x%X, " "but FlashPoint\n", HostAdapter, HostAdapter->IO_Address, HostAdapter->PCI_Address); | |
1048 | BusLogic_Error("BusLogic: Probe Function failed to validate it.\n", HostAdapter); | |
1049 | return false; | |
1050 | } | |
1051 | if (BusLogic_GlobalOptions.TraceProbe) | |
1052 | BusLogic_Notice("BusLogic_Probe(0x%X): FlashPoint Found\n", HostAdapter, HostAdapter->IO_Address); | |
1053 | /* | |
1054 | Indicate the Host Adapter Probe completed successfully. | |
1055 | */ | |
1056 | return true; | |
1057 | } | |
1058 | /* | |
1059 | Read the Status, Interrupt, and Geometry Registers to test if there are I/O | |
1060 | ports that respond, and to check the values to determine if they are from a | |
1061 | BusLogic Host Adapter. A nonexistent I/O port will return 0xFF, in which | |
1062 | case there is definitely no BusLogic Host Adapter at this base I/O Address. | |
1063 | The test here is a subset of that used by the BusLogic Host Adapter BIOS. | |
1064 | */ | |
1065 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); | |
1066 | InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter); | |
1067 | GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter); | |
1068 | if (BusLogic_GlobalOptions.TraceProbe) | |
1069 | 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); | |
1070 | if (StatusRegister.All == 0 || StatusRegister.sr.DiagnosticActive || StatusRegister.sr.CommandParameterRegisterBusy || StatusRegister.sr.Reserved || StatusRegister.sr.CommandInvalid || InterruptRegister.ir.Reserved != 0) | |
1071 | return false; | |
1072 | /* | |
1073 | Check the undocumented Geometry Register to test if there is an I/O port | |
1074 | that responded. Adaptec Host Adapters do not implement the Geometry | |
1075 | Register, so this test helps serve to avoid incorrectly recognizing an | |
1076 | Adaptec 1542A or 1542B as a BusLogic. Unfortunately, the Adaptec 1542C | |
1077 | series does respond to the Geometry Register I/O port, but it will be | |
1078 | rejected later when the Inquire Extended Setup Information command is | |
1079 | issued in BusLogic_CheckHostAdapter. The AMI FastDisk Host Adapter is a | |
1080 | BusLogic clone that implements the same interface as earlier BusLogic | |
1081 | Host Adapters, including the undocumented commands, and is therefore | |
1082 | supported by this driver. However, the AMI FastDisk always returns 0x00 | |
1083 | upon reading the Geometry Register, so the extended translation option | |
1084 | should always be left disabled on the AMI FastDisk. | |
1085 | */ | |
1086 | if (GeometryRegister.All == 0xFF) | |
1087 | return false; | |
1088 | /* | |
1089 | Indicate the Host Adapter Probe completed successfully. | |
1090 | */ | |
1091 | return true; | |
1092 | } | |
1093 | ||
1094 | ||
1095 | /* | |
1096 | BusLogic_HardwareResetHostAdapter issues a Hardware Reset to the Host Adapter | |
1097 | and waits for Host Adapter Diagnostics to complete. If HardReset is true, a | |
1098 | Hard Reset is performed which also initiates a SCSI Bus Reset. Otherwise, a | |
1099 | Soft Reset is performed which only resets the Host Adapter without forcing a | |
1100 | SCSI Bus Reset. | |
1101 | */ | |
1102 | ||
1103 | static boolean BusLogic_HardwareResetHostAdapter(struct BusLogic_HostAdapter | |
1104 | *HostAdapter, boolean HardReset) | |
1105 | { | |
1106 | union BusLogic_StatusRegister StatusRegister; | |
1107 | int TimeoutCounter; | |
1108 | /* | |
1109 | FlashPoint Host Adapters are Hard Reset by the FlashPoint SCCB Manager. | |
1110 | */ | |
1111 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) { | |
1112 | struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo; | |
1113 | FlashPointInfo->HostSoftReset = !HardReset; | |
1114 | FlashPointInfo->ReportDataUnderrun = true; | |
1115 | HostAdapter->CardHandle = FlashPoint_HardwareResetHostAdapter(FlashPointInfo); | |
1116 | if (HostAdapter->CardHandle == FlashPoint_BadCardHandle) | |
1117 | return false; | |
1118 | /* | |
1119 | Indicate the Host Adapter Hard Reset completed successfully. | |
1120 | */ | |
1121 | return true; | |
1122 | } | |
1123 | /* | |
1124 | Issue a Hard Reset or Soft Reset Command to the Host Adapter. The Host | |
1125 | Adapter should respond by setting Diagnostic Active in the Status Register. | |
1126 | */ | |
1127 | if (HardReset) | |
1128 | BusLogic_HardReset(HostAdapter); | |
1129 | else | |
1130 | BusLogic_SoftReset(HostAdapter); | |
1131 | /* | |
1132 | Wait until Diagnostic Active is set in the Status Register. | |
1133 | */ | |
1134 | TimeoutCounter = 5 * 10000; | |
1135 | while (--TimeoutCounter >= 0) { | |
1136 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); | |
1137 | if (StatusRegister.sr.DiagnosticActive) | |
1138 | break; | |
1139 | udelay(100); | |
1140 | } | |
1141 | if (BusLogic_GlobalOptions.TraceHardwareReset) | |
1142 | BusLogic_Notice("BusLogic_HardwareReset(0x%X): Diagnostic Active, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All); | |
1143 | if (TimeoutCounter < 0) | |
1144 | return false; | |
1145 | /* | |
1146 | Wait 100 microseconds to allow completion of any initial diagnostic | |
1147 | activity which might leave the contents of the Status Register | |
1148 | unpredictable. | |
1149 | */ | |
1150 | udelay(100); | |
1151 | /* | |
1152 | Wait until Diagnostic Active is reset in the Status Register. | |
1153 | */ | |
1154 | TimeoutCounter = 10 * 10000; | |
1155 | while (--TimeoutCounter >= 0) { | |
1156 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); | |
1157 | if (!StatusRegister.sr.DiagnosticActive) | |
1158 | break; | |
1159 | udelay(100); | |
1160 | } | |
1161 | if (BusLogic_GlobalOptions.TraceHardwareReset) | |
1162 | BusLogic_Notice("BusLogic_HardwareReset(0x%X): Diagnostic Completed, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All); | |
1163 | if (TimeoutCounter < 0) | |
1164 | return false; | |
1165 | /* | |
1166 | Wait until at least one of the Diagnostic Failure, Host Adapter Ready, | |
1167 | or Data In Register Ready bits is set in the Status Register. | |
1168 | */ | |
1169 | TimeoutCounter = 10000; | |
1170 | while (--TimeoutCounter >= 0) { | |
1171 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); | |
1172 | if (StatusRegister.sr.DiagnosticFailure || StatusRegister.sr.HostAdapterReady || StatusRegister.sr.DataInRegisterReady) | |
1173 | break; | |
1174 | udelay(100); | |
1175 | } | |
1176 | if (BusLogic_GlobalOptions.TraceHardwareReset) | |
1177 | BusLogic_Notice("BusLogic_HardwareReset(0x%X): Host Adapter Ready, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All); | |
1178 | if (TimeoutCounter < 0) | |
1179 | return false; | |
1180 | /* | |
1181 | If Diagnostic Failure is set or Host Adapter Ready is reset, then an | |
1182 | error occurred during the Host Adapter diagnostics. If Data In Register | |
1183 | Ready is set, then there is an Error Code available. | |
1184 | */ | |
1185 | if (StatusRegister.sr.DiagnosticFailure || !StatusRegister.sr.HostAdapterReady) { | |
1186 | BusLogic_CommandFailureReason = NULL; | |
1187 | BusLogic_Failure(HostAdapter, "HARD RESET DIAGNOSTICS"); | |
1188 | BusLogic_Error("HOST ADAPTER STATUS REGISTER = %02X\n", HostAdapter, StatusRegister.All); | |
1189 | if (StatusRegister.sr.DataInRegisterReady) { | |
1190 | unsigned char ErrorCode = BusLogic_ReadDataInRegister(HostAdapter); | |
1191 | BusLogic_Error("HOST ADAPTER ERROR CODE = %d\n", HostAdapter, ErrorCode); | |
1192 | } | |
1193 | return false; | |
1194 | } | |
1195 | /* | |
1196 | Indicate the Host Adapter Hard Reset completed successfully. | |
1197 | */ | |
1198 | return true; | |
1199 | } | |
1200 | ||
1201 | ||
1202 | /* | |
1203 | BusLogic_CheckHostAdapter checks to be sure this really is a BusLogic | |
1204 | Host Adapter. | |
1205 | */ | |
1206 | ||
1207 | static boolean __init BusLogic_CheckHostAdapter(struct BusLogic_HostAdapter *HostAdapter) | |
1208 | { | |
1209 | struct BusLogic_ExtendedSetupInformation ExtendedSetupInformation; | |
1210 | unsigned char RequestedReplyLength; | |
1211 | boolean Result = true; | |
1212 | /* | |
1213 | FlashPoint Host Adapters do not require this protection. | |
1214 | */ | |
1215 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) | |
1216 | return true; | |
1217 | /* | |
1218 | Issue the Inquire Extended Setup Information command. Only genuine | |
1219 | BusLogic Host Adapters and true clones support this command. Adaptec 1542C | |
1220 | series Host Adapters that respond to the Geometry Register I/O port will | |
1221 | fail this command. | |
1222 | */ | |
1223 | RequestedReplyLength = sizeof(ExtendedSetupInformation); | |
1224 | if (BusLogic_Command(HostAdapter, BusLogic_InquireExtendedSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &ExtendedSetupInformation, sizeof(ExtendedSetupInformation)) | |
1225 | != sizeof(ExtendedSetupInformation)) | |
1226 | Result = false; | |
1227 | /* | |
1228 | Provide tracing information if requested and return. | |
1229 | */ | |
1230 | if (BusLogic_GlobalOptions.TraceProbe) | |
1231 | BusLogic_Notice("BusLogic_Check(0x%X): MultiMaster %s\n", HostAdapter, HostAdapter->IO_Address, (Result ? "Found" : "Not Found")); | |
1232 | return Result; | |
1233 | } | |
1234 | ||
1235 | ||
1236 | /* | |
1237 | BusLogic_ReadHostAdapterConfiguration reads the Configuration Information | |
1238 | from Host Adapter and initializes the Host Adapter structure. | |
1239 | */ | |
1240 | ||
1241 | static boolean __init BusLogic_ReadHostAdapterConfiguration(struct BusLogic_HostAdapter | |
1242 | *HostAdapter) | |
1243 | { | |
1244 | struct BusLogic_BoardID BoardID; | |
1245 | struct BusLogic_Configuration Configuration; | |
1246 | struct BusLogic_SetupInformation SetupInformation; | |
1247 | struct BusLogic_ExtendedSetupInformation ExtendedSetupInformation; | |
1248 | unsigned char HostAdapterModelNumber[5]; | |
1249 | unsigned char FirmwareVersion3rdDigit; | |
1250 | unsigned char FirmwareVersionLetter; | |
1251 | struct BusLogic_PCIHostAdapterInformation PCIHostAdapterInformation; | |
1252 | struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest; | |
1253 | struct BusLogic_AutoSCSIData AutoSCSIData; | |
1254 | union BusLogic_GeometryRegister GeometryRegister; | |
1255 | unsigned char RequestedReplyLength; | |
1256 | unsigned char *TargetPointer, Character; | |
1257 | int TargetID, i; | |
1258 | /* | |
1259 | Configuration Information for FlashPoint Host Adapters is provided in the | |
1260 | FlashPoint_Info structure by the FlashPoint SCCB Manager's Probe Function. | |
1261 | Initialize fields in the Host Adapter structure from the FlashPoint_Info | |
1262 | structure. | |
1263 | */ | |
1264 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) { | |
1265 | struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo; | |
1266 | TargetPointer = HostAdapter->ModelName; | |
1267 | *TargetPointer++ = 'B'; | |
1268 | *TargetPointer++ = 'T'; | |
1269 | *TargetPointer++ = '-'; | |
1270 | for (i = 0; i < sizeof(FlashPointInfo->ModelNumber); i++) | |
1271 | *TargetPointer++ = FlashPointInfo->ModelNumber[i]; | |
1272 | *TargetPointer++ = '\0'; | |
1273 | strcpy(HostAdapter->FirmwareVersion, FlashPoint_FirmwareVersion); | |
1274 | HostAdapter->SCSI_ID = FlashPointInfo->SCSI_ID; | |
1275 | HostAdapter->ExtendedTranslationEnabled = FlashPointInfo->ExtendedTranslationEnabled; | |
1276 | HostAdapter->ParityCheckingEnabled = FlashPointInfo->ParityCheckingEnabled; | |
1277 | HostAdapter->BusResetEnabled = !FlashPointInfo->HostSoftReset; | |
1278 | HostAdapter->LevelSensitiveInterrupt = true; | |
1279 | HostAdapter->HostWideSCSI = FlashPointInfo->HostWideSCSI; | |
1280 | HostAdapter->HostDifferentialSCSI = false; | |
1281 | HostAdapter->HostSupportsSCAM = true; | |
1282 | HostAdapter->HostUltraSCSI = true; | |
1283 | HostAdapter->ExtendedLUNSupport = true; | |
1284 | HostAdapter->TerminationInfoValid = true; | |
1285 | HostAdapter->LowByteTerminated = FlashPointInfo->LowByteTerminated; | |
1286 | HostAdapter->HighByteTerminated = FlashPointInfo->HighByteTerminated; | |
1287 | HostAdapter->SCAM_Enabled = FlashPointInfo->SCAM_Enabled; | |
1288 | HostAdapter->SCAM_Level2 = FlashPointInfo->SCAM_Level2; | |
1289 | HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit; | |
1290 | HostAdapter->MaxTargetDevices = (HostAdapter->HostWideSCSI ? 16 : 8); | |
1291 | HostAdapter->MaxLogicalUnits = 32; | |
1292 | HostAdapter->InitialCCBs = 4 * BusLogic_CCB_AllocationGroupSize; | |
1293 | HostAdapter->IncrementalCCBs = BusLogic_CCB_AllocationGroupSize; | |
1294 | HostAdapter->DriverQueueDepth = 255; | |
1295 | HostAdapter->HostAdapterQueueDepth = HostAdapter->DriverQueueDepth; | |
1296 | HostAdapter->SynchronousPermitted = FlashPointInfo->SynchronousPermitted; | |
1297 | HostAdapter->FastPermitted = FlashPointInfo->FastPermitted; | |
1298 | HostAdapter->UltraPermitted = FlashPointInfo->UltraPermitted; | |
1299 | HostAdapter->WidePermitted = FlashPointInfo->WidePermitted; | |
1300 | HostAdapter->DisconnectPermitted = FlashPointInfo->DisconnectPermitted; | |
1301 | HostAdapter->TaggedQueuingPermitted = 0xFFFF; | |
1302 | goto Common; | |
1303 | } | |
1304 | /* | |
1305 | Issue the Inquire Board ID command. | |
1306 | */ | |
1307 | if (BusLogic_Command(HostAdapter, BusLogic_InquireBoardID, NULL, 0, &BoardID, sizeof(BoardID)) != sizeof(BoardID)) | |
1308 | return BusLogic_Failure(HostAdapter, "INQUIRE BOARD ID"); | |
1309 | /* | |
1310 | Issue the Inquire Configuration command. | |
1311 | */ | |
1312 | if (BusLogic_Command(HostAdapter, BusLogic_InquireConfiguration, NULL, 0, &Configuration, sizeof(Configuration)) | |
1313 | != sizeof(Configuration)) | |
1314 | return BusLogic_Failure(HostAdapter, "INQUIRE CONFIGURATION"); | |
1315 | /* | |
1316 | Issue the Inquire Setup Information command. | |
1317 | */ | |
1318 | RequestedReplyLength = sizeof(SetupInformation); | |
1319 | if (BusLogic_Command(HostAdapter, BusLogic_InquireSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &SetupInformation, sizeof(SetupInformation)) | |
1320 | != sizeof(SetupInformation)) | |
1321 | return BusLogic_Failure(HostAdapter, "INQUIRE SETUP INFORMATION"); | |
1322 | /* | |
1323 | Issue the Inquire Extended Setup Information command. | |
1324 | */ | |
1325 | RequestedReplyLength = sizeof(ExtendedSetupInformation); | |
1326 | if (BusLogic_Command(HostAdapter, BusLogic_InquireExtendedSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &ExtendedSetupInformation, sizeof(ExtendedSetupInformation)) | |
1327 | != sizeof(ExtendedSetupInformation)) | |
1328 | return BusLogic_Failure(HostAdapter, "INQUIRE EXTENDED SETUP INFORMATION"); | |
1329 | /* | |
1330 | Issue the Inquire Firmware Version 3rd Digit command. | |
1331 | */ | |
1332 | FirmwareVersion3rdDigit = '\0'; | |
1333 | if (BoardID.FirmwareVersion1stDigit > '0') | |
1334 | if (BusLogic_Command(HostAdapter, BusLogic_InquireFirmwareVersion3rdDigit, NULL, 0, &FirmwareVersion3rdDigit, sizeof(FirmwareVersion3rdDigit)) | |
1335 | != sizeof(FirmwareVersion3rdDigit)) | |
1336 | return BusLogic_Failure(HostAdapter, "INQUIRE FIRMWARE 3RD DIGIT"); | |
1337 | /* | |
1338 | Issue the Inquire Host Adapter Model Number command. | |
1339 | */ | |
1340 | if (ExtendedSetupInformation.BusType == 'A' && BoardID.FirmwareVersion1stDigit == '2') | |
1341 | /* BusLogic BT-542B ISA 2.xx */ | |
1342 | strcpy(HostAdapterModelNumber, "542B"); | |
1343 | else if (ExtendedSetupInformation.BusType == 'E' && BoardID.FirmwareVersion1stDigit == '2' && (BoardID.FirmwareVersion2ndDigit <= '1' || (BoardID.FirmwareVersion2ndDigit == '2' && FirmwareVersion3rdDigit == '0'))) | |
1344 | /* BusLogic BT-742A EISA 2.1x or 2.20 */ | |
1345 | strcpy(HostAdapterModelNumber, "742A"); | |
1346 | else if (ExtendedSetupInformation.BusType == 'E' && BoardID.FirmwareVersion1stDigit == '0') | |
1347 | /* AMI FastDisk EISA Series 441 0.x */ | |
1348 | strcpy(HostAdapterModelNumber, "747A"); | |
1349 | else { | |
1350 | RequestedReplyLength = sizeof(HostAdapterModelNumber); | |
1351 | if (BusLogic_Command(HostAdapter, BusLogic_InquireHostAdapterModelNumber, &RequestedReplyLength, sizeof(RequestedReplyLength), &HostAdapterModelNumber, sizeof(HostAdapterModelNumber)) | |
1352 | != sizeof(HostAdapterModelNumber)) | |
1353 | return BusLogic_Failure(HostAdapter, "INQUIRE HOST ADAPTER MODEL NUMBER"); | |
1354 | } | |
1355 | /* | |
1356 | BusLogic MultiMaster Host Adapters can be identified by their model number | |
1357 | and the major version number of their firmware as follows: | |
1358 | ||
1359 | 5.xx BusLogic "W" Series Host Adapters: | |
1360 | BT-948/958/958D | |
1361 | 4.xx BusLogic "C" Series Host Adapters: | |
1362 | BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF | |
1363 | 3.xx BusLogic "S" Series Host Adapters: | |
1364 | BT-747S/747D/757S/757D/445S/545S/542D | |
1365 | BT-542B/742A (revision H) | |
1366 | 2.xx BusLogic "A" Series Host Adapters: | |
1367 | BT-542B/742A (revision G and below) | |
1368 | 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter | |
1369 | */ | |
1370 | /* | |
1371 | Save the Model Name and Host Adapter Name in the Host Adapter structure. | |
1372 | */ | |
1373 | TargetPointer = HostAdapter->ModelName; | |
1374 | *TargetPointer++ = 'B'; | |
1375 | *TargetPointer++ = 'T'; | |
1376 | *TargetPointer++ = '-'; | |
1377 | for (i = 0; i < sizeof(HostAdapterModelNumber); i++) { | |
1378 | Character = HostAdapterModelNumber[i]; | |
1379 | if (Character == ' ' || Character == '\0') | |
1380 | break; | |
1381 | *TargetPointer++ = Character; | |
1382 | } | |
1383 | *TargetPointer++ = '\0'; | |
1384 | /* | |
1385 | Save the Firmware Version in the Host Adapter structure. | |
1386 | */ | |
1387 | TargetPointer = HostAdapter->FirmwareVersion; | |
1388 | *TargetPointer++ = BoardID.FirmwareVersion1stDigit; | |
1389 | *TargetPointer++ = '.'; | |
1390 | *TargetPointer++ = BoardID.FirmwareVersion2ndDigit; | |
1391 | if (FirmwareVersion3rdDigit != ' ' && FirmwareVersion3rdDigit != '\0') | |
1392 | *TargetPointer++ = FirmwareVersion3rdDigit; | |
1393 | *TargetPointer = '\0'; | |
1394 | /* | |
1395 | Issue the Inquire Firmware Version Letter command. | |
1396 | */ | |
1397 | if (strcmp(HostAdapter->FirmwareVersion, "3.3") >= 0) { | |
1398 | if (BusLogic_Command(HostAdapter, BusLogic_InquireFirmwareVersionLetter, NULL, 0, &FirmwareVersionLetter, sizeof(FirmwareVersionLetter)) | |
1399 | != sizeof(FirmwareVersionLetter)) | |
1400 | return BusLogic_Failure(HostAdapter, "INQUIRE FIRMWARE VERSION LETTER"); | |
1401 | if (FirmwareVersionLetter != ' ' && FirmwareVersionLetter != '\0') | |
1402 | *TargetPointer++ = FirmwareVersionLetter; | |
1403 | *TargetPointer = '\0'; | |
1404 | } | |
1405 | /* | |
1406 | Save the Host Adapter SCSI ID in the Host Adapter structure. | |
1407 | */ | |
1408 | HostAdapter->SCSI_ID = Configuration.HostAdapterID; | |
1409 | /* | |
1410 | Determine the Bus Type and save it in the Host Adapter structure, determine | |
1411 | and save the IRQ Channel if necessary, and determine and save the DMA | |
1412 | Channel for ISA Host Adapters. | |
1413 | */ | |
1414 | HostAdapter->HostAdapterBusType = BusLogic_HostAdapterBusTypes[HostAdapter->ModelName[3] - '4']; | |
1415 | if (HostAdapter->IRQ_Channel == 0) { | |
1416 | if (Configuration.IRQ_Channel9) | |
1417 | HostAdapter->IRQ_Channel = 9; | |
1418 | else if (Configuration.IRQ_Channel10) | |
1419 | HostAdapter->IRQ_Channel = 10; | |
1420 | else if (Configuration.IRQ_Channel11) | |
1421 | HostAdapter->IRQ_Channel = 11; | |
1422 | else if (Configuration.IRQ_Channel12) | |
1423 | HostAdapter->IRQ_Channel = 12; | |
1424 | else if (Configuration.IRQ_Channel14) | |
1425 | HostAdapter->IRQ_Channel = 14; | |
1426 | else if (Configuration.IRQ_Channel15) | |
1427 | HostAdapter->IRQ_Channel = 15; | |
1428 | } | |
1429 | if (HostAdapter->HostAdapterBusType == BusLogic_ISA_Bus) { | |
1430 | if (Configuration.DMA_Channel5) | |
1431 | HostAdapter->DMA_Channel = 5; | |
1432 | else if (Configuration.DMA_Channel6) | |
1433 | HostAdapter->DMA_Channel = 6; | |
1434 | else if (Configuration.DMA_Channel7) | |
1435 | HostAdapter->DMA_Channel = 7; | |
1436 | } | |
1437 | /* | |
1438 | Determine whether Extended Translation is enabled and save it in | |
1439 | the Host Adapter structure. | |
1440 | */ | |
1441 | GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter); | |
1442 | HostAdapter->ExtendedTranslationEnabled = GeometryRegister.gr.ExtendedTranslationEnabled; | |
1443 | /* | |
1444 | Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide | |
1445 | SCSI flag, Differential SCSI flag, SCAM Supported flag, and | |
1446 | Ultra SCSI flag in the Host Adapter structure. | |
1447 | */ | |
1448 | HostAdapter->HostAdapterScatterGatherLimit = ExtendedSetupInformation.ScatterGatherLimit; | |
1449 | HostAdapter->DriverScatterGatherLimit = HostAdapter->HostAdapterScatterGatherLimit; | |
1450 | if (HostAdapter->HostAdapterScatterGatherLimit > BusLogic_ScatterGatherLimit) | |
1451 | HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit; | |
1452 | if (ExtendedSetupInformation.Misc.LevelSensitiveInterrupt) | |
1453 | HostAdapter->LevelSensitiveInterrupt = true; | |
1454 | HostAdapter->HostWideSCSI = ExtendedSetupInformation.HostWideSCSI; | |
1455 | HostAdapter->HostDifferentialSCSI = ExtendedSetupInformation.HostDifferentialSCSI; | |
1456 | HostAdapter->HostSupportsSCAM = ExtendedSetupInformation.HostSupportsSCAM; | |
1457 | HostAdapter->HostUltraSCSI = ExtendedSetupInformation.HostUltraSCSI; | |
1458 | /* | |
1459 | Determine whether Extended LUN Format CCBs are supported and save the | |
1460 | information in the Host Adapter structure. | |
1461 | */ | |
1462 | if (HostAdapter->FirmwareVersion[0] == '5' || (HostAdapter->FirmwareVersion[0] == '4' && HostAdapter->HostWideSCSI)) | |
1463 | HostAdapter->ExtendedLUNSupport = true; | |
1464 | /* | |
1465 | Issue the Inquire PCI Host Adapter Information command to read the | |
1466 | Termination Information from "W" series MultiMaster Host Adapters. | |
1467 | */ | |
1468 | if (HostAdapter->FirmwareVersion[0] == '5') { | |
1469 | if (BusLogic_Command(HostAdapter, BusLogic_InquirePCIHostAdapterInformation, NULL, 0, &PCIHostAdapterInformation, sizeof(PCIHostAdapterInformation)) | |
1470 | != sizeof(PCIHostAdapterInformation)) | |
1471 | return BusLogic_Failure(HostAdapter, "INQUIRE PCI HOST ADAPTER INFORMATION"); | |
1472 | /* | |
1473 | Save the Termination Information in the Host Adapter structure. | |
1474 | */ | |
1475 | if (PCIHostAdapterInformation.GenericInfoValid) { | |
1476 | HostAdapter->TerminationInfoValid = true; | |
1477 | HostAdapter->LowByteTerminated = PCIHostAdapterInformation.LowByteTerminated; | |
1478 | HostAdapter->HighByteTerminated = PCIHostAdapterInformation.HighByteTerminated; | |
1479 | } | |
1480 | } | |
1481 | /* | |
1482 | Issue the Fetch Host Adapter Local RAM command to read the AutoSCSI data | |
1483 | from "W" and "C" series MultiMaster Host Adapters. | |
1484 | */ | |
1485 | if (HostAdapter->FirmwareVersion[0] >= '4') { | |
1486 | FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_AutoSCSI_BaseOffset; | |
1487 | FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(AutoSCSIData); | |
1488 | if (BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &AutoSCSIData, sizeof(AutoSCSIData)) | |
1489 | != sizeof(AutoSCSIData)) | |
1490 | return BusLogic_Failure(HostAdapter, "FETCH HOST ADAPTER LOCAL RAM"); | |
1491 | /* | |
1492 | Save the Parity Checking Enabled, Bus Reset Enabled, and Termination | |
1493 | Information in the Host Adapter structure. | |
1494 | */ | |
1495 | HostAdapter->ParityCheckingEnabled = AutoSCSIData.ParityCheckingEnabled; | |
1496 | HostAdapter->BusResetEnabled = AutoSCSIData.BusResetEnabled; | |
1497 | if (HostAdapter->FirmwareVersion[0] == '4') { | |
1498 | HostAdapter->TerminationInfoValid = true; | |
1499 | HostAdapter->LowByteTerminated = AutoSCSIData.LowByteTerminated; | |
1500 | HostAdapter->HighByteTerminated = AutoSCSIData.HighByteTerminated; | |
1501 | } | |
1502 | /* | |
1503 | Save the Wide Permitted, Fast Permitted, Synchronous Permitted, | |
1504 | Disconnect Permitted, Ultra Permitted, and SCAM Information in the | |
1505 | Host Adapter structure. | |
1506 | */ | |
1507 | HostAdapter->WidePermitted = AutoSCSIData.WidePermitted; | |
1508 | HostAdapter->FastPermitted = AutoSCSIData.FastPermitted; | |
1509 | HostAdapter->SynchronousPermitted = AutoSCSIData.SynchronousPermitted; | |
1510 | HostAdapter->DisconnectPermitted = AutoSCSIData.DisconnectPermitted; | |
1511 | if (HostAdapter->HostUltraSCSI) | |
1512 | HostAdapter->UltraPermitted = AutoSCSIData.UltraPermitted; | |
1513 | if (HostAdapter->HostSupportsSCAM) { | |
1514 | HostAdapter->SCAM_Enabled = AutoSCSIData.SCAM_Enabled; | |
1515 | HostAdapter->SCAM_Level2 = AutoSCSIData.SCAM_Level2; | |
1516 | } | |
1517 | } | |
1518 | /* | |
1519 | Initialize fields in the Host Adapter structure for "S" and "A" series | |
1520 | MultiMaster Host Adapters. | |
1521 | */ | |
1522 | if (HostAdapter->FirmwareVersion[0] < '4') { | |
1523 | if (SetupInformation.SynchronousInitiationEnabled) { | |
1524 | HostAdapter->SynchronousPermitted = 0xFF; | |
1525 | if (HostAdapter->HostAdapterBusType == BusLogic_EISA_Bus) { | |
1526 | if (ExtendedSetupInformation.Misc.FastOnEISA) | |
1527 | HostAdapter->FastPermitted = 0xFF; | |
1528 | if (strcmp(HostAdapter->ModelName, "BT-757") == 0) | |
1529 | HostAdapter->WidePermitted = 0xFF; | |
1530 | } | |
1531 | } | |
1532 | HostAdapter->DisconnectPermitted = 0xFF; | |
1533 | HostAdapter->ParityCheckingEnabled = SetupInformation.ParityCheckingEnabled; | |
1534 | HostAdapter->BusResetEnabled = true; | |
1535 | } | |
1536 | /* | |
1537 | Determine the maximum number of Target IDs and Logical Units supported by | |
1538 | this driver for Wide and Narrow Host Adapters. | |
1539 | */ | |
1540 | HostAdapter->MaxTargetDevices = (HostAdapter->HostWideSCSI ? 16 : 8); | |
1541 | HostAdapter->MaxLogicalUnits = (HostAdapter->ExtendedLUNSupport ? 32 : 8); | |
1542 | /* | |
1543 | Select appropriate values for the Mailbox Count, Driver Queue Depth, | |
1544 | Initial CCBs, and Incremental CCBs variables based on whether or not Strict | |
1545 | Round Robin Mode is supported. If Strict Round Robin Mode is supported, | |
1546 | then there is no performance degradation in using the maximum possible | |
1547 | number of Outgoing and Incoming Mailboxes and allowing the Tagged and | |
1548 | Untagged Queue Depths to determine the actual utilization. If Strict Round | |
1549 | Robin Mode is not supported, then the Host Adapter must scan all the | |
1550 | Outgoing Mailboxes whenever an Outgoing Mailbox entry is made, which can | |
1551 | cause a substantial performance penalty. The host adapters actually have | |
1552 | room to store the following number of CCBs internally; that is, they can | |
1553 | internally queue and manage this many active commands on the SCSI bus | |
1554 | simultaneously. Performance measurements demonstrate that the Driver Queue | |
1555 | Depth should be set to the Mailbox Count, rather than the Host Adapter | |
1556 | Queue Depth (internal CCB capacity), as it is more efficient to have the | |
1557 | queued commands waiting in Outgoing Mailboxes if necessary than to block | |
1558 | the process in the higher levels of the SCSI Subsystem. | |
1559 | ||
1560 | 192 BT-948/958/958D | |
1561 | 100 BT-946C/956C/956CD/747C/757C/757CD/445C | |
1562 | 50 BT-545C/540CF | |
1563 | 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A | |
1564 | */ | |
1565 | if (HostAdapter->FirmwareVersion[0] == '5') | |
1566 | HostAdapter->HostAdapterQueueDepth = 192; | |
1567 | else if (HostAdapter->FirmwareVersion[0] == '4') | |
1568 | HostAdapter->HostAdapterQueueDepth = (HostAdapter->HostAdapterBusType != BusLogic_ISA_Bus ? 100 : 50); | |
1569 | else | |
1570 | HostAdapter->HostAdapterQueueDepth = 30; | |
1571 | if (strcmp(HostAdapter->FirmwareVersion, "3.31") >= 0) { | |
1572 | HostAdapter->StrictRoundRobinModeSupport = true; | |
1573 | HostAdapter->MailboxCount = BusLogic_MaxMailboxes; | |
1574 | } else { | |
1575 | HostAdapter->StrictRoundRobinModeSupport = false; | |
1576 | HostAdapter->MailboxCount = 32; | |
1577 | } | |
1578 | HostAdapter->DriverQueueDepth = HostAdapter->MailboxCount; | |
1579 | HostAdapter->InitialCCBs = 4 * BusLogic_CCB_AllocationGroupSize; | |
1580 | HostAdapter->IncrementalCCBs = BusLogic_CCB_AllocationGroupSize; | |
1581 | /* | |
1582 | Tagged Queuing support is available and operates properly on all "W" series | |
1583 | MultiMaster Host Adapters, on "C" series MultiMaster Host Adapters with | |
1584 | firmware version 4.22 and above, and on "S" series MultiMaster Host | |
1585 | Adapters with firmware version 3.35 and above. | |
1586 | */ | |
1587 | HostAdapter->TaggedQueuingPermitted = 0; | |
1588 | switch (HostAdapter->FirmwareVersion[0]) { | |
1589 | case '5': | |
1590 | HostAdapter->TaggedQueuingPermitted = 0xFFFF; | |
1591 | break; | |
1592 | case '4': | |
1593 | if (strcmp(HostAdapter->FirmwareVersion, "4.22") >= 0) | |
1594 | HostAdapter->TaggedQueuingPermitted = 0xFFFF; | |
1595 | break; | |
1596 | case '3': | |
1597 | if (strcmp(HostAdapter->FirmwareVersion, "3.35") >= 0) | |
1598 | HostAdapter->TaggedQueuingPermitted = 0xFFFF; | |
1599 | break; | |
1600 | } | |
1601 | /* | |
1602 | Determine the Host Adapter BIOS Address if the BIOS is enabled and | |
1603 | save it in the Host Adapter structure. The BIOS is disabled if the | |
1604 | BIOS_Address is 0. | |
1605 | */ | |
1606 | HostAdapter->BIOS_Address = ExtendedSetupInformation.BIOS_Address << 12; | |
1607 | /* | |
1608 | ISA Host Adapters require Bounce Buffers if there is more than 16MB memory. | |
1609 | */ | |
1610 | if (HostAdapter->HostAdapterBusType == BusLogic_ISA_Bus && (void *) high_memory > (void *) MAX_DMA_ADDRESS) | |
1611 | HostAdapter->BounceBuffersRequired = true; | |
1612 | /* | |
1613 | BusLogic BT-445S Host Adapters prior to board revision E have a hardware | |
1614 | bug whereby when the BIOS is enabled, transfers to/from the same address | |
1615 | range the BIOS occupies modulo 16MB are handled incorrectly. Only properly | |
1616 | functioning BT-445S Host Adapters have firmware version 3.37, so require | |
1617 | that ISA Bounce Buffers be used for the buggy BT-445S models if there is | |
1618 | more than 16MB memory. | |
1619 | */ | |
1620 | if (HostAdapter->BIOS_Address > 0 && strcmp(HostAdapter->ModelName, "BT-445S") == 0 && strcmp(HostAdapter->FirmwareVersion, "3.37") < 0 && (void *) high_memory > (void *) MAX_DMA_ADDRESS) | |
1621 | HostAdapter->BounceBuffersRequired = true; | |
1622 | /* | |
1623 | Initialize parameters common to MultiMaster and FlashPoint Host Adapters. | |
1624 | */ | |
1625 | Common: | |
1626 | /* | |
1627 | Initialize the Host Adapter Full Model Name from the Model Name. | |
1628 | */ | |
1629 | strcpy(HostAdapter->FullModelName, "BusLogic "); | |
1630 | strcat(HostAdapter->FullModelName, HostAdapter->ModelName); | |
1631 | /* | |
1632 | Select an appropriate value for the Tagged Queue Depth either from a | |
1633 | BusLogic Driver Options specification, or based on whether this Host | |
1634 | Adapter requires that ISA Bounce Buffers be used. The Tagged Queue Depth | |
1635 | is left at 0 for automatic determination in BusLogic_SelectQueueDepths. | |
1636 | Initialize the Untagged Queue Depth. | |
1637 | */ | |
1638 | for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) { | |
1639 | unsigned char QueueDepth = 0; | |
1640 | if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->QueueDepth[TargetID] > 0) | |
1641 | QueueDepth = HostAdapter->DriverOptions->QueueDepth[TargetID]; | |
1642 | else if (HostAdapter->BounceBuffersRequired) | |
1643 | QueueDepth = BusLogic_TaggedQueueDepthBB; | |
1644 | HostAdapter->QueueDepth[TargetID] = QueueDepth; | |
1645 | } | |
1646 | if (HostAdapter->BounceBuffersRequired) | |
1647 | HostAdapter->UntaggedQueueDepth = BusLogic_UntaggedQueueDepthBB; | |
1648 | else | |
1649 | HostAdapter->UntaggedQueueDepth = BusLogic_UntaggedQueueDepth; | |
1650 | if (HostAdapter->DriverOptions != NULL) | |
1651 | HostAdapter->CommonQueueDepth = HostAdapter->DriverOptions->CommonQueueDepth; | |
1652 | if (HostAdapter->CommonQueueDepth > 0 && HostAdapter->CommonQueueDepth < HostAdapter->UntaggedQueueDepth) | |
1653 | HostAdapter->UntaggedQueueDepth = HostAdapter->CommonQueueDepth; | |
1654 | /* | |
1655 | Tagged Queuing is only allowed if Disconnect/Reconnect is permitted. | |
1656 | Therefore, mask the Tagged Queuing Permitted Default bits with the | |
1657 | Disconnect/Reconnect Permitted bits. | |
1658 | */ | |
1659 | HostAdapter->TaggedQueuingPermitted &= HostAdapter->DisconnectPermitted; | |
1660 | /* | |
1661 | Combine the default Tagged Queuing Permitted bits with any BusLogic Driver | |
1662 | Options Tagged Queuing specification. | |
1663 | */ | |
1664 | if (HostAdapter->DriverOptions != NULL) | |
1665 | HostAdapter->TaggedQueuingPermitted = | |
1666 | (HostAdapter->DriverOptions->TaggedQueuingPermitted & HostAdapter->DriverOptions->TaggedQueuingPermittedMask) | (HostAdapter->TaggedQueuingPermitted & ~HostAdapter->DriverOptions->TaggedQueuingPermittedMask); | |
1667 | ||
1668 | /* | |
1669 | Select an appropriate value for Bus Settle Time either from a BusLogic | |
1670 | Driver Options specification, or from BusLogic_DefaultBusSettleTime. | |
1671 | */ | |
1672 | if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->BusSettleTime > 0) | |
1673 | HostAdapter->BusSettleTime = HostAdapter->DriverOptions->BusSettleTime; | |
1674 | else | |
1675 | HostAdapter->BusSettleTime = BusLogic_DefaultBusSettleTime; | |
1676 | /* | |
1677 | Indicate reading the Host Adapter Configuration completed successfully. | |
1678 | */ | |
1679 | return true; | |
1680 | } | |
1681 | ||
1682 | ||
1683 | /* | |
1684 | BusLogic_ReportHostAdapterConfiguration reports the configuration of | |
1685 | Host Adapter. | |
1686 | */ | |
1687 | ||
1688 | static boolean __init BusLogic_ReportHostAdapterConfiguration(struct BusLogic_HostAdapter | |
1689 | *HostAdapter) | |
1690 | { | |
1691 | unsigned short AllTargetsMask = (1 << HostAdapter->MaxTargetDevices) - 1; | |
1692 | unsigned short SynchronousPermitted, FastPermitted; | |
1693 | unsigned short UltraPermitted, WidePermitted; | |
1694 | unsigned short DisconnectPermitted, TaggedQueuingPermitted; | |
1695 | boolean CommonSynchronousNegotiation, CommonTaggedQueueDepth; | |
1696 | char SynchronousString[BusLogic_MaxTargetDevices + 1]; | |
1697 | char WideString[BusLogic_MaxTargetDevices + 1]; | |
1698 | char DisconnectString[BusLogic_MaxTargetDevices + 1]; | |
1699 | char TaggedQueuingString[BusLogic_MaxTargetDevices + 1]; | |
1700 | char *SynchronousMessage = SynchronousString; | |
1701 | char *WideMessage = WideString; | |
1702 | char *DisconnectMessage = DisconnectString; | |
1703 | char *TaggedQueuingMessage = TaggedQueuingString; | |
1704 | int TargetID; | |
1705 | BusLogic_Info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n", | |
1706 | HostAdapter, HostAdapter->ModelName, | |
1707 | BusLogic_HostAdapterBusNames[HostAdapter->HostAdapterBusType], (HostAdapter->HostWideSCSI ? " Wide" : ""), (HostAdapter->HostDifferentialSCSI ? " Differential" : ""), (HostAdapter->HostUltraSCSI ? " Ultra" : "")); | |
1708 | 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")); | |
1709 | if (HostAdapter->HostAdapterBusType != BusLogic_PCI_Bus) { | |
1710 | BusLogic_Info(" DMA Channel: ", HostAdapter); | |
1711 | if (HostAdapter->DMA_Channel > 0) | |
1712 | BusLogic_Info("%d, ", HostAdapter, HostAdapter->DMA_Channel); | |
1713 | else | |
1714 | BusLogic_Info("None, ", HostAdapter); | |
1715 | if (HostAdapter->BIOS_Address > 0) | |
1716 | BusLogic_Info("BIOS Address: 0x%X, ", HostAdapter, HostAdapter->BIOS_Address); | |
1717 | else | |
1718 | BusLogic_Info("BIOS Address: None, ", HostAdapter); | |
1719 | } else { | |
1720 | BusLogic_Info(" PCI Bus: %d, Device: %d, Address: ", HostAdapter, HostAdapter->Bus, HostAdapter->Device); | |
1721 | if (HostAdapter->PCI_Address > 0) | |
1722 | BusLogic_Info("0x%X, ", HostAdapter, HostAdapter->PCI_Address); | |
1723 | else | |
1724 | BusLogic_Info("Unassigned, ", HostAdapter); | |
1725 | } | |
1726 | BusLogic_Info("Host Adapter SCSI ID: %d\n", HostAdapter, HostAdapter->SCSI_ID); | |
1727 | BusLogic_Info(" Parity Checking: %s, Extended Translation: %s\n", HostAdapter, (HostAdapter->ParityCheckingEnabled ? "Enabled" : "Disabled"), (HostAdapter->ExtendedTranslationEnabled ? "Enabled" : "Disabled")); | |
1728 | AllTargetsMask &= ~(1 << HostAdapter->SCSI_ID); | |
1729 | SynchronousPermitted = HostAdapter->SynchronousPermitted & AllTargetsMask; | |
1730 | FastPermitted = HostAdapter->FastPermitted & AllTargetsMask; | |
1731 | UltraPermitted = HostAdapter->UltraPermitted & AllTargetsMask; | |
1732 | if ((BusLogic_MultiMasterHostAdapterP(HostAdapter) && (HostAdapter->FirmwareVersion[0] >= '4' || HostAdapter->HostAdapterBusType == BusLogic_EISA_Bus)) || BusLogic_FlashPointHostAdapterP(HostAdapter)) { | |
1733 | CommonSynchronousNegotiation = false; | |
1734 | if (SynchronousPermitted == 0) { | |
1735 | SynchronousMessage = "Disabled"; | |
1736 | CommonSynchronousNegotiation = true; | |
1737 | } else if (SynchronousPermitted == AllTargetsMask) { | |
1738 | if (FastPermitted == 0) { | |
1739 | SynchronousMessage = "Slow"; | |
1740 | CommonSynchronousNegotiation = true; | |
1741 | } else if (FastPermitted == AllTargetsMask) { | |
1742 | if (UltraPermitted == 0) { | |
1743 | SynchronousMessage = "Fast"; | |
1744 | CommonSynchronousNegotiation = true; | |
1745 | } else if (UltraPermitted == AllTargetsMask) { | |
1746 | SynchronousMessage = "Ultra"; | |
1747 | CommonSynchronousNegotiation = true; | |
1748 | } | |
1749 | } | |
1750 | } | |
1751 | if (!CommonSynchronousNegotiation) { | |
1752 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
1753 | SynchronousString[TargetID] = ((!(SynchronousPermitted & (1 << TargetID))) ? 'N' : (!(FastPermitted & (1 << TargetID)) ? 'S' : (!(UltraPermitted & (1 << TargetID)) ? 'F' : 'U'))); | |
1754 | SynchronousString[HostAdapter->SCSI_ID] = '#'; | |
1755 | SynchronousString[HostAdapter->MaxTargetDevices] = '\0'; | |
1756 | } | |
1757 | } else | |
1758 | SynchronousMessage = (SynchronousPermitted == 0 ? "Disabled" : "Enabled"); | |
1759 | WidePermitted = HostAdapter->WidePermitted & AllTargetsMask; | |
1760 | if (WidePermitted == 0) | |
1761 | WideMessage = "Disabled"; | |
1762 | else if (WidePermitted == AllTargetsMask) | |
1763 | WideMessage = "Enabled"; | |
1764 | else { | |
1765 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
1766 | WideString[TargetID] = ((WidePermitted & (1 << TargetID)) ? 'Y' : 'N'); | |
1767 | WideString[HostAdapter->SCSI_ID] = '#'; | |
1768 | WideString[HostAdapter->MaxTargetDevices] = '\0'; | |
1769 | } | |
1770 | DisconnectPermitted = HostAdapter->DisconnectPermitted & AllTargetsMask; | |
1771 | if (DisconnectPermitted == 0) | |
1772 | DisconnectMessage = "Disabled"; | |
1773 | else if (DisconnectPermitted == AllTargetsMask) | |
1774 | DisconnectMessage = "Enabled"; | |
1775 | else { | |
1776 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
1777 | DisconnectString[TargetID] = ((DisconnectPermitted & (1 << TargetID)) ? 'Y' : 'N'); | |
1778 | DisconnectString[HostAdapter->SCSI_ID] = '#'; | |
1779 | DisconnectString[HostAdapter->MaxTargetDevices] = '\0'; | |
1780 | } | |
1781 | TaggedQueuingPermitted = HostAdapter->TaggedQueuingPermitted & AllTargetsMask; | |
1782 | if (TaggedQueuingPermitted == 0) | |
1783 | TaggedQueuingMessage = "Disabled"; | |
1784 | else if (TaggedQueuingPermitted == AllTargetsMask) | |
1785 | TaggedQueuingMessage = "Enabled"; | |
1786 | else { | |
1787 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
1788 | TaggedQueuingString[TargetID] = ((TaggedQueuingPermitted & (1 << TargetID)) ? 'Y' : 'N'); | |
1789 | TaggedQueuingString[HostAdapter->SCSI_ID] = '#'; | |
1790 | TaggedQueuingString[HostAdapter->MaxTargetDevices] = '\0'; | |
1791 | } | |
1792 | BusLogic_Info(" Synchronous Negotiation: %s, Wide Negotiation: %s\n", HostAdapter, SynchronousMessage, WideMessage); | |
1793 | BusLogic_Info(" Disconnect/Reconnect: %s, Tagged Queuing: %s\n", HostAdapter, DisconnectMessage, TaggedQueuingMessage); | |
1794 | if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) { | |
1795 | BusLogic_Info(" Scatter/Gather Limit: %d of %d segments, " "Mailboxes: %d\n", HostAdapter, HostAdapter->DriverScatterGatherLimit, HostAdapter->HostAdapterScatterGatherLimit, HostAdapter->MailboxCount); | |
1796 | BusLogic_Info(" Driver Queue Depth: %d, " "Host Adapter Queue Depth: %d\n", HostAdapter, HostAdapter->DriverQueueDepth, HostAdapter->HostAdapterQueueDepth); | |
1797 | } else | |
1798 | BusLogic_Info(" Driver Queue Depth: %d, " "Scatter/Gather Limit: %d segments\n", HostAdapter, HostAdapter->DriverQueueDepth, HostAdapter->DriverScatterGatherLimit); | |
1799 | BusLogic_Info(" Tagged Queue Depth: ", HostAdapter); | |
1800 | CommonTaggedQueueDepth = true; | |
1801 | for (TargetID = 1; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
1802 | if (HostAdapter->QueueDepth[TargetID] != HostAdapter->QueueDepth[0]) { | |
1803 | CommonTaggedQueueDepth = false; | |
1804 | break; | |
1805 | } | |
1806 | if (CommonTaggedQueueDepth) { | |
1807 | if (HostAdapter->QueueDepth[0] > 0) | |
1808 | BusLogic_Info("%d", HostAdapter, HostAdapter->QueueDepth[0]); | |
1809 | else | |
1810 | BusLogic_Info("Automatic", HostAdapter); | |
1811 | } else | |
1812 | BusLogic_Info("Individual", HostAdapter); | |
1813 | BusLogic_Info(", Untagged Queue Depth: %d\n", HostAdapter, HostAdapter->UntaggedQueueDepth); | |
1814 | if (HostAdapter->TerminationInfoValid) { | |
1815 | if (HostAdapter->HostWideSCSI) | |
1816 | BusLogic_Info(" SCSI Bus Termination: %s", HostAdapter, (HostAdapter->LowByteTerminated ? (HostAdapter->HighByteTerminated ? "Both Enabled" : "Low Enabled") | |
1817 | : (HostAdapter->HighByteTerminated ? "High Enabled" : "Both Disabled"))); | |
1818 | else | |
1819 | BusLogic_Info(" SCSI Bus Termination: %s", HostAdapter, (HostAdapter->LowByteTerminated ? "Enabled" : "Disabled")); | |
1820 | if (HostAdapter->HostSupportsSCAM) | |
1821 | BusLogic_Info(", SCAM: %s", HostAdapter, (HostAdapter->SCAM_Enabled ? (HostAdapter->SCAM_Level2 ? "Enabled, Level 2" : "Enabled, Level 1") | |
1822 | : "Disabled")); | |
1823 | BusLogic_Info("\n", HostAdapter); | |
1824 | } | |
1825 | /* | |
1826 | Indicate reporting the Host Adapter configuration completed successfully. | |
1827 | */ | |
1828 | return true; | |
1829 | } | |
1830 | ||
1831 | ||
1832 | /* | |
1833 | BusLogic_AcquireResources acquires the system resources necessary to use | |
1834 | Host Adapter. | |
1835 | */ | |
1836 | ||
1837 | static boolean __init BusLogic_AcquireResources(struct BusLogic_HostAdapter *HostAdapter) | |
1838 | { | |
1839 | if (HostAdapter->IRQ_Channel == 0) { | |
1840 | BusLogic_Error("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n", HostAdapter); | |
1841 | return false; | |
1842 | } | |
1843 | /* | |
1844 | Acquire shared access to the IRQ Channel. | |
1845 | */ | |
1846 | if (request_irq(HostAdapter->IRQ_Channel, BusLogic_InterruptHandler, SA_SHIRQ, HostAdapter->FullModelName, HostAdapter) < 0) { | |
1847 | BusLogic_Error("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n", HostAdapter, HostAdapter->IRQ_Channel); | |
1848 | return false; | |
1849 | } | |
1850 | HostAdapter->IRQ_ChannelAcquired = true; | |
1851 | /* | |
1852 | Acquire exclusive access to the DMA Channel. | |
1853 | */ | |
1854 | if (HostAdapter->DMA_Channel > 0) { | |
1855 | if (request_dma(HostAdapter->DMA_Channel, HostAdapter->FullModelName) < 0) { | |
1856 | BusLogic_Error("UNABLE TO ACQUIRE DMA CHANNEL %d - DETACHING\n", HostAdapter, HostAdapter->DMA_Channel); | |
1857 | return false; | |
1858 | } | |
1859 | set_dma_mode(HostAdapter->DMA_Channel, DMA_MODE_CASCADE); | |
1860 | enable_dma(HostAdapter->DMA_Channel); | |
1861 | HostAdapter->DMA_ChannelAcquired = true; | |
1862 | } | |
1863 | /* | |
1864 | Indicate the System Resource Acquisition completed successfully, | |
1865 | */ | |
1866 | return true; | |
1867 | } | |
1868 | ||
1869 | ||
1870 | /* | |
1871 | BusLogic_ReleaseResources releases any system resources previously acquired | |
1872 | by BusLogic_AcquireResources. | |
1873 | */ | |
1874 | ||
1875 | static void BusLogic_ReleaseResources(struct BusLogic_HostAdapter *HostAdapter) | |
1876 | { | |
1877 | /* | |
1878 | Release shared access to the IRQ Channel. | |
1879 | */ | |
1880 | if (HostAdapter->IRQ_ChannelAcquired) | |
1881 | free_irq(HostAdapter->IRQ_Channel, HostAdapter); | |
1882 | /* | |
1883 | Release exclusive access to the DMA Channel. | |
1884 | */ | |
1885 | if (HostAdapter->DMA_ChannelAcquired) | |
1886 | free_dma(HostAdapter->DMA_Channel); | |
1887 | /* | |
1888 | Release any allocated memory structs not released elsewhere | |
1889 | */ | |
1890 | if (HostAdapter->MailboxSpace) | |
1891 | pci_free_consistent(HostAdapter->PCI_Device, HostAdapter->MailboxSize, HostAdapter->MailboxSpace, HostAdapter->MailboxSpaceHandle); | |
1892 | HostAdapter->MailboxSpace = NULL; | |
1893 | HostAdapter->MailboxSpaceHandle = 0; | |
1894 | HostAdapter->MailboxSize = 0; | |
1895 | } | |
1896 | ||
1897 | ||
1898 | /* | |
1899 | BusLogic_InitializeHostAdapter initializes Host Adapter. This is the only | |
1900 | function called during SCSI Host Adapter detection which modifies the state | |
1901 | of the Host Adapter from its initial power on or hard reset state. | |
1902 | */ | |
1903 | ||
1904 | static boolean BusLogic_InitializeHostAdapter(struct BusLogic_HostAdapter | |
1905 | *HostAdapter) | |
1906 | { | |
1907 | struct BusLogic_ExtendedMailboxRequest ExtendedMailboxRequest; | |
1908 | enum BusLogic_RoundRobinModeRequest RoundRobinModeRequest; | |
1909 | enum BusLogic_SetCCBFormatRequest SetCCBFormatRequest; | |
1910 | int TargetID; | |
1911 | /* | |
1912 | Initialize the pointers to the first and last CCBs that are queued for | |
1913 | completion processing. | |
1914 | */ | |
1915 | HostAdapter->FirstCompletedCCB = NULL; | |
1916 | HostAdapter->LastCompletedCCB = NULL; | |
1917 | /* | |
1918 | Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active, | |
1919 | Command Successful Flag, Active Commands, and Commands Since Reset | |
1920 | for each Target Device. | |
1921 | */ | |
1922 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { | |
1923 | HostAdapter->BusDeviceResetPendingCCB[TargetID] = NULL; | |
1924 | HostAdapter->TargetFlags[TargetID].TaggedQueuingActive = false; | |
1925 | HostAdapter->TargetFlags[TargetID].CommandSuccessfulFlag = false; | |
1926 | HostAdapter->ActiveCommands[TargetID] = 0; | |
1927 | HostAdapter->CommandsSinceReset[TargetID] = 0; | |
1928 | } | |
1929 | /* | |
1930 | FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes. | |
1931 | */ | |
1932 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) | |
1933 | goto Done; | |
1934 | /* | |
1935 | Initialize the Outgoing and Incoming Mailbox pointers. | |
1936 | */ | |
1937 | HostAdapter->MailboxSize = HostAdapter->MailboxCount * (sizeof(struct BusLogic_OutgoingMailbox) + sizeof(struct BusLogic_IncomingMailbox)); | |
1938 | HostAdapter->MailboxSpace = pci_alloc_consistent(HostAdapter->PCI_Device, HostAdapter->MailboxSize, &HostAdapter->MailboxSpaceHandle); | |
1939 | if (HostAdapter->MailboxSpace == NULL) | |
1940 | return BusLogic_Failure(HostAdapter, "MAILBOX ALLOCATION"); | |
1941 | HostAdapter->FirstOutgoingMailbox = (struct BusLogic_OutgoingMailbox *) HostAdapter->MailboxSpace; | |
1942 | HostAdapter->LastOutgoingMailbox = HostAdapter->FirstOutgoingMailbox + HostAdapter->MailboxCount - 1; | |
1943 | HostAdapter->NextOutgoingMailbox = HostAdapter->FirstOutgoingMailbox; | |
1944 | HostAdapter->FirstIncomingMailbox = (struct BusLogic_IncomingMailbox *) (HostAdapter->LastOutgoingMailbox + 1); | |
1945 | HostAdapter->LastIncomingMailbox = HostAdapter->FirstIncomingMailbox + HostAdapter->MailboxCount - 1; | |
1946 | HostAdapter->NextIncomingMailbox = HostAdapter->FirstIncomingMailbox; | |
1947 | ||
1948 | /* | |
1949 | Initialize the Outgoing and Incoming Mailbox structures. | |
1950 | */ | |
1951 | memset(HostAdapter->FirstOutgoingMailbox, 0, HostAdapter->MailboxCount * sizeof(struct BusLogic_OutgoingMailbox)); | |
1952 | memset(HostAdapter->FirstIncomingMailbox, 0, HostAdapter->MailboxCount * sizeof(struct BusLogic_IncomingMailbox)); | |
1953 | /* | |
1954 | Initialize the Host Adapter's Pointer to the Outgoing/Incoming Mailboxes. | |
1955 | */ | |
1956 | ExtendedMailboxRequest.MailboxCount = HostAdapter->MailboxCount; | |
1957 | ExtendedMailboxRequest.BaseMailboxAddress = (u32) HostAdapter->MailboxSpaceHandle; | |
1958 | if (BusLogic_Command(HostAdapter, BusLogic_InitializeExtendedMailbox, &ExtendedMailboxRequest, sizeof(ExtendedMailboxRequest), NULL, 0) < 0) | |
1959 | return BusLogic_Failure(HostAdapter, "MAILBOX INITIALIZATION"); | |
1960 | /* | |
1961 | Enable Strict Round Robin Mode if supported by the Host Adapter. In | |
1962 | Strict Round Robin Mode, the Host Adapter only looks at the next Outgoing | |
1963 | Mailbox for each new command, rather than scanning through all the | |
1964 | Outgoing Mailboxes to find any that have new commands in them. Strict | |
1965 | Round Robin Mode is significantly more efficient. | |
1966 | */ | |
1967 | if (HostAdapter->StrictRoundRobinModeSupport) { | |
1968 | RoundRobinModeRequest = BusLogic_StrictRoundRobinMode; | |
1969 | if (BusLogic_Command(HostAdapter, BusLogic_EnableStrictRoundRobinMode, &RoundRobinModeRequest, sizeof(RoundRobinModeRequest), NULL, 0) < 0) | |
1970 | return BusLogic_Failure(HostAdapter, "ENABLE STRICT ROUND ROBIN MODE"); | |
1971 | } | |
1972 | /* | |
1973 | For Host Adapters that support Extended LUN Format CCBs, issue the Set CCB | |
1974 | Format command to allow 32 Logical Units per Target Device. | |
1975 | */ | |
1976 | if (HostAdapter->ExtendedLUNSupport) { | |
1977 | SetCCBFormatRequest = BusLogic_ExtendedLUNFormatCCB; | |
1978 | if (BusLogic_Command(HostAdapter, BusLogic_SetCCBFormat, &SetCCBFormatRequest, sizeof(SetCCBFormatRequest), NULL, 0) < 0) | |
1979 | return BusLogic_Failure(HostAdapter, "SET CCB FORMAT"); | |
1980 | } | |
1981 | /* | |
1982 | Announce Successful Initialization. | |
1983 | */ | |
1984 | Done: | |
1985 | if (!HostAdapter->HostAdapterInitialized) { | |
1986 | BusLogic_Info("*** %s Initialized Successfully ***\n", HostAdapter, HostAdapter->FullModelName); | |
1987 | BusLogic_Info("\n", HostAdapter); | |
1988 | } else | |
1989 | BusLogic_Warning("*** %s Initialized Successfully ***\n", HostAdapter, HostAdapter->FullModelName); | |
1990 | HostAdapter->HostAdapterInitialized = true; | |
1991 | /* | |
1992 | Indicate the Host Adapter Initialization completed successfully. | |
1993 | */ | |
1994 | return true; | |
1995 | } | |
1996 | ||
1997 | ||
1998 | /* | |
1999 | BusLogic_TargetDeviceInquiry inquires about the Target Devices accessible | |
2000 | through Host Adapter. | |
2001 | */ | |
2002 | ||
2003 | static boolean __init BusLogic_TargetDeviceInquiry(struct BusLogic_HostAdapter | |
2004 | *HostAdapter) | |
2005 | { | |
2006 | u16 InstalledDevices; | |
2007 | u8 InstalledDevicesID0to7[8]; | |
2008 | struct BusLogic_SetupInformation SetupInformation; | |
2009 | u8 SynchronousPeriod[BusLogic_MaxTargetDevices]; | |
2010 | unsigned char RequestedReplyLength; | |
2011 | int TargetID; | |
2012 | /* | |
2013 | Wait a few seconds between the Host Adapter Hard Reset which initiates | |
2014 | a SCSI Bus Reset and issuing any SCSI Commands. Some SCSI devices get | |
2015 | confused if they receive SCSI Commands too soon after a SCSI Bus Reset. | |
2016 | */ | |
2017 | BusLogic_Delay(HostAdapter->BusSettleTime); | |
2018 | /* | |
2019 | FlashPoint Host Adapters do not provide for Target Device Inquiry. | |
2020 | */ | |
2021 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) | |
2022 | return true; | |
2023 | /* | |
2024 | Inhibit the Target Device Inquiry if requested. | |
2025 | */ | |
2026 | if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->LocalOptions.InhibitTargetInquiry) | |
2027 | return true; | |
2028 | /* | |
2029 | Issue the Inquire Target Devices command for host adapters with firmware | |
2030 | version 4.25 or later, or the Inquire Installed Devices ID 0 to 7 command | |
2031 | for older host adapters. This is necessary to force Synchronous Transfer | |
2032 | Negotiation so that the Inquire Setup Information and Inquire Synchronous | |
2033 | Period commands will return valid data. The Inquire Target Devices command | |
2034 | is preferable to Inquire Installed Devices ID 0 to 7 since it only probes | |
2035 | Logical Unit 0 of each Target Device. | |
2036 | */ | |
2037 | if (strcmp(HostAdapter->FirmwareVersion, "4.25") >= 0) { | |
2038 | ||
2039 | /* | |
2040 | * Issue a Inquire Target Devices command. Inquire Target Devices only | |
2041 | * tests Logical Unit 0 of each Target Device unlike the Inquire Installed | |
2042 | * Devices commands which test Logical Units 0 - 7. Two bytes are | |
2043 | * returned, where byte 0 bit 0 set indicates that Target Device 0 exists, | |
2044 | * and so on. | |
2045 | */ | |
2046 | ||
2047 | if (BusLogic_Command(HostAdapter, BusLogic_InquireTargetDevices, NULL, 0, &InstalledDevices, sizeof(InstalledDevices)) | |
2048 | != sizeof(InstalledDevices)) | |
2049 | return BusLogic_Failure(HostAdapter, "INQUIRE TARGET DEVICES"); | |
2050 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
2051 | HostAdapter->TargetFlags[TargetID].TargetExists = (InstalledDevices & (1 << TargetID) ? true : false); | |
2052 | } else { | |
2053 | ||
2054 | /* | |
2055 | * Issue an Inquire Installed Devices command. For each Target Device, | |
2056 | * a byte is returned where bit 0 set indicates that Logical Unit 0 | |
2057 | * exists, bit 1 set indicates that Logical Unit 1 exists, and so on. | |
2058 | */ | |
2059 | ||
2060 | if (BusLogic_Command(HostAdapter, BusLogic_InquireInstalledDevicesID0to7, NULL, 0, &InstalledDevicesID0to7, sizeof(InstalledDevicesID0to7)) | |
2061 | != sizeof(InstalledDevicesID0to7)) | |
2062 | return BusLogic_Failure(HostAdapter, "INQUIRE INSTALLED DEVICES ID 0 TO 7"); | |
2063 | for (TargetID = 0; TargetID < 8; TargetID++) | |
2064 | HostAdapter->TargetFlags[TargetID].TargetExists = (InstalledDevicesID0to7[TargetID] != 0 ? true : false); | |
2065 | } | |
2066 | /* | |
2067 | Issue the Inquire Setup Information command. | |
2068 | */ | |
2069 | RequestedReplyLength = sizeof(SetupInformation); | |
2070 | if (BusLogic_Command(HostAdapter, BusLogic_InquireSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &SetupInformation, sizeof(SetupInformation)) | |
2071 | != sizeof(SetupInformation)) | |
2072 | return BusLogic_Failure(HostAdapter, "INQUIRE SETUP INFORMATION"); | |
2073 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
2074 | HostAdapter->SynchronousOffset[TargetID] = (TargetID < 8 ? SetupInformation.SynchronousValuesID0to7[TargetID].Offset : SetupInformation.SynchronousValuesID8to15[TargetID - 8].Offset); | |
2075 | if (strcmp(HostAdapter->FirmwareVersion, "5.06L") >= 0) | |
2076 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
2077 | HostAdapter->TargetFlags[TargetID].WideTransfersActive = (TargetID < 8 ? (SetupInformation.WideTransfersActiveID0to7 & (1 << TargetID) | |
2078 | ? true : false) | |
2079 | : (SetupInformation.WideTransfersActiveID8to15 & (1 << (TargetID - 8)) | |
2080 | ? true : false)); | |
2081 | /* | |
2082 | Issue the Inquire Synchronous Period command. | |
2083 | */ | |
2084 | if (HostAdapter->FirmwareVersion[0] >= '3') { | |
2085 | ||
2086 | /* Issue a Inquire Synchronous Period command. For each Target Device, | |
2087 | * a byte is returned which represents the Synchronous Transfer Period | |
2088 | * in units of 10 nanoseconds. | |
2089 | */ | |
2090 | ||
2091 | RequestedReplyLength = sizeof(SynchronousPeriod); | |
2092 | if (BusLogic_Command(HostAdapter, BusLogic_InquireSynchronousPeriod, &RequestedReplyLength, sizeof(RequestedReplyLength), &SynchronousPeriod, sizeof(SynchronousPeriod)) | |
2093 | != sizeof(SynchronousPeriod)) | |
2094 | return BusLogic_Failure(HostAdapter, "INQUIRE SYNCHRONOUS PERIOD"); | |
2095 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
2096 | HostAdapter->SynchronousPeriod[TargetID] = SynchronousPeriod[TargetID]; | |
2097 | } else | |
2098 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
2099 | if (SetupInformation.SynchronousValuesID0to7[TargetID].Offset > 0) | |
2100 | HostAdapter->SynchronousPeriod[TargetID] = 20 + 5 * SetupInformation.SynchronousValuesID0to7[TargetID] | |
2101 | .TransferPeriod; | |
2102 | /* | |
2103 | Indicate the Target Device Inquiry completed successfully. | |
2104 | */ | |
2105 | return true; | |
2106 | } | |
2107 | ||
2108 | /* | |
2109 | BusLogic_InitializeHostStructure initializes the fields in the SCSI Host | |
2110 | structure. The base, io_port, n_io_ports, irq, and dma_channel fields in the | |
2111 | SCSI Host structure are intentionally left uninitialized, as this driver | |
2112 | handles acquisition and release of these resources explicitly, as well as | |
2113 | ensuring exclusive access to the Host Adapter hardware and data structures | |
2114 | through explicit acquisition and release of the Host Adapter's Lock. | |
2115 | */ | |
2116 | ||
2117 | static void __init BusLogic_InitializeHostStructure(struct BusLogic_HostAdapter | |
2118 | *HostAdapter, struct Scsi_Host *Host) | |
2119 | { | |
2120 | Host->max_id = HostAdapter->MaxTargetDevices; | |
2121 | Host->max_lun = HostAdapter->MaxLogicalUnits; | |
2122 | Host->max_channel = 0; | |
2123 | Host->unique_id = HostAdapter->IO_Address; | |
2124 | Host->this_id = HostAdapter->SCSI_ID; | |
2125 | Host->can_queue = HostAdapter->DriverQueueDepth; | |
2126 | Host->sg_tablesize = HostAdapter->DriverScatterGatherLimit; | |
2127 | Host->unchecked_isa_dma = HostAdapter->BounceBuffersRequired; | |
2128 | Host->cmd_per_lun = HostAdapter->UntaggedQueueDepth; | |
2129 | } | |
2130 | ||
2131 | /* | |
2132 | BusLogic_SlaveConfigure will actually set the queue depth on individual | |
2133 | scsi devices as they are permanently added to the device chain. We | |
2134 | shamelessly rip off the SelectQueueDepths code to make this work mostly | |
2135 | like it used to. Since we don't get called once at the end of the scan | |
2136 | but instead get called for each device, we have to do things a bit | |
2137 | differently. | |
2138 | */ | |
2139 | static int BusLogic_SlaveConfigure(struct scsi_device *Device) | |
2140 | { | |
2141 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Device->host->hostdata; | |
2142 | int TargetID = Device->id; | |
2143 | int QueueDepth = HostAdapter->QueueDepth[TargetID]; | |
2144 | ||
2145 | if (HostAdapter->TargetFlags[TargetID].TaggedQueuingSupported && (HostAdapter->TaggedQueuingPermitted & (1 << TargetID))) { | |
2146 | if (QueueDepth == 0) | |
2147 | QueueDepth = BusLogic_MaxAutomaticTaggedQueueDepth; | |
2148 | HostAdapter->QueueDepth[TargetID] = QueueDepth; | |
2149 | scsi_adjust_queue_depth(Device, MSG_SIMPLE_TAG, QueueDepth); | |
2150 | } else { | |
2151 | HostAdapter->TaggedQueuingPermitted &= ~(1 << TargetID); | |
2152 | QueueDepth = HostAdapter->UntaggedQueueDepth; | |
2153 | HostAdapter->QueueDepth[TargetID] = QueueDepth; | |
2154 | scsi_adjust_queue_depth(Device, 0, QueueDepth); | |
2155 | } | |
2156 | QueueDepth = 0; | |
2157 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) | |
2158 | if (HostAdapter->TargetFlags[TargetID].TargetExists) { | |
2159 | QueueDepth += HostAdapter->QueueDepth[TargetID]; | |
2160 | } | |
2161 | if (QueueDepth > HostAdapter->AllocatedCCBs) | |
2162 | BusLogic_CreateAdditionalCCBs(HostAdapter, QueueDepth - HostAdapter->AllocatedCCBs, false); | |
2163 | return 0; | |
2164 | } | |
2165 | ||
2166 | /* | |
2167 | BusLogic_DetectHostAdapter probes for BusLogic Host Adapters at the standard | |
2168 | I/O Addresses where they may be located, initializing, registering, and | |
2169 | reporting the configuration of each BusLogic Host Adapter it finds. It | |
2170 | returns the number of BusLogic Host Adapters successfully initialized and | |
2171 | registered. | |
2172 | */ | |
2173 | ||
2174 | static int __init BusLogic_init(void) | |
2175 | { | |
2176 | int BusLogicHostAdapterCount = 0, DriverOptionsIndex = 0, ProbeIndex; | |
2177 | struct BusLogic_HostAdapter *PrototypeHostAdapter; | |
2178 | ||
2179 | #ifdef MODULE | |
2180 | if (BusLogic) | |
2181 | BusLogic_Setup(BusLogic); | |
2182 | #endif | |
2183 | ||
2184 | if (BusLogic_ProbeOptions.NoProbe) | |
2185 | return -ENODEV; | |
2186 | BusLogic_ProbeInfoList = (struct BusLogic_ProbeInfo *) | |
2187 | kmalloc(BusLogic_MaxHostAdapters * sizeof(struct BusLogic_ProbeInfo), GFP_ATOMIC); | |
2188 | if (BusLogic_ProbeInfoList == NULL) { | |
2189 | BusLogic_Error("BusLogic: Unable to allocate Probe Info List\n", NULL); | |
2190 | return -ENOMEM; | |
2191 | } | |
2192 | memset(BusLogic_ProbeInfoList, 0, BusLogic_MaxHostAdapters * sizeof(struct BusLogic_ProbeInfo)); | |
2193 | PrototypeHostAdapter = (struct BusLogic_HostAdapter *) | |
2194 | kmalloc(sizeof(struct BusLogic_HostAdapter), GFP_ATOMIC); | |
2195 | if (PrototypeHostAdapter == NULL) { | |
2196 | kfree(BusLogic_ProbeInfoList); | |
2197 | BusLogic_Error("BusLogic: Unable to allocate Prototype " "Host Adapter\n", NULL); | |
2198 | return -ENOMEM; | |
2199 | } | |
2200 | memset(PrototypeHostAdapter, 0, sizeof(struct BusLogic_HostAdapter)); | |
2201 | #ifdef MODULE | |
2202 | if (BusLogic != NULL) | |
2203 | BusLogic_Setup(BusLogic); | |
2204 | #endif | |
2205 | BusLogic_InitializeProbeInfoList(PrototypeHostAdapter); | |
2206 | for (ProbeIndex = 0; ProbeIndex < BusLogic_ProbeInfoCount; ProbeIndex++) { | |
2207 | struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[ProbeIndex]; | |
2208 | struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter; | |
2209 | struct Scsi_Host *Host; | |
2210 | if (ProbeInfo->IO_Address == 0) | |
2211 | continue; | |
2212 | memset(HostAdapter, 0, sizeof(struct BusLogic_HostAdapter)); | |
2213 | HostAdapter->HostAdapterType = ProbeInfo->HostAdapterType; | |
2214 | HostAdapter->HostAdapterBusType = ProbeInfo->HostAdapterBusType; | |
2215 | HostAdapter->IO_Address = ProbeInfo->IO_Address; | |
2216 | HostAdapter->PCI_Address = ProbeInfo->PCI_Address; | |
2217 | HostAdapter->Bus = ProbeInfo->Bus; | |
2218 | HostAdapter->Device = ProbeInfo->Device; | |
2219 | HostAdapter->IRQ_Channel = ProbeInfo->IRQ_Channel; | |
2220 | HostAdapter->AddressCount = BusLogic_HostAdapterAddressCount[HostAdapter->HostAdapterType]; | |
2221 | /* | |
2222 | Probe the Host Adapter. If unsuccessful, abort further initialization. | |
2223 | */ | |
2224 | if (!BusLogic_ProbeHostAdapter(HostAdapter)) | |
2225 | continue; | |
2226 | /* | |
2227 | Hard Reset the Host Adapter. If unsuccessful, abort further | |
2228 | initialization. | |
2229 | */ | |
2230 | if (!BusLogic_HardwareResetHostAdapter(HostAdapter, true)) | |
2231 | continue; | |
2232 | /* | |
2233 | Check the Host Adapter. If unsuccessful, abort further initialization. | |
2234 | */ | |
2235 | if (!BusLogic_CheckHostAdapter(HostAdapter)) | |
2236 | continue; | |
2237 | /* | |
2238 | Initialize the Driver Options field if provided. | |
2239 | */ | |
2240 | if (DriverOptionsIndex < BusLogic_DriverOptionsCount) | |
2241 | HostAdapter->DriverOptions = &BusLogic_DriverOptions[DriverOptionsIndex++]; | |
2242 | /* | |
2243 | Announce the Driver Version and Date, Author's Name, Copyright Notice, | |
2244 | and Electronic Mail Address. | |
2245 | */ | |
2246 | BusLogic_AnnounceDriver(HostAdapter); | |
2247 | /* | |
2248 | Register usage of the I/O Address range. From this point onward, any | |
2249 | failure will be assumed to be due to a problem with the Host Adapter, | |
2250 | rather than due to having mistakenly identified this port as belonging | |
2251 | to a BusLogic Host Adapter. The I/O Address range will not be | |
2252 | released, thereby preventing it from being incorrectly identified as | |
2253 | any other type of Host Adapter. | |
2254 | */ | |
2255 | if (!request_region(HostAdapter->IO_Address, HostAdapter->AddressCount, "BusLogic")) | |
2256 | continue; | |
2257 | /* | |
2258 | Register the SCSI Host structure. | |
2259 | */ | |
2260 | ||
2261 | Host = scsi_host_alloc(&Bus_Logic_template, sizeof(struct BusLogic_HostAdapter)); | |
2262 | if (Host == NULL) { | |
2263 | release_region(HostAdapter->IO_Address, HostAdapter->AddressCount); | |
2264 | continue; | |
2265 | } | |
2266 | HostAdapter = (struct BusLogic_HostAdapter *) Host->hostdata; | |
2267 | memcpy(HostAdapter, PrototypeHostAdapter, sizeof(struct BusLogic_HostAdapter)); | |
2268 | HostAdapter->SCSI_Host = Host; | |
2269 | HostAdapter->HostNumber = Host->host_no; | |
2270 | /* | |
2271 | Add Host Adapter to the end of the list of registered BusLogic | |
2272 | Host Adapters. | |
2273 | */ | |
2274 | list_add_tail(&HostAdapter->host_list, &BusLogic_host_list); | |
2275 | ||
2276 | /* | |
2277 | Read the Host Adapter Configuration, Configure the Host Adapter, | |
2278 | Acquire the System Resources necessary to use the Host Adapter, then | |
2279 | Create the Initial CCBs, Initialize the Host Adapter, and finally | |
2280 | perform Target Device Inquiry. | |
2281 | */ | |
2282 | if (BusLogic_ReadHostAdapterConfiguration(HostAdapter) && | |
2283 | BusLogic_ReportHostAdapterConfiguration(HostAdapter) && BusLogic_AcquireResources(HostAdapter) && BusLogic_CreateInitialCCBs(HostAdapter) && BusLogic_InitializeHostAdapter(HostAdapter) && BusLogic_TargetDeviceInquiry(HostAdapter)) { | |
2284 | /* | |
2285 | Initialization has been completed successfully. Release and | |
2286 | re-register usage of the I/O Address range so that the Model | |
2287 | Name of the Host Adapter will appear, and initialize the SCSI | |
2288 | Host structure. | |
2289 | */ | |
2290 | release_region(HostAdapter->IO_Address, HostAdapter->AddressCount); | |
2291 | if (!request_region(HostAdapter->IO_Address, HostAdapter->AddressCount, HostAdapter->FullModelName)) { | |
2292 | printk(KERN_WARNING "BusLogic: Release and re-register of " "port 0x%04lx failed \n", (unsigned long) HostAdapter->IO_Address); | |
2293 | BusLogic_DestroyCCBs(HostAdapter); | |
2294 | BusLogic_ReleaseResources(HostAdapter); | |
2295 | list_del(&HostAdapter->host_list); | |
2296 | scsi_host_put(Host); | |
2297 | } else { | |
2298 | BusLogic_InitializeHostStructure(HostAdapter, Host); | |
2299 | scsi_add_host(Host, NULL); | |
2300 | scsi_scan_host(Host); | |
2301 | BusLogicHostAdapterCount++; | |
2302 | } | |
2303 | } else { | |
2304 | /* | |
2305 | An error occurred during Host Adapter Configuration Querying, Host | |
2306 | Adapter Configuration, Resource Acquisition, CCB Creation, Host | |
2307 | Adapter Initialization, or Target Device Inquiry, so remove Host | |
2308 | Adapter from the list of registered BusLogic Host Adapters, destroy | |
2309 | the CCBs, Release the System Resources, and Unregister the SCSI | |
2310 | Host. | |
2311 | */ | |
2312 | BusLogic_DestroyCCBs(HostAdapter); | |
2313 | BusLogic_ReleaseResources(HostAdapter); | |
2314 | list_del(&HostAdapter->host_list); | |
2315 | scsi_host_put(Host); | |
2316 | } | |
2317 | } | |
2318 | kfree(PrototypeHostAdapter); | |
2319 | kfree(BusLogic_ProbeInfoList); | |
2320 | BusLogic_ProbeInfoList = NULL; | |
2321 | return 0; | |
2322 | } | |
2323 | ||
2324 | ||
2325 | /* | |
2326 | BusLogic_ReleaseHostAdapter releases all resources previously acquired to | |
2327 | support a specific Host Adapter, including the I/O Address range, and | |
2328 | unregisters the BusLogic Host Adapter. | |
2329 | */ | |
2330 | ||
2331 | static int __exit BusLogic_ReleaseHostAdapter(struct BusLogic_HostAdapter *HostAdapter) | |
2332 | { | |
2333 | struct Scsi_Host *Host = HostAdapter->SCSI_Host; | |
2334 | ||
2335 | scsi_remove_host(Host); | |
2336 | ||
2337 | /* | |
2338 | FlashPoint Host Adapters must first be released by the FlashPoint | |
2339 | SCCB Manager. | |
2340 | */ | |
2341 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) | |
2342 | FlashPoint_ReleaseHostAdapter(HostAdapter->CardHandle); | |
2343 | /* | |
2344 | Destroy the CCBs and release any system resources acquired to | |
2345 | support Host Adapter. | |
2346 | */ | |
2347 | BusLogic_DestroyCCBs(HostAdapter); | |
2348 | BusLogic_ReleaseResources(HostAdapter); | |
2349 | /* | |
2350 | Release usage of the I/O Address range. | |
2351 | */ | |
2352 | release_region(HostAdapter->IO_Address, HostAdapter->AddressCount); | |
2353 | /* | |
2354 | Remove Host Adapter from the list of registered BusLogic Host Adapters. | |
2355 | */ | |
2356 | list_del(&HostAdapter->host_list); | |
2357 | ||
2358 | scsi_host_put(Host); | |
2359 | return 0; | |
2360 | } | |
2361 | ||
2362 | ||
2363 | /* | |
2364 | BusLogic_QueueCompletedCCB queues CCB for completion processing. | |
2365 | */ | |
2366 | ||
2367 | static void BusLogic_QueueCompletedCCB(struct BusLogic_CCB *CCB) | |
2368 | { | |
2369 | struct BusLogic_HostAdapter *HostAdapter = CCB->HostAdapter; | |
2370 | CCB->Status = BusLogic_CCB_Completed; | |
2371 | CCB->Next = NULL; | |
2372 | if (HostAdapter->FirstCompletedCCB == NULL) { | |
2373 | HostAdapter->FirstCompletedCCB = CCB; | |
2374 | HostAdapter->LastCompletedCCB = CCB; | |
2375 | } else { | |
2376 | HostAdapter->LastCompletedCCB->Next = CCB; | |
2377 | HostAdapter->LastCompletedCCB = CCB; | |
2378 | } | |
2379 | HostAdapter->ActiveCommands[CCB->TargetID]--; | |
2380 | } | |
2381 | ||
2382 | ||
2383 | /* | |
2384 | BusLogic_ComputeResultCode computes a SCSI Subsystem Result Code from | |
2385 | the Host Adapter Status and Target Device Status. | |
2386 | */ | |
2387 | ||
2388 | static int BusLogic_ComputeResultCode(struct BusLogic_HostAdapter *HostAdapter, enum BusLogic_HostAdapterStatus HostAdapterStatus, enum BusLogic_TargetDeviceStatus TargetDeviceStatus) | |
2389 | { | |
2390 | int HostStatus; | |
2391 | switch (HostAdapterStatus) { | |
2392 | case BusLogic_CommandCompletedNormally: | |
2393 | case BusLogic_LinkedCommandCompleted: | |
2394 | case BusLogic_LinkedCommandCompletedWithFlag: | |
2395 | HostStatus = DID_OK; | |
2396 | break; | |
2397 | case BusLogic_SCSISelectionTimeout: | |
2398 | HostStatus = DID_TIME_OUT; | |
2399 | break; | |
2400 | case BusLogic_InvalidOutgoingMailboxActionCode: | |
2401 | case BusLogic_InvalidCommandOperationCode: | |
2402 | case BusLogic_InvalidCommandParameter: | |
2403 | BusLogic_Warning("BusLogic Driver Protocol Error 0x%02X\n", HostAdapter, HostAdapterStatus); | |
2404 | case BusLogic_DataUnderRun: | |
2405 | case BusLogic_DataOverRun: | |
2406 | case BusLogic_UnexpectedBusFree: | |
2407 | case BusLogic_LinkedCCBhasInvalidLUN: | |
2408 | case BusLogic_AutoRequestSenseFailed: | |
2409 | case BusLogic_TaggedQueuingMessageRejected: | |
2410 | case BusLogic_UnsupportedMessageReceived: | |
2411 | case BusLogic_HostAdapterHardwareFailed: | |
2412 | case BusLogic_TargetDeviceReconnectedImproperly: | |
2413 | case BusLogic_AbortQueueGenerated: | |
2414 | case BusLogic_HostAdapterSoftwareError: | |
2415 | case BusLogic_HostAdapterHardwareTimeoutError: | |
2416 | case BusLogic_SCSIParityErrorDetected: | |
2417 | HostStatus = DID_ERROR; | |
2418 | break; | |
2419 | case BusLogic_InvalidBusPhaseRequested: | |
2420 | case BusLogic_TargetFailedResponseToATN: | |
2421 | case BusLogic_HostAdapterAssertedRST: | |
2422 | case BusLogic_OtherDeviceAssertedRST: | |
2423 | case BusLogic_HostAdapterAssertedBusDeviceReset: | |
2424 | HostStatus = DID_RESET; | |
2425 | break; | |
2426 | default: | |
2427 | BusLogic_Warning("Unknown Host Adapter Status 0x%02X\n", HostAdapter, HostAdapterStatus); | |
2428 | HostStatus = DID_ERROR; | |
2429 | break; | |
2430 | } | |
2431 | return (HostStatus << 16) | TargetDeviceStatus; | |
2432 | } | |
2433 | ||
2434 | ||
2435 | /* | |
2436 | BusLogic_ScanIncomingMailboxes scans the Incoming Mailboxes saving any | |
2437 | Incoming Mailbox entries for completion processing. | |
2438 | */ | |
2439 | ||
2440 | static void BusLogic_ScanIncomingMailboxes(struct BusLogic_HostAdapter *HostAdapter) | |
2441 | { | |
2442 | /* | |
2443 | Scan through the Incoming Mailboxes in Strict Round Robin fashion, saving | |
2444 | any completed CCBs for further processing. It is essential that for each | |
2445 | CCB and SCSI Command issued, command completion processing is performed | |
2446 | exactly once. Therefore, only Incoming Mailboxes with completion code | |
2447 | Command Completed Without Error, Command Completed With Error, or Command | |
2448 | Aborted At Host Request are saved for completion processing. When an | |
2449 | Incoming Mailbox has a completion code of Aborted Command Not Found, the | |
2450 | CCB had already completed or been aborted before the current Abort request | |
2451 | was processed, and so completion processing has already occurred and no | |
2452 | further action should be taken. | |
2453 | */ | |
2454 | struct BusLogic_IncomingMailbox *NextIncomingMailbox = HostAdapter->NextIncomingMailbox; | |
2455 | enum BusLogic_CompletionCode CompletionCode; | |
2456 | while ((CompletionCode = NextIncomingMailbox->CompletionCode) != BusLogic_IncomingMailboxFree) { | |
2457 | /* | |
2458 | We are only allowed to do this because we limit our architectures we | |
2459 | run on to machines where bus_to_virt() actually works. There *needs* | |
2460 | to be a dma_addr_to_virt() in the new PCI DMA mapping interface to | |
2461 | replace bus_to_virt() or else this code is going to become very | |
2462 | innefficient. | |
2463 | */ | |
2464 | struct BusLogic_CCB *CCB = (struct BusLogic_CCB *) Bus_to_Virtual(NextIncomingMailbox->CCB); | |
2465 | if (CompletionCode != BusLogic_AbortedCommandNotFound) { | |
2466 | if (CCB->Status == BusLogic_CCB_Active || CCB->Status == BusLogic_CCB_Reset) { | |
2467 | /* | |
2468 | Save the Completion Code for this CCB and queue the CCB | |
2469 | for completion processing. | |
2470 | */ | |
2471 | CCB->CompletionCode = CompletionCode; | |
2472 | BusLogic_QueueCompletedCCB(CCB); | |
2473 | } else { | |
2474 | /* | |
2475 | If a CCB ever appears in an Incoming Mailbox and is not marked | |
2476 | as status Active or Reset, then there is most likely a bug in | |
2477 | the Host Adapter firmware. | |
2478 | */ | |
2479 | BusLogic_Warning("Illegal CCB #%ld status %d in " "Incoming Mailbox\n", HostAdapter, CCB->SerialNumber, CCB->Status); | |
2480 | } | |
2481 | } | |
2482 | NextIncomingMailbox->CompletionCode = BusLogic_IncomingMailboxFree; | |
2483 | if (++NextIncomingMailbox > HostAdapter->LastIncomingMailbox) | |
2484 | NextIncomingMailbox = HostAdapter->FirstIncomingMailbox; | |
2485 | } | |
2486 | HostAdapter->NextIncomingMailbox = NextIncomingMailbox; | |
2487 | } | |
2488 | ||
2489 | ||
2490 | /* | |
2491 | BusLogic_ProcessCompletedCCBs iterates over the completed CCBs for Host | |
2492 | Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and | |
2493 | calling the SCSI Subsystem Completion Routines. The Host Adapter's Lock | |
2494 | should already have been acquired by the caller. | |
2495 | */ | |
2496 | ||
2497 | static void BusLogic_ProcessCompletedCCBs(struct BusLogic_HostAdapter *HostAdapter) | |
2498 | { | |
2499 | if (HostAdapter->ProcessCompletedCCBsActive) | |
2500 | return; | |
2501 | HostAdapter->ProcessCompletedCCBsActive = true; | |
2502 | while (HostAdapter->FirstCompletedCCB != NULL) { | |
2503 | struct BusLogic_CCB *CCB = HostAdapter->FirstCompletedCCB; | |
2504 | struct scsi_cmnd *Command = CCB->Command; | |
2505 | HostAdapter->FirstCompletedCCB = CCB->Next; | |
2506 | if (HostAdapter->FirstCompletedCCB == NULL) | |
2507 | HostAdapter->LastCompletedCCB = NULL; | |
2508 | /* | |
2509 | Process the Completed CCB. | |
2510 | */ | |
2511 | if (CCB->Opcode == BusLogic_BusDeviceReset) { | |
2512 | int TargetID = CCB->TargetID; | |
2513 | BusLogic_Warning("Bus Device Reset CCB #%ld to Target " "%d Completed\n", HostAdapter, CCB->SerialNumber, TargetID); | |
2514 | BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].BusDeviceResetsCompleted); | |
2515 | HostAdapter->TargetFlags[TargetID].TaggedQueuingActive = false; | |
2516 | HostAdapter->CommandsSinceReset[TargetID] = 0; | |
2517 | HostAdapter->LastResetCompleted[TargetID] = jiffies; | |
2518 | /* | |
2519 | Place CCB back on the Host Adapter's free list. | |
2520 | */ | |
2521 | BusLogic_DeallocateCCB(CCB); | |
2522 | #if 0 /* this needs to be redone different for new EH */ | |
2523 | /* | |
2524 | Bus Device Reset CCBs have the Command field non-NULL only when a | |
2525 | Bus Device Reset was requested for a Command that did not have a | |
2526 | currently active CCB in the Host Adapter (i.e., a Synchronous | |
2527 | Bus Device Reset), and hence would not have its Completion Routine | |
2528 | called otherwise. | |
2529 | */ | |
2530 | while (Command != NULL) { | |
2531 | struct scsi_cmnd *NextCommand = Command->reset_chain; | |
2532 | Command->reset_chain = NULL; | |
2533 | Command->result = DID_RESET << 16; | |
2534 | Command->scsi_done(Command); | |
2535 | Command = NextCommand; | |
2536 | } | |
2537 | #endif | |
2538 | /* | |
2539 | Iterate over the CCBs for this Host Adapter performing completion | |
2540 | processing for any CCBs marked as Reset for this Target. | |
2541 | */ | |
2542 | for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll) | |
2543 | if (CCB->Status == BusLogic_CCB_Reset && CCB->TargetID == TargetID) { | |
2544 | Command = CCB->Command; | |
2545 | BusLogic_DeallocateCCB(CCB); | |
2546 | HostAdapter->ActiveCommands[TargetID]--; | |
2547 | Command->result = DID_RESET << 16; | |
2548 | Command->scsi_done(Command); | |
2549 | } | |
2550 | HostAdapter->BusDeviceResetPendingCCB[TargetID] = NULL; | |
2551 | } else { | |
2552 | /* | |
2553 | Translate the Completion Code, Host Adapter Status, and Target | |
2554 | Device Status into a SCSI Subsystem Result Code. | |
2555 | */ | |
2556 | switch (CCB->CompletionCode) { | |
2557 | case BusLogic_IncomingMailboxFree: | |
2558 | case BusLogic_AbortedCommandNotFound: | |
2559 | case BusLogic_InvalidCCB: | |
2560 | BusLogic_Warning("CCB #%ld to Target %d Impossible State\n", HostAdapter, CCB->SerialNumber, CCB->TargetID); | |
2561 | break; | |
2562 | case BusLogic_CommandCompletedWithoutError: | |
2563 | HostAdapter->TargetStatistics[CCB->TargetID] | |
2564 | .CommandsCompleted++; | |
2565 | HostAdapter->TargetFlags[CCB->TargetID] | |
2566 | .CommandSuccessfulFlag = true; | |
2567 | Command->result = DID_OK << 16; | |
2568 | break; | |
2569 | case BusLogic_CommandAbortedAtHostRequest: | |
2570 | BusLogic_Warning("CCB #%ld to Target %d Aborted\n", HostAdapter, CCB->SerialNumber, CCB->TargetID); | |
2571 | BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[CCB->TargetID] | |
2572 | .CommandAbortsCompleted); | |
2573 | Command->result = DID_ABORT << 16; | |
2574 | break; | |
2575 | case BusLogic_CommandCompletedWithError: | |
2576 | Command->result = BusLogic_ComputeResultCode(HostAdapter, CCB->HostAdapterStatus, CCB->TargetDeviceStatus); | |
2577 | if (CCB->HostAdapterStatus != BusLogic_SCSISelectionTimeout) { | |
2578 | HostAdapter->TargetStatistics[CCB->TargetID] | |
2579 | .CommandsCompleted++; | |
2580 | if (BusLogic_GlobalOptions.TraceErrors) { | |
2581 | int i; | |
2582 | BusLogic_Notice("CCB #%ld Target %d: Result %X Host " | |
2583 | "Adapter Status %02X " "Target Status %02X\n", HostAdapter, CCB->SerialNumber, CCB->TargetID, Command->result, CCB->HostAdapterStatus, CCB->TargetDeviceStatus); | |
2584 | BusLogic_Notice("CDB ", HostAdapter); | |
2585 | for (i = 0; i < CCB->CDB_Length; i++) | |
2586 | BusLogic_Notice(" %02X", HostAdapter, CCB->CDB[i]); | |
2587 | BusLogic_Notice("\n", HostAdapter); | |
2588 | BusLogic_Notice("Sense ", HostAdapter); | |
2589 | for (i = 0; i < CCB->SenseDataLength; i++) | |
2590 | BusLogic_Notice(" %02X", HostAdapter, Command->sense_buffer[i]); | |
2591 | BusLogic_Notice("\n", HostAdapter); | |
2592 | } | |
2593 | } | |
2594 | break; | |
2595 | } | |
2596 | /* | |
2597 | When an INQUIRY command completes normally, save the | |
2598 | CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit | |
2599 | Wide Data Transfers Supported) bits. | |
2600 | */ | |
2601 | if (CCB->CDB[0] == INQUIRY && CCB->CDB[1] == 0 && CCB->HostAdapterStatus == BusLogic_CommandCompletedNormally) { | |
2602 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[CCB->TargetID]; | |
2603 | struct SCSI_Inquiry *InquiryResult = (struct SCSI_Inquiry *) Command->request_buffer; | |
2604 | TargetFlags->TargetExists = true; | |
2605 | TargetFlags->TaggedQueuingSupported = InquiryResult->CmdQue; | |
2606 | TargetFlags->WideTransfersSupported = InquiryResult->WBus16; | |
2607 | } | |
2608 | /* | |
2609 | Place CCB back on the Host Adapter's free list. | |
2610 | */ | |
2611 | BusLogic_DeallocateCCB(CCB); | |
2612 | /* | |
2613 | Call the SCSI Command Completion Routine. | |
2614 | */ | |
2615 | Command->scsi_done(Command); | |
2616 | } | |
2617 | } | |
2618 | HostAdapter->ProcessCompletedCCBsActive = false; | |
2619 | } | |
2620 | ||
2621 | ||
2622 | /* | |
2623 | BusLogic_InterruptHandler handles hardware interrupts from BusLogic Host | |
2624 | Adapters. | |
2625 | */ | |
2626 | ||
2627 | static irqreturn_t BusLogic_InterruptHandler(int IRQ_Channel, void *DeviceIdentifier, struct pt_regs *InterruptRegisters) | |
2628 | { | |
2629 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) DeviceIdentifier; | |
2630 | unsigned long ProcessorFlags; | |
2631 | /* | |
2632 | Acquire exclusive access to Host Adapter. | |
2633 | */ | |
2634 | spin_lock_irqsave(HostAdapter->SCSI_Host->host_lock, ProcessorFlags); | |
2635 | /* | |
2636 | Handle Interrupts appropriately for each Host Adapter type. | |
2637 | */ | |
2638 | if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) { | |
2639 | union BusLogic_InterruptRegister InterruptRegister; | |
2640 | /* | |
2641 | Read the Host Adapter Interrupt Register. | |
2642 | */ | |
2643 | InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter); | |
2644 | if (InterruptRegister.ir.InterruptValid) { | |
2645 | /* | |
2646 | Acknowledge the interrupt and reset the Host Adapter | |
2647 | Interrupt Register. | |
2648 | */ | |
2649 | BusLogic_InterruptReset(HostAdapter); | |
2650 | /* | |
2651 | Process valid External SCSI Bus Reset and Incoming Mailbox | |
2652 | Loaded Interrupts. Command Complete Interrupts are noted, | |
2653 | and Outgoing Mailbox Available Interrupts are ignored, as | |
2654 | they are never enabled. | |
2655 | */ | |
2656 | if (InterruptRegister.ir.ExternalBusReset) | |
2657 | HostAdapter->HostAdapterExternalReset = true; | |
2658 | else if (InterruptRegister.ir.IncomingMailboxLoaded) | |
2659 | BusLogic_ScanIncomingMailboxes(HostAdapter); | |
2660 | else if (InterruptRegister.ir.CommandComplete) | |
2661 | HostAdapter->HostAdapterCommandCompleted = true; | |
2662 | } | |
2663 | } else { | |
2664 | /* | |
2665 | Check if there is a pending interrupt for this Host Adapter. | |
2666 | */ | |
2667 | if (FlashPoint_InterruptPending(HostAdapter->CardHandle)) | |
2668 | switch (FlashPoint_HandleInterrupt(HostAdapter->CardHandle)) { | |
2669 | case FlashPoint_NormalInterrupt: | |
2670 | break; | |
2671 | case FlashPoint_ExternalBusReset: | |
2672 | HostAdapter->HostAdapterExternalReset = true; | |
2673 | break; | |
2674 | case FlashPoint_InternalError: | |
2675 | BusLogic_Warning("Internal FlashPoint Error detected" " - Resetting Host Adapter\n", HostAdapter); | |
2676 | HostAdapter->HostAdapterInternalError = true; | |
2677 | break; | |
2678 | } | |
2679 | } | |
2680 | /* | |
2681 | Process any completed CCBs. | |
2682 | */ | |
2683 | if (HostAdapter->FirstCompletedCCB != NULL) | |
2684 | BusLogic_ProcessCompletedCCBs(HostAdapter); | |
2685 | /* | |
2686 | Reset the Host Adapter if requested. | |
2687 | */ | |
2688 | if (HostAdapter->HostAdapterExternalReset) { | |
2689 | BusLogic_Warning("Resetting %s due to External SCSI Bus Reset\n", HostAdapter, HostAdapter->FullModelName); | |
2690 | BusLogic_IncrementErrorCounter(&HostAdapter->ExternalHostAdapterResets); | |
2691 | BusLogic_ResetHostAdapter(HostAdapter, false); | |
2692 | HostAdapter->HostAdapterExternalReset = false; | |
2693 | } else if (HostAdapter->HostAdapterInternalError) { | |
2694 | BusLogic_Warning("Resetting %s due to Host Adapter Internal Error\n", HostAdapter, HostAdapter->FullModelName); | |
2695 | BusLogic_IncrementErrorCounter(&HostAdapter->HostAdapterInternalErrors); | |
2696 | BusLogic_ResetHostAdapter(HostAdapter, true); | |
2697 | HostAdapter->HostAdapterInternalError = false; | |
2698 | } | |
2699 | /* | |
2700 | Release exclusive access to Host Adapter. | |
2701 | */ | |
2702 | spin_unlock_irqrestore(HostAdapter->SCSI_Host->host_lock, ProcessorFlags); | |
2703 | return IRQ_HANDLED; | |
2704 | } | |
2705 | ||
2706 | ||
2707 | /* | |
2708 | BusLogic_WriteOutgoingMailbox places CCB and Action Code into an Outgoing | |
2709 | Mailbox for execution by Host Adapter. The Host Adapter's Lock should | |
2710 | already have been acquired by the caller. | |
2711 | */ | |
2712 | ||
2713 | static boolean BusLogic_WriteOutgoingMailbox(struct BusLogic_HostAdapter | |
2714 | *HostAdapter, enum BusLogic_ActionCode ActionCode, struct BusLogic_CCB *CCB) | |
2715 | { | |
2716 | struct BusLogic_OutgoingMailbox *NextOutgoingMailbox; | |
2717 | NextOutgoingMailbox = HostAdapter->NextOutgoingMailbox; | |
2718 | if (NextOutgoingMailbox->ActionCode == BusLogic_OutgoingMailboxFree) { | |
2719 | CCB->Status = BusLogic_CCB_Active; | |
2720 | /* | |
2721 | The CCB field must be written before the Action Code field since | |
2722 | the Host Adapter is operating asynchronously and the locking code | |
2723 | does not protect against simultaneous access by the Host Adapter. | |
2724 | */ | |
2725 | NextOutgoingMailbox->CCB = CCB->DMA_Handle; | |
2726 | NextOutgoingMailbox->ActionCode = ActionCode; | |
2727 | BusLogic_StartMailboxCommand(HostAdapter); | |
2728 | if (++NextOutgoingMailbox > HostAdapter->LastOutgoingMailbox) | |
2729 | NextOutgoingMailbox = HostAdapter->FirstOutgoingMailbox; | |
2730 | HostAdapter->NextOutgoingMailbox = NextOutgoingMailbox; | |
2731 | if (ActionCode == BusLogic_MailboxStartCommand) { | |
2732 | HostAdapter->ActiveCommands[CCB->TargetID]++; | |
2733 | if (CCB->Opcode != BusLogic_BusDeviceReset) | |
2734 | HostAdapter->TargetStatistics[CCB->TargetID].CommandsAttempted++; | |
2735 | } | |
2736 | return true; | |
2737 | } | |
2738 | return false; | |
2739 | } | |
2740 | ||
2741 | /* Error Handling (EH) support */ | |
2742 | ||
2743 | static int BusLogic_host_reset(struct scsi_cmnd * SCpnt) | |
2744 | { | |
2745 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) SCpnt->device->host->hostdata; | |
2746 | ||
2747 | unsigned int id = SCpnt->device->id; | |
2748 | struct BusLogic_TargetStatistics *stats = &HostAdapter->TargetStatistics[id]; | |
df0ae249 JG |
2749 | int rc; |
2750 | ||
2751 | spin_lock_irq(SCpnt->device->host->host_lock); | |
2752 | ||
1da177e4 LT |
2753 | BusLogic_IncrementErrorCounter(&stats->HostAdapterResetsRequested); |
2754 | ||
df0ae249 JG |
2755 | rc = BusLogic_ResetHostAdapter(HostAdapter, false); |
2756 | spin_unlock_irq(SCpnt->device->host->host_lock); | |
2757 | return rc; | |
1da177e4 LT |
2758 | } |
2759 | ||
2760 | /* | |
2761 | BusLogic_QueueCommand creates a CCB for Command and places it into an | |
2762 | Outgoing Mailbox for execution by the associated Host Adapter. | |
2763 | */ | |
2764 | ||
2765 | static int BusLogic_QueueCommand(struct scsi_cmnd *Command, void (*CompletionRoutine) (struct scsi_cmnd *)) | |
2766 | { | |
2767 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Command->device->host->hostdata; | |
2768 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[Command->device->id]; | |
2769 | struct BusLogic_TargetStatistics *TargetStatistics = HostAdapter->TargetStatistics; | |
2770 | unsigned char *CDB = Command->cmnd; | |
2771 | int CDB_Length = Command->cmd_len; | |
2772 | int TargetID = Command->device->id; | |
2773 | int LogicalUnit = Command->device->lun; | |
2774 | void *BufferPointer = Command->request_buffer; | |
2775 | int BufferLength = Command->request_bufflen; | |
2776 | int SegmentCount = Command->use_sg; | |
2777 | struct BusLogic_CCB *CCB; | |
2778 | /* | |
2779 | SCSI REQUEST_SENSE commands will be executed automatically by the Host | |
2780 | Adapter for any errors, so they should not be executed explicitly unless | |
2781 | the Sense Data is zero indicating that no error occurred. | |
2782 | */ | |
2783 | if (CDB[0] == REQUEST_SENSE && Command->sense_buffer[0] != 0) { | |
2784 | Command->result = DID_OK << 16; | |
2785 | CompletionRoutine(Command); | |
2786 | return 0; | |
2787 | } | |
2788 | /* | |
2789 | Allocate a CCB from the Host Adapter's free list. In the unlikely event | |
2790 | that there are none available and memory allocation fails, wait 1 second | |
2791 | and try again. If that fails, the Host Adapter is probably hung so signal | |
2792 | an error as a Host Adapter Hard Reset should be initiated soon. | |
2793 | */ | |
2794 | CCB = BusLogic_AllocateCCB(HostAdapter); | |
2795 | if (CCB == NULL) { | |
2796 | spin_unlock_irq(HostAdapter->SCSI_Host->host_lock); | |
2797 | BusLogic_Delay(1); | |
2798 | spin_lock_irq(HostAdapter->SCSI_Host->host_lock); | |
2799 | CCB = BusLogic_AllocateCCB(HostAdapter); | |
2800 | if (CCB == NULL) { | |
2801 | Command->result = DID_ERROR << 16; | |
2802 | CompletionRoutine(Command); | |
2803 | return 0; | |
2804 | } | |
2805 | } | |
2806 | /* | |
2807 | Initialize the fields in the BusLogic Command Control Block (CCB). | |
2808 | */ | |
2809 | if (SegmentCount == 0 && BufferLength != 0) { | |
2810 | CCB->Opcode = BusLogic_InitiatorCCB; | |
2811 | CCB->DataLength = BufferLength; | |
2812 | CCB->DataPointer = pci_map_single(HostAdapter->PCI_Device, | |
2813 | BufferPointer, BufferLength, | |
2814 | Command->sc_data_direction); | |
2815 | } else if (SegmentCount != 0) { | |
2816 | struct scatterlist *ScatterList = (struct scatterlist *) BufferPointer; | |
2817 | int Segment, Count; | |
2818 | ||
2819 | Count = pci_map_sg(HostAdapter->PCI_Device, ScatterList, SegmentCount, | |
2820 | Command->sc_data_direction); | |
2821 | CCB->Opcode = BusLogic_InitiatorCCB_ScatterGather; | |
2822 | CCB->DataLength = Count * sizeof(struct BusLogic_ScatterGatherSegment); | |
2823 | if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) | |
2824 | CCB->DataPointer = (unsigned int) CCB->DMA_Handle + ((unsigned long) &CCB->ScatterGatherList - (unsigned long) CCB); | |
2825 | else | |
2826 | CCB->DataPointer = Virtual_to_32Bit_Virtual(CCB->ScatterGatherList); | |
2827 | for (Segment = 0; Segment < Count; Segment++) { | |
2828 | CCB->ScatterGatherList[Segment].SegmentByteCount = sg_dma_len(ScatterList + Segment); | |
2829 | CCB->ScatterGatherList[Segment].SegmentDataPointer = sg_dma_address(ScatterList + Segment); | |
2830 | } | |
2831 | } else { | |
2832 | CCB->Opcode = BusLogic_InitiatorCCB; | |
2833 | CCB->DataLength = BufferLength; | |
2834 | CCB->DataPointer = 0; | |
2835 | } | |
2836 | switch (CDB[0]) { | |
2837 | case READ_6: | |
2838 | case READ_10: | |
2839 | CCB->DataDirection = BusLogic_DataInLengthChecked; | |
2840 | TargetStatistics[TargetID].ReadCommands++; | |
2841 | BusLogic_IncrementByteCounter(&TargetStatistics[TargetID].TotalBytesRead, BufferLength); | |
2842 | BusLogic_IncrementSizeBucket(TargetStatistics[TargetID].ReadCommandSizeBuckets, BufferLength); | |
2843 | break; | |
2844 | case WRITE_6: | |
2845 | case WRITE_10: | |
2846 | CCB->DataDirection = BusLogic_DataOutLengthChecked; | |
2847 | TargetStatistics[TargetID].WriteCommands++; | |
2848 | BusLogic_IncrementByteCounter(&TargetStatistics[TargetID].TotalBytesWritten, BufferLength); | |
2849 | BusLogic_IncrementSizeBucket(TargetStatistics[TargetID].WriteCommandSizeBuckets, BufferLength); | |
2850 | break; | |
2851 | default: | |
2852 | CCB->DataDirection = BusLogic_UncheckedDataTransfer; | |
2853 | break; | |
2854 | } | |
2855 | CCB->CDB_Length = CDB_Length; | |
2856 | CCB->HostAdapterStatus = 0; | |
2857 | CCB->TargetDeviceStatus = 0; | |
2858 | CCB->TargetID = TargetID; | |
2859 | CCB->LogicalUnit = LogicalUnit; | |
2860 | CCB->TagEnable = false; | |
2861 | CCB->LegacyTagEnable = false; | |
2862 | /* | |
2863 | BusLogic recommends that after a Reset the first couple of commands that | |
2864 | are sent to a Target Device be sent in a non Tagged Queue fashion so that | |
2865 | the Host Adapter and Target Device can establish Synchronous and Wide | |
2866 | Transfer before Queue Tag messages can interfere with the Synchronous and | |
2867 | Wide Negotiation messages. By waiting to enable Tagged Queuing until after | |
2868 | the first BusLogic_MaxTaggedQueueDepth commands have been queued, it is | |
2869 | assured that after a Reset any pending commands are requeued before Tagged | |
2870 | Queuing is enabled and that the Tagged Queuing message will not occur while | |
2871 | the partition table is being printed. In addition, some devices do not | |
2872 | properly handle the transition from non-tagged to tagged commands, so it is | |
2873 | necessary to wait until there are no pending commands for a target device | |
2874 | before queuing tagged commands. | |
2875 | */ | |
2876 | if (HostAdapter->CommandsSinceReset[TargetID]++ >= | |
2877 | BusLogic_MaxTaggedQueueDepth && !TargetFlags->TaggedQueuingActive && HostAdapter->ActiveCommands[TargetID] == 0 && TargetFlags->TaggedQueuingSupported && (HostAdapter->TaggedQueuingPermitted & (1 << TargetID))) { | |
2878 | TargetFlags->TaggedQueuingActive = true; | |
2879 | BusLogic_Notice("Tagged Queuing now active for Target %d\n", HostAdapter, TargetID); | |
2880 | } | |
2881 | if (TargetFlags->TaggedQueuingActive) { | |
2882 | enum BusLogic_QueueTag QueueTag = BusLogic_SimpleQueueTag; | |
2883 | /* | |
2884 | When using Tagged Queuing with Simple Queue Tags, it appears that disk | |
2885 | drive controllers do not guarantee that a queued command will not | |
2886 | remain in a disconnected state indefinitely if commands that read or | |
2887 | write nearer the head position continue to arrive without interruption. | |
2888 | Therefore, for each Target Device this driver keeps track of the last | |
2889 | time either the queue was empty or an Ordered Queue Tag was issued. If | |
2890 | more than 4 seconds (one fifth of the 20 second disk timeout) have | |
2891 | elapsed since this last sequence point, this command will be issued | |
2892 | with an Ordered Queue Tag rather than a Simple Queue Tag, which forces | |
2893 | the Target Device to complete all previously queued commands before | |
2894 | this command may be executed. | |
2895 | */ | |
2896 | if (HostAdapter->ActiveCommands[TargetID] == 0) | |
2897 | HostAdapter->LastSequencePoint[TargetID] = jiffies; | |
2898 | else if (jiffies - HostAdapter->LastSequencePoint[TargetID] > 4 * HZ) { | |
2899 | HostAdapter->LastSequencePoint[TargetID] = jiffies; | |
2900 | QueueTag = BusLogic_OrderedQueueTag; | |
2901 | } | |
2902 | if (HostAdapter->ExtendedLUNSupport) { | |
2903 | CCB->TagEnable = true; | |
2904 | CCB->QueueTag = QueueTag; | |
2905 | } else { | |
2906 | CCB->LegacyTagEnable = true; | |
2907 | CCB->LegacyQueueTag = QueueTag; | |
2908 | } | |
2909 | } | |
2910 | memcpy(CCB->CDB, CDB, CDB_Length); | |
2911 | CCB->SenseDataLength = sizeof(Command->sense_buffer); | |
2912 | CCB->SenseDataPointer = pci_map_single(HostAdapter->PCI_Device, Command->sense_buffer, CCB->SenseDataLength, PCI_DMA_FROMDEVICE); | |
2913 | CCB->Command = Command; | |
2914 | Command->scsi_done = CompletionRoutine; | |
2915 | if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) { | |
2916 | /* | |
2917 | Place the CCB in an Outgoing Mailbox. The higher levels of the SCSI | |
2918 | Subsystem should not attempt to queue more commands than can be placed | |
2919 | in Outgoing Mailboxes, so there should always be one free. In the | |
2920 | unlikely event that there are none available, wait 1 second and try | |
2921 | again. If that fails, the Host Adapter is probably hung so signal an | |
2922 | error as a Host Adapter Hard Reset should be initiated soon. | |
2923 | */ | |
2924 | if (!BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxStartCommand, CCB)) { | |
2925 | spin_unlock_irq(HostAdapter->SCSI_Host->host_lock); | |
2926 | BusLogic_Warning("Unable to write Outgoing Mailbox - " "Pausing for 1 second\n", HostAdapter); | |
2927 | BusLogic_Delay(1); | |
2928 | spin_lock_irq(HostAdapter->SCSI_Host->host_lock); | |
2929 | if (!BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxStartCommand, CCB)) { | |
2930 | BusLogic_Warning("Still unable to write Outgoing Mailbox - " "Host Adapter Dead?\n", HostAdapter); | |
2931 | BusLogic_DeallocateCCB(CCB); | |
2932 | Command->result = DID_ERROR << 16; | |
2933 | Command->scsi_done(Command); | |
2934 | } | |
2935 | } | |
2936 | } else { | |
2937 | /* | |
2938 | Call the FlashPoint SCCB Manager to start execution of the CCB. | |
2939 | */ | |
2940 | CCB->Status = BusLogic_CCB_Active; | |
2941 | HostAdapter->ActiveCommands[TargetID]++; | |
2942 | TargetStatistics[TargetID].CommandsAttempted++; | |
2943 | FlashPoint_StartCCB(HostAdapter->CardHandle, CCB); | |
2944 | /* | |
2945 | The Command may have already completed and BusLogic_QueueCompletedCCB | |
2946 | been called, or it may still be pending. | |
2947 | */ | |
2948 | if (CCB->Status == BusLogic_CCB_Completed) | |
2949 | BusLogic_ProcessCompletedCCBs(HostAdapter); | |
2950 | } | |
2951 | return 0; | |
2952 | } | |
2953 | ||
2954 | ||
2955 | /* | |
2956 | BusLogic_AbortCommand aborts Command if possible. | |
2957 | */ | |
2958 | ||
2959 | static int BusLogic_AbortCommand(struct scsi_cmnd *Command) | |
2960 | { | |
2961 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Command->device->host->hostdata; | |
2962 | ||
2963 | int TargetID = Command->device->id; | |
2964 | struct BusLogic_CCB *CCB; | |
2965 | BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsRequested); | |
1da177e4 LT |
2966 | /* |
2967 | Attempt to find an Active CCB for this Command. If no Active CCB for this | |
2968 | Command is found, then no Abort is necessary. | |
2969 | */ | |
2970 | for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll) | |
2971 | if (CCB->Command == Command) | |
2972 | break; | |
2973 | if (CCB == NULL) { | |
2974 | BusLogic_Warning("Unable to Abort Command to Target %d - " "No CCB Found\n", HostAdapter, TargetID); | |
2975 | return SUCCESS; | |
2976 | } else if (CCB->Status == BusLogic_CCB_Completed) { | |
2977 | BusLogic_Warning("Unable to Abort Command to Target %d - " "CCB Completed\n", HostAdapter, TargetID); | |
2978 | return SUCCESS; | |
2979 | } else if (CCB->Status == BusLogic_CCB_Reset) { | |
2980 | BusLogic_Warning("Unable to Abort Command to Target %d - " "CCB Reset\n", HostAdapter, TargetID); | |
2981 | return SUCCESS; | |
2982 | } | |
2983 | if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) { | |
2984 | /* | |
2985 | Attempt to Abort this CCB. MultiMaster Firmware versions prior to 5.xx | |
2986 | do not generate Abort Tag messages, but only generate the non-tagged | |
2987 | Abort message. Since non-tagged commands are not sent by the Host | |
2988 | Adapter until the queue of outstanding tagged commands has completed, | |
2989 | and the Abort message is treated as a non-tagged command, it is | |
2990 | effectively impossible to abort commands when Tagged Queuing is active. | |
2991 | Firmware version 5.xx does generate Abort Tag messages, so it is | |
2992 | possible to abort commands when Tagged Queuing is active. | |
2993 | */ | |
2994 | if (HostAdapter->TargetFlags[TargetID].TaggedQueuingActive && HostAdapter->FirmwareVersion[0] < '5') { | |
2995 | BusLogic_Warning("Unable to Abort CCB #%ld to Target %d - " "Abort Tag Not Supported\n", HostAdapter, CCB->SerialNumber, TargetID); | |
2996 | return FAILURE; | |
2997 | } else if (BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxAbortCommand, CCB)) { | |
2998 | BusLogic_Warning("Aborting CCB #%ld to Target %d\n", HostAdapter, CCB->SerialNumber, TargetID); | |
2999 | BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsAttempted); | |
3000 | return SUCCESS; | |
3001 | } else { | |
3002 | BusLogic_Warning("Unable to Abort CCB #%ld to Target %d - " "No Outgoing Mailboxes\n", HostAdapter, CCB->SerialNumber, TargetID); | |
3003 | return FAILURE; | |
3004 | } | |
3005 | } else { | |
3006 | /* | |
3007 | Call the FlashPoint SCCB Manager to abort execution of the CCB. | |
3008 | */ | |
3009 | BusLogic_Warning("Aborting CCB #%ld to Target %d\n", HostAdapter, CCB->SerialNumber, TargetID); | |
3010 | BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsAttempted); | |
3011 | FlashPoint_AbortCCB(HostAdapter->CardHandle, CCB); | |
3012 | /* | |
3013 | The Abort may have already been completed and | |
3014 | BusLogic_QueueCompletedCCB been called, or it | |
3015 | may still be pending. | |
3016 | */ | |
3017 | if (CCB->Status == BusLogic_CCB_Completed) { | |
3018 | BusLogic_ProcessCompletedCCBs(HostAdapter); | |
3019 | } | |
3020 | return SUCCESS; | |
3021 | } | |
3022 | return SUCCESS; | |
3023 | } | |
3024 | ||
3025 | /* | |
3026 | BusLogic_ResetHostAdapter resets Host Adapter if possible, marking all | |
3027 | currently executing SCSI Commands as having been Reset. | |
3028 | */ | |
3029 | ||
3030 | static int BusLogic_ResetHostAdapter(struct BusLogic_HostAdapter *HostAdapter, boolean HardReset) | |
3031 | { | |
3032 | struct BusLogic_CCB *CCB; | |
3033 | int TargetID; | |
3034 | ||
3035 | /* | |
3036 | * Attempt to Reset and Reinitialize the Host Adapter. | |
3037 | */ | |
3038 | ||
3039 | if (!(BusLogic_HardwareResetHostAdapter(HostAdapter, HardReset) && BusLogic_InitializeHostAdapter(HostAdapter))) { | |
3040 | BusLogic_Error("Resetting %s Failed\n", HostAdapter, HostAdapter->FullModelName); | |
3041 | return FAILURE; | |
3042 | } | |
3043 | ||
3044 | /* | |
3045 | * Deallocate all currently executing CCBs. | |
3046 | */ | |
3047 | ||
3048 | for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll) | |
3049 | if (CCB->Status == BusLogic_CCB_Active) | |
3050 | BusLogic_DeallocateCCB(CCB); | |
3051 | /* | |
3052 | * Wait a few seconds between the Host Adapter Hard Reset which | |
3053 | * initiates a SCSI Bus Reset and issuing any SCSI Commands. Some | |
3054 | * SCSI devices get confused if they receive SCSI Commands too soon | |
3055 | * after a SCSI Bus Reset. | |
3056 | */ | |
3057 | ||
3058 | if (HardReset) { | |
3059 | spin_unlock_irq(HostAdapter->SCSI_Host->host_lock); | |
3060 | BusLogic_Delay(HostAdapter->BusSettleTime); | |
3061 | spin_lock_irq(HostAdapter->SCSI_Host->host_lock); | |
3062 | } | |
3063 | ||
3064 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { | |
3065 | HostAdapter->LastResetAttempted[TargetID] = jiffies; | |
3066 | HostAdapter->LastResetCompleted[TargetID] = jiffies; | |
3067 | } | |
3068 | return SUCCESS; | |
3069 | } | |
3070 | ||
3071 | /* | |
3072 | BusLogic_BIOSDiskParameters returns the Heads/Sectors/Cylinders BIOS Disk | |
3073 | Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and | |
3074 | the appropriate number of cylinders so as not to exceed drive capacity. In | |
3075 | order for disks equal to or larger than 1 GB to be addressable by the BIOS | |
3076 | without exceeding the BIOS limitation of 1024 cylinders, Extended Translation | |
3077 | may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C" | |
3078 | series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A" | |
3079 | series MultiMaster Host Adapters. With Extended Translation enabled, drives | |
3080 | between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128 | |
3081 | heads and 32 sectors, and drives above 2 GB inclusive are given a disk | |
3082 | geometry of 255 heads and 63 sectors. However, if the BIOS detects that the | |
3083 | Extended Translation setting does not match the geometry in the partition | |
3084 | table, then the translation inferred from the partition table will be used by | |
3085 | the BIOS, and a warning may be displayed. | |
3086 | */ | |
3087 | ||
3088 | static int BusLogic_BIOSDiskParameters(struct scsi_device *sdev, struct block_device *Device, sector_t capacity, int *Parameters) | |
3089 | { | |
3090 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) sdev->host->hostdata; | |
3091 | struct BIOS_DiskParameters *DiskParameters = (struct BIOS_DiskParameters *) Parameters; | |
3092 | unsigned char *buf; | |
3093 | if (HostAdapter->ExtendedTranslationEnabled && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */ ) { | |
3094 | if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */ ) { | |
3095 | DiskParameters->Heads = 255; | |
3096 | DiskParameters->Sectors = 63; | |
3097 | } else { | |
3098 | DiskParameters->Heads = 128; | |
3099 | DiskParameters->Sectors = 32; | |
3100 | } | |
3101 | } else { | |
3102 | DiskParameters->Heads = 64; | |
3103 | DiskParameters->Sectors = 32; | |
3104 | } | |
3105 | DiskParameters->Cylinders = (unsigned long) capacity / (DiskParameters->Heads * DiskParameters->Sectors); | |
3106 | buf = scsi_bios_ptable(Device); | |
3107 | if (buf == NULL) | |
3108 | return 0; | |
3109 | /* | |
3110 | If the boot sector partition table flag is valid, search for a partition | |
3111 | table entry whose end_head matches one of the standard BusLogic geometry | |
3112 | translations (64/32, 128/32, or 255/63). | |
3113 | */ | |
3114 | if (*(unsigned short *) (buf + 64) == 0xAA55) { | |
3115 | struct partition *FirstPartitionEntry = (struct partition *) buf; | |
3116 | struct partition *PartitionEntry = FirstPartitionEntry; | |
3117 | int SavedCylinders = DiskParameters->Cylinders, PartitionNumber; | |
3118 | unsigned char PartitionEntryEndHead = 0, PartitionEntryEndSector = 0; | |
3119 | for (PartitionNumber = 0; PartitionNumber < 4; PartitionNumber++) { | |
3120 | PartitionEntryEndHead = PartitionEntry->end_head; | |
3121 | PartitionEntryEndSector = PartitionEntry->end_sector & 0x3F; | |
3122 | if (PartitionEntryEndHead == 64 - 1) { | |
3123 | DiskParameters->Heads = 64; | |
3124 | DiskParameters->Sectors = 32; | |
3125 | break; | |
3126 | } else if (PartitionEntryEndHead == 128 - 1) { | |
3127 | DiskParameters->Heads = 128; | |
3128 | DiskParameters->Sectors = 32; | |
3129 | break; | |
3130 | } else if (PartitionEntryEndHead == 255 - 1) { | |
3131 | DiskParameters->Heads = 255; | |
3132 | DiskParameters->Sectors = 63; | |
3133 | break; | |
3134 | } | |
3135 | PartitionEntry++; | |
3136 | } | |
3137 | if (PartitionNumber == 4) { | |
3138 | PartitionEntryEndHead = FirstPartitionEntry->end_head; | |
3139 | PartitionEntryEndSector = FirstPartitionEntry->end_sector & 0x3F; | |
3140 | } | |
3141 | DiskParameters->Cylinders = (unsigned long) capacity / (DiskParameters->Heads * DiskParameters->Sectors); | |
3142 | if (PartitionNumber < 4 && PartitionEntryEndSector == DiskParameters->Sectors) { | |
3143 | if (DiskParameters->Cylinders != SavedCylinders) | |
3144 | BusLogic_Warning("Adopting Geometry %d/%d from Partition Table\n", HostAdapter, DiskParameters->Heads, DiskParameters->Sectors); | |
3145 | } else if (PartitionEntryEndHead > 0 || PartitionEntryEndSector > 0) { | |
3146 | BusLogic_Warning("Warning: Partition Table appears to " "have Geometry %d/%d which is\n", HostAdapter, PartitionEntryEndHead + 1, PartitionEntryEndSector); | |
3147 | BusLogic_Warning("not compatible with current BusLogic " "Host Adapter Geometry %d/%d\n", HostAdapter, DiskParameters->Heads, DiskParameters->Sectors); | |
3148 | } | |
3149 | } | |
3150 | kfree(buf); | |
3151 | return 0; | |
3152 | } | |
3153 | ||
3154 | ||
3155 | /* | |
3156 | BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>. | |
3157 | */ | |
3158 | ||
3159 | static int BusLogic_ProcDirectoryInfo(struct Scsi_Host *shost, char *ProcBuffer, char **StartPointer, off_t Offset, int BytesAvailable, int WriteFlag) | |
3160 | { | |
3161 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) shost->hostdata; | |
3162 | struct BusLogic_TargetStatistics *TargetStatistics; | |
3163 | int TargetID, Length; | |
3164 | char *Buffer; | |
3165 | ||
3166 | TargetStatistics = HostAdapter->TargetStatistics; | |
3167 | if (WriteFlag) { | |
3168 | HostAdapter->ExternalHostAdapterResets = 0; | |
3169 | HostAdapter->HostAdapterInternalErrors = 0; | |
3170 | memset(TargetStatistics, 0, BusLogic_MaxTargetDevices * sizeof(struct BusLogic_TargetStatistics)); | |
3171 | return 0; | |
3172 | } | |
3173 | Buffer = HostAdapter->MessageBuffer; | |
3174 | Length = HostAdapter->MessageBufferLength; | |
3175 | Length += sprintf(&Buffer[Length], "\n\ | |
3176 | Current Driver Queue Depth: %d\n\ | |
3177 | Currently Allocated CCBs: %d\n", HostAdapter->DriverQueueDepth, HostAdapter->AllocatedCCBs); | |
3178 | Length += sprintf(&Buffer[Length], "\n\n\ | |
3179 | DATA TRANSFER STATISTICS\n\ | |
3180 | \n\ | |
3181 | Target Tagged Queuing Queue Depth Active Attempted Completed\n\ | |
3182 | ====== ============== =========== ====== ========= =========\n"); | |
3183 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { | |
3184 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; | |
3185 | if (!TargetFlags->TargetExists) | |
3186 | continue; | |
3187 | Length += sprintf(&Buffer[Length], " %2d %s", TargetID, (TargetFlags->TaggedQueuingSupported ? (TargetFlags->TaggedQueuingActive ? " Active" : (HostAdapter->TaggedQueuingPermitted & (1 << TargetID) | |
3188 | ? " Permitted" : " Disabled")) | |
3189 | : "Not Supported")); | |
3190 | Length += sprintf(&Buffer[Length], | |
3191 | " %3d %3u %9u %9u\n", HostAdapter->QueueDepth[TargetID], HostAdapter->ActiveCommands[TargetID], TargetStatistics[TargetID].CommandsAttempted, TargetStatistics[TargetID].CommandsCompleted); | |
3192 | } | |
3193 | Length += sprintf(&Buffer[Length], "\n\ | |
3194 | Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\ | |
3195 | ====== ============= ============== =================== ===================\n"); | |
3196 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { | |
3197 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; | |
3198 | if (!TargetFlags->TargetExists) | |
3199 | continue; | |
3200 | Length += sprintf(&Buffer[Length], " %2d %9u %9u", TargetID, TargetStatistics[TargetID].ReadCommands, TargetStatistics[TargetID].WriteCommands); | |
3201 | if (TargetStatistics[TargetID].TotalBytesRead.Billions > 0) | |
3202 | Length += sprintf(&Buffer[Length], " %9u%09u", TargetStatistics[TargetID].TotalBytesRead.Billions, TargetStatistics[TargetID].TotalBytesRead.Units); | |
3203 | else | |
3204 | Length += sprintf(&Buffer[Length], " %9u", TargetStatistics[TargetID].TotalBytesRead.Units); | |
3205 | if (TargetStatistics[TargetID].TotalBytesWritten.Billions > 0) | |
3206 | Length += sprintf(&Buffer[Length], " %9u%09u\n", TargetStatistics[TargetID].TotalBytesWritten.Billions, TargetStatistics[TargetID].TotalBytesWritten.Units); | |
3207 | else | |
3208 | Length += sprintf(&Buffer[Length], " %9u\n", TargetStatistics[TargetID].TotalBytesWritten.Units); | |
3209 | } | |
3210 | Length += sprintf(&Buffer[Length], "\n\ | |
3211 | Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\ | |
3212 | ====== ======= ========= ========= ========= ========= =========\n"); | |
3213 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { | |
3214 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; | |
3215 | if (!TargetFlags->TargetExists) | |
3216 | continue; | |
3217 | Length += | |
3218 | sprintf(&Buffer[Length], | |
3219 | " %2d Read %9u %9u %9u %9u %9u\n", TargetID, | |
3220 | TargetStatistics[TargetID].ReadCommandSizeBuckets[0], | |
3221 | TargetStatistics[TargetID].ReadCommandSizeBuckets[1], TargetStatistics[TargetID].ReadCommandSizeBuckets[2], TargetStatistics[TargetID].ReadCommandSizeBuckets[3], TargetStatistics[TargetID].ReadCommandSizeBuckets[4]); | |
3222 | Length += | |
3223 | sprintf(&Buffer[Length], | |
3224 | " %2d Write %9u %9u %9u %9u %9u\n", TargetID, | |
3225 | TargetStatistics[TargetID].WriteCommandSizeBuckets[0], | |
3226 | TargetStatistics[TargetID].WriteCommandSizeBuckets[1], TargetStatistics[TargetID].WriteCommandSizeBuckets[2], TargetStatistics[TargetID].WriteCommandSizeBuckets[3], TargetStatistics[TargetID].WriteCommandSizeBuckets[4]); | |
3227 | } | |
3228 | Length += sprintf(&Buffer[Length], "\n\ | |
3229 | Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\ | |
3230 | ====== ======= ========= ========= ========= ========= =========\n"); | |
3231 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { | |
3232 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; | |
3233 | if (!TargetFlags->TargetExists) | |
3234 | continue; | |
3235 | Length += | |
3236 | sprintf(&Buffer[Length], | |
3237 | " %2d Read %9u %9u %9u %9u %9u\n", TargetID, | |
3238 | TargetStatistics[TargetID].ReadCommandSizeBuckets[5], | |
3239 | TargetStatistics[TargetID].ReadCommandSizeBuckets[6], TargetStatistics[TargetID].ReadCommandSizeBuckets[7], TargetStatistics[TargetID].ReadCommandSizeBuckets[8], TargetStatistics[TargetID].ReadCommandSizeBuckets[9]); | |
3240 | Length += | |
3241 | sprintf(&Buffer[Length], | |
3242 | " %2d Write %9u %9u %9u %9u %9u\n", TargetID, | |
3243 | TargetStatistics[TargetID].WriteCommandSizeBuckets[5], | |
3244 | TargetStatistics[TargetID].WriteCommandSizeBuckets[6], TargetStatistics[TargetID].WriteCommandSizeBuckets[7], TargetStatistics[TargetID].WriteCommandSizeBuckets[8], TargetStatistics[TargetID].WriteCommandSizeBuckets[9]); | |
3245 | } | |
3246 | Length += sprintf(&Buffer[Length], "\n\n\ | |
3247 | ERROR RECOVERY STATISTICS\n\ | |
3248 | \n\ | |
3249 | Command Aborts Bus Device Resets Host Adapter Resets\n\ | |
3250 | Target Requested Completed Requested Completed Requested Completed\n\ | |
3251 | ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\ | |
3252 | ====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n"); | |
3253 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { | |
3254 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; | |
3255 | if (!TargetFlags->TargetExists) | |
3256 | continue; | |
3257 | Length += sprintf(&Buffer[Length], "\ | |
3258 | %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); | |
3259 | } | |
3260 | Length += sprintf(&Buffer[Length], "\nExternal Host Adapter Resets: %d\n", HostAdapter->ExternalHostAdapterResets); | |
3261 | Length += sprintf(&Buffer[Length], "Host Adapter Internal Errors: %d\n", HostAdapter->HostAdapterInternalErrors); | |
3262 | if (Length >= BusLogic_MessageBufferSize) | |
3263 | BusLogic_Error("Message Buffer length %d exceeds size %d\n", HostAdapter, Length, BusLogic_MessageBufferSize); | |
3264 | if ((Length -= Offset) <= 0) | |
3265 | return 0; | |
3266 | if (Length >= BytesAvailable) | |
3267 | Length = BytesAvailable; | |
3268 | memcpy(ProcBuffer, HostAdapter->MessageBuffer + Offset, Length); | |
3269 | *StartPointer = ProcBuffer; | |
3270 | return Length; | |
3271 | } | |
3272 | ||
3273 | ||
3274 | /* | |
3275 | BusLogic_Message prints Driver Messages. | |
3276 | */ | |
3277 | ||
3278 | static void BusLogic_Message(enum BusLogic_MessageLevel MessageLevel, char *Format, struct BusLogic_HostAdapter *HostAdapter, ...) | |
3279 | { | |
3280 | static char Buffer[BusLogic_LineBufferSize]; | |
3281 | static boolean BeginningOfLine = true; | |
3282 | va_list Arguments; | |
3283 | int Length = 0; | |
3284 | va_start(Arguments, HostAdapter); | |
3285 | Length = vsprintf(Buffer, Format, Arguments); | |
3286 | va_end(Arguments); | |
3287 | if (MessageLevel == BusLogic_AnnounceLevel) { | |
3288 | static int AnnouncementLines = 0; | |
3289 | strcpy(&HostAdapter->MessageBuffer[HostAdapter->MessageBufferLength], Buffer); | |
3290 | HostAdapter->MessageBufferLength += Length; | |
3291 | if (++AnnouncementLines <= 2) | |
3292 | printk("%sscsi: %s", BusLogic_MessageLevelMap[MessageLevel], Buffer); | |
3293 | } else if (MessageLevel == BusLogic_InfoLevel) { | |
3294 | strcpy(&HostAdapter->MessageBuffer[HostAdapter->MessageBufferLength], Buffer); | |
3295 | HostAdapter->MessageBufferLength += Length; | |
3296 | if (BeginningOfLine) { | |
3297 | if (Buffer[0] != '\n' || Length > 1) | |
3298 | printk("%sscsi%d: %s", BusLogic_MessageLevelMap[MessageLevel], HostAdapter->HostNumber, Buffer); | |
3299 | } else | |
3300 | printk("%s", Buffer); | |
3301 | } else { | |
3302 | if (BeginningOfLine) { | |
3303 | if (HostAdapter != NULL && HostAdapter->HostAdapterInitialized) | |
3304 | printk("%sscsi%d: %s", BusLogic_MessageLevelMap[MessageLevel], HostAdapter->HostNumber, Buffer); | |
3305 | else | |
3306 | printk("%s%s", BusLogic_MessageLevelMap[MessageLevel], Buffer); | |
3307 | } else | |
3308 | printk("%s", Buffer); | |
3309 | } | |
3310 | BeginningOfLine = (Buffer[Length - 1] == '\n'); | |
3311 | } | |
3312 | ||
3313 | ||
3314 | /* | |
3315 | BusLogic_ParseKeyword parses an individual option keyword. It returns true | |
3316 | and updates the pointer if the keyword is recognized and false otherwise. | |
3317 | */ | |
3318 | ||
3319 | static boolean __init BusLogic_ParseKeyword(char **StringPointer, char *Keyword) | |
3320 | { | |
3321 | char *Pointer = *StringPointer; | |
3322 | while (*Keyword != '\0') { | |
3323 | char StringChar = *Pointer++; | |
3324 | char KeywordChar = *Keyword++; | |
3325 | if (StringChar >= 'A' && StringChar <= 'Z') | |
3326 | StringChar += 'a' - 'Z'; | |
3327 | if (KeywordChar >= 'A' && KeywordChar <= 'Z') | |
3328 | KeywordChar += 'a' - 'Z'; | |
3329 | if (StringChar != KeywordChar) | |
3330 | return false; | |
3331 | } | |
3332 | *StringPointer = Pointer; | |
3333 | return true; | |
3334 | } | |
3335 | ||
3336 | ||
3337 | /* | |
3338 | BusLogic_ParseDriverOptions handles processing of BusLogic Driver Options | |
3339 | specifications. | |
3340 | ||
3341 | BusLogic Driver Options may be specified either via the Linux Kernel Command | |
3342 | Line or via the Loadable Kernel Module Installation Facility. Driver Options | |
3343 | for multiple host adapters may be specified either by separating the option | |
3344 | strings by a semicolon, or by specifying multiple "BusLogic=" strings on the | |
3345 | command line. Individual option specifications for a single host adapter are | |
3346 | separated by commas. The Probing and Debugging Options apply to all host | |
3347 | adapters whereas the remaining options apply individually only to the | |
3348 | selected host adapter. | |
3349 | ||
3350 | The BusLogic Driver Probing Options are described in | |
3351 | <file:Documentation/scsi/BusLogic.txt>. | |
3352 | */ | |
3353 | ||
3354 | static int __init BusLogic_ParseDriverOptions(char *OptionsString) | |
3355 | { | |
3356 | while (true) { | |
3357 | struct BusLogic_DriverOptions *DriverOptions = &BusLogic_DriverOptions[BusLogic_DriverOptionsCount++]; | |
3358 | int TargetID; | |
3359 | memset(DriverOptions, 0, sizeof(struct BusLogic_DriverOptions)); | |
3360 | while (*OptionsString != '\0' && *OptionsString != ';') { | |
3361 | /* Probing Options. */ | |
3362 | if (BusLogic_ParseKeyword(&OptionsString, "IO:")) { | |
3363 | unsigned long IO_Address = simple_strtoul(OptionsString, &OptionsString, 0); | |
3364 | BusLogic_ProbeOptions.LimitedProbeISA = true; | |
3365 | switch (IO_Address) { | |
3366 | case 0x330: | |
3367 | BusLogic_ProbeOptions.Probe330 = true; | |
3368 | break; | |
3369 | case 0x334: | |
3370 | BusLogic_ProbeOptions.Probe334 = true; | |
3371 | break; | |
3372 | case 0x230: | |
3373 | BusLogic_ProbeOptions.Probe230 = true; | |
3374 | break; | |
3375 | case 0x234: | |
3376 | BusLogic_ProbeOptions.Probe234 = true; | |
3377 | break; | |
3378 | case 0x130: | |
3379 | BusLogic_ProbeOptions.Probe130 = true; | |
3380 | break; | |
3381 | case 0x134: | |
3382 | BusLogic_ProbeOptions.Probe134 = true; | |
3383 | break; | |
3384 | default: | |
3385 | BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid I/O Address 0x%X)\n", NULL, IO_Address); | |
3386 | return 0; | |
3387 | } | |
3388 | } else if (BusLogic_ParseKeyword(&OptionsString, "NoProbeISA")) | |
3389 | BusLogic_ProbeOptions.NoProbeISA = true; | |
3390 | else if (BusLogic_ParseKeyword(&OptionsString, "NoProbePCI")) | |
3391 | BusLogic_ProbeOptions.NoProbePCI = true; | |
3392 | else if (BusLogic_ParseKeyword(&OptionsString, "NoProbe")) | |
3393 | BusLogic_ProbeOptions.NoProbe = true; | |
3394 | else if (BusLogic_ParseKeyword(&OptionsString, "NoSortPCI")) | |
3395 | BusLogic_ProbeOptions.NoSortPCI = true; | |
3396 | else if (BusLogic_ParseKeyword(&OptionsString, "MultiMasterFirst")) | |
3397 | BusLogic_ProbeOptions.MultiMasterFirst = true; | |
3398 | else if (BusLogic_ParseKeyword(&OptionsString, "FlashPointFirst")) | |
3399 | BusLogic_ProbeOptions.FlashPointFirst = true; | |
3400 | /* Tagged Queuing Options. */ | |
3401 | else if (BusLogic_ParseKeyword(&OptionsString, "QueueDepth:[") || BusLogic_ParseKeyword(&OptionsString, "QD:[")) { | |
3402 | for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) { | |
3403 | unsigned short QueueDepth = simple_strtoul(OptionsString, &OptionsString, 0); | |
3404 | if (QueueDepth > BusLogic_MaxTaggedQueueDepth) { | |
3405 | BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, QueueDepth); | |
3406 | return 0; | |
3407 | } | |
3408 | DriverOptions->QueueDepth[TargetID] = QueueDepth; | |
3409 | if (*OptionsString == ',') | |
3410 | OptionsString++; | |
3411 | else if (*OptionsString == ']') | |
3412 | break; | |
3413 | else { | |
3414 | BusLogic_Error("BusLogic: Invalid Driver Options " "(',' or ']' expected at '%s')\n", NULL, OptionsString); | |
3415 | return 0; | |
3416 | } | |
3417 | } | |
3418 | if (*OptionsString != ']') { | |
3419 | BusLogic_Error("BusLogic: Invalid Driver Options " "(']' expected at '%s')\n", NULL, OptionsString); | |
3420 | return 0; | |
3421 | } else | |
3422 | OptionsString++; | |
3423 | } else if (BusLogic_ParseKeyword(&OptionsString, "QueueDepth:") || BusLogic_ParseKeyword(&OptionsString, "QD:")) { | |
3424 | unsigned short QueueDepth = simple_strtoul(OptionsString, &OptionsString, 0); | |
3425 | if (QueueDepth == 0 || QueueDepth > BusLogic_MaxTaggedQueueDepth) { | |
3426 | BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, QueueDepth); | |
3427 | return 0; | |
3428 | } | |
3429 | DriverOptions->CommonQueueDepth = QueueDepth; | |
3430 | for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) | |
3431 | DriverOptions->QueueDepth[TargetID] = QueueDepth; | |
3432 | } else if (BusLogic_ParseKeyword(&OptionsString, "TaggedQueuing:") || BusLogic_ParseKeyword(&OptionsString, "TQ:")) { | |
3433 | if (BusLogic_ParseKeyword(&OptionsString, "Default")) { | |
3434 | DriverOptions->TaggedQueuingPermitted = 0x0000; | |
3435 | DriverOptions->TaggedQueuingPermittedMask = 0x0000; | |
3436 | } else if (BusLogic_ParseKeyword(&OptionsString, "Enable")) { | |
3437 | DriverOptions->TaggedQueuingPermitted = 0xFFFF; | |
3438 | DriverOptions->TaggedQueuingPermittedMask = 0xFFFF; | |
3439 | } else if (BusLogic_ParseKeyword(&OptionsString, "Disable")) { | |
3440 | DriverOptions->TaggedQueuingPermitted = 0x0000; | |
3441 | DriverOptions->TaggedQueuingPermittedMask = 0xFFFF; | |
3442 | } else { | |
3443 | unsigned short TargetBit; | |
3444 | for (TargetID = 0, TargetBit = 1; TargetID < BusLogic_MaxTargetDevices; TargetID++, TargetBit <<= 1) | |
3445 | switch (*OptionsString++) { | |
3446 | case 'Y': | |
3447 | DriverOptions->TaggedQueuingPermitted |= TargetBit; | |
3448 | DriverOptions->TaggedQueuingPermittedMask |= TargetBit; | |
3449 | break; | |
3450 | case 'N': | |
3451 | DriverOptions->TaggedQueuingPermitted &= ~TargetBit; | |
3452 | DriverOptions->TaggedQueuingPermittedMask |= TargetBit; | |
3453 | break; | |
3454 | case 'X': | |
3455 | break; | |
3456 | default: | |
3457 | OptionsString--; | |
3458 | TargetID = BusLogic_MaxTargetDevices; | |
3459 | break; | |
3460 | } | |
3461 | } | |
3462 | } | |
3463 | /* Miscellaneous Options. */ | |
3464 | else if (BusLogic_ParseKeyword(&OptionsString, "BusSettleTime:") || BusLogic_ParseKeyword(&OptionsString, "BST:")) { | |
3465 | unsigned short BusSettleTime = simple_strtoul(OptionsString, &OptionsString, 0); | |
3466 | if (BusSettleTime > 5 * 60) { | |
3467 | BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Bus Settle Time %d)\n", NULL, BusSettleTime); | |
3468 | return 0; | |
3469 | } | |
3470 | DriverOptions->BusSettleTime = BusSettleTime; | |
3471 | } else if (BusLogic_ParseKeyword(&OptionsString, "InhibitTargetInquiry")) | |
3472 | DriverOptions->LocalOptions.InhibitTargetInquiry = true; | |
3473 | /* Debugging Options. */ | |
3474 | else if (BusLogic_ParseKeyword(&OptionsString, "TraceProbe")) | |
3475 | BusLogic_GlobalOptions.TraceProbe = true; | |
3476 | else if (BusLogic_ParseKeyword(&OptionsString, "TraceHardwareReset")) | |
3477 | BusLogic_GlobalOptions.TraceHardwareReset = true; | |
3478 | else if (BusLogic_ParseKeyword(&OptionsString, "TraceConfiguration")) | |
3479 | BusLogic_GlobalOptions.TraceConfiguration = true; | |
3480 | else if (BusLogic_ParseKeyword(&OptionsString, "TraceErrors")) | |
3481 | BusLogic_GlobalOptions.TraceErrors = true; | |
3482 | else if (BusLogic_ParseKeyword(&OptionsString, "Debug")) { | |
3483 | BusLogic_GlobalOptions.TraceProbe = true; | |
3484 | BusLogic_GlobalOptions.TraceHardwareReset = true; | |
3485 | BusLogic_GlobalOptions.TraceConfiguration = true; | |
3486 | BusLogic_GlobalOptions.TraceErrors = true; | |
3487 | } | |
3488 | if (*OptionsString == ',') | |
3489 | OptionsString++; | |
3490 | else if (*OptionsString != ';' && *OptionsString != '\0') { | |
3491 | BusLogic_Error("BusLogic: Unexpected Driver Option '%s' " "ignored\n", NULL, OptionsString); | |
3492 | *OptionsString = '\0'; | |
3493 | } | |
3494 | } | |
3495 | if (!(BusLogic_DriverOptionsCount == 0 || BusLogic_ProbeInfoCount == 0 || BusLogic_DriverOptionsCount == BusLogic_ProbeInfoCount)) { | |
3496 | BusLogic_Error("BusLogic: Invalid Driver Options " "(all or no I/O Addresses must be specified)\n", NULL); | |
3497 | return 0; | |
3498 | } | |
3499 | /* | |
3500 | Tagged Queuing is disabled when the Queue Depth is 1 since queuing | |
3501 | multiple commands is not possible. | |
3502 | */ | |
3503 | for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) | |
3504 | if (DriverOptions->QueueDepth[TargetID] == 1) { | |
3505 | unsigned short TargetBit = 1 << TargetID; | |
3506 | DriverOptions->TaggedQueuingPermitted &= ~TargetBit; | |
3507 | DriverOptions->TaggedQueuingPermittedMask |= TargetBit; | |
3508 | } | |
3509 | if (*OptionsString == ';') | |
3510 | OptionsString++; | |
3511 | if (*OptionsString == '\0') | |
3512 | return 0; | |
3513 | } | |
3514 | return 1; | |
3515 | } | |
3516 | ||
3517 | /* | |
3518 | Get it all started | |
3519 | */ | |
3520 | ||
3521 | static struct scsi_host_template Bus_Logic_template = { | |
3522 | .module = THIS_MODULE, | |
3523 | .proc_name = "BusLogic", | |
3524 | .proc_info = BusLogic_ProcDirectoryInfo, | |
3525 | .name = "BusLogic", | |
3526 | .info = BusLogic_DriverInfo, | |
3527 | .queuecommand = BusLogic_QueueCommand, | |
3528 | .slave_configure = BusLogic_SlaveConfigure, | |
3529 | .bios_param = BusLogic_BIOSDiskParameters, | |
3530 | .eh_host_reset_handler = BusLogic_host_reset, | |
3531 | #if 0 | |
3532 | .eh_abort_handler = BusLogic_AbortCommand, | |
3533 | #endif | |
3534 | .unchecked_isa_dma = 1, | |
3535 | .max_sectors = 128, | |
3536 | .use_clustering = ENABLE_CLUSTERING, | |
3537 | }; | |
3538 | ||
3539 | /* | |
3540 | BusLogic_Setup handles processing of Kernel Command Line Arguments. | |
3541 | */ | |
3542 | ||
3543 | static int __init BusLogic_Setup(char *str) | |
3544 | { | |
3545 | int ints[3]; | |
3546 | ||
3547 | (void) get_options(str, ARRAY_SIZE(ints), ints); | |
3548 | ||
3549 | if (ints[0] != 0) { | |
3550 | BusLogic_Error("BusLogic: Obsolete Command Line Entry " "Format Ignored\n", NULL); | |
3551 | return 0; | |
3552 | } | |
3553 | if (str == NULL || *str == '\0') | |
3554 | return 0; | |
3555 | return BusLogic_ParseDriverOptions(str); | |
3556 | } | |
3557 | ||
3558 | /* | |
3559 | * Exit function. Deletes all hosts associated with this driver. | |
3560 | */ | |
3561 | ||
3562 | static void __exit BusLogic_exit(void) | |
3563 | { | |
3564 | struct BusLogic_HostAdapter *ha, *next; | |
3565 | ||
3566 | list_for_each_entry_safe(ha, next, &BusLogic_host_list, host_list) | |
3567 | BusLogic_ReleaseHostAdapter(ha); | |
3568 | } | |
3569 | ||
3570 | __setup("BusLogic=", BusLogic_Setup); | |
3571 | ||
3572 | module_init(BusLogic_init); | |
3573 | module_exit(BusLogic_exit); |