Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Marcelo Feitoza Parisi | 60c904a | 2006-03-28 01:56:47 -0800 | [diff] [blame] | 44 | #include <linux/jiffies.h> |
Matthias Gehre | 910638a | 2006-03-28 01:56:48 -0800 | [diff] [blame] | 45 | #include <linux/dma-mapping.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | #include <scsi/scsicam.h> |
| 47 | |
| 48 | #include <asm/dma.h> |
| 49 | #include <asm/io.h> |
| 50 | #include <asm/system.h> |
| 51 | |
| 52 | #include <scsi/scsi.h> |
| 53 | #include <scsi/scsi_cmnd.h> |
| 54 | #include <scsi/scsi_device.h> |
| 55 | #include <scsi/scsi_host.h> |
| 56 | #include <scsi/scsi_tcq.h> |
| 57 | #include "BusLogic.h" |
| 58 | #include "FlashPoint.c" |
| 59 | |
| 60 | #ifndef FAILURE |
| 61 | #define FAILURE (-1) |
| 62 | #endif |
| 63 | |
| 64 | static struct scsi_host_template Bus_Logic_template; |
| 65 | |
| 66 | /* |
| 67 | BusLogic_DriverOptionsCount is a count of the number of BusLogic Driver |
| 68 | Options specifications provided via the Linux Kernel Command Line or via |
| 69 | the Loadable Kernel Module Installation Facility. |
| 70 | */ |
| 71 | |
| 72 | static int BusLogic_DriverOptionsCount; |
| 73 | |
| 74 | |
| 75 | /* |
| 76 | BusLogic_DriverOptions is an array of Driver Options structures representing |
| 77 | BusLogic Driver Options specifications provided via the Linux Kernel Command |
| 78 | Line or via the Loadable Kernel Module Installation Facility. |
| 79 | */ |
| 80 | |
| 81 | static struct BusLogic_DriverOptions BusLogic_DriverOptions[BusLogic_MaxHostAdapters]; |
| 82 | |
| 83 | |
| 84 | /* |
| 85 | BusLogic can be assigned a string by insmod. |
| 86 | */ |
| 87 | |
| 88 | MODULE_LICENSE("GPL"); |
| 89 | #ifdef MODULE |
| 90 | static char *BusLogic; |
| 91 | module_param(BusLogic, charp, 0); |
| 92 | #endif |
| 93 | |
| 94 | |
| 95 | /* |
| 96 | BusLogic_ProbeOptions is a set of Probe Options to be applied across |
| 97 | all BusLogic Host Adapters. |
| 98 | */ |
| 99 | |
| 100 | static struct BusLogic_ProbeOptions BusLogic_ProbeOptions; |
| 101 | |
| 102 | |
| 103 | /* |
| 104 | BusLogic_GlobalOptions is a set of Global Options to be applied across |
| 105 | all BusLogic Host Adapters. |
| 106 | */ |
| 107 | |
| 108 | static struct BusLogic_GlobalOptions BusLogic_GlobalOptions; |
| 109 | |
| 110 | static LIST_HEAD(BusLogic_host_list); |
| 111 | |
| 112 | /* |
| 113 | BusLogic_ProbeInfoCount is the number of entries in BusLogic_ProbeInfoList. |
| 114 | */ |
| 115 | |
| 116 | static int BusLogic_ProbeInfoCount; |
| 117 | |
| 118 | |
| 119 | /* |
| 120 | BusLogic_ProbeInfoList is the list of I/O Addresses and Bus Probe Information |
| 121 | to be checked for potential BusLogic Host Adapters. It is initialized by |
| 122 | interrogating the PCI Configuration Space on PCI machines as well as from the |
| 123 | list of standard BusLogic I/O Addresses. |
| 124 | */ |
| 125 | |
| 126 | static struct BusLogic_ProbeInfo *BusLogic_ProbeInfoList; |
| 127 | |
| 128 | |
| 129 | /* |
| 130 | BusLogic_CommandFailureReason holds a string identifying the reason why a |
| 131 | call to BusLogic_Command failed. It is only non-NULL when BusLogic_Command |
| 132 | returns a failure code. |
| 133 | */ |
| 134 | |
| 135 | static char *BusLogic_CommandFailureReason; |
| 136 | |
| 137 | /* |
| 138 | BusLogic_AnnounceDriver announces the Driver Version and Date, Author's |
| 139 | Name, Copyright Notice, and Electronic Mail Address. |
| 140 | */ |
| 141 | |
| 142 | static void BusLogic_AnnounceDriver(struct BusLogic_HostAdapter *HostAdapter) |
| 143 | { |
| 144 | BusLogic_Announce("***** BusLogic SCSI Driver Version " BusLogic_DriverVersion " of " BusLogic_DriverDate " *****\n", HostAdapter); |
| 145 | BusLogic_Announce("Copyright 1995-1998 by Leonard N. Zubkoff " "<lnz@dandelion.com>\n", HostAdapter); |
| 146 | } |
| 147 | |
| 148 | |
| 149 | /* |
| 150 | BusLogic_DriverInfo returns the Host Adapter Name to identify this SCSI |
| 151 | Driver and Host Adapter. |
| 152 | */ |
| 153 | |
| 154 | static const char *BusLogic_DriverInfo(struct Scsi_Host *Host) |
| 155 | { |
| 156 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Host->hostdata; |
| 157 | return HostAdapter->FullModelName; |
| 158 | } |
| 159 | |
| 160 | /* |
| 161 | BusLogic_InitializeCCBs initializes a group of Command Control Blocks (CCBs) |
| 162 | for Host Adapter from the BlockSize bytes located at BlockPointer. The newly |
| 163 | created CCBs are added to Host Adapter's free list. |
| 164 | */ |
| 165 | |
| 166 | static void BusLogic_InitializeCCBs(struct BusLogic_HostAdapter *HostAdapter, void *BlockPointer, int BlockSize, dma_addr_t BlockPointerHandle) |
| 167 | { |
| 168 | struct BusLogic_CCB *CCB = (struct BusLogic_CCB *) BlockPointer; |
| 169 | unsigned int offset = 0; |
| 170 | memset(BlockPointer, 0, BlockSize); |
| 171 | CCB->AllocationGroupHead = BlockPointerHandle; |
| 172 | CCB->AllocationGroupSize = BlockSize; |
| 173 | while ((BlockSize -= sizeof(struct BusLogic_CCB)) >= 0) { |
| 174 | CCB->Status = BusLogic_CCB_Free; |
| 175 | CCB->HostAdapter = HostAdapter; |
| 176 | CCB->DMA_Handle = (u32) BlockPointerHandle + offset; |
| 177 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) { |
| 178 | CCB->CallbackFunction = BusLogic_QueueCompletedCCB; |
| 179 | CCB->BaseAddress = HostAdapter->FlashPointInfo.BaseAddress; |
| 180 | } |
| 181 | CCB->Next = HostAdapter->Free_CCBs; |
| 182 | CCB->NextAll = HostAdapter->All_CCBs; |
| 183 | HostAdapter->Free_CCBs = CCB; |
| 184 | HostAdapter->All_CCBs = CCB; |
| 185 | HostAdapter->AllocatedCCBs++; |
| 186 | CCB++; |
| 187 | offset += sizeof(struct BusLogic_CCB); |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | |
| 192 | /* |
| 193 | BusLogic_CreateInitialCCBs allocates the initial CCBs for Host Adapter. |
| 194 | */ |
| 195 | |
| 196 | static boolean __init BusLogic_CreateInitialCCBs(struct BusLogic_HostAdapter *HostAdapter) |
| 197 | { |
| 198 | int BlockSize = BusLogic_CCB_AllocationGroupSize * sizeof(struct BusLogic_CCB); |
| 199 | void *BlockPointer; |
| 200 | dma_addr_t BlockPointerHandle; |
| 201 | while (HostAdapter->AllocatedCCBs < HostAdapter->InitialCCBs) { |
| 202 | BlockPointer = pci_alloc_consistent(HostAdapter->PCI_Device, BlockSize, &BlockPointerHandle); |
| 203 | if (BlockPointer == NULL) { |
| 204 | BusLogic_Error("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n", HostAdapter); |
| 205 | return false; |
| 206 | } |
| 207 | BusLogic_InitializeCCBs(HostAdapter, BlockPointer, BlockSize, BlockPointerHandle); |
| 208 | } |
| 209 | return true; |
| 210 | } |
| 211 | |
| 212 | |
| 213 | /* |
| 214 | BusLogic_DestroyCCBs deallocates the CCBs for Host Adapter. |
| 215 | */ |
| 216 | |
| 217 | static void BusLogic_DestroyCCBs(struct BusLogic_HostAdapter *HostAdapter) |
| 218 | { |
| 219 | struct BusLogic_CCB *NextCCB = HostAdapter->All_CCBs, *CCB, *Last_CCB = NULL; |
| 220 | HostAdapter->All_CCBs = NULL; |
| 221 | HostAdapter->Free_CCBs = NULL; |
| 222 | while ((CCB = NextCCB) != NULL) { |
| 223 | NextCCB = CCB->NextAll; |
| 224 | if (CCB->AllocationGroupHead) { |
| 225 | if (Last_CCB) |
| 226 | pci_free_consistent(HostAdapter->PCI_Device, Last_CCB->AllocationGroupSize, Last_CCB, Last_CCB->AllocationGroupHead); |
| 227 | Last_CCB = CCB; |
| 228 | } |
| 229 | } |
| 230 | if (Last_CCB) |
| 231 | pci_free_consistent(HostAdapter->PCI_Device, Last_CCB->AllocationGroupSize, Last_CCB, Last_CCB->AllocationGroupHead); |
| 232 | } |
| 233 | |
| 234 | |
| 235 | /* |
| 236 | BusLogic_CreateAdditionalCCBs allocates Additional CCBs for Host Adapter. If |
| 237 | allocation fails and there are no remaining CCBs available, the Driver Queue |
| 238 | Depth is decreased to a known safe value to avoid potential deadlocks when |
| 239 | multiple host adapters share the same IRQ Channel. |
| 240 | */ |
| 241 | |
| 242 | static void BusLogic_CreateAdditionalCCBs(struct BusLogic_HostAdapter *HostAdapter, int AdditionalCCBs, boolean SuccessMessageP) |
| 243 | { |
| 244 | int BlockSize = BusLogic_CCB_AllocationGroupSize * sizeof(struct BusLogic_CCB); |
| 245 | int PreviouslyAllocated = HostAdapter->AllocatedCCBs; |
| 246 | void *BlockPointer; |
| 247 | dma_addr_t BlockPointerHandle; |
| 248 | if (AdditionalCCBs <= 0) |
| 249 | return; |
| 250 | while (HostAdapter->AllocatedCCBs - PreviouslyAllocated < AdditionalCCBs) { |
| 251 | BlockPointer = pci_alloc_consistent(HostAdapter->PCI_Device, BlockSize, &BlockPointerHandle); |
| 252 | if (BlockPointer == NULL) |
| 253 | break; |
| 254 | BusLogic_InitializeCCBs(HostAdapter, BlockPointer, BlockSize, BlockPointerHandle); |
| 255 | } |
| 256 | if (HostAdapter->AllocatedCCBs > PreviouslyAllocated) { |
| 257 | if (SuccessMessageP) |
| 258 | BusLogic_Notice("Allocated %d additional CCBs (total now %d)\n", HostAdapter, HostAdapter->AllocatedCCBs - PreviouslyAllocated, HostAdapter->AllocatedCCBs); |
| 259 | return; |
| 260 | } |
| 261 | BusLogic_Notice("Failed to allocate additional CCBs\n", HostAdapter); |
| 262 | if (HostAdapter->DriverQueueDepth > HostAdapter->AllocatedCCBs - HostAdapter->TargetDeviceCount) { |
| 263 | HostAdapter->DriverQueueDepth = HostAdapter->AllocatedCCBs - HostAdapter->TargetDeviceCount; |
| 264 | HostAdapter->SCSI_Host->can_queue = HostAdapter->DriverQueueDepth; |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | /* |
| 269 | BusLogic_AllocateCCB allocates a CCB from Host Adapter's free list, |
| 270 | allocating more memory from the Kernel if necessary. The Host Adapter's |
| 271 | Lock should already have been acquired by the caller. |
| 272 | */ |
| 273 | |
| 274 | static struct BusLogic_CCB *BusLogic_AllocateCCB(struct BusLogic_HostAdapter |
| 275 | *HostAdapter) |
| 276 | { |
| 277 | static unsigned long SerialNumber = 0; |
| 278 | struct BusLogic_CCB *CCB; |
| 279 | CCB = HostAdapter->Free_CCBs; |
| 280 | if (CCB != NULL) { |
| 281 | CCB->SerialNumber = ++SerialNumber; |
| 282 | HostAdapter->Free_CCBs = CCB->Next; |
| 283 | CCB->Next = NULL; |
| 284 | if (HostAdapter->Free_CCBs == NULL) |
| 285 | BusLogic_CreateAdditionalCCBs(HostAdapter, HostAdapter->IncrementalCCBs, true); |
| 286 | return CCB; |
| 287 | } |
| 288 | BusLogic_CreateAdditionalCCBs(HostAdapter, HostAdapter->IncrementalCCBs, true); |
| 289 | CCB = HostAdapter->Free_CCBs; |
| 290 | if (CCB == NULL) |
| 291 | return NULL; |
| 292 | CCB->SerialNumber = ++SerialNumber; |
| 293 | HostAdapter->Free_CCBs = CCB->Next; |
| 294 | CCB->Next = NULL; |
| 295 | return CCB; |
| 296 | } |
| 297 | |
| 298 | |
| 299 | /* |
| 300 | BusLogic_DeallocateCCB deallocates a CCB, returning it to the Host Adapter's |
| 301 | free list. The Host Adapter's Lock should already have been acquired by the |
| 302 | caller. |
| 303 | */ |
| 304 | |
| 305 | static void BusLogic_DeallocateCCB(struct BusLogic_CCB *CCB) |
| 306 | { |
| 307 | struct BusLogic_HostAdapter *HostAdapter = CCB->HostAdapter; |
| 308 | struct scsi_cmnd *cmd = CCB->Command; |
| 309 | |
| 310 | if (cmd->use_sg != 0) { |
| 311 | pci_unmap_sg(HostAdapter->PCI_Device, |
| 312 | (struct scatterlist *)cmd->request_buffer, |
| 313 | cmd->use_sg, cmd->sc_data_direction); |
| 314 | } else if (cmd->request_bufflen != 0) { |
| 315 | pci_unmap_single(HostAdapter->PCI_Device, CCB->DataPointer, |
| 316 | CCB->DataLength, cmd->sc_data_direction); |
| 317 | } |
| 318 | pci_unmap_single(HostAdapter->PCI_Device, CCB->SenseDataPointer, |
| 319 | CCB->SenseDataLength, PCI_DMA_FROMDEVICE); |
| 320 | |
| 321 | CCB->Command = NULL; |
| 322 | CCB->Status = BusLogic_CCB_Free; |
| 323 | CCB->Next = HostAdapter->Free_CCBs; |
| 324 | HostAdapter->Free_CCBs = CCB; |
| 325 | } |
| 326 | |
| 327 | |
| 328 | /* |
| 329 | BusLogic_Command sends the command OperationCode to HostAdapter, optionally |
| 330 | providing ParameterLength bytes of ParameterData and receiving at most |
| 331 | ReplyLength bytes of ReplyData; any excess reply data is received but |
| 332 | discarded. |
| 333 | |
| 334 | On success, this function returns the number of reply bytes read from |
| 335 | the Host Adapter (including any discarded data); on failure, it returns |
| 336 | -1 if the command was invalid, or -2 if a timeout occurred. |
| 337 | |
| 338 | BusLogic_Command is called exclusively during host adapter detection and |
| 339 | initialization, so performance and latency are not critical, and exclusive |
| 340 | access to the Host Adapter hardware is assumed. Once the host adapter and |
| 341 | driver are initialized, the only Host Adapter command that is issued is the |
| 342 | single byte Execute Mailbox Command operation code, which does not require |
| 343 | waiting for the Host Adapter Ready bit to be set in the Status Register. |
| 344 | */ |
| 345 | |
| 346 | static int BusLogic_Command(struct BusLogic_HostAdapter *HostAdapter, enum BusLogic_OperationCode OperationCode, void *ParameterData, int ParameterLength, void *ReplyData, int ReplyLength) |
| 347 | { |
| 348 | unsigned char *ParameterPointer = (unsigned char *) ParameterData; |
| 349 | unsigned char *ReplyPointer = (unsigned char *) ReplyData; |
| 350 | union BusLogic_StatusRegister StatusRegister; |
| 351 | union BusLogic_InterruptRegister InterruptRegister; |
| 352 | unsigned long ProcessorFlags = 0; |
| 353 | int ReplyBytes = 0, Result; |
| 354 | long TimeoutCounter; |
| 355 | /* |
| 356 | Clear out the Reply Data if provided. |
| 357 | */ |
| 358 | if (ReplyLength > 0) |
| 359 | memset(ReplyData, 0, ReplyLength); |
| 360 | /* |
| 361 | If the IRQ Channel has not yet been acquired, then interrupts must be |
| 362 | disabled while issuing host adapter commands since a Command Complete |
| 363 | interrupt could occur if the IRQ Channel was previously enabled by another |
| 364 | BusLogic Host Adapter or another driver sharing the same IRQ Channel. |
| 365 | */ |
| 366 | if (!HostAdapter->IRQ_ChannelAcquired) { |
| 367 | local_irq_save(ProcessorFlags); |
| 368 | local_irq_disable(); |
| 369 | } |
| 370 | /* |
| 371 | Wait for the Host Adapter Ready bit to be set and the Command/Parameter |
| 372 | Register Busy bit to be reset in the Status Register. |
| 373 | */ |
| 374 | TimeoutCounter = 10000; |
| 375 | while (--TimeoutCounter >= 0) { |
| 376 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); |
| 377 | if (StatusRegister.sr.HostAdapterReady && !StatusRegister.sr.CommandParameterRegisterBusy) |
| 378 | break; |
| 379 | udelay(100); |
| 380 | } |
| 381 | if (TimeoutCounter < 0) { |
| 382 | BusLogic_CommandFailureReason = "Timeout waiting for Host Adapter Ready"; |
| 383 | Result = -2; |
| 384 | goto Done; |
| 385 | } |
| 386 | /* |
| 387 | Write the OperationCode to the Command/Parameter Register. |
| 388 | */ |
| 389 | HostAdapter->HostAdapterCommandCompleted = false; |
| 390 | BusLogic_WriteCommandParameterRegister(HostAdapter, OperationCode); |
| 391 | /* |
| 392 | Write any additional Parameter Bytes. |
| 393 | */ |
| 394 | TimeoutCounter = 10000; |
| 395 | while (ParameterLength > 0 && --TimeoutCounter >= 0) { |
| 396 | /* |
| 397 | Wait 100 microseconds to give the Host Adapter enough time to determine |
| 398 | whether the last value written to the Command/Parameter Register was |
| 399 | valid or not. If the Command Complete bit is set in the Interrupt |
| 400 | Register, then the Command Invalid bit in the Status Register will be |
| 401 | reset if the Operation Code or Parameter was valid and the command |
| 402 | has completed, or set if the Operation Code or Parameter was invalid. |
| 403 | If the Data In Register Ready bit is set in the Status Register, then |
| 404 | the Operation Code was valid, and data is waiting to be read back |
| 405 | from the Host Adapter. Otherwise, wait for the Command/Parameter |
| 406 | Register Busy bit in the Status Register to be reset. |
| 407 | */ |
| 408 | udelay(100); |
| 409 | InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter); |
| 410 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); |
| 411 | if (InterruptRegister.ir.CommandComplete) |
| 412 | break; |
| 413 | if (HostAdapter->HostAdapterCommandCompleted) |
| 414 | break; |
| 415 | if (StatusRegister.sr.DataInRegisterReady) |
| 416 | break; |
| 417 | if (StatusRegister.sr.CommandParameterRegisterBusy) |
| 418 | continue; |
| 419 | BusLogic_WriteCommandParameterRegister(HostAdapter, *ParameterPointer++); |
| 420 | ParameterLength--; |
| 421 | } |
| 422 | if (TimeoutCounter < 0) { |
| 423 | BusLogic_CommandFailureReason = "Timeout waiting for Parameter Acceptance"; |
| 424 | Result = -2; |
| 425 | goto Done; |
| 426 | } |
| 427 | /* |
| 428 | The Modify I/O Address command does not cause a Command Complete Interrupt. |
| 429 | */ |
| 430 | if (OperationCode == BusLogic_ModifyIOAddress) { |
| 431 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); |
| 432 | if (StatusRegister.sr.CommandInvalid) { |
| 433 | BusLogic_CommandFailureReason = "Modify I/O Address Invalid"; |
| 434 | Result = -1; |
| 435 | goto Done; |
| 436 | } |
| 437 | if (BusLogic_GlobalOptions.TraceConfiguration) |
| 438 | BusLogic_Notice("BusLogic_Command(%02X) Status = %02X: " "(Modify I/O Address)\n", HostAdapter, OperationCode, StatusRegister.All); |
| 439 | Result = 0; |
| 440 | goto Done; |
| 441 | } |
| 442 | /* |
| 443 | Select an appropriate timeout value for awaiting command completion. |
| 444 | */ |
| 445 | switch (OperationCode) { |
| 446 | case BusLogic_InquireInstalledDevicesID0to7: |
| 447 | case BusLogic_InquireInstalledDevicesID8to15: |
| 448 | case BusLogic_InquireTargetDevices: |
| 449 | /* Approximately 60 seconds. */ |
| 450 | TimeoutCounter = 60 * 10000; |
| 451 | break; |
| 452 | default: |
| 453 | /* Approximately 1 second. */ |
| 454 | TimeoutCounter = 10000; |
| 455 | break; |
| 456 | } |
| 457 | /* |
| 458 | Receive any Reply Bytes, waiting for either the Command Complete bit to |
| 459 | be set in the Interrupt Register, or for the Interrupt Handler to set the |
| 460 | Host Adapter Command Completed bit in the Host Adapter structure. |
| 461 | */ |
| 462 | while (--TimeoutCounter >= 0) { |
| 463 | InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter); |
| 464 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); |
| 465 | if (InterruptRegister.ir.CommandComplete) |
| 466 | break; |
| 467 | if (HostAdapter->HostAdapterCommandCompleted) |
| 468 | break; |
| 469 | if (StatusRegister.sr.DataInRegisterReady) { |
| 470 | if (++ReplyBytes <= ReplyLength) |
| 471 | *ReplyPointer++ = BusLogic_ReadDataInRegister(HostAdapter); |
| 472 | else |
| 473 | BusLogic_ReadDataInRegister(HostAdapter); |
| 474 | } |
| 475 | if (OperationCode == BusLogic_FetchHostAdapterLocalRAM && StatusRegister.sr.HostAdapterReady) |
| 476 | break; |
| 477 | udelay(100); |
| 478 | } |
| 479 | if (TimeoutCounter < 0) { |
| 480 | BusLogic_CommandFailureReason = "Timeout waiting for Command Complete"; |
| 481 | Result = -2; |
| 482 | goto Done; |
| 483 | } |
| 484 | /* |
| 485 | Clear any pending Command Complete Interrupt. |
| 486 | */ |
| 487 | BusLogic_InterruptReset(HostAdapter); |
| 488 | /* |
| 489 | Provide tracing information if requested. |
| 490 | */ |
| 491 | if (BusLogic_GlobalOptions.TraceConfiguration) { |
| 492 | int i; |
| 493 | BusLogic_Notice("BusLogic_Command(%02X) Status = %02X: %2d ==> %2d:", HostAdapter, OperationCode, StatusRegister.All, ReplyLength, ReplyBytes); |
| 494 | if (ReplyLength > ReplyBytes) |
| 495 | ReplyLength = ReplyBytes; |
| 496 | for (i = 0; i < ReplyLength; i++) |
| 497 | BusLogic_Notice(" %02X", HostAdapter, ((unsigned char *) ReplyData)[i]); |
| 498 | BusLogic_Notice("\n", HostAdapter); |
| 499 | } |
| 500 | /* |
| 501 | Process Command Invalid conditions. |
| 502 | */ |
| 503 | if (StatusRegister.sr.CommandInvalid) { |
| 504 | /* |
| 505 | Some early BusLogic Host Adapters may not recover properly from |
| 506 | a Command Invalid condition, so if this appears to be the case, |
| 507 | a Soft Reset is issued to the Host Adapter. Potentially invalid |
| 508 | commands are never attempted after Mailbox Initialization is |
| 509 | performed, so there should be no Host Adapter state lost by a |
| 510 | Soft Reset in response to a Command Invalid condition. |
| 511 | */ |
| 512 | udelay(1000); |
| 513 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); |
| 514 | if (StatusRegister.sr.CommandInvalid || |
| 515 | StatusRegister.sr.Reserved || |
| 516 | StatusRegister.sr.DataInRegisterReady || |
| 517 | StatusRegister.sr.CommandParameterRegisterBusy || !StatusRegister.sr.HostAdapterReady || !StatusRegister.sr.InitializationRequired || StatusRegister.sr.DiagnosticActive || StatusRegister.sr.DiagnosticFailure) { |
| 518 | BusLogic_SoftReset(HostAdapter); |
| 519 | udelay(1000); |
| 520 | } |
| 521 | BusLogic_CommandFailureReason = "Command Invalid"; |
| 522 | Result = -1; |
| 523 | goto Done; |
| 524 | } |
| 525 | /* |
| 526 | Handle Excess Parameters Supplied conditions. |
| 527 | */ |
| 528 | if (ParameterLength > 0) { |
| 529 | BusLogic_CommandFailureReason = "Excess Parameters Supplied"; |
| 530 | Result = -1; |
| 531 | goto Done; |
| 532 | } |
| 533 | /* |
| 534 | Indicate the command completed successfully. |
| 535 | */ |
| 536 | BusLogic_CommandFailureReason = NULL; |
| 537 | Result = ReplyBytes; |
| 538 | /* |
| 539 | Restore the interrupt status if necessary and return. |
| 540 | */ |
| 541 | Done: |
| 542 | if (!HostAdapter->IRQ_ChannelAcquired) |
| 543 | local_irq_restore(ProcessorFlags); |
| 544 | return Result; |
| 545 | } |
| 546 | |
| 547 | |
| 548 | /* |
| 549 | BusLogic_AppendProbeAddressISA appends a single ISA I/O Address to the list |
| 550 | of I/O Address and Bus Probe Information to be checked for potential BusLogic |
| 551 | Host Adapters. |
| 552 | */ |
| 553 | |
| 554 | static void __init BusLogic_AppendProbeAddressISA(unsigned long IO_Address) |
| 555 | { |
| 556 | struct BusLogic_ProbeInfo *ProbeInfo; |
| 557 | if (BusLogic_ProbeInfoCount >= BusLogic_MaxHostAdapters) |
| 558 | return; |
| 559 | ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++]; |
| 560 | ProbeInfo->HostAdapterType = BusLogic_MultiMaster; |
| 561 | ProbeInfo->HostAdapterBusType = BusLogic_ISA_Bus; |
| 562 | ProbeInfo->IO_Address = IO_Address; |
| 563 | ProbeInfo->PCI_Device = NULL; |
| 564 | } |
| 565 | |
| 566 | |
| 567 | /* |
| 568 | BusLogic_InitializeProbeInfoListISA initializes the list of I/O Address and |
| 569 | Bus Probe Information to be checked for potential BusLogic SCSI Host Adapters |
| 570 | only from the list of standard BusLogic MultiMaster ISA I/O Addresses. |
| 571 | */ |
| 572 | |
| 573 | static void __init BusLogic_InitializeProbeInfoListISA(struct BusLogic_HostAdapter |
| 574 | *PrototypeHostAdapter) |
| 575 | { |
| 576 | /* |
| 577 | If BusLogic Driver Options specifications requested that ISA Bus Probes |
| 578 | be inhibited, do not proceed further. |
| 579 | */ |
| 580 | if (BusLogic_ProbeOptions.NoProbeISA) |
| 581 | return; |
| 582 | /* |
| 583 | Append the list of standard BusLogic MultiMaster ISA I/O Addresses. |
| 584 | */ |
| 585 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe330 : check_region(0x330, BusLogic_MultiMasterAddressCount) == 0) |
| 586 | BusLogic_AppendProbeAddressISA(0x330); |
| 587 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe334 : check_region(0x334, BusLogic_MultiMasterAddressCount) == 0) |
| 588 | BusLogic_AppendProbeAddressISA(0x334); |
| 589 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe230 : check_region(0x230, BusLogic_MultiMasterAddressCount) == 0) |
| 590 | BusLogic_AppendProbeAddressISA(0x230); |
| 591 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe234 : check_region(0x234, BusLogic_MultiMasterAddressCount) == 0) |
| 592 | BusLogic_AppendProbeAddressISA(0x234); |
| 593 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe130 : check_region(0x130, BusLogic_MultiMasterAddressCount) == 0) |
| 594 | BusLogic_AppendProbeAddressISA(0x130); |
| 595 | if (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe134 : check_region(0x134, BusLogic_MultiMasterAddressCount) == 0) |
| 596 | BusLogic_AppendProbeAddressISA(0x134); |
| 597 | } |
| 598 | |
| 599 | |
| 600 | #ifdef CONFIG_PCI |
| 601 | |
| 602 | |
| 603 | /* |
| 604 | BusLogic_SortProbeInfo sorts a section of BusLogic_ProbeInfoList in order |
| 605 | of increasing PCI Bus and Device Number. |
| 606 | */ |
| 607 | |
| 608 | static void __init BusLogic_SortProbeInfo(struct BusLogic_ProbeInfo *ProbeInfoList, int ProbeInfoCount) |
| 609 | { |
| 610 | int LastInterchange = ProbeInfoCount - 1, Bound, j; |
| 611 | while (LastInterchange > 0) { |
| 612 | Bound = LastInterchange; |
| 613 | LastInterchange = 0; |
| 614 | for (j = 0; j < Bound; j++) { |
| 615 | struct BusLogic_ProbeInfo *ProbeInfo1 = &ProbeInfoList[j]; |
| 616 | struct BusLogic_ProbeInfo *ProbeInfo2 = &ProbeInfoList[j + 1]; |
| 617 | if (ProbeInfo1->Bus > ProbeInfo2->Bus || (ProbeInfo1->Bus == ProbeInfo2->Bus && (ProbeInfo1->Device > ProbeInfo2->Device))) { |
| 618 | struct BusLogic_ProbeInfo TempProbeInfo; |
| 619 | memcpy(&TempProbeInfo, ProbeInfo1, sizeof(struct BusLogic_ProbeInfo)); |
| 620 | memcpy(ProbeInfo1, ProbeInfo2, sizeof(struct BusLogic_ProbeInfo)); |
| 621 | memcpy(ProbeInfo2, &TempProbeInfo, sizeof(struct BusLogic_ProbeInfo)); |
| 622 | LastInterchange = j; |
| 623 | } |
| 624 | } |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | |
| 629 | /* |
| 630 | BusLogic_InitializeMultiMasterProbeInfo initializes the list of I/O Address |
| 631 | and Bus Probe Information to be checked for potential BusLogic MultiMaster |
| 632 | SCSI Host Adapters by interrogating the PCI Configuration Space on PCI |
| 633 | machines as well as from the list of standard BusLogic MultiMaster ISA |
| 634 | I/O Addresses. It returns the number of PCI MultiMaster Host Adapters found. |
| 635 | */ |
| 636 | |
| 637 | static int __init BusLogic_InitializeMultiMasterProbeInfo(struct BusLogic_HostAdapter |
| 638 | *PrototypeHostAdapter) |
| 639 | { |
| 640 | struct BusLogic_ProbeInfo *PrimaryProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount]; |
| 641 | int NonPrimaryPCIMultiMasterIndex = BusLogic_ProbeInfoCount + 1; |
| 642 | int NonPrimaryPCIMultiMasterCount = 0, PCIMultiMasterCount = 0; |
| 643 | boolean ForceBusDeviceScanningOrder = false; |
| 644 | boolean ForceBusDeviceScanningOrderChecked = false; |
| 645 | boolean StandardAddressSeen[6]; |
| 646 | struct pci_dev *PCI_Device = NULL; |
| 647 | int i; |
| 648 | if (BusLogic_ProbeInfoCount >= BusLogic_MaxHostAdapters) |
| 649 | return 0; |
| 650 | BusLogic_ProbeInfoCount++; |
| 651 | for (i = 0; i < 6; i++) |
| 652 | StandardAddressSeen[i] = false; |
| 653 | /* |
| 654 | Iterate over the MultiMaster PCI Host Adapters. For each enumerated host |
| 655 | adapter, determine whether its ISA Compatible I/O Port is enabled and if |
| 656 | so, whether it is assigned the Primary I/O Address. A host adapter that is |
| 657 | assigned the Primary I/O Address will always be the preferred boot device. |
| 658 | The MultiMaster BIOS will first recognize a host adapter at the Primary I/O |
| 659 | Address, then any other PCI host adapters, and finally any host adapters |
| 660 | located at the remaining standard ISA I/O Addresses. When a PCI host |
| 661 | adapter is found with its ISA Compatible I/O Port enabled, a command is |
| 662 | issued to disable the ISA Compatible I/O Port, and it is noted that the |
| 663 | particular standard ISA I/O Address need not be probed. |
| 664 | */ |
| 665 | PrimaryProbeInfo->IO_Address = 0; |
| 666 | while ((PCI_Device = pci_find_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER, PCI_Device)) != NULL) { |
| 667 | struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter; |
| 668 | struct BusLogic_PCIHostAdapterInformation PCIHostAdapterInformation; |
| 669 | enum BusLogic_ISACompatibleIOPort ModifyIOAddressRequest; |
| 670 | unsigned char Bus; |
| 671 | unsigned char Device; |
| 672 | unsigned int IRQ_Channel; |
| 673 | unsigned long BaseAddress0; |
| 674 | unsigned long BaseAddress1; |
| 675 | unsigned long IO_Address; |
| 676 | unsigned long PCI_Address; |
| 677 | |
| 678 | if (pci_enable_device(PCI_Device)) |
| 679 | continue; |
| 680 | |
Matthias Gehre | 910638a | 2006-03-28 01:56:48 -0800 | [diff] [blame] | 681 | if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK )) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | continue; |
| 683 | |
| 684 | Bus = PCI_Device->bus->number; |
| 685 | Device = PCI_Device->devfn >> 3; |
| 686 | IRQ_Channel = PCI_Device->irq; |
| 687 | IO_Address = BaseAddress0 = pci_resource_start(PCI_Device, 0); |
| 688 | PCI_Address = BaseAddress1 = pci_resource_start(PCI_Device, 1); |
| 689 | |
| 690 | if (pci_resource_flags(PCI_Device, 0) & IORESOURCE_MEM) { |
| 691 | BusLogic_Error("BusLogic: Base Address0 0x%X not I/O for " "MultiMaster Host Adapter\n", NULL, BaseAddress0); |
| 692 | BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address); |
| 693 | continue; |
| 694 | } |
| 695 | if (pci_resource_flags(PCI_Device, 1) & IORESOURCE_IO) { |
| 696 | BusLogic_Error("BusLogic: Base Address1 0x%X not Memory for " "MultiMaster Host Adapter\n", NULL, BaseAddress1); |
| 697 | BusLogic_Error("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, Bus, Device, PCI_Address); |
| 698 | continue; |
| 699 | } |
| 700 | if (IRQ_Channel == 0) { |
| 701 | BusLogic_Error("BusLogic: IRQ Channel %d invalid for " "MultiMaster Host Adapter\n", NULL, IRQ_Channel); |
| 702 | BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address); |
| 703 | continue; |
| 704 | } |
| 705 | if (BusLogic_GlobalOptions.TraceProbe) { |
| 706 | BusLogic_Notice("BusLogic: PCI MultiMaster Host Adapter " "detected at\n", NULL); |
| 707 | 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); |
| 708 | } |
| 709 | /* |
| 710 | Issue the Inquire PCI Host Adapter Information command to determine |
| 711 | the ISA Compatible I/O Port. If the ISA Compatible I/O Port is |
| 712 | known and enabled, note that the particular Standard ISA I/O |
| 713 | Address should not be probed. |
| 714 | */ |
| 715 | HostAdapter->IO_Address = IO_Address; |
| 716 | BusLogic_InterruptReset(HostAdapter); |
| 717 | if (BusLogic_Command(HostAdapter, BusLogic_InquirePCIHostAdapterInformation, NULL, 0, &PCIHostAdapterInformation, sizeof(PCIHostAdapterInformation)) |
| 718 | == sizeof(PCIHostAdapterInformation)) { |
| 719 | if (PCIHostAdapterInformation.ISACompatibleIOPort < 6) |
| 720 | StandardAddressSeen[PCIHostAdapterInformation.ISACompatibleIOPort] = true; |
| 721 | } else |
| 722 | PCIHostAdapterInformation.ISACompatibleIOPort = BusLogic_IO_Disable; |
| 723 | /* |
| 724 | * Issue the Modify I/O Address command to disable the ISA Compatible |
| 725 | * I/O Port. On PCI Host Adapters, the Modify I/O Address command |
| 726 | * allows modification of the ISA compatible I/O Address that the Host |
| 727 | * Adapter responds to; it does not affect the PCI compliant I/O Address |
| 728 | * assigned at system initialization. |
| 729 | */ |
| 730 | ModifyIOAddressRequest = BusLogic_IO_Disable; |
| 731 | BusLogic_Command(HostAdapter, BusLogic_ModifyIOAddress, &ModifyIOAddressRequest, sizeof(ModifyIOAddressRequest), NULL, 0); |
| 732 | /* |
| 733 | For the first MultiMaster Host Adapter enumerated, issue the Fetch |
| 734 | Host Adapter Local RAM command to read byte 45 of the AutoSCSI area, |
| 735 | for the setting of the "Use Bus And Device # For PCI Scanning Seq." |
| 736 | option. Issue the Inquire Board ID command since this option is |
| 737 | only valid for the BT-948/958/958D. |
| 738 | */ |
| 739 | if (!ForceBusDeviceScanningOrderChecked) { |
| 740 | struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest; |
| 741 | struct BusLogic_AutoSCSIByte45 AutoSCSIByte45; |
| 742 | struct BusLogic_BoardID BoardID; |
| 743 | FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_AutoSCSI_BaseOffset + 45; |
| 744 | FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(AutoSCSIByte45); |
| 745 | BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &AutoSCSIByte45, sizeof(AutoSCSIByte45)); |
| 746 | BusLogic_Command(HostAdapter, BusLogic_InquireBoardID, NULL, 0, &BoardID, sizeof(BoardID)); |
| 747 | if (BoardID.FirmwareVersion1stDigit == '5') |
| 748 | ForceBusDeviceScanningOrder = AutoSCSIByte45.ForceBusDeviceScanningOrder; |
| 749 | ForceBusDeviceScanningOrderChecked = true; |
| 750 | } |
| 751 | /* |
| 752 | Determine whether this MultiMaster Host Adapter has its ISA |
| 753 | Compatible I/O Port enabled and is assigned the Primary I/O Address. |
| 754 | If it does, then it is the Primary MultiMaster Host Adapter and must |
| 755 | be recognized first. If it does not, then it is added to the list |
| 756 | for probing after any Primary MultiMaster Host Adapter is probed. |
| 757 | */ |
| 758 | if (PCIHostAdapterInformation.ISACompatibleIOPort == BusLogic_IO_330) { |
| 759 | PrimaryProbeInfo->HostAdapterType = BusLogic_MultiMaster; |
| 760 | PrimaryProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus; |
| 761 | PrimaryProbeInfo->IO_Address = IO_Address; |
| 762 | PrimaryProbeInfo->PCI_Address = PCI_Address; |
| 763 | PrimaryProbeInfo->Bus = Bus; |
| 764 | PrimaryProbeInfo->Device = Device; |
| 765 | PrimaryProbeInfo->IRQ_Channel = IRQ_Channel; |
| 766 | PrimaryProbeInfo->PCI_Device = PCI_Device; |
| 767 | PCIMultiMasterCount++; |
| 768 | } else if (BusLogic_ProbeInfoCount < BusLogic_MaxHostAdapters) { |
| 769 | struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++]; |
| 770 | ProbeInfo->HostAdapterType = BusLogic_MultiMaster; |
| 771 | ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus; |
| 772 | ProbeInfo->IO_Address = IO_Address; |
| 773 | ProbeInfo->PCI_Address = PCI_Address; |
| 774 | ProbeInfo->Bus = Bus; |
| 775 | ProbeInfo->Device = Device; |
| 776 | ProbeInfo->IRQ_Channel = IRQ_Channel; |
| 777 | ProbeInfo->PCI_Device = PCI_Device; |
| 778 | NonPrimaryPCIMultiMasterCount++; |
| 779 | PCIMultiMasterCount++; |
| 780 | } else |
| 781 | BusLogic_Warning("BusLogic: Too many Host Adapters " "detected\n", NULL); |
| 782 | } |
| 783 | /* |
| 784 | If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq." option is ON |
| 785 | for the first enumerated MultiMaster Host Adapter, and if that host adapter |
| 786 | is a BT-948/958/958D, then the MultiMaster BIOS will recognize MultiMaster |
| 787 | Host Adapters in the order of increasing PCI Bus and Device Number. In |
| 788 | that case, sort the probe information into the same order the BIOS uses. |
| 789 | If this option is OFF, then the MultiMaster BIOS will recognize MultiMaster |
| 790 | Host Adapters in the order they are enumerated by the PCI BIOS, and hence |
| 791 | no sorting is necessary. |
| 792 | */ |
| 793 | if (ForceBusDeviceScanningOrder) |
| 794 | BusLogic_SortProbeInfo(&BusLogic_ProbeInfoList[NonPrimaryPCIMultiMasterIndex], NonPrimaryPCIMultiMasterCount); |
| 795 | /* |
| 796 | If no PCI MultiMaster Host Adapter is assigned the Primary I/O Address, |
| 797 | then the Primary I/O Address must be probed explicitly before any PCI |
| 798 | host adapters are probed. |
| 799 | */ |
| 800 | if (!BusLogic_ProbeOptions.NoProbeISA) |
| 801 | if (PrimaryProbeInfo->IO_Address == 0 && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe330 : check_region(0x330, BusLogic_MultiMasterAddressCount) == 0)) { |
| 802 | PrimaryProbeInfo->HostAdapterType = BusLogic_MultiMaster; |
| 803 | PrimaryProbeInfo->HostAdapterBusType = BusLogic_ISA_Bus; |
| 804 | PrimaryProbeInfo->IO_Address = 0x330; |
| 805 | } |
| 806 | /* |
| 807 | Append the list of standard BusLogic MultiMaster ISA I/O Addresses, |
| 808 | omitting the Primary I/O Address which has already been handled. |
| 809 | */ |
| 810 | if (!BusLogic_ProbeOptions.NoProbeISA) { |
| 811 | if (!StandardAddressSeen[1] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe334 : check_region(0x334, BusLogic_MultiMasterAddressCount) == 0)) |
| 812 | BusLogic_AppendProbeAddressISA(0x334); |
| 813 | if (!StandardAddressSeen[2] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe230 : check_region(0x230, BusLogic_MultiMasterAddressCount) == 0)) |
| 814 | BusLogic_AppendProbeAddressISA(0x230); |
| 815 | if (!StandardAddressSeen[3] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe234 : check_region(0x234, BusLogic_MultiMasterAddressCount) == 0)) |
| 816 | BusLogic_AppendProbeAddressISA(0x234); |
| 817 | if (!StandardAddressSeen[4] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe130 : check_region(0x130, BusLogic_MultiMasterAddressCount) == 0)) |
| 818 | BusLogic_AppendProbeAddressISA(0x130); |
| 819 | if (!StandardAddressSeen[5] && (BusLogic_ProbeOptions.LimitedProbeISA ? BusLogic_ProbeOptions.Probe134 : check_region(0x134, BusLogic_MultiMasterAddressCount) == 0)) |
| 820 | BusLogic_AppendProbeAddressISA(0x134); |
| 821 | } |
| 822 | /* |
| 823 | Iterate over the older non-compliant MultiMaster PCI Host Adapters, |
| 824 | noting the PCI bus location and assigned IRQ Channel. |
| 825 | */ |
| 826 | PCI_Device = NULL; |
| 827 | while ((PCI_Device = pci_find_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC, PCI_Device)) != NULL) { |
| 828 | unsigned char Bus; |
| 829 | unsigned char Device; |
| 830 | unsigned int IRQ_Channel; |
| 831 | unsigned long IO_Address; |
| 832 | |
| 833 | if (pci_enable_device(PCI_Device)) |
| 834 | continue; |
| 835 | |
Matthias Gehre | 910638a | 2006-03-28 01:56:48 -0800 | [diff] [blame] | 836 | if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | continue; |
| 838 | |
| 839 | Bus = PCI_Device->bus->number; |
| 840 | Device = PCI_Device->devfn >> 3; |
| 841 | IRQ_Channel = PCI_Device->irq; |
| 842 | IO_Address = pci_resource_start(PCI_Device, 0); |
| 843 | |
| 844 | if (IO_Address == 0 || IRQ_Channel == 0) |
| 845 | continue; |
| 846 | for (i = 0; i < BusLogic_ProbeInfoCount; i++) { |
| 847 | struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[i]; |
| 848 | if (ProbeInfo->IO_Address == IO_Address && ProbeInfo->HostAdapterType == BusLogic_MultiMaster) { |
| 849 | ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus; |
| 850 | ProbeInfo->PCI_Address = 0; |
| 851 | ProbeInfo->Bus = Bus; |
| 852 | ProbeInfo->Device = Device; |
| 853 | ProbeInfo->IRQ_Channel = IRQ_Channel; |
| 854 | ProbeInfo->PCI_Device = PCI_Device; |
| 855 | break; |
| 856 | } |
| 857 | } |
| 858 | } |
| 859 | return PCIMultiMasterCount; |
| 860 | } |
| 861 | |
| 862 | |
| 863 | /* |
| 864 | BusLogic_InitializeFlashPointProbeInfo initializes the list of I/O Address |
| 865 | and Bus Probe Information to be checked for potential BusLogic FlashPoint |
| 866 | Host Adapters by interrogating the PCI Configuration Space. It returns the |
| 867 | number of FlashPoint Host Adapters found. |
| 868 | */ |
| 869 | |
| 870 | static int __init BusLogic_InitializeFlashPointProbeInfo(struct BusLogic_HostAdapter |
| 871 | *PrototypeHostAdapter) |
| 872 | { |
| 873 | int FlashPointIndex = BusLogic_ProbeInfoCount, FlashPointCount = 0; |
| 874 | struct pci_dev *PCI_Device = NULL; |
| 875 | /* |
| 876 | Interrogate PCI Configuration Space for any FlashPoint Host Adapters. |
| 877 | */ |
| 878 | while ((PCI_Device = pci_find_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT, PCI_Device)) != NULL) { |
| 879 | unsigned char Bus; |
| 880 | unsigned char Device; |
| 881 | unsigned int IRQ_Channel; |
| 882 | unsigned long BaseAddress0; |
| 883 | unsigned long BaseAddress1; |
| 884 | unsigned long IO_Address; |
| 885 | unsigned long PCI_Address; |
| 886 | |
| 887 | if (pci_enable_device(PCI_Device)) |
| 888 | continue; |
| 889 | |
Matthias Gehre | 910638a | 2006-03-28 01:56:48 -0800 | [diff] [blame] | 890 | if (pci_set_dma_mask(PCI_Device, DMA_32BIT_MASK)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | continue; |
| 892 | |
| 893 | Bus = PCI_Device->bus->number; |
| 894 | Device = PCI_Device->devfn >> 3; |
| 895 | IRQ_Channel = PCI_Device->irq; |
| 896 | IO_Address = BaseAddress0 = pci_resource_start(PCI_Device, 0); |
| 897 | PCI_Address = BaseAddress1 = pci_resource_start(PCI_Device, 1); |
| 898 | #ifndef CONFIG_SCSI_OMIT_FLASHPOINT |
| 899 | if (pci_resource_flags(PCI_Device, 0) & IORESOURCE_MEM) { |
| 900 | BusLogic_Error("BusLogic: Base Address0 0x%X not I/O for " "FlashPoint Host Adapter\n", NULL, BaseAddress0); |
| 901 | BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address); |
| 902 | continue; |
| 903 | } |
| 904 | if (pci_resource_flags(PCI_Device, 1) & IORESOURCE_IO) { |
| 905 | BusLogic_Error("BusLogic: Base Address1 0x%X not Memory for " "FlashPoint Host Adapter\n", NULL, BaseAddress1); |
| 906 | BusLogic_Error("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, Bus, Device, PCI_Address); |
| 907 | continue; |
| 908 | } |
| 909 | if (IRQ_Channel == 0) { |
| 910 | BusLogic_Error("BusLogic: IRQ Channel %d invalid for " "FlashPoint Host Adapter\n", NULL, IRQ_Channel); |
| 911 | BusLogic_Error("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, Bus, Device, IO_Address); |
| 912 | continue; |
| 913 | } |
| 914 | if (BusLogic_GlobalOptions.TraceProbe) { |
| 915 | BusLogic_Notice("BusLogic: FlashPoint Host Adapter " "detected at\n", NULL); |
| 916 | 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); |
| 917 | } |
| 918 | if (BusLogic_ProbeInfoCount < BusLogic_MaxHostAdapters) { |
| 919 | struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[BusLogic_ProbeInfoCount++]; |
| 920 | ProbeInfo->HostAdapterType = BusLogic_FlashPoint; |
| 921 | ProbeInfo->HostAdapterBusType = BusLogic_PCI_Bus; |
| 922 | ProbeInfo->IO_Address = IO_Address; |
| 923 | ProbeInfo->PCI_Address = PCI_Address; |
| 924 | ProbeInfo->Bus = Bus; |
| 925 | ProbeInfo->Device = Device; |
| 926 | ProbeInfo->IRQ_Channel = IRQ_Channel; |
| 927 | ProbeInfo->PCI_Device = PCI_Device; |
| 928 | FlashPointCount++; |
| 929 | } else |
| 930 | BusLogic_Warning("BusLogic: Too many Host Adapters " "detected\n", NULL); |
| 931 | #else |
| 932 | BusLogic_Error("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", NULL, Bus, Device); |
| 933 | BusLogic_Error("BusLogic: I/O Address 0x%X PCI Address 0x%X, irq %d, " "but FlashPoint\n", NULL, IO_Address, PCI_Address, IRQ_Channel); |
| 934 | BusLogic_Error("BusLogic: support was omitted in this kernel " "configuration.\n", NULL); |
| 935 | #endif |
| 936 | } |
| 937 | /* |
| 938 | The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of |
| 939 | increasing PCI Bus and Device Number, so sort the probe information into |
| 940 | the same order the BIOS uses. |
| 941 | */ |
| 942 | BusLogic_SortProbeInfo(&BusLogic_ProbeInfoList[FlashPointIndex], FlashPointCount); |
| 943 | return FlashPointCount; |
| 944 | } |
| 945 | |
| 946 | |
| 947 | /* |
| 948 | BusLogic_InitializeProbeInfoList initializes the list of I/O Address and Bus |
| 949 | Probe Information to be checked for potential BusLogic SCSI Host Adapters by |
| 950 | interrogating the PCI Configuration Space on PCI machines as well as from the |
| 951 | list of standard BusLogic MultiMaster ISA I/O Addresses. By default, if both |
| 952 | FlashPoint and PCI MultiMaster Host Adapters are present, this driver will |
| 953 | probe for FlashPoint Host Adapters first unless the BIOS primary disk is |
| 954 | controlled by the first PCI MultiMaster Host Adapter, in which case |
| 955 | MultiMaster Host Adapters will be probed first. The BusLogic Driver Options |
| 956 | specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force |
| 957 | a particular probe order. |
| 958 | */ |
| 959 | |
| 960 | static void __init BusLogic_InitializeProbeInfoList(struct BusLogic_HostAdapter |
| 961 | *PrototypeHostAdapter) |
| 962 | { |
| 963 | /* |
| 964 | If a PCI BIOS is present, interrogate it for MultiMaster and FlashPoint |
| 965 | Host Adapters; otherwise, default to the standard ISA MultiMaster probe. |
| 966 | */ |
| 967 | if (!BusLogic_ProbeOptions.NoProbePCI) { |
| 968 | if (BusLogic_ProbeOptions.MultiMasterFirst) { |
| 969 | BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter); |
| 970 | BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter); |
| 971 | } else if (BusLogic_ProbeOptions.FlashPointFirst) { |
| 972 | BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter); |
| 973 | BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter); |
| 974 | } else { |
| 975 | int FlashPointCount = BusLogic_InitializeFlashPointProbeInfo(PrototypeHostAdapter); |
| 976 | int PCIMultiMasterCount = BusLogic_InitializeMultiMasterProbeInfo(PrototypeHostAdapter); |
| 977 | if (FlashPointCount > 0 && PCIMultiMasterCount > 0) { |
| 978 | struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[FlashPointCount]; |
| 979 | struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter; |
| 980 | struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest; |
| 981 | struct BusLogic_BIOSDriveMapByte Drive0MapByte; |
| 982 | while (ProbeInfo->HostAdapterBusType != BusLogic_PCI_Bus) |
| 983 | ProbeInfo++; |
| 984 | HostAdapter->IO_Address = ProbeInfo->IO_Address; |
| 985 | FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_BIOS_BaseOffset + BusLogic_BIOS_DriveMapOffset + 0; |
| 986 | FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(Drive0MapByte); |
| 987 | BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &Drive0MapByte, sizeof(Drive0MapByte)); |
| 988 | /* |
| 989 | If the Map Byte for BIOS Drive 0 indicates that BIOS Drive 0 |
| 990 | is controlled by this PCI MultiMaster Host Adapter, then |
| 991 | reverse the probe order so that MultiMaster Host Adapters are |
| 992 | probed before FlashPoint Host Adapters. |
| 993 | */ |
| 994 | if (Drive0MapByte.DiskGeometry != BusLogic_BIOS_Disk_Not_Installed) { |
| 995 | struct BusLogic_ProbeInfo SavedProbeInfo[BusLogic_MaxHostAdapters]; |
| 996 | int MultiMasterCount = BusLogic_ProbeInfoCount - FlashPointCount; |
| 997 | memcpy(SavedProbeInfo, BusLogic_ProbeInfoList, BusLogic_ProbeInfoCount * sizeof(struct BusLogic_ProbeInfo)); |
| 998 | memcpy(&BusLogic_ProbeInfoList[0], &SavedProbeInfo[FlashPointCount], MultiMasterCount * sizeof(struct BusLogic_ProbeInfo)); |
| 999 | memcpy(&BusLogic_ProbeInfoList[MultiMasterCount], &SavedProbeInfo[0], FlashPointCount * sizeof(struct BusLogic_ProbeInfo)); |
| 1000 | } |
| 1001 | } |
| 1002 | } |
| 1003 | } else |
| 1004 | BusLogic_InitializeProbeInfoListISA(PrototypeHostAdapter); |
| 1005 | } |
| 1006 | |
| 1007 | |
| 1008 | #endif /* CONFIG_PCI */ |
| 1009 | |
| 1010 | |
| 1011 | /* |
| 1012 | BusLogic_Failure prints a standardized error message, and then returns false. |
| 1013 | */ |
| 1014 | |
| 1015 | static boolean BusLogic_Failure(struct BusLogic_HostAdapter *HostAdapter, char *ErrorMessage) |
| 1016 | { |
| 1017 | BusLogic_AnnounceDriver(HostAdapter); |
| 1018 | if (HostAdapter->HostAdapterBusType == BusLogic_PCI_Bus) { |
| 1019 | BusLogic_Error("While configuring BusLogic PCI Host Adapter at\n", HostAdapter); |
| 1020 | 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); |
| 1021 | } else |
| 1022 | BusLogic_Error("While configuring BusLogic Host Adapter at " "I/O Address 0x%X:\n", HostAdapter, HostAdapter->IO_Address); |
| 1023 | BusLogic_Error("%s FAILED - DETACHING\n", HostAdapter, ErrorMessage); |
| 1024 | if (BusLogic_CommandFailureReason != NULL) |
| 1025 | BusLogic_Error("ADDITIONAL FAILURE INFO - %s\n", HostAdapter, BusLogic_CommandFailureReason); |
| 1026 | return false; |
| 1027 | } |
| 1028 | |
| 1029 | |
| 1030 | /* |
| 1031 | BusLogic_ProbeHostAdapter probes for a BusLogic Host Adapter. |
| 1032 | */ |
| 1033 | |
| 1034 | static boolean __init BusLogic_ProbeHostAdapter(struct BusLogic_HostAdapter *HostAdapter) |
| 1035 | { |
| 1036 | union BusLogic_StatusRegister StatusRegister; |
| 1037 | union BusLogic_InterruptRegister InterruptRegister; |
| 1038 | union BusLogic_GeometryRegister GeometryRegister; |
| 1039 | /* |
| 1040 | FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager. |
| 1041 | */ |
| 1042 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) { |
| 1043 | struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo; |
| 1044 | FlashPointInfo->BaseAddress = (u32) HostAdapter->IO_Address; |
| 1045 | FlashPointInfo->IRQ_Channel = HostAdapter->IRQ_Channel; |
| 1046 | FlashPointInfo->Present = false; |
| 1047 | if (!(FlashPoint_ProbeHostAdapter(FlashPointInfo) == 0 && FlashPointInfo->Present)) { |
| 1048 | BusLogic_Error("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", HostAdapter, HostAdapter->Bus, HostAdapter->Device); |
| 1049 | BusLogic_Error("BusLogic: I/O Address 0x%X PCI Address 0x%X, " "but FlashPoint\n", HostAdapter, HostAdapter->IO_Address, HostAdapter->PCI_Address); |
| 1050 | BusLogic_Error("BusLogic: Probe Function failed to validate it.\n", HostAdapter); |
| 1051 | return false; |
| 1052 | } |
| 1053 | if (BusLogic_GlobalOptions.TraceProbe) |
| 1054 | BusLogic_Notice("BusLogic_Probe(0x%X): FlashPoint Found\n", HostAdapter, HostAdapter->IO_Address); |
| 1055 | /* |
| 1056 | Indicate the Host Adapter Probe completed successfully. |
| 1057 | */ |
| 1058 | return true; |
| 1059 | } |
| 1060 | /* |
| 1061 | Read the Status, Interrupt, and Geometry Registers to test if there are I/O |
| 1062 | ports that respond, and to check the values to determine if they are from a |
| 1063 | BusLogic Host Adapter. A nonexistent I/O port will return 0xFF, in which |
| 1064 | case there is definitely no BusLogic Host Adapter at this base I/O Address. |
| 1065 | The test here is a subset of that used by the BusLogic Host Adapter BIOS. |
| 1066 | */ |
| 1067 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); |
| 1068 | InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter); |
| 1069 | GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter); |
| 1070 | if (BusLogic_GlobalOptions.TraceProbe) |
| 1071 | 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); |
| 1072 | if (StatusRegister.All == 0 || StatusRegister.sr.DiagnosticActive || StatusRegister.sr.CommandParameterRegisterBusy || StatusRegister.sr.Reserved || StatusRegister.sr.CommandInvalid || InterruptRegister.ir.Reserved != 0) |
| 1073 | return false; |
| 1074 | /* |
| 1075 | Check the undocumented Geometry Register to test if there is an I/O port |
| 1076 | that responded. Adaptec Host Adapters do not implement the Geometry |
| 1077 | Register, so this test helps serve to avoid incorrectly recognizing an |
| 1078 | Adaptec 1542A or 1542B as a BusLogic. Unfortunately, the Adaptec 1542C |
| 1079 | series does respond to the Geometry Register I/O port, but it will be |
| 1080 | rejected later when the Inquire Extended Setup Information command is |
| 1081 | issued in BusLogic_CheckHostAdapter. The AMI FastDisk Host Adapter is a |
| 1082 | BusLogic clone that implements the same interface as earlier BusLogic |
| 1083 | Host Adapters, including the undocumented commands, and is therefore |
| 1084 | supported by this driver. However, the AMI FastDisk always returns 0x00 |
| 1085 | upon reading the Geometry Register, so the extended translation option |
| 1086 | should always be left disabled on the AMI FastDisk. |
| 1087 | */ |
| 1088 | if (GeometryRegister.All == 0xFF) |
| 1089 | return false; |
| 1090 | /* |
| 1091 | Indicate the Host Adapter Probe completed successfully. |
| 1092 | */ |
| 1093 | return true; |
| 1094 | } |
| 1095 | |
| 1096 | |
| 1097 | /* |
| 1098 | BusLogic_HardwareResetHostAdapter issues a Hardware Reset to the Host Adapter |
| 1099 | and waits for Host Adapter Diagnostics to complete. If HardReset is true, a |
| 1100 | Hard Reset is performed which also initiates a SCSI Bus Reset. Otherwise, a |
| 1101 | Soft Reset is performed which only resets the Host Adapter without forcing a |
| 1102 | SCSI Bus Reset. |
| 1103 | */ |
| 1104 | |
| 1105 | static boolean BusLogic_HardwareResetHostAdapter(struct BusLogic_HostAdapter |
| 1106 | *HostAdapter, boolean HardReset) |
| 1107 | { |
| 1108 | union BusLogic_StatusRegister StatusRegister; |
| 1109 | int TimeoutCounter; |
| 1110 | /* |
| 1111 | FlashPoint Host Adapters are Hard Reset by the FlashPoint SCCB Manager. |
| 1112 | */ |
| 1113 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) { |
| 1114 | struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo; |
| 1115 | FlashPointInfo->HostSoftReset = !HardReset; |
| 1116 | FlashPointInfo->ReportDataUnderrun = true; |
| 1117 | HostAdapter->CardHandle = FlashPoint_HardwareResetHostAdapter(FlashPointInfo); |
| 1118 | if (HostAdapter->CardHandle == FlashPoint_BadCardHandle) |
| 1119 | return false; |
| 1120 | /* |
| 1121 | Indicate the Host Adapter Hard Reset completed successfully. |
| 1122 | */ |
| 1123 | return true; |
| 1124 | } |
| 1125 | /* |
| 1126 | Issue a Hard Reset or Soft Reset Command to the Host Adapter. The Host |
| 1127 | Adapter should respond by setting Diagnostic Active in the Status Register. |
| 1128 | */ |
| 1129 | if (HardReset) |
| 1130 | BusLogic_HardReset(HostAdapter); |
| 1131 | else |
| 1132 | BusLogic_SoftReset(HostAdapter); |
| 1133 | /* |
| 1134 | Wait until Diagnostic Active is set in the Status Register. |
| 1135 | */ |
| 1136 | TimeoutCounter = 5 * 10000; |
| 1137 | while (--TimeoutCounter >= 0) { |
| 1138 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); |
| 1139 | if (StatusRegister.sr.DiagnosticActive) |
| 1140 | break; |
| 1141 | udelay(100); |
| 1142 | } |
| 1143 | if (BusLogic_GlobalOptions.TraceHardwareReset) |
| 1144 | BusLogic_Notice("BusLogic_HardwareReset(0x%X): Diagnostic Active, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All); |
| 1145 | if (TimeoutCounter < 0) |
| 1146 | return false; |
| 1147 | /* |
| 1148 | Wait 100 microseconds to allow completion of any initial diagnostic |
| 1149 | activity which might leave the contents of the Status Register |
| 1150 | unpredictable. |
| 1151 | */ |
| 1152 | udelay(100); |
| 1153 | /* |
| 1154 | Wait until Diagnostic Active is reset in the Status Register. |
| 1155 | */ |
| 1156 | TimeoutCounter = 10 * 10000; |
| 1157 | while (--TimeoutCounter >= 0) { |
| 1158 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); |
| 1159 | if (!StatusRegister.sr.DiagnosticActive) |
| 1160 | break; |
| 1161 | udelay(100); |
| 1162 | } |
| 1163 | if (BusLogic_GlobalOptions.TraceHardwareReset) |
| 1164 | BusLogic_Notice("BusLogic_HardwareReset(0x%X): Diagnostic Completed, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All); |
| 1165 | if (TimeoutCounter < 0) |
| 1166 | return false; |
| 1167 | /* |
| 1168 | Wait until at least one of the Diagnostic Failure, Host Adapter Ready, |
| 1169 | or Data In Register Ready bits is set in the Status Register. |
| 1170 | */ |
| 1171 | TimeoutCounter = 10000; |
| 1172 | while (--TimeoutCounter >= 0) { |
| 1173 | StatusRegister.All = BusLogic_ReadStatusRegister(HostAdapter); |
| 1174 | if (StatusRegister.sr.DiagnosticFailure || StatusRegister.sr.HostAdapterReady || StatusRegister.sr.DataInRegisterReady) |
| 1175 | break; |
| 1176 | udelay(100); |
| 1177 | } |
| 1178 | if (BusLogic_GlobalOptions.TraceHardwareReset) |
| 1179 | BusLogic_Notice("BusLogic_HardwareReset(0x%X): Host Adapter Ready, " "Status 0x%02X\n", HostAdapter, HostAdapter->IO_Address, StatusRegister.All); |
| 1180 | if (TimeoutCounter < 0) |
| 1181 | return false; |
| 1182 | /* |
| 1183 | If Diagnostic Failure is set or Host Adapter Ready is reset, then an |
| 1184 | error occurred during the Host Adapter diagnostics. If Data In Register |
| 1185 | Ready is set, then there is an Error Code available. |
| 1186 | */ |
| 1187 | if (StatusRegister.sr.DiagnosticFailure || !StatusRegister.sr.HostAdapterReady) { |
| 1188 | BusLogic_CommandFailureReason = NULL; |
| 1189 | BusLogic_Failure(HostAdapter, "HARD RESET DIAGNOSTICS"); |
| 1190 | BusLogic_Error("HOST ADAPTER STATUS REGISTER = %02X\n", HostAdapter, StatusRegister.All); |
| 1191 | if (StatusRegister.sr.DataInRegisterReady) { |
| 1192 | unsigned char ErrorCode = BusLogic_ReadDataInRegister(HostAdapter); |
| 1193 | BusLogic_Error("HOST ADAPTER ERROR CODE = %d\n", HostAdapter, ErrorCode); |
| 1194 | } |
| 1195 | return false; |
| 1196 | } |
| 1197 | /* |
| 1198 | Indicate the Host Adapter Hard Reset completed successfully. |
| 1199 | */ |
| 1200 | return true; |
| 1201 | } |
| 1202 | |
| 1203 | |
| 1204 | /* |
| 1205 | BusLogic_CheckHostAdapter checks to be sure this really is a BusLogic |
| 1206 | Host Adapter. |
| 1207 | */ |
| 1208 | |
| 1209 | static boolean __init BusLogic_CheckHostAdapter(struct BusLogic_HostAdapter *HostAdapter) |
| 1210 | { |
| 1211 | struct BusLogic_ExtendedSetupInformation ExtendedSetupInformation; |
| 1212 | unsigned char RequestedReplyLength; |
| 1213 | boolean Result = true; |
| 1214 | /* |
| 1215 | FlashPoint Host Adapters do not require this protection. |
| 1216 | */ |
| 1217 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) |
| 1218 | return true; |
| 1219 | /* |
| 1220 | Issue the Inquire Extended Setup Information command. Only genuine |
| 1221 | BusLogic Host Adapters and true clones support this command. Adaptec 1542C |
| 1222 | series Host Adapters that respond to the Geometry Register I/O port will |
| 1223 | fail this command. |
| 1224 | */ |
| 1225 | RequestedReplyLength = sizeof(ExtendedSetupInformation); |
| 1226 | if (BusLogic_Command(HostAdapter, BusLogic_InquireExtendedSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &ExtendedSetupInformation, sizeof(ExtendedSetupInformation)) |
| 1227 | != sizeof(ExtendedSetupInformation)) |
| 1228 | Result = false; |
| 1229 | /* |
| 1230 | Provide tracing information if requested and return. |
| 1231 | */ |
| 1232 | if (BusLogic_GlobalOptions.TraceProbe) |
| 1233 | BusLogic_Notice("BusLogic_Check(0x%X): MultiMaster %s\n", HostAdapter, HostAdapter->IO_Address, (Result ? "Found" : "Not Found")); |
| 1234 | return Result; |
| 1235 | } |
| 1236 | |
| 1237 | |
| 1238 | /* |
| 1239 | BusLogic_ReadHostAdapterConfiguration reads the Configuration Information |
| 1240 | from Host Adapter and initializes the Host Adapter structure. |
| 1241 | */ |
| 1242 | |
| 1243 | static boolean __init BusLogic_ReadHostAdapterConfiguration(struct BusLogic_HostAdapter |
| 1244 | *HostAdapter) |
| 1245 | { |
| 1246 | struct BusLogic_BoardID BoardID; |
| 1247 | struct BusLogic_Configuration Configuration; |
| 1248 | struct BusLogic_SetupInformation SetupInformation; |
| 1249 | struct BusLogic_ExtendedSetupInformation ExtendedSetupInformation; |
| 1250 | unsigned char HostAdapterModelNumber[5]; |
| 1251 | unsigned char FirmwareVersion3rdDigit; |
| 1252 | unsigned char FirmwareVersionLetter; |
| 1253 | struct BusLogic_PCIHostAdapterInformation PCIHostAdapterInformation; |
| 1254 | struct BusLogic_FetchHostAdapterLocalRAMRequest FetchHostAdapterLocalRAMRequest; |
| 1255 | struct BusLogic_AutoSCSIData AutoSCSIData; |
| 1256 | union BusLogic_GeometryRegister GeometryRegister; |
| 1257 | unsigned char RequestedReplyLength; |
| 1258 | unsigned char *TargetPointer, Character; |
| 1259 | int TargetID, i; |
| 1260 | /* |
| 1261 | Configuration Information for FlashPoint Host Adapters is provided in the |
| 1262 | FlashPoint_Info structure by the FlashPoint SCCB Manager's Probe Function. |
| 1263 | Initialize fields in the Host Adapter structure from the FlashPoint_Info |
| 1264 | structure. |
| 1265 | */ |
| 1266 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) { |
| 1267 | struct FlashPoint_Info *FlashPointInfo = &HostAdapter->FlashPointInfo; |
| 1268 | TargetPointer = HostAdapter->ModelName; |
| 1269 | *TargetPointer++ = 'B'; |
| 1270 | *TargetPointer++ = 'T'; |
| 1271 | *TargetPointer++ = '-'; |
| 1272 | for (i = 0; i < sizeof(FlashPointInfo->ModelNumber); i++) |
| 1273 | *TargetPointer++ = FlashPointInfo->ModelNumber[i]; |
| 1274 | *TargetPointer++ = '\0'; |
| 1275 | strcpy(HostAdapter->FirmwareVersion, FlashPoint_FirmwareVersion); |
| 1276 | HostAdapter->SCSI_ID = FlashPointInfo->SCSI_ID; |
| 1277 | HostAdapter->ExtendedTranslationEnabled = FlashPointInfo->ExtendedTranslationEnabled; |
| 1278 | HostAdapter->ParityCheckingEnabled = FlashPointInfo->ParityCheckingEnabled; |
| 1279 | HostAdapter->BusResetEnabled = !FlashPointInfo->HostSoftReset; |
| 1280 | HostAdapter->LevelSensitiveInterrupt = true; |
| 1281 | HostAdapter->HostWideSCSI = FlashPointInfo->HostWideSCSI; |
| 1282 | HostAdapter->HostDifferentialSCSI = false; |
| 1283 | HostAdapter->HostSupportsSCAM = true; |
| 1284 | HostAdapter->HostUltraSCSI = true; |
| 1285 | HostAdapter->ExtendedLUNSupport = true; |
| 1286 | HostAdapter->TerminationInfoValid = true; |
| 1287 | HostAdapter->LowByteTerminated = FlashPointInfo->LowByteTerminated; |
| 1288 | HostAdapter->HighByteTerminated = FlashPointInfo->HighByteTerminated; |
| 1289 | HostAdapter->SCAM_Enabled = FlashPointInfo->SCAM_Enabled; |
| 1290 | HostAdapter->SCAM_Level2 = FlashPointInfo->SCAM_Level2; |
| 1291 | HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit; |
| 1292 | HostAdapter->MaxTargetDevices = (HostAdapter->HostWideSCSI ? 16 : 8); |
| 1293 | HostAdapter->MaxLogicalUnits = 32; |
| 1294 | HostAdapter->InitialCCBs = 4 * BusLogic_CCB_AllocationGroupSize; |
| 1295 | HostAdapter->IncrementalCCBs = BusLogic_CCB_AllocationGroupSize; |
| 1296 | HostAdapter->DriverQueueDepth = 255; |
| 1297 | HostAdapter->HostAdapterQueueDepth = HostAdapter->DriverQueueDepth; |
| 1298 | HostAdapter->SynchronousPermitted = FlashPointInfo->SynchronousPermitted; |
| 1299 | HostAdapter->FastPermitted = FlashPointInfo->FastPermitted; |
| 1300 | HostAdapter->UltraPermitted = FlashPointInfo->UltraPermitted; |
| 1301 | HostAdapter->WidePermitted = FlashPointInfo->WidePermitted; |
| 1302 | HostAdapter->DisconnectPermitted = FlashPointInfo->DisconnectPermitted; |
| 1303 | HostAdapter->TaggedQueuingPermitted = 0xFFFF; |
| 1304 | goto Common; |
| 1305 | } |
| 1306 | /* |
| 1307 | Issue the Inquire Board ID command. |
| 1308 | */ |
| 1309 | if (BusLogic_Command(HostAdapter, BusLogic_InquireBoardID, NULL, 0, &BoardID, sizeof(BoardID)) != sizeof(BoardID)) |
| 1310 | return BusLogic_Failure(HostAdapter, "INQUIRE BOARD ID"); |
| 1311 | /* |
| 1312 | Issue the Inquire Configuration command. |
| 1313 | */ |
| 1314 | if (BusLogic_Command(HostAdapter, BusLogic_InquireConfiguration, NULL, 0, &Configuration, sizeof(Configuration)) |
| 1315 | != sizeof(Configuration)) |
| 1316 | return BusLogic_Failure(HostAdapter, "INQUIRE CONFIGURATION"); |
| 1317 | /* |
| 1318 | Issue the Inquire Setup Information command. |
| 1319 | */ |
| 1320 | RequestedReplyLength = sizeof(SetupInformation); |
| 1321 | if (BusLogic_Command(HostAdapter, BusLogic_InquireSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &SetupInformation, sizeof(SetupInformation)) |
| 1322 | != sizeof(SetupInformation)) |
| 1323 | return BusLogic_Failure(HostAdapter, "INQUIRE SETUP INFORMATION"); |
| 1324 | /* |
| 1325 | Issue the Inquire Extended Setup Information command. |
| 1326 | */ |
| 1327 | RequestedReplyLength = sizeof(ExtendedSetupInformation); |
| 1328 | if (BusLogic_Command(HostAdapter, BusLogic_InquireExtendedSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &ExtendedSetupInformation, sizeof(ExtendedSetupInformation)) |
| 1329 | != sizeof(ExtendedSetupInformation)) |
| 1330 | return BusLogic_Failure(HostAdapter, "INQUIRE EXTENDED SETUP INFORMATION"); |
| 1331 | /* |
| 1332 | Issue the Inquire Firmware Version 3rd Digit command. |
| 1333 | */ |
| 1334 | FirmwareVersion3rdDigit = '\0'; |
| 1335 | if (BoardID.FirmwareVersion1stDigit > '0') |
| 1336 | if (BusLogic_Command(HostAdapter, BusLogic_InquireFirmwareVersion3rdDigit, NULL, 0, &FirmwareVersion3rdDigit, sizeof(FirmwareVersion3rdDigit)) |
| 1337 | != sizeof(FirmwareVersion3rdDigit)) |
| 1338 | return BusLogic_Failure(HostAdapter, "INQUIRE FIRMWARE 3RD DIGIT"); |
| 1339 | /* |
| 1340 | Issue the Inquire Host Adapter Model Number command. |
| 1341 | */ |
| 1342 | if (ExtendedSetupInformation.BusType == 'A' && BoardID.FirmwareVersion1stDigit == '2') |
| 1343 | /* BusLogic BT-542B ISA 2.xx */ |
| 1344 | strcpy(HostAdapterModelNumber, "542B"); |
| 1345 | else if (ExtendedSetupInformation.BusType == 'E' && BoardID.FirmwareVersion1stDigit == '2' && (BoardID.FirmwareVersion2ndDigit <= '1' || (BoardID.FirmwareVersion2ndDigit == '2' && FirmwareVersion3rdDigit == '0'))) |
| 1346 | /* BusLogic BT-742A EISA 2.1x or 2.20 */ |
| 1347 | strcpy(HostAdapterModelNumber, "742A"); |
| 1348 | else if (ExtendedSetupInformation.BusType == 'E' && BoardID.FirmwareVersion1stDigit == '0') |
| 1349 | /* AMI FastDisk EISA Series 441 0.x */ |
| 1350 | strcpy(HostAdapterModelNumber, "747A"); |
| 1351 | else { |
| 1352 | RequestedReplyLength = sizeof(HostAdapterModelNumber); |
| 1353 | if (BusLogic_Command(HostAdapter, BusLogic_InquireHostAdapterModelNumber, &RequestedReplyLength, sizeof(RequestedReplyLength), &HostAdapterModelNumber, sizeof(HostAdapterModelNumber)) |
| 1354 | != sizeof(HostAdapterModelNumber)) |
| 1355 | return BusLogic_Failure(HostAdapter, "INQUIRE HOST ADAPTER MODEL NUMBER"); |
| 1356 | } |
| 1357 | /* |
| 1358 | BusLogic MultiMaster Host Adapters can be identified by their model number |
| 1359 | and the major version number of their firmware as follows: |
| 1360 | |
| 1361 | 5.xx BusLogic "W" Series Host Adapters: |
| 1362 | BT-948/958/958D |
| 1363 | 4.xx BusLogic "C" Series Host Adapters: |
| 1364 | BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF |
| 1365 | 3.xx BusLogic "S" Series Host Adapters: |
| 1366 | BT-747S/747D/757S/757D/445S/545S/542D |
| 1367 | BT-542B/742A (revision H) |
| 1368 | 2.xx BusLogic "A" Series Host Adapters: |
| 1369 | BT-542B/742A (revision G and below) |
| 1370 | 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter |
| 1371 | */ |
| 1372 | /* |
| 1373 | Save the Model Name and Host Adapter Name in the Host Adapter structure. |
| 1374 | */ |
| 1375 | TargetPointer = HostAdapter->ModelName; |
| 1376 | *TargetPointer++ = 'B'; |
| 1377 | *TargetPointer++ = 'T'; |
| 1378 | *TargetPointer++ = '-'; |
| 1379 | for (i = 0; i < sizeof(HostAdapterModelNumber); i++) { |
| 1380 | Character = HostAdapterModelNumber[i]; |
| 1381 | if (Character == ' ' || Character == '\0') |
| 1382 | break; |
| 1383 | *TargetPointer++ = Character; |
| 1384 | } |
| 1385 | *TargetPointer++ = '\0'; |
| 1386 | /* |
| 1387 | Save the Firmware Version in the Host Adapter structure. |
| 1388 | */ |
| 1389 | TargetPointer = HostAdapter->FirmwareVersion; |
| 1390 | *TargetPointer++ = BoardID.FirmwareVersion1stDigit; |
| 1391 | *TargetPointer++ = '.'; |
| 1392 | *TargetPointer++ = BoardID.FirmwareVersion2ndDigit; |
| 1393 | if (FirmwareVersion3rdDigit != ' ' && FirmwareVersion3rdDigit != '\0') |
| 1394 | *TargetPointer++ = FirmwareVersion3rdDigit; |
| 1395 | *TargetPointer = '\0'; |
| 1396 | /* |
| 1397 | Issue the Inquire Firmware Version Letter command. |
| 1398 | */ |
| 1399 | if (strcmp(HostAdapter->FirmwareVersion, "3.3") >= 0) { |
| 1400 | if (BusLogic_Command(HostAdapter, BusLogic_InquireFirmwareVersionLetter, NULL, 0, &FirmwareVersionLetter, sizeof(FirmwareVersionLetter)) |
| 1401 | != sizeof(FirmwareVersionLetter)) |
| 1402 | return BusLogic_Failure(HostAdapter, "INQUIRE FIRMWARE VERSION LETTER"); |
| 1403 | if (FirmwareVersionLetter != ' ' && FirmwareVersionLetter != '\0') |
| 1404 | *TargetPointer++ = FirmwareVersionLetter; |
| 1405 | *TargetPointer = '\0'; |
| 1406 | } |
| 1407 | /* |
| 1408 | Save the Host Adapter SCSI ID in the Host Adapter structure. |
| 1409 | */ |
| 1410 | HostAdapter->SCSI_ID = Configuration.HostAdapterID; |
| 1411 | /* |
| 1412 | Determine the Bus Type and save it in the Host Adapter structure, determine |
| 1413 | and save the IRQ Channel if necessary, and determine and save the DMA |
| 1414 | Channel for ISA Host Adapters. |
| 1415 | */ |
| 1416 | HostAdapter->HostAdapterBusType = BusLogic_HostAdapterBusTypes[HostAdapter->ModelName[3] - '4']; |
| 1417 | if (HostAdapter->IRQ_Channel == 0) { |
| 1418 | if (Configuration.IRQ_Channel9) |
| 1419 | HostAdapter->IRQ_Channel = 9; |
| 1420 | else if (Configuration.IRQ_Channel10) |
| 1421 | HostAdapter->IRQ_Channel = 10; |
| 1422 | else if (Configuration.IRQ_Channel11) |
| 1423 | HostAdapter->IRQ_Channel = 11; |
| 1424 | else if (Configuration.IRQ_Channel12) |
| 1425 | HostAdapter->IRQ_Channel = 12; |
| 1426 | else if (Configuration.IRQ_Channel14) |
| 1427 | HostAdapter->IRQ_Channel = 14; |
| 1428 | else if (Configuration.IRQ_Channel15) |
| 1429 | HostAdapter->IRQ_Channel = 15; |
| 1430 | } |
| 1431 | if (HostAdapter->HostAdapterBusType == BusLogic_ISA_Bus) { |
| 1432 | if (Configuration.DMA_Channel5) |
| 1433 | HostAdapter->DMA_Channel = 5; |
| 1434 | else if (Configuration.DMA_Channel6) |
| 1435 | HostAdapter->DMA_Channel = 6; |
| 1436 | else if (Configuration.DMA_Channel7) |
| 1437 | HostAdapter->DMA_Channel = 7; |
| 1438 | } |
| 1439 | /* |
| 1440 | Determine whether Extended Translation is enabled and save it in |
| 1441 | the Host Adapter structure. |
| 1442 | */ |
| 1443 | GeometryRegister.All = BusLogic_ReadGeometryRegister(HostAdapter); |
| 1444 | HostAdapter->ExtendedTranslationEnabled = GeometryRegister.gr.ExtendedTranslationEnabled; |
| 1445 | /* |
| 1446 | Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide |
| 1447 | SCSI flag, Differential SCSI flag, SCAM Supported flag, and |
| 1448 | Ultra SCSI flag in the Host Adapter structure. |
| 1449 | */ |
| 1450 | HostAdapter->HostAdapterScatterGatherLimit = ExtendedSetupInformation.ScatterGatherLimit; |
| 1451 | HostAdapter->DriverScatterGatherLimit = HostAdapter->HostAdapterScatterGatherLimit; |
| 1452 | if (HostAdapter->HostAdapterScatterGatherLimit > BusLogic_ScatterGatherLimit) |
| 1453 | HostAdapter->DriverScatterGatherLimit = BusLogic_ScatterGatherLimit; |
| 1454 | if (ExtendedSetupInformation.Misc.LevelSensitiveInterrupt) |
| 1455 | HostAdapter->LevelSensitiveInterrupt = true; |
| 1456 | HostAdapter->HostWideSCSI = ExtendedSetupInformation.HostWideSCSI; |
| 1457 | HostAdapter->HostDifferentialSCSI = ExtendedSetupInformation.HostDifferentialSCSI; |
| 1458 | HostAdapter->HostSupportsSCAM = ExtendedSetupInformation.HostSupportsSCAM; |
| 1459 | HostAdapter->HostUltraSCSI = ExtendedSetupInformation.HostUltraSCSI; |
| 1460 | /* |
| 1461 | Determine whether Extended LUN Format CCBs are supported and save the |
| 1462 | information in the Host Adapter structure. |
| 1463 | */ |
| 1464 | if (HostAdapter->FirmwareVersion[0] == '5' || (HostAdapter->FirmwareVersion[0] == '4' && HostAdapter->HostWideSCSI)) |
| 1465 | HostAdapter->ExtendedLUNSupport = true; |
| 1466 | /* |
| 1467 | Issue the Inquire PCI Host Adapter Information command to read the |
| 1468 | Termination Information from "W" series MultiMaster Host Adapters. |
| 1469 | */ |
| 1470 | if (HostAdapter->FirmwareVersion[0] == '5') { |
| 1471 | if (BusLogic_Command(HostAdapter, BusLogic_InquirePCIHostAdapterInformation, NULL, 0, &PCIHostAdapterInformation, sizeof(PCIHostAdapterInformation)) |
| 1472 | != sizeof(PCIHostAdapterInformation)) |
| 1473 | return BusLogic_Failure(HostAdapter, "INQUIRE PCI HOST ADAPTER INFORMATION"); |
| 1474 | /* |
| 1475 | Save the Termination Information in the Host Adapter structure. |
| 1476 | */ |
| 1477 | if (PCIHostAdapterInformation.GenericInfoValid) { |
| 1478 | HostAdapter->TerminationInfoValid = true; |
| 1479 | HostAdapter->LowByteTerminated = PCIHostAdapterInformation.LowByteTerminated; |
| 1480 | HostAdapter->HighByteTerminated = PCIHostAdapterInformation.HighByteTerminated; |
| 1481 | } |
| 1482 | } |
| 1483 | /* |
| 1484 | Issue the Fetch Host Adapter Local RAM command to read the AutoSCSI data |
| 1485 | from "W" and "C" series MultiMaster Host Adapters. |
| 1486 | */ |
| 1487 | if (HostAdapter->FirmwareVersion[0] >= '4') { |
| 1488 | FetchHostAdapterLocalRAMRequest.ByteOffset = BusLogic_AutoSCSI_BaseOffset; |
| 1489 | FetchHostAdapterLocalRAMRequest.ByteCount = sizeof(AutoSCSIData); |
| 1490 | if (BusLogic_Command(HostAdapter, BusLogic_FetchHostAdapterLocalRAM, &FetchHostAdapterLocalRAMRequest, sizeof(FetchHostAdapterLocalRAMRequest), &AutoSCSIData, sizeof(AutoSCSIData)) |
| 1491 | != sizeof(AutoSCSIData)) |
| 1492 | return BusLogic_Failure(HostAdapter, "FETCH HOST ADAPTER LOCAL RAM"); |
| 1493 | /* |
| 1494 | Save the Parity Checking Enabled, Bus Reset Enabled, and Termination |
| 1495 | Information in the Host Adapter structure. |
| 1496 | */ |
| 1497 | HostAdapter->ParityCheckingEnabled = AutoSCSIData.ParityCheckingEnabled; |
| 1498 | HostAdapter->BusResetEnabled = AutoSCSIData.BusResetEnabled; |
| 1499 | if (HostAdapter->FirmwareVersion[0] == '4') { |
| 1500 | HostAdapter->TerminationInfoValid = true; |
| 1501 | HostAdapter->LowByteTerminated = AutoSCSIData.LowByteTerminated; |
| 1502 | HostAdapter->HighByteTerminated = AutoSCSIData.HighByteTerminated; |
| 1503 | } |
| 1504 | /* |
| 1505 | Save the Wide Permitted, Fast Permitted, Synchronous Permitted, |
| 1506 | Disconnect Permitted, Ultra Permitted, and SCAM Information in the |
| 1507 | Host Adapter structure. |
| 1508 | */ |
| 1509 | HostAdapter->WidePermitted = AutoSCSIData.WidePermitted; |
| 1510 | HostAdapter->FastPermitted = AutoSCSIData.FastPermitted; |
| 1511 | HostAdapter->SynchronousPermitted = AutoSCSIData.SynchronousPermitted; |
| 1512 | HostAdapter->DisconnectPermitted = AutoSCSIData.DisconnectPermitted; |
| 1513 | if (HostAdapter->HostUltraSCSI) |
| 1514 | HostAdapter->UltraPermitted = AutoSCSIData.UltraPermitted; |
| 1515 | if (HostAdapter->HostSupportsSCAM) { |
| 1516 | HostAdapter->SCAM_Enabled = AutoSCSIData.SCAM_Enabled; |
| 1517 | HostAdapter->SCAM_Level2 = AutoSCSIData.SCAM_Level2; |
| 1518 | } |
| 1519 | } |
| 1520 | /* |
| 1521 | Initialize fields in the Host Adapter structure for "S" and "A" series |
| 1522 | MultiMaster Host Adapters. |
| 1523 | */ |
| 1524 | if (HostAdapter->FirmwareVersion[0] < '4') { |
| 1525 | if (SetupInformation.SynchronousInitiationEnabled) { |
| 1526 | HostAdapter->SynchronousPermitted = 0xFF; |
| 1527 | if (HostAdapter->HostAdapterBusType == BusLogic_EISA_Bus) { |
| 1528 | if (ExtendedSetupInformation.Misc.FastOnEISA) |
| 1529 | HostAdapter->FastPermitted = 0xFF; |
| 1530 | if (strcmp(HostAdapter->ModelName, "BT-757") == 0) |
| 1531 | HostAdapter->WidePermitted = 0xFF; |
| 1532 | } |
| 1533 | } |
| 1534 | HostAdapter->DisconnectPermitted = 0xFF; |
| 1535 | HostAdapter->ParityCheckingEnabled = SetupInformation.ParityCheckingEnabled; |
| 1536 | HostAdapter->BusResetEnabled = true; |
| 1537 | } |
| 1538 | /* |
| 1539 | Determine the maximum number of Target IDs and Logical Units supported by |
| 1540 | this driver for Wide and Narrow Host Adapters. |
| 1541 | */ |
| 1542 | HostAdapter->MaxTargetDevices = (HostAdapter->HostWideSCSI ? 16 : 8); |
| 1543 | HostAdapter->MaxLogicalUnits = (HostAdapter->ExtendedLUNSupport ? 32 : 8); |
| 1544 | /* |
| 1545 | Select appropriate values for the Mailbox Count, Driver Queue Depth, |
| 1546 | Initial CCBs, and Incremental CCBs variables based on whether or not Strict |
| 1547 | Round Robin Mode is supported. If Strict Round Robin Mode is supported, |
| 1548 | then there is no performance degradation in using the maximum possible |
| 1549 | number of Outgoing and Incoming Mailboxes and allowing the Tagged and |
| 1550 | Untagged Queue Depths to determine the actual utilization. If Strict Round |
| 1551 | Robin Mode is not supported, then the Host Adapter must scan all the |
| 1552 | Outgoing Mailboxes whenever an Outgoing Mailbox entry is made, which can |
| 1553 | cause a substantial performance penalty. The host adapters actually have |
| 1554 | room to store the following number of CCBs internally; that is, they can |
| 1555 | internally queue and manage this many active commands on the SCSI bus |
| 1556 | simultaneously. Performance measurements demonstrate that the Driver Queue |
| 1557 | Depth should be set to the Mailbox Count, rather than the Host Adapter |
| 1558 | Queue Depth (internal CCB capacity), as it is more efficient to have the |
| 1559 | queued commands waiting in Outgoing Mailboxes if necessary than to block |
| 1560 | the process in the higher levels of the SCSI Subsystem. |
| 1561 | |
| 1562 | 192 BT-948/958/958D |
| 1563 | 100 BT-946C/956C/956CD/747C/757C/757CD/445C |
| 1564 | 50 BT-545C/540CF |
| 1565 | 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A |
| 1566 | */ |
| 1567 | if (HostAdapter->FirmwareVersion[0] == '5') |
| 1568 | HostAdapter->HostAdapterQueueDepth = 192; |
| 1569 | else if (HostAdapter->FirmwareVersion[0] == '4') |
| 1570 | HostAdapter->HostAdapterQueueDepth = (HostAdapter->HostAdapterBusType != BusLogic_ISA_Bus ? 100 : 50); |
| 1571 | else |
| 1572 | HostAdapter->HostAdapterQueueDepth = 30; |
| 1573 | if (strcmp(HostAdapter->FirmwareVersion, "3.31") >= 0) { |
| 1574 | HostAdapter->StrictRoundRobinModeSupport = true; |
| 1575 | HostAdapter->MailboxCount = BusLogic_MaxMailboxes; |
| 1576 | } else { |
| 1577 | HostAdapter->StrictRoundRobinModeSupport = false; |
| 1578 | HostAdapter->MailboxCount = 32; |
| 1579 | } |
| 1580 | HostAdapter->DriverQueueDepth = HostAdapter->MailboxCount; |
| 1581 | HostAdapter->InitialCCBs = 4 * BusLogic_CCB_AllocationGroupSize; |
| 1582 | HostAdapter->IncrementalCCBs = BusLogic_CCB_AllocationGroupSize; |
| 1583 | /* |
| 1584 | Tagged Queuing support is available and operates properly on all "W" series |
| 1585 | MultiMaster Host Adapters, on "C" series MultiMaster Host Adapters with |
| 1586 | firmware version 4.22 and above, and on "S" series MultiMaster Host |
| 1587 | Adapters with firmware version 3.35 and above. |
| 1588 | */ |
| 1589 | HostAdapter->TaggedQueuingPermitted = 0; |
| 1590 | switch (HostAdapter->FirmwareVersion[0]) { |
| 1591 | case '5': |
| 1592 | HostAdapter->TaggedQueuingPermitted = 0xFFFF; |
| 1593 | break; |
| 1594 | case '4': |
| 1595 | if (strcmp(HostAdapter->FirmwareVersion, "4.22") >= 0) |
| 1596 | HostAdapter->TaggedQueuingPermitted = 0xFFFF; |
| 1597 | break; |
| 1598 | case '3': |
| 1599 | if (strcmp(HostAdapter->FirmwareVersion, "3.35") >= 0) |
| 1600 | HostAdapter->TaggedQueuingPermitted = 0xFFFF; |
| 1601 | break; |
| 1602 | } |
| 1603 | /* |
| 1604 | Determine the Host Adapter BIOS Address if the BIOS is enabled and |
| 1605 | save it in the Host Adapter structure. The BIOS is disabled if the |
| 1606 | BIOS_Address is 0. |
| 1607 | */ |
| 1608 | HostAdapter->BIOS_Address = ExtendedSetupInformation.BIOS_Address << 12; |
| 1609 | /* |
| 1610 | ISA Host Adapters require Bounce Buffers if there is more than 16MB memory. |
| 1611 | */ |
| 1612 | if (HostAdapter->HostAdapterBusType == BusLogic_ISA_Bus && (void *) high_memory > (void *) MAX_DMA_ADDRESS) |
| 1613 | HostAdapter->BounceBuffersRequired = true; |
| 1614 | /* |
| 1615 | BusLogic BT-445S Host Adapters prior to board revision E have a hardware |
| 1616 | bug whereby when the BIOS is enabled, transfers to/from the same address |
| 1617 | range the BIOS occupies modulo 16MB are handled incorrectly. Only properly |
| 1618 | functioning BT-445S Host Adapters have firmware version 3.37, so require |
| 1619 | that ISA Bounce Buffers be used for the buggy BT-445S models if there is |
| 1620 | more than 16MB memory. |
| 1621 | */ |
| 1622 | if (HostAdapter->BIOS_Address > 0 && strcmp(HostAdapter->ModelName, "BT-445S") == 0 && strcmp(HostAdapter->FirmwareVersion, "3.37") < 0 && (void *) high_memory > (void *) MAX_DMA_ADDRESS) |
| 1623 | HostAdapter->BounceBuffersRequired = true; |
| 1624 | /* |
| 1625 | Initialize parameters common to MultiMaster and FlashPoint Host Adapters. |
| 1626 | */ |
| 1627 | Common: |
| 1628 | /* |
| 1629 | Initialize the Host Adapter Full Model Name from the Model Name. |
| 1630 | */ |
| 1631 | strcpy(HostAdapter->FullModelName, "BusLogic "); |
| 1632 | strcat(HostAdapter->FullModelName, HostAdapter->ModelName); |
| 1633 | /* |
| 1634 | Select an appropriate value for the Tagged Queue Depth either from a |
| 1635 | BusLogic Driver Options specification, or based on whether this Host |
| 1636 | Adapter requires that ISA Bounce Buffers be used. The Tagged Queue Depth |
| 1637 | is left at 0 for automatic determination in BusLogic_SelectQueueDepths. |
| 1638 | Initialize the Untagged Queue Depth. |
| 1639 | */ |
| 1640 | for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) { |
| 1641 | unsigned char QueueDepth = 0; |
| 1642 | if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->QueueDepth[TargetID] > 0) |
| 1643 | QueueDepth = HostAdapter->DriverOptions->QueueDepth[TargetID]; |
| 1644 | else if (HostAdapter->BounceBuffersRequired) |
| 1645 | QueueDepth = BusLogic_TaggedQueueDepthBB; |
| 1646 | HostAdapter->QueueDepth[TargetID] = QueueDepth; |
| 1647 | } |
| 1648 | if (HostAdapter->BounceBuffersRequired) |
| 1649 | HostAdapter->UntaggedQueueDepth = BusLogic_UntaggedQueueDepthBB; |
| 1650 | else |
| 1651 | HostAdapter->UntaggedQueueDepth = BusLogic_UntaggedQueueDepth; |
| 1652 | if (HostAdapter->DriverOptions != NULL) |
| 1653 | HostAdapter->CommonQueueDepth = HostAdapter->DriverOptions->CommonQueueDepth; |
| 1654 | if (HostAdapter->CommonQueueDepth > 0 && HostAdapter->CommonQueueDepth < HostAdapter->UntaggedQueueDepth) |
| 1655 | HostAdapter->UntaggedQueueDepth = HostAdapter->CommonQueueDepth; |
| 1656 | /* |
| 1657 | Tagged Queuing is only allowed if Disconnect/Reconnect is permitted. |
| 1658 | Therefore, mask the Tagged Queuing Permitted Default bits with the |
| 1659 | Disconnect/Reconnect Permitted bits. |
| 1660 | */ |
| 1661 | HostAdapter->TaggedQueuingPermitted &= HostAdapter->DisconnectPermitted; |
| 1662 | /* |
| 1663 | Combine the default Tagged Queuing Permitted bits with any BusLogic Driver |
| 1664 | Options Tagged Queuing specification. |
| 1665 | */ |
| 1666 | if (HostAdapter->DriverOptions != NULL) |
| 1667 | HostAdapter->TaggedQueuingPermitted = |
| 1668 | (HostAdapter->DriverOptions->TaggedQueuingPermitted & HostAdapter->DriverOptions->TaggedQueuingPermittedMask) | (HostAdapter->TaggedQueuingPermitted & ~HostAdapter->DriverOptions->TaggedQueuingPermittedMask); |
| 1669 | |
| 1670 | /* |
| 1671 | Select an appropriate value for Bus Settle Time either from a BusLogic |
| 1672 | Driver Options specification, or from BusLogic_DefaultBusSettleTime. |
| 1673 | */ |
| 1674 | if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->BusSettleTime > 0) |
| 1675 | HostAdapter->BusSettleTime = HostAdapter->DriverOptions->BusSettleTime; |
| 1676 | else |
| 1677 | HostAdapter->BusSettleTime = BusLogic_DefaultBusSettleTime; |
| 1678 | /* |
| 1679 | Indicate reading the Host Adapter Configuration completed successfully. |
| 1680 | */ |
| 1681 | return true; |
| 1682 | } |
| 1683 | |
| 1684 | |
| 1685 | /* |
| 1686 | BusLogic_ReportHostAdapterConfiguration reports the configuration of |
| 1687 | Host Adapter. |
| 1688 | */ |
| 1689 | |
| 1690 | static boolean __init BusLogic_ReportHostAdapterConfiguration(struct BusLogic_HostAdapter |
| 1691 | *HostAdapter) |
| 1692 | { |
| 1693 | unsigned short AllTargetsMask = (1 << HostAdapter->MaxTargetDevices) - 1; |
| 1694 | unsigned short SynchronousPermitted, FastPermitted; |
| 1695 | unsigned short UltraPermitted, WidePermitted; |
| 1696 | unsigned short DisconnectPermitted, TaggedQueuingPermitted; |
| 1697 | boolean CommonSynchronousNegotiation, CommonTaggedQueueDepth; |
| 1698 | char SynchronousString[BusLogic_MaxTargetDevices + 1]; |
| 1699 | char WideString[BusLogic_MaxTargetDevices + 1]; |
| 1700 | char DisconnectString[BusLogic_MaxTargetDevices + 1]; |
| 1701 | char TaggedQueuingString[BusLogic_MaxTargetDevices + 1]; |
| 1702 | char *SynchronousMessage = SynchronousString; |
| 1703 | char *WideMessage = WideString; |
| 1704 | char *DisconnectMessage = DisconnectString; |
| 1705 | char *TaggedQueuingMessage = TaggedQueuingString; |
| 1706 | int TargetID; |
| 1707 | BusLogic_Info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n", |
| 1708 | HostAdapter, HostAdapter->ModelName, |
| 1709 | BusLogic_HostAdapterBusNames[HostAdapter->HostAdapterBusType], (HostAdapter->HostWideSCSI ? " Wide" : ""), (HostAdapter->HostDifferentialSCSI ? " Differential" : ""), (HostAdapter->HostUltraSCSI ? " Ultra" : "")); |
| 1710 | 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")); |
| 1711 | if (HostAdapter->HostAdapterBusType != BusLogic_PCI_Bus) { |
| 1712 | BusLogic_Info(" DMA Channel: ", HostAdapter); |
| 1713 | if (HostAdapter->DMA_Channel > 0) |
| 1714 | BusLogic_Info("%d, ", HostAdapter, HostAdapter->DMA_Channel); |
| 1715 | else |
| 1716 | BusLogic_Info("None, ", HostAdapter); |
| 1717 | if (HostAdapter->BIOS_Address > 0) |
| 1718 | BusLogic_Info("BIOS Address: 0x%X, ", HostAdapter, HostAdapter->BIOS_Address); |
| 1719 | else |
| 1720 | BusLogic_Info("BIOS Address: None, ", HostAdapter); |
| 1721 | } else { |
| 1722 | BusLogic_Info(" PCI Bus: %d, Device: %d, Address: ", HostAdapter, HostAdapter->Bus, HostAdapter->Device); |
| 1723 | if (HostAdapter->PCI_Address > 0) |
| 1724 | BusLogic_Info("0x%X, ", HostAdapter, HostAdapter->PCI_Address); |
| 1725 | else |
| 1726 | BusLogic_Info("Unassigned, ", HostAdapter); |
| 1727 | } |
| 1728 | BusLogic_Info("Host Adapter SCSI ID: %d\n", HostAdapter, HostAdapter->SCSI_ID); |
| 1729 | BusLogic_Info(" Parity Checking: %s, Extended Translation: %s\n", HostAdapter, (HostAdapter->ParityCheckingEnabled ? "Enabled" : "Disabled"), (HostAdapter->ExtendedTranslationEnabled ? "Enabled" : "Disabled")); |
| 1730 | AllTargetsMask &= ~(1 << HostAdapter->SCSI_ID); |
| 1731 | SynchronousPermitted = HostAdapter->SynchronousPermitted & AllTargetsMask; |
| 1732 | FastPermitted = HostAdapter->FastPermitted & AllTargetsMask; |
| 1733 | UltraPermitted = HostAdapter->UltraPermitted & AllTargetsMask; |
| 1734 | if ((BusLogic_MultiMasterHostAdapterP(HostAdapter) && (HostAdapter->FirmwareVersion[0] >= '4' || HostAdapter->HostAdapterBusType == BusLogic_EISA_Bus)) || BusLogic_FlashPointHostAdapterP(HostAdapter)) { |
| 1735 | CommonSynchronousNegotiation = false; |
| 1736 | if (SynchronousPermitted == 0) { |
| 1737 | SynchronousMessage = "Disabled"; |
| 1738 | CommonSynchronousNegotiation = true; |
| 1739 | } else if (SynchronousPermitted == AllTargetsMask) { |
| 1740 | if (FastPermitted == 0) { |
| 1741 | SynchronousMessage = "Slow"; |
| 1742 | CommonSynchronousNegotiation = true; |
| 1743 | } else if (FastPermitted == AllTargetsMask) { |
| 1744 | if (UltraPermitted == 0) { |
| 1745 | SynchronousMessage = "Fast"; |
| 1746 | CommonSynchronousNegotiation = true; |
| 1747 | } else if (UltraPermitted == AllTargetsMask) { |
| 1748 | SynchronousMessage = "Ultra"; |
| 1749 | CommonSynchronousNegotiation = true; |
| 1750 | } |
| 1751 | } |
| 1752 | } |
| 1753 | if (!CommonSynchronousNegotiation) { |
| 1754 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 1755 | SynchronousString[TargetID] = ((!(SynchronousPermitted & (1 << TargetID))) ? 'N' : (!(FastPermitted & (1 << TargetID)) ? 'S' : (!(UltraPermitted & (1 << TargetID)) ? 'F' : 'U'))); |
| 1756 | SynchronousString[HostAdapter->SCSI_ID] = '#'; |
| 1757 | SynchronousString[HostAdapter->MaxTargetDevices] = '\0'; |
| 1758 | } |
| 1759 | } else |
| 1760 | SynchronousMessage = (SynchronousPermitted == 0 ? "Disabled" : "Enabled"); |
| 1761 | WidePermitted = HostAdapter->WidePermitted & AllTargetsMask; |
| 1762 | if (WidePermitted == 0) |
| 1763 | WideMessage = "Disabled"; |
| 1764 | else if (WidePermitted == AllTargetsMask) |
| 1765 | WideMessage = "Enabled"; |
| 1766 | else { |
| 1767 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 1768 | WideString[TargetID] = ((WidePermitted & (1 << TargetID)) ? 'Y' : 'N'); |
| 1769 | WideString[HostAdapter->SCSI_ID] = '#'; |
| 1770 | WideString[HostAdapter->MaxTargetDevices] = '\0'; |
| 1771 | } |
| 1772 | DisconnectPermitted = HostAdapter->DisconnectPermitted & AllTargetsMask; |
| 1773 | if (DisconnectPermitted == 0) |
| 1774 | DisconnectMessage = "Disabled"; |
| 1775 | else if (DisconnectPermitted == AllTargetsMask) |
| 1776 | DisconnectMessage = "Enabled"; |
| 1777 | else { |
| 1778 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 1779 | DisconnectString[TargetID] = ((DisconnectPermitted & (1 << TargetID)) ? 'Y' : 'N'); |
| 1780 | DisconnectString[HostAdapter->SCSI_ID] = '#'; |
| 1781 | DisconnectString[HostAdapter->MaxTargetDevices] = '\0'; |
| 1782 | } |
| 1783 | TaggedQueuingPermitted = HostAdapter->TaggedQueuingPermitted & AllTargetsMask; |
| 1784 | if (TaggedQueuingPermitted == 0) |
| 1785 | TaggedQueuingMessage = "Disabled"; |
| 1786 | else if (TaggedQueuingPermitted == AllTargetsMask) |
| 1787 | TaggedQueuingMessage = "Enabled"; |
| 1788 | else { |
| 1789 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 1790 | TaggedQueuingString[TargetID] = ((TaggedQueuingPermitted & (1 << TargetID)) ? 'Y' : 'N'); |
| 1791 | TaggedQueuingString[HostAdapter->SCSI_ID] = '#'; |
| 1792 | TaggedQueuingString[HostAdapter->MaxTargetDevices] = '\0'; |
| 1793 | } |
| 1794 | BusLogic_Info(" Synchronous Negotiation: %s, Wide Negotiation: %s\n", HostAdapter, SynchronousMessage, WideMessage); |
| 1795 | BusLogic_Info(" Disconnect/Reconnect: %s, Tagged Queuing: %s\n", HostAdapter, DisconnectMessage, TaggedQueuingMessage); |
| 1796 | if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) { |
| 1797 | BusLogic_Info(" Scatter/Gather Limit: %d of %d segments, " "Mailboxes: %d\n", HostAdapter, HostAdapter->DriverScatterGatherLimit, HostAdapter->HostAdapterScatterGatherLimit, HostAdapter->MailboxCount); |
| 1798 | BusLogic_Info(" Driver Queue Depth: %d, " "Host Adapter Queue Depth: %d\n", HostAdapter, HostAdapter->DriverQueueDepth, HostAdapter->HostAdapterQueueDepth); |
| 1799 | } else |
| 1800 | BusLogic_Info(" Driver Queue Depth: %d, " "Scatter/Gather Limit: %d segments\n", HostAdapter, HostAdapter->DriverQueueDepth, HostAdapter->DriverScatterGatherLimit); |
| 1801 | BusLogic_Info(" Tagged Queue Depth: ", HostAdapter); |
| 1802 | CommonTaggedQueueDepth = true; |
| 1803 | for (TargetID = 1; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 1804 | if (HostAdapter->QueueDepth[TargetID] != HostAdapter->QueueDepth[0]) { |
| 1805 | CommonTaggedQueueDepth = false; |
| 1806 | break; |
| 1807 | } |
| 1808 | if (CommonTaggedQueueDepth) { |
| 1809 | if (HostAdapter->QueueDepth[0] > 0) |
| 1810 | BusLogic_Info("%d", HostAdapter, HostAdapter->QueueDepth[0]); |
| 1811 | else |
| 1812 | BusLogic_Info("Automatic", HostAdapter); |
| 1813 | } else |
| 1814 | BusLogic_Info("Individual", HostAdapter); |
| 1815 | BusLogic_Info(", Untagged Queue Depth: %d\n", HostAdapter, HostAdapter->UntaggedQueueDepth); |
| 1816 | if (HostAdapter->TerminationInfoValid) { |
| 1817 | if (HostAdapter->HostWideSCSI) |
| 1818 | BusLogic_Info(" SCSI Bus Termination: %s", HostAdapter, (HostAdapter->LowByteTerminated ? (HostAdapter->HighByteTerminated ? "Both Enabled" : "Low Enabled") |
| 1819 | : (HostAdapter->HighByteTerminated ? "High Enabled" : "Both Disabled"))); |
| 1820 | else |
| 1821 | BusLogic_Info(" SCSI Bus Termination: %s", HostAdapter, (HostAdapter->LowByteTerminated ? "Enabled" : "Disabled")); |
| 1822 | if (HostAdapter->HostSupportsSCAM) |
| 1823 | BusLogic_Info(", SCAM: %s", HostAdapter, (HostAdapter->SCAM_Enabled ? (HostAdapter->SCAM_Level2 ? "Enabled, Level 2" : "Enabled, Level 1") |
| 1824 | : "Disabled")); |
| 1825 | BusLogic_Info("\n", HostAdapter); |
| 1826 | } |
| 1827 | /* |
| 1828 | Indicate reporting the Host Adapter configuration completed successfully. |
| 1829 | */ |
| 1830 | return true; |
| 1831 | } |
| 1832 | |
| 1833 | |
| 1834 | /* |
| 1835 | BusLogic_AcquireResources acquires the system resources necessary to use |
| 1836 | Host Adapter. |
| 1837 | */ |
| 1838 | |
| 1839 | static boolean __init BusLogic_AcquireResources(struct BusLogic_HostAdapter *HostAdapter) |
| 1840 | { |
| 1841 | if (HostAdapter->IRQ_Channel == 0) { |
| 1842 | BusLogic_Error("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n", HostAdapter); |
| 1843 | return false; |
| 1844 | } |
| 1845 | /* |
| 1846 | Acquire shared access to the IRQ Channel. |
| 1847 | */ |
| 1848 | if (request_irq(HostAdapter->IRQ_Channel, BusLogic_InterruptHandler, SA_SHIRQ, HostAdapter->FullModelName, HostAdapter) < 0) { |
| 1849 | BusLogic_Error("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n", HostAdapter, HostAdapter->IRQ_Channel); |
| 1850 | return false; |
| 1851 | } |
| 1852 | HostAdapter->IRQ_ChannelAcquired = true; |
| 1853 | /* |
| 1854 | Acquire exclusive access to the DMA Channel. |
| 1855 | */ |
| 1856 | if (HostAdapter->DMA_Channel > 0) { |
| 1857 | if (request_dma(HostAdapter->DMA_Channel, HostAdapter->FullModelName) < 0) { |
| 1858 | BusLogic_Error("UNABLE TO ACQUIRE DMA CHANNEL %d - DETACHING\n", HostAdapter, HostAdapter->DMA_Channel); |
| 1859 | return false; |
| 1860 | } |
| 1861 | set_dma_mode(HostAdapter->DMA_Channel, DMA_MODE_CASCADE); |
| 1862 | enable_dma(HostAdapter->DMA_Channel); |
| 1863 | HostAdapter->DMA_ChannelAcquired = true; |
| 1864 | } |
| 1865 | /* |
| 1866 | Indicate the System Resource Acquisition completed successfully, |
| 1867 | */ |
| 1868 | return true; |
| 1869 | } |
| 1870 | |
| 1871 | |
| 1872 | /* |
| 1873 | BusLogic_ReleaseResources releases any system resources previously acquired |
| 1874 | by BusLogic_AcquireResources. |
| 1875 | */ |
| 1876 | |
| 1877 | static void BusLogic_ReleaseResources(struct BusLogic_HostAdapter *HostAdapter) |
| 1878 | { |
| 1879 | /* |
| 1880 | Release shared access to the IRQ Channel. |
| 1881 | */ |
| 1882 | if (HostAdapter->IRQ_ChannelAcquired) |
| 1883 | free_irq(HostAdapter->IRQ_Channel, HostAdapter); |
| 1884 | /* |
| 1885 | Release exclusive access to the DMA Channel. |
| 1886 | */ |
| 1887 | if (HostAdapter->DMA_ChannelAcquired) |
| 1888 | free_dma(HostAdapter->DMA_Channel); |
| 1889 | /* |
| 1890 | Release any allocated memory structs not released elsewhere |
| 1891 | */ |
| 1892 | if (HostAdapter->MailboxSpace) |
| 1893 | pci_free_consistent(HostAdapter->PCI_Device, HostAdapter->MailboxSize, HostAdapter->MailboxSpace, HostAdapter->MailboxSpaceHandle); |
| 1894 | HostAdapter->MailboxSpace = NULL; |
| 1895 | HostAdapter->MailboxSpaceHandle = 0; |
| 1896 | HostAdapter->MailboxSize = 0; |
| 1897 | } |
| 1898 | |
| 1899 | |
| 1900 | /* |
| 1901 | BusLogic_InitializeHostAdapter initializes Host Adapter. This is the only |
| 1902 | function called during SCSI Host Adapter detection which modifies the state |
| 1903 | of the Host Adapter from its initial power on or hard reset state. |
| 1904 | */ |
| 1905 | |
| 1906 | static boolean BusLogic_InitializeHostAdapter(struct BusLogic_HostAdapter |
| 1907 | *HostAdapter) |
| 1908 | { |
| 1909 | struct BusLogic_ExtendedMailboxRequest ExtendedMailboxRequest; |
| 1910 | enum BusLogic_RoundRobinModeRequest RoundRobinModeRequest; |
| 1911 | enum BusLogic_SetCCBFormatRequest SetCCBFormatRequest; |
| 1912 | int TargetID; |
| 1913 | /* |
| 1914 | Initialize the pointers to the first and last CCBs that are queued for |
| 1915 | completion processing. |
| 1916 | */ |
| 1917 | HostAdapter->FirstCompletedCCB = NULL; |
| 1918 | HostAdapter->LastCompletedCCB = NULL; |
| 1919 | /* |
| 1920 | Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active, |
| 1921 | Command Successful Flag, Active Commands, and Commands Since Reset |
| 1922 | for each Target Device. |
| 1923 | */ |
| 1924 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { |
| 1925 | HostAdapter->BusDeviceResetPendingCCB[TargetID] = NULL; |
| 1926 | HostAdapter->TargetFlags[TargetID].TaggedQueuingActive = false; |
| 1927 | HostAdapter->TargetFlags[TargetID].CommandSuccessfulFlag = false; |
| 1928 | HostAdapter->ActiveCommands[TargetID] = 0; |
| 1929 | HostAdapter->CommandsSinceReset[TargetID] = 0; |
| 1930 | } |
| 1931 | /* |
| 1932 | FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes. |
| 1933 | */ |
| 1934 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) |
| 1935 | goto Done; |
| 1936 | /* |
| 1937 | Initialize the Outgoing and Incoming Mailbox pointers. |
| 1938 | */ |
| 1939 | HostAdapter->MailboxSize = HostAdapter->MailboxCount * (sizeof(struct BusLogic_OutgoingMailbox) + sizeof(struct BusLogic_IncomingMailbox)); |
| 1940 | HostAdapter->MailboxSpace = pci_alloc_consistent(HostAdapter->PCI_Device, HostAdapter->MailboxSize, &HostAdapter->MailboxSpaceHandle); |
| 1941 | if (HostAdapter->MailboxSpace == NULL) |
| 1942 | return BusLogic_Failure(HostAdapter, "MAILBOX ALLOCATION"); |
| 1943 | HostAdapter->FirstOutgoingMailbox = (struct BusLogic_OutgoingMailbox *) HostAdapter->MailboxSpace; |
| 1944 | HostAdapter->LastOutgoingMailbox = HostAdapter->FirstOutgoingMailbox + HostAdapter->MailboxCount - 1; |
| 1945 | HostAdapter->NextOutgoingMailbox = HostAdapter->FirstOutgoingMailbox; |
| 1946 | HostAdapter->FirstIncomingMailbox = (struct BusLogic_IncomingMailbox *) (HostAdapter->LastOutgoingMailbox + 1); |
| 1947 | HostAdapter->LastIncomingMailbox = HostAdapter->FirstIncomingMailbox + HostAdapter->MailboxCount - 1; |
| 1948 | HostAdapter->NextIncomingMailbox = HostAdapter->FirstIncomingMailbox; |
| 1949 | |
| 1950 | /* |
| 1951 | Initialize the Outgoing and Incoming Mailbox structures. |
| 1952 | */ |
| 1953 | memset(HostAdapter->FirstOutgoingMailbox, 0, HostAdapter->MailboxCount * sizeof(struct BusLogic_OutgoingMailbox)); |
| 1954 | memset(HostAdapter->FirstIncomingMailbox, 0, HostAdapter->MailboxCount * sizeof(struct BusLogic_IncomingMailbox)); |
| 1955 | /* |
| 1956 | Initialize the Host Adapter's Pointer to the Outgoing/Incoming Mailboxes. |
| 1957 | */ |
| 1958 | ExtendedMailboxRequest.MailboxCount = HostAdapter->MailboxCount; |
| 1959 | ExtendedMailboxRequest.BaseMailboxAddress = (u32) HostAdapter->MailboxSpaceHandle; |
| 1960 | if (BusLogic_Command(HostAdapter, BusLogic_InitializeExtendedMailbox, &ExtendedMailboxRequest, sizeof(ExtendedMailboxRequest), NULL, 0) < 0) |
| 1961 | return BusLogic_Failure(HostAdapter, "MAILBOX INITIALIZATION"); |
| 1962 | /* |
| 1963 | Enable Strict Round Robin Mode if supported by the Host Adapter. In |
| 1964 | Strict Round Robin Mode, the Host Adapter only looks at the next Outgoing |
| 1965 | Mailbox for each new command, rather than scanning through all the |
| 1966 | Outgoing Mailboxes to find any that have new commands in them. Strict |
| 1967 | Round Robin Mode is significantly more efficient. |
| 1968 | */ |
| 1969 | if (HostAdapter->StrictRoundRobinModeSupport) { |
| 1970 | RoundRobinModeRequest = BusLogic_StrictRoundRobinMode; |
| 1971 | if (BusLogic_Command(HostAdapter, BusLogic_EnableStrictRoundRobinMode, &RoundRobinModeRequest, sizeof(RoundRobinModeRequest), NULL, 0) < 0) |
| 1972 | return BusLogic_Failure(HostAdapter, "ENABLE STRICT ROUND ROBIN MODE"); |
| 1973 | } |
| 1974 | /* |
| 1975 | For Host Adapters that support Extended LUN Format CCBs, issue the Set CCB |
| 1976 | Format command to allow 32 Logical Units per Target Device. |
| 1977 | */ |
| 1978 | if (HostAdapter->ExtendedLUNSupport) { |
| 1979 | SetCCBFormatRequest = BusLogic_ExtendedLUNFormatCCB; |
| 1980 | if (BusLogic_Command(HostAdapter, BusLogic_SetCCBFormat, &SetCCBFormatRequest, sizeof(SetCCBFormatRequest), NULL, 0) < 0) |
| 1981 | return BusLogic_Failure(HostAdapter, "SET CCB FORMAT"); |
| 1982 | } |
| 1983 | /* |
| 1984 | Announce Successful Initialization. |
| 1985 | */ |
| 1986 | Done: |
| 1987 | if (!HostAdapter->HostAdapterInitialized) { |
| 1988 | BusLogic_Info("*** %s Initialized Successfully ***\n", HostAdapter, HostAdapter->FullModelName); |
| 1989 | BusLogic_Info("\n", HostAdapter); |
| 1990 | } else |
| 1991 | BusLogic_Warning("*** %s Initialized Successfully ***\n", HostAdapter, HostAdapter->FullModelName); |
| 1992 | HostAdapter->HostAdapterInitialized = true; |
| 1993 | /* |
| 1994 | Indicate the Host Adapter Initialization completed successfully. |
| 1995 | */ |
| 1996 | return true; |
| 1997 | } |
| 1998 | |
| 1999 | |
| 2000 | /* |
| 2001 | BusLogic_TargetDeviceInquiry inquires about the Target Devices accessible |
| 2002 | through Host Adapter. |
| 2003 | */ |
| 2004 | |
| 2005 | static boolean __init BusLogic_TargetDeviceInquiry(struct BusLogic_HostAdapter |
| 2006 | *HostAdapter) |
| 2007 | { |
| 2008 | u16 InstalledDevices; |
| 2009 | u8 InstalledDevicesID0to7[8]; |
| 2010 | struct BusLogic_SetupInformation SetupInformation; |
| 2011 | u8 SynchronousPeriod[BusLogic_MaxTargetDevices]; |
| 2012 | unsigned char RequestedReplyLength; |
| 2013 | int TargetID; |
| 2014 | /* |
| 2015 | Wait a few seconds between the Host Adapter Hard Reset which initiates |
| 2016 | a SCSI Bus Reset and issuing any SCSI Commands. Some SCSI devices get |
| 2017 | confused if they receive SCSI Commands too soon after a SCSI Bus Reset. |
| 2018 | */ |
| 2019 | BusLogic_Delay(HostAdapter->BusSettleTime); |
| 2020 | /* |
| 2021 | FlashPoint Host Adapters do not provide for Target Device Inquiry. |
| 2022 | */ |
| 2023 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) |
| 2024 | return true; |
| 2025 | /* |
| 2026 | Inhibit the Target Device Inquiry if requested. |
| 2027 | */ |
| 2028 | if (HostAdapter->DriverOptions != NULL && HostAdapter->DriverOptions->LocalOptions.InhibitTargetInquiry) |
| 2029 | return true; |
| 2030 | /* |
| 2031 | Issue the Inquire Target Devices command for host adapters with firmware |
| 2032 | version 4.25 or later, or the Inquire Installed Devices ID 0 to 7 command |
| 2033 | for older host adapters. This is necessary to force Synchronous Transfer |
| 2034 | Negotiation so that the Inquire Setup Information and Inquire Synchronous |
| 2035 | Period commands will return valid data. The Inquire Target Devices command |
| 2036 | is preferable to Inquire Installed Devices ID 0 to 7 since it only probes |
| 2037 | Logical Unit 0 of each Target Device. |
| 2038 | */ |
| 2039 | if (strcmp(HostAdapter->FirmwareVersion, "4.25") >= 0) { |
| 2040 | |
| 2041 | /* |
| 2042 | * Issue a Inquire Target Devices command. Inquire Target Devices only |
| 2043 | * tests Logical Unit 0 of each Target Device unlike the Inquire Installed |
| 2044 | * Devices commands which test Logical Units 0 - 7. Two bytes are |
| 2045 | * returned, where byte 0 bit 0 set indicates that Target Device 0 exists, |
| 2046 | * and so on. |
| 2047 | */ |
| 2048 | |
| 2049 | if (BusLogic_Command(HostAdapter, BusLogic_InquireTargetDevices, NULL, 0, &InstalledDevices, sizeof(InstalledDevices)) |
| 2050 | != sizeof(InstalledDevices)) |
| 2051 | return BusLogic_Failure(HostAdapter, "INQUIRE TARGET DEVICES"); |
| 2052 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 2053 | HostAdapter->TargetFlags[TargetID].TargetExists = (InstalledDevices & (1 << TargetID) ? true : false); |
| 2054 | } else { |
| 2055 | |
| 2056 | /* |
| 2057 | * Issue an Inquire Installed Devices command. For each Target Device, |
| 2058 | * a byte is returned where bit 0 set indicates that Logical Unit 0 |
| 2059 | * exists, bit 1 set indicates that Logical Unit 1 exists, and so on. |
| 2060 | */ |
| 2061 | |
| 2062 | if (BusLogic_Command(HostAdapter, BusLogic_InquireInstalledDevicesID0to7, NULL, 0, &InstalledDevicesID0to7, sizeof(InstalledDevicesID0to7)) |
| 2063 | != sizeof(InstalledDevicesID0to7)) |
| 2064 | return BusLogic_Failure(HostAdapter, "INQUIRE INSTALLED DEVICES ID 0 TO 7"); |
| 2065 | for (TargetID = 0; TargetID < 8; TargetID++) |
| 2066 | HostAdapter->TargetFlags[TargetID].TargetExists = (InstalledDevicesID0to7[TargetID] != 0 ? true : false); |
| 2067 | } |
| 2068 | /* |
| 2069 | Issue the Inquire Setup Information command. |
| 2070 | */ |
| 2071 | RequestedReplyLength = sizeof(SetupInformation); |
| 2072 | if (BusLogic_Command(HostAdapter, BusLogic_InquireSetupInformation, &RequestedReplyLength, sizeof(RequestedReplyLength), &SetupInformation, sizeof(SetupInformation)) |
| 2073 | != sizeof(SetupInformation)) |
| 2074 | return BusLogic_Failure(HostAdapter, "INQUIRE SETUP INFORMATION"); |
| 2075 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 2076 | HostAdapter->SynchronousOffset[TargetID] = (TargetID < 8 ? SetupInformation.SynchronousValuesID0to7[TargetID].Offset : SetupInformation.SynchronousValuesID8to15[TargetID - 8].Offset); |
| 2077 | if (strcmp(HostAdapter->FirmwareVersion, "5.06L") >= 0) |
| 2078 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 2079 | HostAdapter->TargetFlags[TargetID].WideTransfersActive = (TargetID < 8 ? (SetupInformation.WideTransfersActiveID0to7 & (1 << TargetID) |
| 2080 | ? true : false) |
| 2081 | : (SetupInformation.WideTransfersActiveID8to15 & (1 << (TargetID - 8)) |
| 2082 | ? true : false)); |
| 2083 | /* |
| 2084 | Issue the Inquire Synchronous Period command. |
| 2085 | */ |
| 2086 | if (HostAdapter->FirmwareVersion[0] >= '3') { |
| 2087 | |
| 2088 | /* Issue a Inquire Synchronous Period command. For each Target Device, |
| 2089 | * a byte is returned which represents the Synchronous Transfer Period |
| 2090 | * in units of 10 nanoseconds. |
| 2091 | */ |
| 2092 | |
| 2093 | RequestedReplyLength = sizeof(SynchronousPeriod); |
| 2094 | if (BusLogic_Command(HostAdapter, BusLogic_InquireSynchronousPeriod, &RequestedReplyLength, sizeof(RequestedReplyLength), &SynchronousPeriod, sizeof(SynchronousPeriod)) |
| 2095 | != sizeof(SynchronousPeriod)) |
| 2096 | return BusLogic_Failure(HostAdapter, "INQUIRE SYNCHRONOUS PERIOD"); |
| 2097 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 2098 | HostAdapter->SynchronousPeriod[TargetID] = SynchronousPeriod[TargetID]; |
| 2099 | } else |
| 2100 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 2101 | if (SetupInformation.SynchronousValuesID0to7[TargetID].Offset > 0) |
| 2102 | HostAdapter->SynchronousPeriod[TargetID] = 20 + 5 * SetupInformation.SynchronousValuesID0to7[TargetID] |
| 2103 | .TransferPeriod; |
| 2104 | /* |
| 2105 | Indicate the Target Device Inquiry completed successfully. |
| 2106 | */ |
| 2107 | return true; |
| 2108 | } |
| 2109 | |
| 2110 | /* |
| 2111 | BusLogic_InitializeHostStructure initializes the fields in the SCSI Host |
| 2112 | structure. The base, io_port, n_io_ports, irq, and dma_channel fields in the |
| 2113 | SCSI Host structure are intentionally left uninitialized, as this driver |
| 2114 | handles acquisition and release of these resources explicitly, as well as |
| 2115 | ensuring exclusive access to the Host Adapter hardware and data structures |
| 2116 | through explicit acquisition and release of the Host Adapter's Lock. |
| 2117 | */ |
| 2118 | |
| 2119 | static void __init BusLogic_InitializeHostStructure(struct BusLogic_HostAdapter |
| 2120 | *HostAdapter, struct Scsi_Host *Host) |
| 2121 | { |
| 2122 | Host->max_id = HostAdapter->MaxTargetDevices; |
| 2123 | Host->max_lun = HostAdapter->MaxLogicalUnits; |
| 2124 | Host->max_channel = 0; |
| 2125 | Host->unique_id = HostAdapter->IO_Address; |
| 2126 | Host->this_id = HostAdapter->SCSI_ID; |
| 2127 | Host->can_queue = HostAdapter->DriverQueueDepth; |
| 2128 | Host->sg_tablesize = HostAdapter->DriverScatterGatherLimit; |
| 2129 | Host->unchecked_isa_dma = HostAdapter->BounceBuffersRequired; |
| 2130 | Host->cmd_per_lun = HostAdapter->UntaggedQueueDepth; |
| 2131 | } |
| 2132 | |
| 2133 | /* |
| 2134 | BusLogic_SlaveConfigure will actually set the queue depth on individual |
| 2135 | scsi devices as they are permanently added to the device chain. We |
| 2136 | shamelessly rip off the SelectQueueDepths code to make this work mostly |
| 2137 | like it used to. Since we don't get called once at the end of the scan |
| 2138 | but instead get called for each device, we have to do things a bit |
| 2139 | differently. |
| 2140 | */ |
| 2141 | static int BusLogic_SlaveConfigure(struct scsi_device *Device) |
| 2142 | { |
| 2143 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Device->host->hostdata; |
| 2144 | int TargetID = Device->id; |
| 2145 | int QueueDepth = HostAdapter->QueueDepth[TargetID]; |
| 2146 | |
| 2147 | if (HostAdapter->TargetFlags[TargetID].TaggedQueuingSupported && (HostAdapter->TaggedQueuingPermitted & (1 << TargetID))) { |
| 2148 | if (QueueDepth == 0) |
| 2149 | QueueDepth = BusLogic_MaxAutomaticTaggedQueueDepth; |
| 2150 | HostAdapter->QueueDepth[TargetID] = QueueDepth; |
| 2151 | scsi_adjust_queue_depth(Device, MSG_SIMPLE_TAG, QueueDepth); |
| 2152 | } else { |
| 2153 | HostAdapter->TaggedQueuingPermitted &= ~(1 << TargetID); |
| 2154 | QueueDepth = HostAdapter->UntaggedQueueDepth; |
| 2155 | HostAdapter->QueueDepth[TargetID] = QueueDepth; |
| 2156 | scsi_adjust_queue_depth(Device, 0, QueueDepth); |
| 2157 | } |
| 2158 | QueueDepth = 0; |
| 2159 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) |
| 2160 | if (HostAdapter->TargetFlags[TargetID].TargetExists) { |
| 2161 | QueueDepth += HostAdapter->QueueDepth[TargetID]; |
| 2162 | } |
| 2163 | if (QueueDepth > HostAdapter->AllocatedCCBs) |
| 2164 | BusLogic_CreateAdditionalCCBs(HostAdapter, QueueDepth - HostAdapter->AllocatedCCBs, false); |
| 2165 | return 0; |
| 2166 | } |
| 2167 | |
| 2168 | /* |
| 2169 | BusLogic_DetectHostAdapter probes for BusLogic Host Adapters at the standard |
| 2170 | I/O Addresses where they may be located, initializing, registering, and |
| 2171 | reporting the configuration of each BusLogic Host Adapter it finds. It |
| 2172 | returns the number of BusLogic Host Adapters successfully initialized and |
| 2173 | registered. |
| 2174 | */ |
| 2175 | |
| 2176 | static int __init BusLogic_init(void) |
| 2177 | { |
| 2178 | int BusLogicHostAdapterCount = 0, DriverOptionsIndex = 0, ProbeIndex; |
| 2179 | struct BusLogic_HostAdapter *PrototypeHostAdapter; |
| 2180 | |
| 2181 | #ifdef MODULE |
| 2182 | if (BusLogic) |
| 2183 | BusLogic_Setup(BusLogic); |
| 2184 | #endif |
| 2185 | |
| 2186 | if (BusLogic_ProbeOptions.NoProbe) |
| 2187 | return -ENODEV; |
| 2188 | BusLogic_ProbeInfoList = (struct BusLogic_ProbeInfo *) |
| 2189 | kmalloc(BusLogic_MaxHostAdapters * sizeof(struct BusLogic_ProbeInfo), GFP_ATOMIC); |
| 2190 | if (BusLogic_ProbeInfoList == NULL) { |
| 2191 | BusLogic_Error("BusLogic: Unable to allocate Probe Info List\n", NULL); |
| 2192 | return -ENOMEM; |
| 2193 | } |
| 2194 | memset(BusLogic_ProbeInfoList, 0, BusLogic_MaxHostAdapters * sizeof(struct BusLogic_ProbeInfo)); |
| 2195 | PrototypeHostAdapter = (struct BusLogic_HostAdapter *) |
| 2196 | kmalloc(sizeof(struct BusLogic_HostAdapter), GFP_ATOMIC); |
| 2197 | if (PrototypeHostAdapter == NULL) { |
| 2198 | kfree(BusLogic_ProbeInfoList); |
| 2199 | BusLogic_Error("BusLogic: Unable to allocate Prototype " "Host Adapter\n", NULL); |
| 2200 | return -ENOMEM; |
| 2201 | } |
| 2202 | memset(PrototypeHostAdapter, 0, sizeof(struct BusLogic_HostAdapter)); |
| 2203 | #ifdef MODULE |
| 2204 | if (BusLogic != NULL) |
| 2205 | BusLogic_Setup(BusLogic); |
| 2206 | #endif |
| 2207 | BusLogic_InitializeProbeInfoList(PrototypeHostAdapter); |
| 2208 | for (ProbeIndex = 0; ProbeIndex < BusLogic_ProbeInfoCount; ProbeIndex++) { |
| 2209 | struct BusLogic_ProbeInfo *ProbeInfo = &BusLogic_ProbeInfoList[ProbeIndex]; |
| 2210 | struct BusLogic_HostAdapter *HostAdapter = PrototypeHostAdapter; |
| 2211 | struct Scsi_Host *Host; |
| 2212 | if (ProbeInfo->IO_Address == 0) |
| 2213 | continue; |
| 2214 | memset(HostAdapter, 0, sizeof(struct BusLogic_HostAdapter)); |
| 2215 | HostAdapter->HostAdapterType = ProbeInfo->HostAdapterType; |
| 2216 | HostAdapter->HostAdapterBusType = ProbeInfo->HostAdapterBusType; |
| 2217 | HostAdapter->IO_Address = ProbeInfo->IO_Address; |
| 2218 | HostAdapter->PCI_Address = ProbeInfo->PCI_Address; |
| 2219 | HostAdapter->Bus = ProbeInfo->Bus; |
| 2220 | HostAdapter->Device = ProbeInfo->Device; |
Petr Vandrovec | 745caf7 | 2006-01-11 11:31:07 -0800 | [diff] [blame] | 2221 | HostAdapter->PCI_Device = ProbeInfo->PCI_Device; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2222 | HostAdapter->IRQ_Channel = ProbeInfo->IRQ_Channel; |
| 2223 | HostAdapter->AddressCount = BusLogic_HostAdapterAddressCount[HostAdapter->HostAdapterType]; |
| 2224 | /* |
| 2225 | Probe the Host Adapter. If unsuccessful, abort further initialization. |
| 2226 | */ |
| 2227 | if (!BusLogic_ProbeHostAdapter(HostAdapter)) |
| 2228 | continue; |
| 2229 | /* |
| 2230 | Hard Reset the Host Adapter. If unsuccessful, abort further |
| 2231 | initialization. |
| 2232 | */ |
| 2233 | if (!BusLogic_HardwareResetHostAdapter(HostAdapter, true)) |
| 2234 | continue; |
| 2235 | /* |
| 2236 | Check the Host Adapter. If unsuccessful, abort further initialization. |
| 2237 | */ |
| 2238 | if (!BusLogic_CheckHostAdapter(HostAdapter)) |
| 2239 | continue; |
| 2240 | /* |
| 2241 | Initialize the Driver Options field if provided. |
| 2242 | */ |
| 2243 | if (DriverOptionsIndex < BusLogic_DriverOptionsCount) |
| 2244 | HostAdapter->DriverOptions = &BusLogic_DriverOptions[DriverOptionsIndex++]; |
| 2245 | /* |
| 2246 | Announce the Driver Version and Date, Author's Name, Copyright Notice, |
| 2247 | and Electronic Mail Address. |
| 2248 | */ |
| 2249 | BusLogic_AnnounceDriver(HostAdapter); |
| 2250 | /* |
| 2251 | Register usage of the I/O Address range. From this point onward, any |
| 2252 | failure will be assumed to be due to a problem with the Host Adapter, |
| 2253 | rather than due to having mistakenly identified this port as belonging |
| 2254 | to a BusLogic Host Adapter. The I/O Address range will not be |
| 2255 | released, thereby preventing it from being incorrectly identified as |
| 2256 | any other type of Host Adapter. |
| 2257 | */ |
| 2258 | if (!request_region(HostAdapter->IO_Address, HostAdapter->AddressCount, "BusLogic")) |
| 2259 | continue; |
| 2260 | /* |
| 2261 | Register the SCSI Host structure. |
| 2262 | */ |
| 2263 | |
| 2264 | Host = scsi_host_alloc(&Bus_Logic_template, sizeof(struct BusLogic_HostAdapter)); |
| 2265 | if (Host == NULL) { |
| 2266 | release_region(HostAdapter->IO_Address, HostAdapter->AddressCount); |
| 2267 | continue; |
| 2268 | } |
| 2269 | HostAdapter = (struct BusLogic_HostAdapter *) Host->hostdata; |
| 2270 | memcpy(HostAdapter, PrototypeHostAdapter, sizeof(struct BusLogic_HostAdapter)); |
| 2271 | HostAdapter->SCSI_Host = Host; |
| 2272 | HostAdapter->HostNumber = Host->host_no; |
| 2273 | /* |
| 2274 | Add Host Adapter to the end of the list of registered BusLogic |
| 2275 | Host Adapters. |
| 2276 | */ |
| 2277 | list_add_tail(&HostAdapter->host_list, &BusLogic_host_list); |
| 2278 | |
| 2279 | /* |
| 2280 | Read the Host Adapter Configuration, Configure the Host Adapter, |
| 2281 | Acquire the System Resources necessary to use the Host Adapter, then |
| 2282 | Create the Initial CCBs, Initialize the Host Adapter, and finally |
| 2283 | perform Target Device Inquiry. |
| 2284 | */ |
| 2285 | if (BusLogic_ReadHostAdapterConfiguration(HostAdapter) && |
| 2286 | BusLogic_ReportHostAdapterConfiguration(HostAdapter) && BusLogic_AcquireResources(HostAdapter) && BusLogic_CreateInitialCCBs(HostAdapter) && BusLogic_InitializeHostAdapter(HostAdapter) && BusLogic_TargetDeviceInquiry(HostAdapter)) { |
| 2287 | /* |
| 2288 | Initialization has been completed successfully. Release and |
| 2289 | re-register usage of the I/O Address range so that the Model |
| 2290 | Name of the Host Adapter will appear, and initialize the SCSI |
| 2291 | Host structure. |
| 2292 | */ |
| 2293 | release_region(HostAdapter->IO_Address, HostAdapter->AddressCount); |
| 2294 | if (!request_region(HostAdapter->IO_Address, HostAdapter->AddressCount, HostAdapter->FullModelName)) { |
| 2295 | printk(KERN_WARNING "BusLogic: Release and re-register of " "port 0x%04lx failed \n", (unsigned long) HostAdapter->IO_Address); |
| 2296 | BusLogic_DestroyCCBs(HostAdapter); |
| 2297 | BusLogic_ReleaseResources(HostAdapter); |
| 2298 | list_del(&HostAdapter->host_list); |
| 2299 | scsi_host_put(Host); |
| 2300 | } else { |
| 2301 | BusLogic_InitializeHostStructure(HostAdapter, Host); |
Petr Vandrovec | 745caf7 | 2006-01-11 11:31:07 -0800 | [diff] [blame] | 2302 | scsi_add_host(Host, HostAdapter->PCI_Device ? &HostAdapter->PCI_Device->dev : NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | scsi_scan_host(Host); |
| 2304 | BusLogicHostAdapterCount++; |
| 2305 | } |
| 2306 | } else { |
| 2307 | /* |
| 2308 | An error occurred during Host Adapter Configuration Querying, Host |
| 2309 | Adapter Configuration, Resource Acquisition, CCB Creation, Host |
| 2310 | Adapter Initialization, or Target Device Inquiry, so remove Host |
| 2311 | Adapter from the list of registered BusLogic Host Adapters, destroy |
| 2312 | the CCBs, Release the System Resources, and Unregister the SCSI |
| 2313 | Host. |
| 2314 | */ |
| 2315 | BusLogic_DestroyCCBs(HostAdapter); |
| 2316 | BusLogic_ReleaseResources(HostAdapter); |
| 2317 | list_del(&HostAdapter->host_list); |
| 2318 | scsi_host_put(Host); |
| 2319 | } |
| 2320 | } |
| 2321 | kfree(PrototypeHostAdapter); |
| 2322 | kfree(BusLogic_ProbeInfoList); |
| 2323 | BusLogic_ProbeInfoList = NULL; |
| 2324 | return 0; |
| 2325 | } |
| 2326 | |
| 2327 | |
| 2328 | /* |
| 2329 | BusLogic_ReleaseHostAdapter releases all resources previously acquired to |
| 2330 | support a specific Host Adapter, including the I/O Address range, and |
| 2331 | unregisters the BusLogic Host Adapter. |
| 2332 | */ |
| 2333 | |
| 2334 | static int __exit BusLogic_ReleaseHostAdapter(struct BusLogic_HostAdapter *HostAdapter) |
| 2335 | { |
| 2336 | struct Scsi_Host *Host = HostAdapter->SCSI_Host; |
| 2337 | |
| 2338 | scsi_remove_host(Host); |
| 2339 | |
| 2340 | /* |
| 2341 | FlashPoint Host Adapters must first be released by the FlashPoint |
| 2342 | SCCB Manager. |
| 2343 | */ |
| 2344 | if (BusLogic_FlashPointHostAdapterP(HostAdapter)) |
| 2345 | FlashPoint_ReleaseHostAdapter(HostAdapter->CardHandle); |
| 2346 | /* |
| 2347 | Destroy the CCBs and release any system resources acquired to |
| 2348 | support Host Adapter. |
| 2349 | */ |
| 2350 | BusLogic_DestroyCCBs(HostAdapter); |
| 2351 | BusLogic_ReleaseResources(HostAdapter); |
| 2352 | /* |
| 2353 | Release usage of the I/O Address range. |
| 2354 | */ |
| 2355 | release_region(HostAdapter->IO_Address, HostAdapter->AddressCount); |
| 2356 | /* |
| 2357 | Remove Host Adapter from the list of registered BusLogic Host Adapters. |
| 2358 | */ |
| 2359 | list_del(&HostAdapter->host_list); |
| 2360 | |
| 2361 | scsi_host_put(Host); |
| 2362 | return 0; |
| 2363 | } |
| 2364 | |
| 2365 | |
| 2366 | /* |
| 2367 | BusLogic_QueueCompletedCCB queues CCB for completion processing. |
| 2368 | */ |
| 2369 | |
| 2370 | static void BusLogic_QueueCompletedCCB(struct BusLogic_CCB *CCB) |
| 2371 | { |
| 2372 | struct BusLogic_HostAdapter *HostAdapter = CCB->HostAdapter; |
| 2373 | CCB->Status = BusLogic_CCB_Completed; |
| 2374 | CCB->Next = NULL; |
| 2375 | if (HostAdapter->FirstCompletedCCB == NULL) { |
| 2376 | HostAdapter->FirstCompletedCCB = CCB; |
| 2377 | HostAdapter->LastCompletedCCB = CCB; |
| 2378 | } else { |
| 2379 | HostAdapter->LastCompletedCCB->Next = CCB; |
| 2380 | HostAdapter->LastCompletedCCB = CCB; |
| 2381 | } |
| 2382 | HostAdapter->ActiveCommands[CCB->TargetID]--; |
| 2383 | } |
| 2384 | |
| 2385 | |
| 2386 | /* |
| 2387 | BusLogic_ComputeResultCode computes a SCSI Subsystem Result Code from |
| 2388 | the Host Adapter Status and Target Device Status. |
| 2389 | */ |
| 2390 | |
| 2391 | static int BusLogic_ComputeResultCode(struct BusLogic_HostAdapter *HostAdapter, enum BusLogic_HostAdapterStatus HostAdapterStatus, enum BusLogic_TargetDeviceStatus TargetDeviceStatus) |
| 2392 | { |
| 2393 | int HostStatus; |
| 2394 | switch (HostAdapterStatus) { |
| 2395 | case BusLogic_CommandCompletedNormally: |
| 2396 | case BusLogic_LinkedCommandCompleted: |
| 2397 | case BusLogic_LinkedCommandCompletedWithFlag: |
| 2398 | HostStatus = DID_OK; |
| 2399 | break; |
| 2400 | case BusLogic_SCSISelectionTimeout: |
| 2401 | HostStatus = DID_TIME_OUT; |
| 2402 | break; |
| 2403 | case BusLogic_InvalidOutgoingMailboxActionCode: |
| 2404 | case BusLogic_InvalidCommandOperationCode: |
| 2405 | case BusLogic_InvalidCommandParameter: |
| 2406 | BusLogic_Warning("BusLogic Driver Protocol Error 0x%02X\n", HostAdapter, HostAdapterStatus); |
| 2407 | case BusLogic_DataUnderRun: |
| 2408 | case BusLogic_DataOverRun: |
| 2409 | case BusLogic_UnexpectedBusFree: |
| 2410 | case BusLogic_LinkedCCBhasInvalidLUN: |
| 2411 | case BusLogic_AutoRequestSenseFailed: |
| 2412 | case BusLogic_TaggedQueuingMessageRejected: |
| 2413 | case BusLogic_UnsupportedMessageReceived: |
| 2414 | case BusLogic_HostAdapterHardwareFailed: |
| 2415 | case BusLogic_TargetDeviceReconnectedImproperly: |
| 2416 | case BusLogic_AbortQueueGenerated: |
| 2417 | case BusLogic_HostAdapterSoftwareError: |
| 2418 | case BusLogic_HostAdapterHardwareTimeoutError: |
| 2419 | case BusLogic_SCSIParityErrorDetected: |
| 2420 | HostStatus = DID_ERROR; |
| 2421 | break; |
| 2422 | case BusLogic_InvalidBusPhaseRequested: |
| 2423 | case BusLogic_TargetFailedResponseToATN: |
| 2424 | case BusLogic_HostAdapterAssertedRST: |
| 2425 | case BusLogic_OtherDeviceAssertedRST: |
| 2426 | case BusLogic_HostAdapterAssertedBusDeviceReset: |
| 2427 | HostStatus = DID_RESET; |
| 2428 | break; |
| 2429 | default: |
| 2430 | BusLogic_Warning("Unknown Host Adapter Status 0x%02X\n", HostAdapter, HostAdapterStatus); |
| 2431 | HostStatus = DID_ERROR; |
| 2432 | break; |
| 2433 | } |
| 2434 | return (HostStatus << 16) | TargetDeviceStatus; |
| 2435 | } |
| 2436 | |
| 2437 | |
| 2438 | /* |
| 2439 | BusLogic_ScanIncomingMailboxes scans the Incoming Mailboxes saving any |
| 2440 | Incoming Mailbox entries for completion processing. |
| 2441 | */ |
| 2442 | |
| 2443 | static void BusLogic_ScanIncomingMailboxes(struct BusLogic_HostAdapter *HostAdapter) |
| 2444 | { |
| 2445 | /* |
| 2446 | Scan through the Incoming Mailboxes in Strict Round Robin fashion, saving |
| 2447 | any completed CCBs for further processing. It is essential that for each |
| 2448 | CCB and SCSI Command issued, command completion processing is performed |
| 2449 | exactly once. Therefore, only Incoming Mailboxes with completion code |
| 2450 | Command Completed Without Error, Command Completed With Error, or Command |
| 2451 | Aborted At Host Request are saved for completion processing. When an |
| 2452 | Incoming Mailbox has a completion code of Aborted Command Not Found, the |
| 2453 | CCB had already completed or been aborted before the current Abort request |
| 2454 | was processed, and so completion processing has already occurred and no |
| 2455 | further action should be taken. |
| 2456 | */ |
| 2457 | struct BusLogic_IncomingMailbox *NextIncomingMailbox = HostAdapter->NextIncomingMailbox; |
| 2458 | enum BusLogic_CompletionCode CompletionCode; |
| 2459 | while ((CompletionCode = NextIncomingMailbox->CompletionCode) != BusLogic_IncomingMailboxFree) { |
| 2460 | /* |
| 2461 | We are only allowed to do this because we limit our architectures we |
| 2462 | run on to machines where bus_to_virt() actually works. There *needs* |
| 2463 | to be a dma_addr_to_virt() in the new PCI DMA mapping interface to |
| 2464 | replace bus_to_virt() or else this code is going to become very |
| 2465 | innefficient. |
| 2466 | */ |
| 2467 | struct BusLogic_CCB *CCB = (struct BusLogic_CCB *) Bus_to_Virtual(NextIncomingMailbox->CCB); |
| 2468 | if (CompletionCode != BusLogic_AbortedCommandNotFound) { |
| 2469 | if (CCB->Status == BusLogic_CCB_Active || CCB->Status == BusLogic_CCB_Reset) { |
| 2470 | /* |
| 2471 | Save the Completion Code for this CCB and queue the CCB |
| 2472 | for completion processing. |
| 2473 | */ |
| 2474 | CCB->CompletionCode = CompletionCode; |
| 2475 | BusLogic_QueueCompletedCCB(CCB); |
| 2476 | } else { |
| 2477 | /* |
| 2478 | If a CCB ever appears in an Incoming Mailbox and is not marked |
| 2479 | as status Active or Reset, then there is most likely a bug in |
| 2480 | the Host Adapter firmware. |
| 2481 | */ |
| 2482 | BusLogic_Warning("Illegal CCB #%ld status %d in " "Incoming Mailbox\n", HostAdapter, CCB->SerialNumber, CCB->Status); |
| 2483 | } |
| 2484 | } |
| 2485 | NextIncomingMailbox->CompletionCode = BusLogic_IncomingMailboxFree; |
| 2486 | if (++NextIncomingMailbox > HostAdapter->LastIncomingMailbox) |
| 2487 | NextIncomingMailbox = HostAdapter->FirstIncomingMailbox; |
| 2488 | } |
| 2489 | HostAdapter->NextIncomingMailbox = NextIncomingMailbox; |
| 2490 | } |
| 2491 | |
| 2492 | |
| 2493 | /* |
| 2494 | BusLogic_ProcessCompletedCCBs iterates over the completed CCBs for Host |
| 2495 | Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and |
| 2496 | calling the SCSI Subsystem Completion Routines. The Host Adapter's Lock |
| 2497 | should already have been acquired by the caller. |
| 2498 | */ |
| 2499 | |
| 2500 | static void BusLogic_ProcessCompletedCCBs(struct BusLogic_HostAdapter *HostAdapter) |
| 2501 | { |
| 2502 | if (HostAdapter->ProcessCompletedCCBsActive) |
| 2503 | return; |
| 2504 | HostAdapter->ProcessCompletedCCBsActive = true; |
| 2505 | while (HostAdapter->FirstCompletedCCB != NULL) { |
| 2506 | struct BusLogic_CCB *CCB = HostAdapter->FirstCompletedCCB; |
| 2507 | struct scsi_cmnd *Command = CCB->Command; |
| 2508 | HostAdapter->FirstCompletedCCB = CCB->Next; |
| 2509 | if (HostAdapter->FirstCompletedCCB == NULL) |
| 2510 | HostAdapter->LastCompletedCCB = NULL; |
| 2511 | /* |
| 2512 | Process the Completed CCB. |
| 2513 | */ |
| 2514 | if (CCB->Opcode == BusLogic_BusDeviceReset) { |
| 2515 | int TargetID = CCB->TargetID; |
| 2516 | BusLogic_Warning("Bus Device Reset CCB #%ld to Target " "%d Completed\n", HostAdapter, CCB->SerialNumber, TargetID); |
| 2517 | BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].BusDeviceResetsCompleted); |
| 2518 | HostAdapter->TargetFlags[TargetID].TaggedQueuingActive = false; |
| 2519 | HostAdapter->CommandsSinceReset[TargetID] = 0; |
| 2520 | HostAdapter->LastResetCompleted[TargetID] = jiffies; |
| 2521 | /* |
| 2522 | Place CCB back on the Host Adapter's free list. |
| 2523 | */ |
| 2524 | BusLogic_DeallocateCCB(CCB); |
| 2525 | #if 0 /* this needs to be redone different for new EH */ |
| 2526 | /* |
| 2527 | Bus Device Reset CCBs have the Command field non-NULL only when a |
| 2528 | Bus Device Reset was requested for a Command that did not have a |
| 2529 | currently active CCB in the Host Adapter (i.e., a Synchronous |
| 2530 | Bus Device Reset), and hence would not have its Completion Routine |
| 2531 | called otherwise. |
| 2532 | */ |
| 2533 | while (Command != NULL) { |
| 2534 | struct scsi_cmnd *NextCommand = Command->reset_chain; |
| 2535 | Command->reset_chain = NULL; |
| 2536 | Command->result = DID_RESET << 16; |
| 2537 | Command->scsi_done(Command); |
| 2538 | Command = NextCommand; |
| 2539 | } |
| 2540 | #endif |
| 2541 | /* |
| 2542 | Iterate over the CCBs for this Host Adapter performing completion |
| 2543 | processing for any CCBs marked as Reset for this Target. |
| 2544 | */ |
| 2545 | for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll) |
| 2546 | if (CCB->Status == BusLogic_CCB_Reset && CCB->TargetID == TargetID) { |
| 2547 | Command = CCB->Command; |
| 2548 | BusLogic_DeallocateCCB(CCB); |
| 2549 | HostAdapter->ActiveCommands[TargetID]--; |
| 2550 | Command->result = DID_RESET << 16; |
| 2551 | Command->scsi_done(Command); |
| 2552 | } |
| 2553 | HostAdapter->BusDeviceResetPendingCCB[TargetID] = NULL; |
| 2554 | } else { |
| 2555 | /* |
| 2556 | Translate the Completion Code, Host Adapter Status, and Target |
| 2557 | Device Status into a SCSI Subsystem Result Code. |
| 2558 | */ |
| 2559 | switch (CCB->CompletionCode) { |
| 2560 | case BusLogic_IncomingMailboxFree: |
| 2561 | case BusLogic_AbortedCommandNotFound: |
| 2562 | case BusLogic_InvalidCCB: |
| 2563 | BusLogic_Warning("CCB #%ld to Target %d Impossible State\n", HostAdapter, CCB->SerialNumber, CCB->TargetID); |
| 2564 | break; |
| 2565 | case BusLogic_CommandCompletedWithoutError: |
| 2566 | HostAdapter->TargetStatistics[CCB->TargetID] |
| 2567 | .CommandsCompleted++; |
| 2568 | HostAdapter->TargetFlags[CCB->TargetID] |
| 2569 | .CommandSuccessfulFlag = true; |
| 2570 | Command->result = DID_OK << 16; |
| 2571 | break; |
| 2572 | case BusLogic_CommandAbortedAtHostRequest: |
| 2573 | BusLogic_Warning("CCB #%ld to Target %d Aborted\n", HostAdapter, CCB->SerialNumber, CCB->TargetID); |
| 2574 | BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[CCB->TargetID] |
| 2575 | .CommandAbortsCompleted); |
| 2576 | Command->result = DID_ABORT << 16; |
| 2577 | break; |
| 2578 | case BusLogic_CommandCompletedWithError: |
| 2579 | Command->result = BusLogic_ComputeResultCode(HostAdapter, CCB->HostAdapterStatus, CCB->TargetDeviceStatus); |
| 2580 | if (CCB->HostAdapterStatus != BusLogic_SCSISelectionTimeout) { |
| 2581 | HostAdapter->TargetStatistics[CCB->TargetID] |
| 2582 | .CommandsCompleted++; |
| 2583 | if (BusLogic_GlobalOptions.TraceErrors) { |
| 2584 | int i; |
| 2585 | BusLogic_Notice("CCB #%ld Target %d: Result %X Host " |
| 2586 | "Adapter Status %02X " "Target Status %02X\n", HostAdapter, CCB->SerialNumber, CCB->TargetID, Command->result, CCB->HostAdapterStatus, CCB->TargetDeviceStatus); |
| 2587 | BusLogic_Notice("CDB ", HostAdapter); |
| 2588 | for (i = 0; i < CCB->CDB_Length; i++) |
| 2589 | BusLogic_Notice(" %02X", HostAdapter, CCB->CDB[i]); |
| 2590 | BusLogic_Notice("\n", HostAdapter); |
| 2591 | BusLogic_Notice("Sense ", HostAdapter); |
| 2592 | for (i = 0; i < CCB->SenseDataLength; i++) |
| 2593 | BusLogic_Notice(" %02X", HostAdapter, Command->sense_buffer[i]); |
| 2594 | BusLogic_Notice("\n", HostAdapter); |
| 2595 | } |
| 2596 | } |
| 2597 | break; |
| 2598 | } |
| 2599 | /* |
| 2600 | When an INQUIRY command completes normally, save the |
| 2601 | CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit |
| 2602 | Wide Data Transfers Supported) bits. |
| 2603 | */ |
| 2604 | if (CCB->CDB[0] == INQUIRY && CCB->CDB[1] == 0 && CCB->HostAdapterStatus == BusLogic_CommandCompletedNormally) { |
| 2605 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[CCB->TargetID]; |
| 2606 | struct SCSI_Inquiry *InquiryResult = (struct SCSI_Inquiry *) Command->request_buffer; |
| 2607 | TargetFlags->TargetExists = true; |
| 2608 | TargetFlags->TaggedQueuingSupported = InquiryResult->CmdQue; |
| 2609 | TargetFlags->WideTransfersSupported = InquiryResult->WBus16; |
| 2610 | } |
| 2611 | /* |
| 2612 | Place CCB back on the Host Adapter's free list. |
| 2613 | */ |
| 2614 | BusLogic_DeallocateCCB(CCB); |
| 2615 | /* |
| 2616 | Call the SCSI Command Completion Routine. |
| 2617 | */ |
| 2618 | Command->scsi_done(Command); |
| 2619 | } |
| 2620 | } |
| 2621 | HostAdapter->ProcessCompletedCCBsActive = false; |
| 2622 | } |
| 2623 | |
| 2624 | |
| 2625 | /* |
| 2626 | BusLogic_InterruptHandler handles hardware interrupts from BusLogic Host |
| 2627 | Adapters. |
| 2628 | */ |
| 2629 | |
| 2630 | static irqreturn_t BusLogic_InterruptHandler(int IRQ_Channel, void *DeviceIdentifier, struct pt_regs *InterruptRegisters) |
| 2631 | { |
| 2632 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) DeviceIdentifier; |
| 2633 | unsigned long ProcessorFlags; |
| 2634 | /* |
| 2635 | Acquire exclusive access to Host Adapter. |
| 2636 | */ |
| 2637 | spin_lock_irqsave(HostAdapter->SCSI_Host->host_lock, ProcessorFlags); |
| 2638 | /* |
| 2639 | Handle Interrupts appropriately for each Host Adapter type. |
| 2640 | */ |
| 2641 | if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) { |
| 2642 | union BusLogic_InterruptRegister InterruptRegister; |
| 2643 | /* |
| 2644 | Read the Host Adapter Interrupt Register. |
| 2645 | */ |
| 2646 | InterruptRegister.All = BusLogic_ReadInterruptRegister(HostAdapter); |
| 2647 | if (InterruptRegister.ir.InterruptValid) { |
| 2648 | /* |
| 2649 | Acknowledge the interrupt and reset the Host Adapter |
| 2650 | Interrupt Register. |
| 2651 | */ |
| 2652 | BusLogic_InterruptReset(HostAdapter); |
| 2653 | /* |
| 2654 | Process valid External SCSI Bus Reset and Incoming Mailbox |
| 2655 | Loaded Interrupts. Command Complete Interrupts are noted, |
| 2656 | and Outgoing Mailbox Available Interrupts are ignored, as |
| 2657 | they are never enabled. |
| 2658 | */ |
| 2659 | if (InterruptRegister.ir.ExternalBusReset) |
| 2660 | HostAdapter->HostAdapterExternalReset = true; |
| 2661 | else if (InterruptRegister.ir.IncomingMailboxLoaded) |
| 2662 | BusLogic_ScanIncomingMailboxes(HostAdapter); |
| 2663 | else if (InterruptRegister.ir.CommandComplete) |
| 2664 | HostAdapter->HostAdapterCommandCompleted = true; |
| 2665 | } |
| 2666 | } else { |
| 2667 | /* |
| 2668 | Check if there is a pending interrupt for this Host Adapter. |
| 2669 | */ |
| 2670 | if (FlashPoint_InterruptPending(HostAdapter->CardHandle)) |
| 2671 | switch (FlashPoint_HandleInterrupt(HostAdapter->CardHandle)) { |
| 2672 | case FlashPoint_NormalInterrupt: |
| 2673 | break; |
| 2674 | case FlashPoint_ExternalBusReset: |
| 2675 | HostAdapter->HostAdapterExternalReset = true; |
| 2676 | break; |
| 2677 | case FlashPoint_InternalError: |
| 2678 | BusLogic_Warning("Internal FlashPoint Error detected" " - Resetting Host Adapter\n", HostAdapter); |
| 2679 | HostAdapter->HostAdapterInternalError = true; |
| 2680 | break; |
| 2681 | } |
| 2682 | } |
| 2683 | /* |
| 2684 | Process any completed CCBs. |
| 2685 | */ |
| 2686 | if (HostAdapter->FirstCompletedCCB != NULL) |
| 2687 | BusLogic_ProcessCompletedCCBs(HostAdapter); |
| 2688 | /* |
| 2689 | Reset the Host Adapter if requested. |
| 2690 | */ |
| 2691 | if (HostAdapter->HostAdapterExternalReset) { |
| 2692 | BusLogic_Warning("Resetting %s due to External SCSI Bus Reset\n", HostAdapter, HostAdapter->FullModelName); |
| 2693 | BusLogic_IncrementErrorCounter(&HostAdapter->ExternalHostAdapterResets); |
| 2694 | BusLogic_ResetHostAdapter(HostAdapter, false); |
| 2695 | HostAdapter->HostAdapterExternalReset = false; |
| 2696 | } else if (HostAdapter->HostAdapterInternalError) { |
| 2697 | BusLogic_Warning("Resetting %s due to Host Adapter Internal Error\n", HostAdapter, HostAdapter->FullModelName); |
| 2698 | BusLogic_IncrementErrorCounter(&HostAdapter->HostAdapterInternalErrors); |
| 2699 | BusLogic_ResetHostAdapter(HostAdapter, true); |
| 2700 | HostAdapter->HostAdapterInternalError = false; |
| 2701 | } |
| 2702 | /* |
| 2703 | Release exclusive access to Host Adapter. |
| 2704 | */ |
| 2705 | spin_unlock_irqrestore(HostAdapter->SCSI_Host->host_lock, ProcessorFlags); |
| 2706 | return IRQ_HANDLED; |
| 2707 | } |
| 2708 | |
| 2709 | |
| 2710 | /* |
| 2711 | BusLogic_WriteOutgoingMailbox places CCB and Action Code into an Outgoing |
| 2712 | Mailbox for execution by Host Adapter. The Host Adapter's Lock should |
| 2713 | already have been acquired by the caller. |
| 2714 | */ |
| 2715 | |
| 2716 | static boolean BusLogic_WriteOutgoingMailbox(struct BusLogic_HostAdapter |
| 2717 | *HostAdapter, enum BusLogic_ActionCode ActionCode, struct BusLogic_CCB *CCB) |
| 2718 | { |
| 2719 | struct BusLogic_OutgoingMailbox *NextOutgoingMailbox; |
| 2720 | NextOutgoingMailbox = HostAdapter->NextOutgoingMailbox; |
| 2721 | if (NextOutgoingMailbox->ActionCode == BusLogic_OutgoingMailboxFree) { |
| 2722 | CCB->Status = BusLogic_CCB_Active; |
| 2723 | /* |
| 2724 | The CCB field must be written before the Action Code field since |
| 2725 | the Host Adapter is operating asynchronously and the locking code |
| 2726 | does not protect against simultaneous access by the Host Adapter. |
| 2727 | */ |
| 2728 | NextOutgoingMailbox->CCB = CCB->DMA_Handle; |
| 2729 | NextOutgoingMailbox->ActionCode = ActionCode; |
| 2730 | BusLogic_StartMailboxCommand(HostAdapter); |
| 2731 | if (++NextOutgoingMailbox > HostAdapter->LastOutgoingMailbox) |
| 2732 | NextOutgoingMailbox = HostAdapter->FirstOutgoingMailbox; |
| 2733 | HostAdapter->NextOutgoingMailbox = NextOutgoingMailbox; |
| 2734 | if (ActionCode == BusLogic_MailboxStartCommand) { |
| 2735 | HostAdapter->ActiveCommands[CCB->TargetID]++; |
| 2736 | if (CCB->Opcode != BusLogic_BusDeviceReset) |
| 2737 | HostAdapter->TargetStatistics[CCB->TargetID].CommandsAttempted++; |
| 2738 | } |
| 2739 | return true; |
| 2740 | } |
| 2741 | return false; |
| 2742 | } |
| 2743 | |
| 2744 | /* Error Handling (EH) support */ |
| 2745 | |
| 2746 | static int BusLogic_host_reset(struct scsi_cmnd * SCpnt) |
| 2747 | { |
| 2748 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) SCpnt->device->host->hostdata; |
| 2749 | |
| 2750 | unsigned int id = SCpnt->device->id; |
| 2751 | struct BusLogic_TargetStatistics *stats = &HostAdapter->TargetStatistics[id]; |
Jeff Garzik | df0ae24 | 2005-05-28 07:57:14 -0400 | [diff] [blame] | 2752 | int rc; |
| 2753 | |
| 2754 | spin_lock_irq(SCpnt->device->host->host_lock); |
| 2755 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2756 | BusLogic_IncrementErrorCounter(&stats->HostAdapterResetsRequested); |
| 2757 | |
Jeff Garzik | df0ae24 | 2005-05-28 07:57:14 -0400 | [diff] [blame] | 2758 | rc = BusLogic_ResetHostAdapter(HostAdapter, false); |
| 2759 | spin_unlock_irq(SCpnt->device->host->host_lock); |
| 2760 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2761 | } |
| 2762 | |
| 2763 | /* |
| 2764 | BusLogic_QueueCommand creates a CCB for Command and places it into an |
| 2765 | Outgoing Mailbox for execution by the associated Host Adapter. |
| 2766 | */ |
| 2767 | |
| 2768 | static int BusLogic_QueueCommand(struct scsi_cmnd *Command, void (*CompletionRoutine) (struct scsi_cmnd *)) |
| 2769 | { |
| 2770 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Command->device->host->hostdata; |
| 2771 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[Command->device->id]; |
| 2772 | struct BusLogic_TargetStatistics *TargetStatistics = HostAdapter->TargetStatistics; |
| 2773 | unsigned char *CDB = Command->cmnd; |
| 2774 | int CDB_Length = Command->cmd_len; |
| 2775 | int TargetID = Command->device->id; |
| 2776 | int LogicalUnit = Command->device->lun; |
| 2777 | void *BufferPointer = Command->request_buffer; |
| 2778 | int BufferLength = Command->request_bufflen; |
| 2779 | int SegmentCount = Command->use_sg; |
| 2780 | struct BusLogic_CCB *CCB; |
| 2781 | /* |
| 2782 | SCSI REQUEST_SENSE commands will be executed automatically by the Host |
| 2783 | Adapter for any errors, so they should not be executed explicitly unless |
| 2784 | the Sense Data is zero indicating that no error occurred. |
| 2785 | */ |
| 2786 | if (CDB[0] == REQUEST_SENSE && Command->sense_buffer[0] != 0) { |
| 2787 | Command->result = DID_OK << 16; |
| 2788 | CompletionRoutine(Command); |
| 2789 | return 0; |
| 2790 | } |
| 2791 | /* |
| 2792 | Allocate a CCB from the Host Adapter's free list. In the unlikely event |
| 2793 | that there are none available and memory allocation fails, wait 1 second |
| 2794 | and try again. If that fails, the Host Adapter is probably hung so signal |
| 2795 | an error as a Host Adapter Hard Reset should be initiated soon. |
| 2796 | */ |
| 2797 | CCB = BusLogic_AllocateCCB(HostAdapter); |
| 2798 | if (CCB == NULL) { |
| 2799 | spin_unlock_irq(HostAdapter->SCSI_Host->host_lock); |
| 2800 | BusLogic_Delay(1); |
| 2801 | spin_lock_irq(HostAdapter->SCSI_Host->host_lock); |
| 2802 | CCB = BusLogic_AllocateCCB(HostAdapter); |
| 2803 | if (CCB == NULL) { |
| 2804 | Command->result = DID_ERROR << 16; |
| 2805 | CompletionRoutine(Command); |
| 2806 | return 0; |
| 2807 | } |
| 2808 | } |
| 2809 | /* |
| 2810 | Initialize the fields in the BusLogic Command Control Block (CCB). |
| 2811 | */ |
| 2812 | if (SegmentCount == 0 && BufferLength != 0) { |
| 2813 | CCB->Opcode = BusLogic_InitiatorCCB; |
| 2814 | CCB->DataLength = BufferLength; |
| 2815 | CCB->DataPointer = pci_map_single(HostAdapter->PCI_Device, |
| 2816 | BufferPointer, BufferLength, |
| 2817 | Command->sc_data_direction); |
| 2818 | } else if (SegmentCount != 0) { |
| 2819 | struct scatterlist *ScatterList = (struct scatterlist *) BufferPointer; |
| 2820 | int Segment, Count; |
| 2821 | |
| 2822 | Count = pci_map_sg(HostAdapter->PCI_Device, ScatterList, SegmentCount, |
| 2823 | Command->sc_data_direction); |
| 2824 | CCB->Opcode = BusLogic_InitiatorCCB_ScatterGather; |
| 2825 | CCB->DataLength = Count * sizeof(struct BusLogic_ScatterGatherSegment); |
| 2826 | if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) |
| 2827 | CCB->DataPointer = (unsigned int) CCB->DMA_Handle + ((unsigned long) &CCB->ScatterGatherList - (unsigned long) CCB); |
| 2828 | else |
| 2829 | CCB->DataPointer = Virtual_to_32Bit_Virtual(CCB->ScatterGatherList); |
| 2830 | for (Segment = 0; Segment < Count; Segment++) { |
| 2831 | CCB->ScatterGatherList[Segment].SegmentByteCount = sg_dma_len(ScatterList + Segment); |
| 2832 | CCB->ScatterGatherList[Segment].SegmentDataPointer = sg_dma_address(ScatterList + Segment); |
| 2833 | } |
| 2834 | } else { |
| 2835 | CCB->Opcode = BusLogic_InitiatorCCB; |
| 2836 | CCB->DataLength = BufferLength; |
| 2837 | CCB->DataPointer = 0; |
| 2838 | } |
| 2839 | switch (CDB[0]) { |
| 2840 | case READ_6: |
| 2841 | case READ_10: |
| 2842 | CCB->DataDirection = BusLogic_DataInLengthChecked; |
| 2843 | TargetStatistics[TargetID].ReadCommands++; |
| 2844 | BusLogic_IncrementByteCounter(&TargetStatistics[TargetID].TotalBytesRead, BufferLength); |
| 2845 | BusLogic_IncrementSizeBucket(TargetStatistics[TargetID].ReadCommandSizeBuckets, BufferLength); |
| 2846 | break; |
| 2847 | case WRITE_6: |
| 2848 | case WRITE_10: |
| 2849 | CCB->DataDirection = BusLogic_DataOutLengthChecked; |
| 2850 | TargetStatistics[TargetID].WriteCommands++; |
| 2851 | BusLogic_IncrementByteCounter(&TargetStatistics[TargetID].TotalBytesWritten, BufferLength); |
| 2852 | BusLogic_IncrementSizeBucket(TargetStatistics[TargetID].WriteCommandSizeBuckets, BufferLength); |
| 2853 | break; |
| 2854 | default: |
| 2855 | CCB->DataDirection = BusLogic_UncheckedDataTransfer; |
| 2856 | break; |
| 2857 | } |
| 2858 | CCB->CDB_Length = CDB_Length; |
| 2859 | CCB->HostAdapterStatus = 0; |
| 2860 | CCB->TargetDeviceStatus = 0; |
| 2861 | CCB->TargetID = TargetID; |
| 2862 | CCB->LogicalUnit = LogicalUnit; |
| 2863 | CCB->TagEnable = false; |
| 2864 | CCB->LegacyTagEnable = false; |
| 2865 | /* |
| 2866 | BusLogic recommends that after a Reset the first couple of commands that |
| 2867 | are sent to a Target Device be sent in a non Tagged Queue fashion so that |
| 2868 | the Host Adapter and Target Device can establish Synchronous and Wide |
| 2869 | Transfer before Queue Tag messages can interfere with the Synchronous and |
| 2870 | Wide Negotiation messages. By waiting to enable Tagged Queuing until after |
| 2871 | the first BusLogic_MaxTaggedQueueDepth commands have been queued, it is |
| 2872 | assured that after a Reset any pending commands are requeued before Tagged |
| 2873 | Queuing is enabled and that the Tagged Queuing message will not occur while |
| 2874 | the partition table is being printed. In addition, some devices do not |
| 2875 | properly handle the transition from non-tagged to tagged commands, so it is |
| 2876 | necessary to wait until there are no pending commands for a target device |
| 2877 | before queuing tagged commands. |
| 2878 | */ |
| 2879 | if (HostAdapter->CommandsSinceReset[TargetID]++ >= |
| 2880 | BusLogic_MaxTaggedQueueDepth && !TargetFlags->TaggedQueuingActive && HostAdapter->ActiveCommands[TargetID] == 0 && TargetFlags->TaggedQueuingSupported && (HostAdapter->TaggedQueuingPermitted & (1 << TargetID))) { |
| 2881 | TargetFlags->TaggedQueuingActive = true; |
| 2882 | BusLogic_Notice("Tagged Queuing now active for Target %d\n", HostAdapter, TargetID); |
| 2883 | } |
| 2884 | if (TargetFlags->TaggedQueuingActive) { |
| 2885 | enum BusLogic_QueueTag QueueTag = BusLogic_SimpleQueueTag; |
| 2886 | /* |
| 2887 | When using Tagged Queuing with Simple Queue Tags, it appears that disk |
| 2888 | drive controllers do not guarantee that a queued command will not |
| 2889 | remain in a disconnected state indefinitely if commands that read or |
| 2890 | write nearer the head position continue to arrive without interruption. |
| 2891 | Therefore, for each Target Device this driver keeps track of the last |
| 2892 | time either the queue was empty or an Ordered Queue Tag was issued. If |
| 2893 | more than 4 seconds (one fifth of the 20 second disk timeout) have |
| 2894 | elapsed since this last sequence point, this command will be issued |
| 2895 | with an Ordered Queue Tag rather than a Simple Queue Tag, which forces |
| 2896 | the Target Device to complete all previously queued commands before |
| 2897 | this command may be executed. |
| 2898 | */ |
| 2899 | if (HostAdapter->ActiveCommands[TargetID] == 0) |
| 2900 | HostAdapter->LastSequencePoint[TargetID] = jiffies; |
Marcelo Feitoza Parisi | 60c904a | 2006-03-28 01:56:47 -0800 | [diff] [blame] | 2901 | else if (time_after(jiffies, HostAdapter->LastSequencePoint[TargetID] + 4 * HZ)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2902 | HostAdapter->LastSequencePoint[TargetID] = jiffies; |
| 2903 | QueueTag = BusLogic_OrderedQueueTag; |
| 2904 | } |
| 2905 | if (HostAdapter->ExtendedLUNSupport) { |
| 2906 | CCB->TagEnable = true; |
| 2907 | CCB->QueueTag = QueueTag; |
| 2908 | } else { |
| 2909 | CCB->LegacyTagEnable = true; |
| 2910 | CCB->LegacyQueueTag = QueueTag; |
| 2911 | } |
| 2912 | } |
| 2913 | memcpy(CCB->CDB, CDB, CDB_Length); |
| 2914 | CCB->SenseDataLength = sizeof(Command->sense_buffer); |
| 2915 | CCB->SenseDataPointer = pci_map_single(HostAdapter->PCI_Device, Command->sense_buffer, CCB->SenseDataLength, PCI_DMA_FROMDEVICE); |
| 2916 | CCB->Command = Command; |
| 2917 | Command->scsi_done = CompletionRoutine; |
| 2918 | if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) { |
| 2919 | /* |
| 2920 | Place the CCB in an Outgoing Mailbox. The higher levels of the SCSI |
| 2921 | Subsystem should not attempt to queue more commands than can be placed |
| 2922 | in Outgoing Mailboxes, so there should always be one free. In the |
| 2923 | unlikely event that there are none available, wait 1 second and try |
| 2924 | again. If that fails, the Host Adapter is probably hung so signal an |
| 2925 | error as a Host Adapter Hard Reset should be initiated soon. |
| 2926 | */ |
| 2927 | if (!BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxStartCommand, CCB)) { |
| 2928 | spin_unlock_irq(HostAdapter->SCSI_Host->host_lock); |
| 2929 | BusLogic_Warning("Unable to write Outgoing Mailbox - " "Pausing for 1 second\n", HostAdapter); |
| 2930 | BusLogic_Delay(1); |
| 2931 | spin_lock_irq(HostAdapter->SCSI_Host->host_lock); |
| 2932 | if (!BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxStartCommand, CCB)) { |
| 2933 | BusLogic_Warning("Still unable to write Outgoing Mailbox - " "Host Adapter Dead?\n", HostAdapter); |
| 2934 | BusLogic_DeallocateCCB(CCB); |
| 2935 | Command->result = DID_ERROR << 16; |
| 2936 | Command->scsi_done(Command); |
| 2937 | } |
| 2938 | } |
| 2939 | } else { |
| 2940 | /* |
| 2941 | Call the FlashPoint SCCB Manager to start execution of the CCB. |
| 2942 | */ |
| 2943 | CCB->Status = BusLogic_CCB_Active; |
| 2944 | HostAdapter->ActiveCommands[TargetID]++; |
| 2945 | TargetStatistics[TargetID].CommandsAttempted++; |
| 2946 | FlashPoint_StartCCB(HostAdapter->CardHandle, CCB); |
| 2947 | /* |
| 2948 | The Command may have already completed and BusLogic_QueueCompletedCCB |
| 2949 | been called, or it may still be pending. |
| 2950 | */ |
| 2951 | if (CCB->Status == BusLogic_CCB_Completed) |
| 2952 | BusLogic_ProcessCompletedCCBs(HostAdapter); |
| 2953 | } |
| 2954 | return 0; |
| 2955 | } |
| 2956 | |
| 2957 | |
| 2958 | /* |
| 2959 | BusLogic_AbortCommand aborts Command if possible. |
| 2960 | */ |
| 2961 | |
| 2962 | static int BusLogic_AbortCommand(struct scsi_cmnd *Command) |
| 2963 | { |
| 2964 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) Command->device->host->hostdata; |
| 2965 | |
| 2966 | int TargetID = Command->device->id; |
| 2967 | struct BusLogic_CCB *CCB; |
| 2968 | BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsRequested); |
| 2969 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2970 | Attempt to find an Active CCB for this Command. If no Active CCB for this |
| 2971 | Command is found, then no Abort is necessary. |
| 2972 | */ |
| 2973 | for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll) |
| 2974 | if (CCB->Command == Command) |
| 2975 | break; |
| 2976 | if (CCB == NULL) { |
| 2977 | BusLogic_Warning("Unable to Abort Command to Target %d - " "No CCB Found\n", HostAdapter, TargetID); |
| 2978 | return SUCCESS; |
| 2979 | } else if (CCB->Status == BusLogic_CCB_Completed) { |
| 2980 | BusLogic_Warning("Unable to Abort Command to Target %d - " "CCB Completed\n", HostAdapter, TargetID); |
| 2981 | return SUCCESS; |
| 2982 | } else if (CCB->Status == BusLogic_CCB_Reset) { |
| 2983 | BusLogic_Warning("Unable to Abort Command to Target %d - " "CCB Reset\n", HostAdapter, TargetID); |
| 2984 | return SUCCESS; |
| 2985 | } |
| 2986 | if (BusLogic_MultiMasterHostAdapterP(HostAdapter)) { |
| 2987 | /* |
| 2988 | Attempt to Abort this CCB. MultiMaster Firmware versions prior to 5.xx |
| 2989 | do not generate Abort Tag messages, but only generate the non-tagged |
| 2990 | Abort message. Since non-tagged commands are not sent by the Host |
| 2991 | Adapter until the queue of outstanding tagged commands has completed, |
| 2992 | and the Abort message is treated as a non-tagged command, it is |
| 2993 | effectively impossible to abort commands when Tagged Queuing is active. |
| 2994 | Firmware version 5.xx does generate Abort Tag messages, so it is |
| 2995 | possible to abort commands when Tagged Queuing is active. |
| 2996 | */ |
| 2997 | if (HostAdapter->TargetFlags[TargetID].TaggedQueuingActive && HostAdapter->FirmwareVersion[0] < '5') { |
| 2998 | BusLogic_Warning("Unable to Abort CCB #%ld to Target %d - " "Abort Tag Not Supported\n", HostAdapter, CCB->SerialNumber, TargetID); |
| 2999 | return FAILURE; |
| 3000 | } else if (BusLogic_WriteOutgoingMailbox(HostAdapter, BusLogic_MailboxAbortCommand, CCB)) { |
| 3001 | BusLogic_Warning("Aborting CCB #%ld to Target %d\n", HostAdapter, CCB->SerialNumber, TargetID); |
| 3002 | BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsAttempted); |
| 3003 | return SUCCESS; |
| 3004 | } else { |
| 3005 | BusLogic_Warning("Unable to Abort CCB #%ld to Target %d - " "No Outgoing Mailboxes\n", HostAdapter, CCB->SerialNumber, TargetID); |
| 3006 | return FAILURE; |
| 3007 | } |
| 3008 | } else { |
| 3009 | /* |
| 3010 | Call the FlashPoint SCCB Manager to abort execution of the CCB. |
| 3011 | */ |
| 3012 | BusLogic_Warning("Aborting CCB #%ld to Target %d\n", HostAdapter, CCB->SerialNumber, TargetID); |
| 3013 | BusLogic_IncrementErrorCounter(&HostAdapter->TargetStatistics[TargetID].CommandAbortsAttempted); |
| 3014 | FlashPoint_AbortCCB(HostAdapter->CardHandle, CCB); |
| 3015 | /* |
| 3016 | The Abort may have already been completed and |
| 3017 | BusLogic_QueueCompletedCCB been called, or it |
| 3018 | may still be pending. |
| 3019 | */ |
| 3020 | if (CCB->Status == BusLogic_CCB_Completed) { |
| 3021 | BusLogic_ProcessCompletedCCBs(HostAdapter); |
| 3022 | } |
| 3023 | return SUCCESS; |
| 3024 | } |
| 3025 | return SUCCESS; |
| 3026 | } |
| 3027 | |
| 3028 | /* |
| 3029 | BusLogic_ResetHostAdapter resets Host Adapter if possible, marking all |
| 3030 | currently executing SCSI Commands as having been Reset. |
| 3031 | */ |
| 3032 | |
| 3033 | static int BusLogic_ResetHostAdapter(struct BusLogic_HostAdapter *HostAdapter, boolean HardReset) |
| 3034 | { |
| 3035 | struct BusLogic_CCB *CCB; |
| 3036 | int TargetID; |
| 3037 | |
| 3038 | /* |
| 3039 | * Attempt to Reset and Reinitialize the Host Adapter. |
| 3040 | */ |
| 3041 | |
| 3042 | if (!(BusLogic_HardwareResetHostAdapter(HostAdapter, HardReset) && BusLogic_InitializeHostAdapter(HostAdapter))) { |
| 3043 | BusLogic_Error("Resetting %s Failed\n", HostAdapter, HostAdapter->FullModelName); |
| 3044 | return FAILURE; |
| 3045 | } |
| 3046 | |
| 3047 | /* |
| 3048 | * Deallocate all currently executing CCBs. |
| 3049 | */ |
| 3050 | |
| 3051 | for (CCB = HostAdapter->All_CCBs; CCB != NULL; CCB = CCB->NextAll) |
| 3052 | if (CCB->Status == BusLogic_CCB_Active) |
| 3053 | BusLogic_DeallocateCCB(CCB); |
| 3054 | /* |
| 3055 | * Wait a few seconds between the Host Adapter Hard Reset which |
| 3056 | * initiates a SCSI Bus Reset and issuing any SCSI Commands. Some |
| 3057 | * SCSI devices get confused if they receive SCSI Commands too soon |
| 3058 | * after a SCSI Bus Reset. |
| 3059 | */ |
| 3060 | |
| 3061 | if (HardReset) { |
| 3062 | spin_unlock_irq(HostAdapter->SCSI_Host->host_lock); |
| 3063 | BusLogic_Delay(HostAdapter->BusSettleTime); |
| 3064 | spin_lock_irq(HostAdapter->SCSI_Host->host_lock); |
| 3065 | } |
| 3066 | |
| 3067 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { |
| 3068 | HostAdapter->LastResetAttempted[TargetID] = jiffies; |
| 3069 | HostAdapter->LastResetCompleted[TargetID] = jiffies; |
| 3070 | } |
| 3071 | return SUCCESS; |
| 3072 | } |
| 3073 | |
| 3074 | /* |
| 3075 | BusLogic_BIOSDiskParameters returns the Heads/Sectors/Cylinders BIOS Disk |
| 3076 | Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and |
| 3077 | the appropriate number of cylinders so as not to exceed drive capacity. In |
| 3078 | order for disks equal to or larger than 1 GB to be addressable by the BIOS |
| 3079 | without exceeding the BIOS limitation of 1024 cylinders, Extended Translation |
| 3080 | may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C" |
| 3081 | series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A" |
| 3082 | series MultiMaster Host Adapters. With Extended Translation enabled, drives |
| 3083 | between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128 |
| 3084 | heads and 32 sectors, and drives above 2 GB inclusive are given a disk |
| 3085 | geometry of 255 heads and 63 sectors. However, if the BIOS detects that the |
| 3086 | Extended Translation setting does not match the geometry in the partition |
| 3087 | table, then the translation inferred from the partition table will be used by |
| 3088 | the BIOS, and a warning may be displayed. |
| 3089 | */ |
| 3090 | |
| 3091 | static int BusLogic_BIOSDiskParameters(struct scsi_device *sdev, struct block_device *Device, sector_t capacity, int *Parameters) |
| 3092 | { |
| 3093 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) sdev->host->hostdata; |
| 3094 | struct BIOS_DiskParameters *DiskParameters = (struct BIOS_DiskParameters *) Parameters; |
| 3095 | unsigned char *buf; |
| 3096 | if (HostAdapter->ExtendedTranslationEnabled && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */ ) { |
| 3097 | if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */ ) { |
| 3098 | DiskParameters->Heads = 255; |
| 3099 | DiskParameters->Sectors = 63; |
| 3100 | } else { |
| 3101 | DiskParameters->Heads = 128; |
| 3102 | DiskParameters->Sectors = 32; |
| 3103 | } |
| 3104 | } else { |
| 3105 | DiskParameters->Heads = 64; |
| 3106 | DiskParameters->Sectors = 32; |
| 3107 | } |
| 3108 | DiskParameters->Cylinders = (unsigned long) capacity / (DiskParameters->Heads * DiskParameters->Sectors); |
| 3109 | buf = scsi_bios_ptable(Device); |
| 3110 | if (buf == NULL) |
| 3111 | return 0; |
| 3112 | /* |
| 3113 | If the boot sector partition table flag is valid, search for a partition |
| 3114 | table entry whose end_head matches one of the standard BusLogic geometry |
| 3115 | translations (64/32, 128/32, or 255/63). |
| 3116 | */ |
| 3117 | if (*(unsigned short *) (buf + 64) == 0xAA55) { |
| 3118 | struct partition *FirstPartitionEntry = (struct partition *) buf; |
| 3119 | struct partition *PartitionEntry = FirstPartitionEntry; |
| 3120 | int SavedCylinders = DiskParameters->Cylinders, PartitionNumber; |
| 3121 | unsigned char PartitionEntryEndHead = 0, PartitionEntryEndSector = 0; |
| 3122 | for (PartitionNumber = 0; PartitionNumber < 4; PartitionNumber++) { |
| 3123 | PartitionEntryEndHead = PartitionEntry->end_head; |
| 3124 | PartitionEntryEndSector = PartitionEntry->end_sector & 0x3F; |
| 3125 | if (PartitionEntryEndHead == 64 - 1) { |
| 3126 | DiskParameters->Heads = 64; |
| 3127 | DiskParameters->Sectors = 32; |
| 3128 | break; |
| 3129 | } else if (PartitionEntryEndHead == 128 - 1) { |
| 3130 | DiskParameters->Heads = 128; |
| 3131 | DiskParameters->Sectors = 32; |
| 3132 | break; |
| 3133 | } else if (PartitionEntryEndHead == 255 - 1) { |
| 3134 | DiskParameters->Heads = 255; |
| 3135 | DiskParameters->Sectors = 63; |
| 3136 | break; |
| 3137 | } |
| 3138 | PartitionEntry++; |
| 3139 | } |
| 3140 | if (PartitionNumber == 4) { |
| 3141 | PartitionEntryEndHead = FirstPartitionEntry->end_head; |
| 3142 | PartitionEntryEndSector = FirstPartitionEntry->end_sector & 0x3F; |
| 3143 | } |
| 3144 | DiskParameters->Cylinders = (unsigned long) capacity / (DiskParameters->Heads * DiskParameters->Sectors); |
| 3145 | if (PartitionNumber < 4 && PartitionEntryEndSector == DiskParameters->Sectors) { |
| 3146 | if (DiskParameters->Cylinders != SavedCylinders) |
| 3147 | BusLogic_Warning("Adopting Geometry %d/%d from Partition Table\n", HostAdapter, DiskParameters->Heads, DiskParameters->Sectors); |
| 3148 | } else if (PartitionEntryEndHead > 0 || PartitionEntryEndSector > 0) { |
| 3149 | BusLogic_Warning("Warning: Partition Table appears to " "have Geometry %d/%d which is\n", HostAdapter, PartitionEntryEndHead + 1, PartitionEntryEndSector); |
| 3150 | BusLogic_Warning("not compatible with current BusLogic " "Host Adapter Geometry %d/%d\n", HostAdapter, DiskParameters->Heads, DiskParameters->Sectors); |
| 3151 | } |
| 3152 | } |
| 3153 | kfree(buf); |
| 3154 | return 0; |
| 3155 | } |
| 3156 | |
| 3157 | |
| 3158 | /* |
| 3159 | BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>. |
| 3160 | */ |
| 3161 | |
| 3162 | static int BusLogic_ProcDirectoryInfo(struct Scsi_Host *shost, char *ProcBuffer, char **StartPointer, off_t Offset, int BytesAvailable, int WriteFlag) |
| 3163 | { |
| 3164 | struct BusLogic_HostAdapter *HostAdapter = (struct BusLogic_HostAdapter *) shost->hostdata; |
| 3165 | struct BusLogic_TargetStatistics *TargetStatistics; |
| 3166 | int TargetID, Length; |
| 3167 | char *Buffer; |
| 3168 | |
| 3169 | TargetStatistics = HostAdapter->TargetStatistics; |
| 3170 | if (WriteFlag) { |
| 3171 | HostAdapter->ExternalHostAdapterResets = 0; |
| 3172 | HostAdapter->HostAdapterInternalErrors = 0; |
| 3173 | memset(TargetStatistics, 0, BusLogic_MaxTargetDevices * sizeof(struct BusLogic_TargetStatistics)); |
| 3174 | return 0; |
| 3175 | } |
| 3176 | Buffer = HostAdapter->MessageBuffer; |
| 3177 | Length = HostAdapter->MessageBufferLength; |
| 3178 | Length += sprintf(&Buffer[Length], "\n\ |
| 3179 | Current Driver Queue Depth: %d\n\ |
| 3180 | Currently Allocated CCBs: %d\n", HostAdapter->DriverQueueDepth, HostAdapter->AllocatedCCBs); |
| 3181 | Length += sprintf(&Buffer[Length], "\n\n\ |
| 3182 | DATA TRANSFER STATISTICS\n\ |
| 3183 | \n\ |
| 3184 | Target Tagged Queuing Queue Depth Active Attempted Completed\n\ |
| 3185 | ====== ============== =========== ====== ========= =========\n"); |
| 3186 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { |
| 3187 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; |
| 3188 | if (!TargetFlags->TargetExists) |
| 3189 | continue; |
| 3190 | Length += sprintf(&Buffer[Length], " %2d %s", TargetID, (TargetFlags->TaggedQueuingSupported ? (TargetFlags->TaggedQueuingActive ? " Active" : (HostAdapter->TaggedQueuingPermitted & (1 << TargetID) |
| 3191 | ? " Permitted" : " Disabled")) |
| 3192 | : "Not Supported")); |
| 3193 | Length += sprintf(&Buffer[Length], |
| 3194 | " %3d %3u %9u %9u\n", HostAdapter->QueueDepth[TargetID], HostAdapter->ActiveCommands[TargetID], TargetStatistics[TargetID].CommandsAttempted, TargetStatistics[TargetID].CommandsCompleted); |
| 3195 | } |
| 3196 | Length += sprintf(&Buffer[Length], "\n\ |
| 3197 | Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\ |
| 3198 | ====== ============= ============== =================== ===================\n"); |
| 3199 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { |
| 3200 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; |
| 3201 | if (!TargetFlags->TargetExists) |
| 3202 | continue; |
| 3203 | Length += sprintf(&Buffer[Length], " %2d %9u %9u", TargetID, TargetStatistics[TargetID].ReadCommands, TargetStatistics[TargetID].WriteCommands); |
| 3204 | if (TargetStatistics[TargetID].TotalBytesRead.Billions > 0) |
| 3205 | Length += sprintf(&Buffer[Length], " %9u%09u", TargetStatistics[TargetID].TotalBytesRead.Billions, TargetStatistics[TargetID].TotalBytesRead.Units); |
| 3206 | else |
| 3207 | Length += sprintf(&Buffer[Length], " %9u", TargetStatistics[TargetID].TotalBytesRead.Units); |
| 3208 | if (TargetStatistics[TargetID].TotalBytesWritten.Billions > 0) |
| 3209 | Length += sprintf(&Buffer[Length], " %9u%09u\n", TargetStatistics[TargetID].TotalBytesWritten.Billions, TargetStatistics[TargetID].TotalBytesWritten.Units); |
| 3210 | else |
| 3211 | Length += sprintf(&Buffer[Length], " %9u\n", TargetStatistics[TargetID].TotalBytesWritten.Units); |
| 3212 | } |
| 3213 | Length += sprintf(&Buffer[Length], "\n\ |
| 3214 | Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\ |
| 3215 | ====== ======= ========= ========= ========= ========= =========\n"); |
| 3216 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { |
| 3217 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; |
| 3218 | if (!TargetFlags->TargetExists) |
| 3219 | continue; |
| 3220 | Length += |
| 3221 | sprintf(&Buffer[Length], |
| 3222 | " %2d Read %9u %9u %9u %9u %9u\n", TargetID, |
| 3223 | TargetStatistics[TargetID].ReadCommandSizeBuckets[0], |
| 3224 | TargetStatistics[TargetID].ReadCommandSizeBuckets[1], TargetStatistics[TargetID].ReadCommandSizeBuckets[2], TargetStatistics[TargetID].ReadCommandSizeBuckets[3], TargetStatistics[TargetID].ReadCommandSizeBuckets[4]); |
| 3225 | Length += |
| 3226 | sprintf(&Buffer[Length], |
| 3227 | " %2d Write %9u %9u %9u %9u %9u\n", TargetID, |
| 3228 | TargetStatistics[TargetID].WriteCommandSizeBuckets[0], |
| 3229 | TargetStatistics[TargetID].WriteCommandSizeBuckets[1], TargetStatistics[TargetID].WriteCommandSizeBuckets[2], TargetStatistics[TargetID].WriteCommandSizeBuckets[3], TargetStatistics[TargetID].WriteCommandSizeBuckets[4]); |
| 3230 | } |
| 3231 | Length += sprintf(&Buffer[Length], "\n\ |
| 3232 | Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\ |
| 3233 | ====== ======= ========= ========= ========= ========= =========\n"); |
| 3234 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { |
| 3235 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; |
| 3236 | if (!TargetFlags->TargetExists) |
| 3237 | continue; |
| 3238 | Length += |
| 3239 | sprintf(&Buffer[Length], |
| 3240 | " %2d Read %9u %9u %9u %9u %9u\n", TargetID, |
| 3241 | TargetStatistics[TargetID].ReadCommandSizeBuckets[5], |
| 3242 | TargetStatistics[TargetID].ReadCommandSizeBuckets[6], TargetStatistics[TargetID].ReadCommandSizeBuckets[7], TargetStatistics[TargetID].ReadCommandSizeBuckets[8], TargetStatistics[TargetID].ReadCommandSizeBuckets[9]); |
| 3243 | Length += |
| 3244 | sprintf(&Buffer[Length], |
| 3245 | " %2d Write %9u %9u %9u %9u %9u\n", TargetID, |
| 3246 | TargetStatistics[TargetID].WriteCommandSizeBuckets[5], |
| 3247 | TargetStatistics[TargetID].WriteCommandSizeBuckets[6], TargetStatistics[TargetID].WriteCommandSizeBuckets[7], TargetStatistics[TargetID].WriteCommandSizeBuckets[8], TargetStatistics[TargetID].WriteCommandSizeBuckets[9]); |
| 3248 | } |
| 3249 | Length += sprintf(&Buffer[Length], "\n\n\ |
| 3250 | ERROR RECOVERY STATISTICS\n\ |
| 3251 | \n\ |
| 3252 | Command Aborts Bus Device Resets Host Adapter Resets\n\ |
| 3253 | Target Requested Completed Requested Completed Requested Completed\n\ |
| 3254 | ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\ |
| 3255 | ====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n"); |
| 3256 | for (TargetID = 0; TargetID < HostAdapter->MaxTargetDevices; TargetID++) { |
| 3257 | struct BusLogic_TargetFlags *TargetFlags = &HostAdapter->TargetFlags[TargetID]; |
| 3258 | if (!TargetFlags->TargetExists) |
| 3259 | continue; |
| 3260 | Length += sprintf(&Buffer[Length], "\ |
| 3261 | %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); |
| 3262 | } |
| 3263 | Length += sprintf(&Buffer[Length], "\nExternal Host Adapter Resets: %d\n", HostAdapter->ExternalHostAdapterResets); |
| 3264 | Length += sprintf(&Buffer[Length], "Host Adapter Internal Errors: %d\n", HostAdapter->HostAdapterInternalErrors); |
| 3265 | if (Length >= BusLogic_MessageBufferSize) |
| 3266 | BusLogic_Error("Message Buffer length %d exceeds size %d\n", HostAdapter, Length, BusLogic_MessageBufferSize); |
| 3267 | if ((Length -= Offset) <= 0) |
| 3268 | return 0; |
| 3269 | if (Length >= BytesAvailable) |
| 3270 | Length = BytesAvailable; |
| 3271 | memcpy(ProcBuffer, HostAdapter->MessageBuffer + Offset, Length); |
| 3272 | *StartPointer = ProcBuffer; |
| 3273 | return Length; |
| 3274 | } |
| 3275 | |
| 3276 | |
| 3277 | /* |
| 3278 | BusLogic_Message prints Driver Messages. |
| 3279 | */ |
| 3280 | |
| 3281 | static void BusLogic_Message(enum BusLogic_MessageLevel MessageLevel, char *Format, struct BusLogic_HostAdapter *HostAdapter, ...) |
| 3282 | { |
| 3283 | static char Buffer[BusLogic_LineBufferSize]; |
| 3284 | static boolean BeginningOfLine = true; |
| 3285 | va_list Arguments; |
| 3286 | int Length = 0; |
| 3287 | va_start(Arguments, HostAdapter); |
| 3288 | Length = vsprintf(Buffer, Format, Arguments); |
| 3289 | va_end(Arguments); |
| 3290 | if (MessageLevel == BusLogic_AnnounceLevel) { |
| 3291 | static int AnnouncementLines = 0; |
| 3292 | strcpy(&HostAdapter->MessageBuffer[HostAdapter->MessageBufferLength], Buffer); |
| 3293 | HostAdapter->MessageBufferLength += Length; |
| 3294 | if (++AnnouncementLines <= 2) |
| 3295 | printk("%sscsi: %s", BusLogic_MessageLevelMap[MessageLevel], Buffer); |
| 3296 | } else if (MessageLevel == BusLogic_InfoLevel) { |
| 3297 | strcpy(&HostAdapter->MessageBuffer[HostAdapter->MessageBufferLength], Buffer); |
| 3298 | HostAdapter->MessageBufferLength += Length; |
| 3299 | if (BeginningOfLine) { |
| 3300 | if (Buffer[0] != '\n' || Length > 1) |
| 3301 | printk("%sscsi%d: %s", BusLogic_MessageLevelMap[MessageLevel], HostAdapter->HostNumber, Buffer); |
| 3302 | } else |
| 3303 | printk("%s", Buffer); |
| 3304 | } else { |
| 3305 | if (BeginningOfLine) { |
| 3306 | if (HostAdapter != NULL && HostAdapter->HostAdapterInitialized) |
| 3307 | printk("%sscsi%d: %s", BusLogic_MessageLevelMap[MessageLevel], HostAdapter->HostNumber, Buffer); |
| 3308 | else |
| 3309 | printk("%s%s", BusLogic_MessageLevelMap[MessageLevel], Buffer); |
| 3310 | } else |
| 3311 | printk("%s", Buffer); |
| 3312 | } |
| 3313 | BeginningOfLine = (Buffer[Length - 1] == '\n'); |
| 3314 | } |
| 3315 | |
| 3316 | |
| 3317 | /* |
| 3318 | BusLogic_ParseKeyword parses an individual option keyword. It returns true |
| 3319 | and updates the pointer if the keyword is recognized and false otherwise. |
| 3320 | */ |
| 3321 | |
| 3322 | static boolean __init BusLogic_ParseKeyword(char **StringPointer, char *Keyword) |
| 3323 | { |
| 3324 | char *Pointer = *StringPointer; |
| 3325 | while (*Keyword != '\0') { |
| 3326 | char StringChar = *Pointer++; |
| 3327 | char KeywordChar = *Keyword++; |
| 3328 | if (StringChar >= 'A' && StringChar <= 'Z') |
| 3329 | StringChar += 'a' - 'Z'; |
| 3330 | if (KeywordChar >= 'A' && KeywordChar <= 'Z') |
| 3331 | KeywordChar += 'a' - 'Z'; |
| 3332 | if (StringChar != KeywordChar) |
| 3333 | return false; |
| 3334 | } |
| 3335 | *StringPointer = Pointer; |
| 3336 | return true; |
| 3337 | } |
| 3338 | |
| 3339 | |
| 3340 | /* |
| 3341 | BusLogic_ParseDriverOptions handles processing of BusLogic Driver Options |
| 3342 | specifications. |
| 3343 | |
| 3344 | BusLogic Driver Options may be specified either via the Linux Kernel Command |
| 3345 | Line or via the Loadable Kernel Module Installation Facility. Driver Options |
| 3346 | for multiple host adapters may be specified either by separating the option |
| 3347 | strings by a semicolon, or by specifying multiple "BusLogic=" strings on the |
| 3348 | command line. Individual option specifications for a single host adapter are |
| 3349 | separated by commas. The Probing and Debugging Options apply to all host |
| 3350 | adapters whereas the remaining options apply individually only to the |
| 3351 | selected host adapter. |
| 3352 | |
| 3353 | The BusLogic Driver Probing Options are described in |
| 3354 | <file:Documentation/scsi/BusLogic.txt>. |
| 3355 | */ |
| 3356 | |
| 3357 | static int __init BusLogic_ParseDriverOptions(char *OptionsString) |
| 3358 | { |
| 3359 | while (true) { |
| 3360 | struct BusLogic_DriverOptions *DriverOptions = &BusLogic_DriverOptions[BusLogic_DriverOptionsCount++]; |
| 3361 | int TargetID; |
| 3362 | memset(DriverOptions, 0, sizeof(struct BusLogic_DriverOptions)); |
| 3363 | while (*OptionsString != '\0' && *OptionsString != ';') { |
| 3364 | /* Probing Options. */ |
| 3365 | if (BusLogic_ParseKeyword(&OptionsString, "IO:")) { |
| 3366 | unsigned long IO_Address = simple_strtoul(OptionsString, &OptionsString, 0); |
| 3367 | BusLogic_ProbeOptions.LimitedProbeISA = true; |
| 3368 | switch (IO_Address) { |
| 3369 | case 0x330: |
| 3370 | BusLogic_ProbeOptions.Probe330 = true; |
| 3371 | break; |
| 3372 | case 0x334: |
| 3373 | BusLogic_ProbeOptions.Probe334 = true; |
| 3374 | break; |
| 3375 | case 0x230: |
| 3376 | BusLogic_ProbeOptions.Probe230 = true; |
| 3377 | break; |
| 3378 | case 0x234: |
| 3379 | BusLogic_ProbeOptions.Probe234 = true; |
| 3380 | break; |
| 3381 | case 0x130: |
| 3382 | BusLogic_ProbeOptions.Probe130 = true; |
| 3383 | break; |
| 3384 | case 0x134: |
| 3385 | BusLogic_ProbeOptions.Probe134 = true; |
| 3386 | break; |
| 3387 | default: |
| 3388 | BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid I/O Address 0x%X)\n", NULL, IO_Address); |
| 3389 | return 0; |
| 3390 | } |
| 3391 | } else if (BusLogic_ParseKeyword(&OptionsString, "NoProbeISA")) |
| 3392 | BusLogic_ProbeOptions.NoProbeISA = true; |
| 3393 | else if (BusLogic_ParseKeyword(&OptionsString, "NoProbePCI")) |
| 3394 | BusLogic_ProbeOptions.NoProbePCI = true; |
| 3395 | else if (BusLogic_ParseKeyword(&OptionsString, "NoProbe")) |
| 3396 | BusLogic_ProbeOptions.NoProbe = true; |
| 3397 | else if (BusLogic_ParseKeyword(&OptionsString, "NoSortPCI")) |
| 3398 | BusLogic_ProbeOptions.NoSortPCI = true; |
| 3399 | else if (BusLogic_ParseKeyword(&OptionsString, "MultiMasterFirst")) |
| 3400 | BusLogic_ProbeOptions.MultiMasterFirst = true; |
| 3401 | else if (BusLogic_ParseKeyword(&OptionsString, "FlashPointFirst")) |
| 3402 | BusLogic_ProbeOptions.FlashPointFirst = true; |
| 3403 | /* Tagged Queuing Options. */ |
| 3404 | else if (BusLogic_ParseKeyword(&OptionsString, "QueueDepth:[") || BusLogic_ParseKeyword(&OptionsString, "QD:[")) { |
| 3405 | for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) { |
| 3406 | unsigned short QueueDepth = simple_strtoul(OptionsString, &OptionsString, 0); |
| 3407 | if (QueueDepth > BusLogic_MaxTaggedQueueDepth) { |
| 3408 | BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, QueueDepth); |
| 3409 | return 0; |
| 3410 | } |
| 3411 | DriverOptions->QueueDepth[TargetID] = QueueDepth; |
| 3412 | if (*OptionsString == ',') |
| 3413 | OptionsString++; |
| 3414 | else if (*OptionsString == ']') |
| 3415 | break; |
| 3416 | else { |
| 3417 | BusLogic_Error("BusLogic: Invalid Driver Options " "(',' or ']' expected at '%s')\n", NULL, OptionsString); |
| 3418 | return 0; |
| 3419 | } |
| 3420 | } |
| 3421 | if (*OptionsString != ']') { |
| 3422 | BusLogic_Error("BusLogic: Invalid Driver Options " "(']' expected at '%s')\n", NULL, OptionsString); |
| 3423 | return 0; |
| 3424 | } else |
| 3425 | OptionsString++; |
| 3426 | } else if (BusLogic_ParseKeyword(&OptionsString, "QueueDepth:") || BusLogic_ParseKeyword(&OptionsString, "QD:")) { |
| 3427 | unsigned short QueueDepth = simple_strtoul(OptionsString, &OptionsString, 0); |
| 3428 | if (QueueDepth == 0 || QueueDepth > BusLogic_MaxTaggedQueueDepth) { |
| 3429 | BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, QueueDepth); |
| 3430 | return 0; |
| 3431 | } |
| 3432 | DriverOptions->CommonQueueDepth = QueueDepth; |
| 3433 | for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) |
| 3434 | DriverOptions->QueueDepth[TargetID] = QueueDepth; |
| 3435 | } else if (BusLogic_ParseKeyword(&OptionsString, "TaggedQueuing:") || BusLogic_ParseKeyword(&OptionsString, "TQ:")) { |
| 3436 | if (BusLogic_ParseKeyword(&OptionsString, "Default")) { |
| 3437 | DriverOptions->TaggedQueuingPermitted = 0x0000; |
| 3438 | DriverOptions->TaggedQueuingPermittedMask = 0x0000; |
| 3439 | } else if (BusLogic_ParseKeyword(&OptionsString, "Enable")) { |
| 3440 | DriverOptions->TaggedQueuingPermitted = 0xFFFF; |
| 3441 | DriverOptions->TaggedQueuingPermittedMask = 0xFFFF; |
| 3442 | } else if (BusLogic_ParseKeyword(&OptionsString, "Disable")) { |
| 3443 | DriverOptions->TaggedQueuingPermitted = 0x0000; |
| 3444 | DriverOptions->TaggedQueuingPermittedMask = 0xFFFF; |
| 3445 | } else { |
| 3446 | unsigned short TargetBit; |
| 3447 | for (TargetID = 0, TargetBit = 1; TargetID < BusLogic_MaxTargetDevices; TargetID++, TargetBit <<= 1) |
| 3448 | switch (*OptionsString++) { |
| 3449 | case 'Y': |
| 3450 | DriverOptions->TaggedQueuingPermitted |= TargetBit; |
| 3451 | DriverOptions->TaggedQueuingPermittedMask |= TargetBit; |
| 3452 | break; |
| 3453 | case 'N': |
| 3454 | DriverOptions->TaggedQueuingPermitted &= ~TargetBit; |
| 3455 | DriverOptions->TaggedQueuingPermittedMask |= TargetBit; |
| 3456 | break; |
| 3457 | case 'X': |
| 3458 | break; |
| 3459 | default: |
| 3460 | OptionsString--; |
| 3461 | TargetID = BusLogic_MaxTargetDevices; |
| 3462 | break; |
| 3463 | } |
| 3464 | } |
| 3465 | } |
| 3466 | /* Miscellaneous Options. */ |
| 3467 | else if (BusLogic_ParseKeyword(&OptionsString, "BusSettleTime:") || BusLogic_ParseKeyword(&OptionsString, "BST:")) { |
| 3468 | unsigned short BusSettleTime = simple_strtoul(OptionsString, &OptionsString, 0); |
| 3469 | if (BusSettleTime > 5 * 60) { |
| 3470 | BusLogic_Error("BusLogic: Invalid Driver Options " "(invalid Bus Settle Time %d)\n", NULL, BusSettleTime); |
| 3471 | return 0; |
| 3472 | } |
| 3473 | DriverOptions->BusSettleTime = BusSettleTime; |
| 3474 | } else if (BusLogic_ParseKeyword(&OptionsString, "InhibitTargetInquiry")) |
| 3475 | DriverOptions->LocalOptions.InhibitTargetInquiry = true; |
| 3476 | /* Debugging Options. */ |
| 3477 | else if (BusLogic_ParseKeyword(&OptionsString, "TraceProbe")) |
| 3478 | BusLogic_GlobalOptions.TraceProbe = true; |
| 3479 | else if (BusLogic_ParseKeyword(&OptionsString, "TraceHardwareReset")) |
| 3480 | BusLogic_GlobalOptions.TraceHardwareReset = true; |
| 3481 | else if (BusLogic_ParseKeyword(&OptionsString, "TraceConfiguration")) |
| 3482 | BusLogic_GlobalOptions.TraceConfiguration = true; |
| 3483 | else if (BusLogic_ParseKeyword(&OptionsString, "TraceErrors")) |
| 3484 | BusLogic_GlobalOptions.TraceErrors = true; |
| 3485 | else if (BusLogic_ParseKeyword(&OptionsString, "Debug")) { |
| 3486 | BusLogic_GlobalOptions.TraceProbe = true; |
| 3487 | BusLogic_GlobalOptions.TraceHardwareReset = true; |
| 3488 | BusLogic_GlobalOptions.TraceConfiguration = true; |
| 3489 | BusLogic_GlobalOptions.TraceErrors = true; |
| 3490 | } |
| 3491 | if (*OptionsString == ',') |
| 3492 | OptionsString++; |
| 3493 | else if (*OptionsString != ';' && *OptionsString != '\0') { |
| 3494 | BusLogic_Error("BusLogic: Unexpected Driver Option '%s' " "ignored\n", NULL, OptionsString); |
| 3495 | *OptionsString = '\0'; |
| 3496 | } |
| 3497 | } |
| 3498 | if (!(BusLogic_DriverOptionsCount == 0 || BusLogic_ProbeInfoCount == 0 || BusLogic_DriverOptionsCount == BusLogic_ProbeInfoCount)) { |
| 3499 | BusLogic_Error("BusLogic: Invalid Driver Options " "(all or no I/O Addresses must be specified)\n", NULL); |
| 3500 | return 0; |
| 3501 | } |
| 3502 | /* |
| 3503 | Tagged Queuing is disabled when the Queue Depth is 1 since queuing |
| 3504 | multiple commands is not possible. |
| 3505 | */ |
| 3506 | for (TargetID = 0; TargetID < BusLogic_MaxTargetDevices; TargetID++) |
| 3507 | if (DriverOptions->QueueDepth[TargetID] == 1) { |
| 3508 | unsigned short TargetBit = 1 << TargetID; |
| 3509 | DriverOptions->TaggedQueuingPermitted &= ~TargetBit; |
| 3510 | DriverOptions->TaggedQueuingPermittedMask |= TargetBit; |
| 3511 | } |
| 3512 | if (*OptionsString == ';') |
| 3513 | OptionsString++; |
| 3514 | if (*OptionsString == '\0') |
| 3515 | return 0; |
| 3516 | } |
| 3517 | return 1; |
| 3518 | } |
| 3519 | |
| 3520 | /* |
| 3521 | Get it all started |
| 3522 | */ |
| 3523 | |
| 3524 | static struct scsi_host_template Bus_Logic_template = { |
| 3525 | .module = THIS_MODULE, |
| 3526 | .proc_name = "BusLogic", |
| 3527 | .proc_info = BusLogic_ProcDirectoryInfo, |
| 3528 | .name = "BusLogic", |
| 3529 | .info = BusLogic_DriverInfo, |
| 3530 | .queuecommand = BusLogic_QueueCommand, |
| 3531 | .slave_configure = BusLogic_SlaveConfigure, |
| 3532 | .bios_param = BusLogic_BIOSDiskParameters, |
| 3533 | .eh_host_reset_handler = BusLogic_host_reset, |
| 3534 | #if 0 |
| 3535 | .eh_abort_handler = BusLogic_AbortCommand, |
| 3536 | #endif |
| 3537 | .unchecked_isa_dma = 1, |
| 3538 | .max_sectors = 128, |
| 3539 | .use_clustering = ENABLE_CLUSTERING, |
| 3540 | }; |
| 3541 | |
| 3542 | /* |
| 3543 | BusLogic_Setup handles processing of Kernel Command Line Arguments. |
| 3544 | */ |
| 3545 | |
| 3546 | static int __init BusLogic_Setup(char *str) |
| 3547 | { |
| 3548 | int ints[3]; |
| 3549 | |
| 3550 | (void) get_options(str, ARRAY_SIZE(ints), ints); |
| 3551 | |
| 3552 | if (ints[0] != 0) { |
| 3553 | BusLogic_Error("BusLogic: Obsolete Command Line Entry " "Format Ignored\n", NULL); |
| 3554 | return 0; |
| 3555 | } |
| 3556 | if (str == NULL || *str == '\0') |
| 3557 | return 0; |
| 3558 | return BusLogic_ParseDriverOptions(str); |
| 3559 | } |
| 3560 | |
| 3561 | /* |
| 3562 | * Exit function. Deletes all hosts associated with this driver. |
| 3563 | */ |
| 3564 | |
| 3565 | static void __exit BusLogic_exit(void) |
| 3566 | { |
| 3567 | struct BusLogic_HostAdapter *ha, *next; |
| 3568 | |
| 3569 | list_for_each_entry_safe(ha, next, &BusLogic_host_list, host_list) |
| 3570 | BusLogic_ReleaseHostAdapter(ha); |
| 3571 | } |
| 3572 | |
| 3573 | __setup("BusLogic=", BusLogic_Setup); |
| 3574 | |
| 3575 | module_init(BusLogic_init); |
| 3576 | module_exit(BusLogic_exit); |