| 1 | // SPDX-License-Identifier: GPL-2.0-only |
| 2 | |
| 3 | /* |
| 4 | |
| 5 | Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters |
| 6 | |
| 7 | Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com> |
| 8 | |
| 9 | |
| 10 | The author respectfully requests that any modifications to this software be |
| 11 | sent directly to him for evaluation and testing. |
| 12 | |
| 13 | Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose |
| 14 | advice has been invaluable, to David Gentzel, for writing the original Linux |
| 15 | BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site. |
| 16 | |
| 17 | Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB |
| 18 | Manager available as freely redistributable source code. |
| 19 | |
| 20 | */ |
| 21 | |
| 22 | #define blogic_drvr_version "2.1.17" |
| 23 | #define blogic_drvr_date "12 September 2013" |
| 24 | |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/interrupt.h> |
| 28 | #include <linux/types.h> |
| 29 | #include <linux/blkdev.h> |
| 30 | #include <linux/delay.h> |
| 31 | #include <linux/ioport.h> |
| 32 | #include <linux/mm.h> |
| 33 | #include <linux/stat.h> |
| 34 | #include <linux/pci.h> |
| 35 | #include <linux/spinlock.h> |
| 36 | #include <linux/jiffies.h> |
| 37 | #include <linux/dma-mapping.h> |
| 38 | #include <linux/slab.h> |
| 39 | #include <linux/msdos_partition.h> |
| 40 | #include <scsi/scsicam.h> |
| 41 | |
| 42 | #include <asm/dma.h> |
| 43 | #include <asm/io.h> |
| 44 | |
| 45 | #include <scsi/scsi.h> |
| 46 | #include <scsi/scsi_cmnd.h> |
| 47 | #include <scsi/scsi_device.h> |
| 48 | #include <scsi/scsi_host.h> |
| 49 | #include <scsi/scsi_tcq.h> |
| 50 | #include "BusLogic.h" |
| 51 | #include "FlashPoint.c" |
| 52 | |
| 53 | #ifndef FAILURE |
| 54 | #define FAILURE (-1) |
| 55 | #endif |
| 56 | |
| 57 | static struct scsi_host_template blogic_template; |
| 58 | |
| 59 | /* |
| 60 | blogic_drvr_options_count is a count of the number of BusLogic Driver |
| 61 | Options specifications provided via the Linux Kernel Command Line or via |
| 62 | the Loadable Kernel Module Installation Facility. |
| 63 | */ |
| 64 | |
| 65 | static int blogic_drvr_options_count; |
| 66 | |
| 67 | |
| 68 | /* |
| 69 | blogic_drvr_options is an array of Driver Options structures representing |
| 70 | BusLogic Driver Options specifications provided via the Linux Kernel Command |
| 71 | Line or via the Loadable Kernel Module Installation Facility. |
| 72 | */ |
| 73 | |
| 74 | static struct blogic_drvr_options blogic_drvr_options[BLOGIC_MAX_ADAPTERS]; |
| 75 | |
| 76 | |
| 77 | /* |
| 78 | BusLogic can be assigned a string by insmod. |
| 79 | */ |
| 80 | |
| 81 | MODULE_LICENSE("GPL"); |
| 82 | #ifdef MODULE |
| 83 | static char *BusLogic; |
| 84 | module_param(BusLogic, charp, 0); |
| 85 | #endif |
| 86 | |
| 87 | |
| 88 | /* |
| 89 | blogic_probe_options is a set of Probe Options to be applied across |
| 90 | all BusLogic Host Adapters. |
| 91 | */ |
| 92 | |
| 93 | static struct blogic_probe_options blogic_probe_options; |
| 94 | |
| 95 | |
| 96 | /* |
| 97 | blogic_global_options is a set of Global Options to be applied across |
| 98 | all BusLogic Host Adapters. |
| 99 | */ |
| 100 | |
| 101 | static struct blogic_global_options blogic_global_options; |
| 102 | |
| 103 | static LIST_HEAD(blogic_host_list); |
| 104 | |
| 105 | /* |
| 106 | blogic_probeinfo_count is the number of entries in blogic_probeinfo_list. |
| 107 | */ |
| 108 | |
| 109 | static int blogic_probeinfo_count; |
| 110 | |
| 111 | |
| 112 | /* |
| 113 | blogic_probeinfo_list is the list of I/O Addresses and Bus Probe Information |
| 114 | to be checked for potential BusLogic Host Adapters. It is initialized by |
| 115 | interrogating the PCI Configuration Space on PCI machines as well as from the |
| 116 | list of standard BusLogic I/O Addresses. |
| 117 | */ |
| 118 | |
| 119 | static struct blogic_probeinfo *blogic_probeinfo_list; |
| 120 | |
| 121 | |
| 122 | /* |
| 123 | blogic_cmd_failure_reason holds a string identifying the reason why a |
| 124 | call to blogic_cmd failed. It is only non-NULL when blogic_cmd |
| 125 | returns a failure code. |
| 126 | */ |
| 127 | |
| 128 | static char *blogic_cmd_failure_reason; |
| 129 | |
| 130 | /* |
| 131 | blogic_announce_drvr announces the Driver Version and Date, Author's |
| 132 | Name, Copyright Notice, and Electronic Mail Address. |
| 133 | */ |
| 134 | |
| 135 | static void blogic_announce_drvr(struct blogic_adapter *adapter) |
| 136 | { |
| 137 | blogic_announce("***** BusLogic SCSI Driver Version " blogic_drvr_version " of " blogic_drvr_date " *****\n", adapter); |
| 138 | blogic_announce("Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>\n", adapter); |
| 139 | } |
| 140 | |
| 141 | |
| 142 | /* |
| 143 | blogic_drvr_info returns the Host Adapter Name to identify this SCSI |
| 144 | Driver and Host Adapter. |
| 145 | */ |
| 146 | |
| 147 | static const char *blogic_drvr_info(struct Scsi_Host *host) |
| 148 | { |
| 149 | struct blogic_adapter *adapter = |
| 150 | (struct blogic_adapter *) host->hostdata; |
| 151 | return adapter->full_model; |
| 152 | } |
| 153 | |
| 154 | /* |
| 155 | blogic_init_ccbs initializes a group of Command Control Blocks (CCBs) |
| 156 | for Host Adapter from the blk_size bytes located at blk_pointer. The newly |
| 157 | created CCBs are added to Host Adapter's free list. |
| 158 | */ |
| 159 | |
| 160 | static void blogic_init_ccbs(struct blogic_adapter *adapter, void *blk_pointer, |
| 161 | int blk_size, dma_addr_t blkp) |
| 162 | { |
| 163 | struct blogic_ccb *ccb = (struct blogic_ccb *) blk_pointer; |
| 164 | unsigned int offset = 0; |
| 165 | memset(blk_pointer, 0, blk_size); |
| 166 | ccb->allocgrp_head = blkp; |
| 167 | ccb->allocgrp_size = blk_size; |
| 168 | while ((blk_size -= sizeof(struct blogic_ccb)) >= 0) { |
| 169 | ccb->status = BLOGIC_CCB_FREE; |
| 170 | ccb->adapter = adapter; |
| 171 | ccb->dma_handle = (u32) blkp + offset; |
| 172 | if (blogic_flashpoint_type(adapter)) { |
| 173 | ccb->callback = blogic_qcompleted_ccb; |
| 174 | ccb->base_addr = adapter->fpinfo.base_addr; |
| 175 | } |
| 176 | ccb->next = adapter->free_ccbs; |
| 177 | ccb->next_all = adapter->all_ccbs; |
| 178 | adapter->free_ccbs = ccb; |
| 179 | adapter->all_ccbs = ccb; |
| 180 | adapter->alloc_ccbs++; |
| 181 | ccb++; |
| 182 | offset += sizeof(struct blogic_ccb); |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | |
| 187 | /* |
| 188 | blogic_create_initccbs allocates the initial CCBs for Host Adapter. |
| 189 | */ |
| 190 | |
| 191 | static bool __init blogic_create_initccbs(struct blogic_adapter *adapter) |
| 192 | { |
| 193 | int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb); |
| 194 | void *blk_pointer; |
| 195 | dma_addr_t blkp; |
| 196 | |
| 197 | while (adapter->alloc_ccbs < adapter->initccbs) { |
| 198 | blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev, |
| 199 | blk_size, &blkp, GFP_KERNEL); |
| 200 | if (blk_pointer == NULL) { |
| 201 | blogic_err("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n", |
| 202 | adapter); |
| 203 | return false; |
| 204 | } |
| 205 | blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp); |
| 206 | } |
| 207 | return true; |
| 208 | } |
| 209 | |
| 210 | |
| 211 | /* |
| 212 | blogic_destroy_ccbs deallocates the CCBs for Host Adapter. |
| 213 | */ |
| 214 | |
| 215 | static void blogic_destroy_ccbs(struct blogic_adapter *adapter) |
| 216 | { |
| 217 | struct blogic_ccb *next_ccb = adapter->all_ccbs, *ccb, *lastccb = NULL; |
| 218 | adapter->all_ccbs = NULL; |
| 219 | adapter->free_ccbs = NULL; |
| 220 | while ((ccb = next_ccb) != NULL) { |
| 221 | next_ccb = ccb->next_all; |
| 222 | if (ccb->allocgrp_head) { |
| 223 | if (lastccb) |
| 224 | dma_free_coherent(&adapter->pci_device->dev, |
| 225 | lastccb->allocgrp_size, lastccb, |
| 226 | lastccb->allocgrp_head); |
| 227 | lastccb = ccb; |
| 228 | } |
| 229 | } |
| 230 | if (lastccb) |
| 231 | dma_free_coherent(&adapter->pci_device->dev, |
| 232 | lastccb->allocgrp_size, lastccb, |
| 233 | lastccb->allocgrp_head); |
| 234 | } |
| 235 | |
| 236 | |
| 237 | /* |
| 238 | blogic_create_addlccbs allocates Additional CCBs for Host Adapter. If |
| 239 | allocation fails and there are no remaining CCBs available, the Driver Queue |
| 240 | Depth is decreased to a known safe value to avoid potential deadlocks when |
| 241 | multiple host adapters share the same IRQ Channel. |
| 242 | */ |
| 243 | |
| 244 | static void blogic_create_addlccbs(struct blogic_adapter *adapter, |
| 245 | int addl_ccbs, bool print_success) |
| 246 | { |
| 247 | int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb); |
| 248 | int prev_alloc = adapter->alloc_ccbs; |
| 249 | void *blk_pointer; |
| 250 | dma_addr_t blkp; |
| 251 | if (addl_ccbs <= 0) |
| 252 | return; |
| 253 | while (adapter->alloc_ccbs - prev_alloc < addl_ccbs) { |
| 254 | blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev, |
| 255 | blk_size, &blkp, GFP_KERNEL); |
| 256 | if (blk_pointer == NULL) |
| 257 | break; |
| 258 | blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp); |
| 259 | } |
| 260 | if (adapter->alloc_ccbs > prev_alloc) { |
| 261 | if (print_success) |
| 262 | blogic_notice("Allocated %d additional CCBs (total now %d)\n", adapter, adapter->alloc_ccbs - prev_alloc, adapter->alloc_ccbs); |
| 263 | return; |
| 264 | } |
| 265 | blogic_notice("Failed to allocate additional CCBs\n", adapter); |
| 266 | if (adapter->drvr_qdepth > adapter->alloc_ccbs - adapter->tgt_count) { |
| 267 | adapter->drvr_qdepth = adapter->alloc_ccbs - adapter->tgt_count; |
| 268 | adapter->scsi_host->can_queue = adapter->drvr_qdepth; |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | /* |
| 273 | blogic_alloc_ccb allocates a CCB from Host Adapter's free list, |
| 274 | allocating more memory from the Kernel if necessary. The Host Adapter's |
| 275 | Lock should already have been acquired by the caller. |
| 276 | */ |
| 277 | |
| 278 | static struct blogic_ccb *blogic_alloc_ccb(struct blogic_adapter *adapter) |
| 279 | { |
| 280 | static unsigned long serial; |
| 281 | struct blogic_ccb *ccb; |
| 282 | ccb = adapter->free_ccbs; |
| 283 | if (ccb != NULL) { |
| 284 | ccb->serial = ++serial; |
| 285 | adapter->free_ccbs = ccb->next; |
| 286 | ccb->next = NULL; |
| 287 | if (adapter->free_ccbs == NULL) |
| 288 | blogic_create_addlccbs(adapter, adapter->inc_ccbs, |
| 289 | true); |
| 290 | return ccb; |
| 291 | } |
| 292 | blogic_create_addlccbs(adapter, adapter->inc_ccbs, true); |
| 293 | ccb = adapter->free_ccbs; |
| 294 | if (ccb == NULL) |
| 295 | return NULL; |
| 296 | ccb->serial = ++serial; |
| 297 | adapter->free_ccbs = ccb->next; |
| 298 | ccb->next = NULL; |
| 299 | return ccb; |
| 300 | } |
| 301 | |
| 302 | |
| 303 | /* |
| 304 | blogic_dealloc_ccb deallocates a CCB, returning it to the Host Adapter's |
| 305 | free list. The Host Adapter's Lock should already have been acquired by the |
| 306 | caller. |
| 307 | */ |
| 308 | |
| 309 | static void blogic_dealloc_ccb(struct blogic_ccb *ccb, int dma_unmap) |
| 310 | { |
| 311 | struct blogic_adapter *adapter = ccb->adapter; |
| 312 | |
| 313 | if (ccb->command != NULL) |
| 314 | scsi_dma_unmap(ccb->command); |
| 315 | if (dma_unmap) |
| 316 | dma_unmap_single(&adapter->pci_device->dev, ccb->sensedata, |
| 317 | ccb->sense_datalen, DMA_FROM_DEVICE); |
| 318 | |
| 319 | ccb->command = NULL; |
| 320 | ccb->status = BLOGIC_CCB_FREE; |
| 321 | ccb->next = adapter->free_ccbs; |
| 322 | adapter->free_ccbs = ccb; |
| 323 | } |
| 324 | |
| 325 | |
| 326 | /* |
| 327 | blogic_cmd sends the command opcode to adapter, optionally |
| 328 | providing paramlen bytes of param and receiving at most |
| 329 | replylen bytes of reply; any excess reply data is received but |
| 330 | discarded. |
| 331 | |
| 332 | On success, this function returns the number of reply bytes read from |
| 333 | the Host Adapter (including any discarded data); on failure, it returns |
| 334 | -1 if the command was invalid, or -2 if a timeout occurred. |
| 335 | |
| 336 | blogic_cmd is called exclusively during host adapter detection and |
| 337 | initialization, so performance and latency are not critical, and exclusive |
| 338 | access to the Host Adapter hardware is assumed. Once the host adapter and |
| 339 | driver are initialized, the only Host Adapter command that is issued is the |
| 340 | single byte Execute Mailbox Command operation code, which does not require |
| 341 | waiting for the Host Adapter Ready bit to be set in the Status Register. |
| 342 | */ |
| 343 | |
| 344 | static int blogic_cmd(struct blogic_adapter *adapter, enum blogic_opcode opcode, |
| 345 | void *param, int paramlen, void *reply, int replylen) |
| 346 | { |
| 347 | unsigned char *param_p = (unsigned char *) param; |
| 348 | unsigned char *reply_p = (unsigned char *) reply; |
| 349 | union blogic_stat_reg statusreg; |
| 350 | union blogic_int_reg intreg; |
| 351 | unsigned long processor_flag = 0; |
| 352 | int reply_b = 0, result; |
| 353 | long timeout; |
| 354 | /* |
| 355 | Clear out the Reply Data if provided. |
| 356 | */ |
| 357 | if (replylen > 0) |
| 358 | memset(reply, 0, replylen); |
| 359 | /* |
| 360 | If the IRQ Channel has not yet been acquired, then interrupts |
| 361 | must be disabled while issuing host adapter commands since a |
| 362 | Command Complete interrupt could occur if the IRQ Channel was |
| 363 | previously enabled by another BusLogic Host Adapter or another |
| 364 | driver sharing the same IRQ Channel. |
| 365 | */ |
| 366 | if (!adapter->irq_acquired) |
| 367 | local_irq_save(processor_flag); |
| 368 | /* |
| 369 | Wait for the Host Adapter Ready bit to be set and the |
| 370 | Command/Parameter Register Busy bit to be reset in the Status |
| 371 | Register. |
| 372 | */ |
| 373 | timeout = 10000; |
| 374 | while (--timeout >= 0) { |
| 375 | statusreg.all = blogic_rdstatus(adapter); |
| 376 | if (statusreg.sr.adapter_ready && !statusreg.sr.cmd_param_busy) |
| 377 | break; |
| 378 | udelay(100); |
| 379 | } |
| 380 | if (timeout < 0) { |
| 381 | blogic_cmd_failure_reason = |
| 382 | "Timeout waiting for Host Adapter Ready"; |
| 383 | result = -2; |
| 384 | goto done; |
| 385 | } |
| 386 | /* |
| 387 | Write the opcode to the Command/Parameter Register. |
| 388 | */ |
| 389 | adapter->adapter_cmd_complete = false; |
| 390 | blogic_setcmdparam(adapter, opcode); |
| 391 | /* |
| 392 | Write any additional Parameter Bytes. |
| 393 | */ |
| 394 | timeout = 10000; |
| 395 | while (paramlen > 0 && --timeout >= 0) { |
| 396 | /* |
| 397 | Wait 100 microseconds to give the Host Adapter enough |
| 398 | time to determine whether the last value written to the |
| 399 | Command/Parameter Register was valid or not. If the |
| 400 | Command Complete bit is set in the Interrupt Register, |
| 401 | then the Command Invalid bit in the Status Register will |
| 402 | be reset if the Operation Code or Parameter was valid |
| 403 | and the command has completed, or set if the Operation |
| 404 | Code or Parameter was invalid. If the Data In Register |
| 405 | Ready bit is set in the Status Register, then the |
| 406 | Operation Code was valid, and data is waiting to be read |
| 407 | back from the Host Adapter. Otherwise, wait for the |
| 408 | Command/Parameter Register Busy bit in the Status |
| 409 | Register to be reset. |
| 410 | */ |
| 411 | udelay(100); |
| 412 | intreg.all = blogic_rdint(adapter); |
| 413 | statusreg.all = blogic_rdstatus(adapter); |
| 414 | if (intreg.ir.cmd_complete) |
| 415 | break; |
| 416 | if (adapter->adapter_cmd_complete) |
| 417 | break; |
| 418 | if (statusreg.sr.datain_ready) |
| 419 | break; |
| 420 | if (statusreg.sr.cmd_param_busy) |
| 421 | continue; |
| 422 | blogic_setcmdparam(adapter, *param_p++); |
| 423 | paramlen--; |
| 424 | } |
| 425 | if (timeout < 0) { |
| 426 | blogic_cmd_failure_reason = |
| 427 | "Timeout waiting for Parameter Acceptance"; |
| 428 | result = -2; |
| 429 | goto done; |
| 430 | } |
| 431 | /* |
| 432 | The Modify I/O Address command does not cause a Command Complete |
| 433 | Interrupt. |
| 434 | */ |
| 435 | if (opcode == BLOGIC_MOD_IOADDR) { |
| 436 | statusreg.all = blogic_rdstatus(adapter); |
| 437 | if (statusreg.sr.cmd_invalid) { |
| 438 | blogic_cmd_failure_reason = |
| 439 | "Modify I/O Address Invalid"; |
| 440 | result = -1; |
| 441 | goto done; |
| 442 | } |
| 443 | if (blogic_global_options.trace_config) |
| 444 | blogic_notice("blogic_cmd(%02X) Status = %02X: (Modify I/O Address)\n", adapter, opcode, statusreg.all); |
| 445 | result = 0; |
| 446 | goto done; |
| 447 | } |
| 448 | /* |
| 449 | Select an appropriate timeout value for awaiting command completion. |
| 450 | */ |
| 451 | switch (opcode) { |
| 452 | case BLOGIC_INQ_DEV0TO7: |
| 453 | case BLOGIC_INQ_DEV8TO15: |
| 454 | case BLOGIC_INQ_DEV: |
| 455 | /* Approximately 60 seconds. */ |
| 456 | timeout = 60 * 10000; |
| 457 | break; |
| 458 | default: |
| 459 | /* Approximately 1 second. */ |
| 460 | timeout = 10000; |
| 461 | break; |
| 462 | } |
| 463 | /* |
| 464 | Receive any Reply Bytes, waiting for either the Command |
| 465 | Complete bit to be set in the Interrupt Register, or for the |
| 466 | Interrupt Handler to set the Host Adapter Command Completed |
| 467 | bit in the Host Adapter structure. |
| 468 | */ |
| 469 | while (--timeout >= 0) { |
| 470 | intreg.all = blogic_rdint(adapter); |
| 471 | statusreg.all = blogic_rdstatus(adapter); |
| 472 | if (intreg.ir.cmd_complete) |
| 473 | break; |
| 474 | if (adapter->adapter_cmd_complete) |
| 475 | break; |
| 476 | if (statusreg.sr.datain_ready) { |
| 477 | if (++reply_b <= replylen) |
| 478 | *reply_p++ = blogic_rddatain(adapter); |
| 479 | else |
| 480 | blogic_rddatain(adapter); |
| 481 | } |
| 482 | if (opcode == BLOGIC_FETCH_LOCALRAM && |
| 483 | statusreg.sr.adapter_ready) |
| 484 | break; |
| 485 | udelay(100); |
| 486 | } |
| 487 | if (timeout < 0) { |
| 488 | blogic_cmd_failure_reason = |
| 489 | "Timeout waiting for Command Complete"; |
| 490 | result = -2; |
| 491 | goto done; |
| 492 | } |
| 493 | /* |
| 494 | Clear any pending Command Complete Interrupt. |
| 495 | */ |
| 496 | blogic_intreset(adapter); |
| 497 | /* |
| 498 | Provide tracing information if requested. |
| 499 | */ |
| 500 | if (blogic_global_options.trace_config) { |
| 501 | int i; |
| 502 | blogic_notice("blogic_cmd(%02X) Status = %02X: %2d ==> %2d:", |
| 503 | adapter, opcode, statusreg.all, replylen, |
| 504 | reply_b); |
| 505 | if (replylen > reply_b) |
| 506 | replylen = reply_b; |
| 507 | for (i = 0; i < replylen; i++) |
| 508 | blogic_notice(" %02X", adapter, |
| 509 | ((unsigned char *) reply)[i]); |
| 510 | blogic_notice("\n", adapter); |
| 511 | } |
| 512 | /* |
| 513 | Process Command Invalid conditions. |
| 514 | */ |
| 515 | if (statusreg.sr.cmd_invalid) { |
| 516 | /* |
| 517 | Some early BusLogic Host Adapters may not recover |
| 518 | properly from a Command Invalid condition, so if this |
| 519 | appears to be the case, a Soft Reset is issued to the |
| 520 | Host Adapter. Potentially invalid commands are never |
| 521 | attempted after Mailbox Initialization is performed, |
| 522 | so there should be no Host Adapter state lost by a |
| 523 | Soft Reset in response to a Command Invalid condition. |
| 524 | */ |
| 525 | udelay(1000); |
| 526 | statusreg.all = blogic_rdstatus(adapter); |
| 527 | if (statusreg.sr.cmd_invalid || statusreg.sr.rsvd || |
| 528 | statusreg.sr.datain_ready || |
| 529 | statusreg.sr.cmd_param_busy || |
| 530 | !statusreg.sr.adapter_ready || |
| 531 | !statusreg.sr.init_reqd || |
| 532 | statusreg.sr.diag_active || |
| 533 | statusreg.sr.diag_failed) { |
| 534 | blogic_softreset(adapter); |
| 535 | udelay(1000); |
| 536 | } |
| 537 | blogic_cmd_failure_reason = "Command Invalid"; |
| 538 | result = -1; |
| 539 | goto done; |
| 540 | } |
| 541 | /* |
| 542 | Handle Excess Parameters Supplied conditions. |
| 543 | */ |
| 544 | if (paramlen > 0) { |
| 545 | blogic_cmd_failure_reason = "Excess Parameters Supplied"; |
| 546 | result = -1; |
| 547 | goto done; |
| 548 | } |
| 549 | /* |
| 550 | Indicate the command completed successfully. |
| 551 | */ |
| 552 | blogic_cmd_failure_reason = NULL; |
| 553 | result = reply_b; |
| 554 | /* |
| 555 | Restore the interrupt status if necessary and return. |
| 556 | */ |
| 557 | done: |
| 558 | if (!adapter->irq_acquired) |
| 559 | local_irq_restore(processor_flag); |
| 560 | return result; |
| 561 | } |
| 562 | |
| 563 | |
| 564 | /* |
| 565 | blogic_sort_probeinfo sorts a section of blogic_probeinfo_list in order |
| 566 | of increasing PCI Bus and Device Number. |
| 567 | */ |
| 568 | |
| 569 | static void __init blogic_sort_probeinfo(struct blogic_probeinfo |
| 570 | *probeinfo_list, int probeinfo_cnt) |
| 571 | { |
| 572 | int last_exchange = probeinfo_cnt - 1, bound, j; |
| 573 | |
| 574 | while (last_exchange > 0) { |
| 575 | bound = last_exchange; |
| 576 | last_exchange = 0; |
| 577 | for (j = 0; j < bound; j++) { |
| 578 | struct blogic_probeinfo *probeinfo1 = |
| 579 | &probeinfo_list[j]; |
| 580 | struct blogic_probeinfo *probeinfo2 = |
| 581 | &probeinfo_list[j + 1]; |
| 582 | if (probeinfo1->bus > probeinfo2->bus || |
| 583 | (probeinfo1->bus == probeinfo2->bus && |
| 584 | (probeinfo1->dev > probeinfo2->dev))) { |
| 585 | struct blogic_probeinfo tmp_probeinfo; |
| 586 | |
| 587 | memcpy(&tmp_probeinfo, probeinfo1, |
| 588 | sizeof(struct blogic_probeinfo)); |
| 589 | memcpy(probeinfo1, probeinfo2, |
| 590 | sizeof(struct blogic_probeinfo)); |
| 591 | memcpy(probeinfo2, &tmp_probeinfo, |
| 592 | sizeof(struct blogic_probeinfo)); |
| 593 | last_exchange = j; |
| 594 | } |
| 595 | } |
| 596 | } |
| 597 | } |
| 598 | |
| 599 | |
| 600 | /* |
| 601 | blogic_init_mm_probeinfo initializes the list of I/O Address |
| 602 | and Bus Probe Information to be checked for potential BusLogic MultiMaster |
| 603 | SCSI Host Adapters by interrogating the PCI Configuration Space on PCI |
| 604 | machines as well as from the list of standard BusLogic MultiMaster ISA |
| 605 | I/O Addresses. It returns the number of PCI MultiMaster Host Adapters found. |
| 606 | */ |
| 607 | |
| 608 | static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter) |
| 609 | { |
| 610 | struct blogic_probeinfo *pr_probeinfo = |
| 611 | &blogic_probeinfo_list[blogic_probeinfo_count]; |
| 612 | int nonpr_mmindex = blogic_probeinfo_count + 1; |
| 613 | int nonpr_mmcount = 0, mmcount = 0; |
| 614 | bool force_scan_order = false; |
| 615 | bool force_scan_order_checked = false; |
| 616 | struct pci_dev *pci_device = NULL; |
| 617 | int i; |
| 618 | if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS) |
| 619 | return 0; |
| 620 | blogic_probeinfo_count++; |
| 621 | /* |
| 622 | Iterate over the MultiMaster PCI Host Adapters. For each |
| 623 | enumerated host adapter, determine whether its ISA Compatible |
| 624 | I/O Port is enabled and if so, whether it is assigned the |
| 625 | Primary I/O Address. A host adapter that is assigned the |
| 626 | Primary I/O Address will always be the preferred boot device. |
| 627 | The MultiMaster BIOS will first recognize a host adapter at |
| 628 | the Primary I/O Address, then any other PCI host adapters, |
| 629 | and finally any host adapters located at the remaining |
| 630 | standard ISA I/O Addresses. When a PCI host adapter is found |
| 631 | with its ISA Compatible I/O Port enabled, a command is issued |
| 632 | to disable the ISA Compatible I/O Port, and it is noted that the |
| 633 | particular standard ISA I/O Address need not be probed. |
| 634 | */ |
| 635 | pr_probeinfo->io_addr = 0; |
| 636 | while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, |
| 637 | PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER, |
| 638 | pci_device)) != NULL) { |
| 639 | struct blogic_adapter *host_adapter = adapter; |
| 640 | struct blogic_adapter_info adapter_info; |
| 641 | enum blogic_isa_ioport mod_ioaddr_req; |
| 642 | unsigned char bus; |
| 643 | unsigned char device; |
| 644 | unsigned int irq_ch; |
| 645 | unsigned long base_addr0; |
| 646 | unsigned long base_addr1; |
| 647 | unsigned long io_addr; |
| 648 | unsigned long pci_addr; |
| 649 | |
| 650 | if (pci_enable_device(pci_device)) |
| 651 | continue; |
| 652 | |
| 653 | if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32))) |
| 654 | continue; |
| 655 | |
| 656 | bus = pci_device->bus->number; |
| 657 | device = pci_device->devfn >> 3; |
| 658 | irq_ch = pci_device->irq; |
| 659 | io_addr = base_addr0 = pci_resource_start(pci_device, 0); |
| 660 | pci_addr = base_addr1 = pci_resource_start(pci_device, 1); |
| 661 | |
| 662 | if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) { |
| 663 | blogic_err("BusLogic: Base Address0 0x%lX not I/O for MultiMaster Host Adapter\n", NULL, base_addr0); |
| 664 | blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr); |
| 665 | continue; |
| 666 | } |
| 667 | if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) { |
| 668 | blogic_err("BusLogic: Base Address1 0x%lX not Memory for MultiMaster Host Adapter\n", NULL, base_addr1); |
| 669 | blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr); |
| 670 | continue; |
| 671 | } |
| 672 | if (irq_ch == 0) { |
| 673 | blogic_err("BusLogic: IRQ Channel %d invalid for MultiMaster Host Adapter\n", NULL, irq_ch); |
| 674 | blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr); |
| 675 | continue; |
| 676 | } |
| 677 | if (blogic_global_options.trace_probe) { |
| 678 | blogic_notice("BusLogic: PCI MultiMaster Host Adapter detected at\n", NULL); |
| 679 | blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr); |
| 680 | } |
| 681 | /* |
| 682 | Issue the Inquire PCI Host Adapter Information command to determine |
| 683 | the ISA Compatible I/O Port. If the ISA Compatible I/O Port is |
| 684 | known and enabled, note that the particular Standard ISA I/O |
| 685 | Address should not be probed. |
| 686 | */ |
| 687 | host_adapter->io_addr = io_addr; |
| 688 | blogic_intreset(host_adapter); |
| 689 | if (blogic_cmd(host_adapter, BLOGIC_INQ_PCI_INFO, NULL, 0, |
| 690 | &adapter_info, sizeof(adapter_info)) != |
| 691 | sizeof(adapter_info)) |
| 692 | adapter_info.isa_port = BLOGIC_IO_DISABLE; |
| 693 | /* |
| 694 | Issue the Modify I/O Address command to disable the |
| 695 | ISA Compatible I/O Port. On PCI Host Adapters, the |
| 696 | Modify I/O Address command allows modification of the |
| 697 | ISA compatible I/O Address that the Host Adapter |
| 698 | responds to; it does not affect the PCI compliant |
| 699 | I/O Address assigned at system initialization. |
| 700 | */ |
| 701 | mod_ioaddr_req = BLOGIC_IO_DISABLE; |
| 702 | blogic_cmd(host_adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req, |
| 703 | sizeof(mod_ioaddr_req), NULL, 0); |
| 704 | /* |
| 705 | For the first MultiMaster Host Adapter enumerated, |
| 706 | issue the Fetch Host Adapter Local RAM command to read |
| 707 | byte 45 of the AutoSCSI area, for the setting of the |
| 708 | "Use Bus And Device # For PCI Scanning Seq." option. |
| 709 | Issue the Inquire Board ID command since this option is |
| 710 | only valid for the BT-948/958/958D. |
| 711 | */ |
| 712 | if (!force_scan_order_checked) { |
| 713 | struct blogic_fetch_localram fetch_localram; |
| 714 | struct blogic_autoscsi_byte45 autoscsi_byte45; |
| 715 | struct blogic_board_id id; |
| 716 | |
| 717 | fetch_localram.offset = BLOGIC_AUTOSCSI_BASE + 45; |
| 718 | fetch_localram.count = sizeof(autoscsi_byte45); |
| 719 | blogic_cmd(host_adapter, BLOGIC_FETCH_LOCALRAM, |
| 720 | &fetch_localram, sizeof(fetch_localram), |
| 721 | &autoscsi_byte45, |
| 722 | sizeof(autoscsi_byte45)); |
| 723 | blogic_cmd(host_adapter, BLOGIC_GET_BOARD_ID, NULL, 0, |
| 724 | &id, sizeof(id)); |
| 725 | if (id.fw_ver_digit1 == '5') |
| 726 | force_scan_order = |
| 727 | autoscsi_byte45.force_scan_order; |
| 728 | force_scan_order_checked = true; |
| 729 | } |
| 730 | /* |
| 731 | Determine whether this MultiMaster Host Adapter has its |
| 732 | ISA Compatible I/O Port enabled and is assigned the |
| 733 | Primary I/O Address. If it does, then it is the Primary |
| 734 | MultiMaster Host Adapter and must be recognized first. |
| 735 | If it does not, then it is added to the list for probing |
| 736 | after any Primary MultiMaster Host Adapter is probed. |
| 737 | */ |
| 738 | if (adapter_info.isa_port == BLOGIC_IO_330) { |
| 739 | pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER; |
| 740 | pr_probeinfo->adapter_bus_type = BLOGIC_PCI_BUS; |
| 741 | pr_probeinfo->io_addr = io_addr; |
| 742 | pr_probeinfo->pci_addr = pci_addr; |
| 743 | pr_probeinfo->bus = bus; |
| 744 | pr_probeinfo->dev = device; |
| 745 | pr_probeinfo->irq_ch = irq_ch; |
| 746 | pr_probeinfo->pci_device = pci_dev_get(pci_device); |
| 747 | mmcount++; |
| 748 | } else if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) { |
| 749 | struct blogic_probeinfo *probeinfo = |
| 750 | &blogic_probeinfo_list[blogic_probeinfo_count++]; |
| 751 | probeinfo->adapter_type = BLOGIC_MULTIMASTER; |
| 752 | probeinfo->adapter_bus_type = BLOGIC_PCI_BUS; |
| 753 | probeinfo->io_addr = io_addr; |
| 754 | probeinfo->pci_addr = pci_addr; |
| 755 | probeinfo->bus = bus; |
| 756 | probeinfo->dev = device; |
| 757 | probeinfo->irq_ch = irq_ch; |
| 758 | probeinfo->pci_device = pci_dev_get(pci_device); |
| 759 | nonpr_mmcount++; |
| 760 | mmcount++; |
| 761 | } else |
| 762 | blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL); |
| 763 | } |
| 764 | /* |
| 765 | If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq." |
| 766 | option is ON for the first enumerated MultiMaster Host Adapter, |
| 767 | and if that host adapter is a BT-948/958/958D, then the |
| 768 | MultiMaster BIOS will recognize MultiMaster Host Adapters in |
| 769 | the order of increasing PCI Bus and Device Number. In that case, |
| 770 | sort the probe information into the same order the BIOS uses. |
| 771 | If this option is OFF, then the MultiMaster BIOS will recognize |
| 772 | MultiMaster Host Adapters in the order they are enumerated by |
| 773 | the PCI BIOS, and hence no sorting is necessary. |
| 774 | */ |
| 775 | if (force_scan_order) |
| 776 | blogic_sort_probeinfo(&blogic_probeinfo_list[nonpr_mmindex], |
| 777 | nonpr_mmcount); |
| 778 | /* |
| 779 | Iterate over the older non-compliant MultiMaster PCI Host Adapters, |
| 780 | noting the PCI bus location and assigned IRQ Channel. |
| 781 | */ |
| 782 | pci_device = NULL; |
| 783 | while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, |
| 784 | PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC, |
| 785 | pci_device)) != NULL) { |
| 786 | unsigned char bus; |
| 787 | unsigned char device; |
| 788 | unsigned int irq_ch; |
| 789 | unsigned long io_addr; |
| 790 | |
| 791 | if (pci_enable_device(pci_device)) |
| 792 | continue; |
| 793 | |
| 794 | if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32))) |
| 795 | continue; |
| 796 | |
| 797 | bus = pci_device->bus->number; |
| 798 | device = pci_device->devfn >> 3; |
| 799 | irq_ch = pci_device->irq; |
| 800 | io_addr = pci_resource_start(pci_device, 0); |
| 801 | |
| 802 | if (io_addr == 0 || irq_ch == 0) |
| 803 | continue; |
| 804 | for (i = 0; i < blogic_probeinfo_count; i++) { |
| 805 | struct blogic_probeinfo *probeinfo = |
| 806 | &blogic_probeinfo_list[i]; |
| 807 | if (probeinfo->io_addr == io_addr && |
| 808 | probeinfo->adapter_type == BLOGIC_MULTIMASTER) { |
| 809 | probeinfo->adapter_bus_type = BLOGIC_PCI_BUS; |
| 810 | probeinfo->pci_addr = 0; |
| 811 | probeinfo->bus = bus; |
| 812 | probeinfo->dev = device; |
| 813 | probeinfo->irq_ch = irq_ch; |
| 814 | probeinfo->pci_device = pci_dev_get(pci_device); |
| 815 | break; |
| 816 | } |
| 817 | } |
| 818 | } |
| 819 | return mmcount; |
| 820 | } |
| 821 | |
| 822 | |
| 823 | /* |
| 824 | blogic_init_fp_probeinfo initializes the list of I/O Address |
| 825 | and Bus Probe Information to be checked for potential BusLogic FlashPoint |
| 826 | Host Adapters by interrogating the PCI Configuration Space. It returns the |
| 827 | number of FlashPoint Host Adapters found. |
| 828 | */ |
| 829 | |
| 830 | static int __init blogic_init_fp_probeinfo(struct blogic_adapter *adapter) |
| 831 | { |
| 832 | int fpindex = blogic_probeinfo_count, fpcount = 0; |
| 833 | struct pci_dev *pci_device = NULL; |
| 834 | /* |
| 835 | Interrogate PCI Configuration Space for any FlashPoint Host Adapters. |
| 836 | */ |
| 837 | while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, |
| 838 | PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT, |
| 839 | pci_device)) != NULL) { |
| 840 | unsigned char bus; |
| 841 | unsigned char device; |
| 842 | unsigned int irq_ch; |
| 843 | unsigned long base_addr0; |
| 844 | unsigned long base_addr1; |
| 845 | unsigned long io_addr; |
| 846 | unsigned long pci_addr; |
| 847 | |
| 848 | if (pci_enable_device(pci_device)) |
| 849 | continue; |
| 850 | |
| 851 | if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32))) |
| 852 | continue; |
| 853 | |
| 854 | bus = pci_device->bus->number; |
| 855 | device = pci_device->devfn >> 3; |
| 856 | irq_ch = pci_device->irq; |
| 857 | io_addr = base_addr0 = pci_resource_start(pci_device, 0); |
| 858 | pci_addr = base_addr1 = pci_resource_start(pci_device, 1); |
| 859 | #ifdef CONFIG_SCSI_FLASHPOINT |
| 860 | if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) { |
| 861 | blogic_err("BusLogic: Base Address0 0x%lX not I/O for FlashPoint Host Adapter\n", NULL, base_addr0); |
| 862 | blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr); |
| 863 | continue; |
| 864 | } |
| 865 | if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) { |
| 866 | blogic_err("BusLogic: Base Address1 0x%lX not Memory for FlashPoint Host Adapter\n", NULL, base_addr1); |
| 867 | blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr); |
| 868 | continue; |
| 869 | } |
| 870 | if (irq_ch == 0) { |
| 871 | blogic_err("BusLogic: IRQ Channel %d invalid for FlashPoint Host Adapter\n", NULL, irq_ch); |
| 872 | blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr); |
| 873 | continue; |
| 874 | } |
| 875 | if (blogic_global_options.trace_probe) { |
| 876 | blogic_notice("BusLogic: FlashPoint Host Adapter detected at\n", NULL); |
| 877 | blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr); |
| 878 | } |
| 879 | if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) { |
| 880 | struct blogic_probeinfo *probeinfo = |
| 881 | &blogic_probeinfo_list[blogic_probeinfo_count++]; |
| 882 | probeinfo->adapter_type = BLOGIC_FLASHPOINT; |
| 883 | probeinfo->adapter_bus_type = BLOGIC_PCI_BUS; |
| 884 | probeinfo->io_addr = io_addr; |
| 885 | probeinfo->pci_addr = pci_addr; |
| 886 | probeinfo->bus = bus; |
| 887 | probeinfo->dev = device; |
| 888 | probeinfo->irq_ch = irq_ch; |
| 889 | probeinfo->pci_device = pci_dev_get(pci_device); |
| 890 | fpcount++; |
| 891 | } else |
| 892 | blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL); |
| 893 | #else |
| 894 | blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", NULL, bus, device); |
| 895 | blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, irq %d, but FlashPoint\n", NULL, io_addr, pci_addr, irq_ch); |
| 896 | blogic_err("BusLogic: support was omitted in this kernel configuration.\n", NULL); |
| 897 | #endif |
| 898 | } |
| 899 | /* |
| 900 | The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of |
| 901 | increasing PCI Bus and Device Number, so sort the probe information into |
| 902 | the same order the BIOS uses. |
| 903 | */ |
| 904 | blogic_sort_probeinfo(&blogic_probeinfo_list[fpindex], fpcount); |
| 905 | return fpcount; |
| 906 | } |
| 907 | |
| 908 | |
| 909 | /* |
| 910 | blogic_init_probeinfo_list initializes the list of I/O Address and Bus |
| 911 | Probe Information to be checked for potential BusLogic SCSI Host Adapters by |
| 912 | interrogating the PCI Configuration Space on PCI machines as well as from the |
| 913 | list of standard BusLogic MultiMaster ISA I/O Addresses. By default, if both |
| 914 | FlashPoint and PCI MultiMaster Host Adapters are present, this driver will |
| 915 | probe for FlashPoint Host Adapters first unless the BIOS primary disk is |
| 916 | controlled by the first PCI MultiMaster Host Adapter, in which case |
| 917 | MultiMaster Host Adapters will be probed first. The BusLogic Driver Options |
| 918 | specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force |
| 919 | a particular probe order. |
| 920 | */ |
| 921 | |
| 922 | static void __init blogic_init_probeinfo_list(struct blogic_adapter *adapter) |
| 923 | { |
| 924 | /* |
| 925 | If a PCI BIOS is present, interrogate it for MultiMaster and |
| 926 | FlashPoint Host Adapters; otherwise, default to the standard |
| 927 | ISA MultiMaster probe. |
| 928 | */ |
| 929 | if (!blogic_probe_options.noprobe_pci) { |
| 930 | if (blogic_probe_options.multimaster_first) { |
| 931 | blogic_init_mm_probeinfo(adapter); |
| 932 | blogic_init_fp_probeinfo(adapter); |
| 933 | } else if (blogic_probe_options.flashpoint_first) { |
| 934 | blogic_init_fp_probeinfo(adapter); |
| 935 | blogic_init_mm_probeinfo(adapter); |
| 936 | } else { |
| 937 | int fpcount = blogic_init_fp_probeinfo(adapter); |
| 938 | int mmcount = blogic_init_mm_probeinfo(adapter); |
| 939 | if (fpcount > 0 && mmcount > 0) { |
| 940 | struct blogic_probeinfo *probeinfo = |
| 941 | &blogic_probeinfo_list[fpcount]; |
| 942 | struct blogic_adapter *myadapter = adapter; |
| 943 | struct blogic_fetch_localram fetch_localram; |
| 944 | struct blogic_bios_drvmap d0_mapbyte; |
| 945 | |
| 946 | while (probeinfo->adapter_bus_type != |
| 947 | BLOGIC_PCI_BUS) |
| 948 | probeinfo++; |
| 949 | myadapter->io_addr = probeinfo->io_addr; |
| 950 | fetch_localram.offset = |
| 951 | BLOGIC_BIOS_BASE + BLOGIC_BIOS_DRVMAP; |
| 952 | fetch_localram.count = sizeof(d0_mapbyte); |
| 953 | blogic_cmd(myadapter, BLOGIC_FETCH_LOCALRAM, |
| 954 | &fetch_localram, |
| 955 | sizeof(fetch_localram), |
| 956 | &d0_mapbyte, |
| 957 | sizeof(d0_mapbyte)); |
| 958 | /* |
| 959 | If the Map Byte for BIOS Drive 0 indicates |
| 960 | that BIOS Drive 0 is controlled by this |
| 961 | PCI MultiMaster Host Adapter, then reverse |
| 962 | the probe order so that MultiMaster Host |
| 963 | Adapters are probed before FlashPoint Host |
| 964 | Adapters. |
| 965 | */ |
| 966 | if (d0_mapbyte.diskgeom != BLOGIC_BIOS_NODISK) { |
| 967 | struct blogic_probeinfo saved_probeinfo[BLOGIC_MAX_ADAPTERS]; |
| 968 | int mmcount = blogic_probeinfo_count - fpcount; |
| 969 | |
| 970 | memcpy(saved_probeinfo, |
| 971 | blogic_probeinfo_list, |
| 972 | blogic_probeinfo_count * sizeof(struct blogic_probeinfo)); |
| 973 | memcpy(&blogic_probeinfo_list[0], |
| 974 | &saved_probeinfo[fpcount], |
| 975 | mmcount * sizeof(struct blogic_probeinfo)); |
| 976 | memcpy(&blogic_probeinfo_list[mmcount], |
| 977 | &saved_probeinfo[0], |
| 978 | fpcount * sizeof(struct blogic_probeinfo)); |
| 979 | } |
| 980 | } |
| 981 | } |
| 982 | } |
| 983 | } |
| 984 | |
| 985 | |
| 986 | /* |
| 987 | blogic_failure prints a standardized error message, and then returns false. |
| 988 | */ |
| 989 | |
| 990 | static bool blogic_failure(struct blogic_adapter *adapter, char *msg) |
| 991 | { |
| 992 | blogic_announce_drvr(adapter); |
| 993 | if (adapter->adapter_bus_type == BLOGIC_PCI_BUS) { |
| 994 | blogic_err("While configuring BusLogic PCI Host Adapter at\n", |
| 995 | adapter); |
| 996 | blogic_err("Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX:\n", adapter, adapter->bus, adapter->dev, adapter->io_addr, adapter->pci_addr); |
| 997 | } else |
| 998 | blogic_err("While configuring BusLogic Host Adapter at I/O Address 0x%lX:\n", adapter, adapter->io_addr); |
| 999 | blogic_err("%s FAILED - DETACHING\n", adapter, msg); |
| 1000 | if (blogic_cmd_failure_reason != NULL) |
| 1001 | blogic_err("ADDITIONAL FAILURE INFO - %s\n", adapter, |
| 1002 | blogic_cmd_failure_reason); |
| 1003 | return false; |
| 1004 | } |
| 1005 | |
| 1006 | |
| 1007 | /* |
| 1008 | blogic_probe probes for a BusLogic Host Adapter. |
| 1009 | */ |
| 1010 | |
| 1011 | static bool __init blogic_probe(struct blogic_adapter *adapter) |
| 1012 | { |
| 1013 | union blogic_stat_reg statusreg; |
| 1014 | union blogic_int_reg intreg; |
| 1015 | union blogic_geo_reg georeg; |
| 1016 | /* |
| 1017 | FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager. |
| 1018 | */ |
| 1019 | if (blogic_flashpoint_type(adapter)) { |
| 1020 | struct fpoint_info *fpinfo = &adapter->fpinfo; |
| 1021 | fpinfo->base_addr = (u32) adapter->io_addr; |
| 1022 | fpinfo->irq_ch = adapter->irq_ch; |
| 1023 | fpinfo->present = false; |
| 1024 | if (!(FlashPoint_ProbeHostAdapter(fpinfo) == 0 && |
| 1025 | fpinfo->present)) { |
| 1026 | blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", adapter, adapter->bus, adapter->dev); |
| 1027 | blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, but FlashPoint\n", adapter, adapter->io_addr, adapter->pci_addr); |
| 1028 | blogic_err("BusLogic: Probe Function failed to validate it.\n", adapter); |
| 1029 | return false; |
| 1030 | } |
| 1031 | if (blogic_global_options.trace_probe) |
| 1032 | blogic_notice("BusLogic_Probe(0x%lX): FlashPoint Found\n", adapter, adapter->io_addr); |
| 1033 | /* |
| 1034 | Indicate the Host Adapter Probe completed successfully. |
| 1035 | */ |
| 1036 | return true; |
| 1037 | } |
| 1038 | /* |
| 1039 | Read the Status, Interrupt, and Geometry Registers to test if there are I/O |
| 1040 | ports that respond, and to check the values to determine if they are from a |
| 1041 | BusLogic Host Adapter. A nonexistent I/O port will return 0xFF, in which |
| 1042 | case there is definitely no BusLogic Host Adapter at this base I/O Address. |
| 1043 | The test here is a subset of that used by the BusLogic Host Adapter BIOS. |
| 1044 | */ |
| 1045 | statusreg.all = blogic_rdstatus(adapter); |
| 1046 | intreg.all = blogic_rdint(adapter); |
| 1047 | georeg.all = blogic_rdgeom(adapter); |
| 1048 | if (blogic_global_options.trace_probe) |
| 1049 | blogic_notice("BusLogic_Probe(0x%lX): Status 0x%02X, Interrupt 0x%02X, Geometry 0x%02X\n", adapter, adapter->io_addr, statusreg.all, intreg.all, georeg.all); |
| 1050 | if (statusreg.all == 0 || statusreg.sr.diag_active || |
| 1051 | statusreg.sr.cmd_param_busy || statusreg.sr.rsvd || |
| 1052 | statusreg.sr.cmd_invalid || intreg.ir.rsvd != 0) |
| 1053 | return false; |
| 1054 | /* |
| 1055 | Check the undocumented Geometry Register to test if there is |
| 1056 | an I/O port that responded. Adaptec Host Adapters do not |
| 1057 | implement the Geometry Register, so this test helps serve to |
| 1058 | avoid incorrectly recognizing an Adaptec 1542A or 1542B as a |
| 1059 | BusLogic. Unfortunately, the Adaptec 1542C series does respond |
| 1060 | to the Geometry Register I/O port, but it will be rejected |
| 1061 | later when the Inquire Extended Setup Information command is |
| 1062 | issued in blogic_checkadapter. The AMI FastDisk Host Adapter |
| 1063 | is a BusLogic clone that implements the same interface as |
| 1064 | earlier BusLogic Host Adapters, including the undocumented |
| 1065 | commands, and is therefore supported by this driver. However, |
| 1066 | the AMI FastDisk always returns 0x00 upon reading the Geometry |
| 1067 | Register, so the extended translation option should always be |
| 1068 | left disabled on the AMI FastDisk. |
| 1069 | */ |
| 1070 | if (georeg.all == 0xFF) |
| 1071 | return false; |
| 1072 | /* |
| 1073 | Indicate the Host Adapter Probe completed successfully. |
| 1074 | */ |
| 1075 | return true; |
| 1076 | } |
| 1077 | |
| 1078 | |
| 1079 | /* |
| 1080 | blogic_hwreset issues a Hardware Reset to the Host Adapter |
| 1081 | and waits for Host Adapter Diagnostics to complete. If hard_reset is true, a |
| 1082 | Hard Reset is performed which also initiates a SCSI Bus Reset. Otherwise, a |
| 1083 | Soft Reset is performed which only resets the Host Adapter without forcing a |
| 1084 | SCSI Bus Reset. |
| 1085 | */ |
| 1086 | |
| 1087 | static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset) |
| 1088 | { |
| 1089 | union blogic_stat_reg statusreg; |
| 1090 | int timeout; |
| 1091 | /* |
| 1092 | FlashPoint Host Adapters are Hard Reset by the FlashPoint |
| 1093 | SCCB Manager. |
| 1094 | */ |
| 1095 | if (blogic_flashpoint_type(adapter)) { |
| 1096 | struct fpoint_info *fpinfo = &adapter->fpinfo; |
| 1097 | fpinfo->softreset = !hard_reset; |
| 1098 | fpinfo->report_underrun = true; |
| 1099 | adapter->cardhandle = |
| 1100 | FlashPoint_HardwareResetHostAdapter(fpinfo); |
| 1101 | if (adapter->cardhandle == (void *)FPOINT_BADCARD_HANDLE) |
| 1102 | return false; |
| 1103 | /* |
| 1104 | Indicate the Host Adapter Hard Reset completed successfully. |
| 1105 | */ |
| 1106 | return true; |
| 1107 | } |
| 1108 | /* |
| 1109 | Issue a Hard Reset or Soft Reset Command to the Host Adapter. |
| 1110 | The Host Adapter should respond by setting Diagnostic Active in |
| 1111 | the Status Register. |
| 1112 | */ |
| 1113 | if (hard_reset) |
| 1114 | blogic_hardreset(adapter); |
| 1115 | else |
| 1116 | blogic_softreset(adapter); |
| 1117 | /* |
| 1118 | Wait until Diagnostic Active is set in the Status Register. |
| 1119 | */ |
| 1120 | timeout = 5 * 10000; |
| 1121 | while (--timeout >= 0) { |
| 1122 | statusreg.all = blogic_rdstatus(adapter); |
| 1123 | if (statusreg.sr.diag_active) |
| 1124 | break; |
| 1125 | udelay(100); |
| 1126 | } |
| 1127 | if (blogic_global_options.trace_hw_reset) |
| 1128 | blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Active, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all); |
| 1129 | if (timeout < 0) |
| 1130 | return false; |
| 1131 | /* |
| 1132 | Wait 100 microseconds to allow completion of any initial diagnostic |
| 1133 | activity which might leave the contents of the Status Register |
| 1134 | unpredictable. |
| 1135 | */ |
| 1136 | udelay(100); |
| 1137 | /* |
| 1138 | Wait until Diagnostic Active is reset in the Status Register. |
| 1139 | */ |
| 1140 | timeout = 10 * 10000; |
| 1141 | while (--timeout >= 0) { |
| 1142 | statusreg.all = blogic_rdstatus(adapter); |
| 1143 | if (!statusreg.sr.diag_active) |
| 1144 | break; |
| 1145 | udelay(100); |
| 1146 | } |
| 1147 | if (blogic_global_options.trace_hw_reset) |
| 1148 | blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Completed, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all); |
| 1149 | if (timeout < 0) |
| 1150 | return false; |
| 1151 | /* |
| 1152 | Wait until at least one of the Diagnostic Failure, Host Adapter |
| 1153 | Ready, or Data In Register Ready bits is set in the Status Register. |
| 1154 | */ |
| 1155 | timeout = 10000; |
| 1156 | while (--timeout >= 0) { |
| 1157 | statusreg.all = blogic_rdstatus(adapter); |
| 1158 | if (statusreg.sr.diag_failed || statusreg.sr.adapter_ready || |
| 1159 | statusreg.sr.datain_ready) |
| 1160 | break; |
| 1161 | udelay(100); |
| 1162 | } |
| 1163 | if (blogic_global_options.trace_hw_reset) |
| 1164 | blogic_notice("BusLogic_HardwareReset(0x%lX): Host Adapter Ready, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all); |
| 1165 | if (timeout < 0) |
| 1166 | return false; |
| 1167 | /* |
| 1168 | If Diagnostic Failure is set or Host Adapter Ready is reset, |
| 1169 | then an error occurred during the Host Adapter diagnostics. |
| 1170 | If Data In Register Ready is set, then there is an Error Code |
| 1171 | available. |
| 1172 | */ |
| 1173 | if (statusreg.sr.diag_failed || !statusreg.sr.adapter_ready) { |
| 1174 | blogic_cmd_failure_reason = NULL; |
| 1175 | blogic_failure(adapter, "HARD RESET DIAGNOSTICS"); |
| 1176 | blogic_err("HOST ADAPTER STATUS REGISTER = %02X\n", adapter, |
| 1177 | statusreg.all); |
| 1178 | if (statusreg.sr.datain_ready) |
| 1179 | blogic_err("HOST ADAPTER ERROR CODE = %d\n", adapter, |
| 1180 | blogic_rddatain(adapter)); |
| 1181 | return false; |
| 1182 | } |
| 1183 | /* |
| 1184 | Indicate the Host Adapter Hard Reset completed successfully. |
| 1185 | */ |
| 1186 | return true; |
| 1187 | } |
| 1188 | |
| 1189 | |
| 1190 | /* |
| 1191 | blogic_checkadapter checks to be sure this really is a BusLogic |
| 1192 | Host Adapter. |
| 1193 | */ |
| 1194 | |
| 1195 | static bool __init blogic_checkadapter(struct blogic_adapter *adapter) |
| 1196 | { |
| 1197 | struct blogic_ext_setup ext_setupinfo; |
| 1198 | unsigned char req_replylen; |
| 1199 | bool result = true; |
| 1200 | /* |
| 1201 | FlashPoint Host Adapters do not require this protection. |
| 1202 | */ |
| 1203 | if (blogic_flashpoint_type(adapter)) |
| 1204 | return true; |
| 1205 | /* |
| 1206 | Issue the Inquire Extended Setup Information command. Only genuine |
| 1207 | BusLogic Host Adapters and true clones support this command. |
| 1208 | Adaptec 1542C series Host Adapters that respond to the Geometry |
| 1209 | Register I/O port will fail this command. |
| 1210 | */ |
| 1211 | req_replylen = sizeof(ext_setupinfo); |
| 1212 | if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen, |
| 1213 | sizeof(req_replylen), &ext_setupinfo, |
| 1214 | sizeof(ext_setupinfo)) != sizeof(ext_setupinfo)) |
| 1215 | result = false; |
| 1216 | /* |
| 1217 | Provide tracing information if requested and return. |
| 1218 | */ |
| 1219 | if (blogic_global_options.trace_probe) |
| 1220 | blogic_notice("BusLogic_Check(0x%lX): MultiMaster %s\n", adapter, |
| 1221 | adapter->io_addr, |
| 1222 | (result ? "Found" : "Not Found")); |
| 1223 | return result; |
| 1224 | } |
| 1225 | |
| 1226 | |
| 1227 | /* |
| 1228 | blogic_rdconfig reads the Configuration Information |
| 1229 | from Host Adapter and initializes the Host Adapter structure. |
| 1230 | */ |
| 1231 | |
| 1232 | static bool __init blogic_rdconfig(struct blogic_adapter *adapter) |
| 1233 | { |
| 1234 | struct blogic_board_id id; |
| 1235 | struct blogic_config config; |
| 1236 | struct blogic_setup_info setupinfo; |
| 1237 | struct blogic_ext_setup ext_setupinfo; |
| 1238 | unsigned char model[5]; |
| 1239 | unsigned char fw_ver_digit3; |
| 1240 | unsigned char fw_ver_letter; |
| 1241 | struct blogic_adapter_info adapter_info; |
| 1242 | struct blogic_fetch_localram fetch_localram; |
| 1243 | struct blogic_autoscsi autoscsi; |
| 1244 | union blogic_geo_reg georeg; |
| 1245 | unsigned char req_replylen; |
| 1246 | unsigned char *tgt, ch; |
| 1247 | int tgt_id, i; |
| 1248 | /* |
| 1249 | Configuration Information for FlashPoint Host Adapters is |
| 1250 | provided in the fpoint_info structure by the FlashPoint |
| 1251 | SCCB Manager's Probe Function. Initialize fields in the |
| 1252 | Host Adapter structure from the fpoint_info structure. |
| 1253 | */ |
| 1254 | if (blogic_flashpoint_type(adapter)) { |
| 1255 | struct fpoint_info *fpinfo = &adapter->fpinfo; |
| 1256 | tgt = adapter->model; |
| 1257 | *tgt++ = 'B'; |
| 1258 | *tgt++ = 'T'; |
| 1259 | *tgt++ = '-'; |
| 1260 | for (i = 0; i < sizeof(fpinfo->model); i++) |
| 1261 | *tgt++ = fpinfo->model[i]; |
| 1262 | *tgt++ = '\0'; |
| 1263 | strcpy(adapter->fw_ver, FLASHPOINT_FW_VER); |
| 1264 | adapter->scsi_id = fpinfo->scsi_id; |
| 1265 | adapter->ext_trans_enable = fpinfo->ext_trans_enable; |
| 1266 | adapter->parity = fpinfo->parity; |
| 1267 | adapter->reset_enabled = !fpinfo->softreset; |
| 1268 | adapter->level_int = true; |
| 1269 | adapter->wide = fpinfo->wide; |
| 1270 | adapter->differential = false; |
| 1271 | adapter->scam = true; |
| 1272 | adapter->ultra = true; |
| 1273 | adapter->ext_lun = true; |
| 1274 | adapter->terminfo_valid = true; |
| 1275 | adapter->low_term = fpinfo->low_term; |
| 1276 | adapter->high_term = fpinfo->high_term; |
| 1277 | adapter->scam_enabled = fpinfo->scam_enabled; |
| 1278 | adapter->scam_lev2 = fpinfo->scam_lev2; |
| 1279 | adapter->drvr_sglimit = BLOGIC_SG_LIMIT; |
| 1280 | adapter->maxdev = (adapter->wide ? 16 : 8); |
| 1281 | adapter->maxlun = 32; |
| 1282 | adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE; |
| 1283 | adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE; |
| 1284 | adapter->drvr_qdepth = 255; |
| 1285 | adapter->adapter_qdepth = adapter->drvr_qdepth; |
| 1286 | adapter->sync_ok = fpinfo->sync_ok; |
| 1287 | adapter->fast_ok = fpinfo->fast_ok; |
| 1288 | adapter->ultra_ok = fpinfo->ultra_ok; |
| 1289 | adapter->wide_ok = fpinfo->wide_ok; |
| 1290 | adapter->discon_ok = fpinfo->discon_ok; |
| 1291 | adapter->tagq_ok = 0xFFFF; |
| 1292 | goto common; |
| 1293 | } |
| 1294 | /* |
| 1295 | Issue the Inquire Board ID command. |
| 1296 | */ |
| 1297 | if (blogic_cmd(adapter, BLOGIC_GET_BOARD_ID, NULL, 0, &id, |
| 1298 | sizeof(id)) != sizeof(id)) |
| 1299 | return blogic_failure(adapter, "INQUIRE BOARD ID"); |
| 1300 | /* |
| 1301 | Issue the Inquire Configuration command. |
| 1302 | */ |
| 1303 | if (blogic_cmd(adapter, BLOGIC_INQ_CONFIG, NULL, 0, &config, |
| 1304 | sizeof(config)) |
| 1305 | != sizeof(config)) |
| 1306 | return blogic_failure(adapter, "INQUIRE CONFIGURATION"); |
| 1307 | /* |
| 1308 | Issue the Inquire Setup Information command. |
| 1309 | */ |
| 1310 | req_replylen = sizeof(setupinfo); |
| 1311 | if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen, |
| 1312 | sizeof(req_replylen), &setupinfo, |
| 1313 | sizeof(setupinfo)) != sizeof(setupinfo)) |
| 1314 | return blogic_failure(adapter, "INQUIRE SETUP INFORMATION"); |
| 1315 | /* |
| 1316 | Issue the Inquire Extended Setup Information command. |
| 1317 | */ |
| 1318 | req_replylen = sizeof(ext_setupinfo); |
| 1319 | if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen, |
| 1320 | sizeof(req_replylen), &ext_setupinfo, |
| 1321 | sizeof(ext_setupinfo)) != sizeof(ext_setupinfo)) |
| 1322 | return blogic_failure(adapter, |
| 1323 | "INQUIRE EXTENDED SETUP INFORMATION"); |
| 1324 | /* |
| 1325 | Issue the Inquire Firmware Version 3rd Digit command. |
| 1326 | */ |
| 1327 | fw_ver_digit3 = '\0'; |
| 1328 | if (id.fw_ver_digit1 > '0') |
| 1329 | if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_D3, NULL, 0, |
| 1330 | &fw_ver_digit3, |
| 1331 | sizeof(fw_ver_digit3)) != sizeof(fw_ver_digit3)) |
| 1332 | return blogic_failure(adapter, |
| 1333 | "INQUIRE FIRMWARE 3RD DIGIT"); |
| 1334 | /* |
| 1335 | Issue the Inquire Host Adapter Model Number command. |
| 1336 | */ |
| 1337 | if (ext_setupinfo.bus_type == 'A' && id.fw_ver_digit1 == '2') |
| 1338 | /* BusLogic BT-542B ISA 2.xx */ |
| 1339 | strcpy(model, "542B"); |
| 1340 | else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '2' && |
| 1341 | (id.fw_ver_digit2 <= '1' || (id.fw_ver_digit2 == '2' && |
| 1342 | fw_ver_digit3 == '0'))) |
| 1343 | /* BusLogic BT-742A EISA 2.1x or 2.20 */ |
| 1344 | strcpy(model, "742A"); |
| 1345 | else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '0') |
| 1346 | /* AMI FastDisk EISA Series 441 0.x */ |
| 1347 | strcpy(model, "747A"); |
| 1348 | else { |
| 1349 | req_replylen = sizeof(model); |
| 1350 | if (blogic_cmd(adapter, BLOGIC_INQ_MODELNO, &req_replylen, |
| 1351 | sizeof(req_replylen), &model, |
| 1352 | sizeof(model)) != sizeof(model)) |
| 1353 | return blogic_failure(adapter, |
| 1354 | "INQUIRE HOST ADAPTER MODEL NUMBER"); |
| 1355 | } |
| 1356 | /* |
| 1357 | BusLogic MultiMaster Host Adapters can be identified by their |
| 1358 | model number and the major version number of their firmware |
| 1359 | 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 |
| 1374 | structure. |
| 1375 | */ |
| 1376 | tgt = adapter->model; |
| 1377 | *tgt++ = 'B'; |
| 1378 | *tgt++ = 'T'; |
| 1379 | *tgt++ = '-'; |
| 1380 | for (i = 0; i < sizeof(model); i++) { |
| 1381 | ch = model[i]; |
| 1382 | if (ch == ' ' || ch == '\0') |
| 1383 | break; |
| 1384 | *tgt++ = ch; |
| 1385 | } |
| 1386 | *tgt++ = '\0'; |
| 1387 | /* |
| 1388 | Save the Firmware Version in the Host Adapter structure. |
| 1389 | */ |
| 1390 | tgt = adapter->fw_ver; |
| 1391 | *tgt++ = id.fw_ver_digit1; |
| 1392 | *tgt++ = '.'; |
| 1393 | *tgt++ = id.fw_ver_digit2; |
| 1394 | if (fw_ver_digit3 != ' ' && fw_ver_digit3 != '\0') |
| 1395 | *tgt++ = fw_ver_digit3; |
| 1396 | *tgt = '\0'; |
| 1397 | /* |
| 1398 | Issue the Inquire Firmware Version Letter command. |
| 1399 | */ |
| 1400 | if (strcmp(adapter->fw_ver, "3.3") >= 0) { |
| 1401 | if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_LETTER, NULL, 0, |
| 1402 | &fw_ver_letter, |
| 1403 | sizeof(fw_ver_letter)) != sizeof(fw_ver_letter)) |
| 1404 | return blogic_failure(adapter, |
| 1405 | "INQUIRE FIRMWARE VERSION LETTER"); |
| 1406 | if (fw_ver_letter != ' ' && fw_ver_letter != '\0') |
| 1407 | *tgt++ = fw_ver_letter; |
| 1408 | *tgt = '\0'; |
| 1409 | } |
| 1410 | /* |
| 1411 | Save the Host Adapter SCSI ID in the Host Adapter structure. |
| 1412 | */ |
| 1413 | adapter->scsi_id = config.id; |
| 1414 | /* |
| 1415 | Determine the Bus Type and save it in the Host Adapter structure, |
| 1416 | determine and save the IRQ Channel if necessary, and determine |
| 1417 | and save the DMA Channel for ISA Host Adapters. |
| 1418 | */ |
| 1419 | adapter->adapter_bus_type = |
| 1420 | blogic_adater_bus_types[adapter->model[3] - '4']; |
| 1421 | if (adapter->irq_ch == 0) { |
| 1422 | if (config.irq_ch9) |
| 1423 | adapter->irq_ch = 9; |
| 1424 | else if (config.irq_ch10) |
| 1425 | adapter->irq_ch = 10; |
| 1426 | else if (config.irq_ch11) |
| 1427 | adapter->irq_ch = 11; |
| 1428 | else if (config.irq_ch12) |
| 1429 | adapter->irq_ch = 12; |
| 1430 | else if (config.irq_ch14) |
| 1431 | adapter->irq_ch = 14; |
| 1432 | else if (config.irq_ch15) |
| 1433 | adapter->irq_ch = 15; |
| 1434 | } |
| 1435 | /* |
| 1436 | Determine whether Extended Translation is enabled and save it in |
| 1437 | the Host Adapter structure. |
| 1438 | */ |
| 1439 | georeg.all = blogic_rdgeom(adapter); |
| 1440 | adapter->ext_trans_enable = georeg.gr.ext_trans_enable; |
| 1441 | /* |
| 1442 | Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide |
| 1443 | SCSI flag, Differential SCSI flag, SCAM Supported flag, and |
| 1444 | Ultra SCSI flag in the Host Adapter structure. |
| 1445 | */ |
| 1446 | adapter->adapter_sglimit = ext_setupinfo.sg_limit; |
| 1447 | adapter->drvr_sglimit = adapter->adapter_sglimit; |
| 1448 | if (adapter->adapter_sglimit > BLOGIC_SG_LIMIT) |
| 1449 | adapter->drvr_sglimit = BLOGIC_SG_LIMIT; |
| 1450 | if (ext_setupinfo.misc.level_int) |
| 1451 | adapter->level_int = true; |
| 1452 | adapter->wide = ext_setupinfo.wide; |
| 1453 | adapter->differential = ext_setupinfo.differential; |
| 1454 | adapter->scam = ext_setupinfo.scam; |
| 1455 | adapter->ultra = ext_setupinfo.ultra; |
| 1456 | /* |
| 1457 | Determine whether Extended LUN Format CCBs are supported and save the |
| 1458 | information in the Host Adapter structure. |
| 1459 | */ |
| 1460 | if (adapter->fw_ver[0] == '5' || (adapter->fw_ver[0] == '4' && |
| 1461 | adapter->wide)) |
| 1462 | adapter->ext_lun = true; |
| 1463 | /* |
| 1464 | Issue the Inquire PCI Host Adapter Information command to read the |
| 1465 | Termination Information from "W" series MultiMaster Host Adapters. |
| 1466 | */ |
| 1467 | if (adapter->fw_ver[0] == '5') { |
| 1468 | if (blogic_cmd(adapter, BLOGIC_INQ_PCI_INFO, NULL, 0, |
| 1469 | &adapter_info, |
| 1470 | sizeof(adapter_info)) != sizeof(adapter_info)) |
| 1471 | return blogic_failure(adapter, |
| 1472 | "INQUIRE PCI HOST ADAPTER INFORMATION"); |
| 1473 | /* |
| 1474 | Save the Termination Information in the Host Adapter |
| 1475 | structure. |
| 1476 | */ |
| 1477 | if (adapter_info.genericinfo_valid) { |
| 1478 | adapter->terminfo_valid = true; |
| 1479 | adapter->low_term = adapter_info.low_term; |
| 1480 | adapter->high_term = adapter_info.high_term; |
| 1481 | } |
| 1482 | } |
| 1483 | /* |
| 1484 | Issue the Fetch Host Adapter Local RAM command to read the |
| 1485 | AutoSCSI data from "W" and "C" series MultiMaster Host Adapters. |
| 1486 | */ |
| 1487 | if (adapter->fw_ver[0] >= '4') { |
| 1488 | fetch_localram.offset = BLOGIC_AUTOSCSI_BASE; |
| 1489 | fetch_localram.count = sizeof(autoscsi); |
| 1490 | if (blogic_cmd(adapter, BLOGIC_FETCH_LOCALRAM, &fetch_localram, |
| 1491 | sizeof(fetch_localram), &autoscsi, |
| 1492 | sizeof(autoscsi)) != sizeof(autoscsi)) |
| 1493 | return blogic_failure(adapter, |
| 1494 | "FETCH HOST ADAPTER LOCAL RAM"); |
| 1495 | /* |
| 1496 | Save the Parity Checking Enabled, Bus Reset Enabled, |
| 1497 | and Termination Information in the Host Adapter structure. |
| 1498 | */ |
| 1499 | adapter->parity = autoscsi.parity; |
| 1500 | adapter->reset_enabled = autoscsi.reset_enabled; |
| 1501 | if (adapter->fw_ver[0] == '4') { |
| 1502 | adapter->terminfo_valid = true; |
| 1503 | adapter->low_term = autoscsi.low_term; |
| 1504 | adapter->high_term = autoscsi.high_term; |
| 1505 | } |
| 1506 | /* |
| 1507 | Save the Wide Permitted, Fast Permitted, Synchronous |
| 1508 | Permitted, Disconnect Permitted, Ultra Permitted, and |
| 1509 | SCAM Information in the Host Adapter structure. |
| 1510 | */ |
| 1511 | adapter->wide_ok = autoscsi.wide_ok; |
| 1512 | adapter->fast_ok = autoscsi.fast_ok; |
| 1513 | adapter->sync_ok = autoscsi.sync_ok; |
| 1514 | adapter->discon_ok = autoscsi.discon_ok; |
| 1515 | if (adapter->ultra) |
| 1516 | adapter->ultra_ok = autoscsi.ultra_ok; |
| 1517 | if (adapter->scam) { |
| 1518 | adapter->scam_enabled = autoscsi.scam_enabled; |
| 1519 | adapter->scam_lev2 = autoscsi.scam_lev2; |
| 1520 | } |
| 1521 | } |
| 1522 | /* |
| 1523 | Initialize fields in the Host Adapter structure for "S" and "A" |
| 1524 | series MultiMaster Host Adapters. |
| 1525 | */ |
| 1526 | if (adapter->fw_ver[0] < '4') { |
| 1527 | if (setupinfo.sync) { |
| 1528 | adapter->sync_ok = 0xFF; |
| 1529 | if (adapter->adapter_bus_type == BLOGIC_EISA_BUS) { |
| 1530 | if (ext_setupinfo.misc.fast_on_eisa) |
| 1531 | adapter->fast_ok = 0xFF; |
| 1532 | if (strcmp(adapter->model, "BT-757") == 0) |
| 1533 | adapter->wide_ok = 0xFF; |
| 1534 | } |
| 1535 | } |
| 1536 | adapter->discon_ok = 0xFF; |
| 1537 | adapter->parity = setupinfo.parity; |
| 1538 | adapter->reset_enabled = true; |
| 1539 | } |
| 1540 | /* |
| 1541 | Determine the maximum number of Target IDs and Logical Units |
| 1542 | supported by this driver for Wide and Narrow Host Adapters. |
| 1543 | */ |
| 1544 | adapter->maxdev = (adapter->wide ? 16 : 8); |
| 1545 | adapter->maxlun = (adapter->ext_lun ? 32 : 8); |
| 1546 | /* |
| 1547 | Select appropriate values for the Mailbox Count, Driver Queue Depth, |
| 1548 | Initial CCBs, and Incremental CCBs variables based on whether |
| 1549 | or not Strict Round Robin Mode is supported. If Strict Round |
| 1550 | Robin Mode is supported, then there is no performance degradation |
| 1551 | in using the maximum possible number of Outgoing and Incoming |
| 1552 | Mailboxes and allowing the Tagged and Untagged Queue Depths to |
| 1553 | determine the actual utilization. If Strict Round Robin Mode is |
| 1554 | not supported, then the Host Adapter must scan all the Outgoing |
| 1555 | Mailboxes whenever an Outgoing Mailbox entry is made, which can |
| 1556 | cause a substantial performance penalty. The host adapters |
| 1557 | actually have room to store the following number of CCBs |
| 1558 | internally; that is, they can internally queue and manage this |
| 1559 | many active commands on the SCSI bus simultaneously. Performance |
| 1560 | measurements demonstrate that the Driver Queue Depth should be |
| 1561 | set to the Mailbox Count, rather than the Host Adapter Queue |
| 1562 | Depth (internal CCB capacity), as it is more efficient to have the |
| 1563 | queued commands waiting in Outgoing Mailboxes if necessary than |
| 1564 | to block the process in the higher levels of the SCSI Subsystem. |
| 1565 | |
| 1566 | 192 BT-948/958/958D |
| 1567 | 100 BT-946C/956C/956CD/747C/757C/757CD/445C |
| 1568 | 50 BT-545C/540CF |
| 1569 | 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A |
| 1570 | */ |
| 1571 | if (adapter->fw_ver[0] == '5') |
| 1572 | adapter->adapter_qdepth = 192; |
| 1573 | else if (adapter->fw_ver[0] == '4') |
| 1574 | adapter->adapter_qdepth = 100; |
| 1575 | else |
| 1576 | adapter->adapter_qdepth = 30; |
| 1577 | if (strcmp(adapter->fw_ver, "3.31") >= 0) { |
| 1578 | adapter->strict_rr = true; |
| 1579 | adapter->mbox_count = BLOGIC_MAX_MAILBOX; |
| 1580 | } else { |
| 1581 | adapter->strict_rr = false; |
| 1582 | adapter->mbox_count = 32; |
| 1583 | } |
| 1584 | adapter->drvr_qdepth = adapter->mbox_count; |
| 1585 | adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE; |
| 1586 | adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE; |
| 1587 | /* |
| 1588 | Tagged Queuing support is available and operates properly on |
| 1589 | all "W" series MultiMaster Host Adapters, on "C" series |
| 1590 | MultiMaster Host Adapters with firmware version 4.22 and above, |
| 1591 | and on "S" series MultiMaster Host Adapters with firmware version |
| 1592 | 3.35 and above. |
| 1593 | */ |
| 1594 | adapter->tagq_ok = 0; |
| 1595 | switch (adapter->fw_ver[0]) { |
| 1596 | case '5': |
| 1597 | adapter->tagq_ok = 0xFFFF; |
| 1598 | break; |
| 1599 | case '4': |
| 1600 | if (strcmp(adapter->fw_ver, "4.22") >= 0) |
| 1601 | adapter->tagq_ok = 0xFFFF; |
| 1602 | break; |
| 1603 | case '3': |
| 1604 | if (strcmp(adapter->fw_ver, "3.35") >= 0) |
| 1605 | adapter->tagq_ok = 0xFFFF; |
| 1606 | break; |
| 1607 | } |
| 1608 | /* |
| 1609 | Determine the Host Adapter BIOS Address if the BIOS is enabled and |
| 1610 | save it in the Host Adapter structure. The BIOS is disabled if the |
| 1611 | bios_addr is 0. |
| 1612 | */ |
| 1613 | adapter->bios_addr = ext_setupinfo.bios_addr << 12; |
| 1614 | /* |
| 1615 | BusLogic BT-445S Host Adapters prior to board revision E have a |
| 1616 | hardware bug whereby when the BIOS is enabled, transfers to/from |
| 1617 | the same address range the BIOS occupies modulo 16MB are handled |
| 1618 | incorrectly. Only properly functioning BT-445S Host Adapters |
| 1619 | have firmware version 3.37. |
| 1620 | */ |
| 1621 | if (adapter->bios_addr > 0 && |
| 1622 | strcmp(adapter->model, "BT-445S") == 0 && |
| 1623 | strcmp(adapter->fw_ver, "3.37") < 0) |
| 1624 | return blogic_failure(adapter, "Too old firmware"); |
| 1625 | /* |
| 1626 | Initialize parameters common to MultiMaster and FlashPoint |
| 1627 | Host Adapters. |
| 1628 | */ |
| 1629 | common: |
| 1630 | /* |
| 1631 | Initialize the Host Adapter Full Model Name from the Model Name. |
| 1632 | */ |
| 1633 | strcpy(adapter->full_model, "BusLogic "); |
| 1634 | strcat(adapter->full_model, adapter->model); |
| 1635 | /* |
| 1636 | Select an appropriate value for the Tagged Queue Depth either from a |
| 1637 | BusLogic Driver Options specification, or based on whether this Host |
| 1638 | Adapter requires that ISA Bounce Buffers be used. The Tagged Queue |
| 1639 | Depth is left at 0 for automatic determination in |
| 1640 | BusLogic_SelectQueueDepths. Initialize the Untagged Queue Depth. |
| 1641 | */ |
| 1642 | for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) { |
| 1643 | unsigned char qdepth = 0; |
| 1644 | if (adapter->drvr_opts != NULL && |
| 1645 | adapter->drvr_opts->qdepth[tgt_id] > 0) |
| 1646 | qdepth = adapter->drvr_opts->qdepth[tgt_id]; |
| 1647 | adapter->qdepth[tgt_id] = qdepth; |
| 1648 | } |
| 1649 | adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH; |
| 1650 | if (adapter->drvr_opts != NULL) |
| 1651 | adapter->common_qdepth = adapter->drvr_opts->common_qdepth; |
| 1652 | if (adapter->common_qdepth > 0 && |
| 1653 | adapter->common_qdepth < adapter->untag_qdepth) |
| 1654 | adapter->untag_qdepth = adapter->common_qdepth; |
| 1655 | /* |
| 1656 | Tagged Queuing is only allowed if Disconnect/Reconnect is permitted. |
| 1657 | Therefore, mask the Tagged Queuing Permitted Default bits with the |
| 1658 | Disconnect/Reconnect Permitted bits. |
| 1659 | */ |
| 1660 | adapter->tagq_ok &= adapter->discon_ok; |
| 1661 | /* |
| 1662 | Combine the default Tagged Queuing Permitted bits with any |
| 1663 | BusLogic Driver Options Tagged Queuing specification. |
| 1664 | */ |
| 1665 | if (adapter->drvr_opts != NULL) |
| 1666 | adapter->tagq_ok = (adapter->drvr_opts->tagq_ok & |
| 1667 | adapter->drvr_opts->tagq_ok_mask) | |
| 1668 | (adapter->tagq_ok & ~adapter->drvr_opts->tagq_ok_mask); |
| 1669 | |
| 1670 | /* |
| 1671 | Select an appropriate value for Bus Settle Time either from a |
| 1672 | BusLogic Driver Options specification, or from |
| 1673 | BLOGIC_BUS_SETTLE_TIME. |
| 1674 | */ |
| 1675 | if (adapter->drvr_opts != NULL && |
| 1676 | adapter->drvr_opts->bus_settle_time > 0) |
| 1677 | adapter->bus_settle_time = adapter->drvr_opts->bus_settle_time; |
| 1678 | else |
| 1679 | adapter->bus_settle_time = BLOGIC_BUS_SETTLE_TIME; |
| 1680 | /* |
| 1681 | Indicate reading the Host Adapter Configuration completed |
| 1682 | successfully. |
| 1683 | */ |
| 1684 | return true; |
| 1685 | } |
| 1686 | |
| 1687 | |
| 1688 | /* |
| 1689 | blogic_reportconfig reports the configuration of Host Adapter. |
| 1690 | */ |
| 1691 | |
| 1692 | static bool __init blogic_reportconfig(struct blogic_adapter *adapter) |
| 1693 | { |
| 1694 | unsigned short alltgt_mask = (1 << adapter->maxdev) - 1; |
| 1695 | unsigned short sync_ok, fast_ok; |
| 1696 | unsigned short ultra_ok, wide_ok; |
| 1697 | unsigned short discon_ok, tagq_ok; |
| 1698 | bool common_syncneg, common_tagq_depth; |
| 1699 | char syncstr[BLOGIC_MAXDEV + 1]; |
| 1700 | char widestr[BLOGIC_MAXDEV + 1]; |
| 1701 | char discon_str[BLOGIC_MAXDEV + 1]; |
| 1702 | char tagq_str[BLOGIC_MAXDEV + 1]; |
| 1703 | char *syncmsg = syncstr; |
| 1704 | char *widemsg = widestr; |
| 1705 | char *discon_msg = discon_str; |
| 1706 | char *tagq_msg = tagq_str; |
| 1707 | int tgt_id; |
| 1708 | |
| 1709 | blogic_info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n", adapter, adapter->model, blogic_adapter_busnames[adapter->adapter_bus_type], (adapter->wide ? " Wide" : ""), (adapter->differential ? " Differential" : ""), (adapter->ultra ? " Ultra" : "")); |
| 1710 | blogic_info(" Firmware Version: %s, I/O Address: 0x%lX, IRQ Channel: %d/%s\n", adapter, adapter->fw_ver, adapter->io_addr, adapter->irq_ch, (adapter->level_int ? "Level" : "Edge")); |
| 1711 | if (adapter->adapter_bus_type != BLOGIC_PCI_BUS) { |
| 1712 | blogic_info(" DMA Channel: None, ", adapter); |
| 1713 | if (adapter->bios_addr > 0) |
| 1714 | blogic_info("BIOS Address: 0x%X, ", adapter, |
| 1715 | adapter->bios_addr); |
| 1716 | else |
| 1717 | blogic_info("BIOS Address: None, ", adapter); |
| 1718 | } else { |
| 1719 | blogic_info(" PCI Bus: %d, Device: %d, Address: ", adapter, |
| 1720 | adapter->bus, adapter->dev); |
| 1721 | if (adapter->pci_addr > 0) |
| 1722 | blogic_info("0x%lX, ", adapter, adapter->pci_addr); |
| 1723 | else |
| 1724 | blogic_info("Unassigned, ", adapter); |
| 1725 | } |
| 1726 | blogic_info("Host Adapter SCSI ID: %d\n", adapter, adapter->scsi_id); |
| 1727 | blogic_info(" Parity Checking: %s, Extended Translation: %s\n", |
| 1728 | adapter, (adapter->parity ? "Enabled" : "Disabled"), |
| 1729 | (adapter->ext_trans_enable ? "Enabled" : "Disabled")); |
| 1730 | alltgt_mask &= ~(1 << adapter->scsi_id); |
| 1731 | sync_ok = adapter->sync_ok & alltgt_mask; |
| 1732 | fast_ok = adapter->fast_ok & alltgt_mask; |
| 1733 | ultra_ok = adapter->ultra_ok & alltgt_mask; |
| 1734 | if ((blogic_multimaster_type(adapter) && |
| 1735 | (adapter->fw_ver[0] >= '4' || |
| 1736 | adapter->adapter_bus_type == BLOGIC_EISA_BUS)) || |
| 1737 | blogic_flashpoint_type(adapter)) { |
| 1738 | common_syncneg = false; |
| 1739 | if (sync_ok == 0) { |
| 1740 | syncmsg = "Disabled"; |
| 1741 | common_syncneg = true; |
| 1742 | } else if (sync_ok == alltgt_mask) { |
| 1743 | if (fast_ok == 0) { |
| 1744 | syncmsg = "Slow"; |
| 1745 | common_syncneg = true; |
| 1746 | } else if (fast_ok == alltgt_mask) { |
| 1747 | if (ultra_ok == 0) { |
| 1748 | syncmsg = "Fast"; |
| 1749 | common_syncneg = true; |
| 1750 | } else if (ultra_ok == alltgt_mask) { |
| 1751 | syncmsg = "Ultra"; |
| 1752 | common_syncneg = true; |
| 1753 | } |
| 1754 | } |
| 1755 | } |
| 1756 | if (!common_syncneg) { |
| 1757 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
| 1758 | syncstr[tgt_id] = ((!(sync_ok & (1 << tgt_id))) ? 'N' : (!(fast_ok & (1 << tgt_id)) ? 'S' : (!(ultra_ok & (1 << tgt_id)) ? 'F' : 'U'))); |
| 1759 | syncstr[adapter->scsi_id] = '#'; |
| 1760 | syncstr[adapter->maxdev] = '\0'; |
| 1761 | } |
| 1762 | } else |
| 1763 | syncmsg = (sync_ok == 0 ? "Disabled" : "Enabled"); |
| 1764 | wide_ok = adapter->wide_ok & alltgt_mask; |
| 1765 | if (wide_ok == 0) |
| 1766 | widemsg = "Disabled"; |
| 1767 | else if (wide_ok == alltgt_mask) |
| 1768 | widemsg = "Enabled"; |
| 1769 | else { |
| 1770 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
| 1771 | widestr[tgt_id] = ((wide_ok & (1 << tgt_id)) ? 'Y' : 'N'); |
| 1772 | widestr[adapter->scsi_id] = '#'; |
| 1773 | widestr[adapter->maxdev] = '\0'; |
| 1774 | } |
| 1775 | discon_ok = adapter->discon_ok & alltgt_mask; |
| 1776 | if (discon_ok == 0) |
| 1777 | discon_msg = "Disabled"; |
| 1778 | else if (discon_ok == alltgt_mask) |
| 1779 | discon_msg = "Enabled"; |
| 1780 | else { |
| 1781 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
| 1782 | discon_str[tgt_id] = ((discon_ok & (1 << tgt_id)) ? 'Y' : 'N'); |
| 1783 | discon_str[adapter->scsi_id] = '#'; |
| 1784 | discon_str[adapter->maxdev] = '\0'; |
| 1785 | } |
| 1786 | tagq_ok = adapter->tagq_ok & alltgt_mask; |
| 1787 | if (tagq_ok == 0) |
| 1788 | tagq_msg = "Disabled"; |
| 1789 | else if (tagq_ok == alltgt_mask) |
| 1790 | tagq_msg = "Enabled"; |
| 1791 | else { |
| 1792 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
| 1793 | tagq_str[tgt_id] = ((tagq_ok & (1 << tgt_id)) ? 'Y' : 'N'); |
| 1794 | tagq_str[adapter->scsi_id] = '#'; |
| 1795 | tagq_str[adapter->maxdev] = '\0'; |
| 1796 | } |
| 1797 | blogic_info(" Synchronous Negotiation: %s, Wide Negotiation: %s\n", |
| 1798 | adapter, syncmsg, widemsg); |
| 1799 | blogic_info(" Disconnect/Reconnect: %s, Tagged Queuing: %s\n", adapter, |
| 1800 | discon_msg, tagq_msg); |
| 1801 | if (blogic_multimaster_type(adapter)) { |
| 1802 | blogic_info(" Scatter/Gather Limit: %d of %d segments, Mailboxes: %d\n", adapter, adapter->drvr_sglimit, adapter->adapter_sglimit, adapter->mbox_count); |
| 1803 | blogic_info(" Driver Queue Depth: %d, Host Adapter Queue Depth: %d\n", adapter, adapter->drvr_qdepth, adapter->adapter_qdepth); |
| 1804 | } else |
| 1805 | blogic_info(" Driver Queue Depth: %d, Scatter/Gather Limit: %d segments\n", adapter, adapter->drvr_qdepth, adapter->drvr_sglimit); |
| 1806 | blogic_info(" Tagged Queue Depth: ", adapter); |
| 1807 | common_tagq_depth = true; |
| 1808 | for (tgt_id = 1; tgt_id < adapter->maxdev; tgt_id++) |
| 1809 | if (adapter->qdepth[tgt_id] != adapter->qdepth[0]) { |
| 1810 | common_tagq_depth = false; |
| 1811 | break; |
| 1812 | } |
| 1813 | if (common_tagq_depth) { |
| 1814 | if (adapter->qdepth[0] > 0) |
| 1815 | blogic_info("%d", adapter, adapter->qdepth[0]); |
| 1816 | else |
| 1817 | blogic_info("Automatic", adapter); |
| 1818 | } else |
| 1819 | blogic_info("Individual", adapter); |
| 1820 | blogic_info(", Untagged Queue Depth: %d\n", adapter, |
| 1821 | adapter->untag_qdepth); |
| 1822 | if (adapter->terminfo_valid) { |
| 1823 | if (adapter->wide) |
| 1824 | blogic_info(" SCSI Bus Termination: %s", adapter, |
| 1825 | (adapter->low_term ? (adapter->high_term ? "Both Enabled" : "Low Enabled") : (adapter->high_term ? "High Enabled" : "Both Disabled"))); |
| 1826 | else |
| 1827 | blogic_info(" SCSI Bus Termination: %s", adapter, |
| 1828 | (adapter->low_term ? "Enabled" : "Disabled")); |
| 1829 | if (adapter->scam) |
| 1830 | blogic_info(", SCAM: %s", adapter, |
| 1831 | (adapter->scam_enabled ? (adapter->scam_lev2 ? "Enabled, Level 2" : "Enabled, Level 1") : "Disabled")); |
| 1832 | blogic_info("\n", adapter); |
| 1833 | } |
| 1834 | /* |
| 1835 | Indicate reporting the Host Adapter configuration completed |
| 1836 | successfully. |
| 1837 | */ |
| 1838 | return true; |
| 1839 | } |
| 1840 | |
| 1841 | |
| 1842 | /* |
| 1843 | blogic_getres acquires the system resources necessary to use |
| 1844 | Host Adapter. |
| 1845 | */ |
| 1846 | |
| 1847 | static bool __init blogic_getres(struct blogic_adapter *adapter) |
| 1848 | { |
| 1849 | if (adapter->irq_ch == 0) { |
| 1850 | blogic_err("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n", |
| 1851 | adapter); |
| 1852 | return false; |
| 1853 | } |
| 1854 | /* |
| 1855 | Acquire shared access to the IRQ Channel. |
| 1856 | */ |
| 1857 | if (request_irq(adapter->irq_ch, blogic_inthandler, IRQF_SHARED, |
| 1858 | adapter->full_model, adapter) < 0) { |
| 1859 | blogic_err("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n", |
| 1860 | adapter, adapter->irq_ch); |
| 1861 | return false; |
| 1862 | } |
| 1863 | adapter->irq_acquired = true; |
| 1864 | /* |
| 1865 | Indicate the System Resource Acquisition completed successfully, |
| 1866 | */ |
| 1867 | return true; |
| 1868 | } |
| 1869 | |
| 1870 | |
| 1871 | /* |
| 1872 | blogic_relres releases any system resources previously acquired |
| 1873 | by blogic_getres. |
| 1874 | */ |
| 1875 | |
| 1876 | static void blogic_relres(struct blogic_adapter *adapter) |
| 1877 | { |
| 1878 | /* |
| 1879 | Release shared access to the IRQ Channel. |
| 1880 | */ |
| 1881 | if (adapter->irq_acquired) |
| 1882 | free_irq(adapter->irq_ch, adapter); |
| 1883 | /* |
| 1884 | Release any allocated memory structs not released elsewhere |
| 1885 | */ |
| 1886 | if (adapter->mbox_space) |
| 1887 | dma_free_coherent(&adapter->pci_device->dev, adapter->mbox_sz, |
| 1888 | adapter->mbox_space, adapter->mbox_space_handle); |
| 1889 | pci_dev_put(adapter->pci_device); |
| 1890 | adapter->mbox_space = NULL; |
| 1891 | adapter->mbox_space_handle = 0; |
| 1892 | adapter->mbox_sz = 0; |
| 1893 | } |
| 1894 | |
| 1895 | |
| 1896 | /* |
| 1897 | blogic_initadapter initializes Host Adapter. This is the only |
| 1898 | function called during SCSI Host Adapter detection which modifies the state |
| 1899 | of the Host Adapter from its initial power on or hard reset state. |
| 1900 | */ |
| 1901 | |
| 1902 | static bool blogic_initadapter(struct blogic_adapter *adapter) |
| 1903 | { |
| 1904 | struct blogic_extmbox_req extmbox_req; |
| 1905 | enum blogic_rr_req rr_req; |
| 1906 | enum blogic_setccb_fmt setccb_fmt; |
| 1907 | int tgt_id; |
| 1908 | |
| 1909 | /* |
| 1910 | Initialize the pointers to the first and last CCBs that are |
| 1911 | queued for completion processing. |
| 1912 | */ |
| 1913 | adapter->firstccb = NULL; |
| 1914 | adapter->lastccb = NULL; |
| 1915 | |
| 1916 | /* |
| 1917 | Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active, |
| 1918 | Command Successful Flag, Active Commands, and Commands Since Reset |
| 1919 | for each Target Device. |
| 1920 | */ |
| 1921 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) { |
| 1922 | adapter->bdr_pend[tgt_id] = NULL; |
| 1923 | adapter->tgt_flags[tgt_id].tagq_active = false; |
| 1924 | adapter->tgt_flags[tgt_id].cmd_good = false; |
| 1925 | adapter->active_cmds[tgt_id] = 0; |
| 1926 | adapter->cmds_since_rst[tgt_id] = 0; |
| 1927 | } |
| 1928 | |
| 1929 | /* |
| 1930 | FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes. |
| 1931 | */ |
| 1932 | if (blogic_flashpoint_type(adapter)) |
| 1933 | goto done; |
| 1934 | |
| 1935 | /* |
| 1936 | Initialize the Outgoing and Incoming Mailbox pointers. |
| 1937 | */ |
| 1938 | adapter->mbox_sz = adapter->mbox_count * (sizeof(struct blogic_outbox) + sizeof(struct blogic_inbox)); |
| 1939 | adapter->mbox_space = dma_alloc_coherent(&adapter->pci_device->dev, |
| 1940 | adapter->mbox_sz, &adapter->mbox_space_handle, |
| 1941 | GFP_KERNEL); |
| 1942 | if (adapter->mbox_space == NULL) |
| 1943 | return blogic_failure(adapter, "MAILBOX ALLOCATION"); |
| 1944 | adapter->first_outbox = (struct blogic_outbox *) adapter->mbox_space; |
| 1945 | adapter->last_outbox = adapter->first_outbox + adapter->mbox_count - 1; |
| 1946 | adapter->next_outbox = adapter->first_outbox; |
| 1947 | adapter->first_inbox = (struct blogic_inbox *) (adapter->last_outbox + 1); |
| 1948 | adapter->last_inbox = adapter->first_inbox + adapter->mbox_count - 1; |
| 1949 | adapter->next_inbox = adapter->first_inbox; |
| 1950 | |
| 1951 | /* |
| 1952 | Initialize the Outgoing and Incoming Mailbox structures. |
| 1953 | */ |
| 1954 | memset(adapter->first_outbox, 0, |
| 1955 | adapter->mbox_count * sizeof(struct blogic_outbox)); |
| 1956 | memset(adapter->first_inbox, 0, |
| 1957 | adapter->mbox_count * sizeof(struct blogic_inbox)); |
| 1958 | |
| 1959 | /* |
| 1960 | Initialize the Host Adapter's Pointer to the Outgoing/Incoming |
| 1961 | Mailboxes. |
| 1962 | */ |
| 1963 | extmbox_req.mbox_count = adapter->mbox_count; |
| 1964 | extmbox_req.base_mbox_addr = (u32) adapter->mbox_space_handle; |
| 1965 | if (blogic_cmd(adapter, BLOGIC_INIT_EXT_MBOX, &extmbox_req, |
| 1966 | sizeof(extmbox_req), NULL, 0) < 0) |
| 1967 | return blogic_failure(adapter, "MAILBOX INITIALIZATION"); |
| 1968 | /* |
| 1969 | Enable Strict Round Robin Mode if supported by the Host Adapter. In |
| 1970 | Strict Round Robin Mode, the Host Adapter only looks at the next |
| 1971 | Outgoing Mailbox for each new command, rather than scanning |
| 1972 | through all the Outgoing Mailboxes to find any that have new |
| 1973 | commands in them. Strict Round Robin Mode is significantly more |
| 1974 | efficient. |
| 1975 | */ |
| 1976 | if (adapter->strict_rr) { |
| 1977 | rr_req = BLOGIC_STRICT_RR_MODE; |
| 1978 | if (blogic_cmd(adapter, BLOGIC_STRICT_RR, &rr_req, |
| 1979 | sizeof(rr_req), NULL, 0) < 0) |
| 1980 | return blogic_failure(adapter, |
| 1981 | "ENABLE STRICT ROUND ROBIN MODE"); |
| 1982 | } |
| 1983 | |
| 1984 | /* |
| 1985 | For Host Adapters that support Extended LUN Format CCBs, issue the |
| 1986 | Set CCB Format command to allow 32 Logical Units per Target Device. |
| 1987 | */ |
| 1988 | if (adapter->ext_lun) { |
| 1989 | setccb_fmt = BLOGIC_EXT_LUN_CCB; |
| 1990 | if (blogic_cmd(adapter, BLOGIC_SETCCB_FMT, &setccb_fmt, |
| 1991 | sizeof(setccb_fmt), NULL, 0) < 0) |
| 1992 | return blogic_failure(adapter, "SET CCB FORMAT"); |
| 1993 | } |
| 1994 | |
| 1995 | /* |
| 1996 | Announce Successful Initialization. |
| 1997 | */ |
| 1998 | done: |
| 1999 | if (!adapter->adapter_initd) { |
| 2000 | blogic_info("*** %s Initialized Successfully ***\n", adapter, |
| 2001 | adapter->full_model); |
| 2002 | blogic_info("\n", adapter); |
| 2003 | } else |
| 2004 | blogic_warn("*** %s Initialized Successfully ***\n", adapter, |
| 2005 | adapter->full_model); |
| 2006 | adapter->adapter_initd = true; |
| 2007 | |
| 2008 | /* |
| 2009 | Indicate the Host Adapter Initialization completed successfully. |
| 2010 | */ |
| 2011 | return true; |
| 2012 | } |
| 2013 | |
| 2014 | |
| 2015 | /* |
| 2016 | blogic_inquiry inquires about the Target Devices accessible |
| 2017 | through Host Adapter. |
| 2018 | */ |
| 2019 | |
| 2020 | static bool __init blogic_inquiry(struct blogic_adapter *adapter) |
| 2021 | { |
| 2022 | u16 installed_devs; |
| 2023 | u8 installed_devs0to7[8]; |
| 2024 | struct blogic_setup_info setupinfo; |
| 2025 | u8 sync_period[BLOGIC_MAXDEV]; |
| 2026 | unsigned char req_replylen; |
| 2027 | int tgt_id; |
| 2028 | |
| 2029 | /* |
| 2030 | Wait a few seconds between the Host Adapter Hard Reset which |
| 2031 | initiates a SCSI Bus Reset and issuing any SCSI Commands. Some |
| 2032 | SCSI devices get confused if they receive SCSI Commands too soon |
| 2033 | after a SCSI Bus Reset. |
| 2034 | */ |
| 2035 | blogic_delay(adapter->bus_settle_time); |
| 2036 | /* |
| 2037 | FlashPoint Host Adapters do not provide for Target Device Inquiry. |
| 2038 | */ |
| 2039 | if (blogic_flashpoint_type(adapter)) |
| 2040 | return true; |
| 2041 | /* |
| 2042 | Inhibit the Target Device Inquiry if requested. |
| 2043 | */ |
| 2044 | if (adapter->drvr_opts != NULL && adapter->drvr_opts->stop_tgt_inquiry) |
| 2045 | return true; |
| 2046 | /* |
| 2047 | Issue the Inquire Target Devices command for host adapters with |
| 2048 | firmware version 4.25 or later, or the Inquire Installed Devices |
| 2049 | ID 0 to 7 command for older host adapters. This is necessary to |
| 2050 | force Synchronous Transfer Negotiation so that the Inquire Setup |
| 2051 | Information and Inquire Synchronous Period commands will return |
| 2052 | valid data. The Inquire Target Devices command is preferable to |
| 2053 | Inquire Installed Devices ID 0 to 7 since it only probes Logical |
| 2054 | Unit 0 of each Target Device. |
| 2055 | */ |
| 2056 | if (strcmp(adapter->fw_ver, "4.25") >= 0) { |
| 2057 | |
| 2058 | /* |
| 2059 | Issue a Inquire Target Devices command. Inquire Target |
| 2060 | Devices only tests Logical Unit 0 of each Target Device |
| 2061 | unlike the Inquire Installed Devices commands which test |
| 2062 | Logical Units 0 - 7. Two bytes are returned, where byte |
| 2063 | 0 bit 0 set indicates that Target Device 0 exists, and so on. |
| 2064 | */ |
| 2065 | |
| 2066 | if (blogic_cmd(adapter, BLOGIC_INQ_DEV, NULL, 0, |
| 2067 | &installed_devs, sizeof(installed_devs)) |
| 2068 | != sizeof(installed_devs)) |
| 2069 | return blogic_failure(adapter, "INQUIRE TARGET DEVICES"); |
| 2070 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
| 2071 | adapter->tgt_flags[tgt_id].tgt_exists = |
| 2072 | (installed_devs & (1 << tgt_id) ? true : false); |
| 2073 | } else { |
| 2074 | |
| 2075 | /* |
| 2076 | Issue an Inquire Installed Devices command. For each |
| 2077 | Target Device, a byte is returned where bit 0 set |
| 2078 | indicates that Logical Unit 0 * exists, bit 1 set |
| 2079 | indicates that Logical Unit 1 exists, and so on. |
| 2080 | */ |
| 2081 | |
| 2082 | if (blogic_cmd(adapter, BLOGIC_INQ_DEV0TO7, NULL, 0, |
| 2083 | &installed_devs0to7, sizeof(installed_devs0to7)) |
| 2084 | != sizeof(installed_devs0to7)) |
| 2085 | return blogic_failure(adapter, |
| 2086 | "INQUIRE INSTALLED DEVICES ID 0 TO 7"); |
| 2087 | for (tgt_id = 0; tgt_id < 8; tgt_id++) |
| 2088 | adapter->tgt_flags[tgt_id].tgt_exists = |
| 2089 | installed_devs0to7[tgt_id] != 0; |
| 2090 | } |
| 2091 | /* |
| 2092 | Issue the Inquire Setup Information command. |
| 2093 | */ |
| 2094 | req_replylen = sizeof(setupinfo); |
| 2095 | if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen, |
| 2096 | sizeof(req_replylen), &setupinfo, sizeof(setupinfo)) |
| 2097 | != sizeof(setupinfo)) |
| 2098 | return blogic_failure(adapter, "INQUIRE SETUP INFORMATION"); |
| 2099 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
| 2100 | adapter->sync_offset[tgt_id] = (tgt_id < 8 ? setupinfo.sync0to7[tgt_id].offset : setupinfo.sync8to15[tgt_id - 8].offset); |
| 2101 | if (strcmp(adapter->fw_ver, "5.06L") >= 0) |
| 2102 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
| 2103 | adapter->tgt_flags[tgt_id].wide_active = (tgt_id < 8 ? (setupinfo.wide_tx_active0to7 & (1 << tgt_id) ? true : false) : (setupinfo.wide_tx_active8to15 & (1 << (tgt_id - 8)) ? true : false)); |
| 2104 | /* |
| 2105 | Issue the Inquire Synchronous Period command. |
| 2106 | */ |
| 2107 | if (adapter->fw_ver[0] >= '3') { |
| 2108 | |
| 2109 | /* Issue a Inquire Synchronous Period command. For each |
| 2110 | Target Device, a byte is returned which represents the |
| 2111 | Synchronous Transfer Period in units of 10 nanoseconds. |
| 2112 | */ |
| 2113 | |
| 2114 | req_replylen = sizeof(sync_period); |
| 2115 | if (blogic_cmd(adapter, BLOGIC_INQ_SYNC_PERIOD, &req_replylen, |
| 2116 | sizeof(req_replylen), &sync_period, |
| 2117 | sizeof(sync_period)) != sizeof(sync_period)) |
| 2118 | return blogic_failure(adapter, |
| 2119 | "INQUIRE SYNCHRONOUS PERIOD"); |
| 2120 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
| 2121 | adapter->sync_period[tgt_id] = sync_period[tgt_id]; |
| 2122 | } else |
| 2123 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
| 2124 | if (setupinfo.sync0to7[tgt_id].offset > 0) |
| 2125 | adapter->sync_period[tgt_id] = 20 + 5 * setupinfo.sync0to7[tgt_id].tx_period; |
| 2126 | /* |
| 2127 | Indicate the Target Device Inquiry completed successfully. |
| 2128 | */ |
| 2129 | return true; |
| 2130 | } |
| 2131 | |
| 2132 | /* |
| 2133 | blogic_inithoststruct initializes the fields in the SCSI Host |
| 2134 | structure. The base, io_port, n_io_ports, irq, and dma_channel fields in the |
| 2135 | SCSI Host structure are intentionally left uninitialized, as this driver |
| 2136 | handles acquisition and release of these resources explicitly, as well as |
| 2137 | ensuring exclusive access to the Host Adapter hardware and data structures |
| 2138 | through explicit acquisition and release of the Host Adapter's Lock. |
| 2139 | */ |
| 2140 | |
| 2141 | static void __init blogic_inithoststruct(struct blogic_adapter *adapter, |
| 2142 | struct Scsi_Host *host) |
| 2143 | { |
| 2144 | host->max_id = adapter->maxdev; |
| 2145 | host->max_lun = adapter->maxlun; |
| 2146 | host->max_channel = 0; |
| 2147 | host->unique_id = adapter->io_addr; |
| 2148 | host->this_id = adapter->scsi_id; |
| 2149 | host->can_queue = adapter->drvr_qdepth; |
| 2150 | host->sg_tablesize = adapter->drvr_sglimit; |
| 2151 | host->cmd_per_lun = adapter->untag_qdepth; |
| 2152 | } |
| 2153 | |
| 2154 | /* |
| 2155 | blogic_slaveconfig will actually set the queue depth on individual |
| 2156 | scsi devices as they are permanently added to the device chain. We |
| 2157 | shamelessly rip off the SelectQueueDepths code to make this work mostly |
| 2158 | like it used to. Since we don't get called once at the end of the scan |
| 2159 | but instead get called for each device, we have to do things a bit |
| 2160 | differently. |
| 2161 | */ |
| 2162 | static int blogic_slaveconfig(struct scsi_device *dev) |
| 2163 | { |
| 2164 | struct blogic_adapter *adapter = |
| 2165 | (struct blogic_adapter *) dev->host->hostdata; |
| 2166 | int tgt_id = dev->id; |
| 2167 | int qdepth = adapter->qdepth[tgt_id]; |
| 2168 | |
| 2169 | if (adapter->tgt_flags[tgt_id].tagq_ok && |
| 2170 | (adapter->tagq_ok & (1 << tgt_id))) { |
| 2171 | if (qdepth == 0) |
| 2172 | qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH; |
| 2173 | adapter->qdepth[tgt_id] = qdepth; |
| 2174 | scsi_change_queue_depth(dev, qdepth); |
| 2175 | } else { |
| 2176 | adapter->tagq_ok &= ~(1 << tgt_id); |
| 2177 | qdepth = adapter->untag_qdepth; |
| 2178 | adapter->qdepth[tgt_id] = qdepth; |
| 2179 | scsi_change_queue_depth(dev, qdepth); |
| 2180 | } |
| 2181 | qdepth = 0; |
| 2182 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) |
| 2183 | if (adapter->tgt_flags[tgt_id].tgt_exists) |
| 2184 | qdepth += adapter->qdepth[tgt_id]; |
| 2185 | if (qdepth > adapter->alloc_ccbs) |
| 2186 | blogic_create_addlccbs(adapter, qdepth - adapter->alloc_ccbs, |
| 2187 | false); |
| 2188 | return 0; |
| 2189 | } |
| 2190 | |
| 2191 | /* |
| 2192 | blogic_init probes for BusLogic Host Adapters at the standard |
| 2193 | I/O Addresses where they may be located, initializing, registering, and |
| 2194 | reporting the configuration of each BusLogic Host Adapter it finds. It |
| 2195 | returns the number of BusLogic Host Adapters successfully initialized and |
| 2196 | registered. |
| 2197 | */ |
| 2198 | |
| 2199 | static int __init blogic_init(void) |
| 2200 | { |
| 2201 | int adapter_count = 0, drvr_optindex = 0, probeindex; |
| 2202 | struct blogic_adapter *adapter; |
| 2203 | int ret = 0; |
| 2204 | |
| 2205 | #ifdef MODULE |
| 2206 | if (BusLogic) |
| 2207 | blogic_setup(BusLogic); |
| 2208 | #endif |
| 2209 | |
| 2210 | if (blogic_probe_options.noprobe) |
| 2211 | return -ENODEV; |
| 2212 | blogic_probeinfo_list = |
| 2213 | kcalloc(BLOGIC_MAX_ADAPTERS, sizeof(struct blogic_probeinfo), |
| 2214 | GFP_KERNEL); |
| 2215 | if (blogic_probeinfo_list == NULL) { |
| 2216 | blogic_err("BusLogic: Unable to allocate Probe Info List\n", |
| 2217 | NULL); |
| 2218 | return -ENOMEM; |
| 2219 | } |
| 2220 | |
| 2221 | adapter = kzalloc(sizeof(struct blogic_adapter), GFP_KERNEL); |
| 2222 | if (adapter == NULL) { |
| 2223 | kfree(blogic_probeinfo_list); |
| 2224 | blogic_err("BusLogic: Unable to allocate Prototype Host Adapter\n", NULL); |
| 2225 | return -ENOMEM; |
| 2226 | } |
| 2227 | |
| 2228 | #ifdef MODULE |
| 2229 | if (BusLogic != NULL) |
| 2230 | blogic_setup(BusLogic); |
| 2231 | #endif |
| 2232 | blogic_init_probeinfo_list(adapter); |
| 2233 | for (probeindex = 0; probeindex < blogic_probeinfo_count; probeindex++) { |
| 2234 | struct blogic_probeinfo *probeinfo = |
| 2235 | &blogic_probeinfo_list[probeindex]; |
| 2236 | struct blogic_adapter *myadapter = adapter; |
| 2237 | struct Scsi_Host *host; |
| 2238 | |
| 2239 | if (probeinfo->io_addr == 0) |
| 2240 | continue; |
| 2241 | memset(myadapter, 0, sizeof(struct blogic_adapter)); |
| 2242 | myadapter->adapter_type = probeinfo->adapter_type; |
| 2243 | myadapter->adapter_bus_type = probeinfo->adapter_bus_type; |
| 2244 | myadapter->io_addr = probeinfo->io_addr; |
| 2245 | myadapter->pci_addr = probeinfo->pci_addr; |
| 2246 | myadapter->bus = probeinfo->bus; |
| 2247 | myadapter->dev = probeinfo->dev; |
| 2248 | myadapter->pci_device = probeinfo->pci_device; |
| 2249 | myadapter->irq_ch = probeinfo->irq_ch; |
| 2250 | myadapter->addr_count = |
| 2251 | blogic_adapter_addr_count[myadapter->adapter_type]; |
| 2252 | |
| 2253 | /* |
| 2254 | Make sure region is free prior to probing. |
| 2255 | */ |
| 2256 | if (!request_region(myadapter->io_addr, myadapter->addr_count, |
| 2257 | "BusLogic")) |
| 2258 | continue; |
| 2259 | /* |
| 2260 | Probe the Host Adapter. If unsuccessful, abort further |
| 2261 | initialization. |
| 2262 | */ |
| 2263 | if (!blogic_probe(myadapter)) { |
| 2264 | release_region(myadapter->io_addr, |
| 2265 | myadapter->addr_count); |
| 2266 | continue; |
| 2267 | } |
| 2268 | /* |
| 2269 | Hard Reset the Host Adapter. If unsuccessful, abort further |
| 2270 | initialization. |
| 2271 | */ |
| 2272 | if (!blogic_hwreset(myadapter, true)) { |
| 2273 | release_region(myadapter->io_addr, |
| 2274 | myadapter->addr_count); |
| 2275 | continue; |
| 2276 | } |
| 2277 | /* |
| 2278 | Check the Host Adapter. If unsuccessful, abort further |
| 2279 | initialization. |
| 2280 | */ |
| 2281 | if (!blogic_checkadapter(myadapter)) { |
| 2282 | release_region(myadapter->io_addr, |
| 2283 | myadapter->addr_count); |
| 2284 | continue; |
| 2285 | } |
| 2286 | /* |
| 2287 | Initialize the Driver Options field if provided. |
| 2288 | */ |
| 2289 | if (drvr_optindex < blogic_drvr_options_count) |
| 2290 | myadapter->drvr_opts = |
| 2291 | &blogic_drvr_options[drvr_optindex++]; |
| 2292 | /* |
| 2293 | Announce the Driver Version and Date, Author's Name, |
| 2294 | Copyright Notice, and Electronic Mail Address. |
| 2295 | */ |
| 2296 | blogic_announce_drvr(myadapter); |
| 2297 | /* |
| 2298 | Register the SCSI Host structure. |
| 2299 | */ |
| 2300 | |
| 2301 | host = scsi_host_alloc(&blogic_template, |
| 2302 | sizeof(struct blogic_adapter)); |
| 2303 | if (host == NULL) { |
| 2304 | release_region(myadapter->io_addr, |
| 2305 | myadapter->addr_count); |
| 2306 | continue; |
| 2307 | } |
| 2308 | myadapter = (struct blogic_adapter *) host->hostdata; |
| 2309 | memcpy(myadapter, adapter, sizeof(struct blogic_adapter)); |
| 2310 | myadapter->scsi_host = host; |
| 2311 | myadapter->host_no = host->host_no; |
| 2312 | /* |
| 2313 | Add Host Adapter to the end of the list of registered |
| 2314 | BusLogic Host Adapters. |
| 2315 | */ |
| 2316 | list_add_tail(&myadapter->host_list, &blogic_host_list); |
| 2317 | |
| 2318 | /* |
| 2319 | Read the Host Adapter Configuration, Configure the Host |
| 2320 | Adapter, Acquire the System Resources necessary to use |
| 2321 | the Host Adapter, then Create the Initial CCBs, Initialize |
| 2322 | the Host Adapter, and finally perform Target Device |
| 2323 | Inquiry. From this point onward, any failure will be |
| 2324 | assumed to be due to a problem with the Host Adapter, |
| 2325 | rather than due to having mistakenly identified this port |
| 2326 | as belonging to a BusLogic Host Adapter. The I/O Address |
| 2327 | range will not be released, thereby preventing it from |
| 2328 | being incorrectly identified as any other type of Host |
| 2329 | Adapter. |
| 2330 | */ |
| 2331 | if (blogic_rdconfig(myadapter) && |
| 2332 | blogic_reportconfig(myadapter) && |
| 2333 | blogic_getres(myadapter) && |
| 2334 | blogic_create_initccbs(myadapter) && |
| 2335 | blogic_initadapter(myadapter) && |
| 2336 | blogic_inquiry(myadapter)) { |
| 2337 | /* |
| 2338 | Initialization has been completed successfully. |
| 2339 | Release and re-register usage of the I/O Address |
| 2340 | range so that the Model Name of the Host Adapter |
| 2341 | will appear, and initialize the SCSI Host structure. |
| 2342 | */ |
| 2343 | release_region(myadapter->io_addr, |
| 2344 | myadapter->addr_count); |
| 2345 | if (!request_region(myadapter->io_addr, |
| 2346 | myadapter->addr_count, |
| 2347 | myadapter->full_model)) { |
| 2348 | printk(KERN_WARNING |
| 2349 | "BusLogic: Release and re-register of " |
| 2350 | "port 0x%04lx failed \n", |
| 2351 | (unsigned long)myadapter->io_addr); |
| 2352 | blogic_destroy_ccbs(myadapter); |
| 2353 | blogic_relres(myadapter); |
| 2354 | list_del(&myadapter->host_list); |
| 2355 | scsi_host_put(host); |
| 2356 | ret = -ENOMEM; |
| 2357 | } else { |
| 2358 | blogic_inithoststruct(myadapter, |
| 2359 | host); |
| 2360 | if (scsi_add_host(host, myadapter->pci_device |
| 2361 | ? &myadapter->pci_device->dev |
| 2362 | : NULL)) { |
| 2363 | printk(KERN_WARNING |
| 2364 | "BusLogic: scsi_add_host()" |
| 2365 | "failed!\n"); |
| 2366 | blogic_destroy_ccbs(myadapter); |
| 2367 | blogic_relres(myadapter); |
| 2368 | list_del(&myadapter->host_list); |
| 2369 | scsi_host_put(host); |
| 2370 | ret = -ENODEV; |
| 2371 | } else { |
| 2372 | scsi_scan_host(host); |
| 2373 | adapter_count++; |
| 2374 | } |
| 2375 | } |
| 2376 | } else { |
| 2377 | /* |
| 2378 | An error occurred during Host Adapter Configuration |
| 2379 | Querying, Host Adapter Configuration, Resource |
| 2380 | Acquisition, CCB Creation, Host Adapter |
| 2381 | Initialization, or Target Device Inquiry, so |
| 2382 | remove Host Adapter from the list of registered |
| 2383 | BusLogic Host Adapters, destroy the CCBs, Release |
| 2384 | the System Resources, and Unregister the SCSI |
| 2385 | Host. |
| 2386 | */ |
| 2387 | blogic_destroy_ccbs(myadapter); |
| 2388 | blogic_relres(myadapter); |
| 2389 | list_del(&myadapter->host_list); |
| 2390 | scsi_host_put(host); |
| 2391 | ret = -ENODEV; |
| 2392 | } |
| 2393 | } |
| 2394 | kfree(adapter); |
| 2395 | kfree(blogic_probeinfo_list); |
| 2396 | blogic_probeinfo_list = NULL; |
| 2397 | return ret; |
| 2398 | } |
| 2399 | |
| 2400 | |
| 2401 | /* |
| 2402 | blogic_deladapter releases all resources previously acquired to |
| 2403 | support a specific Host Adapter, including the I/O Address range, and |
| 2404 | unregisters the BusLogic Host Adapter. |
| 2405 | */ |
| 2406 | |
| 2407 | static int __exit blogic_deladapter(struct blogic_adapter *adapter) |
| 2408 | { |
| 2409 | struct Scsi_Host *host = adapter->scsi_host; |
| 2410 | |
| 2411 | scsi_remove_host(host); |
| 2412 | |
| 2413 | /* |
| 2414 | FlashPoint Host Adapters must first be released by the FlashPoint |
| 2415 | SCCB Manager. |
| 2416 | */ |
| 2417 | if (blogic_flashpoint_type(adapter)) |
| 2418 | FlashPoint_ReleaseHostAdapter(adapter->cardhandle); |
| 2419 | /* |
| 2420 | Destroy the CCBs and release any system resources acquired to |
| 2421 | support Host Adapter. |
| 2422 | */ |
| 2423 | blogic_destroy_ccbs(adapter); |
| 2424 | blogic_relres(adapter); |
| 2425 | /* |
| 2426 | Release usage of the I/O Address range. |
| 2427 | */ |
| 2428 | release_region(adapter->io_addr, adapter->addr_count); |
| 2429 | /* |
| 2430 | Remove Host Adapter from the list of registered BusLogic |
| 2431 | Host Adapters. |
| 2432 | */ |
| 2433 | list_del(&adapter->host_list); |
| 2434 | |
| 2435 | scsi_host_put(host); |
| 2436 | return 0; |
| 2437 | } |
| 2438 | |
| 2439 | |
| 2440 | /* |
| 2441 | blogic_qcompleted_ccb queues CCB for completion processing. |
| 2442 | */ |
| 2443 | |
| 2444 | static void blogic_qcompleted_ccb(struct blogic_ccb *ccb) |
| 2445 | { |
| 2446 | struct blogic_adapter *adapter = ccb->adapter; |
| 2447 | |
| 2448 | ccb->status = BLOGIC_CCB_COMPLETE; |
| 2449 | ccb->next = NULL; |
| 2450 | if (adapter->firstccb == NULL) { |
| 2451 | adapter->firstccb = ccb; |
| 2452 | adapter->lastccb = ccb; |
| 2453 | } else { |
| 2454 | adapter->lastccb->next = ccb; |
| 2455 | adapter->lastccb = ccb; |
| 2456 | } |
| 2457 | adapter->active_cmds[ccb->tgt_id]--; |
| 2458 | } |
| 2459 | |
| 2460 | |
| 2461 | /* |
| 2462 | blogic_resultcode computes a SCSI Subsystem Result Code from |
| 2463 | the Host Adapter Status and Target Device Status. |
| 2464 | */ |
| 2465 | |
| 2466 | static int blogic_resultcode(struct blogic_adapter *adapter, |
| 2467 | enum blogic_adapter_status adapter_status, |
| 2468 | enum blogic_tgt_status tgt_status) |
| 2469 | { |
| 2470 | int hoststatus; |
| 2471 | |
| 2472 | switch (adapter_status) { |
| 2473 | case BLOGIC_CMD_CMPLT_NORMAL: |
| 2474 | case BLOGIC_LINK_CMD_CMPLT: |
| 2475 | case BLOGIC_LINK_CMD_CMPLT_FLAG: |
| 2476 | hoststatus = DID_OK; |
| 2477 | break; |
| 2478 | case BLOGIC_SELECT_TIMEOUT: |
| 2479 | hoststatus = DID_TIME_OUT; |
| 2480 | break; |
| 2481 | case BLOGIC_INVALID_OUTBOX_CODE: |
| 2482 | case BLOGIC_INVALID_CMD_CODE: |
| 2483 | case BLOGIC_BAD_CMD_PARAM: |
| 2484 | blogic_warn("BusLogic Driver Protocol Error 0x%02X\n", |
| 2485 | adapter, adapter_status); |
| 2486 | fallthrough; |
| 2487 | case BLOGIC_DATA_UNDERRUN: |
| 2488 | case BLOGIC_DATA_OVERRUN: |
| 2489 | case BLOGIC_NOEXPECT_BUSFREE: |
| 2490 | case BLOGIC_LINKCCB_BADLUN: |
| 2491 | case BLOGIC_AUTOREQSENSE_FAIL: |
| 2492 | case BLOGIC_TAGQUEUE_REJECT: |
| 2493 | case BLOGIC_BAD_MSG_RCVD: |
| 2494 | case BLOGIC_HW_FAIL: |
| 2495 | case BLOGIC_BAD_RECONNECT: |
| 2496 | case BLOGIC_ABRT_QUEUE: |
| 2497 | case BLOGIC_ADAPTER_SW_ERROR: |
| 2498 | case BLOGIC_HW_TIMEOUT: |
| 2499 | case BLOGIC_PARITY_ERR: |
| 2500 | hoststatus = DID_ERROR; |
| 2501 | break; |
| 2502 | case BLOGIC_INVALID_BUSPHASE: |
| 2503 | case BLOGIC_NORESPONSE_TO_ATN: |
| 2504 | case BLOGIC_HW_RESET: |
| 2505 | case BLOGIC_RST_FROM_OTHERDEV: |
| 2506 | case BLOGIC_HW_BDR: |
| 2507 | hoststatus = DID_RESET; |
| 2508 | break; |
| 2509 | default: |
| 2510 | blogic_warn("Unknown Host Adapter Status 0x%02X\n", adapter, |
| 2511 | adapter_status); |
| 2512 | hoststatus = DID_ERROR; |
| 2513 | break; |
| 2514 | } |
| 2515 | return (hoststatus << 16) | tgt_status; |
| 2516 | } |
| 2517 | |
| 2518 | /* |
| 2519 | * turn the dma address from an inbox into a ccb pointer |
| 2520 | * This is rather inefficient. |
| 2521 | */ |
| 2522 | static struct blogic_ccb * |
| 2523 | blogic_inbox_to_ccb(struct blogic_adapter *adapter, struct blogic_inbox *inbox) |
| 2524 | { |
| 2525 | struct blogic_ccb *ccb; |
| 2526 | |
| 2527 | for (ccb = adapter->all_ccbs; ccb; ccb = ccb->next_all) |
| 2528 | if (inbox->ccb == ccb->dma_handle) |
| 2529 | break; |
| 2530 | |
| 2531 | return ccb; |
| 2532 | } |
| 2533 | |
| 2534 | /* |
| 2535 | blogic_scan_inbox scans the Incoming Mailboxes saving any |
| 2536 | Incoming Mailbox entries for completion processing. |
| 2537 | */ |
| 2538 | static void blogic_scan_inbox(struct blogic_adapter *adapter) |
| 2539 | { |
| 2540 | /* |
| 2541 | Scan through the Incoming Mailboxes in Strict Round Robin |
| 2542 | fashion, saving any completed CCBs for further processing. It |
| 2543 | is essential that for each CCB and SCSI Command issued, command |
| 2544 | completion processing is performed exactly once. Therefore, |
| 2545 | only Incoming Mailboxes with completion code Command Completed |
| 2546 | Without Error, Command Completed With Error, or Command Aborted |
| 2547 | At Host Request are saved for completion processing. When an |
| 2548 | Incoming Mailbox has a completion code of Aborted Command Not |
| 2549 | Found, the CCB had already completed or been aborted before the |
| 2550 | current Abort request was processed, and so completion processing |
| 2551 | has already occurred and no further action should be taken. |
| 2552 | */ |
| 2553 | struct blogic_inbox *next_inbox = adapter->next_inbox; |
| 2554 | enum blogic_cmplt_code comp_code; |
| 2555 | |
| 2556 | while ((comp_code = next_inbox->comp_code) != BLOGIC_INBOX_FREE) { |
| 2557 | struct blogic_ccb *ccb = blogic_inbox_to_ccb(adapter, next_inbox); |
| 2558 | if (!ccb) { |
| 2559 | /* |
| 2560 | * This should never happen, unless the CCB list is |
| 2561 | * corrupted in memory. |
| 2562 | */ |
| 2563 | blogic_warn("Could not find CCB for dma address %x\n", adapter, next_inbox->ccb); |
| 2564 | } else if (comp_code != BLOGIC_CMD_NOTFOUND) { |
| 2565 | if (ccb->status == BLOGIC_CCB_ACTIVE || |
| 2566 | ccb->status == BLOGIC_CCB_RESET) { |
| 2567 | /* |
| 2568 | Save the Completion Code for this CCB and |
| 2569 | queue the CCB for completion processing. |
| 2570 | */ |
| 2571 | ccb->comp_code = comp_code; |
| 2572 | blogic_qcompleted_ccb(ccb); |
| 2573 | } else { |
| 2574 | /* |
| 2575 | If a CCB ever appears in an Incoming Mailbox |
| 2576 | and is not marked as status Active or Reset, |
| 2577 | then there is most likely a bug in |
| 2578 | the Host Adapter firmware. |
| 2579 | */ |
| 2580 | blogic_warn("Illegal CCB #%ld status %d in Incoming Mailbox\n", adapter, ccb->serial, ccb->status); |
| 2581 | } |
| 2582 | } |
| 2583 | next_inbox->comp_code = BLOGIC_INBOX_FREE; |
| 2584 | if (++next_inbox > adapter->last_inbox) |
| 2585 | next_inbox = adapter->first_inbox; |
| 2586 | } |
| 2587 | adapter->next_inbox = next_inbox; |
| 2588 | } |
| 2589 | |
| 2590 | |
| 2591 | /* |
| 2592 | blogic_process_ccbs iterates over the completed CCBs for Host |
| 2593 | Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and |
| 2594 | calling the SCSI Subsystem Completion Routines. The Host Adapter's Lock |
| 2595 | should already have been acquired by the caller. |
| 2596 | */ |
| 2597 | |
| 2598 | static void blogic_process_ccbs(struct blogic_adapter *adapter) |
| 2599 | { |
| 2600 | if (adapter->processing_ccbs) |
| 2601 | return; |
| 2602 | adapter->processing_ccbs = true; |
| 2603 | while (adapter->firstccb != NULL) { |
| 2604 | struct blogic_ccb *ccb = adapter->firstccb; |
| 2605 | struct scsi_cmnd *command = ccb->command; |
| 2606 | adapter->firstccb = ccb->next; |
| 2607 | if (adapter->firstccb == NULL) |
| 2608 | adapter->lastccb = NULL; |
| 2609 | /* |
| 2610 | Process the Completed CCB. |
| 2611 | */ |
| 2612 | if (ccb->opcode == BLOGIC_BDR) { |
| 2613 | int tgt_id = ccb->tgt_id; |
| 2614 | |
| 2615 | blogic_warn("Bus Device Reset CCB #%ld to Target %d Completed\n", adapter, ccb->serial, tgt_id); |
| 2616 | blogic_inc_count(&adapter->tgt_stats[tgt_id].bdr_done); |
| 2617 | adapter->tgt_flags[tgt_id].tagq_active = false; |
| 2618 | adapter->cmds_since_rst[tgt_id] = 0; |
| 2619 | adapter->last_resetdone[tgt_id] = jiffies; |
| 2620 | /* |
| 2621 | Place CCB back on the Host Adapter's free list. |
| 2622 | */ |
| 2623 | blogic_dealloc_ccb(ccb, 1); |
| 2624 | #if 0 /* this needs to be redone different for new EH */ |
| 2625 | /* |
| 2626 | Bus Device Reset CCBs have the command field |
| 2627 | non-NULL only when a Bus Device Reset was requested |
| 2628 | for a command that did not have a currently active |
| 2629 | CCB in the Host Adapter (i.e., a Synchronous Bus |
| 2630 | Device Reset), and hence would not have its |
| 2631 | Completion Routine called otherwise. |
| 2632 | */ |
| 2633 | while (command != NULL) { |
| 2634 | struct scsi_cmnd *nxt_cmd = |
| 2635 | command->reset_chain; |
| 2636 | command->reset_chain = NULL; |
| 2637 | command->result = DID_RESET << 16; |
| 2638 | scsi_done(command); |
| 2639 | command = nxt_cmd; |
| 2640 | } |
| 2641 | #endif |
| 2642 | /* |
| 2643 | Iterate over the CCBs for this Host Adapter |
| 2644 | performing completion processing for any CCBs |
| 2645 | marked as Reset for this Target. |
| 2646 | */ |
| 2647 | for (ccb = adapter->all_ccbs; ccb != NULL; |
| 2648 | ccb = ccb->next_all) |
| 2649 | if (ccb->status == BLOGIC_CCB_RESET && |
| 2650 | ccb->tgt_id == tgt_id) { |
| 2651 | command = ccb->command; |
| 2652 | blogic_dealloc_ccb(ccb, 1); |
| 2653 | adapter->active_cmds[tgt_id]--; |
| 2654 | command->result = DID_RESET << 16; |
| 2655 | scsi_done(command); |
| 2656 | } |
| 2657 | adapter->bdr_pend[tgt_id] = NULL; |
| 2658 | } else { |
| 2659 | /* |
| 2660 | Translate the Completion Code, Host Adapter Status, |
| 2661 | and Target Device Status into a SCSI Subsystem |
| 2662 | Result Code. |
| 2663 | */ |
| 2664 | switch (ccb->comp_code) { |
| 2665 | case BLOGIC_INBOX_FREE: |
| 2666 | case BLOGIC_CMD_NOTFOUND: |
| 2667 | case BLOGIC_INVALID_CCB: |
| 2668 | blogic_warn("CCB #%ld to Target %d Impossible State\n", adapter, ccb->serial, ccb->tgt_id); |
| 2669 | break; |
| 2670 | case BLOGIC_CMD_COMPLETE_GOOD: |
| 2671 | adapter->tgt_stats[ccb->tgt_id] |
| 2672 | .cmds_complete++; |
| 2673 | adapter->tgt_flags[ccb->tgt_id] |
| 2674 | .cmd_good = true; |
| 2675 | command->result = DID_OK << 16; |
| 2676 | break; |
| 2677 | case BLOGIC_CMD_ABORT_BY_HOST: |
| 2678 | blogic_warn("CCB #%ld to Target %d Aborted\n", |
| 2679 | adapter, ccb->serial, ccb->tgt_id); |
| 2680 | blogic_inc_count(&adapter->tgt_stats[ccb->tgt_id].aborts_done); |
| 2681 | command->result = DID_ABORT << 16; |
| 2682 | break; |
| 2683 | case BLOGIC_CMD_COMPLETE_ERROR: |
| 2684 | command->result = blogic_resultcode(adapter, |
| 2685 | ccb->adapter_status, ccb->tgt_status); |
| 2686 | if (ccb->adapter_status != BLOGIC_SELECT_TIMEOUT) { |
| 2687 | adapter->tgt_stats[ccb->tgt_id] |
| 2688 | .cmds_complete++; |
| 2689 | if (blogic_global_options.trace_err) { |
| 2690 | int i; |
| 2691 | blogic_notice("CCB #%ld Target %d: Result %X Host " |
| 2692 | "Adapter Status %02X Target Status %02X\n", adapter, ccb->serial, ccb->tgt_id, command->result, ccb->adapter_status, ccb->tgt_status); |
| 2693 | blogic_notice("CDB ", adapter); |
| 2694 | for (i = 0; i < ccb->cdblen; i++) |
| 2695 | blogic_notice(" %02X", adapter, ccb->cdb[i]); |
| 2696 | blogic_notice("\n", adapter); |
| 2697 | blogic_notice("Sense ", adapter); |
| 2698 | for (i = 0; i < ccb->sense_datalen; i++) |
| 2699 | blogic_notice(" %02X", adapter, command->sense_buffer[i]); |
| 2700 | blogic_notice("\n", adapter); |
| 2701 | } |
| 2702 | } |
| 2703 | break; |
| 2704 | } |
| 2705 | /* |
| 2706 | When an INQUIRY command completes normally, save the |
| 2707 | CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit |
| 2708 | Wide Data Transfers Supported) bits. |
| 2709 | */ |
| 2710 | if (ccb->cdb[0] == INQUIRY && ccb->cdb[1] == 0 && |
| 2711 | ccb->adapter_status == BLOGIC_CMD_CMPLT_NORMAL) { |
| 2712 | struct blogic_tgt_flags *tgt_flags = |
| 2713 | &adapter->tgt_flags[ccb->tgt_id]; |
| 2714 | struct scsi_inquiry *inquiry = |
| 2715 | (struct scsi_inquiry *) scsi_sglist(command); |
| 2716 | tgt_flags->tgt_exists = true; |
| 2717 | tgt_flags->tagq_ok = inquiry->CmdQue; |
| 2718 | tgt_flags->wide_ok = inquiry->WBus16; |
| 2719 | } |
| 2720 | /* |
| 2721 | Place CCB back on the Host Adapter's free list. |
| 2722 | */ |
| 2723 | blogic_dealloc_ccb(ccb, 1); |
| 2724 | /* |
| 2725 | Call the SCSI Command Completion Routine. |
| 2726 | */ |
| 2727 | scsi_done(command); |
| 2728 | } |
| 2729 | } |
| 2730 | adapter->processing_ccbs = false; |
| 2731 | } |
| 2732 | |
| 2733 | |
| 2734 | /* |
| 2735 | blogic_inthandler handles hardware interrupts from BusLogic Host |
| 2736 | Adapters. |
| 2737 | */ |
| 2738 | |
| 2739 | static irqreturn_t blogic_inthandler(int irq_ch, void *devid) |
| 2740 | { |
| 2741 | struct blogic_adapter *adapter = (struct blogic_adapter *) devid; |
| 2742 | unsigned long processor_flag; |
| 2743 | /* |
| 2744 | Acquire exclusive access to Host Adapter. |
| 2745 | */ |
| 2746 | spin_lock_irqsave(adapter->scsi_host->host_lock, processor_flag); |
| 2747 | /* |
| 2748 | Handle Interrupts appropriately for each Host Adapter type. |
| 2749 | */ |
| 2750 | if (blogic_multimaster_type(adapter)) { |
| 2751 | union blogic_int_reg intreg; |
| 2752 | /* |
| 2753 | Read the Host Adapter Interrupt Register. |
| 2754 | */ |
| 2755 | intreg.all = blogic_rdint(adapter); |
| 2756 | if (intreg.ir.int_valid) { |
| 2757 | /* |
| 2758 | Acknowledge the interrupt and reset the Host Adapter |
| 2759 | Interrupt Register. |
| 2760 | */ |
| 2761 | blogic_intreset(adapter); |
| 2762 | /* |
| 2763 | Process valid External SCSI Bus Reset and Incoming |
| 2764 | Mailbox Loaded Interrupts. Command Complete |
| 2765 | Interrupts are noted, and Outgoing Mailbox Available |
| 2766 | Interrupts are ignored, as they are never enabled. |
| 2767 | */ |
| 2768 | if (intreg.ir.ext_busreset) |
| 2769 | adapter->adapter_extreset = true; |
| 2770 | else if (intreg.ir.mailin_loaded) |
| 2771 | blogic_scan_inbox(adapter); |
| 2772 | else if (intreg.ir.cmd_complete) |
| 2773 | adapter->adapter_cmd_complete = true; |
| 2774 | } |
| 2775 | } else { |
| 2776 | /* |
| 2777 | Check if there is a pending interrupt for this Host Adapter. |
| 2778 | */ |
| 2779 | if (FlashPoint_InterruptPending(adapter->cardhandle)) |
| 2780 | switch (FlashPoint_HandleInterrupt(adapter->cardhandle)) { |
| 2781 | case FPOINT_NORMAL_INT: |
| 2782 | break; |
| 2783 | case FPOINT_EXT_RESET: |
| 2784 | adapter->adapter_extreset = true; |
| 2785 | break; |
| 2786 | case FPOINT_INTERN_ERR: |
| 2787 | blogic_warn("Internal FlashPoint Error detected - Resetting Host Adapter\n", adapter); |
| 2788 | adapter->adapter_intern_err = true; |
| 2789 | break; |
| 2790 | } |
| 2791 | } |
| 2792 | /* |
| 2793 | Process any completed CCBs. |
| 2794 | */ |
| 2795 | if (adapter->firstccb != NULL) |
| 2796 | blogic_process_ccbs(adapter); |
| 2797 | /* |
| 2798 | Reset the Host Adapter if requested. |
| 2799 | */ |
| 2800 | if (adapter->adapter_extreset) { |
| 2801 | blogic_warn("Resetting %s due to External SCSI Bus Reset\n", adapter, adapter->full_model); |
| 2802 | blogic_inc_count(&adapter->ext_resets); |
| 2803 | blogic_resetadapter(adapter, false); |
| 2804 | adapter->adapter_extreset = false; |
| 2805 | } else if (adapter->adapter_intern_err) { |
| 2806 | blogic_warn("Resetting %s due to Host Adapter Internal Error\n", adapter, adapter->full_model); |
| 2807 | blogic_inc_count(&adapter->adapter_intern_errors); |
| 2808 | blogic_resetadapter(adapter, true); |
| 2809 | adapter->adapter_intern_err = false; |
| 2810 | } |
| 2811 | /* |
| 2812 | Release exclusive access to Host Adapter. |
| 2813 | */ |
| 2814 | spin_unlock_irqrestore(adapter->scsi_host->host_lock, processor_flag); |
| 2815 | return IRQ_HANDLED; |
| 2816 | } |
| 2817 | |
| 2818 | |
| 2819 | /* |
| 2820 | blogic_write_outbox places CCB and Action Code into an Outgoing |
| 2821 | Mailbox for execution by Host Adapter. The Host Adapter's Lock should |
| 2822 | already have been acquired by the caller. |
| 2823 | */ |
| 2824 | |
| 2825 | static bool blogic_write_outbox(struct blogic_adapter *adapter, |
| 2826 | enum blogic_action action, struct blogic_ccb *ccb) |
| 2827 | { |
| 2828 | struct blogic_outbox *next_outbox; |
| 2829 | |
| 2830 | next_outbox = adapter->next_outbox; |
| 2831 | if (next_outbox->action == BLOGIC_OUTBOX_FREE) { |
| 2832 | ccb->status = BLOGIC_CCB_ACTIVE; |
| 2833 | /* |
| 2834 | The CCB field must be written before the Action Code field |
| 2835 | since the Host Adapter is operating asynchronously and the |
| 2836 | locking code does not protect against simultaneous access |
| 2837 | by the Host Adapter. |
| 2838 | */ |
| 2839 | next_outbox->ccb = ccb->dma_handle; |
| 2840 | next_outbox->action = action; |
| 2841 | blogic_execmbox(adapter); |
| 2842 | if (++next_outbox > adapter->last_outbox) |
| 2843 | next_outbox = adapter->first_outbox; |
| 2844 | adapter->next_outbox = next_outbox; |
| 2845 | if (action == BLOGIC_MBOX_START) { |
| 2846 | adapter->active_cmds[ccb->tgt_id]++; |
| 2847 | if (ccb->opcode != BLOGIC_BDR) |
| 2848 | adapter->tgt_stats[ccb->tgt_id].cmds_tried++; |
| 2849 | } |
| 2850 | return true; |
| 2851 | } |
| 2852 | return false; |
| 2853 | } |
| 2854 | |
| 2855 | /* Error Handling (EH) support */ |
| 2856 | |
| 2857 | static int blogic_hostreset(struct scsi_cmnd *SCpnt) |
| 2858 | { |
| 2859 | struct blogic_adapter *adapter = |
| 2860 | (struct blogic_adapter *) SCpnt->device->host->hostdata; |
| 2861 | |
| 2862 | unsigned int id = SCpnt->device->id; |
| 2863 | struct blogic_tgt_stats *stats = &adapter->tgt_stats[id]; |
| 2864 | int rc; |
| 2865 | |
| 2866 | spin_lock_irq(SCpnt->device->host->host_lock); |
| 2867 | |
| 2868 | blogic_inc_count(&stats->adapter_reset_req); |
| 2869 | |
| 2870 | rc = blogic_resetadapter(adapter, false); |
| 2871 | spin_unlock_irq(SCpnt->device->host->host_lock); |
| 2872 | return rc; |
| 2873 | } |
| 2874 | |
| 2875 | /* |
| 2876 | blogic_qcmd creates a CCB for Command and places it into an |
| 2877 | Outgoing Mailbox for execution by the associated Host Adapter. |
| 2878 | */ |
| 2879 | |
| 2880 | static int blogic_qcmd_lck(struct scsi_cmnd *command) |
| 2881 | { |
| 2882 | void (*comp_cb)(struct scsi_cmnd *) = scsi_done; |
| 2883 | struct blogic_adapter *adapter = |
| 2884 | (struct blogic_adapter *) command->device->host->hostdata; |
| 2885 | struct blogic_tgt_flags *tgt_flags = |
| 2886 | &adapter->tgt_flags[command->device->id]; |
| 2887 | struct blogic_tgt_stats *tgt_stats = adapter->tgt_stats; |
| 2888 | unsigned char *cdb = command->cmnd; |
| 2889 | int cdblen = command->cmd_len; |
| 2890 | int tgt_id = command->device->id; |
| 2891 | int lun = command->device->lun; |
| 2892 | int buflen = scsi_bufflen(command); |
| 2893 | int count; |
| 2894 | struct blogic_ccb *ccb; |
| 2895 | dma_addr_t sense_buf; |
| 2896 | |
| 2897 | /* |
| 2898 | SCSI REQUEST_SENSE commands will be executed automatically by the |
| 2899 | Host Adapter for any errors, so they should not be executed |
| 2900 | explicitly unless the Sense Data is zero indicating that no error |
| 2901 | occurred. |
| 2902 | */ |
| 2903 | if (cdb[0] == REQUEST_SENSE && command->sense_buffer[0] != 0) { |
| 2904 | command->result = DID_OK << 16; |
| 2905 | comp_cb(command); |
| 2906 | return 0; |
| 2907 | } |
| 2908 | /* |
| 2909 | Allocate a CCB from the Host Adapter's free list. In the unlikely |
| 2910 | event that there are none available and memory allocation fails, |
| 2911 | wait 1 second and try again. If that fails, the Host Adapter is |
| 2912 | probably hung so signal an error as a Host Adapter Hard Reset |
| 2913 | should be initiated soon. |
| 2914 | */ |
| 2915 | ccb = blogic_alloc_ccb(adapter); |
| 2916 | if (ccb == NULL) { |
| 2917 | spin_unlock_irq(adapter->scsi_host->host_lock); |
| 2918 | blogic_delay(1); |
| 2919 | spin_lock_irq(adapter->scsi_host->host_lock); |
| 2920 | ccb = blogic_alloc_ccb(adapter); |
| 2921 | if (ccb == NULL) { |
| 2922 | command->result = DID_ERROR << 16; |
| 2923 | comp_cb(command); |
| 2924 | return 0; |
| 2925 | } |
| 2926 | } |
| 2927 | |
| 2928 | /* |
| 2929 | Initialize the fields in the BusLogic Command Control Block (CCB). |
| 2930 | */ |
| 2931 | count = scsi_dma_map(command); |
| 2932 | BUG_ON(count < 0); |
| 2933 | if (count) { |
| 2934 | struct scatterlist *sg; |
| 2935 | int i; |
| 2936 | |
| 2937 | ccb->opcode = BLOGIC_INITIATOR_CCB_SG; |
| 2938 | ccb->datalen = count * sizeof(struct blogic_sg_seg); |
| 2939 | if (blogic_multimaster_type(adapter)) |
| 2940 | ccb->data = (unsigned int) ccb->dma_handle + |
| 2941 | ((unsigned long) &ccb->sglist - |
| 2942 | (unsigned long) ccb); |
| 2943 | else |
| 2944 | ccb->data = virt_to_32bit_virt(ccb->sglist); |
| 2945 | |
| 2946 | scsi_for_each_sg(command, sg, count, i) { |
| 2947 | ccb->sglist[i].segbytes = sg_dma_len(sg); |
| 2948 | ccb->sglist[i].segdata = sg_dma_address(sg); |
| 2949 | } |
| 2950 | } else if (!count) { |
| 2951 | ccb->opcode = BLOGIC_INITIATOR_CCB; |
| 2952 | ccb->datalen = buflen; |
| 2953 | ccb->data = 0; |
| 2954 | } |
| 2955 | |
| 2956 | switch (cdb[0]) { |
| 2957 | case READ_6: |
| 2958 | case READ_10: |
| 2959 | ccb->datadir = BLOGIC_DATAIN_CHECKED; |
| 2960 | tgt_stats[tgt_id].read_cmds++; |
| 2961 | blogic_addcount(&tgt_stats[tgt_id].bytesread, buflen); |
| 2962 | blogic_incszbucket(tgt_stats[tgt_id].read_sz_buckets, buflen); |
| 2963 | break; |
| 2964 | case WRITE_6: |
| 2965 | case WRITE_10: |
| 2966 | ccb->datadir = BLOGIC_DATAOUT_CHECKED; |
| 2967 | tgt_stats[tgt_id].write_cmds++; |
| 2968 | blogic_addcount(&tgt_stats[tgt_id].byteswritten, buflen); |
| 2969 | blogic_incszbucket(tgt_stats[tgt_id].write_sz_buckets, buflen); |
| 2970 | break; |
| 2971 | default: |
| 2972 | ccb->datadir = BLOGIC_UNCHECKED_TX; |
| 2973 | break; |
| 2974 | } |
| 2975 | ccb->cdblen = cdblen; |
| 2976 | ccb->adapter_status = 0; |
| 2977 | ccb->tgt_status = 0; |
| 2978 | ccb->tgt_id = tgt_id; |
| 2979 | ccb->lun = lun; |
| 2980 | ccb->tag_enable = false; |
| 2981 | ccb->legacytag_enable = false; |
| 2982 | /* |
| 2983 | BusLogic recommends that after a Reset the first couple of |
| 2984 | commands that are sent to a Target Device be sent in a non |
| 2985 | Tagged Queue fashion so that the Host Adapter and Target Device |
| 2986 | can establish Synchronous and Wide Transfer before Queue Tag |
| 2987 | messages can interfere with the Synchronous and Wide Negotiation |
| 2988 | messages. By waiting to enable Tagged Queuing until after the |
| 2989 | first BLOGIC_MAX_TAG_DEPTH commands have been queued, it is |
| 2990 | assured that after a Reset any pending commands are requeued |
| 2991 | before Tagged Queuing is enabled and that the Tagged Queuing |
| 2992 | message will not occur while the partition table is being printed. |
| 2993 | In addition, some devices do not properly handle the transition |
| 2994 | from non-tagged to tagged commands, so it is necessary to wait |
| 2995 | until there are no pending commands for a target device |
| 2996 | before queuing tagged commands. |
| 2997 | */ |
| 2998 | if (adapter->cmds_since_rst[tgt_id]++ >= BLOGIC_MAX_TAG_DEPTH && |
| 2999 | !tgt_flags->tagq_active && |
| 3000 | adapter->active_cmds[tgt_id] == 0 |
| 3001 | && tgt_flags->tagq_ok && |
| 3002 | (adapter->tagq_ok & (1 << tgt_id))) { |
| 3003 | tgt_flags->tagq_active = true; |
| 3004 | blogic_notice("Tagged Queuing now active for Target %d\n", |
| 3005 | adapter, tgt_id); |
| 3006 | } |
| 3007 | if (tgt_flags->tagq_active) { |
| 3008 | enum blogic_queuetag queuetag = BLOGIC_SIMPLETAG; |
| 3009 | /* |
| 3010 | When using Tagged Queuing with Simple Queue Tags, it |
| 3011 | appears that disk drive controllers do not guarantee that |
| 3012 | a queued command will not remain in a disconnected state |
| 3013 | indefinitely if commands that read or write nearer the |
| 3014 | head position continue to arrive without interruption. |
| 3015 | Therefore, for each Target Device this driver keeps track |
| 3016 | of the last time either the queue was empty or an Ordered |
| 3017 | Queue Tag was issued. If more than 4 seconds (one fifth |
| 3018 | of the 20 second disk timeout) have elapsed since this |
| 3019 | last sequence point, this command will be issued with an |
| 3020 | Ordered Queue Tag rather than a Simple Queue Tag, which |
| 3021 | forces the Target Device to complete all previously |
| 3022 | queued commands before this command may be executed. |
| 3023 | */ |
| 3024 | if (adapter->active_cmds[tgt_id] == 0) |
| 3025 | adapter->last_seqpoint[tgt_id] = jiffies; |
| 3026 | else if (time_after(jiffies, |
| 3027 | adapter->last_seqpoint[tgt_id] + 4 * HZ)) { |
| 3028 | adapter->last_seqpoint[tgt_id] = jiffies; |
| 3029 | queuetag = BLOGIC_ORDEREDTAG; |
| 3030 | } |
| 3031 | if (adapter->ext_lun) { |
| 3032 | ccb->tag_enable = true; |
| 3033 | ccb->queuetag = queuetag; |
| 3034 | } else { |
| 3035 | ccb->legacytag_enable = true; |
| 3036 | ccb->legacy_tag = queuetag; |
| 3037 | } |
| 3038 | } |
| 3039 | memcpy(ccb->cdb, cdb, cdblen); |
| 3040 | ccb->sense_datalen = SCSI_SENSE_BUFFERSIZE; |
| 3041 | ccb->command = command; |
| 3042 | sense_buf = dma_map_single(&adapter->pci_device->dev, |
| 3043 | command->sense_buffer, ccb->sense_datalen, |
| 3044 | DMA_FROM_DEVICE); |
| 3045 | if (dma_mapping_error(&adapter->pci_device->dev, sense_buf)) { |
| 3046 | blogic_err("DMA mapping for sense data buffer failed\n", |
| 3047 | adapter); |
| 3048 | blogic_dealloc_ccb(ccb, 0); |
| 3049 | return SCSI_MLQUEUE_HOST_BUSY; |
| 3050 | } |
| 3051 | ccb->sensedata = sense_buf; |
| 3052 | if (blogic_multimaster_type(adapter)) { |
| 3053 | /* |
| 3054 | Place the CCB in an Outgoing Mailbox. The higher levels |
| 3055 | of the SCSI Subsystem should not attempt to queue more |
| 3056 | commands than can be placed in Outgoing Mailboxes, so |
| 3057 | there should always be one free. In the unlikely event |
| 3058 | that there are none available, wait 1 second and try |
| 3059 | again. If that fails, the Host Adapter is probably hung |
| 3060 | so signal an error as a Host Adapter Hard Reset should |
| 3061 | be initiated soon. |
| 3062 | */ |
| 3063 | if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, ccb)) { |
| 3064 | spin_unlock_irq(adapter->scsi_host->host_lock); |
| 3065 | blogic_warn("Unable to write Outgoing Mailbox - Pausing for 1 second\n", adapter); |
| 3066 | blogic_delay(1); |
| 3067 | spin_lock_irq(adapter->scsi_host->host_lock); |
| 3068 | if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, |
| 3069 | ccb)) { |
| 3070 | blogic_warn("Still unable to write Outgoing Mailbox - Host Adapter Dead?\n", adapter); |
| 3071 | blogic_dealloc_ccb(ccb, 1); |
| 3072 | command->result = DID_ERROR << 16; |
| 3073 | scsi_done(command); |
| 3074 | } |
| 3075 | } |
| 3076 | } else { |
| 3077 | /* |
| 3078 | Call the FlashPoint SCCB Manager to start execution of |
| 3079 | the CCB. |
| 3080 | */ |
| 3081 | ccb->status = BLOGIC_CCB_ACTIVE; |
| 3082 | adapter->active_cmds[tgt_id]++; |
| 3083 | tgt_stats[tgt_id].cmds_tried++; |
| 3084 | FlashPoint_StartCCB(adapter->cardhandle, ccb); |
| 3085 | /* |
| 3086 | The Command may have already completed and |
| 3087 | blogic_qcompleted_ccb been called, or it may still be |
| 3088 | pending. |
| 3089 | */ |
| 3090 | if (ccb->status == BLOGIC_CCB_COMPLETE) |
| 3091 | blogic_process_ccbs(adapter); |
| 3092 | } |
| 3093 | return 0; |
| 3094 | } |
| 3095 | |
| 3096 | static DEF_SCSI_QCMD(blogic_qcmd) |
| 3097 | |
| 3098 | #if 0 |
| 3099 | /* |
| 3100 | blogic_abort aborts Command if possible. |
| 3101 | */ |
| 3102 | |
| 3103 | static int blogic_abort(struct scsi_cmnd *command) |
| 3104 | { |
| 3105 | struct blogic_adapter *adapter = |
| 3106 | (struct blogic_adapter *) command->device->host->hostdata; |
| 3107 | |
| 3108 | int tgt_id = command->device->id; |
| 3109 | struct blogic_ccb *ccb; |
| 3110 | blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_request); |
| 3111 | |
| 3112 | /* |
| 3113 | Attempt to find an Active CCB for this Command. If no Active |
| 3114 | CCB for this Command is found, then no Abort is necessary. |
| 3115 | */ |
| 3116 | for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all) |
| 3117 | if (ccb->command == command) |
| 3118 | break; |
| 3119 | if (ccb == NULL) { |
| 3120 | blogic_warn("Unable to Abort Command to Target %d - No CCB Found\n", adapter, tgt_id); |
| 3121 | return SUCCESS; |
| 3122 | } else if (ccb->status == BLOGIC_CCB_COMPLETE) { |
| 3123 | blogic_warn("Unable to Abort Command to Target %d - CCB Completed\n", adapter, tgt_id); |
| 3124 | return SUCCESS; |
| 3125 | } else if (ccb->status == BLOGIC_CCB_RESET) { |
| 3126 | blogic_warn("Unable to Abort Command to Target %d - CCB Reset\n", adapter, tgt_id); |
| 3127 | return SUCCESS; |
| 3128 | } |
| 3129 | if (blogic_multimaster_type(adapter)) { |
| 3130 | /* |
| 3131 | Attempt to Abort this CCB. MultiMaster Firmware versions |
| 3132 | prior to 5.xx do not generate Abort Tag messages, but only |
| 3133 | generate the non-tagged Abort message. Since non-tagged |
| 3134 | commands are not sent by the Host Adapter until the queue |
| 3135 | of outstanding tagged commands has completed, and the |
| 3136 | Abort message is treated as a non-tagged command, it is |
| 3137 | effectively impossible to abort commands when Tagged |
| 3138 | Queuing is active. Firmware version 5.xx does generate |
| 3139 | Abort Tag messages, so it is possible to abort commands |
| 3140 | when Tagged Queuing is active. |
| 3141 | */ |
| 3142 | if (adapter->tgt_flags[tgt_id].tagq_active && |
| 3143 | adapter->fw_ver[0] < '5') { |
| 3144 | blogic_warn("Unable to Abort CCB #%ld to Target %d - Abort Tag Not Supported\n", adapter, ccb->serial, tgt_id); |
| 3145 | return FAILURE; |
| 3146 | } else if (blogic_write_outbox(adapter, BLOGIC_MBOX_ABORT, |
| 3147 | ccb)) { |
| 3148 | blogic_warn("Aborting CCB #%ld to Target %d\n", |
| 3149 | adapter, ccb->serial, tgt_id); |
| 3150 | blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried); |
| 3151 | return SUCCESS; |
| 3152 | } else { |
| 3153 | blogic_warn("Unable to Abort CCB #%ld to Target %d - No Outgoing Mailboxes\n", adapter, ccb->serial, tgt_id); |
| 3154 | return FAILURE; |
| 3155 | } |
| 3156 | } else { |
| 3157 | /* |
| 3158 | Call the FlashPoint SCCB Manager to abort execution of |
| 3159 | the CCB. |
| 3160 | */ |
| 3161 | blogic_warn("Aborting CCB #%ld to Target %d\n", adapter, |
| 3162 | ccb->serial, tgt_id); |
| 3163 | blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried); |
| 3164 | FlashPoint_AbortCCB(adapter->cardhandle, ccb); |
| 3165 | /* |
| 3166 | The Abort may have already been completed and |
| 3167 | blogic_qcompleted_ccb been called, or it |
| 3168 | may still be pending. |
| 3169 | */ |
| 3170 | if (ccb->status == BLOGIC_CCB_COMPLETE) |
| 3171 | blogic_process_ccbs(adapter); |
| 3172 | return SUCCESS; |
| 3173 | } |
| 3174 | return SUCCESS; |
| 3175 | } |
| 3176 | |
| 3177 | #endif |
| 3178 | /* |
| 3179 | blogic_resetadapter resets Host Adapter if possible, marking all |
| 3180 | currently executing SCSI Commands as having been Reset. |
| 3181 | */ |
| 3182 | |
| 3183 | static int blogic_resetadapter(struct blogic_adapter *adapter, bool hard_reset) |
| 3184 | { |
| 3185 | struct blogic_ccb *ccb; |
| 3186 | int tgt_id; |
| 3187 | |
| 3188 | /* |
| 3189 | * Attempt to Reset and Reinitialize the Host Adapter. |
| 3190 | */ |
| 3191 | |
| 3192 | if (!(blogic_hwreset(adapter, hard_reset) && |
| 3193 | blogic_initadapter(adapter))) { |
| 3194 | blogic_err("Resetting %s Failed\n", adapter, |
| 3195 | adapter->full_model); |
| 3196 | return FAILURE; |
| 3197 | } |
| 3198 | |
| 3199 | /* |
| 3200 | * Deallocate all currently executing CCBs. |
| 3201 | */ |
| 3202 | |
| 3203 | for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all) |
| 3204 | if (ccb->status == BLOGIC_CCB_ACTIVE) |
| 3205 | blogic_dealloc_ccb(ccb, 1); |
| 3206 | /* |
| 3207 | * Wait a few seconds between the Host Adapter Hard Reset which |
| 3208 | * initiates a SCSI Bus Reset and issuing any SCSI Commands. Some |
| 3209 | * SCSI devices get confused if they receive SCSI Commands too soon |
| 3210 | * after a SCSI Bus Reset. |
| 3211 | */ |
| 3212 | |
| 3213 | if (hard_reset) { |
| 3214 | spin_unlock_irq(adapter->scsi_host->host_lock); |
| 3215 | blogic_delay(adapter->bus_settle_time); |
| 3216 | spin_lock_irq(adapter->scsi_host->host_lock); |
| 3217 | } |
| 3218 | |
| 3219 | for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) { |
| 3220 | adapter->last_resettried[tgt_id] = jiffies; |
| 3221 | adapter->last_resetdone[tgt_id] = jiffies; |
| 3222 | } |
| 3223 | return SUCCESS; |
| 3224 | } |
| 3225 | |
| 3226 | /* |
| 3227 | blogic_diskparam returns the Heads/Sectors/Cylinders BIOS Disk |
| 3228 | Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and |
| 3229 | the appropriate number of cylinders so as not to exceed drive capacity. In |
| 3230 | order for disks equal to or larger than 1 GB to be addressable by the BIOS |
| 3231 | without exceeding the BIOS limitation of 1024 cylinders, Extended Translation |
| 3232 | may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C" |
| 3233 | series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A" |
| 3234 | series MultiMaster Host Adapters. With Extended Translation enabled, drives |
| 3235 | between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128 |
| 3236 | heads and 32 sectors, and drives above 2 GB inclusive are given a disk |
| 3237 | geometry of 255 heads and 63 sectors. However, if the BIOS detects that the |
| 3238 | Extended Translation setting does not match the geometry in the partition |
| 3239 | table, then the translation inferred from the partition table will be used by |
| 3240 | the BIOS, and a warning may be displayed. |
| 3241 | */ |
| 3242 | |
| 3243 | static int blogic_diskparam(struct scsi_device *sdev, struct block_device *dev, |
| 3244 | sector_t capacity, int *params) |
| 3245 | { |
| 3246 | struct blogic_adapter *adapter = |
| 3247 | (struct blogic_adapter *) sdev->host->hostdata; |
| 3248 | struct bios_diskparam *diskparam = (struct bios_diskparam *) params; |
| 3249 | unsigned char *buf; |
| 3250 | |
| 3251 | if (adapter->ext_trans_enable && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */) { |
| 3252 | if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */) { |
| 3253 | diskparam->heads = 255; |
| 3254 | diskparam->sectors = 63; |
| 3255 | } else { |
| 3256 | diskparam->heads = 128; |
| 3257 | diskparam->sectors = 32; |
| 3258 | } |
| 3259 | } else { |
| 3260 | diskparam->heads = 64; |
| 3261 | diskparam->sectors = 32; |
| 3262 | } |
| 3263 | diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors); |
| 3264 | buf = scsi_bios_ptable(dev); |
| 3265 | if (buf == NULL) |
| 3266 | return 0; |
| 3267 | /* |
| 3268 | If the boot sector partition table flag is valid, search for |
| 3269 | a partition table entry whose end_head matches one of the |
| 3270 | standard BusLogic geometry translations (64/32, 128/32, or 255/63). |
| 3271 | */ |
| 3272 | if (*(unsigned short *) (buf + 64) == MSDOS_LABEL_MAGIC) { |
| 3273 | struct msdos_partition *part1_entry = |
| 3274 | (struct msdos_partition *)buf; |
| 3275 | struct msdos_partition *part_entry = part1_entry; |
| 3276 | int saved_cyl = diskparam->cylinders, part_no; |
| 3277 | unsigned char part_end_head = 0, part_end_sector = 0; |
| 3278 | |
| 3279 | for (part_no = 0; part_no < 4; part_no++) { |
| 3280 | part_end_head = part_entry->end_head; |
| 3281 | part_end_sector = part_entry->end_sector & 0x3F; |
| 3282 | if (part_end_head == 64 - 1) { |
| 3283 | diskparam->heads = 64; |
| 3284 | diskparam->sectors = 32; |
| 3285 | break; |
| 3286 | } else if (part_end_head == 128 - 1) { |
| 3287 | diskparam->heads = 128; |
| 3288 | diskparam->sectors = 32; |
| 3289 | break; |
| 3290 | } else if (part_end_head == 255 - 1) { |
| 3291 | diskparam->heads = 255; |
| 3292 | diskparam->sectors = 63; |
| 3293 | break; |
| 3294 | } |
| 3295 | part_entry++; |
| 3296 | } |
| 3297 | if (part_no == 4) { |
| 3298 | part_end_head = part1_entry->end_head; |
| 3299 | part_end_sector = part1_entry->end_sector & 0x3F; |
| 3300 | } |
| 3301 | diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors); |
| 3302 | if (part_no < 4 && part_end_sector == diskparam->sectors) { |
| 3303 | if (diskparam->cylinders != saved_cyl) |
| 3304 | blogic_warn("Adopting Geometry %d/%d from Partition Table\n", adapter, diskparam->heads, diskparam->sectors); |
| 3305 | } else if (part_end_head > 0 || part_end_sector > 0) { |
| 3306 | blogic_warn("Warning: Partition Table appears to have Geometry %d/%d which is\n", adapter, part_end_head + 1, part_end_sector); |
| 3307 | blogic_warn("not compatible with current BusLogic Host Adapter Geometry %d/%d\n", adapter, diskparam->heads, diskparam->sectors); |
| 3308 | } |
| 3309 | } |
| 3310 | kfree(buf); |
| 3311 | return 0; |
| 3312 | } |
| 3313 | |
| 3314 | |
| 3315 | /* |
| 3316 | BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>. |
| 3317 | */ |
| 3318 | |
| 3319 | static int blogic_write_info(struct Scsi_Host *shost, char *procbuf, |
| 3320 | int bytes_avail) |
| 3321 | { |
| 3322 | struct blogic_adapter *adapter = |
| 3323 | (struct blogic_adapter *) shost->hostdata; |
| 3324 | struct blogic_tgt_stats *tgt_stats; |
| 3325 | |
| 3326 | tgt_stats = adapter->tgt_stats; |
| 3327 | adapter->ext_resets = 0; |
| 3328 | adapter->adapter_intern_errors = 0; |
| 3329 | memset(tgt_stats, 0, BLOGIC_MAXDEV * sizeof(struct blogic_tgt_stats)); |
| 3330 | return 0; |
| 3331 | } |
| 3332 | |
| 3333 | static int blogic_show_info(struct seq_file *m, struct Scsi_Host *shost) |
| 3334 | { |
| 3335 | struct blogic_adapter *adapter = (struct blogic_adapter *) shost->hostdata; |
| 3336 | struct blogic_tgt_stats *tgt_stats; |
| 3337 | int tgt; |
| 3338 | |
| 3339 | tgt_stats = adapter->tgt_stats; |
| 3340 | seq_write(m, adapter->msgbuf, adapter->msgbuflen); |
| 3341 | seq_printf(m, "\n\ |
| 3342 | Current Driver Queue Depth: %d\n\ |
| 3343 | Currently Allocated CCBs: %d\n", adapter->drvr_qdepth, adapter->alloc_ccbs); |
| 3344 | seq_puts(m, "\n\n\ |
| 3345 | DATA TRANSFER STATISTICS\n\ |
| 3346 | \n\ |
| 3347 | Target Tagged Queuing Queue Depth Active Attempted Completed\n\ |
| 3348 | ====== ============== =========== ====== ========= =========\n"); |
| 3349 | for (tgt = 0; tgt < adapter->maxdev; tgt++) { |
| 3350 | struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt]; |
| 3351 | if (!tgt_flags->tgt_exists) |
| 3352 | continue; |
| 3353 | seq_printf(m, " %2d %s", tgt, (tgt_flags->tagq_ok ? (tgt_flags->tagq_active ? " Active" : (adapter->tagq_ok & (1 << tgt) |
| 3354 | ? " Permitted" : " Disabled")) |
| 3355 | : "Not Supported")); |
| 3356 | seq_printf(m, |
| 3357 | " %3d %3u %9u %9u\n", adapter->qdepth[tgt], adapter->active_cmds[tgt], tgt_stats[tgt].cmds_tried, tgt_stats[tgt].cmds_complete); |
| 3358 | } |
| 3359 | seq_puts(m, "\n\ |
| 3360 | Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\ |
| 3361 | ====== ============= ============== =================== ===================\n"); |
| 3362 | for (tgt = 0; tgt < adapter->maxdev; tgt++) { |
| 3363 | struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt]; |
| 3364 | if (!tgt_flags->tgt_exists) |
| 3365 | continue; |
| 3366 | seq_printf(m, " %2d %9u %9u", tgt, tgt_stats[tgt].read_cmds, tgt_stats[tgt].write_cmds); |
| 3367 | if (tgt_stats[tgt].bytesread.billions > 0) |
| 3368 | seq_printf(m, " %9u%09u", tgt_stats[tgt].bytesread.billions, tgt_stats[tgt].bytesread.units); |
| 3369 | else |
| 3370 | seq_printf(m, " %9u", tgt_stats[tgt].bytesread.units); |
| 3371 | if (tgt_stats[tgt].byteswritten.billions > 0) |
| 3372 | seq_printf(m, " %9u%09u\n", tgt_stats[tgt].byteswritten.billions, tgt_stats[tgt].byteswritten.units); |
| 3373 | else |
| 3374 | seq_printf(m, " %9u\n", tgt_stats[tgt].byteswritten.units); |
| 3375 | } |
| 3376 | seq_puts(m, "\n\ |
| 3377 | Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\ |
| 3378 | ====== ======= ========= ========= ========= ========= =========\n"); |
| 3379 | for (tgt = 0; tgt < adapter->maxdev; tgt++) { |
| 3380 | struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt]; |
| 3381 | if (!tgt_flags->tgt_exists) |
| 3382 | continue; |
| 3383 | seq_printf(m, |
| 3384 | " %2d Read %9u %9u %9u %9u %9u\n", tgt, |
| 3385 | tgt_stats[tgt].read_sz_buckets[0], |
| 3386 | tgt_stats[tgt].read_sz_buckets[1], tgt_stats[tgt].read_sz_buckets[2], tgt_stats[tgt].read_sz_buckets[3], tgt_stats[tgt].read_sz_buckets[4]); |
| 3387 | seq_printf(m, |
| 3388 | " %2d Write %9u %9u %9u %9u %9u\n", tgt, |
| 3389 | tgt_stats[tgt].write_sz_buckets[0], |
| 3390 | tgt_stats[tgt].write_sz_buckets[1], tgt_stats[tgt].write_sz_buckets[2], tgt_stats[tgt].write_sz_buckets[3], tgt_stats[tgt].write_sz_buckets[4]); |
| 3391 | } |
| 3392 | seq_puts(m, "\n\ |
| 3393 | Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\ |
| 3394 | ====== ======= ========= ========= ========= ========= =========\n"); |
| 3395 | for (tgt = 0; tgt < adapter->maxdev; tgt++) { |
| 3396 | struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt]; |
| 3397 | if (!tgt_flags->tgt_exists) |
| 3398 | continue; |
| 3399 | seq_printf(m, |
| 3400 | " %2d Read %9u %9u %9u %9u %9u\n", tgt, |
| 3401 | tgt_stats[tgt].read_sz_buckets[5], |
| 3402 | tgt_stats[tgt].read_sz_buckets[6], tgt_stats[tgt].read_sz_buckets[7], tgt_stats[tgt].read_sz_buckets[8], tgt_stats[tgt].read_sz_buckets[9]); |
| 3403 | seq_printf(m, |
| 3404 | " %2d Write %9u %9u %9u %9u %9u\n", tgt, |
| 3405 | tgt_stats[tgt].write_sz_buckets[5], |
| 3406 | tgt_stats[tgt].write_sz_buckets[6], tgt_stats[tgt].write_sz_buckets[7], tgt_stats[tgt].write_sz_buckets[8], tgt_stats[tgt].write_sz_buckets[9]); |
| 3407 | } |
| 3408 | seq_puts(m, "\n\n\ |
| 3409 | ERROR RECOVERY STATISTICS\n\ |
| 3410 | \n\ |
| 3411 | Command Aborts Bus Device Resets Host Adapter Resets\n\ |
| 3412 | Target Requested Completed Requested Completed Requested Completed\n\ |
| 3413 | ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\ |
| 3414 | ====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n"); |
| 3415 | for (tgt = 0; tgt < adapter->maxdev; tgt++) { |
| 3416 | struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt]; |
| 3417 | if (!tgt_flags->tgt_exists) |
| 3418 | continue; |
| 3419 | seq_printf(m, " %2d %5d %5d %5d %5d %5d %5d %5d %5d %5d\n", |
| 3420 | tgt, tgt_stats[tgt].aborts_request, |
| 3421 | tgt_stats[tgt].aborts_tried, |
| 3422 | tgt_stats[tgt].aborts_done, |
| 3423 | tgt_stats[tgt].bdr_request, |
| 3424 | tgt_stats[tgt].bdr_tried, |
| 3425 | tgt_stats[tgt].bdr_done, |
| 3426 | tgt_stats[tgt].adapter_reset_req, |
| 3427 | tgt_stats[tgt].adapter_reset_attempt, |
| 3428 | tgt_stats[tgt].adapter_reset_done); |
| 3429 | } |
| 3430 | seq_printf(m, "\nExternal Host Adapter Resets: %d\n", adapter->ext_resets); |
| 3431 | seq_printf(m, "Host Adapter Internal Errors: %d\n", adapter->adapter_intern_errors); |
| 3432 | return 0; |
| 3433 | } |
| 3434 | |
| 3435 | |
| 3436 | /* |
| 3437 | blogic_msg prints Driver Messages. |
| 3438 | */ |
| 3439 | __printf(2, 4) |
| 3440 | static void blogic_msg(enum blogic_msglevel msglevel, char *fmt, |
| 3441 | struct blogic_adapter *adapter, ...) |
| 3442 | { |
| 3443 | static char buf[BLOGIC_LINEBUF_SIZE]; |
| 3444 | static bool begin = true; |
| 3445 | va_list args; |
| 3446 | int len = 0; |
| 3447 | |
| 3448 | va_start(args, adapter); |
| 3449 | len = vscnprintf(buf, sizeof(buf), fmt, args); |
| 3450 | va_end(args); |
| 3451 | if (msglevel == BLOGIC_ANNOUNCE_LEVEL) { |
| 3452 | static int msglines = 0; |
| 3453 | strcpy(&adapter->msgbuf[adapter->msgbuflen], buf); |
| 3454 | adapter->msgbuflen += len; |
| 3455 | if (++msglines <= 2) |
| 3456 | printk("%sscsi: %s", blogic_msglevelmap[msglevel], buf); |
| 3457 | } else if (msglevel == BLOGIC_INFO_LEVEL) { |
| 3458 | strcpy(&adapter->msgbuf[adapter->msgbuflen], buf); |
| 3459 | adapter->msgbuflen += len; |
| 3460 | if (begin) { |
| 3461 | if (buf[0] != '\n' || len > 1) |
| 3462 | printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf); |
| 3463 | } else |
| 3464 | pr_cont("%s", buf); |
| 3465 | } else { |
| 3466 | if (begin) { |
| 3467 | if (adapter != NULL && adapter->adapter_initd) |
| 3468 | printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf); |
| 3469 | else |
| 3470 | printk("%s%s", blogic_msglevelmap[msglevel], buf); |
| 3471 | } else |
| 3472 | pr_cont("%s", buf); |
| 3473 | } |
| 3474 | begin = (buf[len - 1] == '\n'); |
| 3475 | } |
| 3476 | |
| 3477 | |
| 3478 | /* |
| 3479 | blogic_parse parses an individual option keyword. It returns true |
| 3480 | and updates the pointer if the keyword is recognized and false otherwise. |
| 3481 | */ |
| 3482 | |
| 3483 | static bool __init blogic_parse(char **str, char *keyword) |
| 3484 | { |
| 3485 | char *pointer = *str; |
| 3486 | while (*keyword != '\0') { |
| 3487 | char strch = *pointer++; |
| 3488 | char keywordch = *keyword++; |
| 3489 | if (strch >= 'A' && strch <= 'Z') |
| 3490 | strch += 'a' - 'Z'; |
| 3491 | if (keywordch >= 'A' && keywordch <= 'Z') |
| 3492 | keywordch += 'a' - 'Z'; |
| 3493 | if (strch != keywordch) |
| 3494 | return false; |
| 3495 | } |
| 3496 | *str = pointer; |
| 3497 | return true; |
| 3498 | } |
| 3499 | |
| 3500 | |
| 3501 | /* |
| 3502 | blogic_parseopts handles processing of BusLogic Driver Options |
| 3503 | specifications. |
| 3504 | |
| 3505 | BusLogic Driver Options may be specified either via the Linux Kernel Command |
| 3506 | Line or via the Loadable Kernel Module Installation Facility. Driver Options |
| 3507 | for multiple host adapters may be specified either by separating the option |
| 3508 | strings by a semicolon, or by specifying multiple "BusLogic=" strings on the |
| 3509 | command line. Individual option specifications for a single host adapter are |
| 3510 | separated by commas. The Probing and Debugging Options apply to all host |
| 3511 | adapters whereas the remaining options apply individually only to the |
| 3512 | selected host adapter. |
| 3513 | |
| 3514 | The BusLogic Driver Probing Options are described in |
| 3515 | <file:Documentation/scsi/BusLogic.rst>. |
| 3516 | */ |
| 3517 | |
| 3518 | static int __init blogic_parseopts(char *options) |
| 3519 | { |
| 3520 | while (true) { |
| 3521 | struct blogic_drvr_options *drvr_opts = |
| 3522 | &blogic_drvr_options[blogic_drvr_options_count++]; |
| 3523 | int tgt_id; |
| 3524 | |
| 3525 | memset(drvr_opts, 0, sizeof(struct blogic_drvr_options)); |
| 3526 | while (*options != '\0' && *options != ';') { |
| 3527 | if (blogic_parse(&options, "NoProbePCI")) |
| 3528 | blogic_probe_options.noprobe_pci = true; |
| 3529 | else if (blogic_parse(&options, "NoProbe")) |
| 3530 | blogic_probe_options.noprobe = true; |
| 3531 | else if (blogic_parse(&options, "NoSortPCI")) |
| 3532 | blogic_probe_options.nosort_pci = true; |
| 3533 | else if (blogic_parse(&options, "MultiMasterFirst")) |
| 3534 | blogic_probe_options.multimaster_first = true; |
| 3535 | else if (blogic_parse(&options, "FlashPointFirst")) |
| 3536 | blogic_probe_options.flashpoint_first = true; |
| 3537 | /* Tagged Queuing Options. */ |
| 3538 | else if (blogic_parse(&options, "QueueDepth:[") || |
| 3539 | blogic_parse(&options, "QD:[")) { |
| 3540 | for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) { |
| 3541 | unsigned short qdepth = simple_strtoul(options, &options, 0); |
| 3542 | if (qdepth > BLOGIC_MAX_TAG_DEPTH) { |
| 3543 | blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth); |
| 3544 | return 0; |
| 3545 | } |
| 3546 | drvr_opts->qdepth[tgt_id] = qdepth; |
| 3547 | if (*options == ',') |
| 3548 | options++; |
| 3549 | else if (*options == ']') |
| 3550 | break; |
| 3551 | else { |
| 3552 | blogic_err("BusLogic: Invalid Driver Options (',' or ']' expected at '%s')\n", NULL, options); |
| 3553 | return 0; |
| 3554 | } |
| 3555 | } |
| 3556 | if (*options != ']') { |
| 3557 | blogic_err("BusLogic: Invalid Driver Options (']' expected at '%s')\n", NULL, options); |
| 3558 | return 0; |
| 3559 | } else |
| 3560 | options++; |
| 3561 | } else if (blogic_parse(&options, "QueueDepth:") || blogic_parse(&options, "QD:")) { |
| 3562 | unsigned short qdepth = simple_strtoul(options, &options, 0); |
| 3563 | if (qdepth == 0 || |
| 3564 | qdepth > BLOGIC_MAX_TAG_DEPTH) { |
| 3565 | blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth); |
| 3566 | return 0; |
| 3567 | } |
| 3568 | drvr_opts->common_qdepth = qdepth; |
| 3569 | for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) |
| 3570 | drvr_opts->qdepth[tgt_id] = qdepth; |
| 3571 | } else if (blogic_parse(&options, "TaggedQueuing:") || |
| 3572 | blogic_parse(&options, "TQ:")) { |
| 3573 | if (blogic_parse(&options, "Default")) { |
| 3574 | drvr_opts->tagq_ok = 0x0000; |
| 3575 | drvr_opts->tagq_ok_mask = 0x0000; |
| 3576 | } else if (blogic_parse(&options, "Enable")) { |
| 3577 | drvr_opts->tagq_ok = 0xFFFF; |
| 3578 | drvr_opts->tagq_ok_mask = 0xFFFF; |
| 3579 | } else if (blogic_parse(&options, "Disable")) { |
| 3580 | drvr_opts->tagq_ok = 0x0000; |
| 3581 | drvr_opts->tagq_ok_mask = 0xFFFF; |
| 3582 | } else { |
| 3583 | unsigned short tgt_bit; |
| 3584 | for (tgt_id = 0, tgt_bit = 1; |
| 3585 | tgt_id < BLOGIC_MAXDEV; |
| 3586 | tgt_id++, tgt_bit <<= 1) |
| 3587 | switch (*options++) { |
| 3588 | case 'Y': |
| 3589 | drvr_opts->tagq_ok |= tgt_bit; |
| 3590 | drvr_opts->tagq_ok_mask |= tgt_bit; |
| 3591 | break; |
| 3592 | case 'N': |
| 3593 | drvr_opts->tagq_ok &= ~tgt_bit; |
| 3594 | drvr_opts->tagq_ok_mask |= tgt_bit; |
| 3595 | break; |
| 3596 | case 'X': |
| 3597 | break; |
| 3598 | default: |
| 3599 | options--; |
| 3600 | tgt_id = BLOGIC_MAXDEV; |
| 3601 | break; |
| 3602 | } |
| 3603 | } |
| 3604 | } |
| 3605 | /* Miscellaneous Options. */ |
| 3606 | else if (blogic_parse(&options, "BusSettleTime:") || |
| 3607 | blogic_parse(&options, "BST:")) { |
| 3608 | unsigned short bus_settle_time = |
| 3609 | simple_strtoul(options, &options, 0); |
| 3610 | if (bus_settle_time > 5 * 60) { |
| 3611 | blogic_err("BusLogic: Invalid Driver Options (invalid Bus Settle Time %d)\n", NULL, bus_settle_time); |
| 3612 | return 0; |
| 3613 | } |
| 3614 | drvr_opts->bus_settle_time = bus_settle_time; |
| 3615 | } else if (blogic_parse(&options, |
| 3616 | "InhibitTargetInquiry")) |
| 3617 | drvr_opts->stop_tgt_inquiry = true; |
| 3618 | /* Debugging Options. */ |
| 3619 | else if (blogic_parse(&options, "TraceProbe")) |
| 3620 | blogic_global_options.trace_probe = true; |
| 3621 | else if (blogic_parse(&options, "TraceHardwareReset")) |
| 3622 | blogic_global_options.trace_hw_reset = true; |
| 3623 | else if (blogic_parse(&options, "TraceConfiguration")) |
| 3624 | blogic_global_options.trace_config = true; |
| 3625 | else if (blogic_parse(&options, "TraceErrors")) |
| 3626 | blogic_global_options.trace_err = true; |
| 3627 | else if (blogic_parse(&options, "Debug")) { |
| 3628 | blogic_global_options.trace_probe = true; |
| 3629 | blogic_global_options.trace_hw_reset = true; |
| 3630 | blogic_global_options.trace_config = true; |
| 3631 | blogic_global_options.trace_err = true; |
| 3632 | } |
| 3633 | if (*options == ',') |
| 3634 | options++; |
| 3635 | else if (*options != ';' && *options != '\0') { |
| 3636 | blogic_err("BusLogic: Unexpected Driver Option '%s' ignored\n", NULL, options); |
| 3637 | *options = '\0'; |
| 3638 | } |
| 3639 | } |
| 3640 | if (!(blogic_drvr_options_count == 0 || |
| 3641 | blogic_probeinfo_count == 0 || |
| 3642 | blogic_drvr_options_count == blogic_probeinfo_count)) { |
| 3643 | blogic_err("BusLogic: Invalid Driver Options (all or no I/O Addresses must be specified)\n", NULL); |
| 3644 | return 0; |
| 3645 | } |
| 3646 | /* |
| 3647 | Tagged Queuing is disabled when the Queue Depth is 1 since queuing |
| 3648 | multiple commands is not possible. |
| 3649 | */ |
| 3650 | for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) |
| 3651 | if (drvr_opts->qdepth[tgt_id] == 1) { |
| 3652 | unsigned short tgt_bit = 1 << tgt_id; |
| 3653 | drvr_opts->tagq_ok &= ~tgt_bit; |
| 3654 | drvr_opts->tagq_ok_mask |= tgt_bit; |
| 3655 | } |
| 3656 | if (*options == ';') |
| 3657 | options++; |
| 3658 | if (*options == '\0') |
| 3659 | return 0; |
| 3660 | } |
| 3661 | return 1; |
| 3662 | } |
| 3663 | |
| 3664 | /* |
| 3665 | Get it all started |
| 3666 | */ |
| 3667 | |
| 3668 | static struct scsi_host_template blogic_template = { |
| 3669 | .module = THIS_MODULE, |
| 3670 | .proc_name = "BusLogic", |
| 3671 | .write_info = blogic_write_info, |
| 3672 | .show_info = blogic_show_info, |
| 3673 | .name = "BusLogic", |
| 3674 | .info = blogic_drvr_info, |
| 3675 | .queuecommand = blogic_qcmd, |
| 3676 | .slave_configure = blogic_slaveconfig, |
| 3677 | .bios_param = blogic_diskparam, |
| 3678 | .eh_host_reset_handler = blogic_hostreset, |
| 3679 | #if 0 |
| 3680 | .eh_abort_handler = blogic_abort, |
| 3681 | #endif |
| 3682 | .max_sectors = 128, |
| 3683 | }; |
| 3684 | |
| 3685 | /* |
| 3686 | blogic_setup handles processing of Kernel Command Line Arguments. |
| 3687 | */ |
| 3688 | |
| 3689 | static int __init blogic_setup(char *str) |
| 3690 | { |
| 3691 | int ints[3]; |
| 3692 | |
| 3693 | (void) get_options(str, ARRAY_SIZE(ints), ints); |
| 3694 | |
| 3695 | if (ints[0] != 0) { |
| 3696 | blogic_err("BusLogic: Obsolete Command Line Entry Format Ignored\n", NULL); |
| 3697 | return 0; |
| 3698 | } |
| 3699 | if (str == NULL || *str == '\0') |
| 3700 | return 0; |
| 3701 | return blogic_parseopts(str); |
| 3702 | } |
| 3703 | |
| 3704 | /* |
| 3705 | * Exit function. Deletes all hosts associated with this driver. |
| 3706 | */ |
| 3707 | |
| 3708 | static void __exit blogic_exit(void) |
| 3709 | { |
| 3710 | struct blogic_adapter *ha, *next; |
| 3711 | |
| 3712 | list_for_each_entry_safe(ha, next, &blogic_host_list, host_list) |
| 3713 | blogic_deladapter(ha); |
| 3714 | } |
| 3715 | |
| 3716 | __setup("BusLogic=", blogic_setup); |
| 3717 | |
| 3718 | #ifdef MODULE |
| 3719 | /*static struct pci_device_id blogic_pci_tbl[] = { |
| 3720 | { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER, |
| 3721 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
| 3722 | { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC, |
| 3723 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
| 3724 | { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT, |
| 3725 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
| 3726 | { } |
| 3727 | };*/ |
| 3728 | static const struct pci_device_id blogic_pci_tbl[] = { |
| 3729 | {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER)}, |
| 3730 | {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC)}, |
| 3731 | {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT)}, |
| 3732 | {0, }, |
| 3733 | }; |
| 3734 | #endif |
| 3735 | MODULE_DEVICE_TABLE(pci, blogic_pci_tbl); |
| 3736 | |
| 3737 | module_init(blogic_init); |
| 3738 | module_exit(blogic_exit); |