1 /* 2 * Adaptec AAC series RAID controller driver 3 * (c) Copyright 2001 Red Hat Inc. 4 * 5 * based on the old aacraid driver that is.. 6 * Adaptec aacraid device driver for Linux. 7 * 8 * Copyright (c) 2000-2010 Adaptec, Inc. 9 * 2010-2015 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) 10 * 2016-2017 Microsemi Corp. (aacraid@microsemi.com) 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License as published by 14 * the Free Software Foundation; either version 2, or (at your option) 15 * any later version. 16 * 17 * This program is distributed in the hope that it will be useful, 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 * GNU General Public License for more details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; see the file COPYING. If not, write to 24 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 25 * 26 * Module Name: 27 * comminit.c 28 * 29 * Abstract: This supports the initialization of the host adapter commuication interface. 30 * This is a platform dependent module for the pci cyclone board. 31 * 32 */ 33 34 #include <linux/kernel.h> 35 #include <linux/init.h> 36 #include <linux/types.h> 37 #include <linux/pci.h> 38 #include <linux/spinlock.h> 39 #include <linux/slab.h> 40 #include <linux/blkdev.h> 41 #include <linux/delay.h> 42 #include <linux/completion.h> 43 #include <linux/mm.h> 44 #include <scsi/scsi_host.h> 45 #include <scsi/scsi_device.h> 46 #include <scsi/scsi_cmnd.h> 47 48 #include "aacraid.h" 49 50 struct aac_common aac_config = { 51 .irq_mod = 1 52 }; 53 54 static inline int aac_is_msix_mode(struct aac_dev *dev) 55 { 56 u32 status = 0; 57 58 if (aac_is_src(dev)) 59 status = src_readl(dev, MUnit.OMR); 60 return (status & AAC_INT_MODE_MSIX); 61 } 62 63 static inline void aac_change_to_intx(struct aac_dev *dev) 64 { 65 aac_src_access_devreg(dev, AAC_DISABLE_MSIX); 66 aac_src_access_devreg(dev, AAC_ENABLE_INTX); 67 } 68 69 static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign) 70 { 71 unsigned char *base; 72 unsigned long size, align; 73 const unsigned long fibsize = dev->max_fib_size; 74 const unsigned long printfbufsiz = 256; 75 unsigned long host_rrq_size, aac_init_size; 76 union aac_init *init; 77 dma_addr_t phys; 78 unsigned long aac_max_hostphysmempages; 79 80 if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) || 81 (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) || 82 (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 && 83 !dev->sa_firmware)) { 84 host_rrq_size = 85 (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) 86 * sizeof(u32); 87 aac_init_size = sizeof(union aac_init); 88 } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 && 89 dev->sa_firmware) { 90 host_rrq_size = (dev->scsi_host_ptr->can_queue 91 + AAC_NUM_MGT_FIB) * sizeof(u32) * AAC_MAX_MSIX; 92 aac_init_size = sizeof(union aac_init) + 93 (AAC_MAX_HRRQ - 1) * sizeof(struct _rrq); 94 } else { 95 host_rrq_size = 0; 96 aac_init_size = sizeof(union aac_init); 97 } 98 size = fibsize + aac_init_size + commsize + commalign + 99 printfbufsiz + host_rrq_size; 100 101 base = dma_alloc_coherent(&dev->pdev->dev, size, &phys, GFP_KERNEL); 102 if (base == NULL) { 103 printk(KERN_ERR "aacraid: unable to create mapping.\n"); 104 return 0; 105 } 106 107 dev->comm_addr = (void *)base; 108 dev->comm_phys = phys; 109 dev->comm_size = size; 110 111 if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) || 112 (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) || 113 (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3)) { 114 dev->host_rrq = (u32 *)(base + fibsize); 115 dev->host_rrq_pa = phys + fibsize; 116 memset(dev->host_rrq, 0, host_rrq_size); 117 } 118 119 dev->init = (union aac_init *)(base + fibsize + host_rrq_size); 120 dev->init_pa = phys + fibsize + host_rrq_size; 121 122 init = dev->init; 123 124 if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) { 125 int i; 126 u64 addr; 127 128 init->r8.init_struct_revision = 129 cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_8); 130 init->r8.init_flags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | 131 INITFLAGS_DRIVER_USES_UTC_TIME | 132 INITFLAGS_DRIVER_SUPPORTS_PM); 133 init->r8.init_flags |= 134 cpu_to_le32(INITFLAGS_DRIVER_SUPPORTS_HBA_MODE); 135 init->r8.rr_queue_count = cpu_to_le32(dev->max_msix); 136 init->r8.max_io_size = 137 cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); 138 init->r8.max_num_aif = init->r8.reserved1 = 139 init->r8.reserved2 = 0; 140 141 for (i = 0; i < dev->max_msix; i++) { 142 addr = (u64)dev->host_rrq_pa + dev->vector_cap * i * 143 sizeof(u32); 144 init->r8.rrq[i].host_addr_high = cpu_to_le32( 145 upper_32_bits(addr)); 146 init->r8.rrq[i].host_addr_low = cpu_to_le32( 147 lower_32_bits(addr)); 148 init->r8.rrq[i].msix_id = i; 149 init->r8.rrq[i].element_count = cpu_to_le16( 150 (u16)dev->vector_cap); 151 init->r8.rrq[i].comp_thresh = 152 init->r8.rrq[i].unused = 0; 153 } 154 155 pr_warn("aacraid: Comm Interface type3 enabled\n"); 156 } else { 157 init->r7.init_struct_revision = 158 cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION); 159 if (dev->max_fib_size != sizeof(struct hw_fib)) 160 init->r7.init_struct_revision = 161 cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4); 162 init->r7.no_of_msix_vectors = cpu_to_le32(SA_MINIPORT_REVISION); 163 init->r7.fsrev = cpu_to_le32(dev->fsrev); 164 165 /* 166 * Adapter Fibs are the first thing allocated so that they 167 * start page aligned 168 */ 169 dev->aif_base_va = (struct hw_fib *)base; 170 171 init->r7.adapter_fibs_virtual_address = 0; 172 init->r7.adapter_fibs_physical_address = cpu_to_le32((u32)phys); 173 init->r7.adapter_fibs_size = cpu_to_le32(fibsize); 174 init->r7.adapter_fib_align = cpu_to_le32(sizeof(struct hw_fib)); 175 176 /* 177 * number of 4k pages of host physical memory. The aacraid fw 178 * needs this number to be less than 4gb worth of pages. New 179 * firmware doesn't have any issues with the mapping system, but 180 * older Firmware did, and had *troubles* dealing with the math 181 * overloading past 32 bits, thus we must limit this field. 182 */ 183 aac_max_hostphysmempages = 184 dma_get_required_mask(&dev->pdev->dev) >> 12; 185 if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES) 186 init->r7.host_phys_mem_pages = 187 cpu_to_le32(aac_max_hostphysmempages); 188 else 189 init->r7.host_phys_mem_pages = 190 cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES); 191 192 init->r7.init_flags = 193 cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME | 194 INITFLAGS_DRIVER_SUPPORTS_PM); 195 init->r7.max_io_commands = 196 cpu_to_le32(dev->scsi_host_ptr->can_queue + 197 AAC_NUM_MGT_FIB); 198 init->r7.max_io_size = 199 cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); 200 init->r7.max_fib_size = cpu_to_le32(dev->max_fib_size); 201 init->r7.max_num_aif = cpu_to_le32(dev->max_num_aif); 202 203 if (dev->comm_interface == AAC_COMM_MESSAGE) { 204 init->r7.init_flags |= 205 cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); 206 pr_warn("aacraid: Comm Interface enabled\n"); 207 } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { 208 init->r7.init_struct_revision = 209 cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6); 210 init->r7.init_flags |= 211 cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | 212 INITFLAGS_NEW_COMM_TYPE1_SUPPORTED | 213 INITFLAGS_FAST_JBOD_SUPPORTED); 214 init->r7.host_rrq_addr_high = 215 cpu_to_le32(upper_32_bits(dev->host_rrq_pa)); 216 init->r7.host_rrq_addr_low = 217 cpu_to_le32(lower_32_bits(dev->host_rrq_pa)); 218 pr_warn("aacraid: Comm Interface type1 enabled\n"); 219 } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { 220 init->r7.init_struct_revision = 221 cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_7); 222 init->r7.init_flags |= 223 cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | 224 INITFLAGS_NEW_COMM_TYPE2_SUPPORTED | 225 INITFLAGS_FAST_JBOD_SUPPORTED); 226 init->r7.host_rrq_addr_high = 227 cpu_to_le32(upper_32_bits(dev->host_rrq_pa)); 228 init->r7.host_rrq_addr_low = 229 cpu_to_le32(lower_32_bits(dev->host_rrq_pa)); 230 init->r7.no_of_msix_vectors = 231 cpu_to_le32(dev->max_msix); 232 /* must be the COMM_PREFERRED_SETTINGS values */ 233 pr_warn("aacraid: Comm Interface type2 enabled\n"); 234 } 235 } 236 237 /* 238 * Increment the base address by the amount already used 239 */ 240 base = base + fibsize + host_rrq_size + aac_init_size; 241 phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size + 242 aac_init_size); 243 244 /* 245 * Align the beginning of Headers to commalign 246 */ 247 align = (commalign - ((uintptr_t)(base) & (commalign - 1))); 248 base = base + align; 249 phys = phys + align; 250 /* 251 * Fill in addresses of the Comm Area Headers and Queues 252 */ 253 *commaddr = base; 254 if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3) 255 init->r7.comm_header_address = cpu_to_le32((u32)phys); 256 /* 257 * Increment the base address by the size of the CommArea 258 */ 259 base = base + commsize; 260 phys = phys + commsize; 261 /* 262 * Place the Printf buffer area after the Fast I/O comm area. 263 */ 264 dev->printfbuf = (void *)base; 265 if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3) { 266 init->r7.printfbuf = cpu_to_le32(phys); 267 init->r7.printfbufsiz = cpu_to_le32(printfbufsiz); 268 } 269 memset(base, 0, printfbufsiz); 270 return 1; 271 } 272 273 static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize) 274 { 275 atomic_set(&q->numpending, 0); 276 q->dev = dev; 277 init_waitqueue_head(&q->cmdready); 278 INIT_LIST_HEAD(&q->cmdq); 279 init_waitqueue_head(&q->qfull); 280 spin_lock_init(&q->lockdata); 281 q->lock = &q->lockdata; 282 q->headers.producer = (__le32 *)mem; 283 q->headers.consumer = (__le32 *)(mem+1); 284 *(q->headers.producer) = cpu_to_le32(qsize); 285 *(q->headers.consumer) = cpu_to_le32(qsize); 286 q->entries = qsize; 287 } 288 289 static void aac_wait_for_io_completion(struct aac_dev *aac) 290 { 291 unsigned long flagv = 0; 292 int i = 0; 293 294 for (i = 60; i; --i) { 295 struct scsi_device *dev; 296 struct scsi_cmnd *command; 297 int active = 0; 298 299 __shost_for_each_device(dev, aac->scsi_host_ptr) { 300 spin_lock_irqsave(&dev->list_lock, flagv); 301 list_for_each_entry(command, &dev->cmd_list, list) { 302 if (command->SCp.phase == AAC_OWNER_FIRMWARE) { 303 active++; 304 break; 305 } 306 } 307 spin_unlock_irqrestore(&dev->list_lock, flagv); 308 if (active) 309 break; 310 311 } 312 /* 313 * We can exit If all the commands are complete 314 */ 315 if (active == 0) 316 break; 317 ssleep(1); 318 } 319 } 320 321 /** 322 * aac_send_shutdown - shutdown an adapter 323 * @dev: Adapter to shutdown 324 * 325 * This routine will send a VM_CloseAll (shutdown) request to the adapter. 326 */ 327 328 int aac_send_shutdown(struct aac_dev * dev) 329 { 330 struct fib * fibctx; 331 struct aac_close *cmd; 332 int status = 0; 333 334 if (aac_adapter_check_health(dev)) 335 return status; 336 337 if (!dev->adapter_shutdown) { 338 mutex_lock(&dev->ioctl_mutex); 339 dev->adapter_shutdown = 1; 340 mutex_unlock(&dev->ioctl_mutex); 341 } 342 343 aac_wait_for_io_completion(dev); 344 345 fibctx = aac_fib_alloc(dev); 346 if (!fibctx) 347 return -ENOMEM; 348 aac_fib_init(fibctx); 349 350 cmd = (struct aac_close *) fib_data(fibctx); 351 cmd->command = cpu_to_le32(VM_CloseAll); 352 cmd->cid = cpu_to_le32(0xfffffffe); 353 354 status = aac_fib_send(ContainerCommand, 355 fibctx, 356 sizeof(struct aac_close), 357 FsaNormal, 358 -2 /* Timeout silently */, 1, 359 NULL, NULL); 360 361 if (status >= 0) 362 aac_fib_complete(fibctx); 363 /* FIB should be freed only after getting the response from the F/W */ 364 if (status != -ERESTARTSYS) 365 aac_fib_free(fibctx); 366 if (aac_is_src(dev) && 367 dev->msi_enabled) 368 aac_set_intx_mode(dev); 369 return status; 370 } 371 372 /** 373 * aac_comm_init - Initialise FSA data structures 374 * @dev: Adapter to initialise 375 * 376 * Initializes the data structures that are required for the FSA commuication 377 * interface to operate. 378 * Returns 379 * 1 - if we were able to init the commuication interface. 380 * 0 - If there were errors initing. This is a fatal error. 381 */ 382 383 static int aac_comm_init(struct aac_dev * dev) 384 { 385 unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2; 386 unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES; 387 u32 *headers; 388 struct aac_entry * queues; 389 unsigned long size; 390 struct aac_queue_block * comm = dev->queues; 391 /* 392 * Now allocate and initialize the zone structures used as our 393 * pool of FIB context records. The size of the zone is based 394 * on the system memory size. We also initialize the mutex used 395 * to protect the zone. 396 */ 397 spin_lock_init(&dev->fib_lock); 398 399 /* 400 * Allocate the physically contiguous space for the commuication 401 * queue headers. 402 */ 403 404 size = hdrsize + queuesize; 405 406 if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT)) 407 return -ENOMEM; 408 409 queues = (struct aac_entry *)(((ulong)headers) + hdrsize); 410 411 /* Adapter to Host normal priority Command queue */ 412 comm->queue[HostNormCmdQueue].base = queues; 413 aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES); 414 queues += HOST_NORM_CMD_ENTRIES; 415 headers += 2; 416 417 /* Adapter to Host high priority command queue */ 418 comm->queue[HostHighCmdQueue].base = queues; 419 aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES); 420 421 queues += HOST_HIGH_CMD_ENTRIES; 422 headers +=2; 423 424 /* Host to adapter normal priority command queue */ 425 comm->queue[AdapNormCmdQueue].base = queues; 426 aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES); 427 428 queues += ADAP_NORM_CMD_ENTRIES; 429 headers += 2; 430 431 /* host to adapter high priority command queue */ 432 comm->queue[AdapHighCmdQueue].base = queues; 433 aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES); 434 435 queues += ADAP_HIGH_CMD_ENTRIES; 436 headers += 2; 437 438 /* adapter to host normal priority response queue */ 439 comm->queue[HostNormRespQueue].base = queues; 440 aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES); 441 queues += HOST_NORM_RESP_ENTRIES; 442 headers += 2; 443 444 /* adapter to host high priority response queue */ 445 comm->queue[HostHighRespQueue].base = queues; 446 aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES); 447 448 queues += HOST_HIGH_RESP_ENTRIES; 449 headers += 2; 450 451 /* host to adapter normal priority response queue */ 452 comm->queue[AdapNormRespQueue].base = queues; 453 aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES); 454 455 queues += ADAP_NORM_RESP_ENTRIES; 456 headers += 2; 457 458 /* host to adapter high priority response queue */ 459 comm->queue[AdapHighRespQueue].base = queues; 460 aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES); 461 462 comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock; 463 comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock; 464 comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock; 465 comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock; 466 467 return 0; 468 } 469 470 void aac_define_int_mode(struct aac_dev *dev) 471 { 472 int i, msi_count, min_msix; 473 474 msi_count = i = 0; 475 /* max. vectors from GET_COMM_PREFERRED_SETTINGS */ 476 if (dev->max_msix == 0 || 477 dev->pdev->device == PMC_DEVICE_S6 || 478 dev->sync_mode) { 479 dev->max_msix = 1; 480 dev->vector_cap = 481 dev->scsi_host_ptr->can_queue + 482 AAC_NUM_MGT_FIB; 483 return; 484 } 485 486 /* Don't bother allocating more MSI-X vectors than cpus */ 487 msi_count = min(dev->max_msix, 488 (unsigned int)num_online_cpus()); 489 490 dev->max_msix = msi_count; 491 492 if (msi_count > AAC_MAX_MSIX) 493 msi_count = AAC_MAX_MSIX; 494 495 if (msi_count > 1 && 496 pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) { 497 min_msix = 2; 498 i = pci_alloc_irq_vectors(dev->pdev, 499 min_msix, msi_count, 500 PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 501 if (i > 0) { 502 dev->msi_enabled = 1; 503 msi_count = i; 504 } else { 505 dev->msi_enabled = 0; 506 dev_err(&dev->pdev->dev, 507 "MSIX not supported!! Will try INTX 0x%x.\n", i); 508 } 509 } 510 511 if (!dev->msi_enabled) 512 dev->max_msix = msi_count = 1; 513 else { 514 if (dev->max_msix > msi_count) 515 dev->max_msix = msi_count; 516 } 517 if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 && dev->sa_firmware) 518 dev->vector_cap = dev->scsi_host_ptr->can_queue + 519 AAC_NUM_MGT_FIB; 520 else 521 dev->vector_cap = (dev->scsi_host_ptr->can_queue + 522 AAC_NUM_MGT_FIB) / msi_count; 523 524 } 525 struct aac_dev *aac_init_adapter(struct aac_dev *dev) 526 { 527 u32 status[5]; 528 struct Scsi_Host * host = dev->scsi_host_ptr; 529 extern int aac_sync_mode; 530 531 /* 532 * Check the preferred comm settings, defaults from template. 533 */ 534 dev->management_fib_count = 0; 535 spin_lock_init(&dev->manage_lock); 536 spin_lock_init(&dev->sync_lock); 537 spin_lock_init(&dev->iq_lock); 538 dev->max_fib_size = sizeof(struct hw_fib); 539 dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size 540 - sizeof(struct aac_fibhdr) 541 - sizeof(struct aac_write) + sizeof(struct sgentry)) 542 / sizeof(struct sgentry); 543 dev->comm_interface = AAC_COMM_PRODUCER; 544 dev->raw_io_interface = dev->raw_io_64 = 0; 545 546 547 /* 548 * Enable INTX mode, if not done already Enabled 549 */ 550 if (aac_is_msix_mode(dev)) { 551 aac_change_to_intx(dev); 552 dev_info(&dev->pdev->dev, "Changed firmware to INTX mode"); 553 } 554 555 if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, 556 0, 0, 0, 0, 0, 0, 557 status+0, status+1, status+2, status+3, status+4)) && 558 (status[0] == 0x00000001)) { 559 dev->doorbell_mask = status[3]; 560 if (status[1] & AAC_OPT_NEW_COMM_64) 561 dev->raw_io_64 = 1; 562 dev->sync_mode = aac_sync_mode; 563 if (dev->a_ops.adapter_comm && 564 (status[1] & AAC_OPT_NEW_COMM)) { 565 dev->comm_interface = AAC_COMM_MESSAGE; 566 dev->raw_io_interface = 1; 567 if ((status[1] & AAC_OPT_NEW_COMM_TYPE1)) { 568 /* driver supports TYPE1 (Tupelo) */ 569 dev->comm_interface = AAC_COMM_MESSAGE_TYPE1; 570 } else if (status[1] & AAC_OPT_NEW_COMM_TYPE2) { 571 /* driver supports TYPE2 (Denali, Yosemite) */ 572 dev->comm_interface = AAC_COMM_MESSAGE_TYPE2; 573 } else if (status[1] & AAC_OPT_NEW_COMM_TYPE3) { 574 /* driver supports TYPE3 (Yosemite, Thor) */ 575 dev->comm_interface = AAC_COMM_MESSAGE_TYPE3; 576 } else if (status[1] & AAC_OPT_NEW_COMM_TYPE4) { 577 /* not supported TYPE - switch to sync. mode */ 578 dev->comm_interface = AAC_COMM_MESSAGE_TYPE2; 579 dev->sync_mode = 1; 580 } 581 } 582 if ((status[1] & le32_to_cpu(AAC_OPT_EXTENDED)) && 583 (status[4] & le32_to_cpu(AAC_EXTOPT_SA_FIRMWARE))) 584 dev->sa_firmware = 1; 585 else 586 dev->sa_firmware = 0; 587 588 if ((dev->comm_interface == AAC_COMM_MESSAGE) && 589 (status[2] > dev->base_size)) { 590 aac_adapter_ioremap(dev, 0); 591 dev->base_size = status[2]; 592 if (aac_adapter_ioremap(dev, status[2])) { 593 /* remap failed, go back ... */ 594 dev->comm_interface = AAC_COMM_PRODUCER; 595 if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) { 596 printk(KERN_WARNING 597 "aacraid: unable to map adapter.\n"); 598 return NULL; 599 } 600 } 601 } 602 } 603 dev->max_msix = 0; 604 dev->msi_enabled = 0; 605 dev->adapter_shutdown = 0; 606 if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS, 607 0, 0, 0, 0, 0, 0, 608 status+0, status+1, status+2, status+3, status+4)) 609 && (status[0] == 0x00000001)) { 610 /* 611 * status[1] >> 16 maximum command size in KB 612 * status[1] & 0xFFFF maximum FIB size 613 * status[2] >> 16 maximum SG elements to driver 614 * status[2] & 0xFFFF maximum SG elements from driver 615 * status[3] & 0xFFFF maximum number FIBs outstanding 616 */ 617 host->max_sectors = (status[1] >> 16) << 1; 618 /* Multiple of 32 for PMC */ 619 dev->max_fib_size = status[1] & 0xFFE0; 620 host->sg_tablesize = status[2] >> 16; 621 dev->sg_tablesize = status[2] & 0xFFFF; 622 if (aac_is_src(dev)) { 623 if (host->can_queue > (status[3] >> 16) - 624 AAC_NUM_MGT_FIB) 625 host->can_queue = (status[3] >> 16) - 626 AAC_NUM_MGT_FIB; 627 } else if (host->can_queue > (status[3] & 0xFFFF) - 628 AAC_NUM_MGT_FIB) 629 host->can_queue = (status[3] & 0xFFFF) - 630 AAC_NUM_MGT_FIB; 631 632 dev->max_num_aif = status[4] & 0xFFFF; 633 } 634 if (numacb > 0) { 635 if (numacb < host->can_queue) 636 host->can_queue = numacb; 637 else 638 pr_warn("numacb=%d ignored\n", numacb); 639 } 640 641 if (aac_is_src(dev)) 642 aac_define_int_mode(dev); 643 /* 644 * Ok now init the communication subsystem 645 */ 646 647 dev->queues = kzalloc(sizeof(struct aac_queue_block), GFP_KERNEL); 648 if (dev->queues == NULL) { 649 printk(KERN_ERR "Error could not allocate comm region.\n"); 650 return NULL; 651 } 652 653 if (aac_comm_init(dev)<0){ 654 kfree(dev->queues); 655 return NULL; 656 } 657 /* 658 * Initialize the list of fibs 659 */ 660 if (aac_fib_setup(dev) < 0) { 661 kfree(dev->queues); 662 return NULL; 663 } 664 665 INIT_LIST_HEAD(&dev->fib_list); 666 INIT_LIST_HEAD(&dev->sync_fib_list); 667 668 return dev; 669 } 670 671