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 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2, or (at your option) 14 * any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; see the file COPYING. If not, write to 23 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 24 * 25 * Module Name: 26 * comminit.c 27 * 28 * Abstract: This supports the initialization of the host adapter commuication interface. 29 * This is a platform dependent module for the pci cyclone board. 30 * 31 */ 32 33 #include <linux/kernel.h> 34 #include <linux/init.h> 35 #include <linux/types.h> 36 #include <linux/pci.h> 37 #include <linux/spinlock.h> 38 #include <linux/slab.h> 39 #include <linux/blkdev.h> 40 #include <linux/delay.h> 41 #include <linux/completion.h> 42 #include <linux/mm.h> 43 #include <scsi/scsi_host.h> 44 45 #include "aacraid.h" 46 47 struct aac_common aac_config = { 48 .irq_mod = 1 49 }; 50 51 static inline int aac_is_msix_mode(struct aac_dev *dev) 52 { 53 u32 status; 54 55 status = src_readl(dev, MUnit.OMR); 56 return (status & AAC_INT_MODE_MSIX); 57 } 58 59 static inline void aac_change_to_intx(struct aac_dev *dev) 60 { 61 aac_src_access_devreg(dev, AAC_DISABLE_MSIX); 62 aac_src_access_devreg(dev, AAC_ENABLE_INTX); 63 } 64 65 static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign) 66 { 67 unsigned char *base; 68 unsigned long size, align; 69 const unsigned long fibsize = dev->max_fib_size; 70 const unsigned long printfbufsiz = 256; 71 unsigned long host_rrq_size, aac_init_size; 72 union aac_init *init; 73 dma_addr_t phys; 74 unsigned long aac_max_hostphysmempages; 75 76 if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) || 77 (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) || 78 (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 && 79 !dev->sa_firmware)) { 80 host_rrq_size = 81 (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB) 82 * sizeof(u32); 83 aac_init_size = sizeof(union aac_init); 84 } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 && 85 dev->sa_firmware) { 86 host_rrq_size = (dev->scsi_host_ptr->can_queue 87 + AAC_NUM_MGT_FIB) * sizeof(u32) * AAC_MAX_MSIX; 88 aac_init_size = sizeof(union aac_init) + 89 (AAC_MAX_HRRQ - 1) * sizeof(struct _rrq); 90 } else { 91 host_rrq_size = 0; 92 aac_init_size = sizeof(union aac_init); 93 } 94 size = fibsize + aac_init_size + commsize + commalign + 95 printfbufsiz + host_rrq_size; 96 97 base = pci_alloc_consistent(dev->pdev, size, &phys); 98 99 if (base == NULL) { 100 printk(KERN_ERR "aacraid: unable to create mapping.\n"); 101 return 0; 102 } 103 104 dev->comm_addr = (void *)base; 105 dev->comm_phys = phys; 106 dev->comm_size = size; 107 108 if ((dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) || 109 (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) || 110 (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3)) { 111 dev->host_rrq = (u32 *)(base + fibsize); 112 dev->host_rrq_pa = phys + fibsize; 113 memset(dev->host_rrq, 0, host_rrq_size); 114 } 115 116 dev->init = (union aac_init *)(base + fibsize + host_rrq_size); 117 dev->init_pa = phys + fibsize + host_rrq_size; 118 119 init = dev->init; 120 121 if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3) { 122 int i; 123 u64 addr; 124 125 init->r8.init_struct_revision = 126 cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_8); 127 init->r8.init_flags = cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | 128 INITFLAGS_DRIVER_USES_UTC_TIME | 129 INITFLAGS_DRIVER_SUPPORTS_PM); 130 init->r8.init_flags |= 131 cpu_to_le32(INITFLAGS_DRIVER_SUPPORTS_HBA_MODE); 132 init->r8.rr_queue_count = cpu_to_le32(dev->max_msix); 133 init->r8.max_io_size = 134 cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); 135 init->r8.max_num_aif = init->r8.reserved1 = 136 init->r8.reserved2 = 0; 137 138 for (i = 0; i < dev->max_msix; i++) { 139 addr = (u64)dev->host_rrq_pa + dev->vector_cap * i * 140 sizeof(u32); 141 init->r8.rrq[i].host_addr_high = cpu_to_le32( 142 upper_32_bits(addr)); 143 init->r8.rrq[i].host_addr_low = cpu_to_le32( 144 lower_32_bits(addr)); 145 init->r8.rrq[i].msix_id = i; 146 init->r8.rrq[i].element_count = cpu_to_le16( 147 (u16)dev->vector_cap); 148 init->r8.rrq[i].comp_thresh = 149 init->r8.rrq[i].unused = 0; 150 } 151 152 pr_warn("aacraid: Comm Interface type3 enabled\n"); 153 } else { 154 init->r7.init_struct_revision = 155 cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION); 156 if (dev->max_fib_size != sizeof(struct hw_fib)) 157 init->r7.init_struct_revision = 158 cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4); 159 init->r7.no_of_msix_vectors = cpu_to_le32(SA_MINIPORT_REVISION); 160 init->r7.fsrev = cpu_to_le32(dev->fsrev); 161 162 /* 163 * Adapter Fibs are the first thing allocated so that they 164 * start page aligned 165 */ 166 dev->aif_base_va = (struct hw_fib *)base; 167 168 init->r7.adapter_fibs_virtual_address = 0; 169 init->r7.adapter_fibs_physical_address = cpu_to_le32((u32)phys); 170 init->r7.adapter_fibs_size = cpu_to_le32(fibsize); 171 init->r7.adapter_fib_align = cpu_to_le32(sizeof(struct hw_fib)); 172 173 /* 174 * number of 4k pages of host physical memory. The aacraid fw 175 * needs this number to be less than 4gb worth of pages. New 176 * firmware doesn't have any issues with the mapping system, but 177 * older Firmware did, and had *troubles* dealing with the math 178 * overloading past 32 bits, thus we must limit this field. 179 */ 180 aac_max_hostphysmempages = 181 dma_get_required_mask(&dev->pdev->dev) >> 12; 182 if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES) 183 init->r7.host_phys_mem_pages = 184 cpu_to_le32(aac_max_hostphysmempages); 185 else 186 init->r7.host_phys_mem_pages = 187 cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES); 188 189 init->r7.init_flags = 190 cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME | 191 INITFLAGS_DRIVER_SUPPORTS_PM); 192 init->r7.max_io_commands = 193 cpu_to_le32(dev->scsi_host_ptr->can_queue + 194 AAC_NUM_MGT_FIB); 195 init->r7.max_io_size = 196 cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); 197 init->r7.max_fib_size = cpu_to_le32(dev->max_fib_size); 198 init->r7.max_num_aif = cpu_to_le32(dev->max_num_aif); 199 200 if (dev->comm_interface == AAC_COMM_MESSAGE) { 201 init->r7.init_flags |= 202 cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); 203 pr_warn("aacraid: Comm Interface enabled\n"); 204 } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { 205 init->r7.init_struct_revision = 206 cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6); 207 init->r7.init_flags |= 208 cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | 209 INITFLAGS_NEW_COMM_TYPE1_SUPPORTED | 210 INITFLAGS_FAST_JBOD_SUPPORTED); 211 init->r7.host_rrq_addr_high = 212 cpu_to_le32(upper_32_bits(dev->host_rrq_pa)); 213 init->r7.host_rrq_addr_low = 214 cpu_to_le32(lower_32_bits(dev->host_rrq_pa)); 215 pr_warn("aacraid: Comm Interface type1 enabled\n"); 216 } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { 217 init->r7.init_struct_revision = 218 cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_7); 219 init->r7.init_flags |= 220 cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | 221 INITFLAGS_NEW_COMM_TYPE2_SUPPORTED | 222 INITFLAGS_FAST_JBOD_SUPPORTED); 223 init->r7.host_rrq_addr_high = 224 cpu_to_le32(upper_32_bits(dev->host_rrq_pa)); 225 init->r7.host_rrq_addr_low = 226 cpu_to_le32(lower_32_bits(dev->host_rrq_pa)); 227 init->r7.no_of_msix_vectors = 228 cpu_to_le32(dev->max_msix); 229 /* must be the COMM_PREFERRED_SETTINGS values */ 230 pr_warn("aacraid: Comm Interface type2 enabled\n"); 231 } 232 } 233 234 /* 235 * Increment the base address by the amount already used 236 */ 237 base = base + fibsize + host_rrq_size + aac_init_size; 238 phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size + 239 aac_init_size); 240 241 /* 242 * Align the beginning of Headers to commalign 243 */ 244 align = (commalign - ((uintptr_t)(base) & (commalign - 1))); 245 base = base + align; 246 phys = phys + align; 247 /* 248 * Fill in addresses of the Comm Area Headers and Queues 249 */ 250 *commaddr = base; 251 if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3) 252 init->r7.comm_header_address = cpu_to_le32((u32)phys); 253 /* 254 * Increment the base address by the size of the CommArea 255 */ 256 base = base + commsize; 257 phys = phys + commsize; 258 /* 259 * Place the Printf buffer area after the Fast I/O comm area. 260 */ 261 dev->printfbuf = (void *)base; 262 if (dev->comm_interface != AAC_COMM_MESSAGE_TYPE3) { 263 init->r7.printfbuf = cpu_to_le32(phys); 264 init->r7.printfbufsiz = cpu_to_le32(printfbufsiz); 265 } 266 memset(base, 0, printfbufsiz); 267 return 1; 268 } 269 270 static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize) 271 { 272 atomic_set(&q->numpending, 0); 273 q->dev = dev; 274 init_waitqueue_head(&q->cmdready); 275 INIT_LIST_HEAD(&q->cmdq); 276 init_waitqueue_head(&q->qfull); 277 spin_lock_init(&q->lockdata); 278 q->lock = &q->lockdata; 279 q->headers.producer = (__le32 *)mem; 280 q->headers.consumer = (__le32 *)(mem+1); 281 *(q->headers.producer) = cpu_to_le32(qsize); 282 *(q->headers.consumer) = cpu_to_le32(qsize); 283 q->entries = qsize; 284 } 285 286 /** 287 * aac_send_shutdown - shutdown an adapter 288 * @dev: Adapter to shutdown 289 * 290 * This routine will send a VM_CloseAll (shutdown) request to the adapter. 291 */ 292 293 int aac_send_shutdown(struct aac_dev * dev) 294 { 295 struct fib * fibctx; 296 struct aac_close *cmd; 297 int status; 298 299 fibctx = aac_fib_alloc(dev); 300 if (!fibctx) 301 return -ENOMEM; 302 aac_fib_init(fibctx); 303 304 mutex_lock(&dev->ioctl_mutex); 305 dev->adapter_shutdown = 1; 306 mutex_unlock(&dev->ioctl_mutex); 307 308 cmd = (struct aac_close *) fib_data(fibctx); 309 cmd->command = cpu_to_le32(VM_CloseAll); 310 cmd->cid = cpu_to_le32(0xfffffffe); 311 312 status = aac_fib_send(ContainerCommand, 313 fibctx, 314 sizeof(struct aac_close), 315 FsaNormal, 316 -2 /* Timeout silently */, 1, 317 NULL, NULL); 318 319 if (status >= 0) 320 aac_fib_complete(fibctx); 321 /* FIB should be freed only after getting the response from the F/W */ 322 if (status != -ERESTARTSYS) 323 aac_fib_free(fibctx); 324 if ((dev->pdev->device == PMC_DEVICE_S7 || 325 dev->pdev->device == PMC_DEVICE_S8 || 326 dev->pdev->device == PMC_DEVICE_S9) && 327 dev->msi_enabled) 328 aac_src_access_devreg(dev, AAC_ENABLE_INTX); 329 return status; 330 } 331 332 /** 333 * aac_comm_init - Initialise FSA data structures 334 * @dev: Adapter to initialise 335 * 336 * Initializes the data structures that are required for the FSA commuication 337 * interface to operate. 338 * Returns 339 * 1 - if we were able to init the commuication interface. 340 * 0 - If there were errors initing. This is a fatal error. 341 */ 342 343 static int aac_comm_init(struct aac_dev * dev) 344 { 345 unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2; 346 unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES; 347 u32 *headers; 348 struct aac_entry * queues; 349 unsigned long size; 350 struct aac_queue_block * comm = dev->queues; 351 /* 352 * Now allocate and initialize the zone structures used as our 353 * pool of FIB context records. The size of the zone is based 354 * on the system memory size. We also initialize the mutex used 355 * to protect the zone. 356 */ 357 spin_lock_init(&dev->fib_lock); 358 359 /* 360 * Allocate the physically contiguous space for the commuication 361 * queue headers. 362 */ 363 364 size = hdrsize + queuesize; 365 366 if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT)) 367 return -ENOMEM; 368 369 queues = (struct aac_entry *)(((ulong)headers) + hdrsize); 370 371 /* Adapter to Host normal priority Command queue */ 372 comm->queue[HostNormCmdQueue].base = queues; 373 aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES); 374 queues += HOST_NORM_CMD_ENTRIES; 375 headers += 2; 376 377 /* Adapter to Host high priority command queue */ 378 comm->queue[HostHighCmdQueue].base = queues; 379 aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES); 380 381 queues += HOST_HIGH_CMD_ENTRIES; 382 headers +=2; 383 384 /* Host to adapter normal priority command queue */ 385 comm->queue[AdapNormCmdQueue].base = queues; 386 aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES); 387 388 queues += ADAP_NORM_CMD_ENTRIES; 389 headers += 2; 390 391 /* host to adapter high priority command queue */ 392 comm->queue[AdapHighCmdQueue].base = queues; 393 aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES); 394 395 queues += ADAP_HIGH_CMD_ENTRIES; 396 headers += 2; 397 398 /* adapter to host normal priority response queue */ 399 comm->queue[HostNormRespQueue].base = queues; 400 aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES); 401 queues += HOST_NORM_RESP_ENTRIES; 402 headers += 2; 403 404 /* adapter to host high priority response queue */ 405 comm->queue[HostHighRespQueue].base = queues; 406 aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES); 407 408 queues += HOST_HIGH_RESP_ENTRIES; 409 headers += 2; 410 411 /* host to adapter normal priority response queue */ 412 comm->queue[AdapNormRespQueue].base = queues; 413 aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES); 414 415 queues += ADAP_NORM_RESP_ENTRIES; 416 headers += 2; 417 418 /* host to adapter high priority response queue */ 419 comm->queue[AdapHighRespQueue].base = queues; 420 aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES); 421 422 comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock; 423 comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock; 424 comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock; 425 comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock; 426 427 return 0; 428 } 429 430 void aac_define_int_mode(struct aac_dev *dev) 431 { 432 int i, msi_count, min_msix; 433 434 msi_count = i = 0; 435 /* max. vectors from GET_COMM_PREFERRED_SETTINGS */ 436 if (dev->max_msix == 0 || 437 dev->pdev->device == PMC_DEVICE_S6 || 438 dev->sync_mode) { 439 dev->max_msix = 1; 440 dev->vector_cap = 441 dev->scsi_host_ptr->can_queue + 442 AAC_NUM_MGT_FIB; 443 return; 444 } 445 446 /* Don't bother allocating more MSI-X vectors than cpus */ 447 msi_count = min(dev->max_msix, 448 (unsigned int)num_online_cpus()); 449 450 dev->max_msix = msi_count; 451 452 if (msi_count > AAC_MAX_MSIX) 453 msi_count = AAC_MAX_MSIX; 454 455 if (msi_count > 1 && 456 pci_find_capability(dev->pdev, PCI_CAP_ID_MSIX)) { 457 min_msix = 2; 458 i = pci_alloc_irq_vectors(dev->pdev, 459 min_msix, msi_count, 460 PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); 461 if (i > 0) { 462 dev->msi_enabled = 1; 463 msi_count = i; 464 } else { 465 dev->msi_enabled = 0; 466 dev_err(&dev->pdev->dev, 467 "MSIX not supported!! Will try INTX 0x%x.\n", i); 468 } 469 } 470 471 if (!dev->msi_enabled) 472 dev->max_msix = msi_count = 1; 473 else { 474 if (dev->max_msix > msi_count) 475 dev->max_msix = msi_count; 476 } 477 if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE3 && dev->sa_firmware) 478 dev->vector_cap = dev->scsi_host_ptr->can_queue + 479 AAC_NUM_MGT_FIB; 480 else 481 dev->vector_cap = (dev->scsi_host_ptr->can_queue + 482 AAC_NUM_MGT_FIB) / msi_count; 483 484 } 485 struct aac_dev *aac_init_adapter(struct aac_dev *dev) 486 { 487 u32 status[5]; 488 struct Scsi_Host * host = dev->scsi_host_ptr; 489 extern int aac_sync_mode; 490 491 /* 492 * Check the preferred comm settings, defaults from template. 493 */ 494 dev->management_fib_count = 0; 495 spin_lock_init(&dev->manage_lock); 496 spin_lock_init(&dev->sync_lock); 497 spin_lock_init(&dev->iq_lock); 498 dev->max_fib_size = sizeof(struct hw_fib); 499 dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size 500 - sizeof(struct aac_fibhdr) 501 - sizeof(struct aac_write) + sizeof(struct sgentry)) 502 / sizeof(struct sgentry); 503 dev->comm_interface = AAC_COMM_PRODUCER; 504 dev->raw_io_interface = dev->raw_io_64 = 0; 505 506 507 /* 508 * Enable INTX mode, if not done already Enabled 509 */ 510 if (aac_is_msix_mode(dev)) { 511 aac_change_to_intx(dev); 512 dev_info(&dev->pdev->dev, "Changed firmware to INTX mode"); 513 } 514 515 if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, 516 0, 0, 0, 0, 0, 0, 517 status+0, status+1, status+2, status+3, status+4)) && 518 (status[0] == 0x00000001)) { 519 dev->doorbell_mask = status[3]; 520 if (status[1] & AAC_OPT_NEW_COMM_64) 521 dev->raw_io_64 = 1; 522 dev->sync_mode = aac_sync_mode; 523 if (dev->a_ops.adapter_comm && 524 (status[1] & AAC_OPT_NEW_COMM)) { 525 dev->comm_interface = AAC_COMM_MESSAGE; 526 dev->raw_io_interface = 1; 527 if ((status[1] & AAC_OPT_NEW_COMM_TYPE1)) { 528 /* driver supports TYPE1 (Tupelo) */ 529 dev->comm_interface = AAC_COMM_MESSAGE_TYPE1; 530 } else if (status[1] & AAC_OPT_NEW_COMM_TYPE2) { 531 /* driver supports TYPE2 (Denali, Yosemite) */ 532 dev->comm_interface = AAC_COMM_MESSAGE_TYPE2; 533 } else if (status[1] & AAC_OPT_NEW_COMM_TYPE3) { 534 /* driver supports TYPE3 (Yosemite, Thor) */ 535 dev->comm_interface = AAC_COMM_MESSAGE_TYPE3; 536 } else if (status[1] & AAC_OPT_NEW_COMM_TYPE4) { 537 /* not supported TYPE - switch to sync. mode */ 538 dev->comm_interface = AAC_COMM_MESSAGE_TYPE2; 539 dev->sync_mode = 1; 540 } 541 } 542 if ((status[1] & le32_to_cpu(AAC_OPT_EXTENDED)) && 543 (status[4] & le32_to_cpu(AAC_EXTOPT_SA_FIRMWARE))) 544 dev->sa_firmware = 1; 545 else 546 dev->sa_firmware = 0; 547 548 if ((dev->comm_interface == AAC_COMM_MESSAGE) && 549 (status[2] > dev->base_size)) { 550 aac_adapter_ioremap(dev, 0); 551 dev->base_size = status[2]; 552 if (aac_adapter_ioremap(dev, status[2])) { 553 /* remap failed, go back ... */ 554 dev->comm_interface = AAC_COMM_PRODUCER; 555 if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) { 556 printk(KERN_WARNING 557 "aacraid: unable to map adapter.\n"); 558 return NULL; 559 } 560 } 561 } 562 } 563 dev->max_msix = 0; 564 dev->msi_enabled = 0; 565 dev->adapter_shutdown = 0; 566 if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS, 567 0, 0, 0, 0, 0, 0, 568 status+0, status+1, status+2, status+3, status+4)) 569 && (status[0] == 0x00000001)) { 570 /* 571 * status[1] >> 16 maximum command size in KB 572 * status[1] & 0xFFFF maximum FIB size 573 * status[2] >> 16 maximum SG elements to driver 574 * status[2] & 0xFFFF maximum SG elements from driver 575 * status[3] & 0xFFFF maximum number FIBs outstanding 576 */ 577 host->max_sectors = (status[1] >> 16) << 1; 578 /* Multiple of 32 for PMC */ 579 dev->max_fib_size = status[1] & 0xFFE0; 580 host->sg_tablesize = status[2] >> 16; 581 dev->sg_tablesize = status[2] & 0xFFFF; 582 if (dev->pdev->device == PMC_DEVICE_S7 || 583 dev->pdev->device == PMC_DEVICE_S8 || 584 dev->pdev->device == PMC_DEVICE_S9) { 585 if (host->can_queue > (status[3] >> 16) - 586 AAC_NUM_MGT_FIB) 587 host->can_queue = (status[3] >> 16) - 588 AAC_NUM_MGT_FIB; 589 } else if (host->can_queue > (status[3] & 0xFFFF) - 590 AAC_NUM_MGT_FIB) 591 host->can_queue = (status[3] & 0xFFFF) - 592 AAC_NUM_MGT_FIB; 593 594 dev->max_num_aif = status[4] & 0xFFFF; 595 } 596 if (numacb > 0) { 597 if (numacb < host->can_queue) 598 host->can_queue = numacb; 599 else 600 pr_warn("numacb=%d ignored\n", numacb); 601 } 602 603 if (dev->pdev->device == PMC_DEVICE_S6 || 604 dev->pdev->device == PMC_DEVICE_S7 || 605 dev->pdev->device == PMC_DEVICE_S8 || 606 dev->pdev->device == PMC_DEVICE_S9) 607 aac_define_int_mode(dev); 608 /* 609 * Ok now init the communication subsystem 610 */ 611 612 dev->queues = kzalloc(sizeof(struct aac_queue_block), GFP_KERNEL); 613 if (dev->queues == NULL) { 614 printk(KERN_ERR "Error could not allocate comm region.\n"); 615 return NULL; 616 } 617 618 if (aac_comm_init(dev)<0){ 619 kfree(dev->queues); 620 return NULL; 621 } 622 /* 623 * Initialize the list of fibs 624 */ 625 if (aac_fib_setup(dev) < 0) { 626 kfree(dev->queues); 627 return NULL; 628 } 629 630 INIT_LIST_HEAD(&dev->fib_list); 631 INIT_LIST_HEAD(&dev->sync_fib_list); 632 633 return dev; 634 } 635 636