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/completion.h> 41#include <linux/mm.h> 42#include <scsi/scsi_host.h> 43 44#include "aacraid.h" 45 46struct aac_common aac_config = { 47 .irq_mod = 1 48}; 49 50static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long commsize, unsigned long commalign) 51{ 52 unsigned char *base; 53 unsigned long size, align; 54 const unsigned long fibsize = 4096; 55 const unsigned long printfbufsiz = 256; 56 unsigned long host_rrq_size = 0; 57 struct aac_init *init; 58 dma_addr_t phys; 59 unsigned long aac_max_hostphysmempages; 60 61 if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 || 62 dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) 63 host_rrq_size = (dev->scsi_host_ptr->can_queue 64 + AAC_NUM_MGT_FIB) * sizeof(u32); 65 size = fibsize + sizeof(struct aac_init) + commsize + 66 commalign + printfbufsiz + host_rrq_size; 67 68 base = pci_alloc_consistent(dev->pdev, size, &phys); 69 70 if(base == NULL) 71 { 72 printk(KERN_ERR "aacraid: unable to create mapping.\n"); 73 return 0; 74 } 75 dev->comm_addr = (void *)base; 76 dev->comm_phys = phys; 77 dev->comm_size = size; 78 79 if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1 || 80 dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { 81 dev->host_rrq = (u32 *)(base + fibsize); 82 dev->host_rrq_pa = phys + fibsize; 83 memset(dev->host_rrq, 0, host_rrq_size); 84 } 85 86 dev->init = (struct aac_init *)(base + fibsize + host_rrq_size); 87 dev->init_pa = phys + fibsize + host_rrq_size; 88 89 init = dev->init; 90 91 init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION); 92 if (dev->max_fib_size != sizeof(struct hw_fib)) 93 init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4); 94 init->MiniPortRevision = cpu_to_le32(Sa_MINIPORT_REVISION); 95 init->fsrev = cpu_to_le32(dev->fsrev); 96 97 /* 98 * Adapter Fibs are the first thing allocated so that they 99 * start page aligned 100 */ 101 dev->aif_base_va = (struct hw_fib *)base; 102 103 init->AdapterFibsVirtualAddress = 0; 104 init->AdapterFibsPhysicalAddress = cpu_to_le32((u32)phys); 105 init->AdapterFibsSize = cpu_to_le32(fibsize); 106 init->AdapterFibAlign = cpu_to_le32(sizeof(struct hw_fib)); 107 /* 108 * number of 4k pages of host physical memory. The aacraid fw needs 109 * this number to be less than 4gb worth of pages. New firmware doesn't 110 * have any issues with the mapping system, but older Firmware did, and 111 * had *troubles* dealing with the math overloading past 32 bits, thus 112 * we must limit this field. 113 */ 114 aac_max_hostphysmempages = dma_get_required_mask(&dev->pdev->dev) >> 12; 115 if (aac_max_hostphysmempages < AAC_MAX_HOSTPHYSMEMPAGES) 116 init->HostPhysMemPages = cpu_to_le32(aac_max_hostphysmempages); 117 else 118 init->HostPhysMemPages = cpu_to_le32(AAC_MAX_HOSTPHYSMEMPAGES); 119 120 init->InitFlags = cpu_to_le32(INITFLAGS_DRIVER_USES_UTC_TIME | 121 INITFLAGS_DRIVER_SUPPORTS_PM); 122 init->MaxIoCommands = cpu_to_le32(dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); 123 init->MaxIoSize = cpu_to_le32(dev->scsi_host_ptr->max_sectors << 9); 124 init->MaxFibSize = cpu_to_le32(dev->max_fib_size); 125 init->MaxNumAif = cpu_to_le32(dev->max_num_aif); 126 127 if (dev->comm_interface == AAC_COMM_MESSAGE) { 128 init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED); 129 dprintk((KERN_WARNING"aacraid: New Comm Interface enabled\n")); 130 } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE1) { 131 init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_6); 132 init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | 133 INITFLAGS_NEW_COMM_TYPE1_SUPPORTED | INITFLAGS_FAST_JBOD_SUPPORTED); 134 init->HostRRQ_AddrHigh = cpu_to_le32((u32)((u64)dev->host_rrq_pa >> 32)); 135 init->HostRRQ_AddrLow = cpu_to_le32((u32)(dev->host_rrq_pa & 0xffffffff)); 136 dprintk((KERN_WARNING"aacraid: New Comm Interface type1 enabled\n")); 137 } else if (dev->comm_interface == AAC_COMM_MESSAGE_TYPE2) { 138 init->InitStructRevision = cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_7); 139 init->InitFlags |= cpu_to_le32(INITFLAGS_NEW_COMM_SUPPORTED | 140 INITFLAGS_NEW_COMM_TYPE2_SUPPORTED | INITFLAGS_FAST_JBOD_SUPPORTED); 141 init->HostRRQ_AddrHigh = cpu_to_le32((u32)((u64)dev->host_rrq_pa >> 32)); 142 init->HostRRQ_AddrLow = cpu_to_le32((u32)(dev->host_rrq_pa & 0xffffffff)); 143 init->MiniPortRevision = cpu_to_le32(0L); /* number of MSI-X */ 144 dprintk((KERN_WARNING"aacraid: New Comm Interface type2 enabled\n")); 145 } 146 147 /* 148 * Increment the base address by the amount already used 149 */ 150 base = base + fibsize + host_rrq_size + sizeof(struct aac_init); 151 phys = (dma_addr_t)((ulong)phys + fibsize + host_rrq_size + 152 sizeof(struct aac_init)); 153 154 /* 155 * Align the beginning of Headers to commalign 156 */ 157 align = (commalign - ((uintptr_t)(base) & (commalign - 1))); 158 base = base + align; 159 phys = phys + align; 160 /* 161 * Fill in addresses of the Comm Area Headers and Queues 162 */ 163 *commaddr = base; 164 init->CommHeaderAddress = cpu_to_le32((u32)phys); 165 /* 166 * Increment the base address by the size of the CommArea 167 */ 168 base = base + commsize; 169 phys = phys + commsize; 170 /* 171 * Place the Printf buffer area after the Fast I/O comm area. 172 */ 173 dev->printfbuf = (void *)base; 174 init->printfbuf = cpu_to_le32(phys); 175 init->printfbufsiz = cpu_to_le32(printfbufsiz); 176 memset(base, 0, printfbufsiz); 177 return 1; 178} 179 180static void aac_queue_init(struct aac_dev * dev, struct aac_queue * q, u32 *mem, int qsize) 181{ 182 q->numpending = 0; 183 q->dev = dev; 184 init_waitqueue_head(&q->cmdready); 185 INIT_LIST_HEAD(&q->cmdq); 186 init_waitqueue_head(&q->qfull); 187 spin_lock_init(&q->lockdata); 188 q->lock = &q->lockdata; 189 q->headers.producer = (__le32 *)mem; 190 q->headers.consumer = (__le32 *)(mem+1); 191 *(q->headers.producer) = cpu_to_le32(qsize); 192 *(q->headers.consumer) = cpu_to_le32(qsize); 193 q->entries = qsize; 194} 195 196/** 197 * aac_send_shutdown - shutdown an adapter 198 * @dev: Adapter to shutdown 199 * 200 * This routine will send a VM_CloseAll (shutdown) request to the adapter. 201 */ 202 203int aac_send_shutdown(struct aac_dev * dev) 204{ 205 struct fib * fibctx; 206 struct aac_close *cmd; 207 int status; 208 209 fibctx = aac_fib_alloc(dev); 210 if (!fibctx) 211 return -ENOMEM; 212 aac_fib_init(fibctx); 213 214 cmd = (struct aac_close *) fib_data(fibctx); 215 216 cmd->command = cpu_to_le32(VM_CloseAll); 217 cmd->cid = cpu_to_le32(0xfffffffe); 218 219 status = aac_fib_send(ContainerCommand, 220 fibctx, 221 sizeof(struct aac_close), 222 FsaNormal, 223 -2 /* Timeout silently */, 1, 224 NULL, NULL); 225 226 if (status >= 0) 227 aac_fib_complete(fibctx); 228 /* FIB should be freed only after getting the response from the F/W */ 229 if (status != -ERESTARTSYS) 230 aac_fib_free(fibctx); 231 return status; 232} 233 234/** 235 * aac_comm_init - Initialise FSA data structures 236 * @dev: Adapter to initialise 237 * 238 * Initializes the data structures that are required for the FSA commuication 239 * interface to operate. 240 * Returns 241 * 1 - if we were able to init the commuication interface. 242 * 0 - If there were errors initing. This is a fatal error. 243 */ 244 245static int aac_comm_init(struct aac_dev * dev) 246{ 247 unsigned long hdrsize = (sizeof(u32) * NUMBER_OF_COMM_QUEUES) * 2; 248 unsigned long queuesize = sizeof(struct aac_entry) * TOTAL_QUEUE_ENTRIES; 249 u32 *headers; 250 struct aac_entry * queues; 251 unsigned long size; 252 struct aac_queue_block * comm = dev->queues; 253 /* 254 * Now allocate and initialize the zone structures used as our 255 * pool of FIB context records. The size of the zone is based 256 * on the system memory size. We also initialize the mutex used 257 * to protect the zone. 258 */ 259 spin_lock_init(&dev->fib_lock); 260 261 /* 262 * Allocate the physically contiguous space for the commuication 263 * queue headers. 264 */ 265 266 size = hdrsize + queuesize; 267 268 if (!aac_alloc_comm(dev, (void * *)&headers, size, QUEUE_ALIGNMENT)) 269 return -ENOMEM; 270 271 queues = (struct aac_entry *)(((ulong)headers) + hdrsize); 272 273 /* Adapter to Host normal priority Command queue */ 274 comm->queue[HostNormCmdQueue].base = queues; 275 aac_queue_init(dev, &comm->queue[HostNormCmdQueue], headers, HOST_NORM_CMD_ENTRIES); 276 queues += HOST_NORM_CMD_ENTRIES; 277 headers += 2; 278 279 /* Adapter to Host high priority command queue */ 280 comm->queue[HostHighCmdQueue].base = queues; 281 aac_queue_init(dev, &comm->queue[HostHighCmdQueue], headers, HOST_HIGH_CMD_ENTRIES); 282 283 queues += HOST_HIGH_CMD_ENTRIES; 284 headers +=2; 285 286 /* Host to adapter normal priority command queue */ 287 comm->queue[AdapNormCmdQueue].base = queues; 288 aac_queue_init(dev, &comm->queue[AdapNormCmdQueue], headers, ADAP_NORM_CMD_ENTRIES); 289 290 queues += ADAP_NORM_CMD_ENTRIES; 291 headers += 2; 292 293 /* host to adapter high priority command queue */ 294 comm->queue[AdapHighCmdQueue].base = queues; 295 aac_queue_init(dev, &comm->queue[AdapHighCmdQueue], headers, ADAP_HIGH_CMD_ENTRIES); 296 297 queues += ADAP_HIGH_CMD_ENTRIES; 298 headers += 2; 299 300 /* adapter to host normal priority response queue */ 301 comm->queue[HostNormRespQueue].base = queues; 302 aac_queue_init(dev, &comm->queue[HostNormRespQueue], headers, HOST_NORM_RESP_ENTRIES); 303 queues += HOST_NORM_RESP_ENTRIES; 304 headers += 2; 305 306 /* adapter to host high priority response queue */ 307 comm->queue[HostHighRespQueue].base = queues; 308 aac_queue_init(dev, &comm->queue[HostHighRespQueue], headers, HOST_HIGH_RESP_ENTRIES); 309 310 queues += HOST_HIGH_RESP_ENTRIES; 311 headers += 2; 312 313 /* host to adapter normal priority response queue */ 314 comm->queue[AdapNormRespQueue].base = queues; 315 aac_queue_init(dev, &comm->queue[AdapNormRespQueue], headers, ADAP_NORM_RESP_ENTRIES); 316 317 queues += ADAP_NORM_RESP_ENTRIES; 318 headers += 2; 319 320 /* host to adapter high priority response queue */ 321 comm->queue[AdapHighRespQueue].base = queues; 322 aac_queue_init(dev, &comm->queue[AdapHighRespQueue], headers, ADAP_HIGH_RESP_ENTRIES); 323 324 comm->queue[AdapNormCmdQueue].lock = comm->queue[HostNormRespQueue].lock; 325 comm->queue[AdapHighCmdQueue].lock = comm->queue[HostHighRespQueue].lock; 326 comm->queue[AdapNormRespQueue].lock = comm->queue[HostNormCmdQueue].lock; 327 comm->queue[AdapHighRespQueue].lock = comm->queue[HostHighCmdQueue].lock; 328 329 return 0; 330} 331 332struct aac_dev *aac_init_adapter(struct aac_dev *dev) 333{ 334 u32 status[5]; 335 struct Scsi_Host * host = dev->scsi_host_ptr; 336 extern int aac_sync_mode; 337 338 /* 339 * Check the preferred comm settings, defaults from template. 340 */ 341 dev->management_fib_count = 0; 342 spin_lock_init(&dev->manage_lock); 343 spin_lock_init(&dev->sync_lock); 344 dev->max_fib_size = sizeof(struct hw_fib); 345 dev->sg_tablesize = host->sg_tablesize = (dev->max_fib_size 346 - sizeof(struct aac_fibhdr) 347 - sizeof(struct aac_write) + sizeof(struct sgentry)) 348 / sizeof(struct sgentry); 349 dev->comm_interface = AAC_COMM_PRODUCER; 350 dev->raw_io_interface = dev->raw_io_64 = 0; 351 352 if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES, 353 0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) && 354 (status[0] == 0x00000001)) { 355 if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64)) 356 dev->raw_io_64 = 1; 357 dev->sync_mode = aac_sync_mode; 358 if (dev->a_ops.adapter_comm && 359 (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM))) { 360 dev->comm_interface = AAC_COMM_MESSAGE; 361 dev->raw_io_interface = 1; 362 if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE1))) { 363 /* driver supports TYPE1 (Tupelo) */ 364 dev->comm_interface = AAC_COMM_MESSAGE_TYPE1; 365 } else if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE2))) { 366 /* driver supports TYPE2 (Denali) */ 367 dev->comm_interface = AAC_COMM_MESSAGE_TYPE2; 368 } else if ((status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE4)) || 369 (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_TYPE3))) { 370 /* driver doesn't TYPE3 and TYPE4 */ 371 /* switch to sync. mode */ 372 dev->comm_interface = AAC_COMM_MESSAGE_TYPE2; 373 dev->sync_mode = 1; 374 } 375 } 376 if ((dev->comm_interface == AAC_COMM_MESSAGE) && 377 (status[2] > dev->base_size)) { 378 aac_adapter_ioremap(dev, 0); 379 dev->base_size = status[2]; 380 if (aac_adapter_ioremap(dev, status[2])) { 381 /* remap failed, go back ... */ 382 dev->comm_interface = AAC_COMM_PRODUCER; 383 if (aac_adapter_ioremap(dev, AAC_MIN_FOOTPRINT_SIZE)) { 384 printk(KERN_WARNING 385 "aacraid: unable to map adapter.\n"); 386 return NULL; 387 } 388 } 389 } 390 } 391 if ((!aac_adapter_sync_cmd(dev, GET_COMM_PREFERRED_SETTINGS, 392 0, 0, 0, 0, 0, 0, 393 status+0, status+1, status+2, status+3, status+4)) 394 && (status[0] == 0x00000001)) { 395 /* 396 * status[1] >> 16 maximum command size in KB 397 * status[1] & 0xFFFF maximum FIB size 398 * status[2] >> 16 maximum SG elements to driver 399 * status[2] & 0xFFFF maximum SG elements from driver 400 * status[3] & 0xFFFF maximum number FIBs outstanding 401 */ 402 host->max_sectors = (status[1] >> 16) << 1; 403 /* Multiple of 32 for PMC */ 404 dev->max_fib_size = status[1] & 0xFFE0; 405 host->sg_tablesize = status[2] >> 16; 406 dev->sg_tablesize = status[2] & 0xFFFF; 407 if (dev->pdev->device == PMC_DEVICE_S7 || 408 dev->pdev->device == PMC_DEVICE_S8 || 409 dev->pdev->device == PMC_DEVICE_S9) 410 host->can_queue = ((status[3] >> 16) ? (status[3] >> 16) : 411 (status[3] & 0xFFFF)) - AAC_NUM_MGT_FIB; 412 else 413 host->can_queue = (status[3] & 0xFFFF) - AAC_NUM_MGT_FIB; 414 dev->max_num_aif = status[4] & 0xFFFF; 415 /* 416 * NOTE: 417 * All these overrides are based on a fixed internal 418 * knowledge and understanding of existing adapters, 419 * acbsize should be set with caution. 420 */ 421 if (acbsize == 512) { 422 host->max_sectors = AAC_MAX_32BIT_SGBCOUNT; 423 dev->max_fib_size = 512; 424 dev->sg_tablesize = host->sg_tablesize 425 = (512 - sizeof(struct aac_fibhdr) 426 - sizeof(struct aac_write) + sizeof(struct sgentry)) 427 / sizeof(struct sgentry); 428 host->can_queue = AAC_NUM_IO_FIB; 429 } else if (acbsize == 2048) { 430 host->max_sectors = 512; 431 dev->max_fib_size = 2048; 432 host->sg_tablesize = 65; 433 dev->sg_tablesize = 81; 434 host->can_queue = 512 - AAC_NUM_MGT_FIB; 435 } else if (acbsize == 4096) { 436 host->max_sectors = 1024; 437 dev->max_fib_size = 4096; 438 host->sg_tablesize = 129; 439 dev->sg_tablesize = 166; 440 host->can_queue = 256 - AAC_NUM_MGT_FIB; 441 } else if (acbsize == 8192) { 442 host->max_sectors = 2048; 443 dev->max_fib_size = 8192; 444 host->sg_tablesize = 257; 445 dev->sg_tablesize = 337; 446 host->can_queue = 128 - AAC_NUM_MGT_FIB; 447 } else if (acbsize > 0) { 448 printk("Illegal acbsize=%d ignored\n", acbsize); 449 } 450 } 451 { 452 453 if (numacb > 0) { 454 if (numacb < host->can_queue) 455 host->can_queue = numacb; 456 else 457 printk("numacb=%d ignored\n", numacb); 458 } 459 } 460 461 if (host->can_queue > AAC_NUM_IO_FIB) 462 host->can_queue = AAC_NUM_IO_FIB; 463 464 /* 465 * Ok now init the communication subsystem 466 */ 467 468 dev->queues = kzalloc(sizeof(struct aac_queue_block), GFP_KERNEL); 469 if (dev->queues == NULL) { 470 printk(KERN_ERR "Error could not allocate comm region.\n"); 471 return NULL; 472 } 473 474 if (aac_comm_init(dev)<0){ 475 kfree(dev->queues); 476 return NULL; 477 } 478 /* 479 * Initialize the list of fibs 480 */ 481 if (aac_fib_setup(dev) < 0) { 482 kfree(dev->queues); 483 return NULL; 484 } 485 486 INIT_LIST_HEAD(&dev->fib_list); 487 INIT_LIST_HEAD(&dev->sync_fib_list); 488 489 return dev; 490} 491 492 493