drivers/scsi/aic94xx/aic94xx_init.c

   1 /*
   2  * Aic94xx SAS/SATA driver initialization.
   3  *
   4  * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
   5  * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
   6  *
   7  * This file is licensed under GPLv2.
   8  *
   9  * This file is part of the aic94xx driver.
  10  *
  11  * The aic94xx driver is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; version 2 of the
  14  * License.
  15  *
  16  * The aic94xx driver 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 GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with the aic94xx driver; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  24  *
  25  */
  26
  27 #include <linux/module.h>
  28 #include <linux/init.h>
  29 #include <linux/kernel.h>
  30 #include <linux/pci.h>
  31 #include <linux/delay.h>
  32
  33 #include <scsi/scsi_host.h>
  34
  35 #include "aic94xx.h"
  36 #include "aic94xx_reg.h"
  37 #include "aic94xx_hwi.h"
  38 #include "aic94xx_seq.h"
  39
  40 /* The format is "version.release.patchlevel" */
  41 #define ASD_DRIVER_VERSION "1.0.3"
  42
  43 static int use_msi = 0;
  44 module_param_named(use_msi, use_msi, int, S_IRUGO);
  45 MODULE_PARM_DESC(use_msi, "\n"
  46         "\tEnable(1) or disable(0) using PCI MSI.\n"
  47         "\tDefault: 0");
  48
  49 static int lldd_max_execute_num = 0;
  50 module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
  51 MODULE_PARM_DESC(collector, "\n"
  52         "\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
  53         "\tMode.  If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
  54         "\tThe aic94xx SAS LLDD supports both modes.\n"
  55         "\tDefault: 0 (Direct Mode).\n");
  56
  57 char sas_addr_str[2*SAS_ADDR_SIZE + 1] = "";
  58
  59 static struct scsi_transport_template *aic94xx_transport_template;
  60 static int asd_scan_finished(struct Scsi_Host *, unsigned long);
  61 static void asd_scan_start(struct Scsi_Host *);
  62
  63 static struct scsi_host_template aic94xx_sht = {
  64         .module                 = THIS_MODULE,
  65         /* .name is initialized */
  66         .name                   = "aic94xx",
  67         .queuecommand           = sas_queuecommand,
  68         .target_alloc           = sas_target_alloc,
  69         .slave_configure        = sas_slave_configure,
  70         .slave_destroy          = sas_slave_destroy,
  71         .scan_finished          = asd_scan_finished,
  72         .scan_start             = asd_scan_start,
  73         .change_queue_depth     = sas_change_queue_depth,
  74         .change_queue_type      = sas_change_queue_type,
  75         .bios_param             = sas_bios_param,
  76         .can_queue              = 1,
  77         .cmd_per_lun            = 1,
  78         .this_id                = -1,
  79         .sg_tablesize           = SG_ALL,
  80         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
  81         .use_clustering         = ENABLE_CLUSTERING,
  82         .eh_device_reset_handler        = sas_eh_device_reset_handler,
  83         .eh_bus_reset_handler   = sas_eh_bus_reset_handler,
  84         .slave_alloc            = sas_slave_alloc,
  85         .target_destroy         = sas_target_destroy,
  86         .ioctl                  = sas_ioctl,
  87 };
  88
  89 static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
  90 {
  91         int err, i;
  92         struct asd_ha_addrspace *io_handle;
  93
  94         asd_ha->iospace = 0;
  95         for (i = 0; i < 3; i += 2) {
  96                 io_handle = &asd_ha->io_handle[i==0?0:1];
  97                 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
  98                 io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
  99                 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 100                 err = -ENODEV;
 101                 if (!io_handle->start || !io_handle->len) {
 102                         asd_printk("MBAR%d start or length for %s is 0.\n",
 103                                    i==0?0:1, pci_name(asd_ha->pcidev));
 104                         goto Err;
 105                 }
 106                 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 107                 if (err) {
 108                         asd_printk("couldn't reserve memory region for %s\n",
 109                                    pci_name(asd_ha->pcidev));
 110                         goto Err;
 111                 }
 112                 if (io_handle->flags & IORESOURCE_CACHEABLE)
 113                         io_handle->addr = ioremap(io_handle->start,
 114                                                   io_handle->len);
 115                 else
 116                         io_handle->addr = ioremap_nocache(io_handle->start,
 117                                                           io_handle->len);
 118                 if (!io_handle->addr) {
 119                         asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
 120                                    pci_name(asd_ha->pcidev));
 121                         goto Err_unreq;
 122                 }
 123         }
 124
 125         return 0;
 126 Err_unreq:
 127         pci_release_region(asd_ha->pcidev, i);
 128 Err:
 129         if (i > 0) {
 130                 io_handle = &asd_ha->io_handle[0];
 131                 iounmap(io_handle->addr);
 132                 pci_release_region(asd_ha->pcidev, 0);
 133         }
 134         return err;
 135 }
 136
 137 static void __devexit asd_unmap_memio(struct asd_ha_struct *asd_ha)
 138 {
 139         struct asd_ha_addrspace *io_handle;
 140
 141         io_handle = &asd_ha->io_handle[1];
 142         iounmap(io_handle->addr);
 143         pci_release_region(asd_ha->pcidev, 2);
 144
 145         io_handle = &asd_ha->io_handle[0];
 146         iounmap(io_handle->addr);
 147         pci_release_region(asd_ha->pcidev, 0);
 148 }
 149
 150 static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
 151 {
 152         int i = PCI_IOBAR_OFFSET, err;
 153         struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
 154
 155         asd_ha->iospace = 1;
 156         io_handle->start = pci_resource_start(asd_ha->pcidev, i);
 157         io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 158         io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 159         io_handle->addr  = (void __iomem *) io_handle->start;
 160         if (!io_handle->start || !io_handle->len) {
 161                 asd_printk("couldn't get IO ports for %s\n",
 162                            pci_name(asd_ha->pcidev));
 163                 return -ENODEV;
 164         }
 165         err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 166         if (err) {
 167                 asd_printk("couldn't reserve io space for %s\n",
 168                            pci_name(asd_ha->pcidev));
 169         }
 170
 171         return err;
 172 }
 173
 174 static void __devexit asd_unmap_ioport(struct asd_ha_struct *asd_ha)
 175 {
 176         pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
 177 }
 178
 179 static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
 180 {
 181         int err;
 182         u16 cmd_reg;
 183
 184         err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
 185         if (err) {
 186                 asd_printk("couldn't read command register of %s\n",
 187                            pci_name(asd_ha->pcidev));
 188                 goto Err;
 189         }
 190
 191         err = -ENODEV;
 192         if (cmd_reg & PCI_COMMAND_MEMORY) {
 193                 if ((err = asd_map_memio(asd_ha)))
 194                         goto Err;
 195         } else if (cmd_reg & PCI_COMMAND_IO) {
 196                 if ((err = asd_map_ioport(asd_ha)))
 197                         goto Err;
 198                 asd_printk("%s ioport mapped -- upgrade your hardware\n",
 199                            pci_name(asd_ha->pcidev));
 200         } else {
 201                 asd_printk("no proper device access to %s\n",
 202                            pci_name(asd_ha->pcidev));
 203                 goto Err;
 204         }
 205
 206         return 0;
 207 Err:
 208         return err;
 209 }
 210
 211 static void __devexit asd_unmap_ha(struct asd_ha_struct *asd_ha)
 212 {
 213         if (asd_ha->iospace)
 214                 asd_unmap_ioport(asd_ha);
 215         else
 216                 asd_unmap_memio(asd_ha);
 217 }
 218
 219 static const char *asd_dev_rev[30] = {
 220         [0] = "A0",
 221         [1] = "A1",
 222         [8] = "B0",
 223 };
 224
 225 static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
 226 {
 227         int err, i;
 228
 229         asd_ha->revision_id = asd_ha->pcidev->revision;
 230
 231         err = -ENODEV;
 232         if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
 233                 asd_printk("%s is revision %s (%X), which is not supported\n",
 234                            pci_name(asd_ha->pcidev),
 235                            asd_dev_rev[asd_ha->revision_id],
 236                            asd_ha->revision_id);
 237                 goto Err;
 238         }
 239         /* Provide some sane default values. */
 240         asd_ha->hw_prof.max_scbs = 512;
 241         asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
 242         asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
 243         /* All phys are enabled, by default. */
 244         asd_ha->hw_prof.enabled_phys = 0xFF;
 245         for (i = 0; i < ASD_MAX_PHYS; i++) {
 246                 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
 247                         SAS_LINK_RATE_3_0_GBPS;
 248                 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
 249                         SAS_LINK_RATE_1_5_GBPS;
 250                 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
 251                         SAS_LINK_RATE_1_5_GBPS;
 252                 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
 253                         SAS_LINK_RATE_1_5_GBPS;
 254         }
 255
 256         return 0;
 257 Err:
 258         return err;
 259 }
 260
 261 static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
 262 {
 263         int err = asd_common_setup(asd_ha);
 264
 265         if (err)
 266                 return err;
 267
 268         asd_ha->hw_prof.addr_range = 8;
 269         asd_ha->hw_prof.port_name_base = 0;
 270         asd_ha->hw_prof.dev_name_base = 8;
 271         asd_ha->hw_prof.sata_name_base = 16;
 272
 273         return 0;
 274 }
 275
 276 static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
 277 {
 278         int err = asd_common_setup(asd_ha);
 279
 280         if (err)
 281                 return err;
 282
 283         asd_ha->hw_prof.addr_range = 4;
 284         asd_ha->hw_prof.port_name_base = 0;
 285         asd_ha->hw_prof.dev_name_base = 4;
 286         asd_ha->hw_prof.sata_name_base = 8;
 287
 288         return 0;
 289 }
 290
 291 static ssize_t asd_show_dev_rev(struct device *dev,
 292                                 struct device_attribute *attr, char *buf)
 293 {
 294         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 295         return snprintf(buf, PAGE_SIZE, "%s\n",
 296                         asd_dev_rev[asd_ha->revision_id]);
 297 }
 298 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
 299
 300 static ssize_t asd_show_dev_bios_build(struct device *dev,
 301                                        struct device_attribute *attr,char *buf)
 302 {
 303         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 304         return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
 305 }
 306 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
 307
 308 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
 309                                     struct device_attribute *attr, char *buf)
 310 {
 311         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 312         return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
 313 }
 314 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
 315
 316 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
 317 {
 318         int err;
 319
 320         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 321         if (err)
 322                 return err;
 323
 324         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 325         if (err)
 326                 goto err_rev;
 327
 328         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 329         if (err)
 330                 goto err_biosb;
 331
 332         return 0;
 333
 334 err_biosb:
 335         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 336 err_rev:
 337         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 338         return err;
 339 }
 340
 341 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
 342 {
 343         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 344         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 345         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 346 }
 347
 348 /* The first entry, 0, is used for dynamic ids, the rest for devices
 349  * we know about.
 350  */
 351 static struct asd_pcidev_struct {
 352         const char * name;
 353         int (*setup)(struct asd_ha_struct *asd_ha);
 354 } asd_pcidev_data[] = {
 355         /* Id 0 is used for dynamic ids. */
 356         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
 357           .setup = asd_aic9410_setup
 358         },
 359         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
 360           .setup = asd_aic9410_setup
 361         },
 362         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
 363           .setup = asd_aic9405_setup
 364         },
 365 };
 366
 367 static inline int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
 368 {
 369         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
 370                                            &asd_ha->pcidev->dev,
 371                                            sizeof(struct scb),
 372                                            8, 0);
 373         if (!asd_ha->scb_pool) {
 374                 asd_printk("couldn't create scb pool\n");
 375                 return -ENOMEM;
 376         }
 377
 378         return 0;
 379 }
 380
 381 /**
 382  * asd_free_edbs -- free empty data buffers
 383  * asd_ha: pointer to host adapter structure
 384  */
 385 static inline void asd_free_edbs(struct asd_ha_struct *asd_ha)
 386 {
 387         struct asd_seq_data *seq = &asd_ha->seq;
 388         int i;
 389
 390         for (i = 0; i < seq->num_edbs; i++)
 391                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
 392         kfree(seq->edb_arr);
 393         seq->edb_arr = NULL;
 394 }
 395
 396 static inline void asd_free_escbs(struct asd_ha_struct *asd_ha)
 397 {
 398         struct asd_seq_data *seq = &asd_ha->seq;
 399         int i;
 400
 401         for (i = 0; i < seq->num_escbs; i++) {
 402                 if (!list_empty(&seq->escb_arr[i]->list))
 403                         list_del_init(&seq->escb_arr[i]->list);
 404
 405                 asd_ascb_free(seq->escb_arr[i]);
 406         }
 407         kfree(seq->escb_arr);
 408         seq->escb_arr = NULL;
 409 }
 410
 411 static inline void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
 412 {
 413         int i;
 414
 415         if (asd_ha->hw_prof.ddb_ext)
 416                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
 417         if (asd_ha->hw_prof.scb_ext)
 418                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
 419
 420         if (asd_ha->hw_prof.ddb_bitmap)
 421                 kfree(asd_ha->hw_prof.ddb_bitmap);
 422         asd_ha->hw_prof.ddb_bitmap = NULL;
 423
 424         for (i = 0; i < ASD_MAX_PHYS; i++) {
 425                 struct asd_phy *phy = &asd_ha->phys[i];
 426
 427                 asd_free_coherent(asd_ha, phy->id_frm_tok);
 428         }
 429         if (asd_ha->seq.escb_arr)
 430                 asd_free_escbs(asd_ha);
 431         if (asd_ha->seq.edb_arr)
 432                 asd_free_edbs(asd_ha);
 433         if (asd_ha->hw_prof.ue.area) {
 434                 kfree(asd_ha->hw_prof.ue.area);
 435                 asd_ha->hw_prof.ue.area = NULL;
 436         }
 437         if (asd_ha->seq.tc_index_array) {
 438                 kfree(asd_ha->seq.tc_index_array);
 439                 kfree(asd_ha->seq.tc_index_bitmap);
 440                 asd_ha->seq.tc_index_array = NULL;
 441                 asd_ha->seq.tc_index_bitmap = NULL;
 442         }
 443         if (asd_ha->seq.actual_dl) {
 444                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
 445                         asd_ha->seq.actual_dl = NULL;
 446                         asd_ha->seq.dl = NULL;
 447         }
 448         if (asd_ha->seq.next_scb.vaddr) {
 449                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
 450                               asd_ha->seq.next_scb.dma_handle);
 451                 asd_ha->seq.next_scb.vaddr = NULL;
 452         }
 453         dma_pool_destroy(asd_ha->scb_pool);
 454         asd_ha->scb_pool = NULL;
 455 }
 456
 457 struct kmem_cache *asd_dma_token_cache;
 458 struct kmem_cache *asd_ascb_cache;
 459
 460 static int asd_create_global_caches(void)
 461 {
 462         if (!asd_dma_token_cache) {
 463                 asd_dma_token_cache
 464                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
 465                                             sizeof(struct asd_dma_tok),
 466                                             0,
 467                                             SLAB_HWCACHE_ALIGN,
 468                                             NULL);
 469                 if (!asd_dma_token_cache) {
 470                         asd_printk("couldn't create dma token cache\n");
 471                         return -ENOMEM;
 472                 }
 473         }
 474
 475         if (!asd_ascb_cache) {
 476                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
 477                                                    sizeof(struct asd_ascb),
 478                                                    0,
 479                                                    SLAB_HWCACHE_ALIGN,
 480                                                    NULL);
 481                 if (!asd_ascb_cache) {
 482                         asd_printk("couldn't create ascb cache\n");
 483                         goto Err;
 484                 }
 485         }
 486
 487         return 0;
 488 Err:
 489         kmem_cache_destroy(asd_dma_token_cache);
 490         asd_dma_token_cache = NULL;
 491         return -ENOMEM;
 492 }
 493
 494 static void asd_destroy_global_caches(void)
 495 {
 496         if (asd_dma_token_cache)
 497                 kmem_cache_destroy(asd_dma_token_cache);
 498         asd_dma_token_cache = NULL;
 499
 500         if (asd_ascb_cache)
 501                 kmem_cache_destroy(asd_ascb_cache);
 502         asd_ascb_cache = NULL;
 503 }
 504
 505 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
 506 {
 507         int i;
 508         struct asd_sas_phy   **sas_phys =
 509                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL);
 510         struct asd_sas_port  **sas_ports =
 511                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL);
 512
 513         if (!sas_phys || !sas_ports) {
 514                 kfree(sas_phys);
 515                 kfree(sas_ports);
 516                 return -ENOMEM;
 517         }
 518
 519         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
 520         asd_ha->sas_ha.lldd_module = THIS_MODULE;
 521         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
 522
 523         for (i = 0; i < ASD_MAX_PHYS; i++) {
 524                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
 525                 sas_ports[i] = &asd_ha->ports[i];
 526         }
 527
 528         asd_ha->sas_ha.sas_phy = sas_phys;
 529         asd_ha->sas_ha.sas_port= sas_ports;
 530         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
 531
 532         asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
 533         asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num;
 534
 535         return sas_register_ha(&asd_ha->sas_ha);
 536 }
 537
 538 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
 539 {
 540         int err;
 541
 542         err = sas_unregister_ha(&asd_ha->sas_ha);
 543
 544         sas_remove_host(asd_ha->sas_ha.core.shost);
 545         scsi_remove_host(asd_ha->sas_ha.core.shost);
 546         scsi_host_put(asd_ha->sas_ha.core.shost);
 547
 548         kfree(asd_ha->sas_ha.sas_phy);
 549         kfree(asd_ha->sas_ha.sas_port);
 550
 551         return err;
 552 }
 553
 554 static int __devinit asd_pci_probe(struct pci_dev *dev,
 555                                    const struct pci_device_id *id)
 556 {
 557         struct asd_pcidev_struct *asd_dev;
 558         unsigned asd_id = (unsigned) id->driver_data;
 559         struct asd_ha_struct *asd_ha;
 560         struct Scsi_Host *shost;
 561         int err;
 562
 563         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
 564                 asd_printk("wrong driver_data in PCI table\n");
 565                 return -ENODEV;
 566         }
 567
 568         if ((err = pci_enable_device(dev))) {
 569                 asd_printk("couldn't enable device %s\n", pci_name(dev));
 570                 return err;
 571         }
 572
 573         pci_set_master(dev);
 574
 575         err = -ENOMEM;
 576
 577         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
 578         if (!shost)
 579                 goto Err;
 580
 581         asd_dev = &asd_pcidev_data[asd_id];
 582
 583         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
 584         if (!asd_ha) {
 585                 asd_printk("out of memory\n");
 586                 goto Err;
 587         }
 588         asd_ha->pcidev = dev;
 589         asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
 590         asd_ha->sas_ha.lldd_ha = asd_ha;
 591
 592         asd_ha->name = asd_dev->name;
 593         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
 594
 595         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
 596         asd_ha->sas_ha.core.shost = shost;
 597         shost->transportt = aic94xx_transport_template;
 598         shost->max_id = ~0;
 599         shost->max_lun = ~0;
 600         shost->max_cmd_len = 16;
 601
 602         err = scsi_add_host(shost, &dev->dev);
 603         if (err) {
 604                 scsi_host_put(shost);
 605                 goto Err_free;
 606         }
 607
 608         err = asd_dev->setup(asd_ha);
 609         if (err)
 610                 goto Err_free;
 611
 612         err = -ENODEV;
 613         if (!pci_set_dma_mask(dev, DMA_64BIT_MASK)
 614             && !pci_set_consistent_dma_mask(dev, DMA_64BIT_MASK))
 615                 ;
 616         else if (!pci_set_dma_mask(dev, DMA_32BIT_MASK)
 617                  && !pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK))
 618                 ;
 619         else {
 620                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
 621                 goto Err_free;
 622         }
 623
 624         pci_set_drvdata(dev, asd_ha);
 625
 626         err = asd_map_ha(asd_ha);
 627         if (err)
 628                 goto Err_free;
 629
 630         err = asd_create_ha_caches(asd_ha);
 631         if (err)
 632                 goto Err_unmap;
 633
 634         err = asd_init_hw(asd_ha);
 635         if (err)
 636                 goto Err_free_cache;
 637
 638         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
 639                    "phys, flash %s, BIOS %s%d\n",
 640                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
 641                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
 642                    asd_ha->hw_prof.num_phys,
 643                    asd_ha->hw_prof.flash.present ? "present" : "not present",
 644                    asd_ha->hw_prof.bios.present ? "build " : "not present",
 645                    asd_ha->hw_prof.bios.bld);
 646
 647         shost->can_queue = asd_ha->seq.can_queue;
 648
 649         if (use_msi)
 650                 pci_enable_msi(asd_ha->pcidev);
 651
 652         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
 653                           ASD_DRIVER_NAME, asd_ha);
 654         if (err) {
 655                 asd_printk("couldn't get irq %d for %s\n",
 656                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
 657                 goto Err_irq;
 658         }
 659         asd_enable_ints(asd_ha);
 660
 661         err = asd_init_post_escbs(asd_ha);
 662         if (err) {
 663                 asd_printk("couldn't post escbs for %s\n",
 664                            pci_name(asd_ha->pcidev));
 665                 goto Err_escbs;
 666         }
 667         ASD_DPRINTK("escbs posted\n");
 668
 669         err = asd_create_dev_attrs(asd_ha);
 670         if (err)
 671                 goto Err_dev_attrs;
 672
 673         err = asd_register_sas_ha(asd_ha);
 674         if (err)
 675                 goto Err_reg_sas;
 676
 677         scsi_scan_host(shost);
 678
 679         return 0;
 680
 681 Err_reg_sas:
 682         asd_remove_dev_attrs(asd_ha);
 683 Err_dev_attrs:
 684 Err_escbs:
 685         asd_disable_ints(asd_ha);
 686         free_irq(dev->irq, asd_ha);
 687 Err_irq:
 688         if (use_msi)
 689                 pci_disable_msi(dev);
 690         asd_chip_hardrst(asd_ha);
 691 Err_free_cache:
 692         asd_destroy_ha_caches(asd_ha);
 693 Err_unmap:
 694         asd_unmap_ha(asd_ha);
 695 Err_free:
 696         kfree(asd_ha);
 697         scsi_remove_host(shost);
 698 Err:
 699         pci_disable_device(dev);
 700         return err;
 701 }
 702
 703 static void asd_free_queues(struct asd_ha_struct *asd_ha)
 704 {
 705         unsigned long flags;
 706         LIST_HEAD(pending);
 707         struct list_head *n, *pos;
 708
 709         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
 710         asd_ha->seq.pending = 0;
 711         list_splice_init(&asd_ha->seq.pend_q, &pending);
 712         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
 713
 714         if (!list_empty(&pending))
 715                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
 716
 717         list_for_each_safe(pos, n, &pending) {
 718                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
 719                 /*
 720                  * Delete unexpired ascb timers.  This may happen if we issue
 721                  * a CONTROL PHY scb to an adapter and rmmod before the scb
 722                  * times out.  Apparently we don't wait for the CONTROL PHY
 723                  * to complete, so it doesn't matter if we kill the timer.
 724                  */
 725                 del_timer_sync(&ascb->timer);
 726                 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
 727
 728                 list_del_init(pos);
 729                 ASD_DPRINTK("freeing from pending\n");
 730                 asd_ascb_free(ascb);
 731         }
 732 }
 733
 734 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
 735 {
 736         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
 737         u8 i;
 738
 739         for_each_phy(phy_mask, phy_mask, i) {
 740                 asd_turn_led(asd_ha, i, 0);
 741                 asd_control_led(asd_ha, i, 0);
 742         }
 743 }
 744
 745 static void __devexit asd_pci_remove(struct pci_dev *dev)
 746 {
 747         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
 748
 749         if (!asd_ha)
 750                 return;
 751
 752         asd_unregister_sas_ha(asd_ha);
 753
 754         asd_disable_ints(asd_ha);
 755
 756         asd_remove_dev_attrs(asd_ha);
 757
 758         /* XXX more here as needed */
 759
 760         free_irq(dev->irq, asd_ha);
 761         if (use_msi)
 762                 pci_disable_msi(asd_ha->pcidev);
 763         asd_turn_off_leds(asd_ha);
 764         asd_chip_hardrst(asd_ha);
 765         asd_free_queues(asd_ha);
 766         asd_destroy_ha_caches(asd_ha);
 767         asd_unmap_ha(asd_ha);
 768         kfree(asd_ha);
 769         pci_disable_device(dev);
 770         return;
 771 }
 772
 773 static void asd_scan_start(struct Scsi_Host *shost)
 774 {
 775         struct asd_ha_struct *asd_ha;
 776         int err;
 777
 778         asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
 779         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
 780         if (err)
 781                 asd_printk("Couldn't enable phys, err:%d\n", err);
 782 }
 783
 784 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
 785 {
 786         /* give the phy enabling interrupt event time to come in (1s
 787          * is empirically about all it takes) */
 788         if (time < HZ)
 789                 return 0;
 790         /* Wait for discovery to finish */
 791         scsi_flush_work(shost);
 792         return 1;
 793 }
 794
 795 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
 796 {
 797         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
 798 }
 799 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
 800
 801 static int asd_create_driver_attrs(struct device_driver *driver)
 802 {
 803         return driver_create_file(driver, &driver_attr_version);
 804 }
 805
 806 static void asd_remove_driver_attrs(struct device_driver *driver)
 807 {
 808         driver_remove_file(driver, &driver_attr_version);
 809 }
 810
 811 static struct sas_domain_function_template aic94xx_transport_functions = {
 812         .lldd_dev_found         = asd_dev_found,
 813         .lldd_dev_gone          = asd_dev_gone,
 814
 815         .lldd_execute_task      = asd_execute_task,
 816
 817         .lldd_abort_task        = asd_abort_task,
 818         .lldd_abort_task_set    = asd_abort_task_set,
 819         .lldd_clear_aca         = asd_clear_aca,
 820         .lldd_clear_task_set    = asd_clear_task_set,
 821         .lldd_I_T_nexus_reset   = NULL,
 822         .lldd_lu_reset          = asd_lu_reset,
 823         .lldd_query_task        = asd_query_task,
 824
 825         .lldd_clear_nexus_port  = asd_clear_nexus_port,
 826         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
 827
 828         .lldd_control_phy       = asd_control_phy,
 829 };
 830
 831 static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
 832         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR10),
 833          0, 0, 1},
 834         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR12),
 835          0, 0, 1},
 836         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR1E),
 837          0, 0, 1},
 838         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR1F),
 839          0, 0, 1},
 840         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR30),
 841          0, 0, 2},
 842         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR32),
 843          0, 0, 2},
 844         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3E),
 845          0, 0, 2},
 846         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3F),
 847          0, 0, 2},
 848         {}
 849 };
 850
 851 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
 852
 853 static struct pci_driver aic94xx_pci_driver = {
 854         .name           = ASD_DRIVER_NAME,
 855         .id_table       = aic94xx_pci_table,
 856         .probe          = asd_pci_probe,
 857         .remove         = __devexit_p(asd_pci_remove),
 858 };
 859
 860 static int __init aic94xx_init(void)
 861 {
 862         int err;
 863
 864
 865         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
 866                    ASD_DRIVER_VERSION);
 867
 868         err = asd_create_global_caches();
 869         if (err)
 870                 return err;
 871
 872         aic94xx_transport_template =
 873                 sas_domain_attach_transport(&aic94xx_transport_functions);
 874         if (!aic94xx_transport_template)
 875                 goto out_destroy_caches;
 876
 877         err = pci_register_driver(&aic94xx_pci_driver);
 878         if (err)
 879                 goto out_release_transport;
 880
 881         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
 882         if (err)
 883                 goto out_unregister_pcidrv;
 884
 885         return err;
 886
 887  out_unregister_pcidrv:
 888         pci_unregister_driver(&aic94xx_pci_driver);
 889  out_release_transport:
 890         sas_release_transport(aic94xx_transport_template);
 891  out_destroy_caches:
 892         asd_destroy_global_caches();
 893
 894         return err;
 895 }
 896
 897 static void __exit aic94xx_exit(void)
 898 {
 899         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
 900         pci_unregister_driver(&aic94xx_pci_driver);
 901         sas_release_transport(aic94xx_transport_template);
 902         asd_release_firmware();
 903         asd_destroy_global_caches();
 904         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
 905                    ASD_DRIVER_VERSION);
 906 }
 907
 908 module_init(aic94xx_init);
 909 module_exit(aic94xx_exit);
 910
 911 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
 912 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
 913 MODULE_LICENSE("GPL v2");
 914 MODULE_VERSION(ASD_DRIVER_VERSION);