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/config.h>
  28 #include <linux/module.h>
  29 #include <linux/init.h>
  30 #include <linux/kernel.h>
  31 #include <linux/pci.h>
  32 #include <linux/delay.h>
  33
  34 #include <scsi/scsi_host.h>
  35
  36 #include "aic94xx.h"
  37 #include "aic94xx_reg.h"
  38 #include "aic94xx_hwi.h"
  39 #include "aic94xx_seq.h"
  40
  41 /* The format is "version.release.patchlevel" */
  42 #define ASD_DRIVER_VERSION "1.0.2"
  43
  44 static int use_msi = 0;
  45 module_param_named(use_msi, use_msi, int, S_IRUGO);
  46 MODULE_PARM_DESC(use_msi, "\n"
  47         "\tEnable(1) or disable(0) using PCI MSI.\n"
  48         "\tDefault: 0");
  49
  50 static int lldd_max_execute_num = 0;
  51 module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
  52 MODULE_PARM_DESC(collector, "\n"
  53         "\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
  54         "\tMode.  If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
  55         "\tThe aic94xx SAS LLDD supports both modes.\n"
  56         "\tDefault: 0 (Direct Mode).\n");
  57
  58 char sas_addr_str[2*SAS_ADDR_SIZE + 1] = "";
  59
  60 static struct scsi_transport_template *aic94xx_transport_template;
  61
  62 static struct scsi_host_template aic94xx_sht = {
  63         .module                 = THIS_MODULE,
  64         /* .name is initialized */
  65         .name                   = "aic94xx",
  66         .queuecommand           = sas_queuecommand,
  67         .target_alloc           = sas_target_alloc,
  68         .slave_configure        = sas_slave_configure,
  69         .slave_destroy          = sas_slave_destroy,
  70         .change_queue_depth     = sas_change_queue_depth,
  71         .change_queue_type      = sas_change_queue_type,
  72         .bios_param             = sas_bios_param,
  73         .can_queue              = 1,
  74         .cmd_per_lun            = 1,
  75         .this_id                = -1,
  76         .sg_tablesize           = SG_ALL,
  77         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
  78         .use_clustering         = ENABLE_CLUSTERING,
  79 };
  80
  81 static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
  82 {
  83         int err, i;
  84         struct asd_ha_addrspace *io_handle;
  85
  86         asd_ha->iospace = 0;
  87         for (i = 0; i < 3; i += 2) {
  88                 io_handle = &asd_ha->io_handle[i==0?0:1];
  89                 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
  90                 io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
  91                 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
  92                 err = -ENODEV;
  93                 if (!io_handle->start || !io_handle->len) {
  94                         asd_printk("MBAR%d start or length for %s is 0.\n",
  95                                    i==0?0:1, pci_name(asd_ha->pcidev));
  96                         goto Err;
  97                 }
  98                 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
  99                 if (err) {
 100                         asd_printk("couldn't reserve memory region for %s\n",
 101                                    pci_name(asd_ha->pcidev));
 102                         goto Err;
 103                 }
 104                 if (io_handle->flags & IORESOURCE_CACHEABLE)
 105                         io_handle->addr = ioremap(io_handle->start,
 106                                                   io_handle->len);
 107                 else
 108                         io_handle->addr = ioremap_nocache(io_handle->start,
 109                                                           io_handle->len);
 110                 if (!io_handle->addr) {
 111                         asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
 112                                    pci_name(asd_ha->pcidev));
 113                         goto Err_unreq;
 114                 }
 115         }
 116
 117         return 0;
 118 Err_unreq:
 119         pci_release_region(asd_ha->pcidev, i);
 120 Err:
 121         if (i > 0) {
 122                 io_handle = &asd_ha->io_handle[0];
 123                 iounmap(io_handle->addr);
 124                 pci_release_region(asd_ha->pcidev, 0);
 125         }
 126         return err;
 127 }
 128
 129 static void __devexit asd_unmap_memio(struct asd_ha_struct *asd_ha)
 130 {
 131         struct asd_ha_addrspace *io_handle;
 132
 133         io_handle = &asd_ha->io_handle[1];
 134         iounmap(io_handle->addr);
 135         pci_release_region(asd_ha->pcidev, 2);
 136
 137         io_handle = &asd_ha->io_handle[0];
 138         iounmap(io_handle->addr);
 139         pci_release_region(asd_ha->pcidev, 0);
 140 }
 141
 142 static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
 143 {
 144         int i = PCI_IOBAR_OFFSET, err;
 145         struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
 146
 147         asd_ha->iospace = 1;
 148         io_handle->start = pci_resource_start(asd_ha->pcidev, i);
 149         io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 150         io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 151         io_handle->addr  = (void __iomem *) io_handle->start;
 152         if (!io_handle->start || !io_handle->len) {
 153                 asd_printk("couldn't get IO ports for %s\n",
 154                            pci_name(asd_ha->pcidev));
 155                 return -ENODEV;
 156         }
 157         err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 158         if (err) {
 159                 asd_printk("couldn't reserve io space for %s\n",
 160                            pci_name(asd_ha->pcidev));
 161         }
 162
 163         return err;
 164 }
 165
 166 static void __devexit asd_unmap_ioport(struct asd_ha_struct *asd_ha)
 167 {
 168         pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
 169 }
 170
 171 static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
 172 {
 173         int err;
 174         u16 cmd_reg;
 175
 176         err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
 177         if (err) {
 178                 asd_printk("couldn't read command register of %s\n",
 179                            pci_name(asd_ha->pcidev));
 180                 goto Err;
 181         }
 182
 183         err = -ENODEV;
 184         if (cmd_reg & PCI_COMMAND_MEMORY) {
 185                 if ((err = asd_map_memio(asd_ha)))
 186                         goto Err;
 187         } else if (cmd_reg & PCI_COMMAND_IO) {
 188                 if ((err = asd_map_ioport(asd_ha)))
 189                         goto Err;
 190                 asd_printk("%s ioport mapped -- upgrade your hardware\n",
 191                            pci_name(asd_ha->pcidev));
 192         } else {
 193                 asd_printk("no proper device access to %s\n",
 194                            pci_name(asd_ha->pcidev));
 195                 goto Err;
 196         }
 197
 198         return 0;
 199 Err:
 200         return err;
 201 }
 202
 203 static void __devexit asd_unmap_ha(struct asd_ha_struct *asd_ha)
 204 {
 205         if (asd_ha->iospace)
 206                 asd_unmap_ioport(asd_ha);
 207         else
 208                 asd_unmap_memio(asd_ha);
 209 }
 210
 211 static const char *asd_dev_rev[30] = {
 212         [0] = "A0",
 213         [1] = "A1",
 214         [8] = "B0",
 215 };
 216
 217 static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
 218 {
 219         int err, i;
 220
 221         err = pci_read_config_byte(asd_ha->pcidev, PCI_REVISION_ID,
 222                                    &asd_ha->revision_id);
 223         if (err) {
 224                 asd_printk("couldn't read REVISION ID register of %s\n",
 225                            pci_name(asd_ha->pcidev));
 226                 goto Err;
 227         }
 228         err = -ENODEV;
 229         if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
 230                 asd_printk("%s is revision %s (%X), which is not supported\n",
 231                            pci_name(asd_ha->pcidev),
 232                            asd_dev_rev[asd_ha->revision_id],
 233                            asd_ha->revision_id);
 234                 goto Err;
 235         }
 236         /* Provide some sane default values. */
 237         asd_ha->hw_prof.max_scbs = 512;
 238         asd_ha->hw_prof.max_ddbs = 128;
 239         asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
 240         /* All phys are enabled, by default. */
 241         asd_ha->hw_prof.enabled_phys = 0xFF;
 242         for (i = 0; i < ASD_MAX_PHYS; i++) {
 243                 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
 244                         SAS_LINK_RATE_3_0_GBPS;
 245                 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
 246                         SAS_LINK_RATE_1_5_GBPS;
 247                 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
 248                         SAS_LINK_RATE_1_5_GBPS;
 249                 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
 250                         SAS_LINK_RATE_1_5_GBPS;
 251         }
 252
 253         return 0;
 254 Err:
 255         return err;
 256 }
 257
 258 static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
 259 {
 260         int err = asd_common_setup(asd_ha);
 261
 262         if (err)
 263                 return err;
 264
 265         asd_ha->hw_prof.addr_range = 8;
 266         asd_ha->hw_prof.port_name_base = 0;
 267         asd_ha->hw_prof.dev_name_base = 8;
 268         asd_ha->hw_prof.sata_name_base = 16;
 269
 270         return 0;
 271 }
 272
 273 static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
 274 {
 275         int err = asd_common_setup(asd_ha);
 276
 277         if (err)
 278                 return err;
 279
 280         asd_ha->hw_prof.addr_range = 4;
 281         asd_ha->hw_prof.port_name_base = 0;
 282         asd_ha->hw_prof.dev_name_base = 4;
 283         asd_ha->hw_prof.sata_name_base = 8;
 284
 285         return 0;
 286 }
 287
 288 static ssize_t asd_show_dev_rev(struct device *dev,
 289                                 struct device_attribute *attr, char *buf)
 290 {
 291         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 292         return snprintf(buf, PAGE_SIZE, "%s\n",
 293                         asd_dev_rev[asd_ha->revision_id]);
 294 }
 295 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
 296
 297 static ssize_t asd_show_dev_bios_build(struct device *dev,
 298                                        struct device_attribute *attr,char *buf)
 299 {
 300         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 301         return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
 302 }
 303 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
 304
 305 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
 306                                     struct device_attribute *attr, char *buf)
 307 {
 308         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 309         return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
 310 }
 311 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
 312
 313 static void asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
 314 {
 315         device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 316         device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 317         device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 318 }
 319
 320 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
 321 {
 322         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 323         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 324         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 325 }
 326
 327 /* The first entry, 0, is used for dynamic ids, the rest for devices
 328  * we know about.
 329  */
 330 static struct asd_pcidev_struct {
 331         const char * name;
 332         int (*setup)(struct asd_ha_struct *asd_ha);
 333 } asd_pcidev_data[] = {
 334         /* Id 0 is used for dynamic ids. */
 335         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
 336           .setup = asd_aic9410_setup
 337         },
 338         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
 339           .setup = asd_aic9410_setup
 340         },
 341         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
 342           .setup = asd_aic9405_setup
 343         },
 344 };
 345
 346 static inline int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
 347 {
 348         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
 349                                            &asd_ha->pcidev->dev,
 350                                            sizeof(struct scb),
 351                                            8, 0);
 352         if (!asd_ha->scb_pool) {
 353                 asd_printk("couldn't create scb pool\n");
 354                 return -ENOMEM;
 355         }
 356
 357         return 0;
 358 }
 359
 360 /**
 361  * asd_free_edbs -- free empty data buffers
 362  * asd_ha: pointer to host adapter structure
 363  */
 364 static inline void asd_free_edbs(struct asd_ha_struct *asd_ha)
 365 {
 366         struct asd_seq_data *seq = &asd_ha->seq;
 367         int i;
 368
 369         for (i = 0; i < seq->num_edbs; i++)
 370                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
 371         kfree(seq->edb_arr);
 372         seq->edb_arr = NULL;
 373 }
 374
 375 static inline void asd_free_escbs(struct asd_ha_struct *asd_ha)
 376 {
 377         struct asd_seq_data *seq = &asd_ha->seq;
 378         int i;
 379
 380         for (i = 0; i < seq->num_escbs; i++) {
 381                 if (!list_empty(&seq->escb_arr[i]->list))
 382                         list_del_init(&seq->escb_arr[i]->list);
 383
 384                 asd_ascb_free(seq->escb_arr[i]);
 385         }
 386         kfree(seq->escb_arr);
 387         seq->escb_arr = NULL;
 388 }
 389
 390 static inline void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
 391 {
 392         int i;
 393
 394         if (asd_ha->hw_prof.ddb_ext)
 395                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
 396         if (asd_ha->hw_prof.scb_ext)
 397                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
 398
 399         if (asd_ha->hw_prof.ddb_bitmap)
 400                 kfree(asd_ha->hw_prof.ddb_bitmap);
 401         asd_ha->hw_prof.ddb_bitmap = NULL;
 402
 403         for (i = 0; i < ASD_MAX_PHYS; i++) {
 404                 struct asd_phy *phy = &asd_ha->phys[i];
 405
 406                 asd_free_coherent(asd_ha, phy->id_frm_tok);
 407         }
 408         if (asd_ha->seq.escb_arr)
 409                 asd_free_escbs(asd_ha);
 410         if (asd_ha->seq.edb_arr)
 411                 asd_free_edbs(asd_ha);
 412         if (asd_ha->hw_prof.ue.area) {
 413                 kfree(asd_ha->hw_prof.ue.area);
 414                 asd_ha->hw_prof.ue.area = NULL;
 415         }
 416         if (asd_ha->seq.tc_index_array) {
 417                 kfree(asd_ha->seq.tc_index_array);
 418                 kfree(asd_ha->seq.tc_index_bitmap);
 419                 asd_ha->seq.tc_index_array = NULL;
 420                 asd_ha->seq.tc_index_bitmap = NULL;
 421         }
 422         if (asd_ha->seq.actual_dl) {
 423                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
 424                         asd_ha->seq.actual_dl = NULL;
 425                         asd_ha->seq.dl = NULL;
 426         }
 427         if (asd_ha->seq.next_scb.vaddr) {
 428                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
 429                               asd_ha->seq.next_scb.dma_handle);
 430                 asd_ha->seq.next_scb.vaddr = NULL;
 431         }
 432         dma_pool_destroy(asd_ha->scb_pool);
 433         asd_ha->scb_pool = NULL;
 434 }
 435
 436 kmem_cache_t *asd_dma_token_cache;
 437 kmem_cache_t *asd_ascb_cache;
 438
 439 static int asd_create_global_caches(void)
 440 {
 441         if (!asd_dma_token_cache) {
 442                 asd_dma_token_cache
 443                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
 444                                             sizeof(struct asd_dma_tok),
 445                                             0,
 446                                             SLAB_HWCACHE_ALIGN,
 447                                             NULL, NULL);
 448                 if (!asd_dma_token_cache) {
 449                         asd_printk("couldn't create dma token cache\n");
 450                         return -ENOMEM;
 451                 }
 452         }
 453
 454         if (!asd_ascb_cache) {
 455                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
 456                                                    sizeof(struct asd_ascb),
 457                                                    0,
 458                                                    SLAB_HWCACHE_ALIGN,
 459                                                    NULL, NULL);
 460                 if (!asd_ascb_cache) {
 461                         asd_printk("couldn't create ascb cache\n");
 462                         goto Err;
 463                 }
 464         }
 465
 466         return 0;
 467 Err:
 468         kmem_cache_destroy(asd_dma_token_cache);
 469         asd_dma_token_cache = NULL;
 470         return -ENOMEM;
 471 }
 472
 473 static void asd_destroy_global_caches(void)
 474 {
 475         if (asd_dma_token_cache)
 476                 kmem_cache_destroy(asd_dma_token_cache);
 477         asd_dma_token_cache = NULL;
 478
 479         if (asd_ascb_cache)
 480                 kmem_cache_destroy(asd_ascb_cache);
 481         asd_ascb_cache = NULL;
 482 }
 483
 484 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
 485 {
 486         int i;
 487         struct asd_sas_phy   **sas_phys =
 488                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL);
 489         struct asd_sas_port  **sas_ports =
 490                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL);
 491
 492         if (!sas_phys || !sas_ports) {
 493                 kfree(sas_phys);
 494                 kfree(sas_ports);
 495                 return -ENOMEM;
 496         }
 497
 498         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
 499         asd_ha->sas_ha.lldd_module = THIS_MODULE;
 500         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
 501
 502         for (i = 0; i < ASD_MAX_PHYS; i++) {
 503                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
 504                 sas_ports[i] = &asd_ha->ports[i];
 505         }
 506
 507         asd_ha->sas_ha.sas_phy = sas_phys;
 508         asd_ha->sas_ha.sas_port= sas_ports;
 509         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
 510
 511         asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
 512
 513         return sas_register_ha(&asd_ha->sas_ha);
 514 }
 515
 516 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
 517 {
 518         int err;
 519
 520         err = sas_unregister_ha(&asd_ha->sas_ha);
 521
 522         sas_remove_host(asd_ha->sas_ha.core.shost);
 523         scsi_remove_host(asd_ha->sas_ha.core.shost);
 524         scsi_host_put(asd_ha->sas_ha.core.shost);
 525
 526         kfree(asd_ha->sas_ha.sas_phy);
 527         kfree(asd_ha->sas_ha.sas_port);
 528
 529         return err;
 530 }
 531
 532 static int __devinit asd_pci_probe(struct pci_dev *dev,
 533                                    const struct pci_device_id *id)
 534 {
 535         struct asd_pcidev_struct *asd_dev;
 536         unsigned asd_id = (unsigned) id->driver_data;
 537         struct asd_ha_struct *asd_ha;
 538         struct Scsi_Host *shost;
 539         int err;
 540
 541         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
 542                 asd_printk("wrong driver_data in PCI table\n");
 543                 return -ENODEV;
 544         }
 545
 546         if ((err = pci_enable_device(dev))) {
 547                 asd_printk("couldn't enable device %s\n", pci_name(dev));
 548                 return err;
 549         }
 550
 551         pci_set_master(dev);
 552
 553         err = -ENOMEM;
 554
 555         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
 556         if (!shost)
 557                 goto Err;
 558
 559         asd_dev = &asd_pcidev_data[asd_id];
 560
 561         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
 562         if (!asd_ha) {
 563                 asd_printk("out of memory\n");
 564                 goto Err;
 565         }
 566         asd_ha->pcidev = dev;
 567         asd_ha->sas_ha.pcidev = asd_ha->pcidev;
 568         asd_ha->sas_ha.lldd_ha = asd_ha;
 569
 570         asd_ha->name = asd_dev->name;
 571         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
 572
 573         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
 574         asd_ha->sas_ha.core.shost = shost;
 575         shost->transportt = aic94xx_transport_template;
 576         shost->max_id = ~0;
 577         shost->max_lun = ~0;
 578         shost->max_cmd_len = 16;
 579
 580         err = scsi_add_host(shost, &dev->dev);
 581         if (err) {
 582                 scsi_host_put(shost);
 583                 goto Err_free;
 584         }
 585
 586
 587
 588         err = asd_dev->setup(asd_ha);
 589         if (err)
 590                 goto Err_free;
 591
 592         err = -ENODEV;
 593         if (!pci_set_dma_mask(dev, DMA_64BIT_MASK)
 594             && !pci_set_consistent_dma_mask(dev, DMA_64BIT_MASK))
 595                 ;
 596         else if (!pci_set_dma_mask(dev, DMA_32BIT_MASK)
 597                  && !pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK))
 598                 ;
 599         else {
 600                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
 601                 goto Err_free;
 602         }
 603
 604         pci_set_drvdata(dev, asd_ha);
 605
 606         err = asd_map_ha(asd_ha);
 607         if (err)
 608                 goto Err_free;
 609
 610         err = asd_create_ha_caches(asd_ha);
 611         if (err)
 612                 goto Err_unmap;
 613
 614         err = asd_init_hw(asd_ha);
 615         if (err)
 616                 goto Err_free_cache;
 617
 618         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
 619                    "phys, flash %s, BIOS %s%d\n",
 620                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
 621                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
 622                    asd_ha->hw_prof.num_phys,
 623                    asd_ha->hw_prof.flash.present ? "present" : "not present",
 624                    asd_ha->hw_prof.bios.present ? "build " : "not present",
 625                    asd_ha->hw_prof.bios.bld);
 626
 627         shost->can_queue = asd_ha->seq.can_queue;
 628
 629         if (use_msi)
 630                 pci_enable_msi(asd_ha->pcidev);
 631
 632         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, SA_SHIRQ,
 633                           ASD_DRIVER_NAME, asd_ha);
 634         if (err) {
 635                 asd_printk("couldn't get irq %d for %s\n",
 636                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
 637                 goto Err_irq;
 638         }
 639         asd_enable_ints(asd_ha);
 640
 641         err = asd_init_post_escbs(asd_ha);
 642         if (err) {
 643                 asd_printk("couldn't post escbs for %s\n",
 644                            pci_name(asd_ha->pcidev));
 645                 goto Err_escbs;
 646         }
 647         ASD_DPRINTK("escbs posted\n");
 648
 649         asd_create_dev_attrs(asd_ha);
 650
 651         err = asd_register_sas_ha(asd_ha);
 652         if (err)
 653                 goto Err_reg_sas;
 654
 655         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
 656         if (err) {
 657                 asd_printk("coudln't enable phys, err:%d\n", err);
 658                 goto Err_en_phys;
 659         }
 660         ASD_DPRINTK("enabled phys\n");
 661         /* give the phy enabling interrupt event time to come in (1s
 662          * is empirically about all it takes) */
 663         ssleep(1);
 664         /* Wait for discovery to finish */
 665         scsi_flush_work(asd_ha->sas_ha.core.shost);
 666
 667         return 0;
 668 Err_en_phys:
 669         asd_unregister_sas_ha(asd_ha);
 670 Err_reg_sas:
 671         asd_remove_dev_attrs(asd_ha);
 672 Err_escbs:
 673         asd_disable_ints(asd_ha);
 674         free_irq(dev->irq, asd_ha);
 675 Err_irq:
 676         if (use_msi)
 677                 pci_disable_msi(dev);
 678         asd_chip_hardrst(asd_ha);
 679 Err_free_cache:
 680         asd_destroy_ha_caches(asd_ha);
 681 Err_unmap:
 682         asd_unmap_ha(asd_ha);
 683 Err_free:
 684         kfree(asd_ha);
 685         scsi_remove_host(shost);
 686 Err:
 687         pci_disable_device(dev);
 688         return err;
 689 }
 690
 691 static void asd_free_queues(struct asd_ha_struct *asd_ha)
 692 {
 693         unsigned long flags;
 694         LIST_HEAD(pending);
 695         struct list_head *n, *pos;
 696
 697         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
 698         asd_ha->seq.pending = 0;
 699         list_splice_init(&asd_ha->seq.pend_q, &pending);
 700         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
 701
 702         if (!list_empty(&pending))
 703                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
 704
 705         list_for_each_safe(pos, n, &pending) {
 706                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
 707                 list_del_init(pos);
 708                 ASD_DPRINTK("freeing from pending\n");
 709                 asd_ascb_free(ascb);
 710         }
 711 }
 712
 713 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
 714 {
 715         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
 716         u8 i;
 717
 718         for_each_phy(phy_mask, phy_mask, i) {
 719                 asd_turn_led(asd_ha, i, 0);
 720                 asd_control_led(asd_ha, i, 0);
 721         }
 722 }
 723
 724 static void __devexit asd_pci_remove(struct pci_dev *dev)
 725 {
 726         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
 727
 728         if (!asd_ha)
 729                 return;
 730
 731         asd_unregister_sas_ha(asd_ha);
 732
 733         asd_disable_ints(asd_ha);
 734
 735         asd_remove_dev_attrs(asd_ha);
 736
 737         /* XXX more here as needed */
 738
 739         free_irq(dev->irq, asd_ha);
 740         if (use_msi)
 741                 pci_disable_msi(asd_ha->pcidev);
 742         asd_turn_off_leds(asd_ha);
 743         asd_chip_hardrst(asd_ha);
 744         asd_free_queues(asd_ha);
 745         asd_destroy_ha_caches(asd_ha);
 746         asd_unmap_ha(asd_ha);
 747         kfree(asd_ha);
 748         pci_disable_device(dev);
 749         return;
 750 }
 751
 752 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
 753 {
 754         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
 755 }
 756 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
 757
 758 static void asd_create_driver_attrs(struct device_driver *driver)
 759 {
 760         driver_create_file(driver, &driver_attr_version);
 761 }
 762
 763 static void asd_remove_driver_attrs(struct device_driver *driver)
 764 {
 765         driver_remove_file(driver, &driver_attr_version);
 766 }
 767
 768 static struct sas_domain_function_template aic94xx_transport_functions = {
 769         .lldd_port_formed       = asd_update_port_links,
 770
 771         .lldd_dev_found         = asd_dev_found,
 772         .lldd_dev_gone          = asd_dev_gone,
 773
 774         .lldd_execute_task      = asd_execute_task,
 775
 776         .lldd_abort_task        = asd_abort_task,
 777         .lldd_abort_task_set    = asd_abort_task_set,
 778         .lldd_clear_aca         = asd_clear_aca,
 779         .lldd_clear_task_set    = asd_clear_task_set,
 780         .lldd_I_T_nexus_reset   = NULL,
 781         .lldd_lu_reset          = asd_lu_reset,
 782         .lldd_query_task        = asd_query_task,
 783
 784         .lldd_clear_nexus_port  = asd_clear_nexus_port,
 785         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
 786
 787         .lldd_control_phy       = asd_control_phy,
 788 };
 789
 790 static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
 791         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR10),
 792          0, 0, 1},
 793         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR12),
 794          0, 0, 1},
 795         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR1E),
 796          0, 0, 1},
 797         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR30),
 798          0, 0, 2},
 799         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR32),
 800          0, 0, 2},
 801         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3E),
 802          0, 0, 2},
 803         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3F),
 804          0, 0, 2},
 805         {}
 806 };
 807
 808 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
 809
 810 static struct pci_driver aic94xx_pci_driver = {
 811         .name           = ASD_DRIVER_NAME,
 812         .id_table       = aic94xx_pci_table,
 813         .probe          = asd_pci_probe,
 814         .remove         = __devexit_p(asd_pci_remove),
 815 };
 816
 817 static int __init aic94xx_init(void)
 818 {
 819         int err;
 820
 821
 822         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
 823                    ASD_DRIVER_VERSION);
 824
 825         err = asd_create_global_caches();
 826         if (err)
 827                 return err;
 828
 829         aic94xx_transport_template =
 830                 sas_domain_attach_transport(&aic94xx_transport_functions);
 831         if (!aic94xx_transport_template)
 832                 goto out_destroy_caches;
 833
 834         err = pci_register_driver(&aic94xx_pci_driver);
 835         if (err)
 836                 goto out_release_transport;
 837
 838         asd_create_driver_attrs(&aic94xx_pci_driver.driver);
 839
 840         return err;
 841
 842  out_release_transport:
 843         sas_release_transport(aic94xx_transport_template);
 844  out_destroy_caches:
 845         asd_destroy_global_caches();
 846
 847         return err;
 848 }
 849
 850 static void __exit aic94xx_exit(void)
 851 {
 852         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
 853         pci_unregister_driver(&aic94xx_pci_driver);
 854         sas_release_transport(aic94xx_transport_template);
 855         asd_destroy_global_caches();
 856         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
 857                    ASD_DRIVER_VERSION);
 858 }
 859
 860 module_init(aic94xx_init);
 861 module_exit(aic94xx_exit);
 862
 863 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
 864 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
 865 MODULE_LICENSE("GPL v2");
 866 MODULE_VERSION(ASD_DRIVER_VERSION);