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 int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
 314 {
 315         int err;
 316
 317         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 318         if (err)
 319                 return err;
 320
 321         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 322         if (err)
 323                 goto err_rev;
 324
 325         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 326         if (err)
 327                 goto err_biosb;
 328
 329         return 0;
 330
 331 err_biosb:
 332         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 333 err_rev:
 334         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 335         return err;
 336 }
 337
 338 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
 339 {
 340         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 341         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 342         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 343 }
 344
 345 /* The first entry, 0, is used for dynamic ids, the rest for devices
 346  * we know about.
 347  */
 348 static struct asd_pcidev_struct {
 349         const char * name;
 350         int (*setup)(struct asd_ha_struct *asd_ha);
 351 } asd_pcidev_data[] = {
 352         /* Id 0 is used for dynamic ids. */
 353         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
 354           .setup = asd_aic9410_setup
 355         },
 356         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
 357           .setup = asd_aic9410_setup
 358         },
 359         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
 360           .setup = asd_aic9405_setup
 361         },
 362 };
 363
 364 static inline int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
 365 {
 366         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
 367                                            &asd_ha->pcidev->dev,
 368                                            sizeof(struct scb),
 369                                            8, 0);
 370         if (!asd_ha->scb_pool) {
 371                 asd_printk("couldn't create scb pool\n");
 372                 return -ENOMEM;
 373         }
 374
 375         return 0;
 376 }
 377
 378 /**
 379  * asd_free_edbs -- free empty data buffers
 380  * asd_ha: pointer to host adapter structure
 381  */
 382 static inline void asd_free_edbs(struct asd_ha_struct *asd_ha)
 383 {
 384         struct asd_seq_data *seq = &asd_ha->seq;
 385         int i;
 386
 387         for (i = 0; i < seq->num_edbs; i++)
 388                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
 389         kfree(seq->edb_arr);
 390         seq->edb_arr = NULL;
 391 }
 392
 393 static inline void asd_free_escbs(struct asd_ha_struct *asd_ha)
 394 {
 395         struct asd_seq_data *seq = &asd_ha->seq;
 396         int i;
 397
 398         for (i = 0; i < seq->num_escbs; i++) {
 399                 if (!list_empty(&seq->escb_arr[i]->list))
 400                         list_del_init(&seq->escb_arr[i]->list);
 401
 402                 asd_ascb_free(seq->escb_arr[i]);
 403         }
 404         kfree(seq->escb_arr);
 405         seq->escb_arr = NULL;
 406 }
 407
 408 static inline void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
 409 {
 410         int i;
 411
 412         if (asd_ha->hw_prof.ddb_ext)
 413                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
 414         if (asd_ha->hw_prof.scb_ext)
 415                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
 416
 417         if (asd_ha->hw_prof.ddb_bitmap)
 418                 kfree(asd_ha->hw_prof.ddb_bitmap);
 419         asd_ha->hw_prof.ddb_bitmap = NULL;
 420
 421         for (i = 0; i < ASD_MAX_PHYS; i++) {
 422                 struct asd_phy *phy = &asd_ha->phys[i];
 423
 424                 asd_free_coherent(asd_ha, phy->id_frm_tok);
 425         }
 426         if (asd_ha->seq.escb_arr)
 427                 asd_free_escbs(asd_ha);
 428         if (asd_ha->seq.edb_arr)
 429                 asd_free_edbs(asd_ha);
 430         if (asd_ha->hw_prof.ue.area) {
 431                 kfree(asd_ha->hw_prof.ue.area);
 432                 asd_ha->hw_prof.ue.area = NULL;
 433         }
 434         if (asd_ha->seq.tc_index_array) {
 435                 kfree(asd_ha->seq.tc_index_array);
 436                 kfree(asd_ha->seq.tc_index_bitmap);
 437                 asd_ha->seq.tc_index_array = NULL;
 438                 asd_ha->seq.tc_index_bitmap = NULL;
 439         }
 440         if (asd_ha->seq.actual_dl) {
 441                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
 442                         asd_ha->seq.actual_dl = NULL;
 443                         asd_ha->seq.dl = NULL;
 444         }
 445         if (asd_ha->seq.next_scb.vaddr) {
 446                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
 447                               asd_ha->seq.next_scb.dma_handle);
 448                 asd_ha->seq.next_scb.vaddr = NULL;
 449         }
 450         dma_pool_destroy(asd_ha->scb_pool);
 451         asd_ha->scb_pool = NULL;
 452 }
 453
 454 kmem_cache_t *asd_dma_token_cache;
 455 kmem_cache_t *asd_ascb_cache;
 456
 457 static int asd_create_global_caches(void)
 458 {
 459         if (!asd_dma_token_cache) {
 460                 asd_dma_token_cache
 461                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
 462                                             sizeof(struct asd_dma_tok),
 463                                             0,
 464                                             SLAB_HWCACHE_ALIGN,
 465                                             NULL, NULL);
 466                 if (!asd_dma_token_cache) {
 467                         asd_printk("couldn't create dma token cache\n");
 468                         return -ENOMEM;
 469                 }
 470         }
 471
 472         if (!asd_ascb_cache) {
 473                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
 474                                                    sizeof(struct asd_ascb),
 475                                                    0,
 476                                                    SLAB_HWCACHE_ALIGN,
 477                                                    NULL, NULL);
 478                 if (!asd_ascb_cache) {
 479                         asd_printk("couldn't create ascb cache\n");
 480                         goto Err;
 481                 }
 482         }
 483
 484         return 0;
 485 Err:
 486         kmem_cache_destroy(asd_dma_token_cache);
 487         asd_dma_token_cache = NULL;
 488         return -ENOMEM;
 489 }
 490
 491 static void asd_destroy_global_caches(void)
 492 {
 493         if (asd_dma_token_cache)
 494                 kmem_cache_destroy(asd_dma_token_cache);
 495         asd_dma_token_cache = NULL;
 496
 497         if (asd_ascb_cache)
 498                 kmem_cache_destroy(asd_ascb_cache);
 499         asd_ascb_cache = NULL;
 500 }
 501
 502 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
 503 {
 504         int i;
 505         struct asd_sas_phy   **sas_phys =
 506                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL);
 507         struct asd_sas_port  **sas_ports =
 508                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL);
 509
 510         if (!sas_phys || !sas_ports) {
 511                 kfree(sas_phys);
 512                 kfree(sas_ports);
 513                 return -ENOMEM;
 514         }
 515
 516         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
 517         asd_ha->sas_ha.lldd_module = THIS_MODULE;
 518         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
 519
 520         for (i = 0; i < ASD_MAX_PHYS; i++) {
 521                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
 522                 sas_ports[i] = &asd_ha->ports[i];
 523         }
 524
 525         asd_ha->sas_ha.sas_phy = sas_phys;
 526         asd_ha->sas_ha.sas_port= sas_ports;
 527         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
 528
 529         asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
 530
 531         return sas_register_ha(&asd_ha->sas_ha);
 532 }
 533
 534 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
 535 {
 536         int err;
 537
 538         err = sas_unregister_ha(&asd_ha->sas_ha);
 539
 540         sas_remove_host(asd_ha->sas_ha.core.shost);
 541         scsi_remove_host(asd_ha->sas_ha.core.shost);
 542         scsi_host_put(asd_ha->sas_ha.core.shost);
 543
 544         kfree(asd_ha->sas_ha.sas_phy);
 545         kfree(asd_ha->sas_ha.sas_port);
 546
 547         return err;
 548 }
 549
 550 static int __devinit asd_pci_probe(struct pci_dev *dev,
 551                                    const struct pci_device_id *id)
 552 {
 553         struct asd_pcidev_struct *asd_dev;
 554         unsigned asd_id = (unsigned) id->driver_data;
 555         struct asd_ha_struct *asd_ha;
 556         struct Scsi_Host *shost;
 557         int err;
 558
 559         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
 560                 asd_printk("wrong driver_data in PCI table\n");
 561                 return -ENODEV;
 562         }
 563
 564         if ((err = pci_enable_device(dev))) {
 565                 asd_printk("couldn't enable device %s\n", pci_name(dev));
 566                 return err;
 567         }
 568
 569         pci_set_master(dev);
 570
 571         err = -ENOMEM;
 572
 573         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
 574         if (!shost)
 575                 goto Err;
 576
 577         asd_dev = &asd_pcidev_data[asd_id];
 578
 579         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
 580         if (!asd_ha) {
 581                 asd_printk("out of memory\n");
 582                 goto Err;
 583         }
 584         asd_ha->pcidev = dev;
 585         asd_ha->sas_ha.pcidev = asd_ha->pcidev;
 586         asd_ha->sas_ha.lldd_ha = asd_ha;
 587
 588         asd_ha->name = asd_dev->name;
 589         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
 590
 591         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
 592         asd_ha->sas_ha.core.shost = shost;
 593         shost->transportt = aic94xx_transport_template;
 594         shost->max_id = ~0;
 595         shost->max_lun = ~0;
 596         shost->max_cmd_len = 16;
 597
 598         err = scsi_add_host(shost, &dev->dev);
 599         if (err) {
 600                 scsi_host_put(shost);
 601                 goto Err_free;
 602         }
 603
 604
 605
 606         err = asd_dev->setup(asd_ha);
 607         if (err)
 608                 goto Err_free;
 609
 610         err = -ENODEV;
 611         if (!pci_set_dma_mask(dev, DMA_64BIT_MASK)
 612             && !pci_set_consistent_dma_mask(dev, DMA_64BIT_MASK))
 613                 ;
 614         else if (!pci_set_dma_mask(dev, DMA_32BIT_MASK)
 615                  && !pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK))
 616                 ;
 617         else {
 618                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
 619                 goto Err_free;
 620         }
 621
 622         pci_set_drvdata(dev, asd_ha);
 623
 624         err = asd_map_ha(asd_ha);
 625         if (err)
 626                 goto Err_free;
 627
 628         err = asd_create_ha_caches(asd_ha);
 629         if (err)
 630                 goto Err_unmap;
 631
 632         err = asd_init_hw(asd_ha);
 633         if (err)
 634                 goto Err_free_cache;
 635
 636         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
 637                    "phys, flash %s, BIOS %s%d\n",
 638                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
 639                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
 640                    asd_ha->hw_prof.num_phys,
 641                    asd_ha->hw_prof.flash.present ? "present" : "not present",
 642                    asd_ha->hw_prof.bios.present ? "build " : "not present",
 643                    asd_ha->hw_prof.bios.bld);
 644
 645         shost->can_queue = asd_ha->seq.can_queue;
 646
 647         if (use_msi)
 648                 pci_enable_msi(asd_ha->pcidev);
 649
 650         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, SA_SHIRQ,
 651                           ASD_DRIVER_NAME, asd_ha);
 652         if (err) {
 653                 asd_printk("couldn't get irq %d for %s\n",
 654                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
 655                 goto Err_irq;
 656         }
 657         asd_enable_ints(asd_ha);
 658
 659         err = asd_init_post_escbs(asd_ha);
 660         if (err) {
 661                 asd_printk("couldn't post escbs for %s\n",
 662                            pci_name(asd_ha->pcidev));
 663                 goto Err_escbs;
 664         }
 665         ASD_DPRINTK("escbs posted\n");
 666
 667         err = asd_create_dev_attrs(asd_ha);
 668         if (err)
 669                 goto Err_dev_attrs;
 670
 671         err = asd_register_sas_ha(asd_ha);
 672         if (err)
 673                 goto Err_reg_sas;
 674
 675         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
 676         if (err) {
 677                 asd_printk("coudln't enable phys, err:%d\n", err);
 678                 goto Err_en_phys;
 679         }
 680         ASD_DPRINTK("enabled phys\n");
 681         /* give the phy enabling interrupt event time to come in (1s
 682          * is empirically about all it takes) */
 683         ssleep(1);
 684         /* Wait for discovery to finish */
 685         scsi_flush_work(asd_ha->sas_ha.core.shost);
 686
 687         return 0;
 688 Err_en_phys:
 689         asd_unregister_sas_ha(asd_ha);
 690 Err_reg_sas:
 691         asd_remove_dev_attrs(asd_ha);
 692 Err_dev_attrs:
 693 Err_escbs:
 694         asd_disable_ints(asd_ha);
 695         free_irq(dev->irq, asd_ha);
 696 Err_irq:
 697         if (use_msi)
 698                 pci_disable_msi(dev);
 699         asd_chip_hardrst(asd_ha);
 700 Err_free_cache:
 701         asd_destroy_ha_caches(asd_ha);
 702 Err_unmap:
 703         asd_unmap_ha(asd_ha);
 704 Err_free:
 705         kfree(asd_ha);
 706         scsi_remove_host(shost);
 707 Err:
 708         pci_disable_device(dev);
 709         return err;
 710 }
 711
 712 static void asd_free_queues(struct asd_ha_struct *asd_ha)
 713 {
 714         unsigned long flags;
 715         LIST_HEAD(pending);
 716         struct list_head *n, *pos;
 717
 718         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
 719         asd_ha->seq.pending = 0;
 720         list_splice_init(&asd_ha->seq.pend_q, &pending);
 721         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
 722
 723         if (!list_empty(&pending))
 724                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
 725
 726         list_for_each_safe(pos, n, &pending) {
 727                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
 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 ssize_t asd_version_show(struct device_driver *driver, char *buf)
 774 {
 775         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
 776 }
 777 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
 778
 779 static int asd_create_driver_attrs(struct device_driver *driver)
 780 {
 781         return driver_create_file(driver, &driver_attr_version);
 782 }
 783
 784 static void asd_remove_driver_attrs(struct device_driver *driver)
 785 {
 786         driver_remove_file(driver, &driver_attr_version);
 787 }
 788
 789 static struct sas_domain_function_template aic94xx_transport_functions = {
 790         .lldd_port_formed       = asd_update_port_links,
 791
 792         .lldd_dev_found         = asd_dev_found,
 793         .lldd_dev_gone          = asd_dev_gone,
 794
 795         .lldd_execute_task      = asd_execute_task,
 796
 797         .lldd_abort_task        = asd_abort_task,
 798         .lldd_abort_task_set    = asd_abort_task_set,
 799         .lldd_clear_aca         = asd_clear_aca,
 800         .lldd_clear_task_set    = asd_clear_task_set,
 801         .lldd_I_T_nexus_reset   = NULL,
 802         .lldd_lu_reset          = asd_lu_reset,
 803         .lldd_query_task        = asd_query_task,
 804
 805         .lldd_clear_nexus_port  = asd_clear_nexus_port,
 806         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
 807
 808         .lldd_control_phy       = asd_control_phy,
 809 };
 810
 811 static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
 812         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR10),
 813          0, 0, 1},
 814         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR12),
 815          0, 0, 1},
 816         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR1E),
 817          0, 0, 1},
 818         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR30),
 819          0, 0, 2},
 820         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR32),
 821          0, 0, 2},
 822         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3E),
 823          0, 0, 2},
 824         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3F),
 825          0, 0, 2},
 826         {}
 827 };
 828
 829 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
 830
 831 static struct pci_driver aic94xx_pci_driver = {
 832         .name           = ASD_DRIVER_NAME,
 833         .id_table       = aic94xx_pci_table,
 834         .probe          = asd_pci_probe,
 835         .remove         = __devexit_p(asd_pci_remove),
 836 };
 837
 838 static int __init aic94xx_init(void)
 839 {
 840         int err;
 841
 842
 843         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
 844                    ASD_DRIVER_VERSION);
 845
 846         err = asd_create_global_caches();
 847         if (err)
 848                 return err;
 849
 850         aic94xx_transport_template =
 851                 sas_domain_attach_transport(&aic94xx_transport_functions);
 852         if (!aic94xx_transport_template)
 853                 goto out_destroy_caches;
 854
 855         err = pci_register_driver(&aic94xx_pci_driver);
 856         if (err)
 857                 goto out_release_transport;
 858
 859         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
 860         if (err)
 861                 goto out_unregister_pcidrv;
 862
 863         return err;
 864
 865  out_unregister_pcidrv:
 866         pci_unregister_driver(&aic94xx_pci_driver);
 867  out_release_transport:
 868         sas_release_transport(aic94xx_transport_template);
 869  out_destroy_caches:
 870         asd_destroy_global_caches();
 871
 872         return err;
 873 }
 874
 875 static void __exit aic94xx_exit(void)
 876 {
 877         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
 878         pci_unregister_driver(&aic94xx_pci_driver);
 879         sas_release_transport(aic94xx_transport_template);
 880         asd_destroy_global_caches();
 881         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
 882                    ASD_DRIVER_VERSION);
 883 }
 884
 885 module_init(aic94xx_init);
 886 module_exit(aic94xx_exit);
 887
 888 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
 889 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
 890 MODULE_LICENSE("GPL v2");
 891 MODULE_VERSION(ASD_DRIVER_VERSION);