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