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 #include <linux/firmware.h>
  33 #include <linux/slab.h>
  34
  35 #include <scsi/scsi_host.h>
  36
  37 #include "aic94xx.h"
  38 #include "aic94xx_reg.h"
  39 #include "aic94xx_hwi.h"
  40 #include "aic94xx_seq.h"
  41 #include "aic94xx_sds.h"
  42
  43 /* The format is "version.release.patchlevel" */
  44 #define ASD_DRIVER_VERSION "1.0.3"
  45
  46 static int use_msi = 0;
  47 module_param_named(use_msi, use_msi, int, S_IRUGO);
  48 MODULE_PARM_DESC(use_msi, "\n"
  49         "\tEnable(1) or disable(0) using PCI MSI.\n"
  50         "\tDefault: 0");
  51
  52 static int lldd_max_execute_num = 0;
  53 module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
  54 MODULE_PARM_DESC(collector, "\n"
  55         "\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
  56         "\tMode.  If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
  57         "\tThe aic94xx SAS LLDD supports both modes.\n"
  58         "\tDefault: 0 (Direct Mode).\n");
  59
  60 static struct scsi_transport_template *aic94xx_transport_template;
  61 static int asd_scan_finished(struct Scsi_Host *, unsigned long);
  62 static void asd_scan_start(struct Scsi_Host *);
  63
  64 static struct scsi_host_template aic94xx_sht = {
  65         .module                 = THIS_MODULE,
  66         /* .name is initialized */
  67         .name                   = "aic94xx",
  68         .queuecommand           = sas_queuecommand,
  69         .target_alloc           = sas_target_alloc,
  70         .slave_configure        = sas_slave_configure,
  71         .slave_destroy          = sas_slave_destroy,
  72         .scan_finished          = asd_scan_finished,
  73         .scan_start             = asd_scan_start,
  74         .change_queue_depth     = sas_change_queue_depth,
  75         .change_queue_type      = sas_change_queue_type,
  76         .bios_param             = sas_bios_param,
  77         .can_queue              = 1,
  78         .cmd_per_lun            = 1,
  79         .this_id                = -1,
  80         .sg_tablesize           = SG_ALL,
  81         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
  82         .use_clustering         = ENABLE_CLUSTERING,
  83         .eh_device_reset_handler        = sas_eh_device_reset_handler,
  84         .eh_bus_reset_handler   = sas_eh_bus_reset_handler,
  85         .slave_alloc            = sas_slave_alloc,
  86         .target_destroy         = sas_target_destroy,
  87         .ioctl                  = sas_ioctl,
  88 };
  89
  90 static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
  91 {
  92         int err, i;
  93         struct asd_ha_addrspace *io_handle;
  94
  95         asd_ha->iospace = 0;
  96         for (i = 0; i < 3; i += 2) {
  97                 io_handle = &asd_ha->io_handle[i==0?0:1];
  98                 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
  99                 io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 100                 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 101                 err = -ENODEV;
 102                 if (!io_handle->start || !io_handle->len) {
 103                         asd_printk("MBAR%d start or length for %s is 0.\n",
 104                                    i==0?0:1, pci_name(asd_ha->pcidev));
 105                         goto Err;
 106                 }
 107                 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 108                 if (err) {
 109                         asd_printk("couldn't reserve memory region for %s\n",
 110                                    pci_name(asd_ha->pcidev));
 111                         goto Err;
 112                 }
 113                 if (io_handle->flags & IORESOURCE_CACHEABLE)
 114                         io_handle->addr = ioremap(io_handle->start,
 115                                                   io_handle->len);
 116                 else
 117                         io_handle->addr = ioremap_nocache(io_handle->start,
 118                                                           io_handle->len);
 119                 if (!io_handle->addr) {
 120                         asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
 121                                    pci_name(asd_ha->pcidev));
 122                         goto Err_unreq;
 123                 }
 124         }
 125
 126         return 0;
 127 Err_unreq:
 128         pci_release_region(asd_ha->pcidev, i);
 129 Err:
 130         if (i > 0) {
 131                 io_handle = &asd_ha->io_handle[0];
 132                 iounmap(io_handle->addr);
 133                 pci_release_region(asd_ha->pcidev, 0);
 134         }
 135         return err;
 136 }
 137
 138 static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
 139 {
 140         struct asd_ha_addrspace *io_handle;
 141
 142         io_handle = &asd_ha->io_handle[1];
 143         iounmap(io_handle->addr);
 144         pci_release_region(asd_ha->pcidev, 2);
 145
 146         io_handle = &asd_ha->io_handle[0];
 147         iounmap(io_handle->addr);
 148         pci_release_region(asd_ha->pcidev, 0);
 149 }
 150
 151 static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
 152 {
 153         int i = PCI_IOBAR_OFFSET, err;
 154         struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
 155
 156         asd_ha->iospace = 1;
 157         io_handle->start = pci_resource_start(asd_ha->pcidev, i);
 158         io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 159         io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 160         io_handle->addr  = (void __iomem *) io_handle->start;
 161         if (!io_handle->start || !io_handle->len) {
 162                 asd_printk("couldn't get IO ports for %s\n",
 163                            pci_name(asd_ha->pcidev));
 164                 return -ENODEV;
 165         }
 166         err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 167         if (err) {
 168                 asd_printk("couldn't reserve io space for %s\n",
 169                            pci_name(asd_ha->pcidev));
 170         }
 171
 172         return err;
 173 }
 174
 175 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
 176 {
 177         pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
 178 }
 179
 180 static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
 181 {
 182         int err;
 183         u16 cmd_reg;
 184
 185         err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
 186         if (err) {
 187                 asd_printk("couldn't read command register of %s\n",
 188                            pci_name(asd_ha->pcidev));
 189                 goto Err;
 190         }
 191
 192         err = -ENODEV;
 193         if (cmd_reg & PCI_COMMAND_MEMORY) {
 194                 if ((err = asd_map_memio(asd_ha)))
 195                         goto Err;
 196         } else if (cmd_reg & PCI_COMMAND_IO) {
 197                 if ((err = asd_map_ioport(asd_ha)))
 198                         goto Err;
 199                 asd_printk("%s ioport mapped -- upgrade your hardware\n",
 200                            pci_name(asd_ha->pcidev));
 201         } else {
 202                 asd_printk("no proper device access to %s\n",
 203                            pci_name(asd_ha->pcidev));
 204                 goto Err;
 205         }
 206
 207         return 0;
 208 Err:
 209         return err;
 210 }
 211
 212 static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
 213 {
 214         if (asd_ha->iospace)
 215                 asd_unmap_ioport(asd_ha);
 216         else
 217                 asd_unmap_memio(asd_ha);
 218 }
 219
 220 static const char *asd_dev_rev[30] = {
 221         [0] = "A0",
 222         [1] = "A1",
 223         [8] = "B0",
 224 };
 225
 226 static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
 227 {
 228         int err, i;
 229
 230         asd_ha->revision_id = asd_ha->pcidev->revision;
 231
 232         err = -ENODEV;
 233         if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
 234                 asd_printk("%s is revision %s (%X), which is not supported\n",
 235                            pci_name(asd_ha->pcidev),
 236                            asd_dev_rev[asd_ha->revision_id],
 237                            asd_ha->revision_id);
 238                 goto Err;
 239         }
 240         /* Provide some sane default values. */
 241         asd_ha->hw_prof.max_scbs = 512;
 242         asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
 243         asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
 244         /* All phys are enabled, by default. */
 245         asd_ha->hw_prof.enabled_phys = 0xFF;
 246         for (i = 0; i < ASD_MAX_PHYS; i++) {
 247                 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
 248                         SAS_LINK_RATE_3_0_GBPS;
 249                 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
 250                         SAS_LINK_RATE_1_5_GBPS;
 251                 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
 252                         SAS_LINK_RATE_1_5_GBPS;
 253                 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
 254                         SAS_LINK_RATE_1_5_GBPS;
 255         }
 256
 257         return 0;
 258 Err:
 259         return err;
 260 }
 261
 262 static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
 263 {
 264         int err = asd_common_setup(asd_ha);
 265
 266         if (err)
 267                 return err;
 268
 269         asd_ha->hw_prof.addr_range = 8;
 270         asd_ha->hw_prof.port_name_base = 0;
 271         asd_ha->hw_prof.dev_name_base = 8;
 272         asd_ha->hw_prof.sata_name_base = 16;
 273
 274         return 0;
 275 }
 276
 277 static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
 278 {
 279         int err = asd_common_setup(asd_ha);
 280
 281         if (err)
 282                 return err;
 283
 284         asd_ha->hw_prof.addr_range = 4;
 285         asd_ha->hw_prof.port_name_base = 0;
 286         asd_ha->hw_prof.dev_name_base = 4;
 287         asd_ha->hw_prof.sata_name_base = 8;
 288
 289         return 0;
 290 }
 291
 292 static ssize_t asd_show_dev_rev(struct device *dev,
 293                                 struct device_attribute *attr, char *buf)
 294 {
 295         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 296         return snprintf(buf, PAGE_SIZE, "%s\n",
 297                         asd_dev_rev[asd_ha->revision_id]);
 298 }
 299 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
 300
 301 static ssize_t asd_show_dev_bios_build(struct device *dev,
 302                                        struct device_attribute *attr,char *buf)
 303 {
 304         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 305         return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
 306 }
 307 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
 308
 309 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
 310                                     struct device_attribute *attr, char *buf)
 311 {
 312         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 313         return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
 314 }
 315 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
 316
 317 #define FLASH_CMD_NONE      0x00
 318 #define FLASH_CMD_UPDATE    0x01
 319 #define FLASH_CMD_VERIFY    0x02
 320
 321 struct flash_command {
 322      u8      command[8];
 323      int     code;
 324 };
 325
 326 static struct flash_command flash_command_table[] =
 327 {
 328      {"verify",      FLASH_CMD_VERIFY},
 329      {"update",      FLASH_CMD_UPDATE},
 330      {"",            FLASH_CMD_NONE}      /* Last entry should be NULL. */
 331 };
 332
 333 struct error_bios {
 334      char    *reason;
 335      int     err_code;
 336 };
 337
 338 static struct error_bios flash_error_table[] =
 339 {
 340      {"Failed to open bios image file",      FAIL_OPEN_BIOS_FILE},
 341      {"PCI ID mismatch",                     FAIL_CHECK_PCI_ID},
 342      {"Checksum mismatch",                   FAIL_CHECK_SUM},
 343      {"Unknown Error",                       FAIL_UNKNOWN},
 344      {"Failed to verify.",                   FAIL_VERIFY},
 345      {"Failed to reset flash chip.",         FAIL_RESET_FLASH},
 346      {"Failed to find flash chip type.",     FAIL_FIND_FLASH_ID},
 347      {"Failed to erash flash chip.",         FAIL_ERASE_FLASH},
 348      {"Failed to program flash chip.",       FAIL_WRITE_FLASH},
 349      {"Flash in progress",                   FLASH_IN_PROGRESS},
 350      {"Image file size Error",               FAIL_FILE_SIZE},
 351      {"Input parameter error",               FAIL_PARAMETERS},
 352      {"Out of memory",                       FAIL_OUT_MEMORY},
 353      {"OK", 0}  /* Last entry err_code = 0. */
 354 };
 355
 356 static ssize_t asd_store_update_bios(struct device *dev,
 357         struct device_attribute *attr,
 358         const char *buf, size_t count)
 359 {
 360         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 361         char *cmd_ptr, *filename_ptr;
 362         struct bios_file_header header, *hdr_ptr;
 363         int res, i;
 364         u32 csum = 0;
 365         int flash_command = FLASH_CMD_NONE;
 366         int err = 0;
 367
 368         cmd_ptr = kzalloc(count*2, GFP_KERNEL);
 369
 370         if (!cmd_ptr) {
 371                 err = FAIL_OUT_MEMORY;
 372                 goto out;
 373         }
 374
 375         filename_ptr = cmd_ptr + count;
 376         res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
 377         if (res != 2) {
 378                 err = FAIL_PARAMETERS;
 379                 goto out1;
 380         }
 381
 382         for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
 383                 if (!memcmp(flash_command_table[i].command,
 384                                  cmd_ptr, strlen(cmd_ptr))) {
 385                         flash_command = flash_command_table[i].code;
 386                         break;
 387                 }
 388         }
 389         if (flash_command == FLASH_CMD_NONE) {
 390                 err = FAIL_PARAMETERS;
 391                 goto out1;
 392         }
 393
 394         if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
 395                 err = FLASH_IN_PROGRESS;
 396                 goto out1;
 397         }
 398         err = request_firmware(&asd_ha->bios_image,
 399                                    filename_ptr,
 400                                    &asd_ha->pcidev->dev);
 401         if (err) {
 402                 asd_printk("Failed to load bios image file %s, error %d\n",
 403                            filename_ptr, err);
 404                 err = FAIL_OPEN_BIOS_FILE;
 405                 goto out1;
 406         }
 407
 408         hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
 409
 410         if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
 411                 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
 412                 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
 413                 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
 414
 415                 ASD_DPRINTK("The PCI vendor or device id does not match\n");
 416                 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
 417                 " pci vendor=%x pci dev=%x\n",
 418                 hdr_ptr->contrl_id.vendor,
 419                 hdr_ptr->contrl_id.device,
 420                 hdr_ptr->contrl_id.sub_vendor,
 421                 hdr_ptr->contrl_id.sub_device,
 422                 asd_ha->pcidev->vendor,
 423                 asd_ha->pcidev->device);
 424                 err = FAIL_CHECK_PCI_ID;
 425                 goto out2;
 426         }
 427
 428         if (hdr_ptr->filelen != asd_ha->bios_image->size) {
 429                 err = FAIL_FILE_SIZE;
 430                 goto out2;
 431         }
 432
 433         /* calculate checksum */
 434         for (i = 0; i < hdr_ptr->filelen; i++)
 435                 csum += asd_ha->bios_image->data[i];
 436
 437         if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
 438                 ASD_DPRINTK("BIOS file checksum mismatch\n");
 439                 err = FAIL_CHECK_SUM;
 440                 goto out2;
 441         }
 442         if (flash_command == FLASH_CMD_UPDATE) {
 443                 asd_ha->bios_status = FLASH_IN_PROGRESS;
 444                 err = asd_write_flash_seg(asd_ha,
 445                         &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
 446                         0, hdr_ptr->filelen-sizeof(*hdr_ptr));
 447                 if (!err)
 448                         err = asd_verify_flash_seg(asd_ha,
 449                                 &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
 450                                 0, hdr_ptr->filelen-sizeof(*hdr_ptr));
 451         } else {
 452                 asd_ha->bios_status = FLASH_IN_PROGRESS;
 453                 err = asd_verify_flash_seg(asd_ha,
 454                         &asd_ha->bios_image->data[sizeof(header)],
 455                         0, hdr_ptr->filelen-sizeof(header));
 456         }
 457
 458 out2:
 459         release_firmware(asd_ha->bios_image);
 460 out1:
 461         kfree(cmd_ptr);
 462 out:
 463         asd_ha->bios_status = err;
 464
 465         if (!err)
 466                 return count;
 467         else
 468                 return -err;
 469 }
 470
 471 static ssize_t asd_show_update_bios(struct device *dev,
 472                                     struct device_attribute *attr, char *buf)
 473 {
 474         int i;
 475         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 476
 477         for (i = 0; flash_error_table[i].err_code != 0; i++) {
 478                 if (flash_error_table[i].err_code == asd_ha->bios_status)
 479                         break;
 480         }
 481         if (asd_ha->bios_status != FLASH_IN_PROGRESS)
 482                 asd_ha->bios_status = FLASH_OK;
 483
 484         return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
 485                         flash_error_table[i].err_code,
 486                         flash_error_table[i].reason);
 487 }
 488
 489 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUGO,
 490         asd_show_update_bios, asd_store_update_bios);
 491
 492 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
 493 {
 494         int err;
 495
 496         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 497         if (err)
 498                 return err;
 499
 500         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 501         if (err)
 502                 goto err_rev;
 503
 504         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 505         if (err)
 506                 goto err_biosb;
 507         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
 508         if (err)
 509                 goto err_update_bios;
 510
 511         return 0;
 512
 513 err_update_bios:
 514         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 515 err_biosb:
 516         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 517 err_rev:
 518         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 519         return err;
 520 }
 521
 522 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
 523 {
 524         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 525         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 526         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 527         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
 528 }
 529
 530 /* The first entry, 0, is used for dynamic ids, the rest for devices
 531  * we know about.
 532  */
 533 static const struct asd_pcidev_struct {
 534         const char * name;
 535         int (*setup)(struct asd_ha_struct *asd_ha);
 536 } asd_pcidev_data[] __devinitconst = {
 537         /* Id 0 is used for dynamic ids. */
 538         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
 539           .setup = asd_aic9410_setup
 540         },
 541         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
 542           .setup = asd_aic9410_setup
 543         },
 544         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
 545           .setup = asd_aic9405_setup
 546         },
 547 };
 548
 549 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
 550 {
 551         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
 552                                            &asd_ha->pcidev->dev,
 553                                            sizeof(struct scb),
 554                                            8, 0);
 555         if (!asd_ha->scb_pool) {
 556                 asd_printk("couldn't create scb pool\n");
 557                 return -ENOMEM;
 558         }
 559
 560         return 0;
 561 }
 562
 563 /**
 564  * asd_free_edbs -- free empty data buffers
 565  * asd_ha: pointer to host adapter structure
 566  */
 567 static void asd_free_edbs(struct asd_ha_struct *asd_ha)
 568 {
 569         struct asd_seq_data *seq = &asd_ha->seq;
 570         int i;
 571
 572         for (i = 0; i < seq->num_edbs; i++)
 573                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
 574         kfree(seq->edb_arr);
 575         seq->edb_arr = NULL;
 576 }
 577
 578 static void asd_free_escbs(struct asd_ha_struct *asd_ha)
 579 {
 580         struct asd_seq_data *seq = &asd_ha->seq;
 581         int i;
 582
 583         for (i = 0; i < seq->num_escbs; i++) {
 584                 if (!list_empty(&seq->escb_arr[i]->list))
 585                         list_del_init(&seq->escb_arr[i]->list);
 586
 587                 asd_ascb_free(seq->escb_arr[i]);
 588         }
 589         kfree(seq->escb_arr);
 590         seq->escb_arr = NULL;
 591 }
 592
 593 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
 594 {
 595         int i;
 596
 597         if (asd_ha->hw_prof.ddb_ext)
 598                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
 599         if (asd_ha->hw_prof.scb_ext)
 600                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
 601
 602         if (asd_ha->hw_prof.ddb_bitmap)
 603                 kfree(asd_ha->hw_prof.ddb_bitmap);
 604         asd_ha->hw_prof.ddb_bitmap = NULL;
 605
 606         for (i = 0; i < ASD_MAX_PHYS; i++) {
 607                 struct asd_phy *phy = &asd_ha->phys[i];
 608
 609                 asd_free_coherent(asd_ha, phy->id_frm_tok);
 610         }
 611         if (asd_ha->seq.escb_arr)
 612                 asd_free_escbs(asd_ha);
 613         if (asd_ha->seq.edb_arr)
 614                 asd_free_edbs(asd_ha);
 615         if (asd_ha->hw_prof.ue.area) {
 616                 kfree(asd_ha->hw_prof.ue.area);
 617                 asd_ha->hw_prof.ue.area = NULL;
 618         }
 619         if (asd_ha->seq.tc_index_array) {
 620                 kfree(asd_ha->seq.tc_index_array);
 621                 kfree(asd_ha->seq.tc_index_bitmap);
 622                 asd_ha->seq.tc_index_array = NULL;
 623                 asd_ha->seq.tc_index_bitmap = NULL;
 624         }
 625         if (asd_ha->seq.actual_dl) {
 626                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
 627                         asd_ha->seq.actual_dl = NULL;
 628                         asd_ha->seq.dl = NULL;
 629         }
 630         if (asd_ha->seq.next_scb.vaddr) {
 631                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
 632                               asd_ha->seq.next_scb.dma_handle);
 633                 asd_ha->seq.next_scb.vaddr = NULL;
 634         }
 635         dma_pool_destroy(asd_ha->scb_pool);
 636         asd_ha->scb_pool = NULL;
 637 }
 638
 639 struct kmem_cache *asd_dma_token_cache;
 640 struct kmem_cache *asd_ascb_cache;
 641
 642 static int asd_create_global_caches(void)
 643 {
 644         if (!asd_dma_token_cache) {
 645                 asd_dma_token_cache
 646                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
 647                                             sizeof(struct asd_dma_tok),
 648                                             0,
 649                                             SLAB_HWCACHE_ALIGN,
 650                                             NULL);
 651                 if (!asd_dma_token_cache) {
 652                         asd_printk("couldn't create dma token cache\n");
 653                         return -ENOMEM;
 654                 }
 655         }
 656
 657         if (!asd_ascb_cache) {
 658                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
 659                                                    sizeof(struct asd_ascb),
 660                                                    0,
 661                                                    SLAB_HWCACHE_ALIGN,
 662                                                    NULL);
 663                 if (!asd_ascb_cache) {
 664                         asd_printk("couldn't create ascb cache\n");
 665                         goto Err;
 666                 }
 667         }
 668
 669         return 0;
 670 Err:
 671         kmem_cache_destroy(asd_dma_token_cache);
 672         asd_dma_token_cache = NULL;
 673         return -ENOMEM;
 674 }
 675
 676 static void asd_destroy_global_caches(void)
 677 {
 678         if (asd_dma_token_cache)
 679                 kmem_cache_destroy(asd_dma_token_cache);
 680         asd_dma_token_cache = NULL;
 681
 682         if (asd_ascb_cache)
 683                 kmem_cache_destroy(asd_ascb_cache);
 684         asd_ascb_cache = NULL;
 685 }
 686
 687 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
 688 {
 689         int i;
 690         struct asd_sas_phy   **sas_phys =
 691                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL);
 692         struct asd_sas_port  **sas_ports =
 693                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL);
 694
 695         if (!sas_phys || !sas_ports) {
 696                 kfree(sas_phys);
 697                 kfree(sas_ports);
 698                 return -ENOMEM;
 699         }
 700
 701         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
 702         asd_ha->sas_ha.lldd_module = THIS_MODULE;
 703         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
 704
 705         for (i = 0; i < ASD_MAX_PHYS; i++) {
 706                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
 707                 sas_ports[i] = &asd_ha->ports[i];
 708         }
 709
 710         asd_ha->sas_ha.sas_phy = sas_phys;
 711         asd_ha->sas_ha.sas_port= sas_ports;
 712         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
 713
 714         asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
 715         asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num;
 716
 717         return sas_register_ha(&asd_ha->sas_ha);
 718 }
 719
 720 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
 721 {
 722         int err;
 723
 724         err = sas_unregister_ha(&asd_ha->sas_ha);
 725
 726         sas_remove_host(asd_ha->sas_ha.core.shost);
 727         scsi_remove_host(asd_ha->sas_ha.core.shost);
 728         scsi_host_put(asd_ha->sas_ha.core.shost);
 729
 730         kfree(asd_ha->sas_ha.sas_phy);
 731         kfree(asd_ha->sas_ha.sas_port);
 732
 733         return err;
 734 }
 735
 736 static int __devinit asd_pci_probe(struct pci_dev *dev,
 737                                    const struct pci_device_id *id)
 738 {
 739         const struct asd_pcidev_struct *asd_dev;
 740         unsigned asd_id = (unsigned) id->driver_data;
 741         struct asd_ha_struct *asd_ha;
 742         struct Scsi_Host *shost;
 743         int err;
 744
 745         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
 746                 asd_printk("wrong driver_data in PCI table\n");
 747                 return -ENODEV;
 748         }
 749
 750         if ((err = pci_enable_device(dev))) {
 751                 asd_printk("couldn't enable device %s\n", pci_name(dev));
 752                 return err;
 753         }
 754
 755         pci_set_master(dev);
 756
 757         err = -ENOMEM;
 758
 759         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
 760         if (!shost)
 761                 goto Err;
 762
 763         asd_dev = &asd_pcidev_data[asd_id];
 764
 765         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
 766         if (!asd_ha) {
 767                 asd_printk("out of memory\n");
 768                 goto Err_put;
 769         }
 770         asd_ha->pcidev = dev;
 771         asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
 772         asd_ha->sas_ha.lldd_ha = asd_ha;
 773
 774         asd_ha->bios_status = FLASH_OK;
 775         asd_ha->name = asd_dev->name;
 776         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
 777
 778         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
 779         asd_ha->sas_ha.core.shost = shost;
 780         shost->transportt = aic94xx_transport_template;
 781         shost->max_id = ~0;
 782         shost->max_lun = ~0;
 783         shost->max_cmd_len = 16;
 784
 785         err = scsi_add_host(shost, &dev->dev);
 786         if (err)
 787                 goto Err_free;
 788
 789         err = asd_dev->setup(asd_ha);
 790         if (err)
 791                 goto Err_remove;
 792
 793         err = -ENODEV;
 794         if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64))
 795             && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64)))
 796                 ;
 797         else if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32))
 798                  && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32)))
 799                 ;
 800         else {
 801                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
 802                 goto Err_remove;
 803         }
 804
 805         pci_set_drvdata(dev, asd_ha);
 806
 807         err = asd_map_ha(asd_ha);
 808         if (err)
 809                 goto Err_remove;
 810
 811         err = asd_create_ha_caches(asd_ha);
 812         if (err)
 813                 goto Err_unmap;
 814
 815         err = asd_init_hw(asd_ha);
 816         if (err)
 817                 goto Err_free_cache;
 818
 819         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
 820                    "phys, flash %s, BIOS %s%d\n",
 821                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
 822                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
 823                    asd_ha->hw_prof.num_phys,
 824                    asd_ha->hw_prof.flash.present ? "present" : "not present",
 825                    asd_ha->hw_prof.bios.present ? "build " : "not present",
 826                    asd_ha->hw_prof.bios.bld);
 827
 828         shost->can_queue = asd_ha->seq.can_queue;
 829
 830         if (use_msi)
 831                 pci_enable_msi(asd_ha->pcidev);
 832
 833         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
 834                           ASD_DRIVER_NAME, asd_ha);
 835         if (err) {
 836                 asd_printk("couldn't get irq %d for %s\n",
 837                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
 838                 goto Err_irq;
 839         }
 840         asd_enable_ints(asd_ha);
 841
 842         err = asd_init_post_escbs(asd_ha);
 843         if (err) {
 844                 asd_printk("couldn't post escbs for %s\n",
 845                            pci_name(asd_ha->pcidev));
 846                 goto Err_escbs;
 847         }
 848         ASD_DPRINTK("escbs posted\n");
 849
 850         err = asd_create_dev_attrs(asd_ha);
 851         if (err)
 852                 goto Err_dev_attrs;
 853
 854         err = asd_register_sas_ha(asd_ha);
 855         if (err)
 856                 goto Err_reg_sas;
 857
 858         scsi_scan_host(shost);
 859
 860         return 0;
 861
 862 Err_reg_sas:
 863         asd_remove_dev_attrs(asd_ha);
 864 Err_dev_attrs:
 865 Err_escbs:
 866         asd_disable_ints(asd_ha);
 867         free_irq(dev->irq, asd_ha);
 868 Err_irq:
 869         if (use_msi)
 870                 pci_disable_msi(dev);
 871         asd_chip_hardrst(asd_ha);
 872 Err_free_cache:
 873         asd_destroy_ha_caches(asd_ha);
 874 Err_unmap:
 875         asd_unmap_ha(asd_ha);
 876 Err_remove:
 877         scsi_remove_host(shost);
 878 Err_free:
 879         kfree(asd_ha);
 880 Err_put:
 881         scsi_host_put(shost);
 882 Err:
 883         pci_disable_device(dev);
 884         return err;
 885 }
 886
 887 static void asd_free_queues(struct asd_ha_struct *asd_ha)
 888 {
 889         unsigned long flags;
 890         LIST_HEAD(pending);
 891         struct list_head *n, *pos;
 892
 893         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
 894         asd_ha->seq.pending = 0;
 895         list_splice_init(&asd_ha->seq.pend_q, &pending);
 896         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
 897
 898         if (!list_empty(&pending))
 899                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
 900
 901         list_for_each_safe(pos, n, &pending) {
 902                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
 903                 /*
 904                  * Delete unexpired ascb timers.  This may happen if we issue
 905                  * a CONTROL PHY scb to an adapter and rmmod before the scb
 906                  * times out.  Apparently we don't wait for the CONTROL PHY
 907                  * to complete, so it doesn't matter if we kill the timer.
 908                  */
 909                 del_timer_sync(&ascb->timer);
 910                 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
 911
 912                 list_del_init(pos);
 913                 ASD_DPRINTK("freeing from pending\n");
 914                 asd_ascb_free(ascb);
 915         }
 916 }
 917
 918 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
 919 {
 920         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
 921         u8 i;
 922
 923         for_each_phy(phy_mask, phy_mask, i) {
 924                 asd_turn_led(asd_ha, i, 0);
 925                 asd_control_led(asd_ha, i, 0);
 926         }
 927 }
 928
 929 static void __devexit asd_pci_remove(struct pci_dev *dev)
 930 {
 931         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
 932
 933         if (!asd_ha)
 934                 return;
 935
 936         asd_unregister_sas_ha(asd_ha);
 937
 938         asd_disable_ints(asd_ha);
 939
 940         asd_remove_dev_attrs(asd_ha);
 941
 942         /* XXX more here as needed */
 943
 944         free_irq(dev->irq, asd_ha);
 945         if (use_msi)
 946                 pci_disable_msi(asd_ha->pcidev);
 947         asd_turn_off_leds(asd_ha);
 948         asd_chip_hardrst(asd_ha);
 949         asd_free_queues(asd_ha);
 950         asd_destroy_ha_caches(asd_ha);
 951         asd_unmap_ha(asd_ha);
 952         kfree(asd_ha);
 953         pci_disable_device(dev);
 954         return;
 955 }
 956
 957 static void asd_scan_start(struct Scsi_Host *shost)
 958 {
 959         struct asd_ha_struct *asd_ha;
 960         int err;
 961
 962         asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
 963         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
 964         if (err)
 965                 asd_printk("Couldn't enable phys, err:%d\n", err);
 966 }
 967
 968 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
 969 {
 970         /* give the phy enabling interrupt event time to come in (1s
 971          * is empirically about all it takes) */
 972         if (time < HZ)
 973                 return 0;
 974         /* Wait for discovery to finish */
 975         scsi_flush_work(shost);
 976         return 1;
 977 }
 978
 979 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
 980 {
 981         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
 982 }
 983 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
 984
 985 static int asd_create_driver_attrs(struct device_driver *driver)
 986 {
 987         return driver_create_file(driver, &driver_attr_version);
 988 }
 989
 990 static void asd_remove_driver_attrs(struct device_driver *driver)
 991 {
 992         driver_remove_file(driver, &driver_attr_version);
 993 }
 994
 995 static struct sas_domain_function_template aic94xx_transport_functions = {
 996         .lldd_dev_found         = asd_dev_found,
 997         .lldd_dev_gone          = asd_dev_gone,
 998
 999         .lldd_execute_task      = asd_execute_task,
1000
1001         .lldd_abort_task        = asd_abort_task,
1002         .lldd_abort_task_set    = asd_abort_task_set,
1003         .lldd_clear_aca         = asd_clear_aca,
1004         .lldd_clear_task_set    = asd_clear_task_set,
1005         .lldd_I_T_nexus_reset   = asd_I_T_nexus_reset,
1006         .lldd_lu_reset          = asd_lu_reset,
1007         .lldd_query_task        = asd_query_task,
1008
1009         .lldd_clear_nexus_port  = asd_clear_nexus_port,
1010         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
1011
1012         .lldd_control_phy       = asd_control_phy,
1013 };
1014
1015 static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
1016         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
1017         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
1018         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
1019         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
1020         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
1021         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
1022         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
1023         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
1024         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
1025         {}
1026 };
1027
1028 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
1029
1030 static struct pci_driver aic94xx_pci_driver = {
1031         .name           = ASD_DRIVER_NAME,
1032         .id_table       = aic94xx_pci_table,
1033         .probe          = asd_pci_probe,
1034         .remove         = __devexit_p(asd_pci_remove),
1035 };
1036
1037 static int __init aic94xx_init(void)
1038 {
1039         int err;
1040
1041
1042         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
1043                    ASD_DRIVER_VERSION);
1044
1045         err = asd_create_global_caches();
1046         if (err)
1047                 return err;
1048
1049         aic94xx_transport_template =
1050                 sas_domain_attach_transport(&aic94xx_transport_functions);
1051         if (!aic94xx_transport_template)
1052                 goto out_destroy_caches;
1053
1054         err = pci_register_driver(&aic94xx_pci_driver);
1055         if (err)
1056                 goto out_release_transport;
1057
1058         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
1059         if (err)
1060                 goto out_unregister_pcidrv;
1061
1062         return err;
1063
1064  out_unregister_pcidrv:
1065         pci_unregister_driver(&aic94xx_pci_driver);
1066  out_release_transport:
1067         sas_release_transport(aic94xx_transport_template);
1068  out_destroy_caches:
1069         asd_destroy_global_caches();
1070
1071         return err;
1072 }
1073
1074 static void __exit aic94xx_exit(void)
1075 {
1076         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
1077         pci_unregister_driver(&aic94xx_pci_driver);
1078         sas_release_transport(aic94xx_transport_template);
1079         asd_release_firmware();
1080         asd_destroy_global_caches();
1081         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
1082                    ASD_DRIVER_VERSION);
1083 }
1084
1085 module_init(aic94xx_init);
1086 module_exit(aic94xx_exit);
1087
1088 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
1089 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
1090 MODULE_LICENSE("GPL v2");
1091 MODULE_VERSION(ASD_DRIVER_VERSION);