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