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