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