drivers/scsi/aic94xx/aic94xx_init.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Aic94xx SAS/SATA driver initialization.
   4  *
   5  * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
   6  * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
   7  */
   8
   9 #include <linux/module.h>
  10 #include <linux/init.h>
  11 #include <linux/kernel.h>
  12 #include <linux/pci.h>
  13 #include <linux/delay.h>
  14 #include <linux/firmware.h>
  15 #include <linux/slab.h>
  16
  17 #include <scsi/scsi_host.h>
  18
  19 #include "aic94xx.h"
  20 #include "aic94xx_reg.h"
  21 #include "aic94xx_hwi.h"
  22 #include "aic94xx_seq.h"
  23 #include "aic94xx_sds.h"
  24
  25 /* The format is "version.release.patchlevel" */
  26 #define ASD_DRIVER_VERSION "1.0.3"
  27
  28 static int use_msi = 0;
  29 module_param_named(use_msi, use_msi, int, S_IRUGO);
  30 MODULE_PARM_DESC(use_msi, "\n"
  31         "\tEnable(1) or disable(0) using PCI MSI.\n"
  32         "\tDefault: 0");
  33
  34 static struct scsi_transport_template *aic94xx_transport_template;
  35 static int asd_scan_finished(struct Scsi_Host *, unsigned long);
  36 static void asd_scan_start(struct Scsi_Host *);
  37
  38 static struct scsi_host_template aic94xx_sht = {
  39         .module                 = THIS_MODULE,
  40         /* .name is initialized */
  41         .name                   = "aic94xx",
  42         .queuecommand           = sas_queuecommand,
  43         .target_alloc           = sas_target_alloc,
  44         .slave_configure        = sas_slave_configure,
  45         .scan_finished          = asd_scan_finished,
  46         .scan_start             = asd_scan_start,
  47         .change_queue_depth     = sas_change_queue_depth,
  48         .bios_param             = sas_bios_param,
  49         .can_queue              = 1,
  50         .this_id                = -1,
  51         .sg_tablesize           = SG_ALL,
  52         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
  53         .eh_device_reset_handler        = sas_eh_device_reset_handler,
  54         .eh_target_reset_handler        = sas_eh_target_reset_handler,
  55         .target_destroy         = sas_target_destroy,
  56         .ioctl                  = sas_ioctl,
  57 #ifdef CONFIG_COMPAT
  58         .compat_ioctl           = sas_ioctl,
  59 #endif
  60         .track_queue_depth      = 1,
  61 };
  62
  63 static int asd_map_memio(struct asd_ha_struct *asd_ha)
  64 {
  65         int err, i;
  66         struct asd_ha_addrspace *io_handle;
  67
  68         asd_ha->iospace = 0;
  69         for (i = 0; i < 3; i += 2) {
  70                 io_handle = &asd_ha->io_handle[i==0?0:1];
  71                 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
  72                 io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
  73                 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
  74                 err = -ENODEV;
  75                 if (!io_handle->start || !io_handle->len) {
  76                         asd_printk("MBAR%d start or length for %s is 0.\n",
  77                                    i==0?0:1, pci_name(asd_ha->pcidev));
  78                         goto Err;
  79                 }
  80                 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
  81                 if (err) {
  82                         asd_printk("couldn't reserve memory region for %s\n",
  83                                    pci_name(asd_ha->pcidev));
  84                         goto Err;
  85                 }
  86                 io_handle->addr = ioremap(io_handle->start, io_handle->len);
  87                 if (!io_handle->addr) {
  88                         asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
  89                                    pci_name(asd_ha->pcidev));
  90                         err = -ENOMEM;
  91                         goto Err_unreq;
  92                 }
  93         }
  94
  95         return 0;
  96 Err_unreq:
  97         pci_release_region(asd_ha->pcidev, i);
  98 Err:
  99         if (i > 0) {
 100                 io_handle = &asd_ha->io_handle[0];
 101                 iounmap(io_handle->addr);
 102                 pci_release_region(asd_ha->pcidev, 0);
 103         }
 104         return err;
 105 }
 106
 107 static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
 108 {
 109         struct asd_ha_addrspace *io_handle;
 110
 111         io_handle = &asd_ha->io_handle[1];
 112         iounmap(io_handle->addr);
 113         pci_release_region(asd_ha->pcidev, 2);
 114
 115         io_handle = &asd_ha->io_handle[0];
 116         iounmap(io_handle->addr);
 117         pci_release_region(asd_ha->pcidev, 0);
 118 }
 119
 120 static int asd_map_ioport(struct asd_ha_struct *asd_ha)
 121 {
 122         int i = PCI_IOBAR_OFFSET, err;
 123         struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
 124
 125         asd_ha->iospace = 1;
 126         io_handle->start = pci_resource_start(asd_ha->pcidev, i);
 127         io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 128         io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 129         io_handle->addr  = (void __iomem *) io_handle->start;
 130         if (!io_handle->start || !io_handle->len) {
 131                 asd_printk("couldn't get IO ports for %s\n",
 132                            pci_name(asd_ha->pcidev));
 133                 return -ENODEV;
 134         }
 135         err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 136         if (err) {
 137                 asd_printk("couldn't reserve io space for %s\n",
 138                            pci_name(asd_ha->pcidev));
 139         }
 140
 141         return err;
 142 }
 143
 144 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
 145 {
 146         pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
 147 }
 148
 149 static int asd_map_ha(struct asd_ha_struct *asd_ha)
 150 {
 151         int err;
 152         u16 cmd_reg;
 153
 154         err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
 155         if (err) {
 156                 asd_printk("couldn't read command register of %s\n",
 157                            pci_name(asd_ha->pcidev));
 158                 goto Err;
 159         }
 160
 161         err = -ENODEV;
 162         if (cmd_reg & PCI_COMMAND_MEMORY) {
 163                 if ((err = asd_map_memio(asd_ha)))
 164                         goto Err;
 165         } else if (cmd_reg & PCI_COMMAND_IO) {
 166                 if ((err = asd_map_ioport(asd_ha)))
 167                         goto Err;
 168                 asd_printk("%s ioport mapped -- upgrade your hardware\n",
 169                            pci_name(asd_ha->pcidev));
 170         } else {
 171                 asd_printk("no proper device access to %s\n",
 172                            pci_name(asd_ha->pcidev));
 173                 goto Err;
 174         }
 175
 176         return 0;
 177 Err:
 178         return err;
 179 }
 180
 181 static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
 182 {
 183         if (asd_ha->iospace)
 184                 asd_unmap_ioport(asd_ha);
 185         else
 186                 asd_unmap_memio(asd_ha);
 187 }
 188
 189 static const char *asd_dev_rev[30] = {
 190         [0] = "A0",
 191         [1] = "A1",
 192         [8] = "B0",
 193 };
 194
 195 static int asd_common_setup(struct asd_ha_struct *asd_ha)
 196 {
 197         int err, i;
 198
 199         asd_ha->revision_id = asd_ha->pcidev->revision;
 200
 201         err = -ENODEV;
 202         if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
 203                 asd_printk("%s is revision %s (%X), which is not supported\n",
 204                            pci_name(asd_ha->pcidev),
 205                            asd_dev_rev[asd_ha->revision_id],
 206                            asd_ha->revision_id);
 207                 goto Err;
 208         }
 209         /* Provide some sane default values. */
 210         asd_ha->hw_prof.max_scbs = 512;
 211         asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
 212         asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
 213         /* All phys are enabled, by default. */
 214         asd_ha->hw_prof.enabled_phys = 0xFF;
 215         for (i = 0; i < ASD_MAX_PHYS; i++) {
 216                 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
 217                         SAS_LINK_RATE_3_0_GBPS;
 218                 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
 219                         SAS_LINK_RATE_1_5_GBPS;
 220                 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
 221                         SAS_LINK_RATE_1_5_GBPS;
 222                 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
 223                         SAS_LINK_RATE_1_5_GBPS;
 224         }
 225
 226         return 0;
 227 Err:
 228         return err;
 229 }
 230
 231 static int asd_aic9410_setup(struct asd_ha_struct *asd_ha)
 232 {
 233         int err = asd_common_setup(asd_ha);
 234
 235         if (err)
 236                 return err;
 237
 238         asd_ha->hw_prof.addr_range = 8;
 239         asd_ha->hw_prof.port_name_base = 0;
 240         asd_ha->hw_prof.dev_name_base = 8;
 241         asd_ha->hw_prof.sata_name_base = 16;
 242
 243         return 0;
 244 }
 245
 246 static int asd_aic9405_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 = 4;
 254         asd_ha->hw_prof.port_name_base = 0;
 255         asd_ha->hw_prof.dev_name_base = 4;
 256         asd_ha->hw_prof.sata_name_base = 8;
 257
 258         return 0;
 259 }
 260
 261 static ssize_t asd_show_dev_rev(struct device *dev,
 262                                 struct device_attribute *attr, char *buf)
 263 {
 264         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 265         return snprintf(buf, PAGE_SIZE, "%s\n",
 266                         asd_dev_rev[asd_ha->revision_id]);
 267 }
 268 static DEVICE_ATTR(aic_revision, S_IRUGO, asd_show_dev_rev, NULL);
 269
 270 static ssize_t asd_show_dev_bios_build(struct device *dev,
 271                                        struct device_attribute *attr,char *buf)
 272 {
 273         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 274         return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
 275 }
 276 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
 277
 278 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
 279                                     struct device_attribute *attr, char *buf)
 280 {
 281         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 282         return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
 283 }
 284 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
 285
 286 #define FLASH_CMD_NONE      0x00
 287 #define FLASH_CMD_UPDATE    0x01
 288 #define FLASH_CMD_VERIFY    0x02
 289
 290 struct flash_command {
 291      u8      command[8];
 292      int     code;
 293 };
 294
 295 static struct flash_command flash_command_table[] =
 296 {
 297      {"verify",      FLASH_CMD_VERIFY},
 298      {"update",      FLASH_CMD_UPDATE},
 299      {"",            FLASH_CMD_NONE}      /* Last entry should be NULL. */
 300 };
 301
 302 struct error_bios {
 303      char    *reason;
 304      int     err_code;
 305 };
 306
 307 static struct error_bios flash_error_table[] =
 308 {
 309      {"Failed to open bios image file",      FAIL_OPEN_BIOS_FILE},
 310      {"PCI ID mismatch",                     FAIL_CHECK_PCI_ID},
 311      {"Checksum mismatch",                   FAIL_CHECK_SUM},
 312      {"Unknown Error",                       FAIL_UNKNOWN},
 313      {"Failed to verify.",                   FAIL_VERIFY},
 314      {"Failed to reset flash chip.",         FAIL_RESET_FLASH},
 315      {"Failed to find flash chip type.",     FAIL_FIND_FLASH_ID},
 316      {"Failed to erash flash chip.",         FAIL_ERASE_FLASH},
 317      {"Failed to program flash chip.",       FAIL_WRITE_FLASH},
 318      {"Flash in progress",                   FLASH_IN_PROGRESS},
 319      {"Image file size Error",               FAIL_FILE_SIZE},
 320      {"Input parameter error",               FAIL_PARAMETERS},
 321      {"Out of memory",                       FAIL_OUT_MEMORY},
 322      {"OK", 0}  /* Last entry err_code = 0. */
 323 };
 324
 325 static ssize_t asd_store_update_bios(struct device *dev,
 326         struct device_attribute *attr,
 327         const char *buf, size_t count)
 328 {
 329         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 330         char *cmd_ptr, *filename_ptr;
 331         struct bios_file_header header, *hdr_ptr;
 332         int res, i;
 333         u32 csum = 0;
 334         int flash_command = FLASH_CMD_NONE;
 335         int err = 0;
 336
 337         cmd_ptr = kcalloc(count, 2, GFP_KERNEL);
 338
 339         if (!cmd_ptr) {
 340                 err = FAIL_OUT_MEMORY;
 341                 goto out;
 342         }
 343
 344         filename_ptr = cmd_ptr + count;
 345         res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
 346         if (res != 2) {
 347                 err = FAIL_PARAMETERS;
 348                 goto out1;
 349         }
 350
 351         for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
 352                 if (!memcmp(flash_command_table[i].command,
 353                                  cmd_ptr, strlen(cmd_ptr))) {
 354                         flash_command = flash_command_table[i].code;
 355                         break;
 356                 }
 357         }
 358         if (flash_command == FLASH_CMD_NONE) {
 359                 err = FAIL_PARAMETERS;
 360                 goto out1;
 361         }
 362
 363         if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
 364                 err = FLASH_IN_PROGRESS;
 365                 goto out1;
 366         }
 367         err = request_firmware(&asd_ha->bios_image,
 368                                    filename_ptr,
 369                                    &asd_ha->pcidev->dev);
 370         if (err) {
 371                 asd_printk("Failed to load bios image file %s, error %d\n",
 372                            filename_ptr, err);
 373                 err = FAIL_OPEN_BIOS_FILE;
 374                 goto out1;
 375         }
 376
 377         hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
 378
 379         if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
 380                 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
 381                 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
 382                 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
 383
 384                 ASD_DPRINTK("The PCI vendor or device id does not match\n");
 385                 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
 386                 " pci vendor=%x pci dev=%x\n",
 387                 hdr_ptr->contrl_id.vendor,
 388                 hdr_ptr->contrl_id.device,
 389                 hdr_ptr->contrl_id.sub_vendor,
 390                 hdr_ptr->contrl_id.sub_device,
 391                 asd_ha->pcidev->vendor,
 392                 asd_ha->pcidev->device);
 393                 err = FAIL_CHECK_PCI_ID;
 394                 goto out2;
 395         }
 396
 397         if (hdr_ptr->filelen != asd_ha->bios_image->size) {
 398                 err = FAIL_FILE_SIZE;
 399                 goto out2;
 400         }
 401
 402         /* calculate checksum */
 403         for (i = 0; i < hdr_ptr->filelen; i++)
 404                 csum += asd_ha->bios_image->data[i];
 405
 406         if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
 407                 ASD_DPRINTK("BIOS file checksum mismatch\n");
 408                 err = FAIL_CHECK_SUM;
 409                 goto out2;
 410         }
 411         if (flash_command == FLASH_CMD_UPDATE) {
 412                 asd_ha->bios_status = FLASH_IN_PROGRESS;
 413                 err = asd_write_flash_seg(asd_ha,
 414                         &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
 415                         0, hdr_ptr->filelen-sizeof(*hdr_ptr));
 416                 if (!err)
 417                         err = asd_verify_flash_seg(asd_ha,
 418                                 &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
 419                                 0, hdr_ptr->filelen-sizeof(*hdr_ptr));
 420         } else {
 421                 asd_ha->bios_status = FLASH_IN_PROGRESS;
 422                 err = asd_verify_flash_seg(asd_ha,
 423                         &asd_ha->bios_image->data[sizeof(header)],
 424                         0, hdr_ptr->filelen-sizeof(header));
 425         }
 426
 427 out2:
 428         release_firmware(asd_ha->bios_image);
 429 out1:
 430         kfree(cmd_ptr);
 431 out:
 432         asd_ha->bios_status = err;
 433
 434         if (!err)
 435                 return count;
 436         else
 437                 return -err;
 438 }
 439
 440 static ssize_t asd_show_update_bios(struct device *dev,
 441                                     struct device_attribute *attr, char *buf)
 442 {
 443         int i;
 444         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 445
 446         for (i = 0; flash_error_table[i].err_code != 0; i++) {
 447                 if (flash_error_table[i].err_code == asd_ha->bios_status)
 448                         break;
 449         }
 450         if (asd_ha->bios_status != FLASH_IN_PROGRESS)
 451                 asd_ha->bios_status = FLASH_OK;
 452
 453         return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
 454                         flash_error_table[i].err_code,
 455                         flash_error_table[i].reason);
 456 }
 457
 458 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,
 459         asd_show_update_bios, asd_store_update_bios);
 460
 461 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
 462 {
 463         int err;
 464
 465         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
 466         if (err)
 467                 return err;
 468
 469         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 470         if (err)
 471                 goto err_rev;
 472
 473         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 474         if (err)
 475                 goto err_biosb;
 476         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
 477         if (err)
 478                 goto err_update_bios;
 479
 480         return 0;
 481
 482 err_update_bios:
 483         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 484 err_biosb:
 485         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 486 err_rev:
 487         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
 488         return err;
 489 }
 490
 491 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
 492 {
 493         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
 494         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 495         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 496         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
 497 }
 498
 499 /* The first entry, 0, is used for dynamic ids, the rest for devices
 500  * we know about.
 501  */
 502 static const struct asd_pcidev_struct {
 503         const char * name;
 504         int (*setup)(struct asd_ha_struct *asd_ha);
 505 } asd_pcidev_data[] = {
 506         /* Id 0 is used for dynamic ids. */
 507         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
 508           .setup = asd_aic9410_setup
 509         },
 510         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
 511           .setup = asd_aic9410_setup
 512         },
 513         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
 514           .setup = asd_aic9405_setup
 515         },
 516 };
 517
 518 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
 519 {
 520         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
 521                                            &asd_ha->pcidev->dev,
 522                                            sizeof(struct scb),
 523                                            8, 0);
 524         if (!asd_ha->scb_pool) {
 525                 asd_printk("couldn't create scb pool\n");
 526                 return -ENOMEM;
 527         }
 528
 529         return 0;
 530 }
 531
 532 /**
 533  * asd_free_edbs -- free empty data buffers
 534  * asd_ha: pointer to host adapter structure
 535  */
 536 static void asd_free_edbs(struct asd_ha_struct *asd_ha)
 537 {
 538         struct asd_seq_data *seq = &asd_ha->seq;
 539         int i;
 540
 541         for (i = 0; i < seq->num_edbs; i++)
 542                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
 543         kfree(seq->edb_arr);
 544         seq->edb_arr = NULL;
 545 }
 546
 547 static void asd_free_escbs(struct asd_ha_struct *asd_ha)
 548 {
 549         struct asd_seq_data *seq = &asd_ha->seq;
 550         int i;
 551
 552         for (i = 0; i < seq->num_escbs; i++) {
 553                 if (!list_empty(&seq->escb_arr[i]->list))
 554                         list_del_init(&seq->escb_arr[i]->list);
 555
 556                 asd_ascb_free(seq->escb_arr[i]);
 557         }
 558         kfree(seq->escb_arr);
 559         seq->escb_arr = NULL;
 560 }
 561
 562 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
 563 {
 564         int i;
 565
 566         if (asd_ha->hw_prof.ddb_ext)
 567                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
 568         if (asd_ha->hw_prof.scb_ext)
 569                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
 570
 571         kfree(asd_ha->hw_prof.ddb_bitmap);
 572         asd_ha->hw_prof.ddb_bitmap = NULL;
 573
 574         for (i = 0; i < ASD_MAX_PHYS; i++) {
 575                 struct asd_phy *phy = &asd_ha->phys[i];
 576
 577                 asd_free_coherent(asd_ha, phy->id_frm_tok);
 578         }
 579         if (asd_ha->seq.escb_arr)
 580                 asd_free_escbs(asd_ha);
 581         if (asd_ha->seq.edb_arr)
 582                 asd_free_edbs(asd_ha);
 583         if (asd_ha->hw_prof.ue.area) {
 584                 kfree(asd_ha->hw_prof.ue.area);
 585                 asd_ha->hw_prof.ue.area = NULL;
 586         }
 587         if (asd_ha->seq.tc_index_array) {
 588                 kfree(asd_ha->seq.tc_index_array);
 589                 kfree(asd_ha->seq.tc_index_bitmap);
 590                 asd_ha->seq.tc_index_array = NULL;
 591                 asd_ha->seq.tc_index_bitmap = NULL;
 592         }
 593         if (asd_ha->seq.actual_dl) {
 594                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
 595                         asd_ha->seq.actual_dl = NULL;
 596                         asd_ha->seq.dl = NULL;
 597         }
 598         if (asd_ha->seq.next_scb.vaddr) {
 599                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
 600                               asd_ha->seq.next_scb.dma_handle);
 601                 asd_ha->seq.next_scb.vaddr = NULL;
 602         }
 603         dma_pool_destroy(asd_ha->scb_pool);
 604         asd_ha->scb_pool = NULL;
 605 }
 606
 607 struct kmem_cache *asd_dma_token_cache;
 608 struct kmem_cache *asd_ascb_cache;
 609
 610 static int asd_create_global_caches(void)
 611 {
 612         if (!asd_dma_token_cache) {
 613                 asd_dma_token_cache
 614                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
 615                                             sizeof(struct asd_dma_tok),
 616                                             0,
 617                                             SLAB_HWCACHE_ALIGN,
 618                                             NULL);
 619                 if (!asd_dma_token_cache) {
 620                         asd_printk("couldn't create dma token cache\n");
 621                         return -ENOMEM;
 622                 }
 623         }
 624
 625         if (!asd_ascb_cache) {
 626                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
 627                                                    sizeof(struct asd_ascb),
 628                                                    0,
 629                                                    SLAB_HWCACHE_ALIGN,
 630                                                    NULL);
 631                 if (!asd_ascb_cache) {
 632                         asd_printk("couldn't create ascb cache\n");
 633                         goto Err;
 634                 }
 635         }
 636
 637         return 0;
 638 Err:
 639         kmem_cache_destroy(asd_dma_token_cache);
 640         asd_dma_token_cache = NULL;
 641         return -ENOMEM;
 642 }
 643
 644 static void asd_destroy_global_caches(void)
 645 {
 646         kmem_cache_destroy(asd_dma_token_cache);
 647         asd_dma_token_cache = NULL;
 648
 649         kmem_cache_destroy(asd_ascb_cache);
 650         asd_ascb_cache = NULL;
 651 }
 652
 653 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
 654 {
 655         int i;
 656         struct asd_sas_phy   **sas_phys =
 657                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL);
 658         struct asd_sas_port  **sas_ports =
 659                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL);
 660
 661         if (!sas_phys || !sas_ports) {
 662                 kfree(sas_phys);
 663                 kfree(sas_ports);
 664                 return -ENOMEM;
 665         }
 666
 667         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
 668         asd_ha->sas_ha.lldd_module = THIS_MODULE;
 669         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
 670
 671         for (i = 0; i < ASD_MAX_PHYS; i++) {
 672                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
 673                 sas_ports[i] = &asd_ha->ports[i];
 674         }
 675
 676         asd_ha->sas_ha.sas_phy = sas_phys;
 677         asd_ha->sas_ha.sas_port= sas_ports;
 678         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
 679
 680         return sas_register_ha(&asd_ha->sas_ha);
 681 }
 682
 683 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
 684 {
 685         int err;
 686
 687         err = sas_unregister_ha(&asd_ha->sas_ha);
 688
 689         sas_remove_host(asd_ha->sas_ha.core.shost);
 690         scsi_host_put(asd_ha->sas_ha.core.shost);
 691
 692         kfree(asd_ha->sas_ha.sas_phy);
 693         kfree(asd_ha->sas_ha.sas_port);
 694
 695         return err;
 696 }
 697
 698 static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 699 {
 700         const struct asd_pcidev_struct *asd_dev;
 701         unsigned asd_id = (unsigned) id->driver_data;
 702         struct asd_ha_struct *asd_ha;
 703         struct Scsi_Host *shost;
 704         int err;
 705
 706         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
 707                 asd_printk("wrong driver_data in PCI table\n");
 708                 return -ENODEV;
 709         }
 710
 711         if ((err = pci_enable_device(dev))) {
 712                 asd_printk("couldn't enable device %s\n", pci_name(dev));
 713                 return err;
 714         }
 715
 716         pci_set_master(dev);
 717
 718         err = -ENOMEM;
 719
 720         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
 721         if (!shost)
 722                 goto Err;
 723
 724         asd_dev = &asd_pcidev_data[asd_id];
 725
 726         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
 727         if (!asd_ha) {
 728                 asd_printk("out of memory\n");
 729                 goto Err_put;
 730         }
 731         asd_ha->pcidev = dev;
 732         asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
 733         asd_ha->sas_ha.lldd_ha = asd_ha;
 734
 735         asd_ha->bios_status = FLASH_OK;
 736         asd_ha->name = asd_dev->name;
 737         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
 738
 739         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
 740         asd_ha->sas_ha.core.shost = shost;
 741         shost->transportt = aic94xx_transport_template;
 742         shost->max_id = ~0;
 743         shost->max_lun = ~0;
 744         shost->max_cmd_len = 16;
 745
 746         err = scsi_add_host(shost, &dev->dev);
 747         if (err)
 748                 goto Err_free;
 749
 750         err = asd_dev->setup(asd_ha);
 751         if (err)
 752                 goto Err_remove;
 753
 754         err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(64));
 755         if (err)
 756                 err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
 757         if (err) {
 758                 err = -ENODEV;
 759                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
 760                 goto Err_remove;
 761         }
 762
 763         pci_set_drvdata(dev, asd_ha);
 764
 765         err = asd_map_ha(asd_ha);
 766         if (err)
 767                 goto Err_remove;
 768
 769         err = asd_create_ha_caches(asd_ha);
 770         if (err)
 771                 goto Err_unmap;
 772
 773         err = asd_init_hw(asd_ha);
 774         if (err)
 775                 goto Err_free_cache;
 776
 777         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
 778                    "phys, flash %s, BIOS %s%d\n",
 779                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
 780                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
 781                    asd_ha->hw_prof.num_phys,
 782                    asd_ha->hw_prof.flash.present ? "present" : "not present",
 783                    asd_ha->hw_prof.bios.present ? "build " : "not present",
 784                    asd_ha->hw_prof.bios.bld);
 785
 786         shost->can_queue = asd_ha->seq.can_queue;
 787
 788         if (use_msi)
 789                 pci_enable_msi(asd_ha->pcidev);
 790
 791         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
 792                           ASD_DRIVER_NAME, asd_ha);
 793         if (err) {
 794                 asd_printk("couldn't get irq %d for %s\n",
 795                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
 796                 goto Err_irq;
 797         }
 798         asd_enable_ints(asd_ha);
 799
 800         err = asd_init_post_escbs(asd_ha);
 801         if (err) {
 802                 asd_printk("couldn't post escbs for %s\n",
 803                            pci_name(asd_ha->pcidev));
 804                 goto Err_escbs;
 805         }
 806         ASD_DPRINTK("escbs posted\n");
 807
 808         err = asd_create_dev_attrs(asd_ha);
 809         if (err)
 810                 goto Err_dev_attrs;
 811
 812         err = asd_register_sas_ha(asd_ha);
 813         if (err)
 814                 goto Err_reg_sas;
 815
 816         scsi_scan_host(shost);
 817
 818         return 0;
 819
 820 Err_reg_sas:
 821         asd_remove_dev_attrs(asd_ha);
 822 Err_dev_attrs:
 823 Err_escbs:
 824         asd_disable_ints(asd_ha);
 825         free_irq(dev->irq, asd_ha);
 826 Err_irq:
 827         if (use_msi)
 828                 pci_disable_msi(dev);
 829         asd_chip_hardrst(asd_ha);
 830 Err_free_cache:
 831         asd_destroy_ha_caches(asd_ha);
 832 Err_unmap:
 833         asd_unmap_ha(asd_ha);
 834 Err_remove:
 835         scsi_remove_host(shost);
 836 Err_free:
 837         kfree(asd_ha);
 838 Err_put:
 839         scsi_host_put(shost);
 840 Err:
 841         pci_disable_device(dev);
 842         return err;
 843 }
 844
 845 static void asd_free_queues(struct asd_ha_struct *asd_ha)
 846 {
 847         unsigned long flags;
 848         LIST_HEAD(pending);
 849         struct list_head *n, *pos;
 850
 851         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
 852         asd_ha->seq.pending = 0;
 853         list_splice_init(&asd_ha->seq.pend_q, &pending);
 854         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
 855
 856         if (!list_empty(&pending))
 857                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
 858
 859         list_for_each_safe(pos, n, &pending) {
 860                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
 861                 /*
 862                  * Delete unexpired ascb timers.  This may happen if we issue
 863                  * a CONTROL PHY scb to an adapter and rmmod before the scb
 864                  * times out.  Apparently we don't wait for the CONTROL PHY
 865                  * to complete, so it doesn't matter if we kill the timer.
 866                  */
 867                 del_timer_sync(&ascb->timer);
 868                 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
 869
 870                 list_del_init(pos);
 871                 ASD_DPRINTK("freeing from pending\n");
 872                 asd_ascb_free(ascb);
 873         }
 874 }
 875
 876 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
 877 {
 878         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
 879         u8 i;
 880
 881         for_each_phy(phy_mask, phy_mask, i) {
 882                 asd_turn_led(asd_ha, i, 0);
 883                 asd_control_led(asd_ha, i, 0);
 884         }
 885 }
 886
 887 static void asd_pci_remove(struct pci_dev *dev)
 888 {
 889         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
 890
 891         if (!asd_ha)
 892                 return;
 893
 894         asd_unregister_sas_ha(asd_ha);
 895
 896         asd_disable_ints(asd_ha);
 897
 898         asd_remove_dev_attrs(asd_ha);
 899
 900         /* XXX more here as needed */
 901
 902         free_irq(dev->irq, asd_ha);
 903         if (use_msi)
 904                 pci_disable_msi(asd_ha->pcidev);
 905         asd_turn_off_leds(asd_ha);
 906         asd_chip_hardrst(asd_ha);
 907         asd_free_queues(asd_ha);
 908         asd_destroy_ha_caches(asd_ha);
 909         asd_unmap_ha(asd_ha);
 910         kfree(asd_ha);
 911         pci_disable_device(dev);
 912         return;
 913 }
 914
 915 static void asd_scan_start(struct Scsi_Host *shost)
 916 {
 917         struct asd_ha_struct *asd_ha;
 918         int err;
 919
 920         asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
 921         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
 922         if (err)
 923                 asd_printk("Couldn't enable phys, err:%d\n", err);
 924 }
 925
 926 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
 927 {
 928         /* give the phy enabling interrupt event time to come in (1s
 929          * is empirically about all it takes) */
 930         if (time < HZ)
 931                 return 0;
 932         /* Wait for discovery to finish */
 933         sas_drain_work(SHOST_TO_SAS_HA(shost));
 934         return 1;
 935 }
 936
 937 static ssize_t version_show(struct device_driver *driver, char *buf)
 938 {
 939         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
 940 }
 941 static DRIVER_ATTR_RO(version);
 942
 943 static int asd_create_driver_attrs(struct device_driver *driver)
 944 {
 945         return driver_create_file(driver, &driver_attr_version);
 946 }
 947
 948 static void asd_remove_driver_attrs(struct device_driver *driver)
 949 {
 950         driver_remove_file(driver, &driver_attr_version);
 951 }
 952
 953 static struct sas_domain_function_template aic94xx_transport_functions = {
 954         .lldd_dev_found         = asd_dev_found,
 955         .lldd_dev_gone          = asd_dev_gone,
 956
 957         .lldd_execute_task      = asd_execute_task,
 958
 959         .lldd_abort_task        = asd_abort_task,
 960         .lldd_abort_task_set    = asd_abort_task_set,
 961         .lldd_clear_aca         = asd_clear_aca,
 962         .lldd_clear_task_set    = asd_clear_task_set,
 963         .lldd_I_T_nexus_reset   = asd_I_T_nexus_reset,
 964         .lldd_lu_reset          = asd_lu_reset,
 965         .lldd_query_task        = asd_query_task,
 966
 967         .lldd_clear_nexus_port  = asd_clear_nexus_port,
 968         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
 969
 970         .lldd_control_phy       = asd_control_phy,
 971
 972         .lldd_ata_set_dmamode   = asd_set_dmamode,
 973 };
 974
 975 static const struct pci_device_id aic94xx_pci_table[] = {
 976         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
 977         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
 978         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
 979         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
 980         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
 981         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
 982         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
 983         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
 984         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
 985         {}
 986 };
 987
 988 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
 989
 990 static struct pci_driver aic94xx_pci_driver = {
 991         .name           = ASD_DRIVER_NAME,
 992         .id_table       = aic94xx_pci_table,
 993         .probe          = asd_pci_probe,
 994         .remove         = asd_pci_remove,
 995 };
 996
 997 static int __init aic94xx_init(void)
 998 {
 999         int err;
1000
1001
1002         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
1003                    ASD_DRIVER_VERSION);
1004
1005         err = asd_create_global_caches();
1006         if (err)
1007                 return err;
1008
1009         aic94xx_transport_template =
1010                 sas_domain_attach_transport(&aic94xx_transport_functions);
1011         if (!aic94xx_transport_template) {
1012                 err = -ENOMEM;
1013                 goto out_destroy_caches;
1014         }
1015
1016         err = pci_register_driver(&aic94xx_pci_driver);
1017         if (err)
1018                 goto out_release_transport;
1019
1020         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
1021         if (err)
1022                 goto out_unregister_pcidrv;
1023
1024         return err;
1025
1026  out_unregister_pcidrv:
1027         pci_unregister_driver(&aic94xx_pci_driver);
1028  out_release_transport:
1029         sas_release_transport(aic94xx_transport_template);
1030  out_destroy_caches:
1031         asd_destroy_global_caches();
1032
1033         return err;
1034 }
1035
1036 static void __exit aic94xx_exit(void)
1037 {
1038         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
1039         pci_unregister_driver(&aic94xx_pci_driver);
1040         sas_release_transport(aic94xx_transport_template);
1041         asd_release_firmware();
1042         asd_destroy_global_caches();
1043         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
1044                    ASD_DRIVER_VERSION);
1045 }
1046
1047 module_init(aic94xx_init);
1048 module_exit(aic94xx_exit);
1049
1050 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
1051 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
1052 MODULE_LICENSE("GPL v2");
1053 MODULE_VERSION(ASD_DRIVER_VERSION);