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