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   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
  34 #include <scsi/scsi_host.h>
  35
  36 #include "aic94xx.h"
  37 #include "aic94xx_reg.h"
  38 #include "aic94xx_hwi.h"
  39 #include "aic94xx_seq.h"
  40 #include "aic94xx_sds.h"
  41
  42 /* The format is "version.release.patchlevel" */
  43 #define ASD_DRIVER_VERSION "1.0.3"
  44
  45 static int use_msi = 0;
  46 module_param_named(use_msi, use_msi, int, S_IRUGO);
  47 MODULE_PARM_DESC(use_msi, "\n"
  48         "\tEnable(1) or disable(0) using PCI MSI.\n"
  49         "\tDefault: 0");
  50
  51 static int lldd_max_execute_num = 0;
  52 module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
  53 MODULE_PARM_DESC(collector, "\n"
  54         "\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
  55         "\tMode.  If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
  56         "\tThe aic94xx SAS LLDD supports both modes.\n"
  57         "\tDefault: 0 (Direct Mode).\n");
  58
  59 char sas_addr_str[2*SAS_ADDR_SIZE + 1] = "";
  60
  61 static struct scsi_transport_template *aic94xx_transport_template;
  62 static int asd_scan_finished(struct Scsi_Host *, unsigned long);
  63 static void asd_scan_start(struct Scsi_Host *);
  64
  65 static struct scsi_host_template aic94xx_sht = {
  66         .module                 = THIS_MODULE,
  67         /* .name is initialized */
  68         .name                   = "aic94xx",
  69         .queuecommand           = sas_queuecommand,
  70         .target_alloc           = sas_target_alloc,
  71         .slave_configure        = sas_slave_configure,
  72         .slave_destroy          = sas_slave_destroy,
  73         .scan_finished          = asd_scan_finished,
  74         .scan_start             = asd_scan_start,
  75         .change_queue_depth     = sas_change_queue_depth,
  76         .change_queue_type      = sas_change_queue_type,
  77         .bios_param             = sas_bios_param,
  78         .can_queue              = 1,
  79         .cmd_per_lun            = 1,
  80         .this_id                = -1,
  81         .sg_tablesize           = SG_ALL,
  82         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
  83         .use_clustering         = ENABLE_CLUSTERING,
  84         .eh_device_reset_handler        = sas_eh_device_reset_handler,
  85         .eh_bus_reset_handler   = sas_eh_bus_reset_handler,
  86         .slave_alloc            = sas_slave_alloc,
  87         .target_destroy         = sas_target_destroy,
  88         .ioctl                  = sas_ioctl,
  89 };
  90
  91 static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
  92 {
  93         int err, i;
  94         struct asd_ha_addrspace *io_handle;
  95
  96         asd_ha->iospace = 0;
  97         for (i = 0; i < 3; i += 2) {
  98                 io_handle = &asd_ha->io_handle[i==0?0:1];
  99                 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
 100                 io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 101                 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 102                 err = -ENODEV;
 103                 if (!io_handle->start || !io_handle->len) {
 104                         asd_printk("MBAR%d start or length for %s is 0.\n",
 105                                    i==0?0:1, pci_name(asd_ha->pcidev));
 106                         goto Err;
 107                 }
 108                 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 109                 if (err) {
 110                         asd_printk("couldn't reserve memory region for %s\n",
 111                                    pci_name(asd_ha->pcidev));
 112                         goto Err;
 113                 }
 114                 if (io_handle->flags & IORESOURCE_CACHEABLE)
 115                         io_handle->addr = ioremap(io_handle->start,
 116                                                   io_handle->len);
 117                 else
 118                         io_handle->addr = ioremap_nocache(io_handle->start,
 119                                                           io_handle->len);
 120                 if (!io_handle->addr) {
 121                         asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
 122                                    pci_name(asd_ha->pcidev));
 123                         goto Err_unreq;
 124                 }
 125         }
 126
 127         return 0;
 128 Err_unreq:
 129         pci_release_region(asd_ha->pcidev, i);
 130 Err:
 131         if (i > 0) {
 132                 io_handle = &asd_ha->io_handle[0];
 133                 iounmap(io_handle->addr);
 134                 pci_release_region(asd_ha->pcidev, 0);
 135         }
 136         return err;
 137 }
 138
 139 static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
 140 {
 141         struct asd_ha_addrspace *io_handle;
 142
 143         io_handle = &asd_ha->io_handle[1];
 144         iounmap(io_handle->addr);
 145         pci_release_region(asd_ha->pcidev, 2);
 146
 147         io_handle = &asd_ha->io_handle[0];
 148         iounmap(io_handle->addr);
 149         pci_release_region(asd_ha->pcidev, 0);
 150 }
 151
 152 static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
 153 {
 154         int i = PCI_IOBAR_OFFSET, err;
 155         struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
 156
 157         asd_ha->iospace = 1;
 158         io_handle->start = pci_resource_start(asd_ha->pcidev, i);
 159         io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 160         io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 161         io_handle->addr  = (void __iomem *) io_handle->start;
 162         if (!io_handle->start || !io_handle->len) {
 163                 asd_printk("couldn't get IO ports for %s\n",
 164                            pci_name(asd_ha->pcidev));
 165                 return -ENODEV;
 166         }
 167         err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 168         if (err) {
 169                 asd_printk("couldn't reserve io space for %s\n",
 170                            pci_name(asd_ha->pcidev));
 171         }
 172
 173         return err;
 174 }
 175
 176 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
 177 {
 178         pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
 179 }
 180
 181 static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
 182 {
 183         int err;
 184         u16 cmd_reg;
 185
 186         err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
 187         if (err) {
 188                 asd_printk("couldn't read command register of %s\n",
 189                            pci_name(asd_ha->pcidev));
 190                 goto Err;
 191         }
 192
 193         err = -ENODEV;
 194         if (cmd_reg & PCI_COMMAND_MEMORY) {
 195                 if ((err = asd_map_memio(asd_ha)))
 196                         goto Err;
 197         } else if (cmd_reg & PCI_COMMAND_IO) {
 198                 if ((err = asd_map_ioport(asd_ha)))
 199                         goto Err;
 200                 asd_printk("%s ioport mapped -- upgrade your hardware\n",
 201                            pci_name(asd_ha->pcidev));
 202         } else {
 203                 asd_printk("no proper device access to %s\n",
 204                            pci_name(asd_ha->pcidev));
 205                 goto Err;
 206         }
 207
 208         return 0;
 209 Err:
 210         return err;
 211 }
 212
 213 static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
 214 {
 215         if (asd_ha->iospace)
 216                 asd_unmap_ioport(asd_ha);
 217         else
 218                 asd_unmap_memio(asd_ha);
 219 }
 220
 221 static const char *asd_dev_rev[30] = {
 222         [0] = "A0",
 223         [1] = "A1",
 224         [8] = "B0",
 225 };
 226
 227 static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
 228 {
 229         int err, i;
 230
 231         asd_ha->revision_id = asd_ha->pcidev->revision;
 232
 233         err = -ENODEV;
 234         if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
 235                 asd_printk("%s is revision %s (%X), which is not supported\n",
 236                            pci_name(asd_ha->pcidev),
 237                            asd_dev_rev[asd_ha->revision_id],
 238                            asd_ha->revision_id);
 239                 goto Err;
 240         }
 241         /* Provide some sane default values. */
 242         asd_ha->hw_prof.max_scbs = 512;
 243         asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
 244         asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
 245         /* All phys are enabled, by default. */
 246         asd_ha->hw_prof.enabled_phys = 0xFF;
 247         for (i = 0; i < ASD_MAX_PHYS; i++) {
 248                 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
 249                         SAS_LINK_RATE_3_0_GBPS;
 250                 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
 251                         SAS_LINK_RATE_1_5_GBPS;
 252                 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
 253                         SAS_LINK_RATE_1_5_GBPS;
 254                 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
 255                         SAS_LINK_RATE_1_5_GBPS;
 256         }
 257
 258         return 0;
 259 Err:
 260         return err;
 261 }
 262
 263 static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
 264 {
 265         int err = asd_common_setup(asd_ha);
 266
 267         if (err)
 268                 return err;
 269
 270         asd_ha->hw_prof.addr_range = 8;
 271         asd_ha->hw_prof.port_name_base = 0;
 272         asd_ha->hw_prof.dev_name_base = 8;
 273         asd_ha->hw_prof.sata_name_base = 16;
 274
 275         return 0;
 276 }
 277
 278 static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
 279 {
 280         int err = asd_common_setup(asd_ha);
 281
 282         if (err)
 283                 return err;
 284
 285         asd_ha->hw_prof.addr_range = 4;
 286         asd_ha->hw_prof.port_name_base = 0;
 287         asd_ha->hw_prof.dev_name_base = 4;
 288         asd_ha->hw_prof.sata_name_base = 8;
 289
 290         return 0;
 291 }
 292
 293 static ssize_t asd_show_dev_rev(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",
 298                         asd_dev_rev[asd_ha->revision_id]);
 299 }
 300 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
 301
 302 static ssize_t asd_show_dev_bios_build(struct device *dev,
 303                                        struct device_attribute *attr,char *buf)
 304 {
 305         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 306         return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
 307 }
 308 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
 309
 310 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
 311                                     struct device_attribute *attr, char *buf)
 312 {
 313         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 314         return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
 315 }
 316 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
 317
 318 #define FLASH_CMD_NONE      0x00
 319 #define FLASH_CMD_UPDATE    0x01
 320 #define FLASH_CMD_VERIFY    0x02
 321
 322 struct flash_command {
 323      u8      command[8];
 324      int     code;
 325 };
 326
 327 static struct flash_command flash_command_table[] =
 328 {
 329      {"verify",      FLASH_CMD_VERIFY},
 330      {"update",      FLASH_CMD_UPDATE},
 331      {"",            FLASH_CMD_NONE}      /* Last entry should be NULL. */
 332 };
 333
 334 struct error_bios {
 335      char    *reason;
 336      int     err_code;
 337 };
 338
 339 static struct error_bios flash_error_table[] =
 340 {
 341      {"Failed to open bios image file",      FAIL_OPEN_BIOS_FILE},
 342      {"PCI ID mismatch",                     FAIL_CHECK_PCI_ID},
 343      {"Checksum mismatch",                   FAIL_CHECK_SUM},
 344      {"Unknown Error",                       FAIL_UNKNOWN},
 345      {"Failed to verify.",                   FAIL_VERIFY},
 346      {"Failed to reset flash chip.",         FAIL_RESET_FLASH},
 347      {"Failed to find flash chip type.",     FAIL_FIND_FLASH_ID},
 348      {"Failed to erash flash chip.",         FAIL_ERASE_FLASH},
 349      {"Failed to program flash chip.",       FAIL_WRITE_FLASH},
 350      {"Flash in progress",                   FLASH_IN_PROGRESS},
 351      {"Image file size Error",               FAIL_FILE_SIZE},
 352      {"Input parameter error",               FAIL_PARAMETERS},
 353      {"Out of memory",                       FAIL_OUT_MEMORY},
 354      {"OK", 0}  /* Last entry err_code = 0. */
 355 };
 356
 357 static ssize_t asd_store_update_bios(struct device *dev,
 358         struct device_attribute *attr,
 359         const char *buf, size_t count)
 360 {
 361         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 362         char *cmd_ptr, *filename_ptr;
 363         struct bios_file_header header, *hdr_ptr;
 364         int res, i;
 365         u32 csum = 0;
 366         int flash_command = FLASH_CMD_NONE;
 367         int err = 0;
 368
 369         cmd_ptr = kzalloc(count*2, GFP_KERNEL);
 370
 371         if (!cmd_ptr) {
 372                 err = FAIL_OUT_MEMORY;
 373                 goto out;
 374         }
 375
 376         filename_ptr = cmd_ptr + count;
 377         res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
 378         if (res != 2) {
 379                 err = FAIL_PARAMETERS;
 380                 goto out1;
 381         }
 382
 383         for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
 384                 if (!memcmp(flash_command_table[i].command,
 385                                  cmd_ptr, strlen(cmd_ptr))) {
 386                         flash_command = flash_command_table[i].code;
 387                         break;
 388                 }
 389         }
 390         if (flash_command == FLASH_CMD_NONE) {
 391                 err = FAIL_PARAMETERS;
 392                 goto out1;
 393         }
 394
 395         if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
 396                 err = FLASH_IN_PROGRESS;
 397                 goto out1;
 398         }
 399         err = request_firmware(&asd_ha->bios_image,
 400                                    filename_ptr,
 401                                    &asd_ha->pcidev->dev);
 402         if (err) {
 403                 asd_printk("Failed to load bios image file %s, error %d\n",
 404                            filename_ptr, err);
 405                 err = FAIL_OPEN_BIOS_FILE;
 406                 goto out1;
 407         }
 408
 409         hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
 410
 411         if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
 412                 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
 413                 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
 414                 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
 415
 416                 ASD_DPRINTK("The PCI vendor or device id does not match\n");
 417                 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
 418                 " pci vendor=%x pci dev=%x\n",
 419                 hdr_ptr->contrl_id.vendor,
 420                 hdr_ptr->contrl_id.device,
 421                 hdr_ptr->contrl_id.sub_vendor,
 422                 hdr_ptr->contrl_id.sub_device,
 423                 asd_ha->pcidev->vendor,
 424                 asd_ha->pcidev->device);
 425                 err = FAIL_CHECK_PCI_ID;
 426                 goto out2;
 427         }
 428
 429         if (hdr_ptr->filelen != asd_ha->bios_image->size) {
 430                 err = FAIL_FILE_SIZE;
 431                 goto out2;
 432         }
 433
 434         /* calculate checksum */
 435         for (i = 0; i < hdr_ptr->filelen; i++)
 436                 csum += asd_ha->bios_image->data[i];
 437
 438         if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
 439                 ASD_DPRINTK("BIOS file checksum mismatch\n");
 440                 err = FAIL_CHECK_SUM;
 441                 goto out2;
 442         }
 443         if (flash_command == FLASH_CMD_UPDATE) {
 444                 asd_ha->bios_status = FLASH_IN_PROGRESS;
 445                 err = asd_write_flash_seg(asd_ha,
 446                         &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
 447                         0, hdr_ptr->filelen-sizeof(*hdr_ptr));
 448                 if (!err)
 449                         err = asd_verify_flash_seg(asd_ha,
 450                                 &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
 451                                 0, hdr_ptr->filelen-sizeof(*hdr_ptr));
 452         } else {
 453                 asd_ha->bios_status = FLASH_IN_PROGRESS;
 454                 err = asd_verify_flash_seg(asd_ha,
 455                         &asd_ha->bios_image->data[sizeof(header)],
 456                         0, hdr_ptr->filelen-sizeof(header));
 457         }
 458
 459 out2:
 460         release_firmware(asd_ha->bios_image);
 461 out1:
 462         kfree(cmd_ptr);
 463 out:
 464         asd_ha->bios_status = err;
 465
 466         if (!err)
 467                 return count;
 468         else
 469                 return -err;
 470 }
 471
 472 static ssize_t asd_show_update_bios(struct device *dev,
 473                                     struct device_attribute *attr, char *buf)
 474 {
 475         int i;
 476         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 477
 478         for (i = 0; flash_error_table[i].err_code != 0; i++) {
 479                 if (flash_error_table[i].err_code == asd_ha->bios_status)
 480                         break;
 481         }
 482         if (asd_ha->bios_status != FLASH_IN_PROGRESS)
 483                 asd_ha->bios_status = FLASH_OK;
 484
 485         return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
 486                         flash_error_table[i].err_code,
 487                         flash_error_table[i].reason);
 488 }
 489
 490 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUGO,
 491         asd_show_update_bios, asd_store_update_bios);
 492
 493 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
 494 {
 495         int err;
 496
 497         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 498         if (err)
 499                 return err;
 500
 501         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 502         if (err)
 503                 goto err_rev;
 504
 505         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 506         if (err)
 507                 goto err_biosb;
 508         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
 509         if (err)
 510                 goto err_update_bios;
 511
 512         return 0;
 513
 514 err_update_bios:
 515         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 516 err_biosb:
 517         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 518 err_rev:
 519         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 520         return err;
 521 }
 522
 523 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
 524 {
 525         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 526         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 527         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 528         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
 529 }
 530
 531 /* The first entry, 0, is used for dynamic ids, the rest for devices
 532  * we know about.
 533  */
 534 static struct asd_pcidev_struct {
 535         const char * name;
 536         int (*setup)(struct asd_ha_struct *asd_ha);
 537 } asd_pcidev_data[] = {
 538         /* Id 0 is used for dynamic ids. */
 539         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
 540           .setup = asd_aic9410_setup
 541         },
 542         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
 543           .setup = asd_aic9410_setup
 544         },
 545         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
 546           .setup = asd_aic9405_setup
 547         },
 548 };
 549
 550 static inline int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
 551 {
 552         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
 553                                            &asd_ha->pcidev->dev,
 554                                            sizeof(struct scb),
 555                                            8, 0);
 556         if (!asd_ha->scb_pool) {
 557                 asd_printk("couldn't create scb pool\n");
 558                 return -ENOMEM;
 559         }
 560
 561         return 0;
 562 }
 563
 564 /**
 565  * asd_free_edbs -- free empty data buffers
 566  * asd_ha: pointer to host adapter structure
 567  */
 568 static inline void asd_free_edbs(struct asd_ha_struct *asd_ha)
 569 {
 570         struct asd_seq_data *seq = &asd_ha->seq;
 571         int i;
 572
 573         for (i = 0; i < seq->num_edbs; i++)
 574                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
 575         kfree(seq->edb_arr);
 576         seq->edb_arr = NULL;
 577 }
 578
 579 static inline void asd_free_escbs(struct asd_ha_struct *asd_ha)
 580 {
 581         struct asd_seq_data *seq = &asd_ha->seq;
 582         int i;
 583
 584         for (i = 0; i < seq->num_escbs; i++) {
 585                 if (!list_empty(&seq->escb_arr[i]->list))
 586                         list_del_init(&seq->escb_arr[i]->list);
 587
 588                 asd_ascb_free(seq->escb_arr[i]);
 589         }
 590         kfree(seq->escb_arr);
 591         seq->escb_arr = NULL;
 592 }
 593
 594 static inline void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
 595 {
 596         int i;
 597
 598         if (asd_ha->hw_prof.ddb_ext)
 599                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
 600         if (asd_ha->hw_prof.scb_ext)
 601                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
 602
 603         if (asd_ha->hw_prof.ddb_bitmap)
 604                 kfree(asd_ha->hw_prof.ddb_bitmap);
 605         asd_ha->hw_prof.ddb_bitmap = NULL;
 606
 607         for (i = 0; i < ASD_MAX_PHYS; i++) {
 608                 struct asd_phy *phy = &asd_ha->phys[i];
 609
 610                 asd_free_coherent(asd_ha, phy->id_frm_tok);
 611         }
 612         if (asd_ha->seq.escb_arr)
 613                 asd_free_escbs(asd_ha);
 614         if (asd_ha->seq.edb_arr)
 615                 asd_free_edbs(asd_ha);
 616         if (asd_ha->hw_prof.ue.area) {
 617                 kfree(asd_ha->hw_prof.ue.area);
 618                 asd_ha->hw_prof.ue.area = NULL;
 619         }
 620         if (asd_ha->seq.tc_index_array) {
 621                 kfree(asd_ha->seq.tc_index_array);
 622                 kfree(asd_ha->seq.tc_index_bitmap);
 623                 asd_ha->seq.tc_index_array = NULL;
 624                 asd_ha->seq.tc_index_bitmap = NULL;
 625         }
 626         if (asd_ha->seq.actual_dl) {
 627                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
 628                         asd_ha->seq.actual_dl = NULL;
 629                         asd_ha->seq.dl = NULL;
 630         }
 631         if (asd_ha->seq.next_scb.vaddr) {
 632                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
 633                               asd_ha->seq.next_scb.dma_handle);
 634                 asd_ha->seq.next_scb.vaddr = NULL;
 635         }
 636         dma_pool_destroy(asd_ha->scb_pool);
 637         asd_ha->scb_pool = NULL;
 638 }
 639
 640 struct kmem_cache *asd_dma_token_cache;
 641 struct kmem_cache *asd_ascb_cache;
 642
 643 static int asd_create_global_caches(void)
 644 {
 645         if (!asd_dma_token_cache) {
 646                 asd_dma_token_cache
 647                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
 648                                             sizeof(struct asd_dma_tok),
 649                                             0,
 650                                             SLAB_HWCACHE_ALIGN,
 651                                             NULL);
 652                 if (!asd_dma_token_cache) {
 653                         asd_printk("couldn't create dma token cache\n");
 654                         return -ENOMEM;
 655                 }
 656         }
 657
 658         if (!asd_ascb_cache) {
 659                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
 660                                                    sizeof(struct asd_ascb),
 661                                                    0,
 662                                                    SLAB_HWCACHE_ALIGN,
 663                                                    NULL);
 664                 if (!asd_ascb_cache) {
 665                         asd_printk("couldn't create ascb cache\n");
 666                         goto Err;
 667                 }
 668         }
 669
 670         return 0;
 671 Err:
 672         kmem_cache_destroy(asd_dma_token_cache);
 673         asd_dma_token_cache = NULL;
 674         return -ENOMEM;
 675 }
 676
 677 static void asd_destroy_global_caches(void)
 678 {
 679         if (asd_dma_token_cache)
 680                 kmem_cache_destroy(asd_dma_token_cache);
 681         asd_dma_token_cache = NULL;
 682
 683         if (asd_ascb_cache)
 684                 kmem_cache_destroy(asd_ascb_cache);
 685         asd_ascb_cache = NULL;
 686 }
 687
 688 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
 689 {
 690         int i;
 691         struct asd_sas_phy   **sas_phys =
 692                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL);
 693         struct asd_sas_port  **sas_ports =
 694                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL);
 695
 696         if (!sas_phys || !sas_ports) {
 697                 kfree(sas_phys);
 698                 kfree(sas_ports);
 699                 return -ENOMEM;
 700         }
 701
 702         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
 703         asd_ha->sas_ha.lldd_module = THIS_MODULE;
 704         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
 705
 706         for (i = 0; i < ASD_MAX_PHYS; i++) {
 707                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
 708                 sas_ports[i] = &asd_ha->ports[i];
 709         }
 710
 711         asd_ha->sas_ha.sas_phy = sas_phys;
 712         asd_ha->sas_ha.sas_port= sas_ports;
 713         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
 714
 715         asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
 716         asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num;
 717
 718         return sas_register_ha(&asd_ha->sas_ha);
 719 }
 720
 721 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
 722 {
 723         int err;
 724
 725         err = sas_unregister_ha(&asd_ha->sas_ha);
 726
 727         sas_remove_host(asd_ha->sas_ha.core.shost);
 728         scsi_remove_host(asd_ha->sas_ha.core.shost);
 729         scsi_host_put(asd_ha->sas_ha.core.shost);
 730
 731         kfree(asd_ha->sas_ha.sas_phy);
 732         kfree(asd_ha->sas_ha.sas_port);
 733
 734         return err;
 735 }
 736
 737 static int __devinit asd_pci_probe(struct pci_dev *dev,
 738                                    const struct pci_device_id *id)
 739 {
 740         struct asd_pcidev_struct *asd_dev;
 741         unsigned asd_id = (unsigned) id->driver_data;
 742         struct asd_ha_struct *asd_ha;
 743         struct Scsi_Host *shost;
 744         int err;
 745
 746         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
 747                 asd_printk("wrong driver_data in PCI table\n");
 748                 return -ENODEV;
 749         }
 750
 751         if ((err = pci_enable_device(dev))) {
 752                 asd_printk("couldn't enable device %s\n", pci_name(dev));
 753                 return err;
 754         }
 755
 756         pci_set_master(dev);
 757
 758         err = -ENOMEM;
 759
 760         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
 761         if (!shost)
 762                 goto Err;
 763
 764         asd_dev = &asd_pcidev_data[asd_id];
 765
 766         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
 767         if (!asd_ha) {
 768                 asd_printk("out of memory\n");
 769                 goto Err_put;
 770         }
 771         asd_ha->pcidev = dev;
 772         asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
 773         asd_ha->sas_ha.lldd_ha = asd_ha;
 774
 775         asd_ha->bios_status = FLASH_OK;
 776         asd_ha->name = asd_dev->name;
 777         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
 778
 779         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
 780         asd_ha->sas_ha.core.shost = shost;
 781         shost->transportt = aic94xx_transport_template;
 782         shost->max_id = ~0;
 783         shost->max_lun = ~0;
 784         shost->max_cmd_len = 16;
 785
 786         err = scsi_add_host(shost, &dev->dev);
 787         if (err)
 788                 goto Err_free;
 789
 790         err = asd_dev->setup(asd_ha);
 791         if (err)
 792                 goto Err_remove;
 793
 794         err = -ENODEV;
 795         if (!pci_set_dma_mask(dev, DMA_64BIT_MASK)
 796             && !pci_set_consistent_dma_mask(dev, DMA_64BIT_MASK))
 797                 ;
 798         else if (!pci_set_dma_mask(dev, DMA_32BIT_MASK)
 799                  && !pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK))
 800                 ;
 801         else {
 802                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
 803                 goto Err_remove;
 804         }
 805
 806         pci_set_drvdata(dev, asd_ha);
 807
 808         err = asd_map_ha(asd_ha);
 809         if (err)
 810                 goto Err_remove;
 811
 812         err = asd_create_ha_caches(asd_ha);
 813         if (err)
 814                 goto Err_unmap;
 815
 816         err = asd_init_hw(asd_ha);
 817         if (err)
 818                 goto Err_free_cache;
 819
 820         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
 821                    "phys, flash %s, BIOS %s%d\n",
 822                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
 823                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
 824                    asd_ha->hw_prof.num_phys,
 825                    asd_ha->hw_prof.flash.present ? "present" : "not present",
 826                    asd_ha->hw_prof.bios.present ? "build " : "not present",
 827                    asd_ha->hw_prof.bios.bld);
 828
 829         shost->can_queue = asd_ha->seq.can_queue;
 830
 831         if (use_msi)
 832                 pci_enable_msi(asd_ha->pcidev);
 833
 834         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
 835                           ASD_DRIVER_NAME, asd_ha);
 836         if (err) {
 837                 asd_printk("couldn't get irq %d for %s\n",
 838                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
 839                 goto Err_irq;
 840         }
 841         asd_enable_ints(asd_ha);
 842
 843         err = asd_init_post_escbs(asd_ha);
 844         if (err) {
 845                 asd_printk("couldn't post escbs for %s\n",
 846                            pci_name(asd_ha->pcidev));
 847                 goto Err_escbs;
 848         }
 849         ASD_DPRINTK("escbs posted\n");
 850
 851         err = asd_create_dev_attrs(asd_ha);
 852         if (err)
 853                 goto Err_dev_attrs;
 854
 855         err = asd_register_sas_ha(asd_ha);
 856         if (err)
 857                 goto Err_reg_sas;
 858
 859         scsi_scan_host(shost);
 860
 861         return 0;
 862
 863 Err_reg_sas:
 864         asd_remove_dev_attrs(asd_ha);
 865 Err_dev_attrs:
 866 Err_escbs:
 867         asd_disable_ints(asd_ha);
 868         free_irq(dev->irq, asd_ha);
 869 Err_irq:
 870         if (use_msi)
 871                 pci_disable_msi(dev);
 872         asd_chip_hardrst(asd_ha);
 873 Err_free_cache:
 874         asd_destroy_ha_caches(asd_ha);
 875 Err_unmap:
 876         asd_unmap_ha(asd_ha);
 877 Err_remove:
 878         scsi_remove_host(shost);
 879 Err_free:
 880         kfree(asd_ha);
 881 Err_put:
 882         scsi_host_put(shost);
 883 Err:
 884         pci_disable_device(dev);
 885         return err;
 886 }
 887
 888 static void asd_free_queues(struct asd_ha_struct *asd_ha)
 889 {
 890         unsigned long flags;
 891         LIST_HEAD(pending);
 892         struct list_head *n, *pos;
 893
 894         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
 895         asd_ha->seq.pending = 0;
 896         list_splice_init(&asd_ha->seq.pend_q, &pending);
 897         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
 898
 899         if (!list_empty(&pending))
 900                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
 901
 902         list_for_each_safe(pos, n, &pending) {
 903                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
 904                 /*
 905                  * Delete unexpired ascb timers.  This may happen if we issue
 906                  * a CONTROL PHY scb to an adapter and rmmod before the scb
 907                  * times out.  Apparently we don't wait for the CONTROL PHY
 908                  * to complete, so it doesn't matter if we kill the timer.
 909                  */
 910                 del_timer_sync(&ascb->timer);
 911                 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
 912
 913                 list_del_init(pos);
 914                 ASD_DPRINTK("freeing from pending\n");
 915                 asd_ascb_free(ascb);
 916         }
 917 }
 918
 919 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
 920 {
 921         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
 922         u8 i;
 923
 924         for_each_phy(phy_mask, phy_mask, i) {
 925                 asd_turn_led(asd_ha, i, 0);
 926                 asd_control_led(asd_ha, i, 0);
 927         }
 928 }
 929
 930 static void __devexit asd_pci_remove(struct pci_dev *dev)
 931 {
 932         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
 933
 934         if (!asd_ha)
 935                 return;
 936
 937         asd_unregister_sas_ha(asd_ha);
 938
 939         asd_disable_ints(asd_ha);
 940
 941         asd_remove_dev_attrs(asd_ha);
 942
 943         /* XXX more here as needed */
 944
 945         free_irq(dev->irq, asd_ha);
 946         if (use_msi)
 947                 pci_disable_msi(asd_ha->pcidev);
 948         asd_turn_off_leds(asd_ha);
 949         asd_chip_hardrst(asd_ha);
 950         asd_free_queues(asd_ha);
 951         asd_destroy_ha_caches(asd_ha);
 952         asd_unmap_ha(asd_ha);
 953         kfree(asd_ha);
 954         pci_disable_device(dev);
 955         return;
 956 }
 957
 958 static void asd_scan_start(struct Scsi_Host *shost)
 959 {
 960         struct asd_ha_struct *asd_ha;
 961         int err;
 962
 963         asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
 964         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
 965         if (err)
 966                 asd_printk("Couldn't enable phys, err:%d\n", err);
 967 }
 968
 969 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
 970 {
 971         /* give the phy enabling interrupt event time to come in (1s
 972          * is empirically about all it takes) */
 973         if (time < HZ)
 974                 return 0;
 975         /* Wait for discovery to finish */
 976         scsi_flush_work(shost);
 977         return 1;
 978 }
 979
 980 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
 981 {
 982         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
 983 }
 984 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
 985
 986 static int asd_create_driver_attrs(struct device_driver *driver)
 987 {
 988         return driver_create_file(driver, &driver_attr_version);
 989 }
 990
 991 static void asd_remove_driver_attrs(struct device_driver *driver)
 992 {
 993         driver_remove_file(driver, &driver_attr_version);
 994 }
 995
 996 static struct sas_domain_function_template aic94xx_transport_functions = {
 997         .lldd_dev_found         = asd_dev_found,
 998         .lldd_dev_gone          = asd_dev_gone,
 999
1000         .lldd_execute_task      = asd_execute_task,
1001
1002         .lldd_abort_task        = asd_abort_task,
1003         .lldd_abort_task_set    = asd_abort_task_set,
1004         .lldd_clear_aca         = asd_clear_aca,
1005         .lldd_clear_task_set    = asd_clear_task_set,
1006         .lldd_I_T_nexus_reset   = NULL,
1007         .lldd_lu_reset          = asd_lu_reset,
1008         .lldd_query_task        = asd_query_task,
1009
1010         .lldd_clear_nexus_port  = asd_clear_nexus_port,
1011         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
1012
1013         .lldd_control_phy       = asd_control_phy,
1014 };
1015
1016 static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
1017         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
1018         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
1019         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
1020         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
1021         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
1022         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
1023         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
1024         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
1025         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
1026         {}
1027 };
1028
1029 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
1030
1031 static struct pci_driver aic94xx_pci_driver = {
1032         .name           = ASD_DRIVER_NAME,
1033         .id_table       = aic94xx_pci_table,
1034         .probe          = asd_pci_probe,
1035         .remove         = __devexit_p(asd_pci_remove),
1036 };
1037
1038 static int __init aic94xx_init(void)
1039 {
1040         int err;
1041
1042
1043         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
1044                    ASD_DRIVER_VERSION);
1045
1046         err = asd_create_global_caches();
1047         if (err)
1048                 return err;
1049
1050         aic94xx_transport_template =
1051                 sas_domain_attach_transport(&aic94xx_transport_functions);
1052         if (!aic94xx_transport_template)
1053                 goto out_destroy_caches;
1054
1055         err = pci_register_driver(&aic94xx_pci_driver);
1056         if (err)
1057                 goto out_release_transport;
1058
1059         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
1060         if (err)
1061                 goto out_unregister_pcidrv;
1062
1063         return err;
1064
1065  out_unregister_pcidrv:
1066         pci_unregister_driver(&aic94xx_pci_driver);
1067  out_release_transport:
1068         sas_release_transport(aic94xx_transport_template);
1069  out_destroy_caches:
1070         asd_destroy_global_caches();
1071
1072         return err;
1073 }
1074
1075 static void __exit aic94xx_exit(void)
1076 {
1077         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
1078         pci_unregister_driver(&aic94xx_pci_driver);
1079         sas_release_transport(aic94xx_transport_template);
1080         asd_release_firmware();
1081         asd_destroy_global_caches();
1082         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
1083                    ASD_DRIVER_VERSION);
1084 }
1085
1086 module_init(aic94xx_init);
1087 module_exit(aic94xx_exit);
1088
1089 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
1090 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
1091 MODULE_LICENSE("GPL v2");
1092 MODULE_VERSION(ASD_DRIVER_VERSION);