drivers/scsi/aic94xx/aic94xx_init.c

   1 /*
   2  * Aic94xx SAS/SATA driver initialization.
   3  *
   4  * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
   5  * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
   6  *
   7  * This file is licensed under GPLv2.
   8  *
   9  * This file is part of the aic94xx driver.
  10  *
  11  * The aic94xx driver is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; version 2 of the
  14  * License.
  15  *
  16  * The aic94xx driver is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with the aic94xx driver; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  24  *
  25  */
  26
  27 #include <linux/module.h>
  28 #include <linux/init.h>
  29 #include <linux/kernel.h>
  30 #include <linux/pci.h>
  31 #include <linux/delay.h>
  32
  33 #include <scsi/scsi_host.h>
  34
  35 #include "aic94xx.h"
  36 #include "aic94xx_reg.h"
  37 #include "aic94xx_hwi.h"
  38 #include "aic94xx_seq.h"
  39
  40 /* The format is "version.release.patchlevel" */
  41 #define ASD_DRIVER_VERSION "1.0.2"
  42
  43 static int use_msi = 0;
  44 module_param_named(use_msi, use_msi, int, S_IRUGO);
  45 MODULE_PARM_DESC(use_msi, "\n"
  46         "\tEnable(1) or disable(0) using PCI MSI.\n"
  47         "\tDefault: 0");
  48
  49 static int lldd_max_execute_num = 0;
  50 module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
  51 MODULE_PARM_DESC(collector, "\n"
  52         "\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
  53         "\tMode.  If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
  54         "\tThe aic94xx SAS LLDD supports both modes.\n"
  55         "\tDefault: 0 (Direct Mode).\n");
  56
  57 char sas_addr_str[2*SAS_ADDR_SIZE + 1] = "";
  58
  59 static struct scsi_transport_template *aic94xx_transport_template;
  60
  61 static struct scsi_host_template aic94xx_sht = {
  62         .module                 = THIS_MODULE,
  63         /* .name is initialized */
  64         .name                   = "aic94xx",
  65         .queuecommand           = sas_queuecommand,
  66         .target_alloc           = sas_target_alloc,
  67         .slave_configure        = sas_slave_configure,
  68         .slave_destroy          = sas_slave_destroy,
  69         .change_queue_depth     = sas_change_queue_depth,
  70         .change_queue_type      = sas_change_queue_type,
  71         .bios_param             = sas_bios_param,
  72         .can_queue              = 1,
  73         .cmd_per_lun            = 1,
  74         .this_id                = -1,
  75         .sg_tablesize           = SG_ALL,
  76         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
  77         .use_clustering         = ENABLE_CLUSTERING,
  78 };
  79
  80 static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
  81 {
  82         int err, i;
  83         struct asd_ha_addrspace *io_handle;
  84
  85         asd_ha->iospace = 0;
  86         for (i = 0; i < 3; i += 2) {
  87                 io_handle = &asd_ha->io_handle[i==0?0:1];
  88                 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
  89                 io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
  90                 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
  91                 err = -ENODEV;
  92                 if (!io_handle->start || !io_handle->len) {
  93                         asd_printk("MBAR%d start or length for %s is 0.\n",
  94                                    i==0?0:1, pci_name(asd_ha->pcidev));
  95                         goto Err;
  96                 }
  97                 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
  98                 if (err) {
  99                         asd_printk("couldn't reserve memory region for %s\n",
 100                                    pci_name(asd_ha->pcidev));
 101                         goto Err;
 102                 }
 103                 if (io_handle->flags & IORESOURCE_CACHEABLE)
 104                         io_handle->addr = ioremap(io_handle->start,
 105                                                   io_handle->len);
 106                 else
 107                         io_handle->addr = ioremap_nocache(io_handle->start,
 108                                                           io_handle->len);
 109                 if (!io_handle->addr) {
 110                         asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
 111                                    pci_name(asd_ha->pcidev));
 112                         goto Err_unreq;
 113                 }
 114         }
 115
 116         return 0;
 117 Err_unreq:
 118         pci_release_region(asd_ha->pcidev, i);
 119 Err:
 120         if (i > 0) {
 121                 io_handle = &asd_ha->io_handle[0];
 122                 iounmap(io_handle->addr);
 123                 pci_release_region(asd_ha->pcidev, 0);
 124         }
 125         return err;
 126 }
 127
 128 static void __devexit asd_unmap_memio(struct asd_ha_struct *asd_ha)
 129 {
 130         struct asd_ha_addrspace *io_handle;
 131
 132         io_handle = &asd_ha->io_handle[1];
 133         iounmap(io_handle->addr);
 134         pci_release_region(asd_ha->pcidev, 2);
 135
 136         io_handle = &asd_ha->io_handle[0];
 137         iounmap(io_handle->addr);
 138         pci_release_region(asd_ha->pcidev, 0);
 139 }
 140
 141 static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
 142 {
 143         int i = PCI_IOBAR_OFFSET, err;
 144         struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
 145
 146         asd_ha->iospace = 1;
 147         io_handle->start = pci_resource_start(asd_ha->pcidev, i);
 148         io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 149         io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 150         io_handle->addr  = (void __iomem *) io_handle->start;
 151         if (!io_handle->start || !io_handle->len) {
 152                 asd_printk("couldn't get IO ports for %s\n",
 153                            pci_name(asd_ha->pcidev));
 154                 return -ENODEV;
 155         }
 156         err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 157         if (err) {
 158                 asd_printk("couldn't reserve io space for %s\n",
 159                            pci_name(asd_ha->pcidev));
 160         }
 161
 162         return err;
 163 }
 164
 165 static void __devexit asd_unmap_ioport(struct asd_ha_struct *asd_ha)
 166 {
 167         pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
 168 }
 169
 170 static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
 171 {
 172         int err;
 173         u16 cmd_reg;
 174
 175         err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
 176         if (err) {
 177                 asd_printk("couldn't read command register of %s\n",
 178                            pci_name(asd_ha->pcidev));
 179                 goto Err;
 180         }
 181
 182         err = -ENODEV;
 183         if (cmd_reg & PCI_COMMAND_MEMORY) {
 184                 if ((err = asd_map_memio(asd_ha)))
 185                         goto Err;
 186         } else if (cmd_reg & PCI_COMMAND_IO) {
 187                 if ((err = asd_map_ioport(asd_ha)))
 188                         goto Err;
 189                 asd_printk("%s ioport mapped -- upgrade your hardware\n",
 190                            pci_name(asd_ha->pcidev));
 191         } else {
 192                 asd_printk("no proper device access to %s\n",
 193                            pci_name(asd_ha->pcidev));
 194                 goto Err;
 195         }
 196
 197         return 0;
 198 Err:
 199         return err;
 200 }
 201
 202 static void __devexit asd_unmap_ha(struct asd_ha_struct *asd_ha)
 203 {
 204         if (asd_ha->iospace)
 205                 asd_unmap_ioport(asd_ha);
 206         else
 207                 asd_unmap_memio(asd_ha);
 208 }
 209
 210 static const char *asd_dev_rev[30] = {
 211         [0] = "A0",
 212         [1] = "A1",
 213         [8] = "B0",
 214 };
 215
 216 static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
 217 {
 218         int err, i;
 219
 220         err = pci_read_config_byte(asd_ha->pcidev, PCI_REVISION_ID,
 221                                    &asd_ha->revision_id);
 222         if (err) {
 223                 asd_printk("couldn't read REVISION ID register of %s\n",
 224                            pci_name(asd_ha->pcidev));
 225                 goto Err;
 226         }
 227         err = -ENODEV;
 228         if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
 229                 asd_printk("%s is revision %s (%X), which is not supported\n",
 230                            pci_name(asd_ha->pcidev),
 231                            asd_dev_rev[asd_ha->revision_id],
 232                            asd_ha->revision_id);
 233                 goto Err;
 234         }
 235         /* Provide some sane default values. */
 236         asd_ha->hw_prof.max_scbs = 512;
 237         asd_ha->hw_prof.max_ddbs = 128;
 238         asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
 239         /* All phys are enabled, by default. */
 240         asd_ha->hw_prof.enabled_phys = 0xFF;
 241         for (i = 0; i < ASD_MAX_PHYS; i++) {
 242                 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
 243                         SAS_LINK_RATE_3_0_GBPS;
 244                 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
 245                         SAS_LINK_RATE_1_5_GBPS;
 246                 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
 247                         SAS_LINK_RATE_1_5_GBPS;
 248                 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
 249                         SAS_LINK_RATE_1_5_GBPS;
 250         }
 251
 252         return 0;
 253 Err:
 254         return err;
 255 }
 256
 257 static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
 258 {
 259         int err = asd_common_setup(asd_ha);
 260
 261         if (err)
 262                 return err;
 263
 264         asd_ha->hw_prof.addr_range = 8;
 265         asd_ha->hw_prof.port_name_base = 0;
 266         asd_ha->hw_prof.dev_name_base = 8;
 267         asd_ha->hw_prof.sata_name_base = 16;
 268
 269         return 0;
 270 }
 271
 272 static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
 273 {
 274         int err = asd_common_setup(asd_ha);
 275
 276         if (err)
 277                 return err;
 278
 279         asd_ha->hw_prof.addr_range = 4;
 280         asd_ha->hw_prof.port_name_base = 0;
 281         asd_ha->hw_prof.dev_name_base = 4;
 282         asd_ha->hw_prof.sata_name_base = 8;
 283
 284         return 0;
 285 }
 286
 287 static ssize_t asd_show_dev_rev(struct device *dev,
 288                                 struct device_attribute *attr, char *buf)
 289 {
 290         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 291         return snprintf(buf, PAGE_SIZE, "%s\n",
 292                         asd_dev_rev[asd_ha->revision_id]);
 293 }
 294 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
 295
 296 static ssize_t asd_show_dev_bios_build(struct device *dev,
 297                                        struct device_attribute *attr,char *buf)
 298 {
 299         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 300         return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
 301 }
 302 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
 303
 304 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
 305                                     struct device_attribute *attr, char *buf)
 306 {
 307         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
 308         return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
 309 }
 310 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
 311
 312 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
 313 {
 314         int err;
 315
 316         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 317         if (err)
 318                 return err;
 319
 320         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 321         if (err)
 322                 goto err_rev;
 323
 324         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 325         if (err)
 326                 goto err_biosb;
 327
 328         return 0;
 329
 330 err_biosb:
 331         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 332 err_rev:
 333         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 334         return err;
 335 }
 336
 337 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
 338 {
 339         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 340         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 341         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 342 }
 343
 344 /* The first entry, 0, is used for dynamic ids, the rest for devices
 345  * we know about.
 346  */
 347 static struct asd_pcidev_struct {
 348         const char * name;
 349         int (*setup)(struct asd_ha_struct *asd_ha);
 350 } asd_pcidev_data[] = {
 351         /* Id 0 is used for dynamic ids. */
 352         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
 353           .setup = asd_aic9410_setup
 354         },
 355         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
 356           .setup = asd_aic9410_setup
 357         },
 358         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
 359           .setup = asd_aic9405_setup
 360         },
 361 };
 362
 363 static inline int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
 364 {
 365         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
 366                                            &asd_ha->pcidev->dev,
 367                                            sizeof(struct scb),
 368                                            8, 0);
 369         if (!asd_ha->scb_pool) {
 370                 asd_printk("couldn't create scb pool\n");
 371                 return -ENOMEM;
 372         }
 373
 374         return 0;
 375 }
 376
 377 /**
 378  * asd_free_edbs -- free empty data buffers
 379  * asd_ha: pointer to host adapter structure
 380  */
 381 static inline void asd_free_edbs(struct asd_ha_struct *asd_ha)
 382 {
 383         struct asd_seq_data *seq = &asd_ha->seq;
 384         int i;
 385
 386         for (i = 0; i < seq->num_edbs; i++)
 387                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
 388         kfree(seq->edb_arr);
 389         seq->edb_arr = NULL;
 390 }
 391
 392 static inline void asd_free_escbs(struct asd_ha_struct *asd_ha)
 393 {
 394         struct asd_seq_data *seq = &asd_ha->seq;
 395         int i;
 396
 397         for (i = 0; i < seq->num_escbs; i++) {
 398                 if (!list_empty(&seq->escb_arr[i]->list))
 399                         list_del_init(&seq->escb_arr[i]->list);
 400
 401                 asd_ascb_free(seq->escb_arr[i]);
 402         }
 403         kfree(seq->escb_arr);
 404         seq->escb_arr = NULL;
 405 }
 406
 407 static inline void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
 408 {
 409         int i;
 410
 411         if (asd_ha->hw_prof.ddb_ext)
 412                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
 413         if (asd_ha->hw_prof.scb_ext)
 414                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
 415
 416         if (asd_ha->hw_prof.ddb_bitmap)
 417                 kfree(asd_ha->hw_prof.ddb_bitmap);
 418         asd_ha->hw_prof.ddb_bitmap = NULL;
 419
 420         for (i = 0; i < ASD_MAX_PHYS; i++) {
 421                 struct asd_phy *phy = &asd_ha->phys[i];
 422
 423                 asd_free_coherent(asd_ha, phy->id_frm_tok);
 424         }
 425         if (asd_ha->seq.escb_arr)
 426                 asd_free_escbs(asd_ha);
 427         if (asd_ha->seq.edb_arr)
 428                 asd_free_edbs(asd_ha);
 429         if (asd_ha->hw_prof.ue.area) {
 430                 kfree(asd_ha->hw_prof.ue.area);
 431                 asd_ha->hw_prof.ue.area = NULL;
 432         }
 433         if (asd_ha->seq.tc_index_array) {
 434                 kfree(asd_ha->seq.tc_index_array);
 435                 kfree(asd_ha->seq.tc_index_bitmap);
 436                 asd_ha->seq.tc_index_array = NULL;
 437                 asd_ha->seq.tc_index_bitmap = NULL;
 438         }
 439         if (asd_ha->seq.actual_dl) {
 440                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
 441                         asd_ha->seq.actual_dl = NULL;
 442                         asd_ha->seq.dl = NULL;
 443         }
 444         if (asd_ha->seq.next_scb.vaddr) {
 445                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
 446                               asd_ha->seq.next_scb.dma_handle);
 447                 asd_ha->seq.next_scb.vaddr = NULL;
 448         }
 449         dma_pool_destroy(asd_ha->scb_pool);
 450         asd_ha->scb_pool = NULL;
 451 }
 452
 453 struct kmem_cache *asd_dma_token_cache;
 454 struct kmem_cache *asd_ascb_cache;
 455
 456 static int asd_create_global_caches(void)
 457 {
 458         if (!asd_dma_token_cache) {
 459                 asd_dma_token_cache
 460                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
 461                                             sizeof(struct asd_dma_tok),
 462                                             0,
 463                                             SLAB_HWCACHE_ALIGN,
 464                                             NULL, NULL);
 465                 if (!asd_dma_token_cache) {
 466                         asd_printk("couldn't create dma token cache\n");
 467                         return -ENOMEM;
 468                 }
 469         }
 470
 471         if (!asd_ascb_cache) {
 472                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
 473                                                    sizeof(struct asd_ascb),
 474                                                    0,
 475                                                    SLAB_HWCACHE_ALIGN,
 476                                                    NULL, NULL);
 477                 if (!asd_ascb_cache) {
 478                         asd_printk("couldn't create ascb cache\n");
 479                         goto Err;
 480                 }
 481         }
 482
 483         return 0;
 484 Err:
 485         kmem_cache_destroy(asd_dma_token_cache);
 486         asd_dma_token_cache = NULL;
 487         return -ENOMEM;
 488 }
 489
 490 static void asd_destroy_global_caches(void)
 491 {
 492         if (asd_dma_token_cache)
 493                 kmem_cache_destroy(asd_dma_token_cache);
 494         asd_dma_token_cache = NULL;
 495
 496         if (asd_ascb_cache)
 497                 kmem_cache_destroy(asd_ascb_cache);
 498         asd_ascb_cache = NULL;
 499 }
 500
 501 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
 502 {
 503         int i;
 504         struct asd_sas_phy   **sas_phys =
 505                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL);
 506         struct asd_sas_port  **sas_ports =
 507                 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL);
 508
 509         if (!sas_phys || !sas_ports) {
 510                 kfree(sas_phys);
 511                 kfree(sas_ports);
 512                 return -ENOMEM;
 513         }
 514
 515         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
 516         asd_ha->sas_ha.lldd_module = THIS_MODULE;
 517         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
 518
 519         for (i = 0; i < ASD_MAX_PHYS; i++) {
 520                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
 521                 sas_ports[i] = &asd_ha->ports[i];
 522         }
 523
 524         asd_ha->sas_ha.sas_phy = sas_phys;
 525         asd_ha->sas_ha.sas_port= sas_ports;
 526         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
 527
 528         asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
 529
 530         return sas_register_ha(&asd_ha->sas_ha);
 531 }
 532
 533 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
 534 {
 535         int err;
 536
 537         err = sas_unregister_ha(&asd_ha->sas_ha);
 538
 539         sas_remove_host(asd_ha->sas_ha.core.shost);
 540         scsi_remove_host(asd_ha->sas_ha.core.shost);
 541         scsi_host_put(asd_ha->sas_ha.core.shost);
 542
 543         kfree(asd_ha->sas_ha.sas_phy);
 544         kfree(asd_ha->sas_ha.sas_port);
 545
 546         return err;
 547 }
 548
 549 static int __devinit asd_pci_probe(struct pci_dev *dev,
 550                                    const struct pci_device_id *id)
 551 {
 552         struct asd_pcidev_struct *asd_dev;
 553         unsigned asd_id = (unsigned) id->driver_data;
 554         struct asd_ha_struct *asd_ha;
 555         struct Scsi_Host *shost;
 556         int err;
 557
 558         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
 559                 asd_printk("wrong driver_data in PCI table\n");
 560                 return -ENODEV;
 561         }
 562
 563         if ((err = pci_enable_device(dev))) {
 564                 asd_printk("couldn't enable device %s\n", pci_name(dev));
 565                 return err;
 566         }
 567
 568         pci_set_master(dev);
 569
 570         err = -ENOMEM;
 571
 572         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
 573         if (!shost)
 574                 goto Err;
 575
 576         asd_dev = &asd_pcidev_data[asd_id];
 577
 578         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
 579         if (!asd_ha) {
 580                 asd_printk("out of memory\n");
 581                 goto Err;
 582         }
 583         asd_ha->pcidev = dev;
 584         asd_ha->sas_ha.pcidev = asd_ha->pcidev;
 585         asd_ha->sas_ha.lldd_ha = asd_ha;
 586
 587         asd_ha->name = asd_dev->name;
 588         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
 589
 590         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
 591         asd_ha->sas_ha.core.shost = shost;
 592         shost->transportt = aic94xx_transport_template;
 593         shost->max_id = ~0;
 594         shost->max_lun = ~0;
 595         shost->max_cmd_len = 16;
 596
 597         err = scsi_add_host(shost, &dev->dev);
 598         if (err) {
 599                 scsi_host_put(shost);
 600                 goto Err_free;
 601         }
 602
 603
 604
 605         err = asd_dev->setup(asd_ha);
 606         if (err)
 607                 goto Err_free;
 608
 609         err = -ENODEV;
 610         if (!pci_set_dma_mask(dev, DMA_64BIT_MASK)
 611             && !pci_set_consistent_dma_mask(dev, DMA_64BIT_MASK))
 612                 ;
 613         else if (!pci_set_dma_mask(dev, DMA_32BIT_MASK)
 614                  && !pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK))
 615                 ;
 616         else {
 617                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
 618                 goto Err_free;
 619         }
 620
 621         pci_set_drvdata(dev, asd_ha);
 622
 623         err = asd_map_ha(asd_ha);
 624         if (err)
 625                 goto Err_free;
 626
 627         err = asd_create_ha_caches(asd_ha);
 628         if (err)
 629                 goto Err_unmap;
 630
 631         err = asd_init_hw(asd_ha);
 632         if (err)
 633                 goto Err_free_cache;
 634
 635         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
 636                    "phys, flash %s, BIOS %s%d\n",
 637                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
 638                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
 639                    asd_ha->hw_prof.num_phys,
 640                    asd_ha->hw_prof.flash.present ? "present" : "not present",
 641                    asd_ha->hw_prof.bios.present ? "build " : "not present",
 642                    asd_ha->hw_prof.bios.bld);
 643
 644         shost->can_queue = asd_ha->seq.can_queue;
 645
 646         if (use_msi)
 647                 pci_enable_msi(asd_ha->pcidev);
 648
 649         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, SA_SHIRQ,
 650                           ASD_DRIVER_NAME, asd_ha);
 651         if (err) {
 652                 asd_printk("couldn't get irq %d for %s\n",
 653                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
 654                 goto Err_irq;
 655         }
 656         asd_enable_ints(asd_ha);
 657
 658         err = asd_init_post_escbs(asd_ha);
 659         if (err) {
 660                 asd_printk("couldn't post escbs for %s\n",
 661                            pci_name(asd_ha->pcidev));
 662                 goto Err_escbs;
 663         }
 664         ASD_DPRINTK("escbs posted\n");
 665
 666         err = asd_create_dev_attrs(asd_ha);
 667         if (err)
 668                 goto Err_dev_attrs;
 669
 670         err = asd_register_sas_ha(asd_ha);
 671         if (err)
 672                 goto Err_reg_sas;
 673
 674         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
 675         if (err) {
 676                 asd_printk("coudln't enable phys, err:%d\n", err);
 677                 goto Err_en_phys;
 678         }
 679         ASD_DPRINTK("enabled phys\n");
 680         /* give the phy enabling interrupt event time to come in (1s
 681          * is empirically about all it takes) */
 682         ssleep(1);
 683         /* Wait for discovery to finish */
 684         scsi_flush_work(asd_ha->sas_ha.core.shost);
 685
 686         return 0;
 687 Err_en_phys:
 688         asd_unregister_sas_ha(asd_ha);
 689 Err_reg_sas:
 690         asd_remove_dev_attrs(asd_ha);
 691 Err_dev_attrs:
 692 Err_escbs:
 693         asd_disable_ints(asd_ha);
 694         free_irq(dev->irq, asd_ha);
 695 Err_irq:
 696         if (use_msi)
 697                 pci_disable_msi(dev);
 698         asd_chip_hardrst(asd_ha);
 699 Err_free_cache:
 700         asd_destroy_ha_caches(asd_ha);
 701 Err_unmap:
 702         asd_unmap_ha(asd_ha);
 703 Err_free:
 704         kfree(asd_ha);
 705         scsi_remove_host(shost);
 706 Err:
 707         pci_disable_device(dev);
 708         return err;
 709 }
 710
 711 static void asd_free_queues(struct asd_ha_struct *asd_ha)
 712 {
 713         unsigned long flags;
 714         LIST_HEAD(pending);
 715         struct list_head *n, *pos;
 716
 717         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
 718         asd_ha->seq.pending = 0;
 719         list_splice_init(&asd_ha->seq.pend_q, &pending);
 720         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
 721
 722         if (!list_empty(&pending))
 723                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
 724
 725         list_for_each_safe(pos, n, &pending) {
 726                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
 727                 /*
 728                  * Delete unexpired ascb timers.  This may happen if we issue
 729                  * a CONTROL PHY scb to an adapter and rmmod before the scb
 730                  * times out.  Apparently we don't wait for the CONTROL PHY
 731                  * to complete, so it doesn't matter if we kill the timer.
 732                  */
 733                 del_timer_sync(&ascb->timer);
 734                 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
 735
 736                 list_del_init(pos);
 737                 ASD_DPRINTK("freeing from pending\n");
 738                 asd_ascb_free(ascb);
 739         }
 740 }
 741
 742 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
 743 {
 744         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
 745         u8 i;
 746
 747         for_each_phy(phy_mask, phy_mask, i) {
 748                 asd_turn_led(asd_ha, i, 0);
 749                 asd_control_led(asd_ha, i, 0);
 750         }
 751 }
 752
 753 static void __devexit asd_pci_remove(struct pci_dev *dev)
 754 {
 755         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
 756
 757         if (!asd_ha)
 758                 return;
 759
 760         asd_unregister_sas_ha(asd_ha);
 761
 762         asd_disable_ints(asd_ha);
 763
 764         asd_remove_dev_attrs(asd_ha);
 765
 766         /* XXX more here as needed */
 767
 768         free_irq(dev->irq, asd_ha);
 769         if (use_msi)
 770                 pci_disable_msi(asd_ha->pcidev);
 771         asd_turn_off_leds(asd_ha);
 772         asd_chip_hardrst(asd_ha);
 773         asd_free_queues(asd_ha);
 774         asd_destroy_ha_caches(asd_ha);
 775         asd_unmap_ha(asd_ha);
 776         kfree(asd_ha);
 777         pci_disable_device(dev);
 778         return;
 779 }
 780
 781 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
 782 {
 783         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
 784 }
 785 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
 786
 787 static int asd_create_driver_attrs(struct device_driver *driver)
 788 {
 789         return driver_create_file(driver, &driver_attr_version);
 790 }
 791
 792 static void asd_remove_driver_attrs(struct device_driver *driver)
 793 {
 794         driver_remove_file(driver, &driver_attr_version);
 795 }
 796
 797 static struct sas_domain_function_template aic94xx_transport_functions = {
 798         .lldd_dev_found         = asd_dev_found,
 799         .lldd_dev_gone          = asd_dev_gone,
 800
 801         .lldd_execute_task      = asd_execute_task,
 802
 803         .lldd_abort_task        = asd_abort_task,
 804         .lldd_abort_task_set    = asd_abort_task_set,
 805         .lldd_clear_aca         = asd_clear_aca,
 806         .lldd_clear_task_set    = asd_clear_task_set,
 807         .lldd_I_T_nexus_reset   = NULL,
 808         .lldd_lu_reset          = asd_lu_reset,
 809         .lldd_query_task        = asd_query_task,
 810
 811         .lldd_clear_nexus_port  = asd_clear_nexus_port,
 812         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
 813
 814         .lldd_control_phy       = asd_control_phy,
 815 };
 816
 817 static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
 818         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR10),
 819          0, 0, 1},
 820         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR12),
 821          0, 0, 1},
 822         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR1E),
 823          0, 0, 1},
 824         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR1F),
 825          0, 0, 1},
 826         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR30),
 827          0, 0, 2},
 828         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR32),
 829          0, 0, 2},
 830         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3E),
 831          0, 0, 2},
 832         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3F),
 833          0, 0, 2},
 834         {}
 835 };
 836
 837 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
 838
 839 static struct pci_driver aic94xx_pci_driver = {
 840         .name           = ASD_DRIVER_NAME,
 841         .id_table       = aic94xx_pci_table,
 842         .probe          = asd_pci_probe,
 843         .remove         = __devexit_p(asd_pci_remove),
 844 };
 845
 846 static int __init aic94xx_init(void)
 847 {
 848         int err;
 849
 850
 851         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
 852                    ASD_DRIVER_VERSION);
 853
 854         err = asd_create_global_caches();
 855         if (err)
 856                 return err;
 857
 858         aic94xx_transport_template =
 859                 sas_domain_attach_transport(&aic94xx_transport_functions);
 860         if (!aic94xx_transport_template)
 861                 goto out_destroy_caches;
 862
 863         err = pci_register_driver(&aic94xx_pci_driver);
 864         if (err)
 865                 goto out_release_transport;
 866
 867         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
 868         if (err)
 869                 goto out_unregister_pcidrv;
 870
 871         return err;
 872
 873  out_unregister_pcidrv:
 874         pci_unregister_driver(&aic94xx_pci_driver);
 875  out_release_transport:
 876         sas_release_transport(aic94xx_transport_template);
 877  out_destroy_caches:
 878         asd_destroy_global_caches();
 879
 880         return err;
 881 }
 882
 883 static void __exit aic94xx_exit(void)
 884 {
 885         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
 886         pci_unregister_driver(&aic94xx_pci_driver);
 887         sas_release_transport(aic94xx_transport_template);
 888         asd_destroy_global_caches();
 889         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
 890                    ASD_DRIVER_VERSION);
 891 }
 892
 893 module_init(aic94xx_init);
 894 module_exit(aic94xx_exit);
 895
 896 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
 897 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
 898 MODULE_LICENSE("GPL v2");
 899 MODULE_VERSION(ASD_DRIVER_VERSION);