release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/scsi/pm8001/pm8001_init.c

   1 /*
   2  * PMC-Sierra SPC 8001 SAS/SATA based host adapters driver
   3  *
   4  * Copyright (c) 2008-2009 USI Co., Ltd.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions, and the following disclaimer,
  12  *    without modification.
  13  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  14  *    substantially similar to the "NO WARRANTY" disclaimer below
  15  *    ("Disclaimer") and any redistribution must be conditioned upon
  16  *    including a substantially similar Disclaimer requirement for further
  17  *    binary redistribution.
  18  * 3. Neither the names of the above-listed copyright holders nor the names
  19  *    of any contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * Alternatively, this software may be distributed under the terms of the
  23  * GNU General Public License ("GPL") version 2 as published by the Free
  24  * Software Foundation.
  25  *
  26  * NO WARRANTY
  27  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  28  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  29  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  30  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  31  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  35  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  36  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  37  * POSSIBILITY OF SUCH DAMAGES.
  38  *
  39  */
  40
  41 #include <linux/slab.h>
  42 #include "pm8001_sas.h"
  43 #include "pm8001_chips.h"
  44
  45 static struct scsi_transport_template *pm8001_stt;
  46
  47 static const struct pm8001_chip_info pm8001_chips[] = {
  48         [chip_8001] = {  8, &pm8001_8001_dispatch,},
  49 };
  50 static int pm8001_id;
  51
  52 LIST_HEAD(hba_list);
  53
  54 /**
  55  * The main structure which LLDD must register for scsi core.
  56  */
  57 static struct scsi_host_template pm8001_sht = {
  58         .module                 = THIS_MODULE,
  59         .name                   = DRV_NAME,
  60         .queuecommand           = sas_queuecommand,
  61         .target_alloc           = sas_target_alloc,
  62         .slave_configure        = pm8001_slave_configure,
  63         .slave_destroy          = sas_slave_destroy,
  64         .scan_finished          = pm8001_scan_finished,
  65         .scan_start             = pm8001_scan_start,
  66         .change_queue_depth     = sas_change_queue_depth,
  67         .change_queue_type      = sas_change_queue_type,
  68         .bios_param             = sas_bios_param,
  69         .can_queue              = 1,
  70         .cmd_per_lun            = 1,
  71         .this_id                = -1,
  72         .sg_tablesize           = SG_ALL,
  73         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
  74         .use_clustering         = ENABLE_CLUSTERING,
  75         .eh_device_reset_handler = sas_eh_device_reset_handler,
  76         .eh_bus_reset_handler   = sas_eh_bus_reset_handler,
  77         .slave_alloc            = pm8001_slave_alloc,
  78         .target_destroy         = sas_target_destroy,
  79         .ioctl                  = sas_ioctl,
  80         .shost_attrs            = pm8001_host_attrs,
  81 };
  82
  83 /**
  84  * Sas layer call this function to execute specific task.
  85  */
  86 static struct sas_domain_function_template pm8001_transport_ops = {
  87         .lldd_dev_found         = pm8001_dev_found,
  88         .lldd_dev_gone          = pm8001_dev_gone,
  89
  90         .lldd_execute_task      = pm8001_queue_command,
  91         .lldd_control_phy       = pm8001_phy_control,
  92
  93         .lldd_abort_task        = pm8001_abort_task,
  94         .lldd_abort_task_set    = pm8001_abort_task_set,
  95         .lldd_clear_aca         = pm8001_clear_aca,
  96         .lldd_clear_task_set    = pm8001_clear_task_set,
  97         .lldd_I_T_nexus_reset   = pm8001_I_T_nexus_reset,
  98         .lldd_lu_reset          = pm8001_lu_reset,
  99         .lldd_query_task        = pm8001_query_task,
 100 };
 101
 102 /**
 103  *pm8001_phy_init - initiate our adapter phys
 104  *@pm8001_ha: our hba structure.
 105  *@phy_id: phy id.
 106  */
 107 static void __devinit pm8001_phy_init(struct pm8001_hba_info *pm8001_ha,
 108         int phy_id)
 109 {
 110         struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
 111         struct asd_sas_phy *sas_phy = &phy->sas_phy;
 112         phy->phy_state = 0;
 113         phy->pm8001_ha = pm8001_ha;
 114         sas_phy->enabled = (phy_id < pm8001_ha->chip->n_phy) ? 1 : 0;
 115         sas_phy->class = SAS;
 116         sas_phy->iproto = SAS_PROTOCOL_ALL;
 117         sas_phy->tproto = 0;
 118         sas_phy->type = PHY_TYPE_PHYSICAL;
 119         sas_phy->role = PHY_ROLE_INITIATOR;
 120         sas_phy->oob_mode = OOB_NOT_CONNECTED;
 121         sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
 122         sas_phy->id = phy_id;
 123         sas_phy->sas_addr = &pm8001_ha->sas_addr[0];
 124         sas_phy->frame_rcvd = &phy->frame_rcvd[0];
 125         sas_phy->ha = (struct sas_ha_struct *)pm8001_ha->shost->hostdata;
 126         sas_phy->lldd_phy = phy;
 127 }
 128
 129 /**
 130  *pm8001_free - free hba
 131  *@pm8001_ha:   our hba structure.
 132  *
 133  */
 134 static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
 135 {
 136         int i;
 137         struct pm8001_wq *wq;
 138
 139         if (!pm8001_ha)
 140                 return;
 141
 142         for (i = 0; i < USI_MAX_MEMCNT; i++) {
 143                 if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) {
 144                         pci_free_consistent(pm8001_ha->pdev,
 145                                 pm8001_ha->memoryMap.region[i].element_size,
 146                                 pm8001_ha->memoryMap.region[i].virt_ptr,
 147                                 pm8001_ha->memoryMap.region[i].phys_addr);
 148                         }
 149         }
 150         PM8001_CHIP_DISP->chip_iounmap(pm8001_ha);
 151         if (pm8001_ha->shost)
 152                 scsi_host_put(pm8001_ha->shost);
 153         list_for_each_entry(wq, &pm8001_ha->wq_list, entry)
 154                 cancel_delayed_work(&wq->work_q);
 155         kfree(pm8001_ha->tags);
 156         kfree(pm8001_ha);
 157 }
 158
 159 #ifdef PM8001_USE_TASKLET
 160 static void pm8001_tasklet(unsigned long opaque)
 161 {
 162         struct pm8001_hba_info *pm8001_ha;
 163         pm8001_ha = (struct pm8001_hba_info *)opaque;;
 164         if (unlikely(!pm8001_ha))
 165                 BUG_ON(1);
 166         PM8001_CHIP_DISP->isr(pm8001_ha);
 167 }
 168 #endif
 169
 170
 171  /**
 172   * pm8001_interrupt - when HBA originate a interrupt,we should invoke this
 173   * dispatcher to handle each case.
 174   * @irq: irq number.
 175   * @opaque: the passed general host adapter struct
 176   */
 177 static irqreturn_t pm8001_interrupt(int irq, void *opaque)
 178 {
 179         struct pm8001_hba_info *pm8001_ha;
 180         irqreturn_t ret = IRQ_HANDLED;
 181         struct sas_ha_struct *sha = opaque;
 182         pm8001_ha = sha->lldd_ha;
 183         if (unlikely(!pm8001_ha))
 184                 return IRQ_NONE;
 185         if (!PM8001_CHIP_DISP->is_our_interupt(pm8001_ha))
 186                 return IRQ_NONE;
 187 #ifdef PM8001_USE_TASKLET
 188         tasklet_schedule(&pm8001_ha->tasklet);
 189 #else
 190         ret = PM8001_CHIP_DISP->isr(pm8001_ha);
 191 #endif
 192         return ret;
 193 }
 194
 195 /**
 196  * pm8001_alloc - initiate our hba structure and 6 DMAs area.
 197  * @pm8001_ha:our hba structure.
 198  *
 199  */
 200 static int __devinit pm8001_alloc(struct pm8001_hba_info *pm8001_ha)
 201 {
 202         int i;
 203         spin_lock_init(&pm8001_ha->lock);
 204         for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
 205                 pm8001_phy_init(pm8001_ha, i);
 206                 pm8001_ha->port[i].wide_port_phymap = 0;
 207                 pm8001_ha->port[i].port_attached = 0;
 208                 pm8001_ha->port[i].port_state = 0;
 209                 INIT_LIST_HEAD(&pm8001_ha->port[i].list);
 210         }
 211
 212         pm8001_ha->tags = kzalloc(PM8001_MAX_CCB, GFP_KERNEL);
 213         if (!pm8001_ha->tags)
 214                 goto err_out;
 215         /* MPI Memory region 1 for AAP Event Log for fw */
 216         pm8001_ha->memoryMap.region[AAP1].num_elements = 1;
 217         pm8001_ha->memoryMap.region[AAP1].element_size = PM8001_EVENT_LOG_SIZE;
 218         pm8001_ha->memoryMap.region[AAP1].total_len = PM8001_EVENT_LOG_SIZE;
 219         pm8001_ha->memoryMap.region[AAP1].alignment = 32;
 220
 221         /* MPI Memory region 2 for IOP Event Log for fw */
 222         pm8001_ha->memoryMap.region[IOP].num_elements = 1;
 223         pm8001_ha->memoryMap.region[IOP].element_size = PM8001_EVENT_LOG_SIZE;
 224         pm8001_ha->memoryMap.region[IOP].total_len = PM8001_EVENT_LOG_SIZE;
 225         pm8001_ha->memoryMap.region[IOP].alignment = 32;
 226
 227         /* MPI Memory region 3 for consumer Index of inbound queues */
 228         pm8001_ha->memoryMap.region[CI].num_elements = 1;
 229         pm8001_ha->memoryMap.region[CI].element_size = 4;
 230         pm8001_ha->memoryMap.region[CI].total_len = 4;
 231         pm8001_ha->memoryMap.region[CI].alignment = 4;
 232
 233         /* MPI Memory region 4 for producer Index of outbound queues */
 234         pm8001_ha->memoryMap.region[PI].num_elements = 1;
 235         pm8001_ha->memoryMap.region[PI].element_size = 4;
 236         pm8001_ha->memoryMap.region[PI].total_len = 4;
 237         pm8001_ha->memoryMap.region[PI].alignment = 4;
 238
 239         /* MPI Memory region 5 inbound queues */
 240         pm8001_ha->memoryMap.region[IB].num_elements = 256;
 241         pm8001_ha->memoryMap.region[IB].element_size = 64;
 242         pm8001_ha->memoryMap.region[IB].total_len = 256 * 64;
 243         pm8001_ha->memoryMap.region[IB].alignment = 64;
 244
 245         /* MPI Memory region 6 inbound queues */
 246         pm8001_ha->memoryMap.region[OB].num_elements = 256;
 247         pm8001_ha->memoryMap.region[OB].element_size = 64;
 248         pm8001_ha->memoryMap.region[OB].total_len = 256 * 64;
 249         pm8001_ha->memoryMap.region[OB].alignment = 64;
 250
 251         /* Memory region write DMA*/
 252         pm8001_ha->memoryMap.region[NVMD].num_elements = 1;
 253         pm8001_ha->memoryMap.region[NVMD].element_size = 4096;
 254         pm8001_ha->memoryMap.region[NVMD].total_len = 4096;
 255         /* Memory region for devices*/
 256         pm8001_ha->memoryMap.region[DEV_MEM].num_elements = 1;
 257         pm8001_ha->memoryMap.region[DEV_MEM].element_size = PM8001_MAX_DEVICES *
 258                 sizeof(struct pm8001_device);
 259         pm8001_ha->memoryMap.region[DEV_MEM].total_len = PM8001_MAX_DEVICES *
 260                 sizeof(struct pm8001_device);
 261
 262         /* Memory region for ccb_info*/
 263         pm8001_ha->memoryMap.region[CCB_MEM].num_elements = 1;
 264         pm8001_ha->memoryMap.region[CCB_MEM].element_size = PM8001_MAX_CCB *
 265                 sizeof(struct pm8001_ccb_info);
 266         pm8001_ha->memoryMap.region[CCB_MEM].total_len = PM8001_MAX_CCB *
 267                 sizeof(struct pm8001_ccb_info);
 268
 269         for (i = 0; i < USI_MAX_MEMCNT; i++) {
 270                 if (pm8001_mem_alloc(pm8001_ha->pdev,
 271                         &pm8001_ha->memoryMap.region[i].virt_ptr,
 272                         &pm8001_ha->memoryMap.region[i].phys_addr,
 273                         &pm8001_ha->memoryMap.region[i].phys_addr_hi,
 274                         &pm8001_ha->memoryMap.region[i].phys_addr_lo,
 275                         pm8001_ha->memoryMap.region[i].total_len,
 276                         pm8001_ha->memoryMap.region[i].alignment) != 0) {
 277                                 PM8001_FAIL_DBG(pm8001_ha,
 278                                         pm8001_printk("Mem%d alloc failed\n",
 279                                         i));
 280                                 goto err_out;
 281                 }
 282         }
 283
 284         pm8001_ha->devices = pm8001_ha->memoryMap.region[DEV_MEM].virt_ptr;
 285         for (i = 0; i < PM8001_MAX_DEVICES; i++) {
 286                 pm8001_ha->devices[i].dev_type = NO_DEVICE;
 287                 pm8001_ha->devices[i].id = i;
 288                 pm8001_ha->devices[i].device_id = PM8001_MAX_DEVICES;
 289                 pm8001_ha->devices[i].running_req = 0;
 290         }
 291         pm8001_ha->ccb_info = pm8001_ha->memoryMap.region[CCB_MEM].virt_ptr;
 292         for (i = 0; i < PM8001_MAX_CCB; i++) {
 293                 pm8001_ha->ccb_info[i].ccb_dma_handle =
 294                         pm8001_ha->memoryMap.region[CCB_MEM].phys_addr +
 295                         i * sizeof(struct pm8001_ccb_info);
 296                 pm8001_ha->ccb_info[i].task = NULL;
 297                 pm8001_ha->ccb_info[i].ccb_tag = 0xffffffff;
 298                 pm8001_ha->ccb_info[i].device = NULL;
 299                 ++pm8001_ha->tags_num;
 300         }
 301         pm8001_ha->flags = PM8001F_INIT_TIME;
 302         /* Initialize tags */
 303         pm8001_tag_init(pm8001_ha);
 304         return 0;
 305 err_out:
 306         return 1;
 307 }
 308
 309 /**
 310  * pm8001_ioremap - remap the pci high physical address to kernal virtual
 311  * address so that we can access them.
 312  * @pm8001_ha:our hba structure.
 313  */
 314 static int pm8001_ioremap(struct pm8001_hba_info *pm8001_ha)
 315 {
 316         u32 bar;
 317         u32 logicalBar = 0;
 318         struct pci_dev *pdev;
 319
 320         pdev = pm8001_ha->pdev;
 321         /* map pci mem (PMC pci base 0-3)*/
 322         for (bar = 0; bar < 6; bar++) {
 323                 /*
 324                 ** logical BARs for SPC:
 325                 ** bar 0 and 1 - logical BAR0
 326                 ** bar 2 and 3 - logical BAR1
 327                 ** bar4 - logical BAR2
 328                 ** bar5 - logical BAR3
 329                 ** Skip the appropriate assignments:
 330                 */
 331                 if ((bar == 1) || (bar == 3))
 332                         continue;
 333                 if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
 334                         pm8001_ha->io_mem[logicalBar].membase =
 335                                 pci_resource_start(pdev, bar);
 336                         pm8001_ha->io_mem[logicalBar].membase &=
 337                                 (u32)PCI_BASE_ADDRESS_MEM_MASK;
 338                         pm8001_ha->io_mem[logicalBar].memsize =
 339                                 pci_resource_len(pdev, bar);
 340                         pm8001_ha->io_mem[logicalBar].memvirtaddr =
 341                                 ioremap(pm8001_ha->io_mem[logicalBar].membase,
 342                                 pm8001_ha->io_mem[logicalBar].memsize);
 343                         PM8001_INIT_DBG(pm8001_ha,
 344                                 pm8001_printk("PCI: bar %d, logicalBar %d "
 345                                 "virt_addr=%lx,len=%d\n", bar, logicalBar,
 346                                 (unsigned long)
 347                                 pm8001_ha->io_mem[logicalBar].memvirtaddr,
 348                                 pm8001_ha->io_mem[logicalBar].memsize));
 349                 } else {
 350                         pm8001_ha->io_mem[logicalBar].membase   = 0;
 351                         pm8001_ha->io_mem[logicalBar].memsize   = 0;
 352                         pm8001_ha->io_mem[logicalBar].memvirtaddr = 0;
 353                 }
 354                 logicalBar++;
 355         }
 356         return 0;
 357 }
 358
 359 /**
 360  * pm8001_pci_alloc - initialize our ha card structure
 361  * @pdev: pci device.
 362  * @ent: ent
 363  * @shost: scsi host struct which has been initialized before.
 364  */
 365 static struct pm8001_hba_info *__devinit
 366 pm8001_pci_alloc(struct pci_dev *pdev, u32 chip_id, struct Scsi_Host *shost)
 367 {
 368         struct pm8001_hba_info *pm8001_ha;
 369         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 370
 371
 372         pm8001_ha = sha->lldd_ha;
 373         if (!pm8001_ha)
 374                 return NULL;
 375
 376         pm8001_ha->pdev = pdev;
 377         pm8001_ha->dev = &pdev->dev;
 378         pm8001_ha->chip_id = chip_id;
 379         pm8001_ha->chip = &pm8001_chips[pm8001_ha->chip_id];
 380         pm8001_ha->irq = pdev->irq;
 381         pm8001_ha->sas = sha;
 382         pm8001_ha->shost = shost;
 383         pm8001_ha->id = pm8001_id++;
 384         INIT_LIST_HEAD(&pm8001_ha->wq_list);
 385         pm8001_ha->logging_level = 0x01;
 386         sprintf(pm8001_ha->name, "%s%d", DRV_NAME, pm8001_ha->id);
 387 #ifdef PM8001_USE_TASKLET
 388         tasklet_init(&pm8001_ha->tasklet, pm8001_tasklet,
 389                 (unsigned long)pm8001_ha);
 390 #endif
 391         pm8001_ioremap(pm8001_ha);
 392         if (!pm8001_alloc(pm8001_ha))
 393                 return pm8001_ha;
 394         pm8001_free(pm8001_ha);
 395         return NULL;
 396 }
 397
 398 /**
 399  * pci_go_44 - pm8001 specified, its DMA is 44 bit rather than 64 bit
 400  * @pdev: pci device.
 401  */
 402 static int pci_go_44(struct pci_dev *pdev)
 403 {
 404         int rc;
 405
 406         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(44))) {
 407                 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(44));
 408                 if (rc) {
 409                         rc = pci_set_consistent_dma_mask(pdev,
 410                                 DMA_BIT_MASK(32));
 411                         if (rc) {
 412                                 dev_printk(KERN_ERR, &pdev->dev,
 413                                         "44-bit DMA enable failed\n");
 414                                 return rc;
 415                         }
 416                 }
 417         } else {
 418                 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 419                 if (rc) {
 420                         dev_printk(KERN_ERR, &pdev->dev,
 421                                 "32-bit DMA enable failed\n");
 422                         return rc;
 423                 }
 424                 rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 425                 if (rc) {
 426                         dev_printk(KERN_ERR, &pdev->dev,
 427                                 "32-bit consistent DMA enable failed\n");
 428                         return rc;
 429                 }
 430         }
 431         return rc;
 432 }
 433
 434 /**
 435  * pm8001_prep_sas_ha_init - allocate memory in general hba struct && init them.
 436  * @shost: scsi host which has been allocated outside.
 437  * @chip_info: our ha struct.
 438  */
 439 static int __devinit pm8001_prep_sas_ha_init(struct Scsi_Host * shost,
 440         const struct pm8001_chip_info *chip_info)
 441 {
 442         int phy_nr, port_nr;
 443         struct asd_sas_phy **arr_phy;
 444         struct asd_sas_port **arr_port;
 445         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 446
 447         phy_nr = chip_info->n_phy;
 448         port_nr = phy_nr;
 449         memset(sha, 0x00, sizeof(*sha));
 450         arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
 451         if (!arr_phy)
 452                 goto exit;
 453         arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
 454         if (!arr_port)
 455                 goto exit_free2;
 456
 457         sha->sas_phy = arr_phy;
 458         sha->sas_port = arr_port;
 459         sha->lldd_ha = kzalloc(sizeof(struct pm8001_hba_info), GFP_KERNEL);
 460         if (!sha->lldd_ha)
 461                 goto exit_free1;
 462
 463         shost->transportt = pm8001_stt;
 464         shost->max_id = PM8001_MAX_DEVICES;
 465         shost->max_lun = 8;
 466         shost->max_channel = 0;
 467         shost->unique_id = pm8001_id;
 468         shost->max_cmd_len = 16;
 469         shost->can_queue = PM8001_CAN_QUEUE;
 470         shost->cmd_per_lun = 32;
 471         return 0;
 472 exit_free1:
 473         kfree(arr_port);
 474 exit_free2:
 475         kfree(arr_phy);
 476 exit:
 477         return -1;
 478 }
 479
 480 /**
 481  * pm8001_post_sas_ha_init - initialize general hba struct defined in libsas
 482  * @shost: scsi host which has been allocated outside
 483  * @chip_info: our ha struct.
 484  */
 485 static void  __devinit pm8001_post_sas_ha_init(struct Scsi_Host *shost,
 486         const struct pm8001_chip_info *chip_info)
 487 {
 488         int i = 0;
 489         struct pm8001_hba_info *pm8001_ha;
 490         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 491
 492         pm8001_ha = sha->lldd_ha;
 493         for (i = 0; i < chip_info->n_phy; i++) {
 494                 sha->sas_phy[i] = &pm8001_ha->phy[i].sas_phy;
 495                 sha->sas_port[i] = &pm8001_ha->port[i].sas_port;
 496         }
 497         sha->sas_ha_name = DRV_NAME;
 498         sha->dev = pm8001_ha->dev;
 499
 500         sha->lldd_module = THIS_MODULE;
 501         sha->sas_addr = &pm8001_ha->sas_addr[0];
 502         sha->num_phys = chip_info->n_phy;
 503         sha->lldd_max_execute_num = 1;
 504         sha->lldd_queue_size = PM8001_CAN_QUEUE;
 505         sha->core.shost = shost;
 506 }
 507
 508 /**
 509  * pm8001_init_sas_add - initialize sas address
 510  * @chip_info: our ha struct.
 511  *
 512  * Currently we just set the fixed SAS address to our HBA,for manufacture,
 513  * it should read from the EEPROM
 514  */
 515 static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
 516 {
 517         u8 i;
 518 #ifdef PM8001_READ_VPD
 519         DECLARE_COMPLETION_ONSTACK(completion);
 520         struct pm8001_ioctl_payload payload;
 521         pm8001_ha->nvmd_completion = &completion;
 522         payload.minor_function = 0;
 523         payload.length = 128;
 524         payload.func_specific = kzalloc(128, GFP_KERNEL);
 525         PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
 526         wait_for_completion(&completion);
 527         for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
 528                 memcpy(&pm8001_ha->phy[i].dev_sas_addr, pm8001_ha->sas_addr,
 529                         SAS_ADDR_SIZE);
 530                 PM8001_INIT_DBG(pm8001_ha,
 531                         pm8001_printk("phy %d sas_addr = %016llx \n", i,
 532                         pm8001_ha->phy[i].dev_sas_addr));
 533         }
 534 #else
 535         for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
 536                 pm8001_ha->phy[i].dev_sas_addr = 0x50010c600047f9d0ULL;
 537                 pm8001_ha->phy[i].dev_sas_addr =
 538                         cpu_to_be64((u64)
 539                                 (*(u64 *)&pm8001_ha->phy[i].dev_sas_addr));
 540         }
 541         memcpy(pm8001_ha->sas_addr, &pm8001_ha->phy[0].dev_sas_addr,
 542                 SAS_ADDR_SIZE);
 543 #endif
 544 }
 545
 546 #ifdef PM8001_USE_MSIX
 547 /**
 548  * pm8001_setup_msix - enable MSI-X interrupt
 549  * @chip_info: our ha struct.
 550  * @irq_handler: irq_handler
 551  */
 552 static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha,
 553         irq_handler_t irq_handler)
 554 {
 555         u32 i = 0, j = 0;
 556         u32 number_of_intr = 1;
 557         int flag = 0;
 558         u32 max_entry;
 559         int rc;
 560         max_entry = sizeof(pm8001_ha->msix_entries) /
 561                 sizeof(pm8001_ha->msix_entries[0]);
 562         flag |= IRQF_DISABLED;
 563         for (i = 0; i < max_entry ; i++)
 564                 pm8001_ha->msix_entries[i].entry = i;
 565         rc = pci_enable_msix(pm8001_ha->pdev, pm8001_ha->msix_entries,
 566                 number_of_intr);
 567         pm8001_ha->number_of_intr = number_of_intr;
 568         if (!rc) {
 569                 for (i = 0; i < number_of_intr; i++) {
 570                         if (request_irq(pm8001_ha->msix_entries[i].vector,
 571                                 irq_handler, flag, DRV_NAME,
 572                                 SHOST_TO_SAS_HA(pm8001_ha->shost))) {
 573                                 for (j = 0; j < i; j++)
 574                                         free_irq(
 575                                         pm8001_ha->msix_entries[j].vector,
 576                                         SHOST_TO_SAS_HA(pm8001_ha->shost));
 577                                 pci_disable_msix(pm8001_ha->pdev);
 578                                 break;
 579                         }
 580                 }
 581         }
 582         return rc;
 583 }
 584 #endif
 585
 586 /**
 587  * pm8001_request_irq - register interrupt
 588  * @chip_info: our ha struct.
 589  */
 590 static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha)
 591 {
 592         struct pci_dev *pdev;
 593         irq_handler_t irq_handler = pm8001_interrupt;
 594         int rc;
 595
 596         pdev = pm8001_ha->pdev;
 597
 598 #ifdef PM8001_USE_MSIX
 599         if (pci_find_capability(pdev, PCI_CAP_ID_MSIX))
 600                 return pm8001_setup_msix(pm8001_ha, irq_handler);
 601         else
 602                 goto intx;
 603 #endif
 604
 605 intx:
 606         /* intialize the INT-X interrupt */
 607         rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED, DRV_NAME,
 608                 SHOST_TO_SAS_HA(pm8001_ha->shost));
 609         return rc;
 610 }
 611
 612 /**
 613  * pm8001_pci_probe - probe supported device
 614  * @pdev: pci device which kernel has been prepared for.
 615  * @ent: pci device id
 616  *
 617  * This function is the main initialization function, when register a new
 618  * pci driver it is invoked, all struct an hardware initilization should be done
 619  * here, also, register interrupt
 620  */
 621 static int __devinit pm8001_pci_probe(struct pci_dev *pdev,
 622         const struct pci_device_id *ent)
 623 {
 624         unsigned int rc;
 625         u32     pci_reg;
 626         struct pm8001_hba_info *pm8001_ha;
 627         struct Scsi_Host *shost = NULL;
 628         const struct pm8001_chip_info *chip;
 629
 630         dev_printk(KERN_INFO, &pdev->dev,
 631                 "pm8001: driver version %s\n", DRV_VERSION);
 632         rc = pci_enable_device(pdev);
 633         if (rc)
 634                 goto err_out_enable;
 635         pci_set_master(pdev);
 636         /*
 637          * Enable pci slot busmaster by setting pci command register.
 638          * This is required by FW for Cyclone card.
 639          */
 640
 641         pci_read_config_dword(pdev, PCI_COMMAND, &pci_reg);
 642         pci_reg |= 0x157;
 643         pci_write_config_dword(pdev, PCI_COMMAND, pci_reg);
 644         rc = pci_request_regions(pdev, DRV_NAME);
 645         if (rc)
 646                 goto err_out_disable;
 647         rc = pci_go_44(pdev);
 648         if (rc)
 649                 goto err_out_regions;
 650
 651         shost = scsi_host_alloc(&pm8001_sht, sizeof(void *));
 652         if (!shost) {
 653                 rc = -ENOMEM;
 654                 goto err_out_regions;
 655         }
 656         chip = &pm8001_chips[ent->driver_data];
 657         SHOST_TO_SAS_HA(shost) =
 658                 kzalloc(sizeof(struct sas_ha_struct), GFP_KERNEL);
 659         if (!SHOST_TO_SAS_HA(shost)) {
 660                 rc = -ENOMEM;
 661                 goto err_out_free_host;
 662         }
 663
 664         rc = pm8001_prep_sas_ha_init(shost, chip);
 665         if (rc) {
 666                 rc = -ENOMEM;
 667                 goto err_out_free;
 668         }
 669         pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
 670         pm8001_ha = pm8001_pci_alloc(pdev, chip_8001, shost);
 671         if (!pm8001_ha) {
 672                 rc = -ENOMEM;
 673                 goto err_out_free;
 674         }
 675         list_add_tail(&pm8001_ha->list, &hba_list);
 676         PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
 677         rc = PM8001_CHIP_DISP->chip_init(pm8001_ha);
 678         if (rc)
 679                 goto err_out_ha_free;
 680
 681         rc = scsi_add_host(shost, &pdev->dev);
 682         if (rc)
 683                 goto err_out_ha_free;
 684         rc = pm8001_request_irq(pm8001_ha);
 685         if (rc)
 686                 goto err_out_shost;
 687
 688         PM8001_CHIP_DISP->interrupt_enable(pm8001_ha);
 689         pm8001_init_sas_add(pm8001_ha);
 690         pm8001_post_sas_ha_init(shost, chip);
 691         rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
 692         if (rc)
 693                 goto err_out_shost;
 694         scsi_scan_host(pm8001_ha->shost);
 695         return 0;
 696
 697 err_out_shost:
 698         scsi_remove_host(pm8001_ha->shost);
 699 err_out_ha_free:
 700         pm8001_free(pm8001_ha);
 701 err_out_free:
 702         kfree(SHOST_TO_SAS_HA(shost));
 703 err_out_free_host:
 704         kfree(shost);
 705 err_out_regions:
 706         pci_release_regions(pdev);
 707 err_out_disable:
 708         pci_disable_device(pdev);
 709 err_out_enable:
 710         return rc;
 711 }
 712
 713 static void __devexit pm8001_pci_remove(struct pci_dev *pdev)
 714 {
 715         struct sas_ha_struct *sha = pci_get_drvdata(pdev);
 716         struct pm8001_hba_info *pm8001_ha;
 717         int i;
 718         pm8001_ha = sha->lldd_ha;
 719         pci_set_drvdata(pdev, NULL);
 720         sas_unregister_ha(sha);
 721         sas_remove_host(pm8001_ha->shost);
 722         list_del(&pm8001_ha->list);
 723         scsi_remove_host(pm8001_ha->shost);
 724         PM8001_CHIP_DISP->interrupt_disable(pm8001_ha);
 725         PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
 726
 727 #ifdef PM8001_USE_MSIX
 728         for (i = 0; i < pm8001_ha->number_of_intr; i++)
 729                 synchronize_irq(pm8001_ha->msix_entries[i].vector);
 730         for (i = 0; i < pm8001_ha->number_of_intr; i++)
 731                 free_irq(pm8001_ha->msix_entries[i].vector, sha);
 732         pci_disable_msix(pdev);
 733 #else
 734         free_irq(pm8001_ha->irq, sha);
 735 #endif
 736 #ifdef PM8001_USE_TASKLET
 737         tasklet_kill(&pm8001_ha->tasklet);
 738 #endif
 739         pm8001_free(pm8001_ha);
 740         kfree(sha->sas_phy);
 741         kfree(sha->sas_port);
 742         kfree(sha);
 743         pci_release_regions(pdev);
 744         pci_disable_device(pdev);
 745 }
 746
 747 /**
 748  * pm8001_pci_suspend - power management suspend main entry point
 749  * @pdev: PCI device struct
 750  * @state: PM state change to (usually PCI_D3)
 751  *
 752  * Returns 0 success, anything else error.
 753  */
 754 static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 755 {
 756         struct sas_ha_struct *sha = pci_get_drvdata(pdev);
 757         struct pm8001_hba_info *pm8001_ha;
 758         int i , pos;
 759         u32 device_state;
 760         pm8001_ha = sha->lldd_ha;
 761         flush_scheduled_work();
 762         scsi_block_requests(pm8001_ha->shost);
 763         pos = pci_find_capability(pdev, PCI_CAP_ID_PM);
 764         if (pos == 0) {
 765                 printk(KERN_ERR " PCI PM not supported\n");
 766                 return -ENODEV;
 767         }
 768         PM8001_CHIP_DISP->interrupt_disable(pm8001_ha);
 769         PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
 770 #ifdef PM8001_USE_MSIX
 771         for (i = 0; i < pm8001_ha->number_of_intr; i++)
 772                 synchronize_irq(pm8001_ha->msix_entries[i].vector);
 773         for (i = 0; i < pm8001_ha->number_of_intr; i++)
 774                 free_irq(pm8001_ha->msix_entries[i].vector, sha);
 775         pci_disable_msix(pdev);
 776 #else
 777         free_irq(pm8001_ha->irq, sha);
 778 #endif
 779 #ifdef PM8001_USE_TASKLET
 780         tasklet_kill(&pm8001_ha->tasklet);
 781 #endif
 782         device_state = pci_choose_state(pdev, state);
 783         pm8001_printk("pdev=0x%p, slot=%s, entering "
 784                       "operating state [D%d]\n", pdev,
 785                       pm8001_ha->name, device_state);
 786         pci_save_state(pdev);
 787         pci_disable_device(pdev);
 788         pci_set_power_state(pdev, device_state);
 789         return 0;
 790 }
 791
 792 /**
 793  * pm8001_pci_resume - power management resume main entry point
 794  * @pdev: PCI device struct
 795  *
 796  * Returns 0 success, anything else error.
 797  */
 798 static int pm8001_pci_resume(struct pci_dev *pdev)
 799 {
 800         struct sas_ha_struct *sha = pci_get_drvdata(pdev);
 801         struct pm8001_hba_info *pm8001_ha;
 802         int rc;
 803         u32 device_state;
 804         pm8001_ha = sha->lldd_ha;
 805         device_state = pdev->current_state;
 806
 807         pm8001_printk("pdev=0x%p, slot=%s, resuming from previous "
 808                 "operating state [D%d]\n", pdev, pm8001_ha->name, device_state);
 809
 810         pci_set_power_state(pdev, PCI_D0);
 811         pci_enable_wake(pdev, PCI_D0, 0);
 812         pci_restore_state(pdev);
 813         rc = pci_enable_device(pdev);
 814         if (rc) {
 815                 pm8001_printk("slot=%s Enable device failed during resume\n",
 816                               pm8001_ha->name);
 817                 goto err_out_enable;
 818         }
 819
 820         pci_set_master(pdev);
 821         rc = pci_go_44(pdev);
 822         if (rc)
 823                 goto err_out_disable;
 824
 825         PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha, 0x252acbcd);
 826         rc = PM8001_CHIP_DISP->chip_init(pm8001_ha);
 827         if (rc)
 828                 goto err_out_disable;
 829         PM8001_CHIP_DISP->interrupt_disable(pm8001_ha);
 830         rc = pm8001_request_irq(pm8001_ha);
 831         if (rc)
 832                 goto err_out_disable;
 833         #ifdef PM8001_USE_TASKLET
 834         tasklet_init(&pm8001_ha->tasklet, pm8001_tasklet,
 835                     (unsigned long)pm8001_ha);
 836         #endif
 837         PM8001_CHIP_DISP->interrupt_enable(pm8001_ha);
 838         scsi_unblock_requests(pm8001_ha->shost);
 839         return 0;
 840
 841 err_out_disable:
 842         scsi_remove_host(pm8001_ha->shost);
 843         pci_disable_device(pdev);
 844 err_out_enable:
 845         return rc;
 846 }
 847
 848 static struct pci_device_id __devinitdata pm8001_pci_table[] = {
 849         {
 850                 PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001
 851         },
 852         {
 853                 PCI_DEVICE(0x117c, 0x0042),
 854                 .driver_data = chip_8001
 855         },
 856         {} /* terminate list */
 857 };
 858
 859 static struct pci_driver pm8001_pci_driver = {
 860         .name           = DRV_NAME,
 861         .id_table       = pm8001_pci_table,
 862         .probe          = pm8001_pci_probe,
 863         .remove         = __devexit_p(pm8001_pci_remove),
 864         .suspend        = pm8001_pci_suspend,
 865         .resume         = pm8001_pci_resume,
 866 };
 867
 868 /**
 869  *      pm8001_init - initialize scsi transport template
 870  */
 871 static int __init pm8001_init(void)
 872 {
 873         int rc;
 874         pm8001_id = 0;
 875         pm8001_stt = sas_domain_attach_transport(&pm8001_transport_ops);
 876         if (!pm8001_stt)
 877                 return -ENOMEM;
 878         rc = pci_register_driver(&pm8001_pci_driver);
 879         if (rc)
 880                 goto err_out;
 881         return 0;
 882 err_out:
 883         sas_release_transport(pm8001_stt);
 884         return rc;
 885 }
 886
 887 static void __exit pm8001_exit(void)
 888 {
 889         pci_unregister_driver(&pm8001_pci_driver);
 890         sas_release_transport(pm8001_stt);
 891 }
 892
 893 module_init(pm8001_init);
 894 module_exit(pm8001_exit);
 895
 896 MODULE_AUTHOR("Jack Wang <jack_wang@usish.com>");
 897 MODULE_DESCRIPTION("PMC-Sierra PM8001 SAS/SATA controller driver");
 898 MODULE_VERSION(DRV_VERSION);
 899 MODULE_LICENSE("GPL");
 900 MODULE_DEVICE_TABLE(pci, pm8001_pci_table);