drivers/scsi/pm8001/pm8001

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This source file includes following definitions.
pm8001_phy_init
pm8001_free
pm8001_tasklet
pm8001_interrupt_handler_msix
pm8001_interrupt_handler_intx
pm8001_alloc
pm8001_ioremap
pm8001_pci_alloc
pci_go_44
pm8001_prep_sas_ha_init
pm8001_post_sas_ha_init
pm8001_init_sas_add
pm8001_get_phy_settings_info
pm8001_get_internal_phy_settings
pm8001_get_external_phy_settings
pm8001_get_phy_mask
pm8001_set_phy_settings_ven_117c_12G
pm8001_configure_phy_settings
pm8001_setup_msix
pm8001_request_irq
pm8001_pci_probe
pm8001_pci_remove
pm8001_pci_suspend
pm8001_pci_resume
pm8001_init
pm8001_exit
   1 /*
   2  * PMC-Sierra PM8001/8081/8088/8089 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 /**
  48  * chip info structure to identify chip key functionality as
  49  * encryption available/not, no of ports, hw specific function ref
  50  */
  51 static const struct pm8001_chip_info pm8001_chips[] = {
  52         [chip_8001] = {0,  8, &pm8001_8001_dispatch,},
  53         [chip_8008] = {0,  8, &pm8001_80xx_dispatch,},
  54         [chip_8009] = {1,  8, &pm8001_80xx_dispatch,},
  55         [chip_8018] = {0,  16, &pm8001_80xx_dispatch,},
  56         [chip_8019] = {1,  16, &pm8001_80xx_dispatch,},
  57         [chip_8074] = {0,  8, &pm8001_80xx_dispatch,},
  58         [chip_8076] = {0,  16, &pm8001_80xx_dispatch,},
  59         [chip_8077] = {0,  16, &pm8001_80xx_dispatch,},
  60         [chip_8006] = {0,  16, &pm8001_80xx_dispatch,},
  61         [chip_8070] = {0,  8, &pm8001_80xx_dispatch,},
  62         [chip_8072] = {0,  16, &pm8001_80xx_dispatch,},
  63 };
  64 static int pm8001_id;
  65 
  66 LIST_HEAD(hba_list);
  67 
  68 struct workqueue_struct *pm8001_wq;
  69 
  70 /**
  71  * The main structure which LLDD must register for scsi core.
  72  */
  73 static struct scsi_host_template pm8001_sht = {
  74         .module                 = THIS_MODULE,
  75         .name                   = DRV_NAME,
  76         .queuecommand           = sas_queuecommand,
  77         .target_alloc           = sas_target_alloc,
  78         .slave_configure        = sas_slave_configure,
  79         .scan_finished          = pm8001_scan_finished,
  80         .scan_start             = pm8001_scan_start,
  81         .change_queue_depth     = sas_change_queue_depth,
  82         .bios_param             = sas_bios_param,
  83         .can_queue              = 1,
  84         .this_id                = -1,
  85         .sg_tablesize           = SG_ALL,
  86         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
  87         .eh_device_reset_handler = sas_eh_device_reset_handler,
  88         .eh_target_reset_handler = sas_eh_target_reset_handler,
  89         .target_destroy         = sas_target_destroy,
  90         .ioctl                  = sas_ioctl,
  91         .shost_attrs            = pm8001_host_attrs,
  92         .track_queue_depth      = 1,
  93 };
  94 
  95 /**
  96  * Sas layer call this function to execute specific task.
  97  */
  98 static struct sas_domain_function_template pm8001_transport_ops = {
  99         .lldd_dev_found         = pm8001_dev_found,
 100         .lldd_dev_gone          = pm8001_dev_gone,
 101 
 102         .lldd_execute_task      = pm8001_queue_command,
 103         .lldd_control_phy       = pm8001_phy_control,
 104 
 105         .lldd_abort_task        = pm8001_abort_task,
 106         .lldd_abort_task_set    = pm8001_abort_task_set,
 107         .lldd_clear_aca         = pm8001_clear_aca,
 108         .lldd_clear_task_set    = pm8001_clear_task_set,
 109         .lldd_I_T_nexus_reset   = pm8001_I_T_nexus_reset,
 110         .lldd_lu_reset          = pm8001_lu_reset,
 111         .lldd_query_task        = pm8001_query_task,
 112 };
 113 
 114 /**
 115  *pm8001_phy_init - initiate our adapter phys
 116  *@pm8001_ha: our hba structure.
 117  *@phy_id: phy id.
 118  */
 119 static void pm8001_phy_init(struct pm8001_hba_info *pm8001_ha, int phy_id)
 120 {
 121         struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
 122         struct asd_sas_phy *sas_phy = &phy->sas_phy;
 123         phy->phy_state = PHY_LINK_DISABLE;
 124         phy->pm8001_ha = pm8001_ha;
 125         sas_phy->enabled = (phy_id < pm8001_ha->chip->n_phy) ? 1 : 0;
 126         sas_phy->class = SAS;
 127         sas_phy->iproto = SAS_PROTOCOL_ALL;
 128         sas_phy->tproto = 0;
 129         sas_phy->type = PHY_TYPE_PHYSICAL;
 130         sas_phy->role = PHY_ROLE_INITIATOR;
 131         sas_phy->oob_mode = OOB_NOT_CONNECTED;
 132         sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
 133         sas_phy->id = phy_id;
 134         sas_phy->sas_addr = (u8 *)&phy->dev_sas_addr;
 135         sas_phy->frame_rcvd = &phy->frame_rcvd[0];
 136         sas_phy->ha = (struct sas_ha_struct *)pm8001_ha->shost->hostdata;
 137         sas_phy->lldd_phy = phy;
 138 }
 139 
 140 /**
 141  *pm8001_free - free hba
 142  *@pm8001_ha:   our hba structure.
 143  *
 144  */
 145 static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
 146 {
 147         int i;
 148 
 149         if (!pm8001_ha)
 150                 return;
 151 
 152         for (i = 0; i < USI_MAX_MEMCNT; i++) {
 153                 if (pm8001_ha->memoryMap.region[i].virt_ptr != NULL) {
 154                         dma_free_coherent(&pm8001_ha->pdev->dev,
 155                                 (pm8001_ha->memoryMap.region[i].total_len +
 156                                 pm8001_ha->memoryMap.region[i].alignment),
 157                                 pm8001_ha->memoryMap.region[i].virt_ptr,
 158                                 pm8001_ha->memoryMap.region[i].phys_addr);
 159                         }
 160         }
 161         PM8001_CHIP_DISP->chip_iounmap(pm8001_ha);
 162         flush_workqueue(pm8001_wq);
 163         kfree(pm8001_ha->tags);
 164         kfree(pm8001_ha);
 165 }
 166 
 167 #ifdef PM8001_USE_TASKLET
 168 
 169 /**
 170  * tasklet for 64 msi-x interrupt handler
 171  * @opaque: the passed general host adapter struct
 172  * Note: pm8001_tasklet is common for pm8001 & pm80xx
 173  */
 174 static void pm8001_tasklet(unsigned long opaque)
 175 {
 176         struct pm8001_hba_info *pm8001_ha;
 177         struct isr_param *irq_vector;
 178 
 179         irq_vector = (struct isr_param *)opaque;
 180         pm8001_ha = irq_vector->drv_inst;
 181         if (unlikely(!pm8001_ha))
 182                 BUG_ON(1);
 183         PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id);
 184 }
 185 #endif
 186 
 187 /**
 188  * pm8001_interrupt_handler_msix - main MSIX interrupt handler.
 189  * It obtains the vector number and calls the equivalent bottom
 190  * half or services directly.
 191  * @opaque: the passed outbound queue/vector. Host structure is
 192  * retrieved from the same.
 193  */
 194 static irqreturn_t pm8001_interrupt_handler_msix(int irq, void *opaque)
 195 {
 196         struct isr_param *irq_vector;
 197         struct pm8001_hba_info *pm8001_ha;
 198         irqreturn_t ret = IRQ_HANDLED;
 199         irq_vector = (struct isr_param *)opaque;
 200         pm8001_ha = irq_vector->drv_inst;
 201 
 202         if (unlikely(!pm8001_ha))
 203                 return IRQ_NONE;
 204         if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha))
 205                 return IRQ_NONE;
 206 #ifdef PM8001_USE_TASKLET
 207         tasklet_schedule(&pm8001_ha->tasklet[irq_vector->irq_id]);
 208 #else
 209         ret = PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id);
 210 #endif
 211         return ret;
 212 }
 213 
 214 /**
 215  * pm8001_interrupt_handler_intx - main INTx interrupt handler.
 216  * @dev_id: sas_ha structure. The HBA is retrieved from sas_has structure.
 217  */
 218 
 219 static irqreturn_t pm8001_interrupt_handler_intx(int irq, void *dev_id)
 220 {
 221         struct pm8001_hba_info *pm8001_ha;
 222         irqreturn_t ret = IRQ_HANDLED;
 223         struct sas_ha_struct *sha = dev_id;
 224         pm8001_ha = sha->lldd_ha;
 225         if (unlikely(!pm8001_ha))
 226                 return IRQ_NONE;
 227         if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha))
 228                 return IRQ_NONE;
 229 
 230 #ifdef PM8001_USE_TASKLET
 231         tasklet_schedule(&pm8001_ha->tasklet[0]);
 232 #else
 233         ret = PM8001_CHIP_DISP->isr(pm8001_ha, 0);
 234 #endif
 235         return ret;
 236 }
 237 
 238 /**
 239  * pm8001_alloc - initiate our hba structure and 6 DMAs area.
 240  * @pm8001_ha:our hba structure.
 241  *
 242  */
 243 static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha,
 244                         const struct pci_device_id *ent)
 245 {
 246         int i;
 247         spin_lock_init(&pm8001_ha->lock);
 248         spin_lock_init(&pm8001_ha->bitmap_lock);
 249         PM8001_INIT_DBG(pm8001_ha,
 250                 pm8001_printk("pm8001_alloc: PHY:%x\n",
 251                                 pm8001_ha->chip->n_phy));
 252         for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
 253                 pm8001_phy_init(pm8001_ha, i);
 254                 pm8001_ha->port[i].wide_port_phymap = 0;
 255                 pm8001_ha->port[i].port_attached = 0;
 256                 pm8001_ha->port[i].port_state = 0;
 257                 INIT_LIST_HEAD(&pm8001_ha->port[i].list);
 258         }
 259 
 260         pm8001_ha->tags = kzalloc(PM8001_MAX_CCB, GFP_KERNEL);
 261         if (!pm8001_ha->tags)
 262                 goto err_out;
 263         /* MPI Memory region 1 for AAP Event Log for fw */
 264         pm8001_ha->memoryMap.region[AAP1].num_elements = 1;
 265         pm8001_ha->memoryMap.region[AAP1].element_size = PM8001_EVENT_LOG_SIZE;
 266         pm8001_ha->memoryMap.region[AAP1].total_len = PM8001_EVENT_LOG_SIZE;
 267         pm8001_ha->memoryMap.region[AAP1].alignment = 32;
 268 
 269         /* MPI Memory region 2 for IOP Event Log for fw */
 270         pm8001_ha->memoryMap.region[IOP].num_elements = 1;
 271         pm8001_ha->memoryMap.region[IOP].element_size = PM8001_EVENT_LOG_SIZE;
 272         pm8001_ha->memoryMap.region[IOP].total_len = PM8001_EVENT_LOG_SIZE;
 273         pm8001_ha->memoryMap.region[IOP].alignment = 32;
 274 
 275         for (i = 0; i < PM8001_MAX_SPCV_INB_NUM; i++) {
 276                 /* MPI Memory region 3 for consumer Index of inbound queues */
 277                 pm8001_ha->memoryMap.region[CI+i].num_elements = 1;
 278                 pm8001_ha->memoryMap.region[CI+i].element_size = 4;
 279                 pm8001_ha->memoryMap.region[CI+i].total_len = 4;
 280                 pm8001_ha->memoryMap.region[CI+i].alignment = 4;
 281 
 282                 if ((ent->driver_data) != chip_8001) {
 283                         /* MPI Memory region 5 inbound queues */
 284                         pm8001_ha->memoryMap.region[IB+i].num_elements =
 285                                                 PM8001_MPI_QUEUE;
 286                         pm8001_ha->memoryMap.region[IB+i].element_size = 128;
 287                         pm8001_ha->memoryMap.region[IB+i].total_len =
 288                                                 PM8001_MPI_QUEUE * 128;
 289                         pm8001_ha->memoryMap.region[IB+i].alignment = 128;
 290                 } else {
 291                         pm8001_ha->memoryMap.region[IB+i].num_elements =
 292                                                 PM8001_MPI_QUEUE;
 293                         pm8001_ha->memoryMap.region[IB+i].element_size = 64;
 294                         pm8001_ha->memoryMap.region[IB+i].total_len =
 295                                                 PM8001_MPI_QUEUE * 64;
 296                         pm8001_ha->memoryMap.region[IB+i].alignment = 64;
 297                 }
 298         }
 299 
 300         for (i = 0; i < PM8001_MAX_SPCV_OUTB_NUM; i++) {
 301                 /* MPI Memory region 4 for producer Index of outbound queues */
 302                 pm8001_ha->memoryMap.region[PI+i].num_elements = 1;
 303                 pm8001_ha->memoryMap.region[PI+i].element_size = 4;
 304                 pm8001_ha->memoryMap.region[PI+i].total_len = 4;
 305                 pm8001_ha->memoryMap.region[PI+i].alignment = 4;
 306 
 307                 if (ent->driver_data != chip_8001) {
 308                         /* MPI Memory region 6 Outbound queues */
 309                         pm8001_ha->memoryMap.region[OB+i].num_elements =
 310                                                 PM8001_MPI_QUEUE;
 311                         pm8001_ha->memoryMap.region[OB+i].element_size = 128;
 312                         pm8001_ha->memoryMap.region[OB+i].total_len =
 313                                                 PM8001_MPI_QUEUE * 128;
 314                         pm8001_ha->memoryMap.region[OB+i].alignment = 128;
 315                 } else {
 316                         /* MPI Memory region 6 Outbound queues */
 317                         pm8001_ha->memoryMap.region[OB+i].num_elements =
 318                                                 PM8001_MPI_QUEUE;
 319                         pm8001_ha->memoryMap.region[OB+i].element_size = 64;
 320                         pm8001_ha->memoryMap.region[OB+i].total_len =
 321                                                 PM8001_MPI_QUEUE * 64;
 322                         pm8001_ha->memoryMap.region[OB+i].alignment = 64;
 323                 }
 324 
 325         }
 326         /* Memory region write DMA*/
 327         pm8001_ha->memoryMap.region[NVMD].num_elements = 1;
 328         pm8001_ha->memoryMap.region[NVMD].element_size = 4096;
 329         pm8001_ha->memoryMap.region[NVMD].total_len = 4096;
 330         /* Memory region for devices*/
 331         pm8001_ha->memoryMap.region[DEV_MEM].num_elements = 1;
 332         pm8001_ha->memoryMap.region[DEV_MEM].element_size = PM8001_MAX_DEVICES *
 333                 sizeof(struct pm8001_device);
 334         pm8001_ha->memoryMap.region[DEV_MEM].total_len = PM8001_MAX_DEVICES *
 335                 sizeof(struct pm8001_device);
 336 
 337         /* Memory region for ccb_info*/
 338         pm8001_ha->memoryMap.region[CCB_MEM].num_elements = 1;
 339         pm8001_ha->memoryMap.region[CCB_MEM].element_size = PM8001_MAX_CCB *
 340                 sizeof(struct pm8001_ccb_info);
 341         pm8001_ha->memoryMap.region[CCB_MEM].total_len = PM8001_MAX_CCB *
 342                 sizeof(struct pm8001_ccb_info);
 343 
 344         /* Memory region for fw flash */
 345         pm8001_ha->memoryMap.region[FW_FLASH].total_len = 4096;
 346 
 347         pm8001_ha->memoryMap.region[FORENSIC_MEM].num_elements = 1;
 348         pm8001_ha->memoryMap.region[FORENSIC_MEM].total_len = 0x10000;
 349         pm8001_ha->memoryMap.region[FORENSIC_MEM].element_size = 0x10000;
 350         pm8001_ha->memoryMap.region[FORENSIC_MEM].alignment = 0x10000;
 351         for (i = 0; i < USI_MAX_MEMCNT; i++) {
 352                 if (pm8001_mem_alloc(pm8001_ha->pdev,
 353                         &pm8001_ha->memoryMap.region[i].virt_ptr,
 354                         &pm8001_ha->memoryMap.region[i].phys_addr,
 355                         &pm8001_ha->memoryMap.region[i].phys_addr_hi,
 356                         &pm8001_ha->memoryMap.region[i].phys_addr_lo,
 357                         pm8001_ha->memoryMap.region[i].total_len,
 358                         pm8001_ha->memoryMap.region[i].alignment) != 0) {
 359                                 PM8001_FAIL_DBG(pm8001_ha,
 360                                         pm8001_printk("Mem%d alloc failed\n",
 361                                         i));
 362                                 goto err_out;
 363                 }
 364         }
 365 
 366         pm8001_ha->devices = pm8001_ha->memoryMap.region[DEV_MEM].virt_ptr;
 367         for (i = 0; i < PM8001_MAX_DEVICES; i++) {
 368                 pm8001_ha->devices[i].dev_type = SAS_PHY_UNUSED;
 369                 pm8001_ha->devices[i].id = i;
 370                 pm8001_ha->devices[i].device_id = PM8001_MAX_DEVICES;
 371                 pm8001_ha->devices[i].running_req = 0;
 372         }
 373         pm8001_ha->ccb_info = pm8001_ha->memoryMap.region[CCB_MEM].virt_ptr;
 374         for (i = 0; i < PM8001_MAX_CCB; i++) {
 375                 pm8001_ha->ccb_info[i].ccb_dma_handle =
 376                         pm8001_ha->memoryMap.region[CCB_MEM].phys_addr +
 377                         i * sizeof(struct pm8001_ccb_info);
 378                 pm8001_ha->ccb_info[i].task = NULL;
 379                 pm8001_ha->ccb_info[i].ccb_tag = 0xffffffff;
 380                 pm8001_ha->ccb_info[i].device = NULL;
 381                 ++pm8001_ha->tags_num;
 382         }
 383         pm8001_ha->flags = PM8001F_INIT_TIME;
 384         /* Initialize tags */
 385         pm8001_tag_init(pm8001_ha);
 386         return 0;
 387 err_out:
 388         return 1;
 389 }
 390 
 391 /**
 392  * pm8001_ioremap - remap the pci high physical address to kernal virtual
 393  * address so that we can access them.
 394  * @pm8001_ha:our hba structure.
 395  */
 396 static int pm8001_ioremap(struct pm8001_hba_info *pm8001_ha)
 397 {
 398         u32 bar;
 399         u32 logicalBar = 0;
 400         struct pci_dev *pdev;
 401 
 402         pdev = pm8001_ha->pdev;
 403         /* map pci mem (PMC pci base 0-3)*/
 404         for (bar = 0; bar < 6; bar++) {
 405                 /*
 406                 ** logical BARs for SPC:
 407                 ** bar 0 and 1 - logical BAR0
 408                 ** bar 2 and 3 - logical BAR1
 409                 ** bar4 - logical BAR2
 410                 ** bar5 - logical BAR3
 411                 ** Skip the appropriate assignments:
 412                 */
 413                 if ((bar == 1) || (bar == 3))
 414                         continue;
 415                 if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) {
 416                         pm8001_ha->io_mem[logicalBar].membase =
 417                                 pci_resource_start(pdev, bar);
 418                         pm8001_ha->io_mem[logicalBar].memsize =
 419                                 pci_resource_len(pdev, bar);
 420                         pm8001_ha->io_mem[logicalBar].memvirtaddr =
 421                                 ioremap(pm8001_ha->io_mem[logicalBar].membase,
 422                                 pm8001_ha->io_mem[logicalBar].memsize);
 423                         PM8001_INIT_DBG(pm8001_ha,
 424                                 pm8001_printk("PCI: bar %d, logicalBar %d ",
 425                                 bar, logicalBar));
 426                         PM8001_INIT_DBG(pm8001_ha, pm8001_printk(
 427                                 "base addr %llx virt_addr=%llx len=%d\n",
 428                                 (u64)pm8001_ha->io_mem[logicalBar].membase,
 429                                 (u64)(unsigned long)
 430                                 pm8001_ha->io_mem[logicalBar].memvirtaddr,
 431                                 pm8001_ha->io_mem[logicalBar].memsize));
 432                 } else {
 433                         pm8001_ha->io_mem[logicalBar].membase   = 0;
 434                         pm8001_ha->io_mem[logicalBar].memsize   = 0;
 435                         pm8001_ha->io_mem[logicalBar].memvirtaddr = 0;
 436                 }
 437                 logicalBar++;
 438         }
 439         return 0;
 440 }
 441 
 442 /**
 443  * pm8001_pci_alloc - initialize our ha card structure
 444  * @pdev: pci device.
 445  * @ent: ent
 446  * @shost: scsi host struct which has been initialized before.
 447  */
 448 static struct pm8001_hba_info *pm8001_pci_alloc(struct pci_dev *pdev,
 449                                  const struct pci_device_id *ent,
 450                                 struct Scsi_Host *shost)
 451 
 452 {
 453         struct pm8001_hba_info *pm8001_ha;
 454         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 455         int j;
 456 
 457         pm8001_ha = sha->lldd_ha;
 458         if (!pm8001_ha)
 459                 return NULL;
 460 
 461         pm8001_ha->pdev = pdev;
 462         pm8001_ha->dev = &pdev->dev;
 463         pm8001_ha->chip_id = ent->driver_data;
 464         pm8001_ha->chip = &pm8001_chips[pm8001_ha->chip_id];
 465         pm8001_ha->irq = pdev->irq;
 466         pm8001_ha->sas = sha;
 467         pm8001_ha->shost = shost;
 468         pm8001_ha->id = pm8001_id++;
 469         pm8001_ha->logging_level = 0x01;
 470         sprintf(pm8001_ha->name, "%s%d", DRV_NAME, pm8001_ha->id);
 471         /* IOMB size is 128 for 8088/89 controllers */
 472         if (pm8001_ha->chip_id != chip_8001)
 473                 pm8001_ha->iomb_size = IOMB_SIZE_SPCV;
 474         else
 475                 pm8001_ha->iomb_size = IOMB_SIZE_SPC;
 476 
 477 #ifdef PM8001_USE_TASKLET
 478         /* Tasklet for non msi-x interrupt handler */
 479         if ((!pdev->msix_cap || !pci_msi_enabled())
 480             || (pm8001_ha->chip_id == chip_8001))
 481                 tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
 482                         (unsigned long)&(pm8001_ha->irq_vector[0]));
 483         else
 484                 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
 485                         tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet,
 486                                 (unsigned long)&(pm8001_ha->irq_vector[j]));
 487 #endif
 488         pm8001_ioremap(pm8001_ha);
 489         if (!pm8001_alloc(pm8001_ha, ent))
 490                 return pm8001_ha;
 491         pm8001_free(pm8001_ha);
 492         return NULL;
 493 }
 494 
 495 /**
 496  * pci_go_44 - pm8001 specified, its DMA is 44 bit rather than 64 bit
 497  * @pdev: pci device.
 498  */
 499 static int pci_go_44(struct pci_dev *pdev)
 500 {
 501         int rc;
 502 
 503         rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(44));
 504         if (rc) {
 505                 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 506                 if (rc)
 507                         dev_printk(KERN_ERR, &pdev->dev,
 508                                 "32-bit DMA enable failed\n");
 509         }
 510         return rc;
 511 }
 512 
 513 /**
 514  * pm8001_prep_sas_ha_init - allocate memory in general hba struct && init them.
 515  * @shost: scsi host which has been allocated outside.
 516  * @chip_info: our ha struct.
 517  */
 518 static int pm8001_prep_sas_ha_init(struct Scsi_Host *shost,
 519                                    const struct pm8001_chip_info *chip_info)
 520 {
 521         int phy_nr, port_nr;
 522         struct asd_sas_phy **arr_phy;
 523         struct asd_sas_port **arr_port;
 524         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 525 
 526         phy_nr = chip_info->n_phy;
 527         port_nr = phy_nr;
 528         memset(sha, 0x00, sizeof(*sha));
 529         arr_phy = kcalloc(phy_nr, sizeof(void *), GFP_KERNEL);
 530         if (!arr_phy)
 531                 goto exit;
 532         arr_port = kcalloc(port_nr, sizeof(void *), GFP_KERNEL);
 533         if (!arr_port)
 534                 goto exit_free2;
 535 
 536         sha->sas_phy = arr_phy;
 537         sha->sas_port = arr_port;
 538         sha->lldd_ha = kzalloc(sizeof(struct pm8001_hba_info), GFP_KERNEL);
 539         if (!sha->lldd_ha)
 540                 goto exit_free1;
 541 
 542         shost->transportt = pm8001_stt;
 543         shost->max_id = PM8001_MAX_DEVICES;
 544         shost->max_lun = 8;
 545         shost->max_channel = 0;
 546         shost->unique_id = pm8001_id;
 547         shost->max_cmd_len = 16;
 548         shost->can_queue = PM8001_CAN_QUEUE;
 549         shost->cmd_per_lun = 32;
 550         return 0;
 551 exit_free1:
 552         kfree(arr_port);
 553 exit_free2:
 554         kfree(arr_phy);
 555 exit:
 556         return -1;
 557 }
 558 
 559 /**
 560  * pm8001_post_sas_ha_init - initialize general hba struct defined in libsas
 561  * @shost: scsi host which has been allocated outside
 562  * @chip_info: our ha struct.
 563  */
 564 static void  pm8001_post_sas_ha_init(struct Scsi_Host *shost,
 565                                      const struct pm8001_chip_info *chip_info)
 566 {
 567         int i = 0;
 568         struct pm8001_hba_info *pm8001_ha;
 569         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 570 
 571         pm8001_ha = sha->lldd_ha;
 572         for (i = 0; i < chip_info->n_phy; i++) {
 573                 sha->sas_phy[i] = &pm8001_ha->phy[i].sas_phy;
 574                 sha->sas_port[i] = &pm8001_ha->port[i].sas_port;
 575                 sha->sas_phy[i]->sas_addr =
 576                         (u8 *)&pm8001_ha->phy[i].dev_sas_addr;
 577         }
 578         sha->sas_ha_name = DRV_NAME;
 579         sha->dev = pm8001_ha->dev;
 580         sha->strict_wide_ports = 1;
 581         sha->lldd_module = THIS_MODULE;
 582         sha->sas_addr = &pm8001_ha->sas_addr[0];
 583         sha->num_phys = chip_info->n_phy;
 584         sha->core.shost = shost;
 585 }
 586 
 587 /**
 588  * pm8001_init_sas_add - initialize sas address
 589  * @chip_info: our ha struct.
 590  *
 591  * Currently we just set the fixed SAS address to our HBA,for manufacture,
 592  * it should read from the EEPROM
 593  */
 594 static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
 595 {
 596         u8 i, j;
 597         u8 sas_add[8];
 598 #ifdef PM8001_READ_VPD
 599         /* For new SPC controllers WWN is stored in flash vpd
 600         *  For SPC/SPCve controllers WWN is stored in EEPROM
 601         *  For Older SPC WWN is stored in NVMD
 602         */
 603         DECLARE_COMPLETION_ONSTACK(completion);
 604         struct pm8001_ioctl_payload payload;
 605         u16 deviceid;
 606         int rc;
 607 
 608         pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
 609         pm8001_ha->nvmd_completion = &completion;
 610 
 611         if (pm8001_ha->chip_id == chip_8001) {
 612                 if (deviceid == 0x8081 || deviceid == 0x0042) {
 613                         payload.minor_function = 4;
 614                         payload.length = 4096;
 615                 } else {
 616                         payload.minor_function = 0;
 617                         payload.length = 128;
 618                 }
 619         } else if ((pm8001_ha->chip_id == chip_8070 ||
 620                         pm8001_ha->chip_id == chip_8072) &&
 621                         pm8001_ha->pdev->subsystem_vendor == PCI_VENDOR_ID_ATTO) {
 622                 payload.minor_function = 4;
 623                 payload.length = 4096;
 624         } else {
 625                 payload.minor_function = 1;
 626                 payload.length = 4096;
 627         }
 628         payload.offset = 0;
 629         payload.func_specific = kzalloc(payload.length, GFP_KERNEL);
 630         if (!payload.func_specific) {
 631                 PM8001_INIT_DBG(pm8001_ha, pm8001_printk("mem alloc fail\n"));
 632                 return;
 633         }
 634         rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
 635         if (rc) {
 636                 kfree(payload.func_specific);
 637                 PM8001_INIT_DBG(pm8001_ha, pm8001_printk("nvmd failed\n"));
 638                 return;
 639         }
 640         wait_for_completion(&completion);
 641 
 642         for (i = 0, j = 0; i <= 7; i++, j++) {
 643                 if (pm8001_ha->chip_id == chip_8001) {
 644                         if (deviceid == 0x8081)
 645                                 pm8001_ha->sas_addr[j] =
 646                                         payload.func_specific[0x704 + i];
 647                         else if (deviceid == 0x0042)
 648                                 pm8001_ha->sas_addr[j] =
 649                                         payload.func_specific[0x010 + i];
 650                 } else if ((pm8001_ha->chip_id == chip_8070 ||
 651                                 pm8001_ha->chip_id == chip_8072) &&
 652                                 pm8001_ha->pdev->subsystem_vendor == PCI_VENDOR_ID_ATTO) {
 653                         pm8001_ha->sas_addr[j] =
 654                                         payload.func_specific[0x010 + i];
 655                 } else
 656                         pm8001_ha->sas_addr[j] =
 657                                         payload.func_specific[0x804 + i];
 658         }
 659         memcpy(sas_add, pm8001_ha->sas_addr, SAS_ADDR_SIZE);
 660         for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
 661                 if (i && ((i % 4) == 0))
 662                         sas_add[7] = sas_add[7] + 4;
 663                 memcpy(&pm8001_ha->phy[i].dev_sas_addr,
 664                         sas_add, SAS_ADDR_SIZE);
 665                 PM8001_INIT_DBG(pm8001_ha,
 666                         pm8001_printk("phy %d sas_addr = %016llx\n", i,
 667                         pm8001_ha->phy[i].dev_sas_addr));
 668         }
 669         kfree(payload.func_specific);
 670 #else
 671         for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
 672                 pm8001_ha->phy[i].dev_sas_addr = 0x50010c600047f9d0ULL;
 673                 pm8001_ha->phy[i].dev_sas_addr =
 674                         cpu_to_be64((u64)
 675                                 (*(u64 *)&pm8001_ha->phy[i].dev_sas_addr));
 676         }
 677         memcpy(pm8001_ha->sas_addr, &pm8001_ha->phy[0].dev_sas_addr,
 678                 SAS_ADDR_SIZE);
 679 #endif
 680 }
 681 
 682 /*
 683  * pm8001_get_phy_settings_info : Read phy setting values.
 684  * @pm8001_ha : our hba.
 685  */
 686 static int pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha)
 687 {
 688 
 689 #ifdef PM8001_READ_VPD
 690         /*OPTION ROM FLASH read for the SPC cards */
 691         DECLARE_COMPLETION_ONSTACK(completion);
 692         struct pm8001_ioctl_payload payload;
 693         int rc;
 694 
 695         pm8001_ha->nvmd_completion = &completion;
 696         /* SAS ADDRESS read from flash / EEPROM */
 697         payload.minor_function = 6;
 698         payload.offset = 0;
 699         payload.length = 4096;
 700         payload.func_specific = kzalloc(4096, GFP_KERNEL);
 701         if (!payload.func_specific)
 702                 return -ENOMEM;
 703         /* Read phy setting values from flash */
 704         rc = PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
 705         if (rc) {
 706                 kfree(payload.func_specific);
 707                 PM8001_INIT_DBG(pm8001_ha, pm8001_printk("nvmd failed\n"));
 708                 return -ENOMEM;
 709         }
 710         wait_for_completion(&completion);
 711         pm8001_set_phy_profile(pm8001_ha, sizeof(u8), payload.func_specific);
 712         kfree(payload.func_specific);
 713 #endif
 714         return 0;
 715 }
 716 
 717 struct pm8001_mpi3_phy_pg_trx_config {
 718         u32 LaneLosCfg;
 719         u32 LanePgaCfg1;
 720         u32 LanePisoCfg1;
 721         u32 LanePisoCfg2;
 722         u32 LanePisoCfg3;
 723         u32 LanePisoCfg4;
 724         u32 LanePisoCfg5;
 725         u32 LanePisoCfg6;
 726         u32 LaneBctCtrl;
 727 };
 728 
 729 /**
 730  * pm8001_get_internal_phy_settings : Retrieves the internal PHY settings
 731  * @pm8001_ha : our adapter
 732  * @phycfg : PHY config page to populate
 733  */
 734 static
 735 void pm8001_get_internal_phy_settings(struct pm8001_hba_info *pm8001_ha,
 736                 struct pm8001_mpi3_phy_pg_trx_config *phycfg)
 737 {
 738         phycfg->LaneLosCfg   = 0x00000132;
 739         phycfg->LanePgaCfg1  = 0x00203949;
 740         phycfg->LanePisoCfg1 = 0x000000FF;
 741         phycfg->LanePisoCfg2 = 0xFF000001;
 742         phycfg->LanePisoCfg3 = 0xE7011300;
 743         phycfg->LanePisoCfg4 = 0x631C40C0;
 744         phycfg->LanePisoCfg5 = 0xF8102036;
 745         phycfg->LanePisoCfg6 = 0xF74A1000;
 746         phycfg->LaneBctCtrl  = 0x00FB33F8;
 747 }
 748 
 749 /**
 750  * pm8001_get_external_phy_settings : Retrieves the external PHY settings
 751  * @pm8001_ha : our adapter
 752  * @phycfg : PHY config page to populate
 753  */
 754 static
 755 void pm8001_get_external_phy_settings(struct pm8001_hba_info *pm8001_ha,
 756                 struct pm8001_mpi3_phy_pg_trx_config *phycfg)
 757 {
 758         phycfg->LaneLosCfg   = 0x00000132;
 759         phycfg->LanePgaCfg1  = 0x00203949;
 760         phycfg->LanePisoCfg1 = 0x000000FF;
 761         phycfg->LanePisoCfg2 = 0xFF000001;
 762         phycfg->LanePisoCfg3 = 0xE7011300;
 763         phycfg->LanePisoCfg4 = 0x63349140;
 764         phycfg->LanePisoCfg5 = 0xF8102036;
 765         phycfg->LanePisoCfg6 = 0xF80D9300;
 766         phycfg->LaneBctCtrl  = 0x00FB33F8;
 767 }
 768 
 769 /**
 770  * pm8001_get_phy_mask : Retrieves the mask that denotes if a PHY is int/ext
 771  * @pm8001_ha : our adapter
 772  * @phymask : The PHY mask
 773  */
 774 static
 775 void pm8001_get_phy_mask(struct pm8001_hba_info *pm8001_ha, int *phymask)
 776 {
 777         switch (pm8001_ha->pdev->subsystem_device) {
 778         case 0x0070: /* H1280 - 8 external 0 internal */
 779         case 0x0072: /* H12F0 - 16 external 0 internal */
 780                 *phymask = 0x0000;
 781                 break;
 782 
 783         case 0x0071: /* H1208 - 0 external 8 internal */
 784         case 0x0073: /* H120F - 0 external 16 internal */
 785                 *phymask = 0xFFFF;
 786                 break;
 787 
 788         case 0x0080: /* H1244 - 4 external 4 internal */
 789                 *phymask = 0x00F0;
 790                 break;
 791 
 792         case 0x0081: /* H1248 - 4 external 8 internal */
 793                 *phymask = 0x0FF0;
 794                 break;
 795 
 796         case 0x0082: /* H1288 - 8 external 8 internal */
 797                 *phymask = 0xFF00;
 798                 break;
 799 
 800         default:
 801                 PM8001_INIT_DBG(pm8001_ha,
 802                         pm8001_printk("Unknown subsystem device=0x%.04x",
 803                                 pm8001_ha->pdev->subsystem_device));
 804         }
 805 }
 806 
 807 /**
 808  * pm8001_set_phy_settings_ven_117c_12Gb : Configure ATTO 12Gb PHY settings
 809  * @pm8001_ha : our adapter
 810  */
 811 static
 812 int pm8001_set_phy_settings_ven_117c_12G(struct pm8001_hba_info *pm8001_ha)
 813 {
 814         struct pm8001_mpi3_phy_pg_trx_config phycfg_int;
 815         struct pm8001_mpi3_phy_pg_trx_config phycfg_ext;
 816         int phymask = 0;
 817         int i = 0;
 818 
 819         memset(&phycfg_int, 0, sizeof(phycfg_int));
 820         memset(&phycfg_ext, 0, sizeof(phycfg_ext));
 821 
 822         pm8001_get_internal_phy_settings(pm8001_ha, &phycfg_int);
 823         pm8001_get_external_phy_settings(pm8001_ha, &phycfg_ext);
 824         pm8001_get_phy_mask(pm8001_ha, &phymask);
 825 
 826         for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
 827                 if (phymask & (1 << i)) {/* Internal PHY */
 828                         pm8001_set_phy_profile_single(pm8001_ha, i,
 829                                         sizeof(phycfg_int) / sizeof(u32),
 830                                         (u32 *)&phycfg_int);
 831 
 832                 } else { /* External PHY */
 833                         pm8001_set_phy_profile_single(pm8001_ha, i,
 834                                         sizeof(phycfg_ext) / sizeof(u32),
 835                                         (u32 *)&phycfg_ext);
 836                 }
 837         }
 838 
 839         return 0;
 840 }
 841 
 842 /**
 843  * pm8001_configure_phy_settings : Configures PHY settings based on vendor ID.
 844  * @pm8001_ha : our hba.
 845  */
 846 static int pm8001_configure_phy_settings(struct pm8001_hba_info *pm8001_ha)
 847 {
 848         switch (pm8001_ha->pdev->subsystem_vendor) {
 849         case PCI_VENDOR_ID_ATTO:
 850                 if (pm8001_ha->pdev->device == 0x0042) /* 6Gb */
 851                         return 0;
 852                 else
 853                         return pm8001_set_phy_settings_ven_117c_12G(pm8001_ha);
 854 
 855         case PCI_VENDOR_ID_ADAPTEC2:
 856         case 0:
 857                 return 0;
 858 
 859         default:
 860                 return pm8001_get_phy_settings_info(pm8001_ha);
 861         }
 862 }
 863 
 864 #ifdef PM8001_USE_MSIX
 865 /**
 866  * pm8001_setup_msix - enable MSI-X interrupt
 867  * @chip_info: our ha struct.
 868  * @irq_handler: irq_handler
 869  */
 870 static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
 871 {
 872         u32 i = 0, j = 0;
 873         u32 number_of_intr;
 874         int flag = 0;
 875         int rc;
 876         static char intr_drvname[PM8001_MAX_MSIX_VEC][sizeof(DRV_NAME)+3];
 877 
 878         /* SPCv controllers supports 64 msi-x */
 879         if (pm8001_ha->chip_id == chip_8001) {
 880                 number_of_intr = 1;
 881         } else {
 882                 number_of_intr = PM8001_MAX_MSIX_VEC;
 883                 flag &= ~IRQF_SHARED;
 884         }
 885 
 886         rc = pci_alloc_irq_vectors(pm8001_ha->pdev, number_of_intr,
 887                         number_of_intr, PCI_IRQ_MSIX);
 888         if (rc < 0)
 889                 return rc;
 890         pm8001_ha->number_of_intr = number_of_intr;
 891 
 892         PM8001_INIT_DBG(pm8001_ha, pm8001_printk(
 893                 "pci_alloc_irq_vectors request ret:%d no of intr %d\n",
 894                                 rc, pm8001_ha->number_of_intr));
 895 
 896         for (i = 0; i < number_of_intr; i++) {
 897                 snprintf(intr_drvname[i], sizeof(intr_drvname[0]),
 898                                 DRV_NAME"%d", i);
 899                 pm8001_ha->irq_vector[i].irq_id = i;
 900                 pm8001_ha->irq_vector[i].drv_inst = pm8001_ha;
 901 
 902                 rc = request_irq(pci_irq_vector(pm8001_ha->pdev, i),
 903                         pm8001_interrupt_handler_msix, flag,
 904                         intr_drvname[i], &(pm8001_ha->irq_vector[i]));
 905                 if (rc) {
 906                         for (j = 0; j < i; j++) {
 907                                 free_irq(pci_irq_vector(pm8001_ha->pdev, i),
 908                                         &(pm8001_ha->irq_vector[i]));
 909                         }
 910                         pci_free_irq_vectors(pm8001_ha->pdev);
 911                         break;
 912                 }
 913         }
 914 
 915         return rc;
 916 }
 917 #endif
 918 
 919 /**
 920  * pm8001_request_irq - register interrupt
 921  * @chip_info: our ha struct.
 922  */
 923 static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha)
 924 {
 925         struct pci_dev *pdev;
 926         int rc;
 927 
 928         pdev = pm8001_ha->pdev;
 929 
 930 #ifdef PM8001_USE_MSIX
 931         if (pdev->msix_cap && pci_msi_enabled())
 932                 return pm8001_setup_msix(pm8001_ha);
 933         else {
 934                 PM8001_INIT_DBG(pm8001_ha,
 935                         pm8001_printk("MSIX not supported!!!\n"));
 936                 goto intx;
 937         }
 938 #endif
 939 
 940 intx:
 941         /* initialize the INT-X interrupt */
 942         pm8001_ha->irq_vector[0].irq_id = 0;
 943         pm8001_ha->irq_vector[0].drv_inst = pm8001_ha;
 944         rc = request_irq(pdev->irq, pm8001_interrupt_handler_intx, IRQF_SHARED,
 945                 DRV_NAME, SHOST_TO_SAS_HA(pm8001_ha->shost));
 946         return rc;
 947 }
 948 
 949 /**
 950  * pm8001_pci_probe - probe supported device
 951  * @pdev: pci device which kernel has been prepared for.
 952  * @ent: pci device id
 953  *
 954  * This function is the main initialization function, when register a new
 955  * pci driver it is invoked, all struct an hardware initilization should be done
 956  * here, also, register interrupt
 957  */
 958 static int pm8001_pci_probe(struct pci_dev *pdev,
 959                             const struct pci_device_id *ent)
 960 {
 961         unsigned int rc;
 962         u32     pci_reg;
 963         u8      i = 0;
 964         struct pm8001_hba_info *pm8001_ha;
 965         struct Scsi_Host *shost = NULL;
 966         const struct pm8001_chip_info *chip;
 967 
 968         dev_printk(KERN_INFO, &pdev->dev,
 969                 "pm80xx: driver version %s\n", DRV_VERSION);
 970         rc = pci_enable_device(pdev);
 971         if (rc)
 972                 goto err_out_enable;
 973         pci_set_master(pdev);
 974         /*
 975          * Enable pci slot busmaster by setting pci command register.
 976          * This is required by FW for Cyclone card.
 977          */
 978 
 979         pci_read_config_dword(pdev, PCI_COMMAND, &pci_reg);
 980         pci_reg |= 0x157;
 981         pci_write_config_dword(pdev, PCI_COMMAND, pci_reg);
 982         rc = pci_request_regions(pdev, DRV_NAME);
 983         if (rc)
 984                 goto err_out_disable;
 985         rc = pci_go_44(pdev);
 986         if (rc)
 987                 goto err_out_regions;
 988 
 989         shost = scsi_host_alloc(&pm8001_sht, sizeof(void *));
 990         if (!shost) {
 991                 rc = -ENOMEM;
 992                 goto err_out_regions;
 993         }
 994         chip = &pm8001_chips[ent->driver_data];
 995         SHOST_TO_SAS_HA(shost) =
 996                 kzalloc(sizeof(struct sas_ha_struct), GFP_KERNEL);
 997         if (!SHOST_TO_SAS_HA(shost)) {
 998                 rc = -ENOMEM;
 999                 goto err_out_free_host;
1000         }
1001 
1002         rc = pm8001_prep_sas_ha_init(shost, chip);
1003         if (rc) {
1004                 rc = -ENOMEM;
1005                 goto err_out_free;
1006         }
1007         pci_set_drvdata(pdev, SHOST_TO_SAS_HA(shost));
1008         /* ent->driver variable is used to differentiate between controllers */
1009         pm8001_ha = pm8001_pci_alloc(pdev, ent, shost);
1010         if (!pm8001_ha) {
1011                 rc = -ENOMEM;
1012                 goto err_out_free;
1013         }
1014         list_add_tail(&pm8001_ha->list, &hba_list);
1015         PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha);
1016         rc = PM8001_CHIP_DISP->chip_init(pm8001_ha);
1017         if (rc) {
1018                 PM8001_FAIL_DBG(pm8001_ha, pm8001_printk(
1019                         "chip_init failed [ret: %d]\n", rc));
1020                 goto err_out_ha_free;
1021         }
1022 
1023         rc = scsi_add_host(shost, &pdev->dev);
1024         if (rc)
1025                 goto err_out_ha_free;
1026         rc = pm8001_request_irq(pm8001_ha);
1027         if (rc) {
1028                 PM8001_FAIL_DBG(pm8001_ha, pm8001_printk(
1029                         "pm8001_request_irq failed [ret: %d]\n", rc));
1030                 goto err_out_shost;
1031         }
1032 
1033         PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0);
1034         if (pm8001_ha->chip_id != chip_8001) {
1035                 for (i = 1; i < pm8001_ha->number_of_intr; i++)
1036                         PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, i);
1037                 /* setup thermal configuration. */
1038                 pm80xx_set_thermal_config(pm8001_ha);
1039         }
1040 
1041         pm8001_init_sas_add(pm8001_ha);
1042         /* phy setting support for motherboard controller */
1043         if (pm8001_configure_phy_settings(pm8001_ha))
1044                 goto err_out_shost;
1045 
1046         pm8001_post_sas_ha_init(shost, chip);
1047         rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
1048         if (rc)
1049                 goto err_out_shost;
1050         scsi_scan_host(pm8001_ha->shost);
1051         pm8001_ha->flags = PM8001F_RUN_TIME;
1052         return 0;
1053 
1054 err_out_shost:
1055         scsi_remove_host(pm8001_ha->shost);
1056 err_out_ha_free:
1057         pm8001_free(pm8001_ha);
1058 err_out_free:
1059         kfree(SHOST_TO_SAS_HA(shost));
1060 err_out_free_host:
1061         scsi_host_put(shost);
1062 err_out_regions:
1063         pci_release_regions(pdev);
1064 err_out_disable:
1065         pci_disable_device(pdev);
1066 err_out_enable:
1067         return rc;
1068 }
1069 
1070 static void pm8001_pci_remove(struct pci_dev *pdev)
1071 {
1072         struct sas_ha_struct *sha = pci_get_drvdata(pdev);
1073         struct pm8001_hba_info *pm8001_ha;
1074         int i, j;
1075         pm8001_ha = sha->lldd_ha;
1076         sas_unregister_ha(sha);
1077         sas_remove_host(pm8001_ha->shost);
1078         list_del(&pm8001_ha->list);
1079         PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF);
1080         PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha);
1081 
1082 #ifdef PM8001_USE_MSIX
1083         for (i = 0; i < pm8001_ha->number_of_intr; i++)
1084                 synchronize_irq(pci_irq_vector(pdev, i));
1085         for (i = 0; i < pm8001_ha->number_of_intr; i++)
1086                 free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]);
1087         pci_free_irq_vectors(pdev);
1088 #else
1089         free_irq(pm8001_ha->irq, sha);
1090 #endif
1091 #ifdef PM8001_USE_TASKLET
1092         /* For non-msix and msix interrupts */
1093         if ((!pdev->msix_cap || !pci_msi_enabled()) ||
1094             (pm8001_ha->chip_id == chip_8001))
1095                 tasklet_kill(&pm8001_ha->tasklet[0]);
1096         else
1097                 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
1098                         tasklet_kill(&pm8001_ha->tasklet[j]);
1099 #endif
1100         scsi_host_put(pm8001_ha->shost);
1101         pm8001_free(pm8001_ha);
1102         kfree(sha->sas_phy);
1103         kfree(sha->sas_port);
1104         kfree(sha);
1105         pci_release_regions(pdev);
1106         pci_disable_device(pdev);
1107 }
1108 
1109 /**
1110  * pm8001_pci_suspend - power management suspend main entry point
1111  * @pdev: PCI device struct
1112  * @state: PM state change to (usually PCI_D3)
1113  *
1114  * Returns 0 success, anything else error.
1115  */
1116 static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state)
1117 {
1118         struct sas_ha_struct *sha = pci_get_drvdata(pdev);
1119         struct pm8001_hba_info *pm8001_ha;
1120         int  i, j;
1121         u32 device_state;
1122         pm8001_ha = sha->lldd_ha;
1123         sas_suspend_ha(sha);
1124         flush_workqueue(pm8001_wq);
1125         scsi_block_requests(pm8001_ha->shost);
1126         if (!pdev->pm_cap) {
1127                 dev_err(&pdev->dev, " PCI PM not supported\n");
1128                 return -ENODEV;
1129         }
1130         PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF);
1131         PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha);
1132 #ifdef PM8001_USE_MSIX
1133         for (i = 0; i < pm8001_ha->number_of_intr; i++)
1134                 synchronize_irq(pci_irq_vector(pdev, i));
1135         for (i = 0; i < pm8001_ha->number_of_intr; i++)
1136                 free_irq(pci_irq_vector(pdev, i), &pm8001_ha->irq_vector[i]);
1137         pci_free_irq_vectors(pdev);
1138 #else
1139         free_irq(pm8001_ha->irq, sha);
1140 #endif
1141 #ifdef PM8001_USE_TASKLET
1142         /* For non-msix and msix interrupts */
1143         if ((!pdev->msix_cap || !pci_msi_enabled()) ||
1144             (pm8001_ha->chip_id == chip_8001))
1145                 tasklet_kill(&pm8001_ha->tasklet[0]);
1146         else
1147                 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
1148                         tasklet_kill(&pm8001_ha->tasklet[j]);
1149 #endif
1150         device_state = pci_choose_state(pdev, state);
1151         pm8001_printk("pdev=0x%p, slot=%s, entering "
1152                       "operating state [D%d]\n", pdev,
1153                       pm8001_ha->name, device_state);
1154         pci_save_state(pdev);
1155         pci_disable_device(pdev);
1156         pci_set_power_state(pdev, device_state);
1157         return 0;
1158 }
1159 
1160 /**
1161  * pm8001_pci_resume - power management resume main entry point
1162  * @pdev: PCI device struct
1163  *
1164  * Returns 0 success, anything else error.
1165  */
1166 static int pm8001_pci_resume(struct pci_dev *pdev)
1167 {
1168         struct sas_ha_struct *sha = pci_get_drvdata(pdev);
1169         struct pm8001_hba_info *pm8001_ha;
1170         int rc;
1171         u8 i = 0, j;
1172         u32 device_state;
1173         DECLARE_COMPLETION_ONSTACK(completion);
1174         pm8001_ha = sha->lldd_ha;
1175         device_state = pdev->current_state;
1176 
1177         pm8001_printk("pdev=0x%p, slot=%s, resuming from previous "
1178                 "operating state [D%d]\n", pdev, pm8001_ha->name, device_state);
1179 
1180         pci_set_power_state(pdev, PCI_D0);
1181         pci_enable_wake(pdev, PCI_D0, 0);
1182         pci_restore_state(pdev);
1183         rc = pci_enable_device(pdev);
1184         if (rc) {
1185                 pm8001_printk("slot=%s Enable device failed during resume\n",
1186                               pm8001_ha->name);
1187                 goto err_out_enable;
1188         }
1189 
1190         pci_set_master(pdev);
1191         rc = pci_go_44(pdev);
1192         if (rc)
1193                 goto err_out_disable;
1194         sas_prep_resume_ha(sha);
1195         /* chip soft rst only for spc */
1196         if (pm8001_ha->chip_id == chip_8001) {
1197                 PM8001_CHIP_DISP->chip_soft_rst(pm8001_ha);
1198                 PM8001_INIT_DBG(pm8001_ha,
1199                         pm8001_printk("chip soft reset successful\n"));
1200         }
1201         rc = PM8001_CHIP_DISP->chip_init(pm8001_ha);
1202         if (rc)
1203                 goto err_out_disable;
1204 
1205         /* disable all the interrupt bits */
1206         PM8001_CHIP_DISP->interrupt_disable(pm8001_ha, 0xFF);
1207 
1208         rc = pm8001_request_irq(pm8001_ha);
1209         if (rc)
1210                 goto err_out_disable;
1211 #ifdef PM8001_USE_TASKLET
1212         /*  Tasklet for non msi-x interrupt handler */
1213         if ((!pdev->msix_cap || !pci_msi_enabled()) ||
1214             (pm8001_ha->chip_id == chip_8001))
1215                 tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
1216                         (unsigned long)&(pm8001_ha->irq_vector[0]));
1217         else
1218                 for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
1219                         tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet,
1220                                 (unsigned long)&(pm8001_ha->irq_vector[j]));
1221 #endif
1222         PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0);
1223         if (pm8001_ha->chip_id != chip_8001) {
1224                 for (i = 1; i < pm8001_ha->number_of_intr; i++)
1225                         PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, i);
1226         }
1227 
1228         /* Chip documentation for the 8070 and 8072 SPCv    */
1229         /* states that a 500ms minimum delay is required    */
1230         /* before issuing commands. Otherwise, the firmware */
1231         /* will enter an unrecoverable state.               */
1232 
1233         if (pm8001_ha->chip_id == chip_8070 ||
1234                 pm8001_ha->chip_id == chip_8072) {
1235                 mdelay(500);
1236         }
1237 
1238         /* Spin up the PHYs */
1239 
1240         pm8001_ha->flags = PM8001F_RUN_TIME;
1241         for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
1242                 pm8001_ha->phy[i].enable_completion = &completion;
1243                 PM8001_CHIP_DISP->phy_start_req(pm8001_ha, i);
1244                 wait_for_completion(&completion);
1245         }
1246         sas_resume_ha(sha);
1247         return 0;
1248 
1249 err_out_disable:
1250         scsi_remove_host(pm8001_ha->shost);
1251         pci_disable_device(pdev);
1252 err_out_enable:
1253         return rc;
1254 }
1255 
1256 /* update of pci device, vendor id and driver data with
1257  * unique value for each of the controller
1258  */
1259 static struct pci_device_id pm8001_pci_table[] = {
1260         { PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001 },
1261         { PCI_VDEVICE(PMC_Sierra, 0x8006), chip_8006 },
1262         { PCI_VDEVICE(ADAPTEC2, 0x8006), chip_8006 },
1263         { PCI_VDEVICE(ATTO, 0x0042), chip_8001 },
1264         /* Support for SPC/SPCv/SPCve controllers */
1265         { PCI_VDEVICE(ADAPTEC2, 0x8001), chip_8001 },
1266         { PCI_VDEVICE(PMC_Sierra, 0x8008), chip_8008 },
1267         { PCI_VDEVICE(ADAPTEC2, 0x8008), chip_8008 },
1268         { PCI_VDEVICE(PMC_Sierra, 0x8018), chip_8018 },
1269         { PCI_VDEVICE(ADAPTEC2, 0x8018), chip_8018 },
1270         { PCI_VDEVICE(PMC_Sierra, 0x8009), chip_8009 },
1271         { PCI_VDEVICE(ADAPTEC2, 0x8009), chip_8009 },
1272         { PCI_VDEVICE(PMC_Sierra, 0x8019), chip_8019 },
1273         { PCI_VDEVICE(ADAPTEC2, 0x8019), chip_8019 },
1274         { PCI_VDEVICE(PMC_Sierra, 0x8074), chip_8074 },
1275         { PCI_VDEVICE(ADAPTEC2, 0x8074), chip_8074 },
1276         { PCI_VDEVICE(PMC_Sierra, 0x8076), chip_8076 },
1277         { PCI_VDEVICE(ADAPTEC2, 0x8076), chip_8076 },
1278         { PCI_VDEVICE(PMC_Sierra, 0x8077), chip_8077 },
1279         { PCI_VDEVICE(ADAPTEC2, 0x8077), chip_8077 },
1280         { PCI_VENDOR_ID_ADAPTEC2, 0x8081,
1281                 PCI_VENDOR_ID_ADAPTEC2, 0x0400, 0, 0, chip_8001 },
1282         { PCI_VENDOR_ID_ADAPTEC2, 0x8081,
1283                 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8001 },
1284         { PCI_VENDOR_ID_ADAPTEC2, 0x8088,
1285                 PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8008 },
1286         { PCI_VENDOR_ID_ADAPTEC2, 0x8088,
1287                 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8008 },
1288         { PCI_VENDOR_ID_ADAPTEC2, 0x8089,
1289                 PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8009 },
1290         { PCI_VENDOR_ID_ADAPTEC2, 0x8089,
1291                 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8009 },
1292         { PCI_VENDOR_ID_ADAPTEC2, 0x8088,
1293                 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8018 },
1294         { PCI_VENDOR_ID_ADAPTEC2, 0x8088,
1295                 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8018 },
1296         { PCI_VENDOR_ID_ADAPTEC2, 0x8089,
1297                 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8019 },
1298         { PCI_VENDOR_ID_ADAPTEC2, 0x8089,
1299                 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8019 },
1300         { PCI_VENDOR_ID_ADAPTEC2, 0x8074,
1301                 PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8074 },
1302         { PCI_VENDOR_ID_ADAPTEC2, 0x8076,
1303                 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8076 },
1304         { PCI_VENDOR_ID_ADAPTEC2, 0x8077,
1305                 PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8077 },
1306         { PCI_VENDOR_ID_ADAPTEC2, 0x8074,
1307                 PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8074 },
1308         { PCI_VENDOR_ID_ADAPTEC2, 0x8076,
1309                 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8076 },
1310         { PCI_VENDOR_ID_ADAPTEC2, 0x8077,
1311                 PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8077 },
1312         { PCI_VENDOR_ID_ADAPTEC2, 0x8076,
1313                 PCI_VENDOR_ID_ADAPTEC2, 0x0808, 0, 0, chip_8076 },
1314         { PCI_VENDOR_ID_ADAPTEC2, 0x8077,
1315                 PCI_VENDOR_ID_ADAPTEC2, 0x0808, 0, 0, chip_8077 },
1316         { PCI_VENDOR_ID_ADAPTEC2, 0x8074,
1317                 PCI_VENDOR_ID_ADAPTEC2, 0x0404, 0, 0, chip_8074 },
1318         { PCI_VENDOR_ID_ATTO, 0x8070,
1319                 PCI_VENDOR_ID_ATTO, 0x0070, 0, 0, chip_8070 },
1320         { PCI_VENDOR_ID_ATTO, 0x8070,
1321                 PCI_VENDOR_ID_ATTO, 0x0071, 0, 0, chip_8070 },
1322         { PCI_VENDOR_ID_ATTO, 0x8072,
1323                 PCI_VENDOR_ID_ATTO, 0x0072, 0, 0, chip_8072 },
1324         { PCI_VENDOR_ID_ATTO, 0x8072,
1325                 PCI_VENDOR_ID_ATTO, 0x0073, 0, 0, chip_8072 },
1326         { PCI_VENDOR_ID_ATTO, 0x8070,
1327                 PCI_VENDOR_ID_ATTO, 0x0080, 0, 0, chip_8070 },
1328         { PCI_VENDOR_ID_ATTO, 0x8072,
1329                 PCI_VENDOR_ID_ATTO, 0x0081, 0, 0, chip_8072 },
1330         { PCI_VENDOR_ID_ATTO, 0x8072,
1331                 PCI_VENDOR_ID_ATTO, 0x0082, 0, 0, chip_8072 },
1332         {} /* terminate list */
1333 };
1334 
1335 static struct pci_driver pm8001_pci_driver = {
1336         .name           = DRV_NAME,
1337         .id_table       = pm8001_pci_table,
1338         .probe          = pm8001_pci_probe,
1339         .remove         = pm8001_pci_remove,
1340         .suspend        = pm8001_pci_suspend,
1341         .resume         = pm8001_pci_resume,
1342 };
1343 
1344 /**
1345  *      pm8001_init - initialize scsi transport template
1346  */
1347 static int __init pm8001_init(void)
1348 {
1349         int rc = -ENOMEM;
1350 
1351         pm8001_wq = alloc_workqueue("pm80xx", 0, 0);
1352         if (!pm8001_wq)
1353                 goto err;
1354 
1355         pm8001_id = 0;
1356         pm8001_stt = sas_domain_attach_transport(&pm8001_transport_ops);
1357         if (!pm8001_stt)
1358                 goto err_wq;
1359         rc = pci_register_driver(&pm8001_pci_driver);
1360         if (rc)
1361                 goto err_tp;
1362         return 0;
1363 
1364 err_tp:
1365         sas_release_transport(pm8001_stt);
1366 err_wq:
1367         destroy_workqueue(pm8001_wq);
1368 err:
1369         return rc;
1370 }
1371 
1372 static void __exit pm8001_exit(void)
1373 {
1374         pci_unregister_driver(&pm8001_pci_driver);
1375         sas_release_transport(pm8001_stt);
1376         destroy_workqueue(pm8001_wq);
1377 }
1378 
1379 module_init(pm8001_init);
1380 module_exit(pm8001_exit);
1381 
1382 MODULE_AUTHOR("Jack Wang <jack_wang@usish.com>");
1383 MODULE_AUTHOR("Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>");
1384 MODULE_AUTHOR("Sangeetha Gnanasekaran <Sangeetha.Gnanasekaran@pmcs.com>");
1385 MODULE_AUTHOR("Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>");
1386 MODULE_DESCRIPTION(
1387                 "PMC-Sierra PM8001/8006/8081/8088/8089/8074/8076/8077/8070/8072 "
1388                 "SAS/SATA controller driver");
1389 MODULE_VERSION(DRV_VERSION);
1390 MODULE_LICENSE("GPL");
1391 MODULE_DEVICE_TABLE(pci, pm8001_pci_table);
1392
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/scsi/pm8001/pm8001_init.c

DEFINITIONS
