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   1 /*
   2  *  linux/drivers/message/fusion/mptsas.c
   3  *      For use with LSI Logic PCI chip/adapter(s)
   4  *      running LSI Logic Fusion MPT (Message Passing Technology) firmware.
   5  *
   6  *  Copyright (c) 1999-2005 LSI Logic Corporation
   7  *  (mailto:mpt_linux_developer@lsil.com)
   8  *  Copyright (c) 2005-2006 Dell
   9  */
  10 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  11 /*
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; version 2 of the License.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     NO WARRANTY
  22     THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  23     CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  24     LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  25     MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  26     solely responsible for determining the appropriateness of using and
  27     distributing the Program and assumes all risks associated with its
  28     exercise of rights under this Agreement, including but not limited to
  29     the risks and costs of program errors, damage to or loss of data,
  30     programs or equipment, and unavailability or interruption of operations.
  31
  32     DISCLAIMER OF LIABILITY
  33     NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  34     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35     DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  36     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  37     TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  38     USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  39     HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  40
  41     You should have received a copy of the GNU General Public License
  42     along with this program; if not, write to the Free Software
  43     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  44 */
  45 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  46
  47 #include <linux/module.h>
  48 #include <linux/kernel.h>
  49 #include <linux/init.h>
  50 #include <linux/errno.h>
  51 #include <linux/sched.h>
  52 #include <linux/workqueue.h>
  53
  54 #include <scsi/scsi_cmnd.h>
  55 #include <scsi/scsi_device.h>
  56 #include <scsi/scsi_host.h>
  57 #include <scsi/scsi_transport_sas.h>
  58
  59 #include "mptbase.h"
  60 #include "mptscsih.h"
  61
  62
  63 #define my_NAME         "Fusion MPT SAS Host driver"
  64 #define my_VERSION      MPT_LINUX_VERSION_COMMON
  65 #define MYNAM           "mptsas"
  66
  67 MODULE_AUTHOR(MODULEAUTHOR);
  68 MODULE_DESCRIPTION(my_NAME);
  69 MODULE_LICENSE("GPL");
  70
  71 static int mpt_pq_filter;
  72 module_param(mpt_pq_filter, int, 0);
  73 MODULE_PARM_DESC(mpt_pq_filter,
  74                 "Enable peripheral qualifier filter: enable=1  "
  75                 "(default=0)");
  76
  77 static int mpt_pt_clear;
  78 module_param(mpt_pt_clear, int, 0);
  79 MODULE_PARM_DESC(mpt_pt_clear,
  80                 "Clear persistency table: enable=1  "
  81                 "(default=MPTSCSIH_PT_CLEAR=0)");
  82
  83 static int      mptsasDoneCtx = -1;
  84 static int      mptsasTaskCtx = -1;
  85 static int      mptsasInternalCtx = -1; /* Used only for internal commands */
  86 static int      mptsasMgmtCtx = -1;
  87
  88
  89 enum mptsas_hotplug_action {
  90         MPTSAS_ADD_DEVICE,
  91         MPTSAS_DEL_DEVICE,
  92         MPTSAS_ADD_RAID,
  93         MPTSAS_DEL_RAID,
  94 };
  95
  96 struct mptsas_hotplug_event {
  97         struct work_struct      work;
  98         MPT_ADAPTER             *ioc;
  99         enum mptsas_hotplug_action event_type;
 100         u64                     sas_address;
 101         u32                     channel;
 102         u32                     id;
 103         u32                     device_info;
 104         u16                     handle;
 105         u16                     parent_handle;
 106         u8                      phy_id;
 107         u8                      phys_disk_num;
 108         u8                      phys_disk_num_valid;
 109 };
 110
 111 struct mptsas_discovery_event {
 112         struct work_struct      work;
 113         MPT_ADAPTER             *ioc;
 114 };
 115
 116 /*
 117  * SAS topology structures
 118  *
 119  * The MPT Fusion firmware interface spreads information about the
 120  * SAS topology over many manufacture pages, thus we need some data
 121  * structure to collect it and process it for the SAS transport class.
 122  */
 123
 124 struct mptsas_devinfo {
 125         u16     handle;         /* unique id to address this device */
 126         u16     handle_parent;  /* unique id to address parent device */
 127         u16     handle_enclosure; /* enclosure identifier of the enclosure */
 128         u16     slot;           /* physical slot in enclosure */
 129         u8      phy_id;         /* phy number of parent device */
 130         u8      port_id;        /* sas physical port this device
 131                                    is assoc'd with */
 132         u8      id;             /* logical target id of this device */
 133         u8      channel;        /* logical bus number of this device */
 134         u64     sas_address;    /* WWN of this device,
 135                                    SATA is assigned by HBA,expander */
 136         u32     device_info;    /* bitfield detailed info about this device */
 137 };
 138
 139 struct mptsas_phyinfo {
 140         u8      phy_id;                 /* phy index */
 141         u8      port_id;                /* port number this phy is part of */
 142         u8      negotiated_link_rate;   /* nego'd link rate for this phy */
 143         u8      hw_link_rate;           /* hardware max/min phys link rate */
 144         u8      programmed_link_rate;   /* programmed max/min phy link rate */
 145         struct mptsas_devinfo identify; /* point to phy device info */
 146         struct mptsas_devinfo attached; /* point to attached device info */
 147         struct sas_phy *phy;
 148         struct sas_rphy *rphy;
 149         struct scsi_target *starget;
 150 };
 151
 152 struct mptsas_portinfo {
 153         struct list_head list;
 154         u16             handle;         /* unique id to address this */
 155         u8              num_phys;       /* number of phys */
 156         struct mptsas_phyinfo *phy_info;
 157 };
 158
 159 struct mptsas_enclosure {
 160         u64     enclosure_logical_id;   /* The WWN for the enclosure */
 161         u16     enclosure_handle;       /* unique id to address this */
 162         u16     flags;                  /* details enclosure management */
 163         u16     num_slot;               /* num slots */
 164         u16     start_slot;             /* first slot */
 165         u8      start_id;               /* starting logical target id */
 166         u8      start_channel;          /* starting logical channel id */
 167         u8      sep_id;                 /* SEP device logical target id */
 168         u8      sep_channel;            /* SEP channel logical channel id */
 169 };
 170
 171 #ifdef SASDEBUG
 172 static void mptsas_print_phy_data(MPI_SAS_IO_UNIT0_PHY_DATA *phy_data)
 173 {
 174         printk("---- IO UNIT PAGE 0 ------------\n");
 175         printk("Handle=0x%X\n",
 176                 le16_to_cpu(phy_data->AttachedDeviceHandle));
 177         printk("Controller Handle=0x%X\n",
 178                 le16_to_cpu(phy_data->ControllerDevHandle));
 179         printk("Port=0x%X\n", phy_data->Port);
 180         printk("Port Flags=0x%X\n", phy_data->PortFlags);
 181         printk("PHY Flags=0x%X\n", phy_data->PhyFlags);
 182         printk("Negotiated Link Rate=0x%X\n", phy_data->NegotiatedLinkRate);
 183         printk("Controller PHY Device Info=0x%X\n",
 184                 le32_to_cpu(phy_data->ControllerPhyDeviceInfo));
 185         printk("DiscoveryStatus=0x%X\n",
 186                 le32_to_cpu(phy_data->DiscoveryStatus));
 187         printk("\n");
 188 }
 189
 190 static void mptsas_print_phy_pg0(SasPhyPage0_t *pg0)
 191 {
 192         __le64 sas_address;
 193
 194         memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64));
 195
 196         printk("---- SAS PHY PAGE 0 ------------\n");
 197         printk("Attached Device Handle=0x%X\n",
 198                         le16_to_cpu(pg0->AttachedDevHandle));
 199         printk("SAS Address=0x%llX\n",
 200                         (unsigned long long)le64_to_cpu(sas_address));
 201         printk("Attached PHY Identifier=0x%X\n", pg0->AttachedPhyIdentifier);
 202         printk("Attached Device Info=0x%X\n",
 203                         le32_to_cpu(pg0->AttachedDeviceInfo));
 204         printk("Programmed Link Rate=0x%X\n", pg0->ProgrammedLinkRate);
 205         printk("Change Count=0x%X\n", pg0->ChangeCount);
 206         printk("PHY Info=0x%X\n", le32_to_cpu(pg0->PhyInfo));
 207         printk("\n");
 208 }
 209
 210 static void mptsas_print_phy_pg1(SasPhyPage1_t *pg1)
 211 {
 212         printk("---- SAS PHY PAGE 1 ------------\n");
 213         printk("Invalid Dword Count=0x%x\n", pg1->InvalidDwordCount);
 214         printk("Running Disparity Error Count=0x%x\n",
 215                         pg1->RunningDisparityErrorCount);
 216         printk("Loss Dword Synch Count=0x%x\n", pg1->LossDwordSynchCount);
 217         printk("PHY Reset Problem Count=0x%x\n", pg1->PhyResetProblemCount);
 218         printk("\n");
 219 }
 220
 221 static void mptsas_print_device_pg0(SasDevicePage0_t *pg0)
 222 {
 223         __le64 sas_address;
 224
 225         memcpy(&sas_address, &pg0->SASAddress, sizeof(__le64));
 226
 227         printk("---- SAS DEVICE PAGE 0 ---------\n");
 228         printk("Handle=0x%X\n" ,le16_to_cpu(pg0->DevHandle));
 229         printk("Parent Handle=0x%X\n" ,le16_to_cpu(pg0->ParentDevHandle));
 230         printk("Enclosure Handle=0x%X\n", le16_to_cpu(pg0->EnclosureHandle));
 231         printk("Slot=0x%X\n", le16_to_cpu(pg0->Slot));
 232         printk("SAS Address=0x%llX\n", le64_to_cpu(sas_address));
 233         printk("Target ID=0x%X\n", pg0->TargetID);
 234         printk("Bus=0x%X\n", pg0->Bus);
 235         /* The PhyNum field specifies the PHY number of the parent
 236          * device this device is linked to
 237          */
 238         printk("Parent Phy Num=0x%X\n", pg0->PhyNum);
 239         printk("Access Status=0x%X\n", le16_to_cpu(pg0->AccessStatus));
 240         printk("Device Info=0x%X\n", le32_to_cpu(pg0->DeviceInfo));
 241         printk("Flags=0x%X\n", le16_to_cpu(pg0->Flags));
 242         printk("Physical Port=0x%X\n", pg0->PhysicalPort);
 243         printk("\n");
 244 }
 245
 246 static void mptsas_print_expander_pg1(SasExpanderPage1_t *pg1)
 247 {
 248         printk("---- SAS EXPANDER PAGE 1 ------------\n");
 249
 250         printk("Physical Port=0x%X\n", pg1->PhysicalPort);
 251         printk("PHY Identifier=0x%X\n", pg1->PhyIdentifier);
 252         printk("Negotiated Link Rate=0x%X\n", pg1->NegotiatedLinkRate);
 253         printk("Programmed Link Rate=0x%X\n", pg1->ProgrammedLinkRate);
 254         printk("Hardware Link Rate=0x%X\n", pg1->HwLinkRate);
 255         printk("Owner Device Handle=0x%X\n",
 256                         le16_to_cpu(pg1->OwnerDevHandle));
 257         printk("Attached Device Handle=0x%X\n",
 258                         le16_to_cpu(pg1->AttachedDevHandle));
 259 }
 260 #else
 261 #define mptsas_print_phy_data(phy_data)         do { } while (0)
 262 #define mptsas_print_phy_pg0(pg0)               do { } while (0)
 263 #define mptsas_print_phy_pg1(pg1)               do { } while (0)
 264 #define mptsas_print_device_pg0(pg0)            do { } while (0)
 265 #define mptsas_print_expander_pg1(pg1)          do { } while (0)
 266 #endif
 267
 268 static inline MPT_ADAPTER *phy_to_ioc(struct sas_phy *phy)
 269 {
 270         struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
 271         return ((MPT_SCSI_HOST *)shost->hostdata)->ioc;
 272 }
 273
 274 static inline MPT_ADAPTER *rphy_to_ioc(struct sas_rphy *rphy)
 275 {
 276         struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
 277         return ((MPT_SCSI_HOST *)shost->hostdata)->ioc;
 278 }
 279
 280 /*
 281  * mptsas_find_portinfo_by_handle
 282  *
 283  * This function should be called with the sas_topology_mutex already held
 284  */
 285 static struct mptsas_portinfo *
 286 mptsas_find_portinfo_by_handle(MPT_ADAPTER *ioc, u16 handle)
 287 {
 288         struct mptsas_portinfo *port_info, *rc=NULL;
 289         int i;
 290
 291         list_for_each_entry(port_info, &ioc->sas_topology, list)
 292                 for (i = 0; i < port_info->num_phys; i++)
 293                         if (port_info->phy_info[i].identify.handle == handle) {
 294                                 rc = port_info;
 295                                 goto out;
 296                         }
 297  out:
 298         return rc;
 299 }
 300
 301 static int
 302 mptsas_sas_enclosure_pg0(MPT_ADAPTER *ioc, struct mptsas_enclosure *enclosure,
 303                 u32 form, u32 form_specific)
 304 {
 305         ConfigExtendedPageHeader_t hdr;
 306         CONFIGPARMS cfg;
 307         SasEnclosurePage0_t *buffer;
 308         dma_addr_t dma_handle;
 309         int error;
 310         __le64 le_identifier;
 311
 312         memset(&hdr, 0, sizeof(hdr));
 313         hdr.PageVersion = MPI_SASENCLOSURE0_PAGEVERSION;
 314         hdr.PageNumber = 0;
 315         hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
 316         hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_ENCLOSURE;
 317
 318         cfg.cfghdr.ehdr = &hdr;
 319         cfg.physAddr = -1;
 320         cfg.pageAddr = form + form_specific;
 321         cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
 322         cfg.dir = 0;    /* read */
 323         cfg.timeout = 10;
 324
 325         error = mpt_config(ioc, &cfg);
 326         if (error)
 327                 goto out;
 328         if (!hdr.ExtPageLength) {
 329                 error = -ENXIO;
 330                 goto out;
 331         }
 332
 333         buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 334                         &dma_handle);
 335         if (!buffer) {
 336                 error = -ENOMEM;
 337                 goto out;
 338         }
 339
 340         cfg.physAddr = dma_handle;
 341         cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
 342
 343         error = mpt_config(ioc, &cfg);
 344         if (error)
 345                 goto out_free_consistent;
 346
 347         /* save config data */
 348         memcpy(&le_identifier, &buffer->EnclosureLogicalID, sizeof(__le64));
 349         enclosure->enclosure_logical_id = le64_to_cpu(le_identifier);
 350         enclosure->enclosure_handle = le16_to_cpu(buffer->EnclosureHandle);
 351         enclosure->flags = le16_to_cpu(buffer->Flags);
 352         enclosure->num_slot = le16_to_cpu(buffer->NumSlots);
 353         enclosure->start_slot = le16_to_cpu(buffer->StartSlot);
 354         enclosure->start_id = buffer->StartTargetID;
 355         enclosure->start_channel = buffer->StartBus;
 356         enclosure->sep_id = buffer->SEPTargetID;
 357         enclosure->sep_channel = buffer->SEPBus;
 358
 359  out_free_consistent:
 360         pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 361                             buffer, dma_handle);
 362  out:
 363         return error;
 364 }
 365
 366 static int
 367 mptsas_slave_configure(struct scsi_device *sdev)
 368 {
 369         sas_read_port_mode_page(sdev);
 370
 371         return mptscsih_slave_configure(sdev);
 372 }
 373
 374 /*
 375  * This is pretty ugly.  We will be able to seriously clean it up
 376  * once the DV code in mptscsih goes away and we can properly
 377  * implement ->target_alloc.
 378  */
 379 static int
 380 mptsas_slave_alloc(struct scsi_device *sdev)
 381 {
 382         struct Scsi_Host        *host = sdev->host;
 383         MPT_SCSI_HOST           *hd = (MPT_SCSI_HOST *)host->hostdata;
 384         struct sas_rphy         *rphy;
 385         struct mptsas_portinfo  *p;
 386         VirtTarget              *vtarget;
 387         VirtDevice              *vdev;
 388         struct scsi_target      *starget;
 389         u32                     target_id;
 390         int i;
 391
 392         vdev = kzalloc(sizeof(VirtDevice), GFP_KERNEL);
 393         if (!vdev) {
 394                 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n",
 395                                 hd->ioc->name, sizeof(VirtDevice));
 396                 return -ENOMEM;
 397         }
 398         sdev->hostdata = vdev;
 399         starget = scsi_target(sdev);
 400         vtarget = starget->hostdata;
 401         vtarget->ioc_id = hd->ioc->id;
 402         vdev->vtarget = vtarget;
 403         if (vtarget->num_luns == 0) {
 404                 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES|MPT_TARGET_FLAGS_VALID_INQUIRY;
 405                 hd->Targets[sdev->id] = vtarget;
 406         }
 407
 408         /*
 409           RAID volumes placed beyond the last expected port.
 410         */
 411         if (sdev->channel == hd->ioc->num_ports) {
 412                 target_id = sdev->id;
 413                 vtarget->bus_id = 0;
 414                 vdev->lun = 0;
 415                 goto out;
 416         }
 417
 418         rphy = dev_to_rphy(sdev->sdev_target->dev.parent);
 419         mutex_lock(&hd->ioc->sas_topology_mutex);
 420         list_for_each_entry(p, &hd->ioc->sas_topology, list) {
 421                 for (i = 0; i < p->num_phys; i++) {
 422                         if (p->phy_info[i].attached.sas_address ==
 423                                         rphy->identify.sas_address) {
 424                                 target_id = p->phy_info[i].attached.id;
 425                                 vtarget->bus_id = p->phy_info[i].attached.channel;
 426                                 vdev->lun = sdev->lun;
 427                                 p->phy_info[i].starget = sdev->sdev_target;
 428                                 /*
 429                                  * Exposing hidden disk (RAID)
 430                                  */
 431                                 if (mptscsih_is_phys_disk(hd->ioc, target_id)) {
 432                                         target_id = mptscsih_raid_id_to_num(hd,
 433                                                         target_id);
 434                                         vdev->vtarget->tflags |=
 435                                             MPT_TARGET_FLAGS_RAID_COMPONENT;
 436                                         sdev->no_uld_attach = 1;
 437                                 }
 438                                 mutex_unlock(&hd->ioc->sas_topology_mutex);
 439                                 goto out;
 440                         }
 441                 }
 442         }
 443         mutex_unlock(&hd->ioc->sas_topology_mutex);
 444
 445         kfree(vdev);
 446         return -ENXIO;
 447
 448  out:
 449         vtarget->target_id = target_id;
 450         vtarget->num_luns++;
 451         return 0;
 452 }
 453
 454 static void
 455 mptsas_slave_destroy(struct scsi_device *sdev)
 456 {
 457         struct Scsi_Host *host = sdev->host;
 458         MPT_SCSI_HOST *hd = (MPT_SCSI_HOST *)host->hostdata;
 459         VirtDevice *vdev;
 460
 461         /*
 462          * Issue target reset to flush firmware outstanding commands.
 463          */
 464         vdev = sdev->hostdata;
 465         if (vdev->configured_lun){
 466                 if (mptscsih_TMHandler(hd,
 467                      MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
 468                      vdev->vtarget->bus_id,
 469                      vdev->vtarget->target_id,
 470                      0, 0, 5 /* 5 second timeout */)
 471                      < 0){
 472
 473                         /* The TM request failed!
 474                          * Fatal error case.
 475                          */
 476                         printk(MYIOC_s_WARN_FMT
 477                        "Error processing TaskMgmt id=%d TARGET_RESET\n",
 478                                 hd->ioc->name,
 479                                 vdev->vtarget->target_id);
 480
 481                         hd->tmPending = 0;
 482                         hd->tmState = TM_STATE_NONE;
 483                 }
 484         }
 485         mptscsih_slave_destroy(sdev);
 486 }
 487
 488 static struct scsi_host_template mptsas_driver_template = {
 489         .module                         = THIS_MODULE,
 490         .proc_name                      = "mptsas",
 491         .proc_info                      = mptscsih_proc_info,
 492         .name                           = "MPT SPI Host",
 493         .info                           = mptscsih_info,
 494         .queuecommand                   = mptscsih_qcmd,
 495         .target_alloc                   = mptscsih_target_alloc,
 496         .slave_alloc                    = mptsas_slave_alloc,
 497         .slave_configure                = mptsas_slave_configure,
 498         .target_destroy                 = mptscsih_target_destroy,
 499         .slave_destroy                  = mptsas_slave_destroy,
 500         .change_queue_depth             = mptscsih_change_queue_depth,
 501         .eh_abort_handler               = mptscsih_abort,
 502         .eh_device_reset_handler        = mptscsih_dev_reset,
 503         .eh_bus_reset_handler           = mptscsih_bus_reset,
 504         .eh_host_reset_handler          = mptscsih_host_reset,
 505         .bios_param                     = mptscsih_bios_param,
 506         .can_queue                      = MPT_FC_CAN_QUEUE,
 507         .this_id                        = -1,
 508         .sg_tablesize                   = MPT_SCSI_SG_DEPTH,
 509         .max_sectors                    = 8192,
 510         .cmd_per_lun                    = 7,
 511         .use_clustering                 = ENABLE_CLUSTERING,
 512 };
 513
 514 static int mptsas_get_linkerrors(struct sas_phy *phy)
 515 {
 516         MPT_ADAPTER *ioc = phy_to_ioc(phy);
 517         ConfigExtendedPageHeader_t hdr;
 518         CONFIGPARMS cfg;
 519         SasPhyPage1_t *buffer;
 520         dma_addr_t dma_handle;
 521         int error;
 522
 523         hdr.PageVersion = MPI_SASPHY1_PAGEVERSION;
 524         hdr.ExtPageLength = 0;
 525         hdr.PageNumber = 1 /* page number 1*/;
 526         hdr.Reserved1 = 0;
 527         hdr.Reserved2 = 0;
 528         hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
 529         hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_PHY;
 530
 531         cfg.cfghdr.ehdr = &hdr;
 532         cfg.physAddr = -1;
 533         cfg.pageAddr = phy->identify.phy_identifier;
 534         cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
 535         cfg.dir = 0;    /* read */
 536         cfg.timeout = 10;
 537
 538         error = mpt_config(ioc, &cfg);
 539         if (error)
 540                 return error;
 541         if (!hdr.ExtPageLength)
 542                 return -ENXIO;
 543
 544         buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 545                                       &dma_handle);
 546         if (!buffer)
 547                 return -ENOMEM;
 548
 549         cfg.physAddr = dma_handle;
 550         cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
 551
 552         error = mpt_config(ioc, &cfg);
 553         if (error)
 554                 goto out_free_consistent;
 555
 556         mptsas_print_phy_pg1(buffer);
 557
 558         phy->invalid_dword_count = le32_to_cpu(buffer->InvalidDwordCount);
 559         phy->running_disparity_error_count =
 560                 le32_to_cpu(buffer->RunningDisparityErrorCount);
 561         phy->loss_of_dword_sync_count =
 562                 le32_to_cpu(buffer->LossDwordSynchCount);
 563         phy->phy_reset_problem_count =
 564                 le32_to_cpu(buffer->PhyResetProblemCount);
 565
 566  out_free_consistent:
 567         pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 568                             buffer, dma_handle);
 569         return error;
 570 }
 571
 572 static int mptsas_mgmt_done(MPT_ADAPTER *ioc, MPT_FRAME_HDR *req,
 573                 MPT_FRAME_HDR *reply)
 574 {
 575         ioc->sas_mgmt.status |= MPT_SAS_MGMT_STATUS_COMMAND_GOOD;
 576         if (reply != NULL) {
 577                 ioc->sas_mgmt.status |= MPT_SAS_MGMT_STATUS_RF_VALID;
 578                 memcpy(ioc->sas_mgmt.reply, reply,
 579                     min(ioc->reply_sz, 4 * reply->u.reply.MsgLength));
 580         }
 581         complete(&ioc->sas_mgmt.done);
 582         return 1;
 583 }
 584
 585 static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset)
 586 {
 587         MPT_ADAPTER *ioc = phy_to_ioc(phy);
 588         SasIoUnitControlRequest_t *req;
 589         SasIoUnitControlReply_t *reply;
 590         MPT_FRAME_HDR *mf;
 591         MPIHeader_t *hdr;
 592         unsigned long timeleft;
 593         int error = -ERESTARTSYS;
 594
 595         /* not implemented for expanders */
 596         if (phy->identify.target_port_protocols & SAS_PROTOCOL_SMP)
 597                 return -ENXIO;
 598
 599         if (mutex_lock_interruptible(&ioc->sas_mgmt.mutex))
 600                 goto out;
 601
 602         mf = mpt_get_msg_frame(mptsasMgmtCtx, ioc);
 603         if (!mf) {
 604                 error = -ENOMEM;
 605                 goto out_unlock;
 606         }
 607
 608         hdr = (MPIHeader_t *) mf;
 609         req = (SasIoUnitControlRequest_t *)mf;
 610         memset(req, 0, sizeof(SasIoUnitControlRequest_t));
 611         req->Function = MPI_FUNCTION_SAS_IO_UNIT_CONTROL;
 612         req->MsgContext = hdr->MsgContext;
 613         req->Operation = hard_reset ?
 614                 MPI_SAS_OP_PHY_HARD_RESET : MPI_SAS_OP_PHY_LINK_RESET;
 615         req->PhyNum = phy->identify.phy_identifier;
 616
 617         mpt_put_msg_frame(mptsasMgmtCtx, ioc, mf);
 618
 619         timeleft = wait_for_completion_timeout(&ioc->sas_mgmt.done,
 620                         10 * HZ);
 621         if (!timeleft) {
 622                 /* On timeout reset the board */
 623                 mpt_free_msg_frame(ioc, mf);
 624                 mpt_HardResetHandler(ioc, CAN_SLEEP);
 625                 error = -ETIMEDOUT;
 626                 goto out_unlock;
 627         }
 628
 629         /* a reply frame is expected */
 630         if ((ioc->sas_mgmt.status &
 631             MPT_IOCTL_STATUS_RF_VALID) == 0) {
 632                 error = -ENXIO;
 633                 goto out_unlock;
 634         }
 635
 636         /* process the completed Reply Message Frame */
 637         reply = (SasIoUnitControlReply_t *)ioc->sas_mgmt.reply;
 638         if (reply->IOCStatus != MPI_IOCSTATUS_SUCCESS) {
 639                 printk("%s: IOCStatus=0x%X IOCLogInfo=0x%X\n",
 640                     __FUNCTION__,
 641                     reply->IOCStatus,
 642                     reply->IOCLogInfo);
 643                 error = -ENXIO;
 644                 goto out_unlock;
 645         }
 646
 647         error = 0;
 648
 649  out_unlock:
 650         mutex_unlock(&ioc->sas_mgmt.mutex);
 651  out:
 652         return error;
 653 }
 654
 655 static int
 656 mptsas_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
 657 {
 658         MPT_ADAPTER *ioc = rphy_to_ioc(rphy);
 659         int i, error;
 660         struct mptsas_portinfo *p;
 661         struct mptsas_enclosure enclosure_info;
 662         u64 enclosure_handle;
 663
 664         mutex_lock(&ioc->sas_topology_mutex);
 665         list_for_each_entry(p, &ioc->sas_topology, list) {
 666                 for (i = 0; i < p->num_phys; i++) {
 667                         if (p->phy_info[i].attached.sas_address ==
 668                             rphy->identify.sas_address) {
 669                                 enclosure_handle = p->phy_info[i].
 670                                         attached.handle_enclosure;
 671                                 goto found_info;
 672                         }
 673                 }
 674         }
 675         mutex_unlock(&ioc->sas_topology_mutex);
 676         return -ENXIO;
 677
 678  found_info:
 679         mutex_unlock(&ioc->sas_topology_mutex);
 680         memset(&enclosure_info, 0, sizeof(struct mptsas_enclosure));
 681         error = mptsas_sas_enclosure_pg0(ioc, &enclosure_info,
 682                         (MPI_SAS_ENCLOS_PGAD_FORM_HANDLE <<
 683                          MPI_SAS_ENCLOS_PGAD_FORM_SHIFT), enclosure_handle);
 684         if (!error)
 685                 *identifier = enclosure_info.enclosure_logical_id;
 686         return error;
 687 }
 688
 689 static int
 690 mptsas_get_bay_identifier(struct sas_rphy *rphy)
 691 {
 692         MPT_ADAPTER *ioc = rphy_to_ioc(rphy);
 693         struct mptsas_portinfo *p;
 694         int i, rc;
 695
 696         mutex_lock(&ioc->sas_topology_mutex);
 697         list_for_each_entry(p, &ioc->sas_topology, list) {
 698                 for (i = 0; i < p->num_phys; i++) {
 699                         if (p->phy_info[i].attached.sas_address ==
 700                             rphy->identify.sas_address) {
 701                                 rc = p->phy_info[i].attached.slot;
 702                                 goto out;
 703                         }
 704                 }
 705         }
 706         rc = -ENXIO;
 707  out:
 708         mutex_unlock(&ioc->sas_topology_mutex);
 709         return rc;
 710 }
 711
 712 static struct sas_function_template mptsas_transport_functions = {
 713         .get_linkerrors         = mptsas_get_linkerrors,
 714         .get_enclosure_identifier = mptsas_get_enclosure_identifier,
 715         .get_bay_identifier     = mptsas_get_bay_identifier,
 716         .phy_reset              = mptsas_phy_reset,
 717 };
 718
 719 static struct scsi_transport_template *mptsas_transport_template;
 720
 721 static int
 722 mptsas_sas_io_unit_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info)
 723 {
 724         ConfigExtendedPageHeader_t hdr;
 725         CONFIGPARMS cfg;
 726         SasIOUnitPage0_t *buffer;
 727         dma_addr_t dma_handle;
 728         int error, i;
 729
 730         hdr.PageVersion = MPI_SASIOUNITPAGE0_PAGEVERSION;
 731         hdr.ExtPageLength = 0;
 732         hdr.PageNumber = 0;
 733         hdr.Reserved1 = 0;
 734         hdr.Reserved2 = 0;
 735         hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
 736         hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
 737
 738         cfg.cfghdr.ehdr = &hdr;
 739         cfg.physAddr = -1;
 740         cfg.pageAddr = 0;
 741         cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
 742         cfg.dir = 0;    /* read */
 743         cfg.timeout = 10;
 744
 745         error = mpt_config(ioc, &cfg);
 746         if (error)
 747                 goto out;
 748         if (!hdr.ExtPageLength) {
 749                 error = -ENXIO;
 750                 goto out;
 751         }
 752
 753         buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 754                                             &dma_handle);
 755         if (!buffer) {
 756                 error = -ENOMEM;
 757                 goto out;
 758         }
 759
 760         cfg.physAddr = dma_handle;
 761         cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
 762
 763         error = mpt_config(ioc, &cfg);
 764         if (error)
 765                 goto out_free_consistent;
 766
 767         port_info->num_phys = buffer->NumPhys;
 768         port_info->phy_info = kcalloc(port_info->num_phys,
 769                 sizeof(struct mptsas_phyinfo),GFP_KERNEL);
 770         if (!port_info->phy_info) {
 771                 error = -ENOMEM;
 772                 goto out_free_consistent;
 773         }
 774
 775         if (port_info->num_phys)
 776                 port_info->handle =
 777                     le16_to_cpu(buffer->PhyData[0].ControllerDevHandle);
 778         for (i = 0; i < port_info->num_phys; i++) {
 779                 mptsas_print_phy_data(&buffer->PhyData[i]);
 780                 port_info->phy_info[i].phy_id = i;
 781                 port_info->phy_info[i].port_id =
 782                     buffer->PhyData[i].Port;
 783                 port_info->phy_info[i].negotiated_link_rate =
 784                     buffer->PhyData[i].NegotiatedLinkRate;
 785         }
 786
 787  out_free_consistent:
 788         pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 789                             buffer, dma_handle);
 790  out:
 791         return error;
 792 }
 793
 794 static int
 795 mptsas_sas_phy_pg0(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info,
 796                 u32 form, u32 form_specific)
 797 {
 798         ConfigExtendedPageHeader_t hdr;
 799         CONFIGPARMS cfg;
 800         SasPhyPage0_t *buffer;
 801         dma_addr_t dma_handle;
 802         int error;
 803
 804         hdr.PageVersion = MPI_SASPHY0_PAGEVERSION;
 805         hdr.ExtPageLength = 0;
 806         hdr.PageNumber = 0;
 807         hdr.Reserved1 = 0;
 808         hdr.Reserved2 = 0;
 809         hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
 810         hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_PHY;
 811
 812         cfg.cfghdr.ehdr = &hdr;
 813         cfg.dir = 0;    /* read */
 814         cfg.timeout = 10;
 815
 816         /* Get Phy Pg 0 for each Phy. */
 817         cfg.physAddr = -1;
 818         cfg.pageAddr = form + form_specific;
 819         cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
 820
 821         error = mpt_config(ioc, &cfg);
 822         if (error)
 823                 goto out;
 824
 825         if (!hdr.ExtPageLength) {
 826                 error = -ENXIO;
 827                 goto out;
 828         }
 829
 830         buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 831                                       &dma_handle);
 832         if (!buffer) {
 833                 error = -ENOMEM;
 834                 goto out;
 835         }
 836
 837         cfg.physAddr = dma_handle;
 838         cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
 839
 840         error = mpt_config(ioc, &cfg);
 841         if (error)
 842                 goto out_free_consistent;
 843
 844         mptsas_print_phy_pg0(buffer);
 845
 846         phy_info->hw_link_rate = buffer->HwLinkRate;
 847         phy_info->programmed_link_rate = buffer->ProgrammedLinkRate;
 848         phy_info->identify.handle = le16_to_cpu(buffer->OwnerDevHandle);
 849         phy_info->attached.handle = le16_to_cpu(buffer->AttachedDevHandle);
 850
 851  out_free_consistent:
 852         pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 853                             buffer, dma_handle);
 854  out:
 855         return error;
 856 }
 857
 858 static int
 859 mptsas_sas_device_pg0(MPT_ADAPTER *ioc, struct mptsas_devinfo *device_info,
 860                 u32 form, u32 form_specific)
 861 {
 862         ConfigExtendedPageHeader_t hdr;
 863         CONFIGPARMS cfg;
 864         SasDevicePage0_t *buffer;
 865         dma_addr_t dma_handle;
 866         __le64 sas_address;
 867         int error;
 868
 869         hdr.PageVersion = MPI_SASDEVICE0_PAGEVERSION;
 870         hdr.ExtPageLength = 0;
 871         hdr.PageNumber = 0;
 872         hdr.Reserved1 = 0;
 873         hdr.Reserved2 = 0;
 874         hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
 875         hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_DEVICE;
 876
 877         cfg.cfghdr.ehdr = &hdr;
 878         cfg.pageAddr = form + form_specific;
 879         cfg.physAddr = -1;
 880         cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
 881         cfg.dir = 0;    /* read */
 882         cfg.timeout = 10;
 883
 884         memset(device_info, 0, sizeof(struct mptsas_devinfo));
 885         error = mpt_config(ioc, &cfg);
 886         if (error)
 887                 goto out;
 888         if (!hdr.ExtPageLength) {
 889                 error = -ENXIO;
 890                 goto out;
 891         }
 892
 893         buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 894                                       &dma_handle);
 895         if (!buffer) {
 896                 error = -ENOMEM;
 897                 goto out;
 898         }
 899
 900         cfg.physAddr = dma_handle;
 901         cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
 902
 903         error = mpt_config(ioc, &cfg);
 904         if (error)
 905                 goto out_free_consistent;
 906
 907         mptsas_print_device_pg0(buffer);
 908
 909         device_info->handle = le16_to_cpu(buffer->DevHandle);
 910         device_info->handle_parent = le16_to_cpu(buffer->ParentDevHandle);
 911         device_info->handle_enclosure =
 912             le16_to_cpu(buffer->EnclosureHandle);
 913         device_info->slot = le16_to_cpu(buffer->Slot);
 914         device_info->phy_id = buffer->PhyNum;
 915         device_info->port_id = buffer->PhysicalPort;
 916         device_info->id = buffer->TargetID;
 917         device_info->channel = buffer->Bus;
 918         memcpy(&sas_address, &buffer->SASAddress, sizeof(__le64));
 919         device_info->sas_address = le64_to_cpu(sas_address);
 920         device_info->device_info =
 921             le32_to_cpu(buffer->DeviceInfo);
 922
 923  out_free_consistent:
 924         pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 925                             buffer, dma_handle);
 926  out:
 927         return error;
 928 }
 929
 930 static int
 931 mptsas_sas_expander_pg0(MPT_ADAPTER *ioc, struct mptsas_portinfo *port_info,
 932                 u32 form, u32 form_specific)
 933 {
 934         ConfigExtendedPageHeader_t hdr;
 935         CONFIGPARMS cfg;
 936         SasExpanderPage0_t *buffer;
 937         dma_addr_t dma_handle;
 938         int error;
 939
 940         hdr.PageVersion = MPI_SASEXPANDER0_PAGEVERSION;
 941         hdr.ExtPageLength = 0;
 942         hdr.PageNumber = 0;
 943         hdr.Reserved1 = 0;
 944         hdr.Reserved2 = 0;
 945         hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
 946         hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_EXPANDER;
 947
 948         cfg.cfghdr.ehdr = &hdr;
 949         cfg.physAddr = -1;
 950         cfg.pageAddr = form + form_specific;
 951         cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
 952         cfg.dir = 0;    /* read */
 953         cfg.timeout = 10;
 954
 955         memset(port_info, 0, sizeof(struct mptsas_portinfo));
 956         error = mpt_config(ioc, &cfg);
 957         if (error)
 958                 goto out;
 959
 960         if (!hdr.ExtPageLength) {
 961                 error = -ENXIO;
 962                 goto out;
 963         }
 964
 965         buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 966                                       &dma_handle);
 967         if (!buffer) {
 968                 error = -ENOMEM;
 969                 goto out;
 970         }
 971
 972         cfg.physAddr = dma_handle;
 973         cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
 974
 975         error = mpt_config(ioc, &cfg);
 976         if (error)
 977                 goto out_free_consistent;
 978
 979         /* save config data */
 980         port_info->num_phys = buffer->NumPhys;
 981         port_info->handle = le16_to_cpu(buffer->DevHandle);
 982         port_info->phy_info = kcalloc(port_info->num_phys,
 983                 sizeof(struct mptsas_phyinfo),GFP_KERNEL);
 984         if (!port_info->phy_info) {
 985                 error = -ENOMEM;
 986                 goto out_free_consistent;
 987         }
 988
 989  out_free_consistent:
 990         pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
 991                             buffer, dma_handle);
 992  out:
 993         return error;
 994 }
 995
 996 static int
 997 mptsas_sas_expander_pg1(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info,
 998                 u32 form, u32 form_specific)
 999 {
1000         ConfigExtendedPageHeader_t hdr;
1001         CONFIGPARMS cfg;
1002         SasExpanderPage1_t *buffer;
1003         dma_addr_t dma_handle;
1004         int error;
1005
1006         hdr.PageVersion = MPI_SASEXPANDER0_PAGEVERSION;
1007         hdr.ExtPageLength = 0;
1008         hdr.PageNumber = 1;
1009         hdr.Reserved1 = 0;
1010         hdr.Reserved2 = 0;
1011         hdr.PageType = MPI_CONFIG_PAGETYPE_EXTENDED;
1012         hdr.ExtPageType = MPI_CONFIG_EXTPAGETYPE_SAS_EXPANDER;
1013
1014         cfg.cfghdr.ehdr = &hdr;
1015         cfg.physAddr = -1;
1016         cfg.pageAddr = form + form_specific;
1017         cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER;
1018         cfg.dir = 0;    /* read */
1019         cfg.timeout = 10;
1020
1021         error = mpt_config(ioc, &cfg);
1022         if (error)
1023                 goto out;
1024
1025         if (!hdr.ExtPageLength) {
1026                 error = -ENXIO;
1027                 goto out;
1028         }
1029
1030         buffer = pci_alloc_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1031                                       &dma_handle);
1032         if (!buffer) {
1033                 error = -ENOMEM;
1034                 goto out;
1035         }
1036
1037         cfg.physAddr = dma_handle;
1038         cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT;
1039
1040         error = mpt_config(ioc, &cfg);
1041         if (error)
1042                 goto out_free_consistent;
1043
1044
1045         mptsas_print_expander_pg1(buffer);
1046
1047         /* save config data */
1048         phy_info->phy_id = buffer->PhyIdentifier;
1049         phy_info->port_id = buffer->PhysicalPort;
1050         phy_info->negotiated_link_rate = buffer->NegotiatedLinkRate;
1051         phy_info->programmed_link_rate = buffer->ProgrammedLinkRate;
1052         phy_info->hw_link_rate = buffer->HwLinkRate;
1053         phy_info->identify.handle = le16_to_cpu(buffer->OwnerDevHandle);
1054         phy_info->attached.handle = le16_to_cpu(buffer->AttachedDevHandle);
1055
1056  out_free_consistent:
1057         pci_free_consistent(ioc->pcidev, hdr.ExtPageLength * 4,
1058                             buffer, dma_handle);
1059  out:
1060         return error;
1061 }
1062
1063 /*
1064  * Returns true if there is a scsi end device
1065  */
1066 static inline int
1067 mptsas_is_end_device(struct mptsas_devinfo * attached)
1068 {
1069         if ((attached->handle) &&
1070             (attached->device_info &
1071             MPI_SAS_DEVICE_INFO_END_DEVICE) &&
1072             ((attached->device_info &
1073             MPI_SAS_DEVICE_INFO_SSP_TARGET) |
1074             (attached->device_info &
1075             MPI_SAS_DEVICE_INFO_STP_TARGET) |
1076             (attached->device_info &
1077             MPI_SAS_DEVICE_INFO_SATA_DEVICE)))
1078                 return 1;
1079         else
1080                 return 0;
1081 }
1082
1083 static void
1084 mptsas_parse_device_info(struct sas_identify *identify,
1085                 struct mptsas_devinfo *device_info)
1086 {
1087         u16 protocols;
1088
1089         identify->sas_address = device_info->sas_address;
1090         identify->phy_identifier = device_info->phy_id;
1091
1092         /*
1093          * Fill in Phy Initiator Port Protocol.
1094          * Bits 6:3, more than one bit can be set, fall through cases.
1095          */
1096         protocols = device_info->device_info & 0x78;
1097         identify->initiator_port_protocols = 0;
1098         if (protocols & MPI_SAS_DEVICE_INFO_SSP_INITIATOR)
1099                 identify->initiator_port_protocols |= SAS_PROTOCOL_SSP;
1100         if (protocols & MPI_SAS_DEVICE_INFO_STP_INITIATOR)
1101                 identify->initiator_port_protocols |= SAS_PROTOCOL_STP;
1102         if (protocols & MPI_SAS_DEVICE_INFO_SMP_INITIATOR)
1103                 identify->initiator_port_protocols |= SAS_PROTOCOL_SMP;
1104         if (protocols & MPI_SAS_DEVICE_INFO_SATA_HOST)
1105                 identify->initiator_port_protocols |= SAS_PROTOCOL_SATA;
1106
1107         /*
1108          * Fill in Phy Target Port Protocol.
1109          * Bits 10:7, more than one bit can be set, fall through cases.
1110          */
1111         protocols = device_info->device_info & 0x780;
1112         identify->target_port_protocols = 0;
1113         if (protocols & MPI_SAS_DEVICE_INFO_SSP_TARGET)
1114                 identify->target_port_protocols |= SAS_PROTOCOL_SSP;
1115         if (protocols & MPI_SAS_DEVICE_INFO_STP_TARGET)
1116                 identify->target_port_protocols |= SAS_PROTOCOL_STP;
1117         if (protocols & MPI_SAS_DEVICE_INFO_SMP_TARGET)
1118                 identify->target_port_protocols |= SAS_PROTOCOL_SMP;
1119         if (protocols & MPI_SAS_DEVICE_INFO_SATA_DEVICE)
1120                 identify->target_port_protocols |= SAS_PROTOCOL_SATA;
1121
1122         /*
1123          * Fill in Attached device type.
1124          */
1125         switch (device_info->device_info &
1126                         MPI_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) {
1127         case MPI_SAS_DEVICE_INFO_NO_DEVICE:
1128                 identify->device_type = SAS_PHY_UNUSED;
1129                 break;
1130         case MPI_SAS_DEVICE_INFO_END_DEVICE:
1131                 identify->device_type = SAS_END_DEVICE;
1132                 break;
1133         case MPI_SAS_DEVICE_INFO_EDGE_EXPANDER:
1134                 identify->device_type = SAS_EDGE_EXPANDER_DEVICE;
1135                 break;
1136         case MPI_SAS_DEVICE_INFO_FANOUT_EXPANDER:
1137                 identify->device_type = SAS_FANOUT_EXPANDER_DEVICE;
1138                 break;
1139         }
1140 }
1141
1142 static int mptsas_probe_one_phy(struct device *dev,
1143                 struct mptsas_phyinfo *phy_info, int index, int local)
1144 {
1145         MPT_ADAPTER *ioc;
1146         struct sas_phy *phy;
1147         int error;
1148
1149         if (!dev)
1150                 return -ENODEV;
1151
1152         if (!phy_info->phy) {
1153                 phy = sas_phy_alloc(dev, index);
1154                 if (!phy)
1155                         return -ENOMEM;
1156         } else
1157                 phy = phy_info->phy;
1158
1159         phy->port_identifier = phy_info->port_id;
1160         mptsas_parse_device_info(&phy->identify, &phy_info->identify);
1161
1162         /*
1163          * Set Negotiated link rate.
1164          */
1165         switch (phy_info->negotiated_link_rate) {
1166         case MPI_SAS_IOUNIT0_RATE_PHY_DISABLED:
1167                 phy->negotiated_linkrate = SAS_PHY_DISABLED;
1168                 break;
1169         case MPI_SAS_IOUNIT0_RATE_FAILED_SPEED_NEGOTIATION:
1170                 phy->negotiated_linkrate = SAS_LINK_RATE_FAILED;
1171                 break;
1172         case MPI_SAS_IOUNIT0_RATE_1_5:
1173                 phy->negotiated_linkrate = SAS_LINK_RATE_1_5_GBPS;
1174                 break;
1175         case MPI_SAS_IOUNIT0_RATE_3_0:
1176                 phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
1177                 break;
1178         case MPI_SAS_IOUNIT0_RATE_SATA_OOB_COMPLETE:
1179         case MPI_SAS_IOUNIT0_RATE_UNKNOWN:
1180         default:
1181                 phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
1182                 break;
1183         }
1184
1185         /*
1186          * Set Max hardware link rate.
1187          */
1188         switch (phy_info->hw_link_rate & MPI_SAS_PHY0_PRATE_MAX_RATE_MASK) {
1189         case MPI_SAS_PHY0_HWRATE_MAX_RATE_1_5:
1190                 phy->maximum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
1191                 break;
1192         case MPI_SAS_PHY0_PRATE_MAX_RATE_3_0:
1193                 phy->maximum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS;
1194                 break;
1195         default:
1196                 break;
1197         }
1198
1199         /*
1200          * Set Max programmed link rate.
1201          */
1202         switch (phy_info->programmed_link_rate &
1203                         MPI_SAS_PHY0_PRATE_MAX_RATE_MASK) {
1204         case MPI_SAS_PHY0_PRATE_MAX_RATE_1_5:
1205                 phy->maximum_linkrate = SAS_LINK_RATE_1_5_GBPS;
1206                 break;
1207         case MPI_SAS_PHY0_PRATE_MAX_RATE_3_0:
1208                 phy->maximum_linkrate = SAS_LINK_RATE_3_0_GBPS;
1209                 break;
1210         default:
1211                 break;
1212         }
1213
1214         /*
1215          * Set Min hardware link rate.
1216          */
1217         switch (phy_info->hw_link_rate & MPI_SAS_PHY0_HWRATE_MIN_RATE_MASK) {
1218         case MPI_SAS_PHY0_HWRATE_MIN_RATE_1_5:
1219                 phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
1220                 break;
1221         case MPI_SAS_PHY0_PRATE_MIN_RATE_3_0:
1222                 phy->minimum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS;
1223                 break;
1224         default:
1225                 break;
1226         }
1227
1228         /*
1229          * Set Min programmed link rate.
1230          */
1231         switch (phy_info->programmed_link_rate &
1232                         MPI_SAS_PHY0_PRATE_MIN_RATE_MASK) {
1233         case MPI_SAS_PHY0_PRATE_MIN_RATE_1_5:
1234                 phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
1235                 break;
1236         case MPI_SAS_PHY0_PRATE_MIN_RATE_3_0:
1237                 phy->minimum_linkrate = SAS_LINK_RATE_3_0_GBPS;
1238                 break;
1239         default:
1240                 break;
1241         }
1242
1243         if (!phy_info->phy) {
1244
1245                 if (local)
1246                         phy->local_attached = 1;
1247
1248                 error = sas_phy_add(phy);
1249                 if (error) {
1250                         sas_phy_free(phy);
1251                         return error;
1252                 }
1253                 phy_info->phy = phy;
1254         }
1255
1256         if ((phy_info->attached.handle) &&
1257             (!phy_info->rphy)) {
1258
1259                 struct sas_rphy *rphy;
1260                 struct sas_identify identify;
1261
1262                 ioc = phy_to_ioc(phy_info->phy);
1263
1264                 /*
1265                  * Let the hotplug_work thread handle processing
1266                  * the adding/removing of devices that occur
1267                  * after start of day.
1268                  */
1269                 if (ioc->sas_discovery_runtime &&
1270                         mptsas_is_end_device(&phy_info->attached))
1271                         return 0;
1272
1273                 mptsas_parse_device_info(&identify, &phy_info->attached);
1274                 switch (identify.device_type) {
1275                 case SAS_END_DEVICE:
1276                         rphy = sas_end_device_alloc(phy);
1277                         break;
1278                 case SAS_EDGE_EXPANDER_DEVICE:
1279                 case SAS_FANOUT_EXPANDER_DEVICE:
1280                         rphy = sas_expander_alloc(phy, identify.device_type);
1281                         break;
1282                 default:
1283                         rphy = NULL;
1284                         break;
1285                 }
1286                 if (!rphy)
1287                         return 0; /* non-fatal: an rphy can be added later */
1288
1289                 rphy->identify = identify;
1290
1291                 error = sas_rphy_add(rphy);
1292                 if (error) {
1293                         sas_rphy_free(rphy);
1294                         return error;
1295                 }
1296
1297                 phy_info->rphy = rphy;
1298         }
1299
1300         return 0;
1301 }
1302
1303 static int
1304 mptsas_probe_hba_phys(MPT_ADAPTER *ioc)
1305 {
1306         struct mptsas_portinfo *port_info, *hba;
1307         u32 handle = 0xFFFF;
1308         int error = -ENOMEM, i;
1309
1310         hba = kzalloc(sizeof(*port_info), GFP_KERNEL);
1311         if (! hba)
1312                 goto out;
1313
1314         error = mptsas_sas_io_unit_pg0(ioc, hba);
1315         if (error)
1316                 goto out_free_port_info;
1317
1318         mutex_lock(&ioc->sas_topology_mutex);
1319         port_info = mptsas_find_portinfo_by_handle(ioc, hba->handle);
1320         if (!port_info) {
1321                 port_info = hba;
1322                 list_add_tail(&port_info->list, &ioc->sas_topology);
1323         } else {
1324                 port_info->handle = hba->handle;
1325                 for (i = 0; i < hba->num_phys; i++)
1326                         port_info->phy_info[i].negotiated_link_rate =
1327                                 hba->phy_info[i].negotiated_link_rate;
1328                 if (hba->phy_info)
1329                         kfree(hba->phy_info);
1330                 kfree(hba);
1331                 hba = NULL;
1332         }
1333         mutex_unlock(&ioc->sas_topology_mutex);
1334         ioc->num_ports = port_info->num_phys;
1335
1336         for (i = 0; i < port_info->num_phys; i++) {
1337                 mptsas_sas_phy_pg0(ioc, &port_info->phy_info[i],
1338                         (MPI_SAS_PHY_PGAD_FORM_PHY_NUMBER <<
1339                          MPI_SAS_PHY_PGAD_FORM_SHIFT), i);
1340
1341                 mptsas_sas_device_pg0(ioc, &port_info->phy_info[i].identify,
1342                         (MPI_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE <<
1343                          MPI_SAS_DEVICE_PGAD_FORM_SHIFT), handle);
1344                 port_info->phy_info[i].identify.phy_id =
1345                     port_info->phy_info[i].phy_id;
1346                 handle = port_info->phy_info[i].identify.handle;
1347
1348                 if (port_info->phy_info[i].attached.handle) {
1349                         mptsas_sas_device_pg0(ioc,
1350                                 &port_info->phy_info[i].attached,
1351                                 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
1352                                  MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
1353                                 port_info->phy_info[i].attached.handle);
1354                 }
1355
1356                 mptsas_probe_one_phy(&ioc->sh->shost_gendev,
1357                     &port_info->phy_info[i], ioc->sas_index, 1);
1358                 ioc->sas_index++;
1359         }
1360
1361         return 0;
1362
1363  out_free_port_info:
1364         if (hba)
1365                 kfree(hba);
1366  out:
1367         return error;
1368 }
1369
1370 static int
1371 mptsas_probe_expander_phys(MPT_ADAPTER *ioc, u32 *handle)
1372 {
1373         struct mptsas_portinfo *port_info, *p, *ex;
1374         int error = -ENOMEM, i, j;
1375
1376         ex = kzalloc(sizeof(*port_info), GFP_KERNEL);
1377         if (!ex)
1378                 goto out;
1379
1380         error = mptsas_sas_expander_pg0(ioc, ex,
1381                 (MPI_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE <<
1382                  MPI_SAS_EXPAND_PGAD_FORM_SHIFT), *handle);
1383         if (error)
1384                 goto out_free_port_info;
1385
1386         *handle = ex->handle;
1387
1388         mutex_lock(&ioc->sas_topology_mutex);
1389         port_info = mptsas_find_portinfo_by_handle(ioc, *handle);
1390         if (!port_info) {
1391                 port_info = ex;
1392                 list_add_tail(&port_info->list, &ioc->sas_topology);
1393         } else {
1394                 port_info->handle = ex->handle;
1395                 if (ex->phy_info)
1396                         kfree(ex->phy_info);
1397                 kfree(ex);
1398                 ex = NULL;
1399         }
1400         mutex_unlock(&ioc->sas_topology_mutex);
1401
1402         for (i = 0; i < port_info->num_phys; i++) {
1403                 struct device *parent;
1404
1405                 mptsas_sas_expander_pg1(ioc, &port_info->phy_info[i],
1406                         (MPI_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM <<
1407                          MPI_SAS_EXPAND_PGAD_FORM_SHIFT), (i << 16) + *handle);
1408
1409                 if (port_info->phy_info[i].identify.handle) {
1410                         mptsas_sas_device_pg0(ioc,
1411                                 &port_info->phy_info[i].identify,
1412                                 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
1413                                  MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
1414                                 port_info->phy_info[i].identify.handle);
1415                         port_info->phy_info[i].identify.phy_id =
1416                             port_info->phy_info[i].phy_id;
1417                 }
1418
1419                 if (port_info->phy_info[i].attached.handle) {
1420                         mptsas_sas_device_pg0(ioc,
1421                                 &port_info->phy_info[i].attached,
1422                                 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
1423                                  MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
1424                                 port_info->phy_info[i].attached.handle);
1425                         port_info->phy_info[i].attached.phy_id =
1426                             port_info->phy_info[i].phy_id;
1427                 }
1428
1429                 /*
1430                  * If we find a parent port handle this expander is
1431                  * attached to another expander, else it hangs of the
1432                  * HBA phys.
1433                  */
1434                 parent = &ioc->sh->shost_gendev;
1435                 mutex_lock(&ioc->sas_topology_mutex);
1436                 list_for_each_entry(p, &ioc->sas_topology, list) {
1437                         for (j = 0; j < p->num_phys; j++) {
1438                                 if (port_info->phy_info[i].identify.handle ==
1439                                                 p->phy_info[j].attached.handle)
1440                                         parent = &p->phy_info[j].rphy->dev;
1441                         }
1442                 }
1443                 mutex_unlock(&ioc->sas_topology_mutex);
1444
1445                 mptsas_probe_one_phy(parent, &port_info->phy_info[i],
1446                     ioc->sas_index, 0);
1447                 ioc->sas_index++;
1448         }
1449
1450         return 0;
1451
1452  out_free_port_info:
1453         if (ex) {
1454                 if (ex->phy_info)
1455                         kfree(ex->phy_info);
1456                 kfree(ex);
1457         }
1458  out:
1459         return error;
1460 }
1461
1462 /*
1463  * mptsas_delete_expander_phys
1464  *
1465  *
1466  * This will traverse topology, and remove expanders
1467  * that are no longer present
1468  */
1469 static void
1470 mptsas_delete_expander_phys(MPT_ADAPTER *ioc)
1471 {
1472         struct mptsas_portinfo buffer;
1473         struct mptsas_portinfo *port_info, *n, *parent;
1474         int i;
1475
1476         mutex_lock(&ioc->sas_topology_mutex);
1477         list_for_each_entry_safe(port_info, n, &ioc->sas_topology, list) {
1478
1479                 if (port_info->phy_info &&
1480                     (!(port_info->phy_info[0].identify.device_info &
1481                     MPI_SAS_DEVICE_INFO_SMP_TARGET)))
1482                         continue;
1483
1484                 if (mptsas_sas_expander_pg0(ioc, &buffer,
1485                      (MPI_SAS_EXPAND_PGAD_FORM_HANDLE <<
1486                      MPI_SAS_EXPAND_PGAD_FORM_SHIFT), port_info->handle)) {
1487
1488                         /*
1489                          * Obtain the port_info instance to the parent port
1490                          */
1491                         parent = mptsas_find_portinfo_by_handle(ioc,
1492                             port_info->phy_info[0].identify.handle_parent);
1493
1494                         if (!parent)
1495                                 goto next_port;
1496
1497                         /*
1498                          * Delete rphys in the parent that point
1499                          * to this expander.  The transport layer will
1500                          * cleanup all the children.
1501                          */
1502                         for (i = 0; i < parent->num_phys; i++) {
1503                                 if ((!parent->phy_info[i].rphy) ||
1504                                     (parent->phy_info[i].attached.sas_address !=
1505                                    port_info->phy_info[i].identify.sas_address))
1506                                         continue;
1507                                 sas_rphy_delete(parent->phy_info[i].rphy);
1508                                 memset(&parent->phy_info[i].attached, 0,
1509                                     sizeof(struct mptsas_devinfo));
1510                                 parent->phy_info[i].rphy = NULL;
1511                                 parent->phy_info[i].starget = NULL;
1512                         }
1513  next_port:
1514                         list_del(&port_info->list);
1515                         if (port_info->phy_info)
1516                                 kfree(port_info->phy_info);
1517                         kfree(port_info);
1518                 }
1519                 /*
1520                 * Free this memory allocated from inside
1521                 * mptsas_sas_expander_pg0
1522                 */
1523                 if (buffer.phy_info)
1524                         kfree(buffer.phy_info);
1525         }
1526         mutex_unlock(&ioc->sas_topology_mutex);
1527 }
1528
1529 /*
1530  * Start of day discovery
1531  */
1532 static void
1533 mptsas_scan_sas_topology(MPT_ADAPTER *ioc)
1534 {
1535         u32 handle = 0xFFFF;
1536         int i;
1537
1538         mutex_lock(&ioc->sas_discovery_mutex);
1539         mptsas_probe_hba_phys(ioc);
1540         while (!mptsas_probe_expander_phys(ioc, &handle))
1541                 ;
1542         /*
1543           Reporting RAID volumes.
1544         */
1545         if (!ioc->raid_data.pIocPg2)
1546                 goto out;
1547         if (!ioc->raid_data.pIocPg2->NumActiveVolumes)
1548                 goto out;
1549         for (i=0; i<ioc->raid_data.pIocPg2->NumActiveVolumes; i++) {
1550                 scsi_add_device(ioc->sh, ioc->num_ports,
1551                     ioc->raid_data.pIocPg2->RaidVolume[i].VolumeID, 0);
1552         }
1553  out:
1554         mutex_unlock(&ioc->sas_discovery_mutex);
1555 }
1556
1557 /*
1558  * Work queue thread to handle Runtime discovery
1559  * Mere purpose is the hot add/delete of expanders
1560  */
1561 static void
1562 mptscsih_discovery_work(void * arg)
1563 {
1564         struct mptsas_discovery_event *ev = arg;
1565         MPT_ADAPTER *ioc = ev->ioc;
1566         u32 handle = 0xFFFF;
1567
1568         mutex_lock(&ioc->sas_discovery_mutex);
1569         ioc->sas_discovery_runtime=1;
1570         mptsas_delete_expander_phys(ioc);
1571         mptsas_probe_hba_phys(ioc);
1572         while (!mptsas_probe_expander_phys(ioc, &handle))
1573                 ;
1574         kfree(ev);
1575         ioc->sas_discovery_runtime=0;
1576         mutex_unlock(&ioc->sas_discovery_mutex);
1577 }
1578
1579 static struct mptsas_phyinfo *
1580 mptsas_find_phyinfo_by_parent(MPT_ADAPTER *ioc, u16 parent_handle, u8 phy_id)
1581 {
1582         struct mptsas_portinfo *port_info;
1583         struct mptsas_devinfo device_info;
1584         struct mptsas_phyinfo *phy_info = NULL;
1585         int i, error;
1586
1587         /*
1588          * Retrieve the parent sas_address
1589          */
1590         error = mptsas_sas_device_pg0(ioc, &device_info,
1591                 (MPI_SAS_DEVICE_PGAD_FORM_HANDLE <<
1592                  MPI_SAS_DEVICE_PGAD_FORM_SHIFT),
1593                 parent_handle);
1594         if (error)
1595                 return NULL;
1596
1597         /*
1598          * The phy_info structures are never deallocated during lifetime of
1599          * a host, so the code below is safe without additional refcounting.
1600          */
1601         mutex_lock(&ioc->sas_topology_mutex);
1602         list_for_each_entry(port_info, &ioc->sas_topology, list) {
1603                 for (i = 0; i < port_info->num_phys; i++) {
1604                         if (port_info->phy_info[i].identify.sas_address ==
1605                             device_info.sas_address &&
1606                             port_info->phy_info[i].phy_id == phy_id) {
1607                                 phy_info = &port_info->phy_info[i];
1608                                 break;
1609                         }
1610                 }
1611         }
1612         mutex_unlock(&ioc->sas_topology_mutex);
1613
1614         return phy_info;
1615 }
1616
1617 static struct mptsas_phyinfo *
1618 mptsas_find_phyinfo_by_target(MPT_ADAPTER *ioc, u32 id)
1619 {
1620         struct mptsas_portinfo *port_info;
1621         struct mptsas_phyinfo *phy_info = NULL;
1622         int i;
1623
1624         /*
1625          * The phy_info structures are never deallocated during lifetime of
1626          * a host, so the code below is safe without additional refcounting.
1627          */
1628         mutex_lock(&ioc->sas_topology_mutex);
1629         list_for_each_entry(port_info, &ioc->sas_topology, list) {
1630                 for (i = 0; i < port_info->num_phys; i++)
1631                         if (mptsas_is_end_device(&port_info->phy_info[i].attached))
1632                                 if (port_info->phy_info[i].attached.id == id) {
1633                                         phy_info = &port_info->phy_info[i];
1634                                         break;
1635                                 }
1636         }
1637         mutex_unlock(&ioc->sas_topology_mutex);
1638
1639         return phy_info;
1640 }
1641
1642 /*
1643  * Work queue thread to clear the persitency table
1644  */
1645 static void
1646 mptscsih_sas_persist_clear_table(void * arg)
1647 {
1648         MPT_ADAPTER *ioc = (MPT_ADAPTER *)arg;
1649
1650         mptbase_sas_persist_operation(ioc, MPI_SAS_OP_CLEAR_NOT_PRESENT);
1651 }
1652
1653 static void
1654 mptsas_reprobe_lun(struct scsi_device *sdev, void *data)
1655 {
1656         sdev->no_uld_attach = data ? 1 : 0;
1657         scsi_device_reprobe(sdev);
1658 }
1659
1660 static void
1661 mptsas_reprobe_target(struct scsi_target *starget, int uld_attach)
1662 {
1663         starget_for_each_device(starget, uld_attach ? (void *)1 : NULL,
1664                         mptsas_reprobe_lun);
1665 }
1666
1667
1668 /*
1669  * Work queue thread to handle SAS hotplug events
1670  */
1671 static void
1672 mptsas_hotplug_work(void *arg)
1673 {
1674         struct mptsas_hotplug_event *ev = arg;
1675         MPT_ADAPTER *ioc = ev->ioc;
1676         struct mptsas_phyinfo *phy_info;
1677         struct sas_rphy *rphy;
1678         struct scsi_device *sdev;
1679         struct sas_identify identify;
1680         char *ds = NULL;
1681         struct mptsas_devinfo sas_device;
1682         VirtTarget *vtarget;
1683
1684         mutex_lock(&ioc->sas_discovery_mutex);
1685
1686         switch (ev->event_type) {
1687         case MPTSAS_DEL_DEVICE:
1688
1689                 phy_info = mptsas_find_phyinfo_by_target(ioc, ev->id);
1690
1691                 /*
1692                  * Sanity checks, for non-existing phys and remote rphys.
1693                  */
1694                 if (!phy_info)
1695                         break;
1696                 if (!phy_info->rphy)
1697                         break;
1698                 if (phy_info->starget) {
1699                         vtarget = phy_info->starget->hostdata;
1700
1701                         if (!vtarget)
1702                                 break;
1703                         /*
1704                          * Handling  RAID components
1705                          */
1706                         if (ev->phys_disk_num_valid) {
1707                                 vtarget->target_id = ev->phys_disk_num;
1708                                 vtarget->tflags |= MPT_TARGET_FLAGS_RAID_COMPONENT;
1709                                 mptsas_reprobe_target(vtarget->starget, 1);
1710                                 break;
1711                         }
1712                 }
1713
1714                 if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_SSP_TARGET)
1715                         ds = "ssp";
1716                 if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_STP_TARGET)
1717                         ds = "stp";
1718                 if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_SATA_DEVICE)
1719                         ds = "sata";
1720
1721                 printk(MYIOC_s_INFO_FMT
1722                        "removing %s device, channel %d, id %d, phy %d\n",
1723                        ioc->name, ds, ev->channel, ev->id, phy_info->phy_id);
1724
1725                 sas_rphy_delete(phy_info->rphy);
1726                 memset(&phy_info->attached, 0, sizeof(struct mptsas_devinfo));
1727                 phy_info->rphy = NULL;
1728                 phy_info->starget = NULL;
1729                 break;
1730         case MPTSAS_ADD_DEVICE:
1731
1732                 /*
1733                  * Refresh sas device pg0 data
1734                  */
1735                 if (mptsas_sas_device_pg0(ioc, &sas_device,
1736                     (MPI_SAS_DEVICE_PGAD_FORM_BUS_TARGET_ID <<
1737                      MPI_SAS_DEVICE_PGAD_FORM_SHIFT), ev->id))
1738                         break;
1739
1740                 phy_info = mptsas_find_phyinfo_by_parent(ioc,
1741                                 sas_device.handle_parent, sas_device.phy_id);
1742
1743                 if (!phy_info) {
1744                         u32 handle = 0xFFFF;
1745
1746                         /*
1747                         * Its possible when an expander has been hot added
1748                         * containing attached devices, the sas firmware
1749                         * may send a RC_ADDED event prior to the
1750                         * DISCOVERY STOP event. If that occurs, our
1751                         * view of the topology in the driver in respect to this
1752                         * expander might of not been setup, and we hit this
1753                         * condition.
1754                         * Therefore, this code kicks off discovery to
1755                         * refresh the data.
1756                         * Then again, we check whether the parent phy has
1757                         * been created.
1758                         */
1759                         ioc->sas_discovery_runtime=1;
1760                         mptsas_delete_expander_phys(ioc);
1761                         mptsas_probe_hba_phys(ioc);
1762                         while (!mptsas_probe_expander_phys(ioc, &handle))
1763                                 ;
1764                         ioc->sas_discovery_runtime=0;
1765
1766                         phy_info = mptsas_find_phyinfo_by_parent(ioc,
1767                                 sas_device.handle_parent, sas_device.phy_id);
1768                         if (!phy_info)
1769                                 break;
1770                 }
1771
1772                 if (phy_info->starget) {
1773                         vtarget = phy_info->starget->hostdata;
1774
1775                         if (!vtarget)
1776                                 break;
1777                         /*
1778                          * Handling  RAID components
1779                          */
1780                         if (vtarget->tflags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
1781                                 vtarget->tflags &= ~MPT_TARGET_FLAGS_RAID_COMPONENT;
1782                                 vtarget->target_id = ev->id;
1783                                 mptsas_reprobe_target(phy_info->starget, 0);
1784                         }
1785                         break;
1786                 }
1787
1788                 if (phy_info->rphy)
1789                         break;
1790
1791                 memcpy(&phy_info->attached, &sas_device,
1792                     sizeof(struct mptsas_devinfo));
1793
1794                 if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_SSP_TARGET)
1795                         ds = "ssp";
1796                 if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_STP_TARGET)
1797                         ds = "stp";
1798                 if (phy_info->attached.device_info & MPI_SAS_DEVICE_INFO_SATA_DEVICE)
1799                         ds = "sata";
1800
1801                 printk(MYIOC_s_INFO_FMT
1802                        "attaching %s device, channel %d, id %d, phy %d\n",
1803                        ioc->name, ds, ev->channel, ev->id, ev->phy_id);
1804
1805                 mptsas_parse_device_info(&identify, &phy_info->attached);
1806                 switch (identify.device_type) {
1807                 case SAS_END_DEVICE:
1808                         rphy = sas_end_device_alloc(phy_info->phy);
1809                         break;
1810                 case SAS_EDGE_EXPANDER_DEVICE:
1811                 case SAS_FANOUT_EXPANDER_DEVICE:
1812                         rphy = sas_expander_alloc(phy_info->phy, identify.device_type);
1813                         break;
1814                 default:
1815                         rphy = NULL;
1816                         break;
1817                 }
1818                 if (!rphy)
1819                         break; /* non-fatal: an rphy can be added later */
1820
1821                 rphy->identify = identify;
1822                 if (sas_rphy_add(rphy)) {
1823                         sas_rphy_free(rphy);
1824                         break;
1825                 }
1826
1827                 phy_info->rphy = rphy;
1828                 break;
1829         case MPTSAS_ADD_RAID:
1830                 sdev = scsi_device_lookup(
1831                         ioc->sh,
1832                         ioc->num_ports,
1833                         ev->id,
1834                         0);
1835                 if (sdev) {
1836                         scsi_device_put(sdev);
1837                         break;
1838                 }
1839                 printk(MYIOC_s_INFO_FMT
1840                        "attaching raid volume, channel %d, id %d\n",
1841                        ioc->name, ioc->num_ports, ev->id);
1842                 scsi_add_device(ioc->sh,
1843                         ioc->num_ports,
1844                         ev->id,
1845                         0);
1846                 mpt_findImVolumes(ioc);
1847                 break;
1848         case MPTSAS_DEL_RAID:
1849                 sdev = scsi_device_lookup(
1850                         ioc->sh,
1851                         ioc->num_ports,
1852                         ev->id,
1853                         0);
1854                 if (!sdev)
1855                         break;
1856                 printk(MYIOC_s_INFO_FMT
1857                        "removing raid volume, channel %d, id %d\n",
1858                        ioc->name, ioc->num_ports, ev->id);
1859                 scsi_remove_device(sdev);
1860                 scsi_device_put(sdev);
1861                 mpt_findImVolumes(ioc);
1862                 break;
1863         }
1864
1865         kfree(ev);
1866         mutex_unlock(&ioc->sas_discovery_mutex);
1867 }
1868
1869 static void
1870 mptscsih_send_sas_event(MPT_ADAPTER *ioc,
1871                 EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *sas_event_data)
1872 {
1873         struct mptsas_hotplug_event *ev;
1874         u32 device_info = le32_to_cpu(sas_event_data->DeviceInfo);
1875         __le64 sas_address;
1876
1877         if ((device_info &
1878              (MPI_SAS_DEVICE_INFO_SSP_TARGET |
1879               MPI_SAS_DEVICE_INFO_STP_TARGET |
1880               MPI_SAS_DEVICE_INFO_SATA_DEVICE )) == 0)
1881                 return;
1882
1883         switch (sas_event_data->ReasonCode) {
1884         case MPI_EVENT_SAS_DEV_STAT_RC_ADDED:
1885         case MPI_EVENT_SAS_DEV_STAT_RC_NOT_RESPONDING:
1886                 ev = kmalloc(sizeof(*ev), GFP_ATOMIC);
1887                 if (!ev) {
1888                         printk(KERN_WARNING "mptsas: lost hotplug event\n");
1889                         break;
1890                 }
1891
1892                 INIT_WORK(&ev->work, mptsas_hotplug_work, ev);
1893                 ev->ioc = ioc;
1894                 ev->handle = le16_to_cpu(sas_event_data->DevHandle);
1895                 ev->parent_handle =
1896                     le16_to_cpu(sas_event_data->ParentDevHandle);
1897                 ev->channel = sas_event_data->Bus;
1898                 ev->id = sas_event_data->TargetID;
1899                 ev->phy_id = sas_event_data->PhyNum;
1900                 memcpy(&sas_address, &sas_event_data->SASAddress,
1901                     sizeof(__le64));
1902                 ev->sas_address = le64_to_cpu(sas_address);
1903                 ev->device_info = device_info;
1904
1905                 if (sas_event_data->ReasonCode &
1906                     MPI_EVENT_SAS_DEV_STAT_RC_ADDED)
1907                         ev->event_type = MPTSAS_ADD_DEVICE;
1908                 else
1909                         ev->event_type = MPTSAS_DEL_DEVICE;
1910                 schedule_work(&ev->work);
1911                 break;
1912         case MPI_EVENT_SAS_DEV_STAT_RC_NO_PERSIST_ADDED:
1913         /*
1914          * Persistent table is full.
1915          */
1916                 INIT_WORK(&ioc->mptscsih_persistTask,
1917                     mptscsih_sas_persist_clear_table,
1918                     (void *)ioc);
1919                 schedule_work(&ioc->mptscsih_persistTask);
1920                 break;
1921         case MPI_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
1922         /* TODO */
1923         case MPI_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
1924         /* TODO */
1925         default:
1926                 break;
1927         }
1928 }
1929
1930 static void
1931 mptscsih_send_raid_event(MPT_ADAPTER *ioc,
1932                 EVENT_DATA_RAID *raid_event_data)
1933 {
1934         struct mptsas_hotplug_event *ev;
1935         RAID_VOL0_STATUS * volumeStatus;
1936
1937         if (ioc->bus_type != SAS)
1938                 return;
1939
1940         ev = kmalloc(sizeof(*ev), GFP_ATOMIC);
1941         if (!ev) {
1942                 printk(KERN_WARNING "mptsas: lost hotplug event\n");
1943                 return;
1944         }
1945
1946         memset(ev,0,sizeof(struct mptsas_hotplug_event));
1947         INIT_WORK(&ev->work, mptsas_hotplug_work, ev);
1948         ev->ioc = ioc;
1949         ev->id = raid_event_data->VolumeID;
1950
1951         switch (raid_event_data->ReasonCode) {
1952         case MPI_EVENT_RAID_RC_PHYSDISK_DELETED:
1953                 ev->event_type = MPTSAS_ADD_DEVICE;
1954                 break;
1955         case MPI_EVENT_RAID_RC_PHYSDISK_CREATED:
1956                 ioc->raid_data.isRaid = 1;
1957                 ev->phys_disk_num_valid = 1;
1958                 ev->phys_disk_num = raid_event_data->PhysDiskNum;
1959                 ev->event_type = MPTSAS_DEL_DEVICE;
1960                 break;
1961         case MPI_EVENT_RAID_RC_VOLUME_DELETED:
1962                 ev->event_type = MPTSAS_DEL_RAID;
1963                 break;
1964         case MPI_EVENT_RAID_RC_VOLUME_CREATED:
1965                 ev->event_type = MPTSAS_ADD_RAID;
1966                 break;
1967         case MPI_EVENT_RAID_RC_VOLUME_STATUS_CHANGED:
1968                 volumeStatus = (RAID_VOL0_STATUS *) &
1969                     raid_event_data->SettingsStatus;
1970                 ev->event_type = (volumeStatus->State ==
1971                     MPI_RAIDVOL0_STATUS_STATE_FAILED) ?
1972                     MPTSAS_DEL_RAID : MPTSAS_ADD_RAID;
1973                 break;
1974         default:
1975                 break;
1976         }
1977         schedule_work(&ev->work);
1978 }
1979
1980 static void
1981 mptscsih_send_discovery(MPT_ADAPTER *ioc,
1982         EVENT_DATA_SAS_DISCOVERY *discovery_data)
1983 {
1984         struct mptsas_discovery_event *ev;
1985
1986         /*
1987          * DiscoveryStatus
1988          *
1989          * This flag will be non-zero when firmware
1990          * kicks off discovery, and return to zero
1991          * once its completed.
1992          */
1993         if (discovery_data->DiscoveryStatus)
1994                 return;
1995
1996         ev = kmalloc(sizeof(*ev), GFP_ATOMIC);
1997         if (!ev)
1998                 return;
1999         memset(ev,0,sizeof(struct mptsas_discovery_event));
2000         INIT_WORK(&ev->work, mptscsih_discovery_work, ev);
2001         ev->ioc = ioc;
2002         schedule_work(&ev->work);
2003 };
2004
2005
2006 static int
2007 mptsas_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *reply)
2008 {
2009         int rc=1;
2010         u8 event = le32_to_cpu(reply->Event) & 0xFF;
2011
2012         if (!ioc->sh)
2013                 goto out;
2014
2015         /*
2016          * sas_discovery_ignore_events
2017          *
2018          * This flag is to prevent anymore processing of
2019          * sas events once mptsas_remove function is called.
2020          */
2021         if (ioc->sas_discovery_ignore_events) {
2022                 rc = mptscsih_event_process(ioc, reply);
2023                 goto out;
2024         }
2025
2026         switch (event) {
2027         case MPI_EVENT_SAS_DEVICE_STATUS_CHANGE:
2028                 mptscsih_send_sas_event(ioc,
2029                         (EVENT_DATA_SAS_DEVICE_STATUS_CHANGE *)reply->Data);
2030                 break;
2031         case MPI_EVENT_INTEGRATED_RAID:
2032                 mptscsih_send_raid_event(ioc,
2033                         (EVENT_DATA_RAID *)reply->Data);
2034                 break;
2035         case MPI_EVENT_PERSISTENT_TABLE_FULL:
2036                 INIT_WORK(&ioc->mptscsih_persistTask,
2037                     mptscsih_sas_persist_clear_table,
2038                     (void *)ioc);
2039                 schedule_work(&ioc->mptscsih_persistTask);
2040                 break;
2041          case MPI_EVENT_SAS_DISCOVERY:
2042                 mptscsih_send_discovery(ioc,
2043                         (EVENT_DATA_SAS_DISCOVERY *)reply->Data);
2044                 break;
2045         default:
2046                 rc = mptscsih_event_process(ioc, reply);
2047                 break;
2048         }
2049  out:
2050
2051         return rc;
2052 }
2053
2054 static int
2055 mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
2056 {
2057         struct Scsi_Host        *sh;
2058         MPT_SCSI_HOST           *hd;
2059         MPT_ADAPTER             *ioc;
2060         unsigned long            flags;
2061         int                      ii;
2062         int                      numSGE = 0;
2063         int                      scale;
2064         int                      ioc_cap;
2065         int                     error=0;
2066         int                     r;
2067
2068         r = mpt_attach(pdev,id);
2069         if (r)
2070                 return r;
2071
2072         ioc = pci_get_drvdata(pdev);
2073         ioc->DoneCtx = mptsasDoneCtx;
2074         ioc->TaskCtx = mptsasTaskCtx;
2075         ioc->InternalCtx = mptsasInternalCtx;
2076
2077         /*  Added sanity check on readiness of the MPT adapter.
2078          */
2079         if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) {
2080                 printk(MYIOC_s_WARN_FMT
2081                   "Skipping because it's not operational!\n",
2082                   ioc->name);
2083                 error = -ENODEV;
2084                 goto out_mptsas_probe;
2085         }
2086
2087         if (!ioc->active) {
2088                 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n",
2089                   ioc->name);
2090                 error = -ENODEV;
2091                 goto out_mptsas_probe;
2092         }
2093
2094         /*  Sanity check - ensure at least 1 port is INITIATOR capable
2095          */
2096         ioc_cap = 0;
2097         for (ii = 0; ii < ioc->facts.NumberOfPorts; ii++) {
2098                 if (ioc->pfacts[ii].ProtocolFlags &
2099                                 MPI_PORTFACTS_PROTOCOL_INITIATOR)
2100                         ioc_cap++;
2101         }
2102
2103         if (!ioc_cap) {
2104                 printk(MYIOC_s_WARN_FMT
2105                         "Skipping ioc=%p because SCSI Initiator mode "
2106                         "is NOT enabled!\n", ioc->name, ioc);
2107                 return 0;
2108         }
2109
2110         sh = scsi_host_alloc(&mptsas_driver_template, sizeof(MPT_SCSI_HOST));
2111         if (!sh) {
2112                 printk(MYIOC_s_WARN_FMT
2113                         "Unable to register controller with SCSI subsystem\n",
2114                         ioc->name);
2115                 error = -1;
2116                 goto out_mptsas_probe;
2117         }
2118
2119         spin_lock_irqsave(&ioc->FreeQlock, flags);
2120
2121         /* Attach the SCSI Host to the IOC structure
2122          */
2123         ioc->sh = sh;
2124
2125         sh->io_port = 0;
2126         sh->n_io_port = 0;
2127         sh->irq = 0;
2128
2129         /* set 16 byte cdb's */
2130         sh->max_cmd_len = 16;
2131
2132         sh->max_id = ioc->pfacts->MaxDevices + 1;
2133
2134         sh->transportt = mptsas_transport_template;
2135
2136         sh->max_lun = MPT_LAST_LUN + 1;
2137         sh->max_channel = 0;
2138         sh->this_id = ioc->pfacts[0].PortSCSIID;
2139
2140         /* Required entry.
2141          */
2142         sh->unique_id = ioc->id;
2143
2144         INIT_LIST_HEAD(&ioc->sas_topology);
2145         mutex_init(&ioc->sas_topology_mutex);
2146         mutex_init(&ioc->sas_discovery_mutex);
2147         mutex_init(&ioc->sas_mgmt.mutex);
2148         init_completion(&ioc->sas_mgmt.done);
2149
2150         /* Verify that we won't exceed the maximum
2151          * number of chain buffers
2152          * We can optimize:  ZZ = req_sz/sizeof(SGE)
2153          * For 32bit SGE's:
2154          *  numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ
2155          *               + (req_sz - 64)/sizeof(SGE)
2156          * A slightly different algorithm is required for
2157          * 64bit SGEs.
2158          */
2159         scale = ioc->req_sz/(sizeof(dma_addr_t) + sizeof(u32));
2160         if (sizeof(dma_addr_t) == sizeof(u64)) {
2161                 numSGE = (scale - 1) *
2162                   (ioc->facts.MaxChainDepth-1) + scale +
2163                   (ioc->req_sz - 60) / (sizeof(dma_addr_t) +
2164                   sizeof(u32));
2165         } else {
2166                 numSGE = 1 + (scale - 1) *
2167                   (ioc->facts.MaxChainDepth-1) + scale +
2168                   (ioc->req_sz - 64) / (sizeof(dma_addr_t) +
2169                   sizeof(u32));
2170         }
2171
2172         if (numSGE < sh->sg_tablesize) {
2173                 /* Reset this value */
2174                 dprintk((MYIOC_s_INFO_FMT
2175                   "Resetting sg_tablesize to %d from %d\n",
2176                   ioc->name, numSGE, sh->sg_tablesize));
2177                 sh->sg_tablesize = numSGE;
2178         }
2179
2180         spin_unlock_irqrestore(&ioc->FreeQlock, flags);
2181
2182         hd = (MPT_SCSI_HOST *) sh->hostdata;
2183         hd->ioc = ioc;
2184
2185         /* SCSI needs scsi_cmnd lookup table!
2186          * (with size equal to req_depth*PtrSz!)
2187          */
2188         hd->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_ATOMIC);
2189         if (!hd->ScsiLookup) {
2190                 error = -ENOMEM;
2191                 goto out_mptsas_probe;
2192         }
2193
2194         dprintk((MYIOC_s_INFO_FMT "ScsiLookup @ %p\n",
2195                  ioc->name, hd->ScsiLookup));
2196
2197         /* Allocate memory for the device structures.
2198          * A non-Null pointer at an offset
2199          * indicates a device exists.
2200          * max_id = 1 + maximum id (hosts.h)
2201          */
2202         hd->Targets = kcalloc(sh->max_id, sizeof(void *), GFP_ATOMIC);
2203         if (!hd->Targets) {
2204                 error = -ENOMEM;
2205                 goto out_mptsas_probe;
2206         }
2207
2208         dprintk((KERN_INFO "  vtarget @ %p\n", hd->Targets));
2209
2210         /* Clear the TM flags
2211          */
2212         hd->tmPending = 0;
2213         hd->tmState = TM_STATE_NONE;
2214         hd->resetPending = 0;
2215         hd->abortSCpnt = NULL;
2216
2217         /* Clear the pointer used to store
2218          * single-threaded commands, i.e., those
2219          * issued during a bus scan, dv and
2220          * configuration pages.
2221          */
2222         hd->cmdPtr = NULL;
2223
2224         /* Initialize this SCSI Hosts' timers
2225          * To use, set the timer expires field
2226          * and add_timer
2227          */
2228         init_timer(&hd->timer);
2229         hd->timer.data = (unsigned long) hd;
2230         hd->timer.function = mptscsih_timer_expired;
2231
2232         hd->mpt_pq_filter = mpt_pq_filter;
2233         ioc->sas_data.ptClear = mpt_pt_clear;
2234
2235         if (ioc->sas_data.ptClear==1) {
2236                 mptbase_sas_persist_operation(
2237                     ioc, MPI_SAS_OP_CLEAR_ALL_PERSISTENT);
2238         }
2239
2240         ddvprintk((MYIOC_s_INFO_FMT
2241                 "mpt_pq_filter %x mpt_pq_filter %x\n",
2242                 ioc->name,
2243                 mpt_pq_filter,
2244                 mpt_pq_filter));
2245
2246         init_waitqueue_head(&hd->scandv_waitq);
2247         hd->scandv_wait_done = 0;
2248         hd->last_queue_full = 0;
2249
2250         error = scsi_add_host(sh, &ioc->pcidev->dev);
2251         if (error) {
2252                 dprintk((KERN_ERR MYNAM
2253                   "scsi_add_host failed\n"));
2254                 goto out_mptsas_probe;
2255         }
2256
2257         mptsas_scan_sas_topology(ioc);
2258
2259         return 0;
2260
2261 out_mptsas_probe:
2262
2263         mptscsih_remove(pdev);
2264         return error;
2265 }
2266
2267 static void __devexit mptsas_remove(struct pci_dev *pdev)
2268 {
2269         MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
2270         struct mptsas_portinfo *p, *n;
2271
2272         ioc->sas_discovery_ignore_events=1;
2273         sas_remove_host(ioc->sh);
2274
2275         mutex_lock(&ioc->sas_topology_mutex);
2276         list_for_each_entry_safe(p, n, &ioc->sas_topology, list) {
2277                 list_del(&p->list);
2278                 if (p->phy_info)
2279                         kfree(p->phy_info);
2280                 kfree(p);
2281         }
2282         mutex_unlock(&ioc->sas_topology_mutex);
2283
2284         mptscsih_remove(pdev);
2285 }
2286
2287 static struct pci_device_id mptsas_pci_table[] = {
2288         { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064,
2289                 PCI_ANY_ID, PCI_ANY_ID },
2290         { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1066,
2291                 PCI_ANY_ID, PCI_ANY_ID },
2292         { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1068,
2293                 PCI_ANY_ID, PCI_ANY_ID },
2294         { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064E,
2295                 PCI_ANY_ID, PCI_ANY_ID },
2296         { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1066E,
2297                 PCI_ANY_ID, PCI_ANY_ID },
2298         { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1068E,
2299                 PCI_ANY_ID, PCI_ANY_ID },
2300         {0}     /* Terminating entry */
2301 };
2302 MODULE_DEVICE_TABLE(pci, mptsas_pci_table);
2303
2304
2305 static struct pci_driver mptsas_driver = {
2306         .name           = "mptsas",
2307         .id_table       = mptsas_pci_table,
2308         .probe          = mptsas_probe,
2309         .remove         = __devexit_p(mptsas_remove),
2310         .shutdown       = mptscsih_shutdown,
2311 #ifdef CONFIG_PM
2312         .suspend        = mptscsih_suspend,
2313         .resume         = mptscsih_resume,
2314 #endif
2315 };
2316
2317 static int __init
2318 mptsas_init(void)
2319 {
2320         show_mptmod_ver(my_NAME, my_VERSION);
2321
2322         mptsas_transport_template =
2323             sas_attach_transport(&mptsas_transport_functions);
2324         if (!mptsas_transport_template)
2325                 return -ENODEV;
2326
2327         mptsasDoneCtx = mpt_register(mptscsih_io_done, MPTSAS_DRIVER);
2328         mptsasTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTSAS_DRIVER);
2329         mptsasInternalCtx =
2330                 mpt_register(mptscsih_scandv_complete, MPTSAS_DRIVER);
2331         mptsasMgmtCtx = mpt_register(mptsas_mgmt_done, MPTSAS_DRIVER);
2332
2333         if (mpt_event_register(mptsasDoneCtx, mptsas_event_process) == 0) {
2334                 devtverboseprintk((KERN_INFO MYNAM
2335                   ": Registered for IOC event notifications\n"));
2336         }
2337
2338         if (mpt_reset_register(mptsasDoneCtx, mptscsih_ioc_reset) == 0) {
2339                 dprintk((KERN_INFO MYNAM
2340                   ": Registered for IOC reset notifications\n"));
2341         }
2342
2343         return pci_register_driver(&mptsas_driver);
2344 }
2345
2346 static void __exit
2347 mptsas_exit(void)
2348 {
2349         pci_unregister_driver(&mptsas_driver);
2350         sas_release_transport(mptsas_transport_template);
2351
2352         mpt_reset_deregister(mptsasDoneCtx);
2353         mpt_event_deregister(mptsasDoneCtx);
2354
2355         mpt_deregister(mptsasMgmtCtx);
2356         mpt_deregister(mptsasInternalCtx);
2357         mpt_deregister(mptsasTaskCtx);
2358         mpt_deregister(mptsasDoneCtx);
2359 }
2360
2361 module_init(mptsas_init);
2362 module_exit(mptsas_exit);