drivers/scsi/mpt2sas/mpt2sas_base.h

   1 /*
   2  * This is the Fusion MPT base driver providing common API layer interface
   3  * for access to MPT (Message Passing Technology) firmware.
   4  *
   5  * This code is based on drivers/scsi/mpt2sas/mpt2_base.h
   6  * Copyright (C) 2007-2008  LSI Corporation
   7  *  (mailto:DL-MPTFusionLinux@lsi.com)
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation; either version 2
  12  * of the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * NO WARRANTY
  20  * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  21  * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  22  * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  23  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  24  * solely responsible for determining the appropriateness of using and
  25  * distributing the Program and assumes all risks associated with its
  26  * exercise of rights under this Agreement, including but not limited to
  27  * the risks and costs of program errors, damage to or loss of data,
  28  * programs or equipment, and unavailability or interruption of operations.
  29
  30  * DISCLAIMER OF LIABILITY
  31  * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  32  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  33  * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  34  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  35  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  36  * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  37  * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  38
  39  * You should have received a copy of the GNU General Public License
  40  * along with this program; if not, write to the Free Software
  41  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  42  * USA.
  43  */
  44
  45 #ifndef MPT2SAS_BASE_H_INCLUDED
  46 #define MPT2SAS_BASE_H_INCLUDED
  47
  48 #include "mpi/mpi2_type.h"
  49 #include "mpi/mpi2.h"
  50 #include "mpi/mpi2_ioc.h"
  51 #include "mpi/mpi2_cnfg.h"
  52 #include "mpi/mpi2_init.h"
  53 #include "mpi/mpi2_raid.h"
  54 #include "mpi/mpi2_tool.h"
  55 #include "mpi/mpi2_sas.h"
  56
  57 #include <scsi/scsi.h>
  58 #include <scsi/scsi_cmnd.h>
  59 #include <scsi/scsi_device.h>
  60 #include <scsi/scsi_host.h>
  61 #include <scsi/scsi_tcq.h>
  62 #include <scsi/scsi_transport_sas.h>
  63 #include <scsi/scsi_dbg.h>
  64
  65 #include "mpt2sas_debug.h"
  66
  67 /* driver versioning info */
  68 #define MPT2SAS_DRIVER_NAME             "mpt2sas"
  69 #define MPT2SAS_AUTHOR  "LSI Corporation <DL-MPTFusionLinux@lsi.com>"
  70 #define MPT2SAS_DESCRIPTION     "LSI MPT Fusion SAS 2.0 Device Driver"
  71 #define MPT2SAS_DRIVER_VERSION          "00.100.11.16"
  72 #define MPT2SAS_MAJOR_VERSION           00
  73 #define MPT2SAS_MINOR_VERSION           100
  74 #define MPT2SAS_BUILD_VERSION           11
  75 #define MPT2SAS_RELEASE_VERSION         16
  76
  77 /*
  78  * Set MPT2SAS_SG_DEPTH value based on user input.
  79  */
  80 #ifdef CONFIG_SCSI_MPT2SAS_MAX_SGE
  81 #if     CONFIG_SCSI_MPT2SAS_MAX_SGE  < 16
  82 #define MPT2SAS_SG_DEPTH       16
  83 #elif CONFIG_SCSI_MPT2SAS_MAX_SGE  > 128
  84 #define MPT2SAS_SG_DEPTH       128
  85 #else
  86 #define MPT2SAS_SG_DEPTH       CONFIG_SCSI_MPT2SAS_MAX_SGE
  87 #endif
  88 #else
  89 #define MPT2SAS_SG_DEPTH       128 /* MAX_HW_SEGMENTS */
  90 #endif
  91
  92
  93 /*
  94  * Generic Defines
  95  */
  96 #define MPT2SAS_SATA_QUEUE_DEPTH        32
  97 #define MPT2SAS_SAS_QUEUE_DEPTH         254
  98 #define MPT2SAS_RAID_QUEUE_DEPTH        128
  99
 100 #define MPT_NAME_LENGTH                 32      /* generic length of strings */
 101 #define MPT_STRING_LENGTH               64
 102
 103 #define MPT_MAX_CALLBACKS               16
 104
 105 #define  CAN_SLEEP                      1
 106 #define  NO_SLEEP                       0
 107
 108 #define INTERNAL_CMDS_COUNT             10      /* reserved cmds */
 109
 110 #define MPI2_HIM_MASK                   0xFFFFFFFF /* mask every bit*/
 111
 112 #define MPT2SAS_INVALID_DEVICE_HANDLE   0xFFFF
 113
 114
 115 /*
 116  * reset phases
 117  */
 118 #define MPT2_IOC_PRE_RESET              1 /* prior to host reset */
 119 #define MPT2_IOC_AFTER_RESET            2 /* just after host reset */
 120 #define MPT2_IOC_DONE_RESET             3 /* links re-initialized */
 121
 122 /*
 123  * logging format
 124  */
 125 #define MPT2SAS_FMT                     "%s: "
 126 #define MPT2SAS_DEBUG_FMT               KERN_DEBUG MPT2SAS_FMT
 127 #define MPT2SAS_INFO_FMT                KERN_INFO MPT2SAS_FMT
 128 #define MPT2SAS_NOTE_FMT                KERN_NOTICE MPT2SAS_FMT
 129 #define MPT2SAS_WARN_FMT                KERN_WARNING MPT2SAS_FMT
 130 #define MPT2SAS_ERR_FMT                 KERN_ERR MPT2SAS_FMT
 131
 132 /*
 133  * per target private data
 134  */
 135 #define MPT_TARGET_FLAGS_RAID_COMPONENT 0x01
 136 #define MPT_TARGET_FLAGS_VOLUME         0x02
 137 #define MPT_TARGET_FLAGS_DELETED        0x04
 138
 139 /**
 140  * struct MPT2SAS_TARGET - starget private hostdata
 141  * @starget: starget object
 142  * @sas_address: target sas address
 143  * @handle: device handle
 144  * @num_luns: number luns
 145  * @flags: MPT_TARGET_FLAGS_XXX flags
 146  * @deleted: target flaged for deletion
 147  * @tm_busy: target is busy with TM request.
 148  */
 149 struct MPT2SAS_TARGET {
 150         struct scsi_target *starget;
 151         u64     sas_address;
 152         u16     handle;
 153         int     num_luns;
 154         u32     flags;
 155         u8      deleted;
 156         u8      tm_busy;
 157 };
 158
 159 /*
 160  * per device private data
 161  */
 162 #define MPT_DEVICE_FLAGS_INIT           0x01
 163 #define MPT_DEVICE_TLR_ON               0x02
 164
 165 /**
 166  * struct MPT2SAS_DEVICE - sdev private hostdata
 167  * @sas_target: starget private hostdata
 168  * @lun: lun number
 169  * @flags: MPT_DEVICE_XXX flags
 170  * @configured_lun: lun is configured
 171  * @block: device is in SDEV_BLOCK state
 172  * @tlr_snoop_check: flag used in determining whether to disable TLR
 173  */
 174 struct MPT2SAS_DEVICE {
 175         struct MPT2SAS_TARGET *sas_target;
 176         unsigned int    lun;
 177         u32     flags;
 178         u8      configured_lun;
 179         u8      block;
 180         u8      tlr_snoop_check;
 181 };
 182
 183 #define MPT2_CMD_NOT_USED       0x8000  /* free */
 184 #define MPT2_CMD_COMPLETE       0x0001  /* completed */
 185 #define MPT2_CMD_PENDING        0x0002  /* pending */
 186 #define MPT2_CMD_REPLY_VALID    0x0004  /* reply is valid */
 187 #define MPT2_CMD_RESET          0x0008  /* host reset dropped the command */
 188
 189 /**
 190  * struct _internal_cmd - internal commands struct
 191  * @mutex: mutex
 192  * @done: completion
 193  * @reply: reply message pointer
 194  * @status: MPT2_CMD_XXX status
 195  * @smid: system message id
 196  */
 197 struct _internal_cmd {
 198         struct mutex mutex;
 199         struct completion done;
 200         void    *reply;
 201         u16     status;
 202         u16     smid;
 203 };
 204
 205 /*
 206  * SAS Topology Structures
 207  */
 208
 209 /**
 210  * struct _sas_device - attached device information
 211  * @list: sas device list
 212  * @starget: starget object
 213  * @sas_address: device sas address
 214  * @device_name: retrieved from the SAS IDENTIFY frame.
 215  * @handle: device handle
 216  * @parent_handle: handle to parent device
 217  * @enclosure_handle: enclosure handle
 218  * @enclosure_logical_id: enclosure logical identifier
 219  * @volume_handle: volume handle (valid when hidden raid member)
 220  * @volume_wwid: volume unique identifier
 221  * @device_info: bitfield provides detailed info about the device
 222  * @id: target id
 223  * @channel: target channel
 224  * @slot: number number
 225  * @hidden_raid_component: set to 1 when this is a raid member
 226  * @responding: used in _scsih_sas_device_mark_responding
 227  */
 228 struct _sas_device {
 229         struct list_head list;
 230         struct scsi_target *starget;
 231         u64     sas_address;
 232         u64     device_name;
 233         u16     handle;
 234         u16     parent_handle;
 235         u16     enclosure_handle;
 236         u64     enclosure_logical_id;
 237         u16     volume_handle;
 238         u64     volume_wwid;
 239         u32     device_info;
 240         int     id;
 241         int     channel;
 242         u16     slot;
 243         u8      hidden_raid_component;
 244         u8      responding;
 245 };
 246
 247 /**
 248  * struct _raid_device - raid volume link list
 249  * @list: sas device list
 250  * @starget: starget object
 251  * @sdev: scsi device struct (volumes are single lun)
 252  * @wwid: unique identifier for the volume
 253  * @handle: device handle
 254  * @id: target id
 255  * @channel: target channel
 256  * @volume_type: the raid level
 257  * @device_info: bitfield provides detailed info about the hidden components
 258  * @num_pds: number of hidden raid components
 259  * @responding: used in _scsih_raid_device_mark_responding
 260  */
 261 struct _raid_device {
 262         struct list_head list;
 263         struct scsi_target *starget;
 264         struct scsi_device *sdev;
 265         u64     wwid;
 266         u16     handle;
 267         int     id;
 268         int     channel;
 269         u8      volume_type;
 270         u32     device_info;
 271         u8      num_pds;
 272         u8      responding;
 273 };
 274
 275 /**
 276  * struct _boot_device - boot device info
 277  * @is_raid: flag to indicate whether this is volume
 278  * @device: holds pointer for either struct _sas_device or
 279  *     struct _raid_device
 280  */
 281 struct _boot_device {
 282         u8 is_raid;
 283         void *device;
 284 };
 285
 286 /**
 287  * struct _sas_port - wide/narrow sas port information
 288  * @port_list: list of ports belonging to expander
 289  * @handle: device handle for this port
 290  * @sas_address: sas address of this port
 291  * @num_phys: number of phys belonging to this port
 292  * @remote_identify: attached device identification
 293  * @rphy: sas transport rphy object
 294  * @port: sas transport wide/narrow port object
 295  * @phy_list: _sas_phy list objects belonging to this port
 296  */
 297 struct _sas_port {
 298         struct list_head port_list;
 299         u16     handle;
 300         u64     sas_address;
 301         u8      num_phys;
 302         struct sas_identify remote_identify;
 303         struct sas_rphy *rphy;
 304         struct sas_port *port;
 305         struct list_head phy_list;
 306 };
 307
 308 /**
 309  * struct _sas_phy - phy information
 310  * @port_siblings: list of phys belonging to a port
 311  * @identify: phy identification
 312  * @remote_identify: attached device identification
 313  * @phy: sas transport phy object
 314  * @phy_id: unique phy id
 315  * @handle: device handle for this phy
 316  * @attached_handle: device handle for attached device
 317  */
 318 struct _sas_phy {
 319         struct list_head port_siblings;
 320         struct sas_identify identify;
 321         struct sas_identify remote_identify;
 322         struct sas_phy *phy;
 323         u8      phy_id;
 324         u16     handle;
 325         u16     attached_handle;
 326 };
 327
 328 /**
 329  * struct _sas_node - sas_host/expander information
 330  * @list: list of expanders
 331  * @parent_dev: parent device class
 332  * @num_phys: number phys belonging to this sas_host/expander
 333  * @sas_address: sas address of this sas_host/expander
 334  * @handle: handle for this sas_host/expander
 335  * @parent_handle: parent handle
 336  * @enclosure_handle: handle for this a member of an enclosure
 337  * @device_info: bitwise defining capabilities of this sas_host/expander
 338  * @responding: used in _scsih_expander_device_mark_responding
 339  * @phy: a list of phys that make up this sas_host/expander
 340  * @sas_port_list: list of ports attached to this sas_host/expander
 341  */
 342 struct _sas_node {
 343         struct list_head list;
 344         struct device *parent_dev;
 345         u8      num_phys;
 346         u64     sas_address;
 347         u16     handle;
 348         u16     parent_handle;
 349         u16     enclosure_handle;
 350         u64     enclosure_logical_id;
 351         u8      responding;
 352         struct  _sas_phy *phy;
 353         struct list_head sas_port_list;
 354 };
 355
 356 /**
 357  * enum reset_type - reset state
 358  * @FORCE_BIG_HAMMER: issue diagnostic reset
 359  * @SOFT_RESET: issue message_unit_reset, if fails to to big hammer
 360  */
 361 enum reset_type {
 362         FORCE_BIG_HAMMER,
 363         SOFT_RESET,
 364 };
 365
 366 /**
 367  * struct request_tracker - firmware request tracker
 368  * @smid: system message id
 369  * @scmd: scsi request pointer
 370  * @cb_idx: callback index
 371  * @chain_list: list of chains associated to this IO
 372  * @tracker_list: list of free request (ioc->free_list)
 373  */
 374 struct request_tracker {
 375         u16     smid;
 376         struct scsi_cmnd *scmd;
 377         u8      cb_idx;
 378         struct list_head tracker_list;
 379 };
 380
 381 typedef void (*MPT_ADD_SGE)(void *paddr, u32 flags_length, dma_addr_t dma_addr);
 382
 383 /**
 384  * struct MPT2SAS_ADAPTER - per adapter struct
 385  * @list: ioc_list
 386  * @shost: shost object
 387  * @id: unique adapter id
 388  * @pci_irq: irq number
 389  * @name: generic ioc string
 390  * @tmp_string: tmp string used for logging
 391  * @pdev: pci pdev object
 392  * @chip: memory mapped register space
 393  * @chip_phys: physical addrss prior to mapping
 394  * @pio_chip: I/O mapped register space
 395  * @logging_level: see mpt2sas_debug.h
 396  * @ir_firmware: IR firmware present
 397  * @bars: bitmask of BAR's that must be configured
 398  * @mask_interrupts: ignore interrupt
 399  * @fault_reset_work_q_name: fw fault work queue
 400  * @fault_reset_work_q: ""
 401  * @fault_reset_work: ""
 402  * @firmware_event_name: fw event work queue
 403  * @firmware_event_thread: ""
 404  * @fw_events_off: flag to turn off fw event handling
 405  * @fw_event_lock:
 406  * @fw_event_list: list of fw events
 407  * @aen_event_read_flag: event log was read
 408  * @broadcast_aen_busy: broadcast aen waiting to be serviced
 409  * @ioc_reset_in_progress: host reset in progress
 410  * @ioc_reset_in_progress_lock:
 411  * @ioc_link_reset_in_progress: phy/hard reset in progress
 412  * @ignore_loginfos: ignore loginfos during task managment
 413  * @remove_host: flag for when driver unloads, to avoid sending dev resets
 414  * @wait_for_port_enable_to_complete:
 415  * @msix_enable: flag indicating msix is enabled
 416  * @msix_vector_count: number msix vectors
 417  * @msix_table: virt address to the msix table
 418  * @msix_table_backup: backup msix table
 419  * @scsi_io_cb_idx: shost generated commands
 420  * @tm_cb_idx: task management commands
 421  * @transport_cb_idx: transport internal commands
 422  * @ctl_cb_idx: clt internal commands
 423  * @base_cb_idx: base internal commands
 424  * @config_cb_idx: base internal commands
 425  * @base_cmds:
 426  * @transport_cmds:
 427  * @tm_cmds:
 428  * @ctl_cmds:
 429  * @config_cmds:
 430  * @base_add_sg_single: handler for either 32/64 bit sgl's
 431  * @event_type: bits indicating which events to log
 432  * @event_context: unique id for each logged event
 433  * @event_log: event log pointer
 434  * @event_masks: events that are masked
 435  * @facts: static facts data
 436  * @pfacts: static port facts data
 437  * @manu_pg0: static manufacturing page 0
 438  * @bios_pg2: static bios page 2
 439  * @bios_pg3: static bios page 3
 440  * @ioc_pg8: static ioc page 8
 441  * @iounit_pg0: static iounit page 0
 442  * @iounit_pg1: static iounit page 1
 443  * @sas_hba: sas host object
 444  * @sas_expander_list: expander object list
 445  * @sas_node_lock:
 446  * @sas_device_list: sas device object list
 447  * @sas_device_init_list: sas device object list (used only at init time)
 448  * @sas_device_lock:
 449  * @io_missing_delay: time for IO completed by fw when PDR enabled
 450  * @device_missing_delay: time for device missing by fw when PDR enabled
 451  * @config_page_sz: config page size
 452  * @config_page: reserve memory for config page payload
 453  * @config_page_dma:
 454  * @sge_size: sg element size for either 32/64 bit
 455  * @request_depth: hba request queue depth
 456  * @request_sz: per request frame size
 457  * @request: pool of request frames
 458  * @request_dma:
 459  * @request_dma_sz:
 460  * @scsi_lookup: firmware request tracker list
 461  * @scsi_lookup_lock:
 462  * @free_list: free list of request
 463  * @chain: pool of chains
 464  * @pending_io_count:
 465  * @reset_wq:
 466  * @chain_dma:
 467  * @max_sges_in_main_message: number sg elements in main message
 468  * @max_sges_in_chain_message: number sg elements per chain
 469  * @chains_needed_per_io: max chains per io
 470  * @chain_offset_value_for_main_message: location 1st sg in main
 471  * @chain_depth: total chains allocated
 472  * @sense: pool of sense
 473  * @sense_dma:
 474  * @sense_dma_pool:
 475  * @reply_depth: hba reply queue depth:
 476  * @reply_sz: per reply frame size:
 477  * @reply: pool of replys:
 478  * @reply_dma:
 479  * @reply_dma_pool:
 480  * @reply_free_queue_depth: reply free depth
 481  * @reply_free: pool for reply free queue (32 bit addr)
 482  * @reply_free_dma:
 483  * @reply_free_dma_pool:
 484  * @reply_free_host_index: tail index in pool to insert free replys
 485  * @reply_post_queue_depth: reply post queue depth
 486  * @reply_post_free: pool for reply post (64bit descriptor)
 487  * @reply_post_free_dma:
 488  * @reply_post_free_dma_pool:
 489  * @reply_post_host_index: head index in the pool where FW completes IO
 490  */
 491 struct MPT2SAS_ADAPTER {
 492         struct list_head list;
 493         struct Scsi_Host *shost;
 494         u8              id;
 495         u32             pci_irq;
 496         char            name[MPT_NAME_LENGTH];
 497         char            tmp_string[MPT_STRING_LENGTH];
 498         struct pci_dev  *pdev;
 499         Mpi2SystemInterfaceRegs_t __iomem *chip;
 500         unsigned long   chip_phys;
 501         unsigned long   pio_chip;
 502         int             logging_level;
 503         u8              ir_firmware;
 504         int             bars;
 505         u8              mask_interrupts;
 506
 507         /* fw fault handler */
 508         char            fault_reset_work_q_name[20];
 509         struct workqueue_struct *fault_reset_work_q;
 510         struct delayed_work fault_reset_work;
 511
 512         /* fw event handler */
 513         char            firmware_event_name[20];
 514         struct workqueue_struct *firmware_event_thread;
 515         u8              fw_events_off;
 516         spinlock_t      fw_event_lock;
 517         struct list_head fw_event_list;
 518
 519          /* misc flags */
 520         int             aen_event_read_flag;
 521         u8              broadcast_aen_busy;
 522         u8              ioc_reset_in_progress;
 523         u8              shost_recovery;
 524         spinlock_t      ioc_reset_in_progress_lock;
 525         u8              ioc_link_reset_in_progress;
 526         u8              ignore_loginfos;
 527         u8              remove_host;
 528         u8              wait_for_port_enable_to_complete;
 529
 530         u8              msix_enable;
 531         u16             msix_vector_count;
 532         u32             *msix_table;
 533         u32             *msix_table_backup;
 534
 535         /* internal commands, callback index */
 536         u8              scsi_io_cb_idx;
 537         u8              tm_cb_idx;
 538         u8              transport_cb_idx;
 539         u8              ctl_cb_idx;
 540         u8              base_cb_idx;
 541         u8              config_cb_idx;
 542         struct _internal_cmd base_cmds;
 543         struct _internal_cmd transport_cmds;
 544         struct _internal_cmd tm_cmds;
 545         struct _internal_cmd ctl_cmds;
 546         struct _internal_cmd config_cmds;
 547
 548         MPT_ADD_SGE     base_add_sg_single;
 549
 550         /* event log */
 551         u32             event_type[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
 552         u32             event_context;
 553         void            *event_log;
 554         u32             event_masks[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
 555
 556         /* static config pages */
 557         Mpi2IOCFactsReply_t facts;
 558         Mpi2PortFactsReply_t *pfacts;
 559         Mpi2ManufacturingPage0_t manu_pg0;
 560         Mpi2BiosPage2_t bios_pg2;
 561         Mpi2BiosPage3_t bios_pg3;
 562         Mpi2IOCPage8_t ioc_pg8;
 563         Mpi2IOUnitPage0_t iounit_pg0;
 564         Mpi2IOUnitPage1_t iounit_pg1;
 565
 566         struct _boot_device req_boot_device;
 567         struct _boot_device req_alt_boot_device;
 568         struct _boot_device current_boot_device;
 569
 570         /* sas hba, expander, and device list */
 571         struct _sas_node sas_hba;
 572         struct list_head sas_expander_list;
 573         spinlock_t      sas_node_lock;
 574         struct list_head sas_device_list;
 575         struct list_head sas_device_init_list;
 576         spinlock_t      sas_device_lock;
 577         struct list_head raid_device_list;
 578         spinlock_t      raid_device_lock;
 579         u8              io_missing_delay;
 580         u16             device_missing_delay;
 581         int             sas_id;
 582
 583         /* config page */
 584         u16             config_page_sz;
 585         void            *config_page;
 586         dma_addr_t      config_page_dma;
 587
 588         /* request */
 589         u16             sge_size;
 590         u16             request_depth;
 591         u16             request_sz;
 592         u8              *request;
 593         dma_addr_t      request_dma;
 594         u32             request_dma_sz;
 595         struct request_tracker *scsi_lookup;
 596         spinlock_t scsi_lookup_lock;
 597         struct list_head free_list;
 598         int             pending_io_count;
 599         wait_queue_head_t reset_wq;
 600
 601         /* chain */
 602         u8              *chain;
 603         dma_addr_t      chain_dma;
 604         u16             max_sges_in_main_message;
 605         u16             max_sges_in_chain_message;
 606         u16             chains_needed_per_io;
 607         u16             chain_offset_value_for_main_message;
 608         u16             chain_depth;
 609
 610         /* sense */
 611         u8              *sense;
 612         dma_addr_t      sense_dma;
 613         struct dma_pool *sense_dma_pool;
 614
 615         /* reply */
 616         u16             reply_sz;
 617         u8              *reply;
 618         dma_addr_t      reply_dma;
 619         struct dma_pool *reply_dma_pool;
 620
 621         /* reply free queue */
 622         u16             reply_free_queue_depth;
 623         u32             *reply_free;
 624         dma_addr_t      reply_free_dma;
 625         struct dma_pool *reply_free_dma_pool;
 626         u32             reply_free_host_index;
 627
 628         /* reply post queue */
 629         u16             reply_post_queue_depth;
 630         Mpi2ReplyDescriptorsUnion_t *reply_post_free;
 631         dma_addr_t      reply_post_free_dma;
 632         struct dma_pool *reply_post_free_dma_pool;
 633         u32             reply_post_host_index;
 634
 635         /* diag buffer support */
 636         u8              *diag_buffer[MPI2_DIAG_BUF_TYPE_COUNT];
 637         u32             diag_buffer_sz[MPI2_DIAG_BUF_TYPE_COUNT];
 638         dma_addr_t      diag_buffer_dma[MPI2_DIAG_BUF_TYPE_COUNT];
 639         u8              diag_buffer_status[MPI2_DIAG_BUF_TYPE_COUNT];
 640         u32             unique_id[MPI2_DIAG_BUF_TYPE_COUNT];
 641         u32             product_specific[MPI2_DIAG_BUF_TYPE_COUNT][23];
 642         u32             diagnostic_flags[MPI2_DIAG_BUF_TYPE_COUNT];
 643 };
 644
 645 typedef void (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID,
 646     u32 reply);
 647
 648
 649 /* base shared API */
 650 extern struct list_head mpt2sas_ioc_list;
 651
 652 int mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc);
 653 void mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc);
 654 int mpt2sas_base_map_resources(struct MPT2SAS_ADAPTER *ioc);
 655 void mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc);
 656 int mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
 657     enum reset_type type);
 658
 659 void *mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid);
 660 void *mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid);
 661 void mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr);
 662 dma_addr_t mpt2sas_base_get_msg_frame_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid);
 663 dma_addr_t mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid);
 664
 665 u16 mpt2sas_base_get_smid(struct MPT2SAS_ADAPTER *ioc, u8 cb_idx);
 666 void mpt2sas_base_free_smid(struct MPT2SAS_ADAPTER *ioc, u16 smid);
 667 void mpt2sas_base_put_smid_scsi_io(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 vf_id,
 668     u16 handle);
 669 void mpt2sas_base_put_smid_hi_priority(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 vf_id);
 670 void mpt2sas_base_put_smid_target_assist(struct MPT2SAS_ADAPTER *ioc, u16 smid,
 671     u8 vf_id, u16 io_index);
 672 void mpt2sas_base_put_smid_default(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 vf_id);
 673 void mpt2sas_base_initialize_callback_handler(void);
 674 u8 mpt2sas_base_register_callback_handler(MPT_CALLBACK cb_func);
 675 void mpt2sas_base_release_callback_handler(u8 cb_idx);
 676
 677 void mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply);
 678 void *mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr);
 679
 680 u32 mpt2sas_base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked);
 681
 682 void mpt2sas_base_fault_info(struct MPT2SAS_ADAPTER *ioc , u16 fault_code);
 683 int mpt2sas_base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc,
 684     Mpi2SasIoUnitControlReply_t *mpi_reply, Mpi2SasIoUnitControlRequest_t
 685     *mpi_request);
 686 int mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc,
 687     Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request);
 688 void mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_type);
 689
 690 /* scsih shared API */
 691 void mpt2sas_scsih_issue_tm(struct MPT2SAS_ADAPTER *ioc, u16 handle, uint lun,
 692     u8 type, u16 smid_task, ulong timeout);
 693 void mpt2sas_scsih_set_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle);
 694 void mpt2sas_scsih_clear_tm_flag(struct MPT2SAS_ADAPTER *ioc, u16 handle);
 695 struct _sas_node *mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *ioc,
 696     u16 handle);
 697 struct _sas_node *mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER
 698     *ioc, u64 sas_address);
 699 struct _sas_device *mpt2sas_scsih_sas_device_find_by_sas_address(
 700     struct MPT2SAS_ADAPTER *ioc, u64 sas_address);
 701
 702 void mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply);
 703 void mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase);
 704
 705 /* config shared API */
 706 void mpt2sas_config_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply);
 707 int mpt2sas_config_get_number_hba_phys(struct MPT2SAS_ADAPTER *ioc, u8 *num_phys);
 708 int mpt2sas_config_get_manufacturing_pg0(struct MPT2SAS_ADAPTER *ioc,
 709     Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage0_t *config_page);
 710 int mpt2sas_config_get_bios_pg2(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 711     *mpi_reply, Mpi2BiosPage2_t *config_page);
 712 int mpt2sas_config_get_bios_pg3(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 713     *mpi_reply, Mpi2BiosPage3_t *config_page);
 714 int mpt2sas_config_get_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 715     *mpi_reply, Mpi2IOUnitPage0_t *config_page);
 716 int mpt2sas_config_get_sas_device_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 717     *mpi_reply, Mpi2SasDevicePage0_t *config_page, u32 form, u32 handle);
 718 int mpt2sas_config_get_sas_device_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 719     *mpi_reply, Mpi2SasDevicePage1_t *config_page, u32 form, u32 handle);
 720 int mpt2sas_config_get_sas_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 721     *mpi_reply, Mpi2SasIOUnitPage0_t *config_page, u16 sz);
 722 int mpt2sas_config_get_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 723     *mpi_reply, Mpi2IOUnitPage1_t *config_page);
 724 int mpt2sas_config_set_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 725     *mpi_reply, Mpi2IOUnitPage1_t config_page);
 726 int mpt2sas_config_get_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 727     *mpi_reply, Mpi2SasIOUnitPage1_t *config_page, u16 sz);
 728 int mpt2sas_config_get_ioc_pg8(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 729     *mpi_reply, Mpi2IOCPage8_t *config_page);
 730 int mpt2sas_config_get_expander_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 731     *mpi_reply, Mpi2ExpanderPage0_t *config_page, u32 form, u32 handle);
 732 int mpt2sas_config_get_expander_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 733     *mpi_reply, Mpi2ExpanderPage1_t *config_page, u32 phy_number, u16 handle);
 734 int mpt2sas_config_get_enclosure_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 735     *mpi_reply, Mpi2SasEnclosurePage0_t *config_page, u32 form, u32 handle);
 736 int mpt2sas_config_get_phy_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 737     *mpi_reply, Mpi2SasPhyPage0_t *config_page, u32 phy_number);
 738 int mpt2sas_config_get_phy_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 739     *mpi_reply, Mpi2SasPhyPage1_t *config_page, u32 phy_number);
 740 int mpt2sas_config_get_raid_volume_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 741     *mpi_reply, Mpi2RaidVolPage1_t *config_page, u32 form, u32 handle);
 742 int mpt2sas_config_get_number_pds(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 *num_pds);
 743 int mpt2sas_config_get_raid_volume_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 744     *mpi_reply, Mpi2RaidVolPage0_t *config_page, u32 form, u32 handle, u16 sz);
 745 int mpt2sas_config_get_phys_disk_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
 746     *mpi_reply, Mpi2RaidPhysDiskPage0_t *config_page, u32 form,
 747     u32 form_specific);
 748 int mpt2sas_config_get_volume_handle(struct MPT2SAS_ADAPTER *ioc, u16 pd_handle,
 749     u16 *volume_handle);
 750 int mpt2sas_config_get_volume_wwid(struct MPT2SAS_ADAPTER *ioc, u16 volume_handle,
 751     u64 *wwid);
 752
 753 /* ctl shared API */
 754 extern struct device_attribute *mpt2sas_host_attrs[];
 755 extern struct device_attribute *mpt2sas_dev_attrs[];
 756 void mpt2sas_ctl_init(void);
 757 void mpt2sas_ctl_exit(void);
 758 void mpt2sas_ctl_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply);
 759 void mpt2sas_ctl_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase);
 760 void mpt2sas_ctl_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID, u32 reply);
 761 void mpt2sas_ctl_add_to_event_log(struct MPT2SAS_ADAPTER *ioc,
 762     Mpi2EventNotificationReply_t *mpi_reply);
 763
 764 /* transport shared API */
 765 void mpt2sas_transport_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 VF_ID, u32 reply);
 766 struct _sas_port *mpt2sas_transport_port_add(struct MPT2SAS_ADAPTER *ioc,
 767     u16 handle, u16 parent_handle);
 768 void mpt2sas_transport_port_remove(struct MPT2SAS_ADAPTER *ioc, u64 sas_address,
 769     u16 parent_handle);
 770 int mpt2sas_transport_add_host_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
 771     *mpt2sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev);
 772 int mpt2sas_transport_add_expander_phy(struct MPT2SAS_ADAPTER *ioc, struct _sas_phy
 773     *mpt2sas_phy, Mpi2ExpanderPage1_t expander_pg1, struct device *parent_dev);
 774 void mpt2sas_transport_update_phy_link_change(struct MPT2SAS_ADAPTER *ioc, u16 handle,
 775    u16 attached_handle, u8 phy_number, u8 link_rate);
 776 extern struct sas_function_template mpt2sas_transport_functions;
 777 extern struct scsi_transport_template *mpt2sas_transport_template;
 778
 779 #endif /* MPT2SAS_BASE_H_INCLUDED */