drivers/scsi/mpt3sas/mpt3sas_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/mpt3sas/mpt3sas_base.h
   6  * Copyright (C) 2012-2014  LSI Corporation
   7  * Copyright (C) 2013-2014 Avago Technologies
   8  *  (mailto: MPT-FusionLinux.pdl@avagotech.com)
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * NO WARRANTY
  21  * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
  22  * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  23  * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
  24  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
  25  * solely responsible for determining the appropriateness of using and
  26  * distributing the Program and assumes all risks associated with its
  27  * exercise of rights under this Agreement, including but not limited to
  28  * the risks and costs of program errors, damage to or loss of data,
  29  * programs or equipment, and unavailability or interruption of operations.
  30
  31  * DISCLAIMER OF LIABILITY
  32  * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
  33  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  34  * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
  35  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  36  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  37  * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
  38  * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
  39
  40  * You should have received a copy of the GNU General Public License
  41  * along with this program; if not, write to the Free Software
  42  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  43  * USA.
  44  */
  45
  46 #ifndef MPT3SAS_BASE_H_INCLUDED
  47 #define MPT3SAS_BASE_H_INCLUDED
  48
  49 #include "mpi/mpi2_type.h"
  50 #include "mpi/mpi2.h"
  51 #include "mpi/mpi2_ioc.h"
  52 #include "mpi/mpi2_cnfg.h"
  53 #include "mpi/mpi2_init.h"
  54 #include "mpi/mpi2_raid.h"
  55 #include "mpi/mpi2_tool.h"
  56 #include "mpi/mpi2_sas.h"
  57
  58 #include <scsi/scsi.h>
  59 #include <scsi/scsi_cmnd.h>
  60 #include <scsi/scsi_device.h>
  61 #include <scsi/scsi_host.h>
  62 #include <scsi/scsi_tcq.h>
  63 #include <scsi/scsi_transport_sas.h>
  64 #include <scsi/scsi_dbg.h>
  65 #include <scsi/scsi_eh.h>
  66 #include <linux/pci.h>
  67 #include <linux/poll.h>
  68
  69 #include "mpt3sas_debug.h"
  70 #include "mpt3sas_trigger_diag.h"
  71
  72 /* driver versioning info */
  73 #define MPT3SAS_DRIVER_NAME             "mpt3sas"
  74 #define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>"
  75 #define MPT3SAS_DESCRIPTION     "LSI MPT Fusion SAS 3.0 Device Driver"
  76 #define MPT3SAS_DRIVER_VERSION          "15.100.00.00"
  77 #define MPT3SAS_MAJOR_VERSION           15
  78 #define MPT3SAS_MINOR_VERSION           100
  79 #define MPT3SAS_BUILD_VERSION           0
  80 #define MPT3SAS_RELEASE_VERSION 00
  81
  82 #define MPT2SAS_DRIVER_NAME             "mpt2sas"
  83 #define MPT2SAS_DESCRIPTION     "LSI MPT Fusion SAS 2.0 Device Driver"
  84 #define MPT2SAS_DRIVER_VERSION          "20.102.00.00"
  85 #define MPT2SAS_MAJOR_VERSION           20
  86 #define MPT2SAS_MINOR_VERSION           102
  87 #define MPT2SAS_BUILD_VERSION           0
  88 #define MPT2SAS_RELEASE_VERSION 00
  89
  90 /*
  91  * Set MPT3SAS_SG_DEPTH value based on user input.
  92  */
  93 #define MPT_MAX_PHYS_SEGMENTS   SG_CHUNK_SIZE
  94 #define MPT_MIN_PHYS_SEGMENTS   16
  95
  96 #ifdef CONFIG_SCSI_MPT3SAS_MAX_SGE
  97 #define MPT3SAS_SG_DEPTH                CONFIG_SCSI_MPT3SAS_MAX_SGE
  98 #else
  99 #define MPT3SAS_SG_DEPTH                MPT_MAX_PHYS_SEGMENTS
 100 #endif
 101
 102 #ifdef CONFIG_SCSI_MPT2SAS_MAX_SGE
 103 #define MPT2SAS_SG_DEPTH                CONFIG_SCSI_MPT2SAS_MAX_SGE
 104 #else
 105 #define MPT2SAS_SG_DEPTH                MPT_MAX_PHYS_SEGMENTS
 106 #endif
 107
 108 /*
 109  * Generic Defines
 110  */
 111 #define MPT3SAS_SATA_QUEUE_DEPTH        32
 112 #define MPT3SAS_SAS_QUEUE_DEPTH         254
 113 #define MPT3SAS_RAID_QUEUE_DEPTH        128
 114
 115 #define MPT3SAS_RAID_MAX_SECTORS        8192
 116
 117 #define MPT_NAME_LENGTH                 32      /* generic length of strings */
 118 #define MPT_STRING_LENGTH               64
 119
 120 #define MPT_MAX_CALLBACKS               32
 121
 122 #define INTERNAL_CMDS_COUNT             10      /* reserved cmds */
 123 /* reserved for issuing internally framed scsi io cmds */
 124 #define INTERNAL_SCSIIO_CMDS_COUNT      3
 125
 126 #define MPI3_HIM_MASK                   0xFFFFFFFF /* mask every bit*/
 127
 128 #define MPT3SAS_INVALID_DEVICE_HANDLE   0xFFFF
 129
 130 #define MAX_CHAIN_ELEMT_SZ              16
 131 #define DEFAULT_NUM_FWCHAIN_ELEMTS      8
 132
 133 /*
 134  * reset phases
 135  */
 136 #define MPT3_IOC_PRE_RESET              1 /* prior to host reset */
 137 #define MPT3_IOC_AFTER_RESET            2 /* just after host reset */
 138 #define MPT3_IOC_DONE_RESET             3 /* links re-initialized */
 139
 140 /*
 141  * logging format
 142  */
 143 #define MPT3SAS_FMT                     "%s: "
 144
 145 /*
 146  *  WarpDrive Specific Log codes
 147  */
 148
 149 #define MPT2_WARPDRIVE_LOGENTRY         (0x8002)
 150 #define MPT2_WARPDRIVE_LC_SSDT                  (0x41)
 151 #define MPT2_WARPDRIVE_LC_SSDLW         (0x43)
 152 #define MPT2_WARPDRIVE_LC_SSDLF         (0x44)
 153 #define MPT2_WARPDRIVE_LC_BRMF                  (0x4D)
 154
 155 /*
 156  * per target private data
 157  */
 158 #define MPT_TARGET_FLAGS_RAID_COMPONENT 0x01
 159 #define MPT_TARGET_FLAGS_VOLUME         0x02
 160 #define MPT_TARGET_FLAGS_DELETED        0x04
 161 #define MPT_TARGET_FASTPATH_IO          0x08
 162
 163 #define SAS2_PCI_DEVICE_B0_REVISION     (0x01)
 164 #define SAS3_PCI_DEVICE_C0_REVISION     (0x02)
 165
 166 /*
 167  * Intel HBA branding
 168  */
 169 #define MPT2SAS_INTEL_RMS25JB080_BRANDING    \
 170         "Intel(R) Integrated RAID Module RMS25JB080"
 171 #define MPT2SAS_INTEL_RMS25JB040_BRANDING    \
 172         "Intel(R) Integrated RAID Module RMS25JB040"
 173 #define MPT2SAS_INTEL_RMS25KB080_BRANDING    \
 174         "Intel(R) Integrated RAID Module RMS25KB080"
 175 #define MPT2SAS_INTEL_RMS25KB040_BRANDING    \
 176         "Intel(R) Integrated RAID Module RMS25KB040"
 177 #define MPT2SAS_INTEL_RMS25LB040_BRANDING       \
 178         "Intel(R) Integrated RAID Module RMS25LB040"
 179 #define MPT2SAS_INTEL_RMS25LB080_BRANDING       \
 180         "Intel(R) Integrated RAID Module RMS25LB080"
 181 #define MPT2SAS_INTEL_RMS2LL080_BRANDING        \
 182         "Intel Integrated RAID Module RMS2LL080"
 183 #define MPT2SAS_INTEL_RMS2LL040_BRANDING        \
 184         "Intel Integrated RAID Module RMS2LL040"
 185 #define MPT2SAS_INTEL_RS25GB008_BRANDING       \
 186         "Intel(R) RAID Controller RS25GB008"
 187 #define MPT2SAS_INTEL_SSD910_BRANDING          \
 188         "Intel(R) SSD 910 Series"
 189
 190 #define MPT3SAS_INTEL_RMS3JC080_BRANDING       \
 191         "Intel(R) Integrated RAID Module RMS3JC080"
 192 #define MPT3SAS_INTEL_RS3GC008_BRANDING       \
 193         "Intel(R) RAID Controller RS3GC008"
 194 #define MPT3SAS_INTEL_RS3FC044_BRANDING       \
 195         "Intel(R) RAID Controller RS3FC044"
 196 #define MPT3SAS_INTEL_RS3UC080_BRANDING       \
 197         "Intel(R) RAID Controller RS3UC080"
 198
 199 /*
 200  * Intel HBA SSDIDs
 201  */
 202 #define MPT2SAS_INTEL_RMS25JB080_SSDID          0x3516
 203 #define MPT2SAS_INTEL_RMS25JB040_SSDID          0x3517
 204 #define MPT2SAS_INTEL_RMS25KB080_SSDID          0x3518
 205 #define MPT2SAS_INTEL_RMS25KB040_SSDID          0x3519
 206 #define MPT2SAS_INTEL_RMS25LB040_SSDID          0x351A
 207 #define MPT2SAS_INTEL_RMS25LB080_SSDID          0x351B
 208 #define MPT2SAS_INTEL_RMS2LL080_SSDID           0x350E
 209 #define MPT2SAS_INTEL_RMS2LL040_SSDID           0x350F
 210 #define MPT2SAS_INTEL_RS25GB008_SSDID           0x3000
 211 #define MPT2SAS_INTEL_SSD910_SSDID              0x3700
 212
 213 #define MPT3SAS_INTEL_RMS3JC080_SSDID           0x3521
 214 #define MPT3SAS_INTEL_RS3GC008_SSDID            0x3522
 215 #define MPT3SAS_INTEL_RS3FC044_SSDID            0x3523
 216 #define MPT3SAS_INTEL_RS3UC080_SSDID            0x3524
 217
 218 /*
 219  * Dell HBA branding
 220  */
 221 #define MPT2SAS_DELL_BRANDING_SIZE                 32
 222
 223 #define MPT2SAS_DELL_6GBPS_SAS_HBA_BRANDING        "Dell 6Gbps SAS HBA"
 224 #define MPT2SAS_DELL_PERC_H200_ADAPTER_BRANDING    "Dell PERC H200 Adapter"
 225 #define MPT2SAS_DELL_PERC_H200_INTEGRATED_BRANDING "Dell PERC H200 Integrated"
 226 #define MPT2SAS_DELL_PERC_H200_MODULAR_BRANDING    "Dell PERC H200 Modular"
 227 #define MPT2SAS_DELL_PERC_H200_EMBEDDED_BRANDING   "Dell PERC H200 Embedded"
 228 #define MPT2SAS_DELL_PERC_H200_BRANDING            "Dell PERC H200"
 229 #define MPT2SAS_DELL_6GBPS_SAS_BRANDING            "Dell 6Gbps SAS"
 230
 231 #define MPT3SAS_DELL_12G_HBA_BRANDING       \
 232         "Dell 12Gbps HBA"
 233
 234 /*
 235  * Dell HBA SSDIDs
 236  */
 237 #define MPT2SAS_DELL_6GBPS_SAS_HBA_SSDID        0x1F1C
 238 #define MPT2SAS_DELL_PERC_H200_ADAPTER_SSDID    0x1F1D
 239 #define MPT2SAS_DELL_PERC_H200_INTEGRATED_SSDID 0x1F1E
 240 #define MPT2SAS_DELL_PERC_H200_MODULAR_SSDID    0x1F1F
 241 #define MPT2SAS_DELL_PERC_H200_EMBEDDED_SSDID   0x1F20
 242 #define MPT2SAS_DELL_PERC_H200_SSDID            0x1F21
 243 #define MPT2SAS_DELL_6GBPS_SAS_SSDID            0x1F22
 244
 245 #define MPT3SAS_DELL_12G_HBA_SSDID              0x1F46
 246
 247 /*
 248  * Cisco HBA branding
 249  */
 250 #define MPT3SAS_CISCO_12G_8E_HBA_BRANDING               \
 251         "Cisco 9300-8E 12G SAS HBA"
 252 #define MPT3SAS_CISCO_12G_8I_HBA_BRANDING               \
 253         "Cisco 9300-8i 12G SAS HBA"
 254 #define MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING    \
 255         "Cisco 12G Modular SAS Pass through Controller"
 256 #define MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_BRANDING         \
 257         "UCS C3X60 12G SAS Pass through Controller"
 258 /*
 259  * Cisco HBA SSSDIDs
 260  */
 261 #define MPT3SAS_CISCO_12G_8E_HBA_SSDID  0x14C
 262 #define MPT3SAS_CISCO_12G_8I_HBA_SSDID  0x154
 263 #define MPT3SAS_CISCO_12G_AVILA_HBA_SSDID  0x155
 264 #define MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_SSDID  0x156
 265
 266 /*
 267  * status bits for ioc->diag_buffer_status
 268  */
 269 #define MPT3_DIAG_BUFFER_IS_REGISTERED  (0x01)
 270 #define MPT3_DIAG_BUFFER_IS_RELEASED    (0x02)
 271 #define MPT3_DIAG_BUFFER_IS_DIAG_RESET  (0x04)
 272
 273 /*
 274  * HP HBA branding
 275  */
 276 #define MPT2SAS_HP_3PAR_SSVID                0x1590
 277
 278 #define MPT2SAS_HP_2_4_INTERNAL_BRANDING        \
 279         "HP H220 Host Bus Adapter"
 280 #define MPT2SAS_HP_2_4_EXTERNAL_BRANDING        \
 281         "HP H221 Host Bus Adapter"
 282 #define MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_BRANDING   \
 283         "HP H222 Host Bus Adapter"
 284 #define MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_BRANDING       \
 285         "HP H220i Host Bus Adapter"
 286 #define MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_BRANDING       \
 287         "HP H210i Host Bus Adapter"
 288
 289 /*
 290  * HO HBA SSDIDs
 291  */
 292 #define MPT2SAS_HP_2_4_INTERNAL_SSDID                   0x0041
 293 #define MPT2SAS_HP_2_4_EXTERNAL_SSDID                   0x0042
 294 #define MPT2SAS_HP_1_4_INTERNAL_1_4_EXTERNAL_SSDID      0x0043
 295 #define MPT2SAS_HP_EMBEDDED_2_4_INTERNAL_SSDID          0x0044
 296 #define MPT2SAS_HP_DAUGHTER_2_4_INTERNAL_SSDID          0x0046
 297
 298 /*
 299  * Combined Reply Queue constants,
 300  * There are twelve Supplemental Reply Post Host Index Registers
 301  * and each register is at offset 0x10 bytes from the previous one.
 302  */
 303 #define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT_G3     12
 304 #define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT_G35    16
 305 #define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET       (0x10)
 306
 307 /* OEM Identifiers */
 308 #define MFG10_OEM_ID_INVALID                   (0x00000000)
 309 #define MFG10_OEM_ID_DELL                      (0x00000001)
 310 #define MFG10_OEM_ID_FSC                       (0x00000002)
 311 #define MFG10_OEM_ID_SUN                       (0x00000003)
 312 #define MFG10_OEM_ID_IBM                       (0x00000004)
 313
 314 /* GENERIC Flags 0*/
 315 #define MFG10_GF0_OCE_DISABLED                 (0x00000001)
 316 #define MFG10_GF0_R1E_DRIVE_COUNT              (0x00000002)
 317 #define MFG10_GF0_R10_DISPLAY                  (0x00000004)
 318 #define MFG10_GF0_SSD_DATA_SCRUB_DISABLE       (0x00000008)
 319 #define MFG10_GF0_SINGLE_DRIVE_R0              (0x00000010)
 320
 321 #define VIRTUAL_IO_FAILED_RETRY                 (0x32010081)
 322
 323 /* OEM Specific Flags will come from OEM specific header files */
 324 struct Mpi2ManufacturingPage10_t {
 325         MPI2_CONFIG_PAGE_HEADER Header;         /* 00h */
 326         U8      OEMIdentifier;                  /* 04h */
 327         U8      Reserved1;                      /* 05h */
 328         U16     Reserved2;                      /* 08h */
 329         U32     Reserved3;                      /* 0Ch */
 330         U32     GenericFlags0;                  /* 10h */
 331         U32     GenericFlags1;                  /* 14h */
 332         U32     Reserved4;                      /* 18h */
 333         U32     OEMSpecificFlags0;              /* 1Ch */
 334         U32     OEMSpecificFlags1;              /* 20h */
 335         U32     Reserved5[18];                  /* 24h - 60h*/
 336 };
 337
 338
 339 /* Miscellaneous options */
 340 struct Mpi2ManufacturingPage11_t {
 341         MPI2_CONFIG_PAGE_HEADER Header;         /* 00h */
 342         __le32  Reserved1;                      /* 04h */
 343         u8      Reserved2;                      /* 08h */
 344         u8      EEDPTagMode;                    /* 09h */
 345         u8      Reserved3;                      /* 0Ah */
 346         u8      Reserved4;                      /* 0Bh */
 347         __le32  Reserved5[23];                  /* 0Ch-60h*/
 348 };
 349
 350 /**
 351  * struct MPT3SAS_TARGET - starget private hostdata
 352  * @starget: starget object
 353  * @sas_address: target sas address
 354  * @raid_device: raid_device pointer to access volume data
 355  * @handle: device handle
 356  * @num_luns: number luns
 357  * @flags: MPT_TARGET_FLAGS_XXX flags
 358  * @deleted: target flaged for deletion
 359  * @tm_busy: target is busy with TM request.
 360  * @sdev: The sas_device associated with this target
 361  */
 362 struct MPT3SAS_TARGET {
 363         struct scsi_target *starget;
 364         u64     sas_address;
 365         struct _raid_device *raid_device;
 366         u16     handle;
 367         int     num_luns;
 368         u32     flags;
 369         u8      deleted;
 370         u8      tm_busy;
 371         struct _sas_device *sdev;
 372 };
 373
 374
 375 /*
 376  * per device private data
 377  */
 378 #define MPT_DEVICE_FLAGS_INIT           0x01
 379
 380 #define MFG_PAGE10_HIDE_SSDS_MASK       (0x00000003)
 381 #define MFG_PAGE10_HIDE_ALL_DISKS       (0x00)
 382 #define MFG_PAGE10_EXPOSE_ALL_DISKS     (0x01)
 383 #define MFG_PAGE10_HIDE_IF_VOL_PRESENT  (0x02)
 384
 385 /**
 386  * struct MPT3SAS_DEVICE - sdev private hostdata
 387  * @sas_target: starget private hostdata
 388  * @lun: lun number
 389  * @flags: MPT_DEVICE_XXX flags
 390  * @configured_lun: lun is configured
 391  * @block: device is in SDEV_BLOCK state
 392  * @tlr_snoop_check: flag used in determining whether to disable TLR
 393  * @eedp_enable: eedp support enable bit
 394  * @eedp_type: 0(type_1), 1(type_2), 2(type_3)
 395  * @eedp_block_length: block size
 396  * @ata_command_pending: SATL passthrough outstanding for device
 397  */
 398 struct MPT3SAS_DEVICE {
 399         struct MPT3SAS_TARGET *sas_target;
 400         unsigned int    lun;
 401         u32     flags;
 402         u8      configured_lun;
 403         u8      block;
 404         u8      tlr_snoop_check;
 405         u8      ignore_delay_remove;
 406         /* Iopriority Command Handling */
 407         u8      ncq_prio_enable;
 408         /*
 409          * Bug workaround for SATL handling: the mpt2/3sas firmware
 410          * doesn't return BUSY or TASK_SET_FULL for subsequent
 411          * commands while a SATL pass through is in operation as the
 412          * spec requires, it simply does nothing with them until the
 413          * pass through completes, causing them possibly to timeout if
 414          * the passthrough is a long executing command (like format or
 415          * secure erase).  This variable allows us to do the right
 416          * thing while a SATL command is pending.
 417          */
 418         unsigned long ata_command_pending;
 419
 420 };
 421
 422 #define MPT3_CMD_NOT_USED       0x8000  /* free */
 423 #define MPT3_CMD_COMPLETE       0x0001  /* completed */
 424 #define MPT3_CMD_PENDING        0x0002  /* pending */
 425 #define MPT3_CMD_REPLY_VALID    0x0004  /* reply is valid */
 426 #define MPT3_CMD_RESET          0x0008  /* host reset dropped the command */
 427
 428 /**
 429  * struct _internal_cmd - internal commands struct
 430  * @mutex: mutex
 431  * @done: completion
 432  * @reply: reply message pointer
 433  * @sense: sense data
 434  * @status: MPT3_CMD_XXX status
 435  * @smid: system message id
 436  */
 437 struct _internal_cmd {
 438         struct mutex mutex;
 439         struct completion done;
 440         void    *reply;
 441         void    *sense;
 442         u16     status;
 443         u16     smid;
 444 };
 445
 446
 447
 448 /**
 449  * struct _sas_device - attached device information
 450  * @list: sas device list
 451  * @starget: starget object
 452  * @sas_address: device sas address
 453  * @device_name: retrieved from the SAS IDENTIFY frame.
 454  * @handle: device handle
 455  * @sas_address_parent: sas address of parent expander or sas host
 456  * @enclosure_handle: enclosure handle
 457  * @enclosure_logical_id: enclosure logical identifier
 458  * @volume_handle: volume handle (valid when hidden raid member)
 459  * @volume_wwid: volume unique identifier
 460  * @device_info: bitfield provides detailed info about the device
 461  * @id: target id
 462  * @channel: target channel
 463  * @slot: number number
 464  * @phy: phy identifier provided in sas device page 0
 465  * @responding: used in _scsih_sas_device_mark_responding
 466  * @fast_path: fast path feature enable bit
 467  * @pfa_led_on: flag for PFA LED status
 468  * @pend_sas_rphy_add: flag to check if device is in sas_rphy_add()
 469  *      addition routine.
 470  */
 471 struct _sas_device {
 472         struct list_head list;
 473         struct scsi_target *starget;
 474         u64     sas_address;
 475         u64     device_name;
 476         u16     handle;
 477         u64     sas_address_parent;
 478         u16     enclosure_handle;
 479         u64     enclosure_logical_id;
 480         u16     volume_handle;
 481         u64     volume_wwid;
 482         u32     device_info;
 483         int     id;
 484         int     channel;
 485         u16     slot;
 486         u8      phy;
 487         u8      responding;
 488         u8      fast_path;
 489         u8      pfa_led_on;
 490         u8      pend_sas_rphy_add;
 491         u8      enclosure_level;
 492         u8      connector_name[5];
 493         struct kref refcount;
 494 };
 495
 496 static inline void sas_device_get(struct _sas_device *s)
 497 {
 498         kref_get(&s->refcount);
 499 }
 500
 501 static inline void sas_device_free(struct kref *r)
 502 {
 503         kfree(container_of(r, struct _sas_device, refcount));
 504 }
 505
 506 static inline void sas_device_put(struct _sas_device *s)
 507 {
 508         kref_put(&s->refcount, sas_device_free);
 509 }
 510
 511 /**
 512  * struct _raid_device - raid volume link list
 513  * @list: sas device list
 514  * @starget: starget object
 515  * @sdev: scsi device struct (volumes are single lun)
 516  * @wwid: unique identifier for the volume
 517  * @handle: device handle
 518  * @block_size: Block size of the volume
 519  * @id: target id
 520  * @channel: target channel
 521  * @volume_type: the raid level
 522  * @device_info: bitfield provides detailed info about the hidden components
 523  * @num_pds: number of hidden raid components
 524  * @responding: used in _scsih_raid_device_mark_responding
 525  * @percent_complete: resync percent complete
 526  * @direct_io_enabled: Whether direct io to PDs are allowed or not
 527  * @stripe_exponent: X where 2powX is the stripe sz in blocks
 528  * @block_exponent: X where 2powX is the block sz in bytes
 529  * @max_lba: Maximum number of LBA in the volume
 530  * @stripe_sz: Stripe Size of the volume
 531  * @device_info: Device info of the volume member disk
 532  * @pd_handle: Array of handles of the physical drives for direct I/O in le16
 533  */
 534 #define MPT_MAX_WARPDRIVE_PDS           8
 535 struct _raid_device {
 536         struct list_head list;
 537         struct scsi_target *starget;
 538         struct scsi_device *sdev;
 539         u64     wwid;
 540         u16     handle;
 541         u16     block_sz;
 542         int     id;
 543         int     channel;
 544         u8      volume_type;
 545         u8      num_pds;
 546         u8      responding;
 547         u8      percent_complete;
 548         u8      direct_io_enabled;
 549         u8      stripe_exponent;
 550         u8      block_exponent;
 551         u64     max_lba;
 552         u32     stripe_sz;
 553         u32     device_info;
 554         u16     pd_handle[MPT_MAX_WARPDRIVE_PDS];
 555 };
 556
 557 /**
 558  * struct _boot_device - boot device info
 559  * @is_raid: flag to indicate whether this is volume
 560  * @device: holds pointer for either struct _sas_device or
 561  *     struct _raid_device
 562  */
 563 struct _boot_device {
 564         u8 is_raid;
 565         void *device;
 566 };
 567
 568 /**
 569  * struct _sas_port - wide/narrow sas port information
 570  * @port_list: list of ports belonging to expander
 571  * @num_phys: number of phys belonging to this port
 572  * @remote_identify: attached device identification
 573  * @rphy: sas transport rphy object
 574  * @port: sas transport wide/narrow port object
 575  * @phy_list: _sas_phy list objects belonging to this port
 576  */
 577 struct _sas_port {
 578         struct list_head port_list;
 579         u8      num_phys;
 580         struct sas_identify remote_identify;
 581         struct sas_rphy *rphy;
 582         struct sas_port *port;
 583         struct list_head phy_list;
 584 };
 585
 586 /**
 587  * struct _sas_phy - phy information
 588  * @port_siblings: list of phys belonging to a port
 589  * @identify: phy identification
 590  * @remote_identify: attached device identification
 591  * @phy: sas transport phy object
 592  * @phy_id: unique phy id
 593  * @handle: device handle for this phy
 594  * @attached_handle: device handle for attached device
 595  * @phy_belongs_to_port: port has been created for this phy
 596  */
 597 struct _sas_phy {
 598         struct list_head port_siblings;
 599         struct sas_identify identify;
 600         struct sas_identify remote_identify;
 601         struct sas_phy *phy;
 602         u8      phy_id;
 603         u16     handle;
 604         u16     attached_handle;
 605         u8      phy_belongs_to_port;
 606 };
 607
 608 /**
 609  * struct _sas_node - sas_host/expander information
 610  * @list: list of expanders
 611  * @parent_dev: parent device class
 612  * @num_phys: number phys belonging to this sas_host/expander
 613  * @sas_address: sas address of this sas_host/expander
 614  * @handle: handle for this sas_host/expander
 615  * @sas_address_parent: sas address of parent expander or sas host
 616  * @enclosure_handle: handle for this a member of an enclosure
 617  * @device_info: bitwise defining capabilities of this sas_host/expander
 618  * @responding: used in _scsih_expander_device_mark_responding
 619  * @phy: a list of phys that make up this sas_host/expander
 620  * @sas_port_list: list of ports attached to this sas_host/expander
 621  */
 622 struct _sas_node {
 623         struct list_head list;
 624         struct device *parent_dev;
 625         u8      num_phys;
 626         u64     sas_address;
 627         u16     handle;
 628         u64     sas_address_parent;
 629         u16     enclosure_handle;
 630         u64     enclosure_logical_id;
 631         u8      responding;
 632         struct  _sas_phy *phy;
 633         struct list_head sas_port_list;
 634 };
 635
 636 /**
 637  * enum reset_type - reset state
 638  * @FORCE_BIG_HAMMER: issue diagnostic reset
 639  * @SOFT_RESET: issue message_unit_reset, if fails to to big hammer
 640  */
 641 enum reset_type {
 642         FORCE_BIG_HAMMER,
 643         SOFT_RESET,
 644 };
 645
 646 /**
 647  * struct chain_tracker - firmware chain tracker
 648  * @chain_buffer: chain buffer
 649  * @chain_buffer_dma: physical address
 650  * @tracker_list: list of free request (ioc->free_chain_list)
 651  */
 652 struct chain_tracker {
 653         void *chain_buffer;
 654         dma_addr_t chain_buffer_dma;
 655         struct list_head tracker_list;
 656 };
 657
 658 /**
 659  * struct scsiio_tracker - scsi mf request tracker
 660  * @smid: system message id
 661  * @scmd: scsi request pointer
 662  * @cb_idx: callback index
 663  * @direct_io: To indicate whether I/O is direct (WARPDRIVE)
 664  * @tracker_list: list of free request (ioc->free_list)
 665  * @msix_io: IO's msix
 666  */
 667 struct scsiio_tracker {
 668         u16     smid;
 669         struct scsi_cmnd *scmd;
 670         u8      cb_idx;
 671         u8      direct_io;
 672         struct list_head chain_list;
 673         struct list_head tracker_list;
 674         u16     msix_io;
 675 };
 676
 677 /**
 678  * struct request_tracker - firmware request tracker
 679  * @smid: system message id
 680  * @cb_idx: callback index
 681  * @tracker_list: list of free request (ioc->free_list)
 682  */
 683 struct request_tracker {
 684         u16     smid;
 685         u8      cb_idx;
 686         struct list_head tracker_list;
 687 };
 688
 689 /**
 690  * struct _tr_list - target reset list
 691  * @handle: device handle
 692  * @state: state machine
 693  */
 694 struct _tr_list {
 695         struct list_head list;
 696         u16     handle;
 697         u16     state;
 698 };
 699
 700 /**
 701  * struct _sc_list - delayed SAS_IO_UNIT_CONTROL message list
 702  * @handle: device handle
 703  */
 704 struct _sc_list {
 705         struct list_head list;
 706         u16     handle;
 707 };
 708
 709 /**
 710  * struct _event_ack_list - delayed event acknowledgment list
 711  * @Event: Event ID
 712  * @EventContext: used to track the event uniquely
 713  */
 714 struct _event_ack_list {
 715         struct list_head list;
 716         u16     Event;
 717         u32     EventContext;
 718 };
 719
 720 /**
 721  * struct adapter_reply_queue - the reply queue struct
 722  * @ioc: per adapter object
 723  * @msix_index: msix index into vector table
 724  * @vector: irq vector
 725  * @reply_post_host_index: head index in the pool where FW completes IO
 726  * @reply_post_free: reply post base virt address
 727  * @name: the name registered to request_irq()
 728  * @busy: isr is actively processing replies on another cpu
 729  * @list: this list
 730 */
 731 struct adapter_reply_queue {
 732         struct MPT3SAS_ADAPTER  *ioc;
 733         u8                      msix_index;
 734         unsigned int            vector;
 735         u32                     reply_post_host_index;
 736         Mpi2ReplyDescriptorsUnion_t *reply_post_free;
 737         char                    name[MPT_NAME_LENGTH];
 738         atomic_t                busy;
 739         cpumask_var_t           affinity_hint;
 740         struct list_head        list;
 741 };
 742
 743 typedef void (*MPT_ADD_SGE)(void *paddr, u32 flags_length, dma_addr_t dma_addr);
 744
 745 /* SAS3.0 support */
 746 typedef int (*MPT_BUILD_SG_SCMD)(struct MPT3SAS_ADAPTER *ioc,
 747                 struct scsi_cmnd *scmd, u16 smid);
 748 typedef void (*MPT_BUILD_SG)(struct MPT3SAS_ADAPTER *ioc, void *psge,
 749                 dma_addr_t data_out_dma, size_t data_out_sz,
 750                 dma_addr_t data_in_dma, size_t data_in_sz);
 751 typedef void (*MPT_BUILD_ZERO_LEN_SGE)(struct MPT3SAS_ADAPTER *ioc,
 752                 void *paddr);
 753
 754 /* To support atomic and non atomic descriptors*/
 755 typedef void (*PUT_SMID_IO_FP_HIP) (struct MPT3SAS_ADAPTER *ioc, u16 smid,
 756         u16 funcdep);
 757 typedef void (*PUT_SMID_DEFAULT) (struct MPT3SAS_ADAPTER *ioc, u16 smid);
 758
 759 /* IOC Facts and Port Facts converted from little endian to cpu */
 760 union mpi3_version_union {
 761         MPI2_VERSION_STRUCT             Struct;
 762         u32                             Word;
 763 };
 764
 765 struct mpt3sas_facts {
 766         u16                     MsgVersion;
 767         u16                     HeaderVersion;
 768         u8                      IOCNumber;
 769         u8                      VP_ID;
 770         u8                      VF_ID;
 771         u16                     IOCExceptions;
 772         u16                     IOCStatus;
 773         u32                     IOCLogInfo;
 774         u8                      MaxChainDepth;
 775         u8                      WhoInit;
 776         u8                      NumberOfPorts;
 777         u8                      MaxMSIxVectors;
 778         u16                     RequestCredit;
 779         u16                     ProductID;
 780         u32                     IOCCapabilities;
 781         union mpi3_version_union        FWVersion;
 782         u16                     IOCRequestFrameSize;
 783         u16                     IOCMaxChainSegmentSize;
 784         u16                     MaxInitiators;
 785         u16                     MaxTargets;
 786         u16                     MaxSasExpanders;
 787         u16                     MaxEnclosures;
 788         u16                     ProtocolFlags;
 789         u16                     HighPriorityCredit;
 790         u16                     MaxReplyDescriptorPostQueueDepth;
 791         u8                      ReplyFrameSize;
 792         u8                      MaxVolumes;
 793         u16                     MaxDevHandle;
 794         u16                     MaxPersistentEntries;
 795         u16                     MinDevHandle;
 796 };
 797
 798 struct mpt3sas_port_facts {
 799         u8                      PortNumber;
 800         u8                      VP_ID;
 801         u8                      VF_ID;
 802         u8                      PortType;
 803         u16                     MaxPostedCmdBuffers;
 804 };
 805
 806 struct reply_post_struct {
 807         Mpi2ReplyDescriptorsUnion_t     *reply_post_free;
 808         dma_addr_t                      reply_post_free_dma;
 809 };
 810
 811 typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc);
 812 /**
 813  * struct MPT3SAS_ADAPTER - per adapter struct
 814  * @list: ioc_list
 815  * @shost: shost object
 816  * @id: unique adapter id
 817  * @cpu_count: number online cpus
 818  * @name: generic ioc string
 819  * @tmp_string: tmp string used for logging
 820  * @pdev: pci pdev object
 821  * @pio_chip: physical io register space
 822  * @chip: memory mapped register space
 823  * @chip_phys: physical addrss prior to mapping
 824  * @logging_level: see mpt3sas_debug.h
 825  * @fwfault_debug: debuging FW timeouts
 826  * @ir_firmware: IR firmware present
 827  * @bars: bitmask of BAR's that must be configured
 828  * @mask_interrupts: ignore interrupt
 829  * @dma_mask: used to set the consistent dma mask
 830  * @fault_reset_work_q_name: fw fault work queue
 831  * @fault_reset_work_q: ""
 832  * @fault_reset_work: ""
 833  * @firmware_event_name: fw event work queue
 834  * @firmware_event_thread: ""
 835  * @fw_event_lock:
 836  * @fw_event_list: list of fw events
 837  * @aen_event_read_flag: event log was read
 838  * @broadcast_aen_busy: broadcast aen waiting to be serviced
 839  * @shost_recovery: host reset in progress
 840  * @ioc_reset_in_progress_lock:
 841  * @ioc_link_reset_in_progress: phy/hard reset in progress
 842  * @ignore_loginfos: ignore loginfos during task management
 843  * @remove_host: flag for when driver unloads, to avoid sending dev resets
 844  * @pci_error_recovery: flag to prevent ioc access until slot reset completes
 845  * @wait_for_discovery_to_complete: flag set at driver load time when
 846  *                                               waiting on reporting devices
 847  * @is_driver_loading: flag set at driver load time
 848  * @port_enable_failed: flag set when port enable has failed
 849  * @start_scan: flag set from scan_start callback, cleared from _mpt3sas_fw_work
 850  * @start_scan_failed: means port enable failed, return's the ioc_status
 851  * @msix_enable: flag indicating msix is enabled
 852  * @msix_vector_count: number msix vectors
 853  * @cpu_msix_table: table for mapping cpus to msix index
 854  * @cpu_msix_table_sz: table size
 855  * @schedule_dead_ioc_flush_running_cmds: callback to flush pending commands
 856  * @scsi_io_cb_idx: shost generated commands
 857  * @tm_cb_idx: task management commands
 858  * @scsih_cb_idx: scsih internal commands
 859  * @transport_cb_idx: transport internal commands
 860  * @ctl_cb_idx: clt internal commands
 861  * @base_cb_idx: base internal commands
 862  * @config_cb_idx: base internal commands
 863  * @tm_tr_cb_idx : device removal target reset handshake
 864  * @tm_tr_volume_cb_idx : volume removal target reset
 865  * @base_cmds:
 866  * @transport_cmds:
 867  * @scsih_cmds:
 868  * @tm_cmds:
 869  * @ctl_cmds:
 870  * @config_cmds:
 871  * @base_add_sg_single: handler for either 32/64 bit sgl's
 872  * @event_type: bits indicating which events to log
 873  * @event_context: unique id for each logged event
 874  * @event_log: event log pointer
 875  * @event_masks: events that are masked
 876  * @facts: static facts data
 877  * @pfacts: static port facts data
 878  * @manu_pg0: static manufacturing page 0
 879  * @manu_pg10: static manufacturing page 10
 880  * @manu_pg11: static manufacturing page 11
 881  * @bios_pg2: static bios page 2
 882  * @bios_pg3: static bios page 3
 883  * @ioc_pg8: static ioc page 8
 884  * @iounit_pg0: static iounit page 0
 885  * @iounit_pg1: static iounit page 1
 886  * @iounit_pg8: static iounit page 8
 887  * @sas_hba: sas host object
 888  * @sas_expander_list: expander object list
 889  * @sas_node_lock:
 890  * @sas_device_list: sas device object list
 891  * @sas_device_init_list: sas device object list (used only at init time)
 892  * @sas_device_lock:
 893  * @io_missing_delay: time for IO completed by fw when PDR enabled
 894  * @device_missing_delay: time for device missing by fw when PDR enabled
 895  * @sas_id : used for setting volume target IDs
 896  * @blocking_handles: bitmask used to identify which devices need blocking
 897  * @pd_handles : bitmask for PD handles
 898  * @pd_handles_sz : size of pd_handle bitmask
 899  * @config_page_sz: config page size
 900  * @config_page: reserve memory for config page payload
 901  * @config_page_dma:
 902  * @hba_queue_depth: hba request queue depth
 903  * @sge_size: sg element size for either 32/64 bit
 904  * @scsiio_depth: SCSI_IO queue depth
 905  * @request_sz: per request frame size
 906  * @request: pool of request frames
 907  * @request_dma:
 908  * @request_dma_sz:
 909  * @scsi_lookup: firmware request tracker list
 910  * @scsi_lookup_lock:
 911  * @free_list: free list of request
 912  * @pending_io_count:
 913  * @reset_wq:
 914  * @chain: pool of chains
 915  * @chain_dma:
 916  * @max_sges_in_main_message: number sg elements in main message
 917  * @max_sges_in_chain_message: number sg elements per chain
 918  * @chains_needed_per_io: max chains per io
 919  * @chain_depth: total chains allocated
 920  * @chain_segment_sz: gives the max number of
 921  *                      SGEs accommodate on single chain buffer
 922  * @hi_priority_smid:
 923  * @hi_priority:
 924  * @hi_priority_dma:
 925  * @hi_priority_depth:
 926  * @hpr_lookup:
 927  * @hpr_free_list:
 928  * @internal_smid:
 929  * @internal:
 930  * @internal_dma:
 931  * @internal_depth:
 932  * @internal_lookup:
 933  * @internal_free_list:
 934  * @sense: pool of sense
 935  * @sense_dma:
 936  * @sense_dma_pool:
 937  * @reply_depth: hba reply queue depth:
 938  * @reply_sz: per reply frame size:
 939  * @reply: pool of replys:
 940  * @reply_dma:
 941  * @reply_dma_pool:
 942  * @reply_free_queue_depth: reply free depth
 943  * @reply_free: pool for reply free queue (32 bit addr)
 944  * @reply_free_dma:
 945  * @reply_free_dma_pool:
 946  * @reply_free_host_index: tail index in pool to insert free replys
 947  * @reply_post_queue_depth: reply post queue depth
 948  * @reply_post_struct: struct for reply_post_free physical & virt address
 949  * @rdpq_array_capable: FW supports multiple reply queue addresses in ioc_init
 950  * @rdpq_array_enable: rdpq_array support is enabled in the driver
 951  * @rdpq_array_enable_assigned: this ensures that rdpq_array_enable flag
 952  *                              is assigned only ones
 953  * @reply_queue_count: number of reply queue's
 954  * @reply_queue_list: link list contaning the reply queue info
 955  * @msix96_vector: 96 MSI-X vector support
 956  * @replyPostRegisterIndex: index of next position in Reply Desc Post Queue
 957  * @delayed_tr_list: target reset link list
 958  * @delayed_tr_volume_list: volume target reset link list
 959  * @delayed_sc_list:
 960  * @delayed_event_ack_list:
 961  * @temp_sensors_count: flag to carry the number of temperature sensors
 962  * @pci_access_mutex: Mutex to synchronize ioctl,sysfs show path and
 963  *      pci resource handling. PCI resource freeing will lead to free
 964  *      vital hardware/memory resource, which might be in use by cli/sysfs
 965  *      path functions resulting in Null pointer reference followed by kernel
 966  *      crash. To avoid the above race condition we use mutex syncrhonization
 967  *      which ensures the syncrhonization between cli/sysfs_show path.
 968  */
 969 struct MPT3SAS_ADAPTER {
 970         struct list_head list;
 971         struct Scsi_Host *shost;
 972         u8              id;
 973         int             cpu_count;
 974         char            name[MPT_NAME_LENGTH];
 975         char            driver_name[MPT_NAME_LENGTH];
 976         char            tmp_string[MPT_STRING_LENGTH];
 977         struct pci_dev  *pdev;
 978         Mpi2SystemInterfaceRegs_t __iomem *chip;
 979         resource_size_t chip_phys;
 980         int             logging_level;
 981         int             fwfault_debug;
 982         u8              ir_firmware;
 983         int             bars;
 984         u8              mask_interrupts;
 985         int             dma_mask;
 986
 987         /* fw fault handler */
 988         char            fault_reset_work_q_name[20];
 989         struct workqueue_struct *fault_reset_work_q;
 990         struct delayed_work fault_reset_work;
 991
 992         /* fw event handler */
 993         char            firmware_event_name[20];
 994         struct workqueue_struct *firmware_event_thread;
 995         spinlock_t      fw_event_lock;
 996         struct list_head fw_event_list;
 997
 998          /* misc flags */
 999         int             aen_event_read_flag;
1000         u8              broadcast_aen_busy;
1001         u16             broadcast_aen_pending;
1002         u8              shost_recovery;
1003         u8              got_task_abort_from_ioctl;
1004
1005         struct mutex    reset_in_progress_mutex;
1006         spinlock_t      ioc_reset_in_progress_lock;
1007         u8              ioc_link_reset_in_progress;
1008         u8              ioc_reset_in_progress_status;
1009
1010         u8              ignore_loginfos;
1011         u8              remove_host;
1012         u8              pci_error_recovery;
1013         u8              wait_for_discovery_to_complete;
1014         u8              is_driver_loading;
1015         u8              port_enable_failed;
1016         u8              start_scan;
1017         u16             start_scan_failed;
1018
1019         u8              msix_enable;
1020         u16             msix_vector_count;
1021         u8              *cpu_msix_table;
1022         u16             cpu_msix_table_sz;
1023         resource_size_t __iomem **reply_post_host_index;
1024         u32             ioc_reset_count;
1025         MPT3SAS_FLUSH_RUNNING_CMDS schedule_dead_ioc_flush_running_cmds;
1026         u32             non_operational_loop;
1027
1028         /* internal commands, callback index */
1029         u8              scsi_io_cb_idx;
1030         u8              tm_cb_idx;
1031         u8              transport_cb_idx;
1032         u8              scsih_cb_idx;
1033         u8              ctl_cb_idx;
1034         u8              base_cb_idx;
1035         u8              port_enable_cb_idx;
1036         u8              config_cb_idx;
1037         u8              tm_tr_cb_idx;
1038         u8              tm_tr_volume_cb_idx;
1039         u8              tm_sas_control_cb_idx;
1040         struct _internal_cmd base_cmds;
1041         struct _internal_cmd port_enable_cmds;
1042         struct _internal_cmd transport_cmds;
1043         struct _internal_cmd scsih_cmds;
1044         struct _internal_cmd tm_cmds;
1045         struct _internal_cmd ctl_cmds;
1046         struct _internal_cmd config_cmds;
1047
1048         MPT_ADD_SGE     base_add_sg_single;
1049
1050         /* function ptr for either IEEE or MPI sg elements */
1051         MPT_BUILD_SG_SCMD build_sg_scmd;
1052         MPT_BUILD_SG    build_sg;
1053         MPT_BUILD_ZERO_LEN_SGE build_zero_len_sge;
1054         u16             sge_size_ieee;
1055         u16             hba_mpi_version_belonged;
1056
1057         /* function ptr for MPI sg elements only */
1058         MPT_BUILD_SG    build_sg_mpi;
1059         MPT_BUILD_ZERO_LEN_SGE build_zero_len_sge_mpi;
1060
1061         /* event log */
1062         u32             event_type[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
1063         u32             event_context;
1064         void            *event_log;
1065         u32             event_masks[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
1066
1067         /* static config pages */
1068         struct mpt3sas_facts facts;
1069         struct mpt3sas_port_facts *pfacts;
1070         Mpi2ManufacturingPage0_t manu_pg0;
1071         struct Mpi2ManufacturingPage10_t manu_pg10;
1072         struct Mpi2ManufacturingPage11_t manu_pg11;
1073         Mpi2BiosPage2_t bios_pg2;
1074         Mpi2BiosPage3_t bios_pg3;
1075         Mpi2IOCPage8_t ioc_pg8;
1076         Mpi2IOUnitPage0_t iounit_pg0;
1077         Mpi2IOUnitPage1_t iounit_pg1;
1078         Mpi2IOUnitPage8_t iounit_pg8;
1079
1080         struct _boot_device req_boot_device;
1081         struct _boot_device req_alt_boot_device;
1082         struct _boot_device current_boot_device;
1083
1084         /* sas hba, expander, and device list */
1085         struct _sas_node sas_hba;
1086         struct list_head sas_expander_list;
1087         spinlock_t      sas_node_lock;
1088         struct list_head sas_device_list;
1089         struct list_head sas_device_init_list;
1090         spinlock_t      sas_device_lock;
1091         struct list_head raid_device_list;
1092         spinlock_t      raid_device_lock;
1093         u8              io_missing_delay;
1094         u16             device_missing_delay;
1095         int             sas_id;
1096
1097         void            *blocking_handles;
1098         void            *pd_handles;
1099         u16             pd_handles_sz;
1100
1101         void            *pend_os_device_add;
1102         u16             pend_os_device_add_sz;
1103
1104         /* config page */
1105         u16             config_page_sz;
1106         void            *config_page;
1107         dma_addr_t      config_page_dma;
1108
1109         /* scsiio request */
1110         u16             hba_queue_depth;
1111         u16             sge_size;
1112         u16             scsiio_depth;
1113         u16             request_sz;
1114         u8              *request;
1115         dma_addr_t      request_dma;
1116         u32             request_dma_sz;
1117         struct scsiio_tracker *scsi_lookup;
1118         ulong           scsi_lookup_pages;
1119         spinlock_t      scsi_lookup_lock;
1120         struct list_head free_list;
1121         int             pending_io_count;
1122         wait_queue_head_t reset_wq;
1123
1124         /* chain */
1125         struct chain_tracker *chain_lookup;
1126         struct list_head free_chain_list;
1127         struct dma_pool *chain_dma_pool;
1128         ulong           chain_pages;
1129         u16             max_sges_in_main_message;
1130         u16             max_sges_in_chain_message;
1131         u16             chains_needed_per_io;
1132         u32             chain_depth;
1133         u16             chain_segment_sz;
1134
1135         /* hi-priority queue */
1136         u16             hi_priority_smid;
1137         u8              *hi_priority;
1138         dma_addr_t      hi_priority_dma;
1139         u16             hi_priority_depth;
1140         struct request_tracker *hpr_lookup;
1141         struct list_head hpr_free_list;
1142
1143         /* internal queue */
1144         u16             internal_smid;
1145         u8              *internal;
1146         dma_addr_t      internal_dma;
1147         u16             internal_depth;
1148         struct request_tracker *internal_lookup;
1149         struct list_head internal_free_list;
1150
1151         /* sense */
1152         u8              *sense;
1153         dma_addr_t      sense_dma;
1154         struct dma_pool *sense_dma_pool;
1155
1156         /* reply */
1157         u16             reply_sz;
1158         u8              *reply;
1159         dma_addr_t      reply_dma;
1160         u32             reply_dma_max_address;
1161         u32             reply_dma_min_address;
1162         struct dma_pool *reply_dma_pool;
1163
1164         /* reply free queue */
1165         u16             reply_free_queue_depth;
1166         __le32          *reply_free;
1167         dma_addr_t      reply_free_dma;
1168         struct dma_pool *reply_free_dma_pool;
1169         u32             reply_free_host_index;
1170
1171         /* reply post queue */
1172         u16             reply_post_queue_depth;
1173         struct reply_post_struct *reply_post;
1174         u8              rdpq_array_capable;
1175         u8              rdpq_array_enable;
1176         u8              rdpq_array_enable_assigned;
1177         struct dma_pool *reply_post_free_dma_pool;
1178         u8              reply_queue_count;
1179         struct list_head reply_queue_list;
1180
1181         u8              combined_reply_queue;
1182         u8              combined_reply_index_count;
1183         /* reply post register index */
1184         resource_size_t **replyPostRegisterIndex;
1185
1186         struct list_head delayed_tr_list;
1187         struct list_head delayed_tr_volume_list;
1188         struct list_head delayed_sc_list;
1189         struct list_head delayed_event_ack_list;
1190         u8              temp_sensors_count;
1191         struct mutex pci_access_mutex;
1192
1193         /* diag buffer support */
1194         u8              *diag_buffer[MPI2_DIAG_BUF_TYPE_COUNT];
1195         u32             diag_buffer_sz[MPI2_DIAG_BUF_TYPE_COUNT];
1196         dma_addr_t      diag_buffer_dma[MPI2_DIAG_BUF_TYPE_COUNT];
1197         u8              diag_buffer_status[MPI2_DIAG_BUF_TYPE_COUNT];
1198         u32             unique_id[MPI2_DIAG_BUF_TYPE_COUNT];
1199         u32             product_specific[MPI2_DIAG_BUF_TYPE_COUNT][23];
1200         u32             diagnostic_flags[MPI2_DIAG_BUF_TYPE_COUNT];
1201         u32             ring_buffer_offset;
1202         u32             ring_buffer_sz;
1203         u8              is_warpdrive;
1204         u8              hide_ir_msg;
1205         u8              mfg_pg10_hide_flag;
1206         u8              hide_drives;
1207         spinlock_t      diag_trigger_lock;
1208         u8              diag_trigger_active;
1209         struct SL_WH_MASTER_TRIGGER_T diag_trigger_master;
1210         struct SL_WH_EVENT_TRIGGERS_T diag_trigger_event;
1211         struct SL_WH_SCSI_TRIGGERS_T diag_trigger_scsi;
1212         struct SL_WH_MPI_TRIGGERS_T diag_trigger_mpi;
1213         void            *device_remove_in_progress;
1214         u16             device_remove_in_progress_sz;
1215         u8              is_gen35_ioc;
1216         u8              atomic_desc_capable;
1217         PUT_SMID_IO_FP_HIP put_smid_scsi_io;
1218         PUT_SMID_IO_FP_HIP put_smid_fast_path;
1219         PUT_SMID_IO_FP_HIP put_smid_hi_priority;
1220         PUT_SMID_DEFAULT put_smid_default;
1221
1222 };
1223
1224 typedef u8 (*MPT_CALLBACK)(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
1225         u32 reply);
1226
1227
1228 /* base shared API */
1229 extern struct list_head mpt3sas_ioc_list;
1230 extern char    driver_name[MPT_NAME_LENGTH];
1231 /* spinlock on list operations over IOCs
1232  * Case: when multiple warpdrive cards(IOCs) are in use
1233  * Each IOC will added to the ioc list structure on initialization.
1234  * Watchdog threads run at regular intervals to check IOC for any
1235  * fault conditions which will trigger the dead_ioc thread to
1236  * deallocate pci resource, resulting deleting the IOC netry from list,
1237  * this deletion need to protected by spinlock to enusre that
1238  * ioc removal is syncrhonized, if not synchronized it might lead to
1239  * list_del corruption as the ioc list is traversed in cli path.
1240  */
1241 extern spinlock_t gioc_lock;
1242
1243 void mpt3sas_base_start_watchdog(struct MPT3SAS_ADAPTER *ioc);
1244 void mpt3sas_base_stop_watchdog(struct MPT3SAS_ADAPTER *ioc);
1245
1246 int mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc);
1247 void mpt3sas_base_detach(struct MPT3SAS_ADAPTER *ioc);
1248 int mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc);
1249 void mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc);
1250 int mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc,
1251         enum reset_type type);
1252
1253 void *mpt3sas_base_get_msg_frame(struct MPT3SAS_ADAPTER *ioc, u16 smid);
1254 void *mpt3sas_base_get_sense_buffer(struct MPT3SAS_ADAPTER *ioc, u16 smid);
1255 __le32 mpt3sas_base_get_sense_buffer_dma(struct MPT3SAS_ADAPTER *ioc,
1256         u16 smid);
1257
1258 void mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc);
1259
1260 /* hi-priority queue */
1261 u16 mpt3sas_base_get_smid_hpr(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx);
1262 u16 mpt3sas_base_get_smid_scsiio(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx,
1263         struct scsi_cmnd *scmd);
1264
1265 u16 mpt3sas_base_get_smid(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx);
1266 void mpt3sas_base_free_smid(struct MPT3SAS_ADAPTER *ioc, u16 smid);
1267 void mpt3sas_base_initialize_callback_handler(void);
1268 u8 mpt3sas_base_register_callback_handler(MPT_CALLBACK cb_func);
1269 void mpt3sas_base_release_callback_handler(u8 cb_idx);
1270
1271 u8 mpt3sas_base_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
1272         u32 reply);
1273 u8 mpt3sas_port_enable_done(struct MPT3SAS_ADAPTER *ioc, u16 smid,
1274         u8 msix_index, u32 reply);
1275 void *mpt3sas_base_get_reply_virt_addr(struct MPT3SAS_ADAPTER *ioc,
1276         u32 phys_addr);
1277
1278 u32 mpt3sas_base_get_iocstate(struct MPT3SAS_ADAPTER *ioc, int cooked);
1279
1280 void mpt3sas_base_fault_info(struct MPT3SAS_ADAPTER *ioc , u16 fault_code);
1281 int mpt3sas_base_sas_iounit_control(struct MPT3SAS_ADAPTER *ioc,
1282         Mpi2SasIoUnitControlReply_t *mpi_reply,
1283         Mpi2SasIoUnitControlRequest_t *mpi_request);
1284 int mpt3sas_base_scsi_enclosure_processor(struct MPT3SAS_ADAPTER *ioc,
1285         Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request);
1286
1287 void mpt3sas_base_validate_event_type(struct MPT3SAS_ADAPTER *ioc,
1288         u32 *event_type);
1289
1290 void mpt3sas_halt_firmware(struct MPT3SAS_ADAPTER *ioc);
1291
1292 void mpt3sas_base_update_missing_delay(struct MPT3SAS_ADAPTER *ioc,
1293         u16 device_missing_delay, u8 io_missing_delay);
1294
1295 int mpt3sas_port_enable(struct MPT3SAS_ADAPTER *ioc);
1296
1297
1298 /* scsih shared API */
1299 u8 mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
1300         u32 reply);
1301 void mpt3sas_scsih_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase);
1302
1303 int mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
1304         uint channel, uint id, uint lun, u8 type, u16 smid_task,
1305         ulong timeout);
1306 int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
1307         uint channel, uint id, uint lun, u8 type, u16 smid_task,
1308         ulong timeout);
1309
1310 void mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle);
1311 void mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle);
1312 void mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address);
1313 void mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
1314         u64 sas_address);
1315 u8 mpt3sas_check_for_pending_internal_cmds(struct MPT3SAS_ADAPTER *ioc,
1316         u16 smid);
1317
1318 struct _sas_node *mpt3sas_scsih_expander_find_by_handle(
1319         struct MPT3SAS_ADAPTER *ioc, u16 handle);
1320 struct _sas_node *mpt3sas_scsih_expander_find_by_sas_address(
1321         struct MPT3SAS_ADAPTER *ioc, u64 sas_address);
1322 struct _sas_device *mpt3sas_get_sdev_by_addr(
1323          struct MPT3SAS_ADAPTER *ioc, u64 sas_address);
1324 struct _sas_device *__mpt3sas_get_sdev_by_addr(
1325          struct MPT3SAS_ADAPTER *ioc, u64 sas_address);
1326
1327 void mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc);
1328 struct _raid_device *
1329 mpt3sas_raid_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle);
1330
1331 /* config shared API */
1332 u8 mpt3sas_config_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
1333         u32 reply);
1334 int mpt3sas_config_get_number_hba_phys(struct MPT3SAS_ADAPTER *ioc,
1335         u8 *num_phys);
1336 int mpt3sas_config_get_manufacturing_pg0(struct MPT3SAS_ADAPTER *ioc,
1337         Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage0_t *config_page);
1338 int mpt3sas_config_get_manufacturing_pg7(struct MPT3SAS_ADAPTER *ioc,
1339         Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage7_t *config_page,
1340         u16 sz);
1341 int mpt3sas_config_get_manufacturing_pg10(struct MPT3SAS_ADAPTER *ioc,
1342         Mpi2ConfigReply_t *mpi_reply,
1343         struct Mpi2ManufacturingPage10_t *config_page);
1344
1345 int mpt3sas_config_get_manufacturing_pg11(struct MPT3SAS_ADAPTER *ioc,
1346         Mpi2ConfigReply_t *mpi_reply,
1347         struct Mpi2ManufacturingPage11_t  *config_page);
1348 int mpt3sas_config_set_manufacturing_pg11(struct MPT3SAS_ADAPTER *ioc,
1349         Mpi2ConfigReply_t *mpi_reply,
1350         struct Mpi2ManufacturingPage11_t *config_page);
1351
1352 int mpt3sas_config_get_bios_pg2(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1353         *mpi_reply, Mpi2BiosPage2_t *config_page);
1354 int mpt3sas_config_get_bios_pg3(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1355         *mpi_reply, Mpi2BiosPage3_t *config_page);
1356 int mpt3sas_config_get_iounit_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1357         *mpi_reply, Mpi2IOUnitPage0_t *config_page);
1358 int mpt3sas_config_get_sas_device_pg0(struct MPT3SAS_ADAPTER *ioc,
1359         Mpi2ConfigReply_t *mpi_reply, Mpi2SasDevicePage0_t *config_page,
1360         u32 form, u32 handle);
1361 int mpt3sas_config_get_sas_device_pg1(struct MPT3SAS_ADAPTER *ioc,
1362         Mpi2ConfigReply_t *mpi_reply, Mpi2SasDevicePage1_t *config_page,
1363         u32 form, u32 handle);
1364 int mpt3sas_config_get_sas_iounit_pg0(struct MPT3SAS_ADAPTER *ioc,
1365         Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage0_t *config_page,
1366         u16 sz);
1367 int mpt3sas_config_get_iounit_pg1(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1368         *mpi_reply, Mpi2IOUnitPage1_t *config_page);
1369 int mpt3sas_config_get_iounit_pg3(struct MPT3SAS_ADAPTER *ioc,
1370         Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage3_t *config_page, u16 sz);
1371 int mpt3sas_config_set_iounit_pg1(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1372         *mpi_reply, Mpi2IOUnitPage1_t *config_page);
1373 int mpt3sas_config_get_iounit_pg8(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1374         *mpi_reply, Mpi2IOUnitPage8_t *config_page);
1375 int mpt3sas_config_get_sas_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
1376         Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage1_t *config_page,
1377         u16 sz);
1378 int mpt3sas_config_set_sas_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
1379         Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage1_t *config_page,
1380         u16 sz);
1381 int mpt3sas_config_get_ioc_pg8(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1382         *mpi_reply, Mpi2IOCPage8_t *config_page);
1383 int mpt3sas_config_get_expander_pg0(struct MPT3SAS_ADAPTER *ioc,
1384         Mpi2ConfigReply_t *mpi_reply, Mpi2ExpanderPage0_t *config_page,
1385         u32 form, u32 handle);
1386 int mpt3sas_config_get_expander_pg1(struct MPT3SAS_ADAPTER *ioc,
1387         Mpi2ConfigReply_t *mpi_reply, Mpi2ExpanderPage1_t *config_page,
1388         u32 phy_number, u16 handle);
1389 int mpt3sas_config_get_enclosure_pg0(struct MPT3SAS_ADAPTER *ioc,
1390         Mpi2ConfigReply_t *mpi_reply, Mpi2SasEnclosurePage0_t *config_page,
1391         u32 form, u32 handle);
1392 int mpt3sas_config_get_phy_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1393         *mpi_reply, Mpi2SasPhyPage0_t *config_page, u32 phy_number);
1394 int mpt3sas_config_get_phy_pg1(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
1395         *mpi_reply, Mpi2SasPhyPage1_t *config_page, u32 phy_number);
1396 int mpt3sas_config_get_raid_volume_pg1(struct MPT3SAS_ADAPTER *ioc,
1397         Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage1_t *config_page, u32 form,
1398         u32 handle);
1399 int mpt3sas_config_get_number_pds(struct MPT3SAS_ADAPTER *ioc, u16 handle,
1400         u8 *num_pds);
1401 int mpt3sas_config_get_raid_volume_pg0(struct MPT3SAS_ADAPTER *ioc,
1402         Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage0_t *config_page, u32 form,
1403         u32 handle, u16 sz);
1404 int mpt3sas_config_get_phys_disk_pg0(struct MPT3SAS_ADAPTER *ioc,
1405         Mpi2ConfigReply_t *mpi_reply, Mpi2RaidPhysDiskPage0_t *config_page,
1406         u32 form, u32 form_specific);
1407 int mpt3sas_config_get_volume_handle(struct MPT3SAS_ADAPTER *ioc, u16 pd_handle,
1408         u16 *volume_handle);
1409 int mpt3sas_config_get_volume_wwid(struct MPT3SAS_ADAPTER *ioc,
1410         u16 volume_handle, u64 *wwid);
1411
1412 /* ctl shared API */
1413 extern struct device_attribute *mpt3sas_host_attrs[];
1414 extern struct device_attribute *mpt3sas_dev_attrs[];
1415 void mpt3sas_ctl_init(ushort hbas_to_enumerate);
1416 void mpt3sas_ctl_exit(ushort hbas_to_enumerate);
1417 u8 mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
1418         u32 reply);
1419 void mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase);
1420 u8 mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc,
1421         u8 msix_index, u32 reply);
1422 void mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
1423         Mpi2EventNotificationReply_t *mpi_reply);
1424
1425 void mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc,
1426         u8 bits_to_regsiter);
1427 int mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
1428         u8 *issue_reset);
1429
1430 /* transport shared API */
1431 extern struct scsi_transport_template *mpt3sas_transport_template;
1432 u8 mpt3sas_transport_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
1433         u32 reply);
1434 struct _sas_port *mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc,
1435         u16 handle, u64 sas_address);
1436 void mpt3sas_transport_port_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
1437         u64 sas_address_parent);
1438 int mpt3sas_transport_add_host_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy
1439         *mpt3sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev);
1440 int mpt3sas_transport_add_expander_phy(struct MPT3SAS_ADAPTER *ioc,
1441         struct _sas_phy *mpt3sas_phy, Mpi2ExpanderPage1_t expander_pg1,
1442         struct device *parent_dev);
1443 void mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc,
1444         u64 sas_address, u16 handle, u8 phy_number, u8 link_rate);
1445 extern struct sas_function_template mpt3sas_transport_functions;
1446 extern struct scsi_transport_template *mpt3sas_transport_template;
1447 extern int scsi_internal_device_block(struct scsi_device *sdev);
1448 extern int scsi_internal_device_unblock(struct scsi_device *sdev,
1449                                 enum scsi_device_state new_state);
1450 /* trigger data externs */
1451 void mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc,
1452         struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data);
1453 void mpt3sas_process_trigger_data(struct MPT3SAS_ADAPTER *ioc,
1454         struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data);
1455 void mpt3sas_trigger_master(struct MPT3SAS_ADAPTER *ioc,
1456         u32 tigger_bitmask);
1457 void mpt3sas_trigger_event(struct MPT3SAS_ADAPTER *ioc, u16 event,
1458         u16 log_entry_qualifier);
1459 void mpt3sas_trigger_scsi(struct MPT3SAS_ADAPTER *ioc, u8 sense_key,
1460         u8 asc, u8 ascq);
1461 void mpt3sas_trigger_mpi(struct MPT3SAS_ADAPTER *ioc, u16 ioc_status,
1462         u32 loginfo);
1463
1464 /* warpdrive APIs */
1465 u8 mpt3sas_get_num_volumes(struct MPT3SAS_ADAPTER *ioc);
1466 void mpt3sas_init_warpdrive_properties(struct MPT3SAS_ADAPTER *ioc,
1467         struct _raid_device *raid_device);
1468 u8
1469 mpt3sas_scsi_direct_io_get(struct MPT3SAS_ADAPTER *ioc, u16 smid);
1470 void
1471 mpt3sas_scsi_direct_io_set(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 direct_io);
1472 void
1473 mpt3sas_setup_direct_io(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
1474         struct _raid_device *raid_device, Mpi2SCSIIORequest_t *mpi_request,
1475         u16 smid);
1476
1477 /* NCQ Prio Handling Check */
1478 bool scsih_ncq_prio_supp(struct scsi_device *sdev);
1479
1480 #endif /* MPT3SAS_BASE_H_INCLUDED */