linux/Documentation/scsi/ChangeLog.megaraid_sas
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   1Release Date    : Thu. Jun 19, 2014 17:00:00 PST 2014 -
   2                        (emaild-id:megaraidlinux@lsi.com)
   3                        Adam Radford
   4                        Kashyap Desai
   5                        Sumit Saxena
   6                        Uday Lingala
   7Current Version : 06.803.02.00-rc1
   8Old Version     : 06.803.01.00-rc1
   9    1. Fix reset_mutex leak in megasas_reset_fusion().
  10    2. Remove unused variables in megasas_instance.
  11    3. Fix LD/VF affiliation parsing.
  12    4. Add missing initial call to megasas_get_ld_vf_affiliation().
  13    5. Version and Changelog update.
  14-------------------------------------------------------------------------------
  15Release Date    : Mon. Mar 10, 2014 17:00:00 PST 2014 -
  16                        (emaild-id:megaraidlinux@lsi.com)
  17                        Adam Radford
  18                        Kashyap Desai
  19                        Sumit Saxena
  20Current Version : 06.803.01.00-rc1
  21Old Version     : 06.700.06.00-rc1
  22    1. Load correct raid context timeout value for multipathing & clustering.
  23    2. Fix megasas_ioc_init_fusion to use local stack variable.
  24    3. Return leaked MPT frames to MPT command pool.
  25    4. Add Dell PowerEdge VRTX SR-IOV VF device support.
  26    5. Version and Changelog update.
  27-------------------------------------------------------------------------------
  28Release Date    : Sat. Aug 31, 2013 17:00:00 PST 2013 -
  29                        (emaild-id:megaraidlinux@lsi.com)
  30                        Adam Radford
  31                        Kashyap Desai
  32                        Sumit Saxena
  33Current Version : 06.700.06.00-rc1
  34Old Version     : 06.600.18.00-rc1
  35    1. Add High Availability clustering support using shared Logical Disks.
  36    2. Version and Changelog update.
  37-------------------------------------------------------------------------------
  38Release Date    : Wed. May 15, 2013 17:00:00 PST 2013 -
  39                        (emaild-id:megaraidlinux@lsi.com)
  40                        Adam Radford
  41                        Kashyap Desai
  42                        Sumit Saxena
  43Current Version : 06.600.18.00-rc1
  44Old Version     : 06.506.00.00-rc1
  45    1. Return DID_ERROR for scsi io, when controller is in critical h/w error.
  46    2. Fix the interrupt mask for Gen2 controller.
  47    3. Update balance count in driver to be in sync of firmware.
  48    4. Free event detail memory without device ID check.
  49    5. Set IO request timeout value provided by OS timeout for Tape devices.
  50    6. Add support for MegaRAID Fury (device ID-0x005f) 12Gb/s controllers.
  51    7. Add support to display Customer branding details in syslog.
  52    8. Set IoFlags to enable Fast Path for JBODs for Invader/Fury(12 Gb/s)
  53    controllers.
  54    9. Add support for Extended MSI-x vectors for Invader and Fury(12Gb/s
  55    HBA).
  56    10.Add support for Uneven Span PRL11.
  57    11.Add support to differentiate between iMR and MR Firmware.
  58    12.Version and Changelog update.
  59-------------------------------------------------------------------------------
  60Release Date    : Sat. Feb 9, 2013 17:00:00 PST 2013 -
  61                        (emaild-id:megaraidlinux@lsi.com)
  62                        Adam Radford
  63Current Version : 06.506.00.00-rc1
  64Old Version     : 06.504.01.00-rc1
  65    1. Add 4k FastPath DIF support.
  66    2. Don't load DevHandle unless FastPath enabled.
  67    3. Version and Changelog update.
  68-------------------------------------------------------------------------------
  69Release Date    : Mon. Oct 1, 2012 17:00:00 PST 2012 -
  70                        (emaild-id:megaraidlinux@lsi.com)
  71                        Adam Radford
  72Current Version : 06.504.01.00-rc1
  73Old Version     : 00.00.06.18-rc1
  74    1. Removed un-needed completion_lock spinlock calls.
  75    2. Add module param for configurable MSI-X vector count.
  76    3. Load io_request DataLength in bytes.
  77    4. Add array boundary check for SystemPD.
  78    5. Add SystemPD FastPath support.
  79    6. Remove duplicate code.
  80    7. Version, Changelog, Copyright update.
  81-------------------------------------------------------------------------------
  82Release Date    : Tue. Jun 17, 2012 17:00:00 PST 2012 -
  83                        (emaild-id:megaraidlinux@lsi.com)
  84                        Adam Radford/Kashyap Desai
  85Current Version : 00.00.06.18-rc1
  86Old Version     : 00.00.06.15-rc1
  87    1. Fix Copyright dates.
  88    2. Add throttlequeuedepth module parameter.
  89    3. Add resetwaittime module parameter.
  90    4. Move poll_aen_lock initializer.
  91-------------------------------------------------------------------------------
  92Release Date    : Mon. Mar 19, 2012 17:00:00 PST 2012 -
  93                        (emaild-id:megaraidlinux@lsi.com)
  94                        Adam Radford
  95Current Version : 00.00.06.15-rc1
  96Old Version     : 00.00.06.14-rc1
  97    1. Optimize HostMSIxVectors setting.
  98    2. Add fpRead/WriteCapable, fpRead/WriteAcrossStripe checks.
  99-------------------------------------------------------------------------------
 100Release Date    : Fri. Jan 6, 2012 17:00:00 PST 2010 -
 101                        (emaild-id:megaraidlinux@lsi.com)
 102                        Adam Radford
 103Current Version : 00.00.06.14-rc1
 104Old Version     : 00.00.06.12-rc1
 105    1. Fix reglockFlags for degraded raid5/6 for MR 9360/9380.
 106    2. Mask off flags in ioctl path to prevent memory scribble with older
 107       MegaCLI versions.
 108    3. Remove poll_mode_io module parameter, sysfs node, and associated code.
 109-------------------------------------------------------------------------------
 110Release Date    : Wed. Oct 5, 2011 17:00:00 PST 2010 -
 111                        (emaild-id:megaraidlinux@lsi.com)
 112                        Adam Radford
 113Current Version : 00.00.06.12-rc1
 114Old Version     : 00.00.05.40-rc1
 115    1. Continue booting immediately if FW in FAULT at driver load time.
 116    2. Increase default cmds per lun to 256.
 117    3. Fix mismatch in megasas_reset_fusion() mutex lock-unlock.
 118    4. Remove some un-necessary code.
 119    5. Clear state change interrupts for Fusion/Invader.
 120    6. Clear FUSION_IN_RESET before enabling interrupts.
 121    7. Add support for MegaRAID 9360/9380 12GB/s controllers.
 122    8. Add multiple MSI-X vector/multiple reply queue support.
 123    9. Add driver workaround for PERC5/1068 kdump kernel panic.
 124-------------------------------------------------------------------------------
 125Release Date    : Tue. Jul 26, 2011 17:00:00 PST 2010 -
 126                        (emaild-id:megaraidlinux@lsi.com)
 127                        Adam Radford
 128Current Version : 00.00.05.40-rc1
 129Old Version     : 00.00.05.38-rc1
 130    1. Fix FastPath I/O to work with degraded RAID 1.
 131    2. Add .change_queue_depth support.
 132-------------------------------------------------------------------------------
 133Release Date    : Wed. May 11, 2011 17:00:00 PST 2010 -
 134                        (emaild-id:megaraidlinux@lsi.com)
 135                        Adam Radford
 136Current Version : 00.00.05.38-rc1
 137Old Version     : 00.00.05.34-rc1
 138    1. Remove MSI-X black list, use MFI_REG_STATE.ready.msiEnable.
 139    2. Remove un-used function megasas_return_cmd_for_smid().
 140    3. Check MFI_REG_STATE.fault.resetAdapter in megasas_reset_fusion().
 141    4. Disable interrupts/free_irq() in megasas_shutdown().
 142    5. Fix bug where AENs could be lost in probe() and resume().
 143    6. Convert 6,10,12 byte CDB's to 16 byte CDB for large LBA's for FastPath
 144       IO.
 145    7. Add 1078 OCR support.
 146-------------------------------------------------------------------------------
 147Release Date    : Thu. Feb 24, 2011 17:00:00 PST 2010 -
 148                        (emaild-id:megaraidlinux@lsi.com)
 149                        Adam Radford
 150Current Version : 00.00.05.34-rc1
 151Old Version     : 00.00.05.29-rc1
 152    1. Fix some failure gotos from megasas_probe_one(), etc.
 153    2. Add missing check_and_restore_queue_depth() call in
 154       complete_cmd_fusion().
 155    3. Enable MSI-X before calling megasas_init_fw().
 156    4. Call tasklet_schedule() even if outbound_intr_status == 0 for MFI based
 157       boards in MSI-X mode.
 158    5. Fix megasas_probe_one() to clear PCI_MSIX_FLAGS_ENABLE in msi control
 159       register in kdump kernel.
 160    6. Fix megasas_get_cmd() to only print "Command pool empty" if
 161       megasas_dbg_lvl is set.
 162    7. Fix megasas_build_dcdb_fusion() to not filter by TYPE_DISK.
 163    8. Fix megasas_build_dcdb_fusion() to use io_request->LUN[1] field.
 164    9. Add MR_EVT_CFG_CLEARED to megasas_aen_polling().
 165    10. Fix tasklet_init() in megasas_init_fw() to use instancet->tasklet.
 166    11. Fix fault state handling in megasas_transition_to_ready().
 167    12. Fix max_sectors setting for IEEE SGL's.
 168    13. Fix iMR OCR support to work correctly.
 169-------------------------------------------------------------------------------
 170Release Date    : Tues.  Dec 14, 2010 17:00:00 PST 2010 -
 171                        (emaild-id:megaraidlinux@lsi.com)
 172                        Adam Radford
 173Current Version : 00.00.05.29-rc1
 174Old Version     : 00.00.04.31-rc1
 175    1. Rename megaraid_sas.c to megaraid_sas_base.c.
 176    2. Update GPL headers.
 177    3. Add MSI-X support and 'msix_disable' module parameter.
 178    4. Use lowest memory bar (for SR-IOV VF support).
 179    5. Add struct megasas_instance_temlate changes, and change all code to use
 180       new instance entries:
 181
 182       irqreturn_t (*service_isr )(int irq, void *devp);
 183       void (*tasklet)(unsigned long);
 184       u32 (*init_adapter)(struct megasas_instance *);
 185       u32 (*build_and_issue_cmd) (struct megasas_instance *,
 186       struct scsi_cmnd *);
 187       void (*issue_dcmd) (struct megasas_instance *instance,
 188                              struct megasas_cmd *cmd);
 189
 190   6. Add code to support MegaRAID 9265/9285 controllers device id (0x5b).
 191-------------------------------------------------------------------------------
 1921 Release Date    : Thur.  May 03, 2010 09:12:45 PST 2009 -
 193                        (emaild-id:megaraidlinux@lsi.com)
 194                        Bo Yang
 195
 1962 Current Version : 00.00.04.31-rc1
 1973 Older Version   : 00.00.04.17.1-rc1
 198
 1991.      Add the Online Controller Reset (OCR) to the Driver.
 200        OCR is the new feature for megaraid_sas driver which
 201        will allow the fw to do the chip reset which will not
 202        affect the OS behavior.
 203
 204        To add the OCR support, driver need to do:
 205                a). reset the controller chips -- Xscale and Gen2 which
 206                will change the function calls and add the reset function
 207                related to this two chips.
 208
 209                b). during the reset, driver will store the pending cmds
 210                which not returned by FW to driver's pending queue.  Driver
 211                will re-issue those pending cmds again to FW after the OCR
 212                finished.
 213
 214                c). In driver's timeout routine, driver will report to
 215                OS as reset. Also driver's queue routine will block the
 216                cmds until the OCR finished.
 217
 218                d). in Driver's ISR routine, if driver get the FW state as
 219                state change, FW in Failure status and FW support online controller
 220                reset (OCR), driver will start to do the controller reset.
 221
 222                e). In driver's IOCTL routine, the application cmds will wait for the
 223                OCR to finish, then issue the cmds to FW.
 224
 225                f). Before driver kill adapter, driver will do last chance of
 226                OCR to see if driver can bring back the FW.
 227
 2282.      Add the support update flag to the driver to tell LSI megaraid_sas
 229        application which driver will support the device update.  So application
 230        will not need to do the device update after application add/del the device
 231        from the system.
 2323.      In driver's timeout routine, driver will do three time reset if fw is in
 233        failed state.  Driver will kill adapter if can't bring back FW after the
 234        this three times reset.
 2354.      Add the input parameter max_sectors to 1MB support to our GEN2 controller.
 236        customer can use the input parameter max_sectors to add 1MB support to GEN2
 237        controller.
 238
 2391 Release Date    : Thur.  Oct 29, 2009 09:12:45 PST 2009 -
 240                        (emaild-id:megaraidlinux@lsi.com)
 241                        Bo Yang
 242
 2432 Current Version : 00.00.04.17.1-rc1
 2443 Older Version   : 00.00.04.12
 245
 2461.      Add the pad_0 in mfi frame structure to 0 to fix the
 247        context value larger than 32bit value issue.
 248
 2492.      Add the logic drive list to the driver.  Driver will
 250        keep the logic drive list internal after driver load.
 251
 2523.      driver fixed the device update issue after get the AEN
 253        PD delete/ADD, LD add/delete from FW.
 254
 2551 Release Date    : Tues.  July 28, 2009 10:12:45 PST 2009 -
 256                        (emaild-id:megaraidlinux@lsi.com)
 257                        Bo Yang
 258
 2592 Current Version : 00.00.04.12
 2603 Older Version   : 00.00.04.10
 261
 2621.      Change the AEN sys PD update from scsi_scan to
 263        scsi_add_device and scsi_remove_device.
 2642.      Takeoff the debug print-out in aen_polling routine.
 265
 2661 Release Date    : Thur.  July 02, 2009 10:12:45 PST 2009 -
 267                        (emaild-id:megaraidlinux@lsi.com)
 268                        Bo Yang
 269
 2702 Current Version : 00.00.04.10
 2713 Older Version   : 00.00.04.08
 272
 2731.      Add the 3 mins timeout during the controller initialize.
 2742.      Add the fix for 64bit sense date errors.
 275
 2761 Release Date    : Tues. May 05, 2009 10:12:45 PST 2009 -
 277                        (emaild-id:megaraidlinux@lsi.com)
 278                        Bo Yang
 279
 2802 Current Version : 00.00.04.08
 2813 Older Version   : 00.00.04.06
 282
 2831.      Add the fix of pending in FW after deleted the logic drives.
 2842.      Add the fix of deallocating memory after get pdlist.
 285
 2861 Release Date    : Tues. March 26, 2009 10:12:45 PST 2009 -
 287                        (emaild-id:megaraidlinux@lsi.com)
 288                        Bo Yang
 289
 2902 Current Version : 00.00.04.06
 2913 Older Version   : 00.00.04.04
 292
 2931.      Add the fix of the driver cmd empty fix of the driver cmd empty.
 2942.      Add the fix of the driver MSM AEN CMD cause the system slow.
 295
 2961 Release Date    : Tues. March 03, 2009 10:12:45 PST 2009 -
 297                        (emaild-id:megaraidlinux@lsi.com)
 298                        Bo Yang
 299
 3002 Current Version : 00.00.04.04
 3013 Older Version   : 00.00.04.01
 302
 3031.      Add the Tape drive fix to the driver: If the command is for
 304        the tape device, set the pthru timeout to the os layer timeout value.
 305
 3062.      Add Poll_wait mechanism to Gen-2 Linux driv.
 307                In the aen handler, driver needs to wakeup poll handler similar to
 308                the way it raises SIGIO.
 309
 3103.      Add new controller new SAS2 support to the driver.
 311
 3124.      Report the unconfigured PD (system PD) to OS.
 313
 3145.      Add the IEEE SGL support to the driver
 315
 3166.      Reasign the Application cmds to SAS2 controller
 317
 3181 Release Date    : Thur.July. 24 11:41:51 PST 2008 -
 319                       (emaild-id:megaraidlinux@lsi.com)
 320                       Sumant Patro
 321                       Bo Yang
 322
 3232 Current Version : 00.00.04.01
 3243 Older Version   : 00.00.03.22
 325
 3261. Add the new controller (0078, 0079) support to the driver
 327       Those controllers are LSI's next generatation(gen2) SAS controllers.
 328
 3291 Release Date    : Mon.June. 23 10:12:45 PST 2008 -
 330                       (emaild-id:megaraidlinux@lsi.com)
 331                       Sumant Patro
 332                       Bo Yang
 333
 3342 Current Version : 00.00.03.22
 3353 Older Version   : 00.00.03.20
 336
 3371. Add shutdown DCMD cmd to the shutdown routine to make FW shutdown proper.
 3382. Unexpected interrupt occurs in HWR Linux driver, add the dumy readl pci flush will fix this issue.
 339
 3401 Release Date    : Mon. March 10 11:02:31 PDT 2008 -
 341                        (emaild-id:megaraidlinux@lsi.com)
 342                        Sumant Patro
 343                        Bo Yang
 344
 3452 Current Version : 00.00.03.20-RC1
 3463 Older Version   : 00.00.03.16
 347
 3481. Rollback the sense info implementation
 349        Sense buffer ptr data type in the ioctl path is reverted back
 350        to u32 * as in previous versions of driver.
 351
 3522. Fixed the driver frame count.
 353        When Driver sent wrong frame count to firmware.  As this
 354        particular command is sent to drive, FW is seeing continuous
 355        chip resets and so the command will timeout.
 356
 3573. Add the new controller(1078DE) support to the driver
 358        and Increase the max_wait to 60 from 10 in the controller
 359        operational status.  With this max_wait increase, driver will
 360        make sure the FW will   finish the pending cmd for KDUMP case.
 361
 3621 Release Date    : Thur. Nov. 07 16:30:43 PST 2007 -
 363                        (emaild-id:megaraidlinux@lsi.com)
 364                        Sumant Patro
 365                        Bo Yang
 366
 3672 Current Version : 00.00.03.16
 3683 Older Version   : 00.00.03.15
 369
 3701. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take
 371        a max of 60 seconds to respond to the INIT cmd.
 372
 3731 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
 374                        (emaild-id:megaraidlinux@lsi.com)
 375                        Sumant Patro
 376                        Bo Yang
 377
 3782 Current Version : 00.00.03.15
 3793 Older Version   : 00.00.03.14
 380
 3811. Added module parameter "poll_mode_io" to support for "polling"
 382        (reduced interrupt operation).  In this mode, IO completion
 383        interrupts are delayed. At the end of initiating IOs, the
 384        driver schedules for cmd completion if there are pending cmds
 385        to be completed.  A timer-based interrupt has also been added
 386        to prevent IO completion processing from being delayed
 387        indefinitely in the case that no new IOs are initiated.
 388
 3891 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
 390                        (emaild-id:megaraidlinux@lsi.com)
 391                        Sumant Patro
 392                        Bo Yang
 393
 3942 Current Version : 00.00.03.14
 3953 Older Version   : 00.00.03.13
 396
 3971. Setting the max_sectors_per_req based on max SGL supported by the
 398        FW. Prior versions calculated this value from controller info
 399        (max_sectors_1, max_sectors_2). For certain controllers/FW,
 400        this was resulting in a value greater than max SGL supported
 401        by the FW. Issue was first reported by users running LUKS+XFS
 402        with megaraid_sas.  Thanks to RB for providing the logs and
 403        duplication steps that helped to get to the root cause of the
 404        issue.  2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from
 405        10. FW may take a max of 60 seconds to respond to the INIT
 406        cmd.
 407
 4081 Release Date    : Fri. June. 15 16:30:43 PST 2007 -
 409                        (emaild-id:megaraidlinux@lsi.com)
 410                        Sumant Patro
 411                        Bo Yang
 412
 4132 Current Version : 00.00.03.13
 4143 Older Version   : 00.00.03.12
 415
 4161. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io.
 417
 418On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote:
 419It looks like megaraid_sas at least needs this to throttle its commands
 420> as they begin to time out.  The code keeps the existing transport
 421> template use of eh_timed_out (and allows the transport to override the
 422> host if they both have this callback).
 423>
 424> James
 425
 4261 Release Date    : Sat May. 12 16:30:43 PST 2007 -
 427                        (emaild-id:megaraidlinux@lsi.com)
 428                        Sumant Patro
 429                        Bo Yang
 430
 4312 Current Version : 00.00.03.12
 4323 Older Version   : 00.00.03.11
 433
 4341.  When MegaSAS driver receives reset call from OS, driver waits in reset
 435routine for max 3 minutes for all pending command completion. Now driver will
 436call completion routine every 5 seconds from the reset routine instead of
 437waiting for depending on cmd completion from isr path.
 438
 4391 Release Date    : Mon Apr. 30 10:25:52 PST 2007 -
 440                        (emaild-id:megaraidlinux@lsi.com)
 441                        Sumant Patro
 442                        Bo Yang
 443
 4442 Current Version : 00.00.03.11
 4453 Older Version   : 00.00.03.09
 446
 447        1. Memory Manager for IOCTL removed for 2.6 kernels.
 448           pci_alloc_consistent replaced by dma_alloc_coherent. With this
 449           change there is no need of memory manager in the driver code
 450
 451        On Wed, 2007-02-07 at 13:30 -0800, Andrew Morton wrote:
 452        > I suspect all this horror is due to stupidity in the DMA API.
 453        >
 454        > pci_alloc_consistent() just goes and assumes GFP_ATOMIC, whereas
 455        > the caller (megasas_mgmt_fw_ioctl) would have been perfectly happy
 456        > to use GFP_KERNEL.
 457        >
 458        > I bet this fixes it
 459
 460        It does, but the DMA API was expanded to cope with this exact case, so
 461        use dma_alloc_coherent() directly in the megaraid code instead.  The dev
 462        is just &pci_dev->dev.
 463
 464        James <James.Bottomley@SteelEye.com>
 465
 466        3. SYNCHRONIZE_CACHE is not supported by FW and thus blocked by driver.
 467        4. Hibernation support added
 468        5. Performing diskdump while running IO in RHEL 4 was failing. Fixed.
 469
 4701 Release Date    : Fri Feb. 09 14:36:28 PST 2007 -
 471                        (emaild-id:megaraidlinux@lsi.com)
 472                        Sumant Patro
 473                        Bo Yang
 474
 4752 Current Version : 00.00.03.09
 4763 Older Version   : 00.00.03.08
 477
 478i.      Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
 479
 480        The driver now waits for 10 seconds to elapse instead of 5 (as in
 481        previous release) to resume IO.
 482
 4831 Release Date    : Mon Feb. 05 11:35:24 PST 2007 -
 484                        (emaild-id:megaraidlinux@lsi.com)
 485                        Sumant Patro
 486                        Bo Yang
 4872 Current Version : 00.00.03.08
 4883 Older Version   : 00.00.03.07
 489
 490i.      Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
 491
 492        Fix:    The driver is now throttling IO.
 493        Checks added in megasas_queue_command to know if FW is able to
 494        process commands within timeout period. If number of retries
 495        is 2 or greater,the driver stops sending cmd to FW temporarily. IO is
 496        resumed if pending cmd count reduces to 16 or 5 seconds has elapsed
 497        from the time cmds were last sent to FW.
 498
 499ii.     FW enables WCE bit in Mode Sense cmd for drives that are configured
 500        as WriteBack. The OS may send "SYNCHRONIZE_CACHE" cmd when Logical
 501        Disks are exposed with WCE=1. User is advised to enable Write Back
 502        mode only when the controller has battery backup. At this time
 503        Synhronize cache is not supported by the FW. Driver will short-cycle
 504        the cmd and return success without sending down to FW.
 505
 5061 Release Date    : Sun Jan. 14 11:21:32 PDT 2007 -
 507                 Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
 5082 Current Version : 00.00.03.07
 5093 Older Version   : 00.00.03.06
 510
 511i.      bios_param entry added in scsi_host_template that returns disk geometry
 512        information.
 513
 5141 Release Date    : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
 5152 Current Version : 00.00.03.06
 5163 Older Version   : 00.00.03.05
 517
 5181. Added new memory management module to support the IOCTL memory allocation. For IOCTL we try to allocate from the memory pool created during driver initialization. If mem pool is empty then we allocate at run time.
 5192. Added check in megasas_queue_command and dpc/isr routine to see if we have already declared adapter dead
 520   (hw_crit_error=1). If hw_crit_error==1, now we donot accept any processing of pending cmds/accept any cmd from OS
 521
 5221 Release Date    : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5232 Current Version : 00.00.03.05
 5243 Older Version   : 00.00.03.04
 525
 526i.      PCI_DEVICE macro used
 527
 528        Convert the pci_device_id-table of the megaraid_sas-driver to the PCI_DEVICE-macro, to safe some lines.
 529
 530                - Henrik Kretzschmar <henne@nachtwindheim.de>
 531ii.     All compiler warnings removed
 532iii.    megasas_ctrl_info struct reverted to 3.02 release
 533iv.     Default value of megasas_dbg_lvl set to 0
 534v.      Removing in megasas_exit the sysfs entry created for megasas_dbg_lvl
 535vi.     In megasas_teardown_frame_pool(), cmd->frame was passed instead of
 536        cmd->sense to pci_pool_free. Fixed. Bug was pointed out by
 537        Eric Sesterhenn
 538
 5391 Release Date    : Wed Sep 13 14:22:51 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5402 Current Version : 00.00.03.04
 5413 Older Version   : 00.00.03.03
 542
 543i.      Added Reboot notify
 544ii.     Reduced by 1 max cmds sent to FW from Driver to make the reply_q_sz same
 545        as Max Cmds FW can support
 546
 5471 Release Date    : Tue Aug 22 16:33:14 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5482 Current Version : 00.00.03.03
 5493 Older Version   : 00.00.03.02
 550
 551i.      Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead.
 552        New variable added to set dbg level.
 553ii.     Disable interrupt made as fn pointer as they are different for 1068 / 1078
 554iii.    Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and
 555        3 SGE for 32 bit SGL
 556iv.     Tasklet added for cmd completion
 557v.      If FW in operational state before firing INIT, now we send RESET Flag to FW instead of just READY. This is used to do soft reset.
 558vi.     megasas_ctrl_prop structure updated (based on FW struct)
 559vii.    Added print : FW now in Ready State during initialization
 560
 5611 Release Date    : Sun Aug 06 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5622 Current Version : 00.00.03.02
 5633 Older Version   : 00.00.03.01
 564
 565i.      Added FW tranistion state for Hotplug scenario
 566
 5671 Release Date    : Sun May 14 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5682 Current Version : 00.00.03.01
 5693 Older Version   : 00.00.02.04
 570
 571i.      Added support for ZCR controller.
 572
 573                New device id 0x413 added.
 574
 575ii.     Bug fix : Disable controller interrupt before firing INIT cmd to FW.
 576
 577                Interrupt is enabled after required initialization is over.
 578                This is done to ensure that driver is ready to handle interrupts when
 579                it is generated by the controller.
 580
 581                -Sumant Patro <Sumant.Patro@lsil.com>
 582
 5831 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5842 Current Version : 00.00.02.04
 5853 Older Version   : 00.00.02.04
 586
 587i.      Remove superfluous instance_lock
 588
 589        gets rid of the otherwise superfluous instance_lock and avoids an unsafe
 590        unsynchronized access in the error handler.
 591
 592                - Christoph Hellwig <hch@lst.de>
 593
 594
 5951 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5962 Current Version : 00.00.02.04
 5973 Older Version   : 00.00.02.04
 598
 599i.      Support for 1078 type (ppc IOP) controller, device id : 0x60 added.
 600        During initialization, depending on the device id, the template members
 601        are initialized with function pointers specific to the ppc or
 602        xscale controllers.
 603
 604                -Sumant Patro <Sumant.Patro@lsil.com>
 605                
 6061 Release Date    : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro
 607                                                        <Sumant.Patro@lsil.com>
 6082 Current Version : 00.00.02.04
 6093 Older Version   : 00.00.02.02
 610i.      Register 16 byte CDB capability with scsi midlayer
 611
 612        "This patch properly registers the 16 byte command length capability of the
 613        megaraid_sas controlled hardware with the scsi midlayer. All megaraid_sas
 614        hardware supports 16 byte CDB's."
 615
 616                -Joshua Giles <joshua_giles@dell.com>
 617
 6181 Release Date    : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 6192 Current Version : 00.00.02.02
 6203 Older Version   : 00.00.02.01
 621
 622i.      New template defined to represent each family of controllers (identified by processor used).
 623        The template will have definitions that will be initialised to appropriate values for a specific family of controllers. The template definition has four function pointers. During driver initialisation the function pointers will be set based on the controller family type. This change is done to support new controllers that has different processors and thus different register set.
 624
 625                -Sumant Patro <Sumant.Patro@lsil.com>
 626
 6271 Release Date    : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com>
 6282 Current Version : 00.00.02.00-rc4
 6293 Older Version   : 00.00.02.01
 630
 631i.      Code reorganized to remove code duplication in megasas_build_cmd.
 632
 633        "There's a lot of duplicate code megasas_build_cmd.  Move that out of the different codepaths and merge the reminder of megasas_build_cmd into megasas_queue_command"
 634
 635                - Christoph Hellwig <hch@lst.de>
 636
 637ii.     Defined MEGASAS_IOC_FIRMWARE32 for code paths that handles 32 bit applications in 64 bit systems.
 638
 639        "MEGASAS_IOC_FIRMWARE can't be redefined if CONFIG_COMPAT is set, we need to define a MEGASAS_IOC_FIRMWARE32 define so native binaries continue to work"
 640
 641                - Christoph Hellwig <hch@lst.de>
 642