linux/Documentation/scsi/ChangeLog.megaraid_sas
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   1Release Date    : Wed. May 15, 2013 17:00:00 PST 2013 -
   2                        (emaild-id:megaraidlinux@lsi.com)
   3                        Adam Radford
   4                        Kashyap Desai
   5                        Sumit Saxena
   6Current Version : 06.600.18.00-rc1
   7Old Version     : 06.506.00.00-rc1
   8    1. Return DID_ERROR for scsi io, when controller is in critical h/w error.
   9    2. Fix the interrupt mask for Gen2 controller.
  10    3. Update balance count in driver to be in sync of firmware.
  11    4. Free event detail memory without device ID check.
  12    5. Set IO request timeout value provided by OS timeout for Tape devices.
  13    6. Add support for MegaRAID Fury (device ID-0x005f) 12Gb/s controllers.
  14    7. Add support to display Customer branding details in syslog.
  15    8. Set IoFlags to enable Fast Path for JBODs for Invader/Fury(12 Gb/s)
  16    controllers.
  17    9. Add support for Extended MSI-x vectors for Invader and Fury(12Gb/s
  18    HBA).
  19    10.Add support for Uneven Span PRL11.
  20    11.Add support to differentiate between iMR and MR Firmware.
  21    12.Version and Changelog update.
  22-------------------------------------------------------------------------------
  23Release Date    : Sat. Feb 9, 2013 17:00:00 PST 2013 -
  24                        (emaild-id:megaraidlinux@lsi.com)
  25                        Adam Radford
  26Current Version : 06.506.00.00-rc1
  27Old Version     : 06.504.01.00-rc1
  28    1. Add 4k FastPath DIF support.
  29    2. Dont load DevHandle unless FastPath enabled.
  30    3. Version and Changelog update.
  31-------------------------------------------------------------------------------
  32Release Date    : Mon. Oct 1, 2012 17:00:00 PST 2012 -
  33                        (emaild-id:megaraidlinux@lsi.com)
  34                        Adam Radford
  35Current Version : 06.504.01.00-rc1
  36Old Version     : 00.00.06.18-rc1
  37    1. Removed un-needed completion_lock spinlock calls.
  38    2. Add module param for configurable MSI-X vector count.
  39    3. Load io_request DataLength in bytes.
  40    4. Add array boundary check for SystemPD.
  41    5. Add SystemPD FastPath support.
  42    6. Remove duplicate code.
  43    7. Version, Changelog, Copyright update.
  44-------------------------------------------------------------------------------
  45Release Date    : Tue. Jun 17, 2012 17:00:00 PST 2012 -
  46                        (emaild-id:megaraidlinux@lsi.com)
  47                        Adam Radford/Kashyap Desai
  48Current Version : 00.00.06.18-rc1
  49Old Version     : 00.00.06.15-rc1
  50    1. Fix Copyright dates.
  51    2. Add throttlequeuedepth module parameter.
  52    3. Add resetwaittime module parameter.
  53    4. Move poll_aen_lock initializer.
  54-------------------------------------------------------------------------------
  55Release Date    : Mon. Mar 19, 2012 17:00:00 PST 2012 -
  56                        (emaild-id:megaraidlinux@lsi.com)
  57                        Adam Radford
  58Current Version : 00.00.06.15-rc1
  59Old Version     : 00.00.06.14-rc1
  60    1. Optimize HostMSIxVectors setting.
  61    2. Add fpRead/WriteCapable, fpRead/WriteAcrossStripe checks.
  62-------------------------------------------------------------------------------
  63Release Date    : Fri. Jan 6, 2012 17:00:00 PST 2010 -
  64                        (emaild-id:megaraidlinux@lsi.com)
  65                        Adam Radford
  66Current Version : 00.00.06.14-rc1
  67Old Version     : 00.00.06.12-rc1
  68    1. Fix reglockFlags for degraded raid5/6 for MR 9360/9380.
  69    2. Mask off flags in ioctl path to prevent memory scribble with older
  70       MegaCLI versions.
  71    3. Remove poll_mode_io module paramater, sysfs node, and associated code.
  72-------------------------------------------------------------------------------
  73Release Date    : Wed. Oct 5, 2011 17:00:00 PST 2010 -
  74                        (emaild-id:megaraidlinux@lsi.com)
  75                        Adam Radford
  76Current Version : 00.00.06.12-rc1
  77Old Version     : 00.00.05.40-rc1
  78    1. Continue booting immediately if FW in FAULT at driver load time.
  79    2. Increase default cmds per lun to 256.
  80    3. Fix mismatch in megasas_reset_fusion() mutex lock-unlock.
  81    4. Remove some un-necessary code.
  82    5. Clear state change interrupts for Fusion/Invader.
  83    6. Clear FUSION_IN_RESET before enabling interrupts.
  84    7. Add support for MegaRAID 9360/9380 12GB/s controllers.
  85    8. Add multiple MSI-X vector/multiple reply queue support.
  86    9. Add driver workaround for PERC5/1068 kdump kernel panic.
  87-------------------------------------------------------------------------------
  88Release Date    : Tue. Jul 26, 2011 17:00:00 PST 2010 -
  89                        (emaild-id:megaraidlinux@lsi.com)
  90                        Adam Radford
  91Current Version : 00.00.05.40-rc1
  92Old Version     : 00.00.05.38-rc1
  93    1. Fix FastPath I/O to work with degraded RAID 1.
  94    2. Add .change_queue_depth support.
  95-------------------------------------------------------------------------------
  96Release Date    : Wed. May 11, 2011 17:00:00 PST 2010 -
  97                        (emaild-id:megaraidlinux@lsi.com)
  98                        Adam Radford
  99Current Version : 00.00.05.38-rc1
 100Old Version     : 00.00.05.34-rc1
 101    1. Remove MSI-X black list, use MFI_REG_STATE.ready.msiEnable.
 102    2. Remove un-used function megasas_return_cmd_for_smid().
 103    3. Check MFI_REG_STATE.fault.resetAdapter in megasas_reset_fusion().
 104    4. Disable interrupts/free_irq() in megasas_shutdown().
 105    5. Fix bug where AENs could be lost in probe() and resume().
 106    6. Convert 6,10,12 byte CDB's to 16 byte CDB for large LBA's for FastPath
 107       IO.
 108    7. Add 1078 OCR support.
 109-------------------------------------------------------------------------------
 110Release Date    : Thu. Feb 24, 2011 17:00:00 PST 2010 -
 111                        (emaild-id:megaraidlinux@lsi.com)
 112                        Adam Radford
 113Current Version : 00.00.05.34-rc1
 114Old Version     : 00.00.05.29-rc1
 115    1. Fix some failure gotos from megasas_probe_one(), etc.
 116    2. Add missing check_and_restore_queue_depth() call in
 117       complete_cmd_fusion().
 118    3. Enable MSI-X before calling megasas_init_fw().
 119    4. Call tasklet_schedule() even if outbound_intr_status == 0 for MFI based
 120       boards in MSI-X mode.
 121    5. Fix megasas_probe_one() to clear PCI_MSIX_FLAGS_ENABLE in msi control
 122       register in kdump kernel.
 123    6. Fix megasas_get_cmd() to only print "Command pool empty" if
 124       megasas_dbg_lvl is set.
 125    7. Fix megasas_build_dcdb_fusion() to not filter by TYPE_DISK.
 126    8. Fix megasas_build_dcdb_fusion() to use io_request->LUN[1] field.
 127    9. Add MR_EVT_CFG_CLEARED to megasas_aen_polling().
 128    10. Fix tasklet_init() in megasas_init_fw() to use instancet->tasklet.
 129    11. Fix fault state handling in megasas_transition_to_ready().
 130    12. Fix max_sectors setting for IEEE SGL's.
 131    13. Fix iMR OCR support to work correctly.
 132-------------------------------------------------------------------------------
 133Release Date    : Tues.  Dec 14, 2010 17:00:00 PST 2010 -
 134                        (emaild-id:megaraidlinux@lsi.com)
 135                        Adam Radford
 136Current Version : 00.00.05.29-rc1
 137Old Version     : 00.00.04.31-rc1
 138    1. Rename megaraid_sas.c to megaraid_sas_base.c.
 139    2. Update GPL headers.
 140    3. Add MSI-X support and 'msix_disable' module parameter.
 141    4. Use lowest memory bar (for SR-IOV VF support).
 142    5. Add struct megasas_instance_temlate changes, and change all code to use
 143       new instance entries:
 144
 145       irqreturn_t (*service_isr )(int irq, void *devp);
 146       void (*tasklet)(unsigned long);
 147       u32 (*init_adapter)(struct megasas_instance *);
 148       u32 (*build_and_issue_cmd) (struct megasas_instance *,
 149       struct scsi_cmnd *);
 150       void (*issue_dcmd) (struct megasas_instance *instance,
 151                              struct megasas_cmd *cmd);
 152
 153   6. Add code to support MegaRAID 9265/9285 controllers device id (0x5b).
 154-------------------------------------------------------------------------------
 1551 Release Date    : Thur.  May 03, 2010 09:12:45 PST 2009 -
 156                        (emaild-id:megaraidlinux@lsi.com)
 157                        Bo Yang
 158
 1592 Current Version : 00.00.04.31-rc1
 1603 Older Version   : 00.00.04.17.1-rc1
 161
 1621.      Add the Online Controller Reset (OCR) to the Driver.
 163        OCR is the new feature for megaraid_sas driver which
 164        will allow the fw to do the chip reset which will not
 165        affact the OS behavious.
 166
 167        To add the OCR support, driver need to do:
 168                a). reset the controller chips -- Xscale and Gen2 which
 169                will change the function calls and add the reset function
 170                related to this two chips.
 171
 172                b). during the reset, driver will store the pending cmds
 173                which not returned by FW to driver's pending queue.  Driver
 174                will re-issue those pending cmds again to FW after the OCR
 175                finished.
 176
 177                c). In driver's timeout routine, driver will report to
 178                OS as reset. Also driver's queue routine will block the
 179                cmds until the OCR finished.
 180
 181                d). in Driver's ISR routine, if driver get the FW state as
 182                state change, FW in Failure status and FW support online controller
 183                reset (OCR), driver will start to do the controller reset.
 184
 185                e). In driver's IOCTL routine, the application cmds will wait for the
 186                OCR to finish, then issue the cmds to FW.
 187
 188                f). Before driver kill adapter, driver will do last chance of
 189                OCR to see if driver can bring back the FW.
 190
 1912.      Add the support update flag to the driver to tell LSI megaraid_sas
 192        application which driver will support the device update.  So application
 193        will not need to do the device update after application add/del the device
 194        from the system.
 1953.      In driver's timeout routine, driver will do three time reset if fw is in
 196        failed state.  Driver will kill adapter if can't bring back FW after the
 197        this three times reset.
 1984.      Add the input parameter max_sectors to 1MB support to our GEN2 controller.
 199        customer can use the input paramenter max_sectors to add 1MB support to GEN2
 200        controller.
 201
 2021 Release Date    : Thur.  Oct 29, 2009 09:12:45 PST 2009 -
 203                        (emaild-id:megaraidlinux@lsi.com)
 204                        Bo Yang
 205
 2062 Current Version : 00.00.04.17.1-rc1
 2073 Older Version   : 00.00.04.12
 208
 2091.      Add the pad_0 in mfi frame structure to 0 to fix the
 210        context value larger than 32bit value issue.
 211
 2122.      Add the logic drive list to the driver.  Driver will
 213        keep the logic drive list internal after driver load.
 214
 2153.      driver fixed the device update issue after get the AEN
 216        PD delete/ADD, LD add/delete from FW.
 217
 2181 Release Date    : Tues.  July 28, 2009 10:12:45 PST 2009 -
 219                        (emaild-id:megaraidlinux@lsi.com)
 220                        Bo Yang
 221
 2222 Current Version : 00.00.04.12
 2233 Older Version   : 00.00.04.10
 224
 2251.      Change the AEN sys PD update from scsi_scan to
 226        scsi_add_device and scsi_remove_device.
 2272.      Takeoff the debug print-out in aen_polling routine.
 228
 2291 Release Date    : Thur.  July 02, 2009 10:12:45 PST 2009 -
 230                        (emaild-id:megaraidlinux@lsi.com)
 231                        Bo Yang
 232
 2332 Current Version : 00.00.04.10
 2343 Older Version   : 00.00.04.08
 235
 2361.      Add the 3 mins timeout during the controller initialize.
 2372.      Add the fix for 64bit sense date errors.
 238
 2391 Release Date    : Tues. May 05, 2009 10:12:45 PST 2009 -
 240                        (emaild-id:megaraidlinux@lsi.com)
 241                        Bo Yang
 242
 2432 Current Version : 00.00.04.08
 2443 Older Version   : 00.00.04.06
 245
 2461.      Add the fix of pending in FW after deleted the logic drives.
 2472.      Add the fix of deallocating memory after get pdlist.
 248
 2491 Release Date    : Tues. March 26, 2009 10:12:45 PST 2009 -
 250                        (emaild-id:megaraidlinux@lsi.com)
 251                        Bo Yang
 252
 2532 Current Version : 00.00.04.06
 2543 Older Version   : 00.00.04.04
 255
 2561.      Add the fix of the driver cmd empty fix of the driver cmd empty.
 2572.      Add the fix of the driver MSM AEN CMD cause the system slow.
 258
 2591 Release Date    : Tues. March 03, 2009 10:12:45 PST 2009 -
 260                        (emaild-id:megaraidlinux@lsi.com)
 261                        Bo Yang
 262
 2632 Current Version : 00.00.04.04
 2643 Older Version   : 00.00.04.01
 265
 2661.      Add the Tape drive fix to the driver: If the command is for
 267        the tape device, set the pthru timeout to the os layer timeout value.
 268
 2692.      Add Poll_wait mechanism to Gen-2 Linux driv.
 270                In the aen handler, driver needs to wakeup poll handler similar to
 271                the way it raises SIGIO.
 272
 2733.      Add new controller new SAS2 support to the driver.
 274
 2754.      Report the unconfigured PD (system PD) to OS.
 276
 2775.      Add the IEEE SGL support to the driver
 278
 2796.      Reasign the Application cmds to SAS2 controller
 280
 2811 Release Date    : Thur.July. 24 11:41:51 PST 2008 -
 282                       (emaild-id:megaraidlinux@lsi.com)
 283                       Sumant Patro
 284                       Bo Yang
 285
 2862 Current Version : 00.00.04.01
 2873 Older Version   : 00.00.03.22
 288
 2891. Add the new controller (0078, 0079) support to the driver
 290       Those controllers are LSI's next generatation(gen2) SAS controllers.
 291
 2921 Release Date    : Mon.June. 23 10:12:45 PST 2008 -
 293                       (emaild-id:megaraidlinux@lsi.com)
 294                       Sumant Patro
 295                       Bo Yang
 296
 2972 Current Version : 00.00.03.22
 2983 Older Version   : 00.00.03.20
 299
 3001. Add shutdown DCMD cmd to the shutdown routine to make FW shutdown proper.
 3012. Unexpected interrupt occurs in HWR Linux driver, add the dumy readl pci flush will fix this issue.
 302
 3031 Release Date    : Mon. March 10 11:02:31 PDT 2008 -
 304                        (emaild-id:megaraidlinux@lsi.com)
 305                        Sumant Patro
 306                        Bo Yang
 307
 3082 Current Version : 00.00.03.20-RC1
 3093 Older Version   : 00.00.03.16
 310
 3111. Rollback the sense info implementation
 312        Sense buffer ptr data type in the ioctl path is reverted back
 313        to u32 * as in previous versions of driver.
 314
 3152. Fixed the driver frame count.
 316        When Driver sent wrong frame count to firmware.  As this
 317        particular command is sent to drive, FW is seeing continuous
 318        chip resets and so the command will timeout.
 319
 3203. Add the new controller(1078DE) support to the driver
 321        and Increase the max_wait to 60 from 10 in the controller
 322        operational status.  With this max_wait increase, driver will
 323        make sure the FW will   finish the pending cmd for KDUMP case.
 324
 3251 Release Date    : Thur. Nov. 07 16:30:43 PST 2007 -
 326                        (emaild-id:megaraidlinux@lsi.com)
 327                        Sumant Patro
 328                        Bo Yang
 329
 3302 Current Version : 00.00.03.16
 3313 Older Version   : 00.00.03.15
 332
 3331. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take
 334        a max of 60 seconds to respond to the INIT cmd.
 335
 3361 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
 337                        (emaild-id:megaraidlinux@lsi.com)
 338                        Sumant Patro
 339                        Bo Yang
 340
 3412 Current Version : 00.00.03.15
 3423 Older Version   : 00.00.03.14
 343
 3441. Added module parameter "poll_mode_io" to support for "polling"
 345        (reduced interrupt operation).  In this mode, IO completion
 346        interrupts are delayed. At the end of initiating IOs, the
 347        driver schedules for cmd completion if there are pending cmds
 348        to be completed.  A timer-based interrupt has also been added
 349        to prevent IO completion processing from being delayed
 350        indefinitely in the case that no new IOs are initiated.
 351
 3521 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
 353                        (emaild-id:megaraidlinux@lsi.com)
 354                        Sumant Patro
 355                        Bo Yang
 356
 3572 Current Version : 00.00.03.14
 3583 Older Version   : 00.00.03.13
 359
 3601. Setting the max_sectors_per_req based on max SGL supported by the
 361        FW. Prior versions calculated this value from controller info
 362        (max_sectors_1, max_sectors_2). For certain controllers/FW,
 363        this was resulting in a value greater than max SGL supported
 364        by the FW. Issue was first reported by users running LUKS+XFS
 365        with megaraid_sas.  Thanks to RB for providing the logs and
 366        duplication steps that helped to get to the root cause of the
 367        issue.  2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from
 368        10. FW may take a max of 60 seconds to respond to the INIT
 369        cmd.
 370
 3711 Release Date    : Fri. June. 15 16:30:43 PST 2007 -
 372                        (emaild-id:megaraidlinux@lsi.com)
 373                        Sumant Patro
 374                        Bo Yang
 375
 3762 Current Version : 00.00.03.13
 3773 Older Version   : 00.00.03.12
 378
 3791. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io.
 380
 381On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote:
 382It looks like megaraid_sas at least needs this to throttle its commands
 383> as they begin to time out.  The code keeps the existing transport
 384> template use of eh_timed_out (and allows the transport to override the
 385> host if they both have this callback).
 386>
 387> James
 388
 3891 Release Date    : Sat May. 12 16:30:43 PST 2007 -
 390                        (emaild-id:megaraidlinux@lsi.com)
 391                        Sumant Patro
 392                        Bo Yang
 393
 3942 Current Version : 00.00.03.12
 3953 Older Version   : 00.00.03.11
 396
 3971.  When MegaSAS driver receives reset call from OS, driver waits in reset
 398routine for max 3 minutes for all pending command completion. Now driver will
 399call completion routine every 5 seconds from the reset routine instead of
 400waiting for depending on cmd completion from isr path.
 401
 4021 Release Date    : Mon Apr. 30 10:25:52 PST 2007 -
 403                        (emaild-id:megaraidlinux@lsi.com)
 404                        Sumant Patro
 405                        Bo Yang
 406
 4072 Current Version : 00.00.03.11
 4083 Older Version   : 00.00.03.09
 409
 410        1. Memory Manager for IOCTL removed for 2.6 kernels.
 411           pci_alloc_consistent replaced by dma_alloc_coherent. With this
 412           change there is no need of memory manager in the driver code
 413
 414        On Wed, 2007-02-07 at 13:30 -0800, Andrew Morton wrote:
 415        > I suspect all this horror is due to stupidity in the DMA API.
 416        >
 417        > pci_alloc_consistent() just goes and assumes GFP_ATOMIC, whereas
 418        > the caller (megasas_mgmt_fw_ioctl) would have been perfectly happy
 419        > to use GFP_KERNEL.
 420        >
 421        > I bet this fixes it
 422
 423        It does, but the DMA API was expanded to cope with this exact case, so
 424        use dma_alloc_coherent() directly in the megaraid code instead.  The dev
 425        is just &pci_dev->dev.
 426
 427        James <James.Bottomley@SteelEye.com>
 428
 429        3. SYNCHRONIZE_CACHE is not supported by FW and thus blocked by driver.
 430        4. Hibernation support added
 431        5. Performing diskdump while running IO in RHEL 4 was failing. Fixed.
 432
 4331 Release Date    : Fri Feb. 09 14:36:28 PST 2007 -
 434                        (emaild-id:megaraidlinux@lsi.com)
 435                        Sumant Patro
 436                        Bo Yang
 437
 4382 Current Version : 00.00.03.09
 4393 Older Version   : 00.00.03.08
 440
 441i.      Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
 442
 443        The driver now waits for 10 seconds to elapse instead of 5 (as in
 444        previous release) to resume IO.
 445
 4461 Release Date    : Mon Feb. 05 11:35:24 PST 2007 -
 447                        (emaild-id:megaraidlinux@lsi.com)
 448                        Sumant Patro
 449                        Bo Yang
 4502 Current Version : 00.00.03.08
 4513 Older Version   : 00.00.03.07
 452
 453i.      Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
 454
 455        Fix:    The driver is now throttling IO.
 456        Checks added in megasas_queue_command to know if FW is able to
 457        process commands within timeout period. If number of retries
 458        is 2 or greater,the driver stops sending cmd to FW temporarily. IO is
 459        resumed if pending cmd count reduces to 16 or 5 seconds has elapsed
 460        from the time cmds were last sent to FW.
 461
 462ii.     FW enables WCE bit in Mode Sense cmd for drives that are configured
 463        as WriteBack. The OS may send "SYNCHRONIZE_CACHE" cmd when Logical
 464        Disks are exposed with WCE=1. User is advised to enable Write Back
 465        mode only when the controller has battery backup. At this time
 466        Synhronize cache is not supported by the FW. Driver will short-cycle
 467        the cmd and return success without sending down to FW.
 468
 4691 Release Date    : Sun Jan. 14 11:21:32 PDT 2007 -
 470                 Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
 4712 Current Version : 00.00.03.07
 4723 Older Version   : 00.00.03.06
 473
 474i.      bios_param entry added in scsi_host_template that returns disk geometry
 475        information.
 476
 4771 Release Date    : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
 4782 Current Version : 00.00.03.06
 4793 Older Version   : 00.00.03.05
 480
 4811. 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.
 4822. Added check in megasas_queue_command and dpc/isr routine to see if we have already declared adapter dead
 483   (hw_crit_error=1). If hw_crit_error==1, now we donot accept any processing of pending cmds/accept any cmd from OS
 484
 4851 Release Date    : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 4862 Current Version : 00.00.03.05
 4873 Older Version   : 00.00.03.04
 488
 489i.      PCI_DEVICE macro used
 490
 491        Convert the pci_device_id-table of the megaraid_sas-driver to the PCI_DEVICE-macro, to safe some lines.
 492
 493                - Henrik Kretzschmar <henne@nachtwindheim.de>
 494ii.     All compiler warnings removed
 495iii.    megasas_ctrl_info struct reverted to 3.02 release
 496iv.     Default value of megasas_dbg_lvl set to 0
 497v.      Removing in megasas_exit the sysfs entry created for megasas_dbg_lvl
 498vi.     In megasas_teardown_frame_pool(), cmd->frame was passed instead of
 499        cmd->sense to pci_pool_free. Fixed. Bug was pointed out by
 500        Eric Sesterhenn
 501
 5021 Release Date    : Wed Sep 13 14:22:51 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5032 Current Version : 00.00.03.04
 5043 Older Version   : 00.00.03.03
 505
 506i.      Added Reboot notify
 507ii.     Reduced by 1 max cmds sent to FW from Driver to make the reply_q_sz same
 508        as Max Cmds FW can support
 509
 5101 Release Date    : Tue Aug 22 16:33:14 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5112 Current Version : 00.00.03.03
 5123 Older Version   : 00.00.03.02
 513
 514i.      Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead.
 515        New varible added to set dbg level.
 516ii.     Disable interrupt made as fn pointer as they are different for 1068 / 1078
 517iii.    Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and
 518        3 SGE for 32 bit SGL
 519iv.     Tasklet added for cmd completion
 520v.      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.
 521vi.     megasas_ctrl_prop structure updated (based on FW struct)
 522vii.    Added print : FW now in Ready State during initialization
 523
 5241 Release Date    : Sun Aug 06 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5252 Current Version : 00.00.03.02
 5263 Older Version   : 00.00.03.01
 527
 528i.      Added FW tranistion state for Hotplug scenario
 529
 5301 Release Date    : Sun May 14 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5312 Current Version : 00.00.03.01
 5323 Older Version   : 00.00.02.04
 533
 534i.      Added support for ZCR controller.
 535
 536                New device id 0x413 added.
 537
 538ii.     Bug fix : Disable controller interrupt before firing INIT cmd to FW.
 539
 540                Interrupt is enabled after required initialization is over.
 541                This is done to ensure that driver is ready to handle interrupts when
 542                it is generated by the controller.
 543
 544                -Sumant Patro <Sumant.Patro@lsil.com>
 545
 5461 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5472 Current Version : 00.00.02.04
 5483 Older Version   : 00.00.02.04 
 549
 550i.      Remove superflous instance_lock
 551
 552        gets rid of the otherwise superflous instance_lock and avoids an unsave 
 553        unsynchronized access in the error handler.
 554
 555                - Christoph Hellwig <hch@lst.de>
 556
 557
 5581 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5592 Current Version : 00.00.02.04
 5603 Older Version   : 00.00.02.04 
 561
 562i.      Support for 1078 type (ppc IOP) controller, device id : 0x60 added.
 563        During initialization, depending on the device id, the template members 
 564        are initialized with function pointers specific to the ppc or 
 565        xscale controllers.  
 566
 567                -Sumant Patro <Sumant.Patro@lsil.com>
 568                
 5691 Release Date    : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro 
 570                                                        <Sumant.Patro@lsil.com>
 5712 Current Version : 00.00.02.04
 5723 Older Version   : 00.00.02.02 
 573i.      Register 16 byte CDB capability with scsi midlayer 
 574
 575        "This patch properly registers the 16 byte command length capability of the 
 576        megaraid_sas controlled hardware with the scsi midlayer. All megaraid_sas 
 577        hardware supports 16 byte CDB's."
 578
 579                -Joshua Giles <joshua_giles@dell.com> 
 580
 5811 Release Date    : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5822 Current Version : 00.00.02.02
 5833 Older Version   : 00.00.02.01 
 584
 585i.      New template defined to represent each family of controllers (identified by processor used). 
 586        The template will have defintions that will be initialised to appropritae 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.
 587
 588                -Sumant Patro <Sumant.Patro@lsil.com>
 589
 5901 Release Date    : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com>
 5912 Current Version : 00.00.02.00-rc4 
 5923 Older Version   : 00.00.02.01 
 593
 594i.      Code reorganized to remove code duplication in megasas_build_cmd. 
 595
 596        "There's a lot of duplicate code megasas_build_cmd.  Move that out of the different codepathes and merge the reminder of megasas_build_cmd into megasas_queue_command"
 597
 598                - Christoph Hellwig <hch@lst.de>
 599
 600ii.     Defined MEGASAS_IOC_FIRMWARE32 for code paths that handles 32 bit applications in 64 bit systems.
 601
 602        "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"
 603
 604                - Christoph Hellwig <hch@lst.de>
 605
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