linux/Documentation/scsi/ChangeLog.megaraid_sas
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   1Release Date    : Mon. Oct 1, 2012 17:00:00 PST 2012 -
   2                        (emaild-id:megaraidlinux@lsi.com)
   3                        Adam Radford
   4Current Version : 06.504.01.00-rc1
   5Old Version     : 00.00.06.18-rc1
   6    1. Removed un-needed completion_lock spinlock calls.
   7    2. Add module param for configurable MSI-X vector count.
   8    3. Load io_request DataLength in bytes.
   9    4. Add array boundary check for SystemPD.
  10    5. Add SystemPD FastPath support.
  11    6. Remove duplicate code.
  12    7. Version, Changelog, Copyright update.
  13-------------------------------------------------------------------------------
  14Release Date    : Tue. Jun 17, 2012 17:00:00 PST 2012 -
  15                        (emaild-id:megaraidlinux@lsi.com)
  16                        Adam Radford/Kashyap Desai
  17Current Version : 00.00.06.18-rc1
  18Old Version     : 00.00.06.15-rc1
  19    1. Fix Copyright dates.
  20    2. Add throttlequeuedepth module parameter.
  21    3. Add resetwaittime module parameter.
  22    4. Move poll_aen_lock initializer.
  23-------------------------------------------------------------------------------
  24Release Date    : Mon. Mar 19, 2012 17:00:00 PST 2012 -
  25                        (emaild-id:megaraidlinux@lsi.com)
  26                        Adam Radford
  27Current Version : 00.00.06.15-rc1
  28Old Version     : 00.00.06.14-rc1
  29    1. Optimize HostMSIxVectors setting.
  30    2. Add fpRead/WriteCapable, fpRead/WriteAcrossStripe checks.
  31-------------------------------------------------------------------------------
  32Release Date    : Fri. Jan 6, 2012 17:00:00 PST 2010 -
  33                        (emaild-id:megaraidlinux@lsi.com)
  34                        Adam Radford
  35Current Version : 00.00.06.14-rc1
  36Old Version     : 00.00.06.12-rc1
  37    1. Fix reglockFlags for degraded raid5/6 for MR 9360/9380.
  38    2. Mask off flags in ioctl path to prevent memory scribble with older
  39       MegaCLI versions.
  40    3. Remove poll_mode_io module paramater, sysfs node, and associated code.
  41-------------------------------------------------------------------------------
  42Release Date    : Wed. Oct 5, 2011 17:00:00 PST 2010 -
  43                        (emaild-id:megaraidlinux@lsi.com)
  44                        Adam Radford
  45Current Version : 00.00.06.12-rc1
  46Old Version     : 00.00.05.40-rc1
  47    1. Continue booting immediately if FW in FAULT at driver load time.
  48    2. Increase default cmds per lun to 256.
  49    3. Fix mismatch in megasas_reset_fusion() mutex lock-unlock.
  50    4. Remove some un-necessary code.
  51    5. Clear state change interrupts for Fusion/Invader.
  52    6. Clear FUSION_IN_RESET before enabling interrupts.
  53    7. Add support for MegaRAID 9360/9380 12GB/s controllers.
  54    8. Add multiple MSI-X vector/multiple reply queue support.
  55    9. Add driver workaround for PERC5/1068 kdump kernel panic.
  56-------------------------------------------------------------------------------
  57Release Date    : Tue. Jul 26, 2011 17:00:00 PST 2010 -
  58                        (emaild-id:megaraidlinux@lsi.com)
  59                        Adam Radford
  60Current Version : 00.00.05.40-rc1
  61Old Version     : 00.00.05.38-rc1
  62    1. Fix FastPath I/O to work with degraded RAID 1.
  63    2. Add .change_queue_depth support.
  64-------------------------------------------------------------------------------
  65Release Date    : Wed. May 11, 2011 17:00:00 PST 2010 -
  66                        (emaild-id:megaraidlinux@lsi.com)
  67                        Adam Radford
  68Current Version : 00.00.05.38-rc1
  69Old Version     : 00.00.05.34-rc1
  70    1. Remove MSI-X black list, use MFI_REG_STATE.ready.msiEnable.
  71    2. Remove un-used function megasas_return_cmd_for_smid().
  72    3. Check MFI_REG_STATE.fault.resetAdapter in megasas_reset_fusion().
  73    4. Disable interrupts/free_irq() in megasas_shutdown().
  74    5. Fix bug where AENs could be lost in probe() and resume().
  75    6. Convert 6,10,12 byte CDB's to 16 byte CDB for large LBA's for FastPath
  76       IO.
  77    7. Add 1078 OCR support.
  78-------------------------------------------------------------------------------
  79Release Date    : Thu. Feb 24, 2011 17:00:00 PST 2010 -
  80                        (emaild-id:megaraidlinux@lsi.com)
  81                        Adam Radford
  82Current Version : 00.00.05.34-rc1
  83Old Version     : 00.00.05.29-rc1
  84    1. Fix some failure gotos from megasas_probe_one(), etc.
  85    2. Add missing check_and_restore_queue_depth() call in
  86       complete_cmd_fusion().
  87    3. Enable MSI-X before calling megasas_init_fw().
  88    4. Call tasklet_schedule() even if outbound_intr_status == 0 for MFI based
  89       boards in MSI-X mode.
  90    5. Fix megasas_probe_one() to clear PCI_MSIX_FLAGS_ENABLE in msi control
  91       register in kdump kernel.
  92    6. Fix megasas_get_cmd() to only print "Command pool empty" if
  93       megasas_dbg_lvl is set.
  94    7. Fix megasas_build_dcdb_fusion() to not filter by TYPE_DISK.
  95    8. Fix megasas_build_dcdb_fusion() to use io_request->LUN[1] field.
  96    9. Add MR_EVT_CFG_CLEARED to megasas_aen_polling().
  97    10. Fix tasklet_init() in megasas_init_fw() to use instancet->tasklet.
  98    11. Fix fault state handling in megasas_transition_to_ready().
  99    12. Fix max_sectors setting for IEEE SGL's.
 100    13. Fix iMR OCR support to work correctly.
 101-------------------------------------------------------------------------------
 102Release Date    : Tues.  Dec 14, 2010 17:00:00 PST 2010 -
 103                        (emaild-id:megaraidlinux@lsi.com)
 104                        Adam Radford
 105Current Version : 00.00.05.29-rc1
 106Old Version     : 00.00.04.31-rc1
 107    1. Rename megaraid_sas.c to megaraid_sas_base.c.
 108    2. Update GPL headers.
 109    3. Add MSI-X support and 'msix_disable' module parameter.
 110    4. Use lowest memory bar (for SR-IOV VF support).
 111    5. Add struct megasas_instance_temlate changes, and change all code to use
 112       new instance entries:
 113
 114       irqreturn_t (*service_isr )(int irq, void *devp);
 115       void (*tasklet)(unsigned long);
 116       u32 (*init_adapter)(struct megasas_instance *);
 117       u32 (*build_and_issue_cmd) (struct megasas_instance *,
 118       struct scsi_cmnd *);
 119       void (*issue_dcmd) (struct megasas_instance *instance,
 120                              struct megasas_cmd *cmd);
 121
 122   6. Add code to support MegaRAID 9265/9285 controllers device id (0x5b).
 123-------------------------------------------------------------------------------
 1241 Release Date    : Thur.  May 03, 2010 09:12:45 PST 2009 -
 125                        (emaild-id:megaraidlinux@lsi.com)
 126                        Bo Yang
 127
 1282 Current Version : 00.00.04.31-rc1
 1293 Older Version   : 00.00.04.17.1-rc1
 130
 1311.      Add the Online Controller Reset (OCR) to the Driver.
 132        OCR is the new feature for megaraid_sas driver which
 133        will allow the fw to do the chip reset which will not
 134        affact the OS behavious.
 135
 136        To add the OCR support, driver need to do:
 137                a). reset the controller chips -- Xscale and Gen2 which
 138                will change the function calls and add the reset function
 139                related to this two chips.
 140
 141                b). during the reset, driver will store the pending cmds
 142                which not returned by FW to driver's pending queue.  Driver
 143                will re-issue those pending cmds again to FW after the OCR
 144                finished.
 145
 146                c). In driver's timeout routine, driver will report to
 147                OS as reset. Also driver's queue routine will block the
 148                cmds until the OCR finished.
 149
 150                d). in Driver's ISR routine, if driver get the FW state as
 151                state change, FW in Failure status and FW support online controller
 152                reset (OCR), driver will start to do the controller reset.
 153
 154                e). In driver's IOCTL routine, the application cmds will wait for the
 155                OCR to finish, then issue the cmds to FW.
 156
 157                f). Before driver kill adapter, driver will do last chance of
 158                OCR to see if driver can bring back the FW.
 159
 1602.      Add the support update flag to the driver to tell LSI megaraid_sas
 161        application which driver will support the device update.  So application
 162        will not need to do the device update after application add/del the device
 163        from the system.
 1643.      In driver's timeout routine, driver will do three time reset if fw is in
 165        failed state.  Driver will kill adapter if can't bring back FW after the
 166        this three times reset.
 1674.      Add the input parameter max_sectors to 1MB support to our GEN2 controller.
 168        customer can use the input paramenter max_sectors to add 1MB support to GEN2
 169        controller.
 170
 1711 Release Date    : Thur.  Oct 29, 2009 09:12:45 PST 2009 -
 172                        (emaild-id:megaraidlinux@lsi.com)
 173                        Bo Yang
 174
 1752 Current Version : 00.00.04.17.1-rc1
 1763 Older Version   : 00.00.04.12
 177
 1781.      Add the pad_0 in mfi frame structure to 0 to fix the
 179        context value larger than 32bit value issue.
 180
 1812.      Add the logic drive list to the driver.  Driver will
 182        keep the logic drive list internal after driver load.
 183
 1843.      driver fixed the device update issue after get the AEN
 185        PD delete/ADD, LD add/delete from FW.
 186
 1871 Release Date    : Tues.  July 28, 2009 10:12:45 PST 2009 -
 188                        (emaild-id:megaraidlinux@lsi.com)
 189                        Bo Yang
 190
 1912 Current Version : 00.00.04.12
 1923 Older Version   : 00.00.04.10
 193
 1941.      Change the AEN sys PD update from scsi_scan to
 195        scsi_add_device and scsi_remove_device.
 1962.      Takeoff the debug print-out in aen_polling routine.
 197
 1981 Release Date    : Thur.  July 02, 2009 10:12:45 PST 2009 -
 199                        (emaild-id:megaraidlinux@lsi.com)
 200                        Bo Yang
 201
 2022 Current Version : 00.00.04.10
 2033 Older Version   : 00.00.04.08
 204
 2051.      Add the 3 mins timeout during the controller initialize.
 2062.      Add the fix for 64bit sense date errors.
 207
 2081 Release Date    : Tues. May 05, 2009 10:12:45 PST 2009 -
 209                        (emaild-id:megaraidlinux@lsi.com)
 210                        Bo Yang
 211
 2122 Current Version : 00.00.04.08
 2133 Older Version   : 00.00.04.06
 214
 2151.      Add the fix of pending in FW after deleted the logic drives.
 2162.      Add the fix of deallocating memory after get pdlist.
 217
 2181 Release Date    : Tues. March 26, 2009 10:12:45 PST 2009 -
 219                        (emaild-id:megaraidlinux@lsi.com)
 220                        Bo Yang
 221
 2222 Current Version : 00.00.04.06
 2233 Older Version   : 00.00.04.04
 224
 2251.      Add the fix of the driver cmd empty fix of the driver cmd empty.
 2262.      Add the fix of the driver MSM AEN CMD cause the system slow.
 227
 2281 Release Date    : Tues. March 03, 2009 10:12:45 PST 2009 -
 229                        (emaild-id:megaraidlinux@lsi.com)
 230                        Bo Yang
 231
 2322 Current Version : 00.00.04.04
 2333 Older Version   : 00.00.04.01
 234
 2351.      Add the Tape drive fix to the driver: If the command is for
 236        the tape device, set the pthru timeout to the os layer timeout value.
 237
 2382.      Add Poll_wait mechanism to Gen-2 Linux driv.
 239                In the aen handler, driver needs to wakeup poll handler similar to
 240                the way it raises SIGIO.
 241
 2423.      Add new controller new SAS2 support to the driver.
 243
 2444.      Report the unconfigured PD (system PD) to OS.
 245
 2465.      Add the IEEE SGL support to the driver
 247
 2486.      Reasign the Application cmds to SAS2 controller
 249
 2501 Release Date    : Thur.July. 24 11:41:51 PST 2008 -
 251                       (emaild-id:megaraidlinux@lsi.com)
 252                       Sumant Patro
 253                       Bo Yang
 254
 2552 Current Version : 00.00.04.01
 2563 Older Version   : 00.00.03.22
 257
 2581. Add the new controller (0078, 0079) support to the driver
 259       Those controllers are LSI's next generatation(gen2) SAS controllers.
 260
 2611 Release Date    : Mon.June. 23 10:12:45 PST 2008 -
 262                       (emaild-id:megaraidlinux@lsi.com)
 263                       Sumant Patro
 264                       Bo Yang
 265
 2662 Current Version : 00.00.03.22
 2673 Older Version   : 00.00.03.20
 268
 2691. Add shutdown DCMD cmd to the shutdown routine to make FW shutdown proper.
 2702. Unexpected interrupt occurs in HWR Linux driver, add the dumy readl pci flush will fix this issue.
 271
 2721 Release Date    : Mon. March 10 11:02:31 PDT 2008 -
 273                        (emaild-id:megaraidlinux@lsi.com)
 274                        Sumant Patro
 275                        Bo Yang
 276
 2772 Current Version : 00.00.03.20-RC1
 2783 Older Version   : 00.00.03.16
 279
 2801. Rollback the sense info implementation
 281        Sense buffer ptr data type in the ioctl path is reverted back
 282        to u32 * as in previous versions of driver.
 283
 2842. Fixed the driver frame count.
 285        When Driver sent wrong frame count to firmware.  As this
 286        particular command is sent to drive, FW is seeing continuous
 287        chip resets and so the command will timeout.
 288
 2893. Add the new controller(1078DE) support to the driver
 290        and Increase the max_wait to 60 from 10 in the controller
 291        operational status.  With this max_wait increase, driver will
 292        make sure the FW will   finish the pending cmd for KDUMP case.
 293
 2941 Release Date    : Thur. Nov. 07 16:30:43 PST 2007 -
 295                        (emaild-id:megaraidlinux@lsi.com)
 296                        Sumant Patro
 297                        Bo Yang
 298
 2992 Current Version : 00.00.03.16
 3003 Older Version   : 00.00.03.15
 301
 3021. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take
 303        a max of 60 seconds to respond to the INIT cmd.
 304
 3051 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
 306                        (emaild-id:megaraidlinux@lsi.com)
 307                        Sumant Patro
 308                        Bo Yang
 309
 3102 Current Version : 00.00.03.15
 3113 Older Version   : 00.00.03.14
 312
 3131. Added module parameter "poll_mode_io" to support for "polling"
 314        (reduced interrupt operation).  In this mode, IO completion
 315        interrupts are delayed. At the end of initiating IOs, the
 316        driver schedules for cmd completion if there are pending cmds
 317        to be completed.  A timer-based interrupt has also been added
 318        to prevent IO completion processing from being delayed
 319        indefinitely in the case that no new IOs are initiated.
 320
 3211 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
 322                        (emaild-id:megaraidlinux@lsi.com)
 323                        Sumant Patro
 324                        Bo Yang
 325
 3262 Current Version : 00.00.03.14
 3273 Older Version   : 00.00.03.13
 328
 3291. Setting the max_sectors_per_req based on max SGL supported by the
 330        FW. Prior versions calculated this value from controller info
 331        (max_sectors_1, max_sectors_2). For certain controllers/FW,
 332        this was resulting in a value greater than max SGL supported
 333        by the FW. Issue was first reported by users running LUKS+XFS
 334        with megaraid_sas.  Thanks to RB for providing the logs and
 335        duplication steps that helped to get to the root cause of the
 336        issue.  2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from
 337        10. FW may take a max of 60 seconds to respond to the INIT
 338        cmd.
 339
 3401 Release Date    : Fri. June. 15 16:30:43 PST 2007 -
 341                        (emaild-id:megaraidlinux@lsi.com)
 342                        Sumant Patro
 343                        Bo Yang
 344
 3452 Current Version : 00.00.03.13
 3463 Older Version   : 00.00.03.12
 347
 3481. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io.
 349
 350On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote:
 351It looks like megaraid_sas at least needs this to throttle its commands
 352> as they begin to time out.  The code keeps the existing transport
 353> template use of eh_timed_out (and allows the transport to override the
 354> host if they both have this callback).
 355>
 356> James
 357
 3581 Release Date    : Sat May. 12 16:30:43 PST 2007 -
 359                        (emaild-id:megaraidlinux@lsi.com)
 360                        Sumant Patro
 361                        Bo Yang
 362
 3632 Current Version : 00.00.03.12
 3643 Older Version   : 00.00.03.11
 365
 3661.  When MegaSAS driver receives reset call from OS, driver waits in reset
 367routine for max 3 minutes for all pending command completion. Now driver will
 368call completion routine every 5 seconds from the reset routine instead of
 369waiting for depending on cmd completion from isr path.
 370
 3711 Release Date    : Mon Apr. 30 10:25:52 PST 2007 -
 372                        (emaild-id:megaraidlinux@lsi.com)
 373                        Sumant Patro
 374                        Bo Yang
 375
 3762 Current Version : 00.00.03.11
 3773 Older Version   : 00.00.03.09
 378
 379        1. Memory Manager for IOCTL removed for 2.6 kernels.
 380           pci_alloc_consistent replaced by dma_alloc_coherent. With this
 381           change there is no need of memory manager in the driver code
 382
 383        On Wed, 2007-02-07 at 13:30 -0800, Andrew Morton wrote:
 384        > I suspect all this horror is due to stupidity in the DMA API.
 385        >
 386        > pci_alloc_consistent() just goes and assumes GFP_ATOMIC, whereas
 387        > the caller (megasas_mgmt_fw_ioctl) would have been perfectly happy
 388        > to use GFP_KERNEL.
 389        >
 390        > I bet this fixes it
 391
 392        It does, but the DMA API was expanded to cope with this exact case, so
 393        use dma_alloc_coherent() directly in the megaraid code instead.  The dev
 394        is just &pci_dev->dev.
 395
 396        James <James.Bottomley@SteelEye.com>
 397
 398        3. SYNCHRONIZE_CACHE is not supported by FW and thus blocked by driver.
 399        4. Hibernation support added
 400        5. Performing diskdump while running IO in RHEL 4 was failing. Fixed.
 401
 4021 Release Date    : Fri Feb. 09 14:36:28 PST 2007 -
 403                        (emaild-id:megaraidlinux@lsi.com)
 404                        Sumant Patro
 405                        Bo Yang
 406
 4072 Current Version : 00.00.03.09
 4083 Older Version   : 00.00.03.08
 409
 410i.      Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
 411
 412        The driver now waits for 10 seconds to elapse instead of 5 (as in
 413        previous release) to resume IO.
 414
 4151 Release Date    : Mon Feb. 05 11:35:24 PST 2007 -
 416                        (emaild-id:megaraidlinux@lsi.com)
 417                        Sumant Patro
 418                        Bo Yang
 4192 Current Version : 00.00.03.08
 4203 Older Version   : 00.00.03.07
 421
 422i.      Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
 423
 424        Fix:    The driver is now throttling IO.
 425        Checks added in megasas_queue_command to know if FW is able to
 426        process commands within timeout period. If number of retries
 427        is 2 or greater,the driver stops sending cmd to FW temporarily. IO is
 428        resumed if pending cmd count reduces to 16 or 5 seconds has elapsed
 429        from the time cmds were last sent to FW.
 430
 431ii.     FW enables WCE bit in Mode Sense cmd for drives that are configured
 432        as WriteBack. The OS may send "SYNCHRONIZE_CACHE" cmd when Logical
 433        Disks are exposed with WCE=1. User is advised to enable Write Back
 434        mode only when the controller has battery backup. At this time
 435        Synhronize cache is not supported by the FW. Driver will short-cycle
 436        the cmd and return success without sending down to FW.
 437
 4381 Release Date    : Sun Jan. 14 11:21:32 PDT 2007 -
 439                 Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
 4402 Current Version : 00.00.03.07
 4413 Older Version   : 00.00.03.06
 442
 443i.      bios_param entry added in scsi_host_template that returns disk geometry
 444        information.
 445
 4461 Release Date    : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
 4472 Current Version : 00.00.03.06
 4483 Older Version   : 00.00.03.05
 449
 4501. 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.
 4512. Added check in megasas_queue_command and dpc/isr routine to see if we have already declared adapter dead
 452   (hw_crit_error=1). If hw_crit_error==1, now we donot accept any processing of pending cmds/accept any cmd from OS
 453
 4541 Release Date    : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 4552 Current Version : 00.00.03.05
 4563 Older Version   : 00.00.03.04
 457
 458i.      PCI_DEVICE macro used
 459
 460        Convert the pci_device_id-table of the megaraid_sas-driver to the PCI_DEVICE-macro, to safe some lines.
 461
 462                - Henrik Kretzschmar <henne@nachtwindheim.de>
 463ii.     All compiler warnings removed
 464iii.    megasas_ctrl_info struct reverted to 3.02 release
 465iv.     Default value of megasas_dbg_lvl set to 0
 466v.      Removing in megasas_exit the sysfs entry created for megasas_dbg_lvl
 467vi.     In megasas_teardown_frame_pool(), cmd->frame was passed instead of
 468        cmd->sense to pci_pool_free. Fixed. Bug was pointed out by
 469        Eric Sesterhenn
 470
 4711 Release Date    : Wed Sep 13 14:22:51 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 4722 Current Version : 00.00.03.04
 4733 Older Version   : 00.00.03.03
 474
 475i.      Added Reboot notify
 476ii.     Reduced by 1 max cmds sent to FW from Driver to make the reply_q_sz same
 477        as Max Cmds FW can support
 478
 4791 Release Date    : Tue Aug 22 16:33:14 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 4802 Current Version : 00.00.03.03
 4813 Older Version   : 00.00.03.02
 482
 483i.      Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead.
 484        New varible added to set dbg level.
 485ii.     Disable interrupt made as fn pointer as they are different for 1068 / 1078
 486iii.    Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and
 487        3 SGE for 32 bit SGL
 488iv.     Tasklet added for cmd completion
 489v.      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.
 490vi.     megasas_ctrl_prop structure updated (based on FW struct)
 491vii.    Added print : FW now in Ready State during initialization
 492
 4931 Release Date    : Sun Aug 06 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 4942 Current Version : 00.00.03.02
 4953 Older Version   : 00.00.03.01
 496
 497i.      Added FW tranistion state for Hotplug scenario
 498
 4991 Release Date    : Sun May 14 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5002 Current Version : 00.00.03.01
 5013 Older Version   : 00.00.02.04
 502
 503i.      Added support for ZCR controller.
 504
 505                New device id 0x413 added.
 506
 507ii.     Bug fix : Disable controller interrupt before firing INIT cmd to FW.
 508
 509                Interrupt is enabled after required initialization is over.
 510                This is done to ensure that driver is ready to handle interrupts when
 511                it is generated by the controller.
 512
 513                -Sumant Patro <Sumant.Patro@lsil.com>
 514
 5151 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5162 Current Version : 00.00.02.04
 5173 Older Version   : 00.00.02.04 
 518
 519i.      Remove superflous instance_lock
 520
 521        gets rid of the otherwise superflous instance_lock and avoids an unsave 
 522        unsynchronized access in the error handler.
 523
 524                - Christoph Hellwig <hch@lst.de>
 525
 526
 5271 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5282 Current Version : 00.00.02.04
 5293 Older Version   : 00.00.02.04 
 530
 531i.      Support for 1078 type (ppc IOP) controller, device id : 0x60 added.
 532        During initialization, depending on the device id, the template members 
 533        are initialized with function pointers specific to the ppc or 
 534        xscale controllers.  
 535
 536                -Sumant Patro <Sumant.Patro@lsil.com>
 537                
 5381 Release Date    : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro 
 539                                                        <Sumant.Patro@lsil.com>
 5402 Current Version : 00.00.02.04
 5413 Older Version   : 00.00.02.02 
 542i.      Register 16 byte CDB capability with scsi midlayer 
 543
 544        "This patch properly registers the 16 byte command length capability of the 
 545        megaraid_sas controlled hardware with the scsi midlayer. All megaraid_sas 
 546        hardware supports 16 byte CDB's."
 547
 548                -Joshua Giles <joshua_giles@dell.com> 
 549
 5501 Release Date    : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 5512 Current Version : 00.00.02.02
 5523 Older Version   : 00.00.02.01 
 553
 554i.      New template defined to represent each family of controllers (identified by processor used). 
 555        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.
 556
 557                -Sumant Patro <Sumant.Patro@lsil.com>
 558
 5591 Release Date    : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com>
 5602 Current Version : 00.00.02.00-rc4 
 5613 Older Version   : 00.00.02.01 
 562
 563i.      Code reorganized to remove code duplication in megasas_build_cmd. 
 564
 565        "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"
 566
 567                - Christoph Hellwig <hch@lst.de>
 568
 569ii.     Defined MEGASAS_IOC_FIRMWARE32 for code paths that handles 32 bit applications in 64 bit systems.
 570
 571        "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"
 572
 573                - Christoph Hellwig <hch@lst.de>
 574
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