Documentation/scsi/ChangeLog.megaraid_sas

   1 Release Date    : Thu. Feb 24, 2011 17:00:00 PST 2010 -
   2                         (emaild-id:megaraidlinux@lsi.com)
   3                         Adam Radford
   4 Current Version : 00.00.05.34-rc1
   5 Old Version     : 00.00.05.29-rc1
   6     1. Fix some failure gotos from megasas_probe_one(), etc.
   7     2. Add missing check_and_restore_queue_depth() call in
   8        complete_cmd_fusion().
   9     3. Enable MSI-X before calling megasas_init_fw().
  10     4. Call tasklet_schedule() even if outbound_intr_status == 0 for MFI based
  11        boards in MSI-X mode.
  12     5. Fix megasas_probe_one() to clear PCI_MSIX_FLAGS_ENABLE in msi control
  13        register in kdump kernel.
  14     6. Fix megasas_get_cmd() to only print "Command pool empty" if
  15        megasas_dbg_lvl is set.
  16     7. Fix megasas_build_dcdb_fusion() to not filter by TYPE_DISK.
  17     8. Fix megasas_build_dcdb_fusion() to use io_request->LUN[1] field.
  18     9. Add MR_EVT_CFG_CLEARED to megasas_aen_polling().
  19     10. Fix tasklet_init() in megasas_init_fw() to use instancet->tasklet.
  20     11. Fix fault state handling in megasas_transition_to_ready().
  21     12. Fix max_sectors setting for IEEE SGL's.
  22     13. Fix iMR OCR support to work correctly.
  23 -------------------------------------------------------------------------------
  24 Release Date    : Tues.  Dec 14, 2010 17:00:00 PST 2010 -
  25                         (emaild-id:megaraidlinux@lsi.com)
  26                         Adam Radford
  27 Current Version : 00.00.05.29-rc1
  28 Old Version     : 00.00.04.31-rc1
  29     1. Rename megaraid_sas.c to megaraid_sas_base.c.
  30     2. Update GPL headers.
  31     3. Add MSI-X support and 'msix_disable' module parameter.
  32     4. Use lowest memory bar (for SR-IOV VF support).
  33     5. Add struct megasas_instance_temlate changes, and change all code to use
  34        new instance entries:
  35
  36        irqreturn_t (*service_isr )(int irq, void *devp);
  37        void (*tasklet)(unsigned long);
  38        u32 (*init_adapter)(struct megasas_instance *);
  39        u32 (*build_and_issue_cmd) (struct megasas_instance *,
  40        struct scsi_cmnd *);
  41        void (*issue_dcmd) (struct megasas_instance *instance,
  42                               struct megasas_cmd *cmd);
  43
  44    6. Add code to support MegaRAID 9265/9285 controllers device id (0x5b).
  45 -------------------------------------------------------------------------------
  46 1 Release Date    : Thur.  May 03, 2010 09:12:45 PST 2009 -
  47                         (emaild-id:megaraidlinux@lsi.com)
  48                         Bo Yang
  49
  50 2 Current Version : 00.00.04.31-rc1
  51 3 Older Version   : 00.00.04.17.1-rc1
  52
  53 1.      Add the Online Controller Reset (OCR) to the Driver.
  54         OCR is the new feature for megaraid_sas driver which
  55         will allow the fw to do the chip reset which will not
  56         affact the OS behavious.
  57
  58         To add the OCR support, driver need to do:
  59                 a). reset the controller chips -- Xscale and Gen2 which
  60                 will change the function calls and add the reset function
  61                 related to this two chips.
  62
  63                 b). during the reset, driver will store the pending cmds
  64                 which not returned by FW to driver's pending queue.  Driver
  65                 will re-issue those pending cmds again to FW after the OCR
  66                 finished.
  67
  68                 c). In driver's timeout routine, driver will report to
  69                 OS as reset. Also driver's queue routine will block the
  70                 cmds until the OCR finished.
  71
  72                 d). in Driver's ISR routine, if driver get the FW state as
  73                 state change, FW in Failure status and FW support online controller
  74                 reset (OCR), driver will start to do the controller reset.
  75
  76                 e). In driver's IOCTL routine, the application cmds will wait for the
  77                 OCR to finish, then issue the cmds to FW.
  78
  79                 f). Before driver kill adapter, driver will do last chance of
  80                 OCR to see if driver can bring back the FW.
  81
  82 2.      Add the support update flag to the driver to tell LSI megaraid_sas
  83         application which driver will support the device update.  So application
  84         will not need to do the device update after application add/del the device
  85         from the system.
  86 3.      In driver's timeout routine, driver will do three time reset if fw is in
  87         failed state.  Driver will kill adapter if can't bring back FW after the
  88         this three times reset.
  89 4.      Add the input parameter max_sectors to 1MB support to our GEN2 controller.
  90         customer can use the input paramenter max_sectors to add 1MB support to GEN2
  91         controller.
  92
  93 1 Release Date    : Thur.  Oct 29, 2009 09:12:45 PST 2009 -
  94                         (emaild-id:megaraidlinux@lsi.com)
  95                         Bo Yang
  96
  97 2 Current Version : 00.00.04.17.1-rc1
  98 3 Older Version   : 00.00.04.12
  99
 100 1.      Add the pad_0 in mfi frame structure to 0 to fix the
 101         context value larger than 32bit value issue.
 102
 103 2.      Add the logic drive list to the driver.  Driver will
 104         keep the logic drive list internal after driver load.
 105
 106 3.      driver fixed the device update issue after get the AEN
 107         PD delete/ADD, LD add/delete from FW.
 108
 109 1 Release Date    : Tues.  July 28, 2009 10:12:45 PST 2009 -
 110                         (emaild-id:megaraidlinux@lsi.com)
 111                         Bo Yang
 112
 113 2 Current Version : 00.00.04.12
 114 3 Older Version   : 00.00.04.10
 115
 116 1.      Change the AEN sys PD update from scsi_scan to
 117         scsi_add_device and scsi_remove_device.
 118 2.      Takeoff the debug print-out in aen_polling routine.
 119
 120 1 Release Date    : Thur.  July 02, 2009 10:12:45 PST 2009 -
 121                         (emaild-id:megaraidlinux@lsi.com)
 122                         Bo Yang
 123
 124 2 Current Version : 00.00.04.10
 125 3 Older Version   : 00.00.04.08
 126
 127 1.      Add the 3 mins timeout during the controller initialize.
 128 2.      Add the fix for 64bit sense date errors.
 129
 130 1 Release Date    : Tues. May 05, 2009 10:12:45 PST 2009 -
 131                         (emaild-id:megaraidlinux@lsi.com)
 132                         Bo Yang
 133
 134 2 Current Version : 00.00.04.08
 135 3 Older Version   : 00.00.04.06
 136
 137 1.      Add the fix of pending in FW after deleted the logic drives.
 138 2.      Add the fix of deallocating memory after get pdlist.
 139
 140 1 Release Date    : Tues. March 26, 2009 10:12:45 PST 2009 -
 141                         (emaild-id:megaraidlinux@lsi.com)
 142                         Bo Yang
 143
 144 2 Current Version : 00.00.04.06
 145 3 Older Version   : 00.00.04.04
 146
 147 1.      Add the fix of the driver cmd empty fix of the driver cmd empty.
 148 2.      Add the fix of the driver MSM AEN CMD cause the system slow.
 149
 150 1 Release Date    : Tues. March 03, 2009 10:12:45 PST 2009 -
 151                         (emaild-id:megaraidlinux@lsi.com)
 152                         Bo Yang
 153
 154 2 Current Version : 00.00.04.04
 155 3 Older Version   : 00.00.04.01
 156
 157 1.      Add the Tape drive fix to the driver: If the command is for
 158         the tape device, set the pthru timeout to the os layer timeout value.
 159
 160 2.      Add Poll_wait mechanism to Gen-2 Linux driv.
 161                 In the aen handler, driver needs to wakeup poll handler similar to
 162                 the way it raises SIGIO.
 163
 164 3.      Add new controller new SAS2 support to the driver.
 165
 166 4.      Report the unconfigured PD (system PD) to OS.
 167
 168 5.      Add the IEEE SGL support to the driver
 169
 170 6.      Reasign the Application cmds to SAS2 controller
 171
 172 1 Release Date    : Thur.July. 24 11:41:51 PST 2008 -
 173                        (emaild-id:megaraidlinux@lsi.com)
 174                        Sumant Patro
 175                        Bo Yang
 176
 177 2 Current Version : 00.00.04.01
 178 3 Older Version   : 00.00.03.22
 179
 180 1. Add the new controller (0078, 0079) support to the driver
 181        Those controllers are LSI's next generatation(gen2) SAS controllers.
 182
 183 1 Release Date    : Mon.June. 23 10:12:45 PST 2008 -
 184                        (emaild-id:megaraidlinux@lsi.com)
 185                        Sumant Patro
 186                        Bo Yang
 187
 188 2 Current Version : 00.00.03.22
 189 3 Older Version   : 00.00.03.20
 190
 191 1. Add shutdown DCMD cmd to the shutdown routine to make FW shutdown proper.
 192 2. Unexpected interrupt occurs in HWR Linux driver, add the dumy readl pci flush will fix this issue.
 193
 194 1 Release Date    : Mon. March 10 11:02:31 PDT 2008 -
 195                         (emaild-id:megaraidlinux@lsi.com)
 196                         Sumant Patro
 197                         Bo Yang
 198
 199 2 Current Version : 00.00.03.20-RC1
 200 3 Older Version   : 00.00.03.16
 201
 202 1. Rollback the sense info implementation
 203         Sense buffer ptr data type in the ioctl path is reverted back
 204         to u32 * as in previous versions of driver.
 205
 206 2. Fixed the driver frame count.
 207         When Driver sent wrong frame count to firmware.  As this
 208         particular command is sent to drive, FW is seeing continuous
 209         chip resets and so the command will timeout.
 210
 211 3. Add the new controller(1078DE) support to the driver
 212         and Increase the max_wait to 60 from 10 in the controller
 213         operational status.  With this max_wait increase, driver will
 214         make sure the FW will   finish the pending cmd for KDUMP case.
 215
 216 1 Release Date    : Thur. Nov. 07 16:30:43 PST 2007 -
 217                         (emaild-id:megaraidlinux@lsi.com)
 218                         Sumant Patro
 219                         Bo Yang
 220
 221 2 Current Version : 00.00.03.16
 222 3 Older Version   : 00.00.03.15
 223
 224 1. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take
 225         a max of 60 seconds to respond to the INIT cmd.
 226
 227 1 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
 228                         (emaild-id:megaraidlinux@lsi.com)
 229                         Sumant Patro
 230                         Bo Yang
 231
 232 2 Current Version : 00.00.03.15
 233 3 Older Version   : 00.00.03.14
 234
 235 1. Added module parameter "poll_mode_io" to support for "polling"
 236         (reduced interrupt operation).  In this mode, IO completion
 237         interrupts are delayed. At the end of initiating IOs, the
 238         driver schedules for cmd completion if there are pending cmds
 239         to be completed.  A timer-based interrupt has also been added
 240         to prevent IO completion processing from being delayed
 241         indefinitely in the case that no new IOs are initiated.
 242
 243 1 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
 244                         (emaild-id:megaraidlinux@lsi.com)
 245                         Sumant Patro
 246                         Bo Yang
 247
 248 2 Current Version : 00.00.03.14
 249 3 Older Version   : 00.00.03.13
 250
 251 1. Setting the max_sectors_per_req based on max SGL supported by the
 252         FW. Prior versions calculated this value from controller info
 253         (max_sectors_1, max_sectors_2). For certain controllers/FW,
 254         this was resulting in a value greater than max SGL supported
 255         by the FW. Issue was first reported by users running LUKS+XFS
 256         with megaraid_sas.  Thanks to RB for providing the logs and
 257         duplication steps that helped to get to the root cause of the
 258         issue.  2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from
 259         10. FW may take a max of 60 seconds to respond to the INIT
 260         cmd.
 261
 262 1 Release Date    : Fri. June. 15 16:30:43 PST 2007 -
 263                         (emaild-id:megaraidlinux@lsi.com)
 264                         Sumant Patro
 265                         Bo Yang
 266
 267 2 Current Version : 00.00.03.13
 268 3 Older Version   : 00.00.03.12
 269
 270 1. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io.
 271
 272 On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote:
 273 It looks like megaraid_sas at least needs this to throttle its commands
 274 > as they begin to time out.  The code keeps the existing transport
 275 > template use of eh_timed_out (and allows the transport to override the
 276 > host if they both have this callback).
 277 >
 278 > James
 279
 280 1 Release Date    : Sat May. 12 16:30:43 PST 2007 -
 281                         (emaild-id:megaraidlinux@lsi.com)
 282                         Sumant Patro
 283                         Bo Yang
 284
 285 2 Current Version : 00.00.03.12
 286 3 Older Version   : 00.00.03.11
 287
 288 1.  When MegaSAS driver receives reset call from OS, driver waits in reset
 289 routine for max 3 minutes for all pending command completion. Now driver will
 290 call completion routine every 5 seconds from the reset routine instead of
 291 waiting for depending on cmd completion from isr path.
 292
 293 1 Release Date    : Mon Apr. 30 10:25:52 PST 2007 -
 294                         (emaild-id:megaraidlinux@lsi.com)
 295                         Sumant Patro
 296                         Bo Yang
 297
 298 2 Current Version : 00.00.03.11
 299 3 Older Version   : 00.00.03.09
 300
 301         1. Memory Manager for IOCTL removed for 2.6 kernels.
 302            pci_alloc_consistent replaced by dma_alloc_coherent. With this
 303            change there is no need of memory manager in the driver code
 304
 305         On Wed, 2007-02-07 at 13:30 -0800, Andrew Morton wrote:
 306         > I suspect all this horror is due to stupidity in the DMA API.
 307         >
 308         > pci_alloc_consistent() just goes and assumes GFP_ATOMIC, whereas
 309         > the caller (megasas_mgmt_fw_ioctl) would have been perfectly happy
 310         > to use GFP_KERNEL.
 311         >
 312         > I bet this fixes it
 313
 314         It does, but the DMA API was expanded to cope with this exact case, so
 315         use dma_alloc_coherent() directly in the megaraid code instead.  The dev
 316         is just &pci_dev->dev.
 317
 318         James <James.Bottomley@SteelEye.com>
 319
 320         3. SYNCHRONIZE_CACHE is not supported by FW and thus blocked by driver.
 321         4. Hibernation support added
 322         5. Performing diskdump while running IO in RHEL 4 was failing. Fixed.
 323
 324 1 Release Date    : Fri Feb. 09 14:36:28 PST 2007 -
 325                         (emaild-id:megaraidlinux@lsi.com)
 326                         Sumant Patro
 327                         Bo Yang
 328
 329 2 Current Version : 00.00.03.09
 330 3 Older Version   : 00.00.03.08
 331
 332 i.      Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
 333
 334         The driver now waits for 10 seconds to elapse instead of 5 (as in
 335         previous release) to resume IO.
 336
 337 1 Release Date    : Mon Feb. 05 11:35:24 PST 2007 -
 338                         (emaild-id:megaraidlinux@lsi.com)
 339                         Sumant Patro
 340                         Bo Yang
 341 2 Current Version : 00.00.03.08
 342 3 Older Version   : 00.00.03.07
 343
 344 i.      Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
 345
 346         Fix:    The driver is now throttling IO.
 347         Checks added in megasas_queue_command to know if FW is able to
 348         process commands within timeout period. If number of retries
 349         is 2 or greater,the driver stops sending cmd to FW temporarily. IO is
 350         resumed if pending cmd count reduces to 16 or 5 seconds has elapsed
 351         from the time cmds were last sent to FW.
 352
 353 ii.     FW enables WCE bit in Mode Sense cmd for drives that are configured
 354         as WriteBack. The OS may send "SYNCHRONIZE_CACHE" cmd when Logical
 355         Disks are exposed with WCE=1. User is advised to enable Write Back
 356         mode only when the controller has battery backup. At this time
 357         Synhronize cache is not supported by the FW. Driver will short-cycle
 358         the cmd and return success without sending down to FW.
 359
 360 1 Release Date    : Sun Jan. 14 11:21:32 PDT 2007 -
 361                  Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
 362 2 Current Version : 00.00.03.07
 363 3 Older Version   : 00.00.03.06
 364
 365 i.      bios_param entry added in scsi_host_template that returns disk geometry
 366         information.
 367
 368 1 Release Date    : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
 369 2 Current Version : 00.00.03.06
 370 3 Older Version   : 00.00.03.05
 371
 372 1. 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.
 373 2. Added check in megasas_queue_command and dpc/isr routine to see if we have already declared adapter dead
 374    (hw_crit_error=1). If hw_crit_error==1, now we donot accept any processing of pending cmds/accept any cmd from OS
 375
 376 1 Release Date    : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 377 2 Current Version : 00.00.03.05
 378 3 Older Version   : 00.00.03.04
 379
 380 i.      PCI_DEVICE macro used
 381
 382         Convert the pci_device_id-table of the megaraid_sas-driver to the PCI_DEVICE-macro, to safe some lines.
 383
 384                 - Henrik Kretzschmar <henne@nachtwindheim.de>
 385 ii.     All compiler warnings removed
 386 iii.    megasas_ctrl_info struct reverted to 3.02 release
 387 iv.     Default value of megasas_dbg_lvl set to 0
 388 v.      Removing in megasas_exit the sysfs entry created for megasas_dbg_lvl
 389 vi.     In megasas_teardown_frame_pool(), cmd->frame was passed instead of
 390         cmd->sense to pci_pool_free. Fixed. Bug was pointed out by
 391         Eric Sesterhenn
 392
 393 1 Release Date    : Wed Sep 13 14:22:51 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 394 2 Current Version : 00.00.03.04
 395 3 Older Version   : 00.00.03.03
 396
 397 i.      Added Reboot notify
 398 ii.     Reduced by 1 max cmds sent to FW from Driver to make the reply_q_sz same
 399         as Max Cmds FW can support
 400
 401 1 Release Date    : Tue Aug 22 16:33:14 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 402 2 Current Version : 00.00.03.03
 403 3 Older Version   : 00.00.03.02
 404
 405 i.      Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead.
 406         New varible added to set dbg level.
 407 ii.     Disable interrupt made as fn pointer as they are different for 1068 / 1078
 408 iii.    Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and
 409         3 SGE for 32 bit SGL
 410 iv.     Tasklet added for cmd completion
 411 v.      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.
 412 vi.     megasas_ctrl_prop structure updated (based on FW struct)
 413 vii.    Added print : FW now in Ready State during initialization
 414
 415 1 Release Date    : Sun Aug 06 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 416 2 Current Version : 00.00.03.02
 417 3 Older Version   : 00.00.03.01
 418
 419 i.      Added FW tranistion state for Hotplug scenario
 420
 421 1 Release Date    : Sun May 14 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 422 2 Current Version : 00.00.03.01
 423 3 Older Version   : 00.00.02.04
 424
 425 i.      Added support for ZCR controller.
 426
 427                 New device id 0x413 added.
 428
 429 ii.     Bug fix : Disable controller interrupt before firing INIT cmd to FW.
 430
 431                 Interrupt is enabled after required initialization is over.
 432                 This is done to ensure that driver is ready to handle interrupts when
 433                 it is generated by the controller.
 434
 435                 -Sumant Patro <Sumant.Patro@lsil.com>
 436
 437 1 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 438 2 Current Version : 00.00.02.04
 439 3 Older Version   : 00.00.02.04
 440
 441 i.      Remove superflous instance_lock
 442
 443         gets rid of the otherwise superflous instance_lock and avoids an unsave
 444         unsynchronized access in the error handler.
 445
 446                 - Christoph Hellwig <hch@lst.de>
 447
 448
 449 1 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 450 2 Current Version : 00.00.02.04
 451 3 Older Version   : 00.00.02.04
 452
 453 i.      Support for 1078 type (ppc IOP) controller, device id : 0x60 added.
 454         During initialization, depending on the device id, the template members
 455         are initialized with function pointers specific to the ppc or
 456         xscale controllers.
 457
 458                 -Sumant Patro <Sumant.Patro@lsil.com>
 459
 460 1 Release Date    : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro
 461                                                         <Sumant.Patro@lsil.com>
 462 2 Current Version : 00.00.02.04
 463 3 Older Version   : 00.00.02.02
 464 i.      Register 16 byte CDB capability with scsi midlayer
 465
 466         "Ths patch properly registers the 16 byte command length capability of the
 467         megaraid_sas controlled hardware with the scsi midlayer. All megaraid_sas
 468         hardware supports 16 byte CDB's."
 469
 470                 -Joshua Giles <joshua_giles@dell.com>
 471
 472 1 Release Date    : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 473 2 Current Version : 00.00.02.02
 474 3 Older Version   : 00.00.02.01
 475
 476 i.      New template defined to represent each family of controllers (identified by processor used).
 477         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.
 478
 479                 -Sumant Patro <Sumant.Patro@lsil.com>
 480
 481 1 Release Date    : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com>
 482 2 Current Version : 00.00.02.00-rc4
 483 3 Older Version   : 00.00.02.01
 484
 485 i.      Code reorganized to remove code duplication in megasas_build_cmd.
 486
 487         "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"
 488
 489                 - Christoph Hellwig <hch@lst.de>
 490
 491 ii.     Defined MEGASAS_IOC_FIRMWARE32 for code paths that handles 32 bit applications in 64 bit systems.
 492
 493         "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"
 494
 495                 - Christoph Hellwig <hch@lst.de>