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Linux/Documentation/scsi/ChangeLog.megaraid_sas

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  1 Release 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
  7 Current Version : 06.803.02.00-rc1
  8 Old 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 -------------------------------------------------------------------------------
 15 Release 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
 20 Current Version : 06.803.01.00-rc1
 21 Old 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 -------------------------------------------------------------------------------
 28 Release 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
 33 Current Version : 06.700.06.00-rc1
 34 Old Version     : 06.600.18.00-rc1
 35     1. Add High Availability clustering support using shared Logical Disks.
 36     2. Version and Changelog update.
 37 -------------------------------------------------------------------------------
 38 Release 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
 43 Current Version : 06.600.18.00-rc1
 44 Old 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 -------------------------------------------------------------------------------
 60 Release Date    : Sat. Feb 9, 2013 17:00:00 PST 2013 -
 61                         (emaild-id:megaraidlinux@lsi.com)
 62                         Adam Radford
 63 Current Version : 06.506.00.00-rc1
 64 Old 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 -------------------------------------------------------------------------------
 69 Release Date    : Mon. Oct 1, 2012 17:00:00 PST 2012 -
 70                         (emaild-id:megaraidlinux@lsi.com)
 71                         Adam Radford
 72 Current Version : 06.504.01.00-rc1
 73 Old 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 -------------------------------------------------------------------------------
 82 Release Date    : Tue. Jun 17, 2012 17:00:00 PST 2012 -
 83                         (emaild-id:megaraidlinux@lsi.com)
 84                         Adam Radford/Kashyap Desai
 85 Current Version : 00.00.06.18-rc1
 86 Old 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 -------------------------------------------------------------------------------
 92 Release Date    : Mon. Mar 19, 2012 17:00:00 PST 2012 -
 93                         (emaild-id:megaraidlinux@lsi.com)
 94                         Adam Radford
 95 Current Version : 00.00.06.15-rc1
 96 Old Version     : 00.00.06.14-rc1
 97     1. Optimize HostMSIxVectors setting.
 98     2. Add fpRead/WriteCapable, fpRead/WriteAcrossStripe checks.
 99 -------------------------------------------------------------------------------
100 Release Date    : Fri. Jan 6, 2012 17:00:00 PST 2010 -
101                         (emaild-id:megaraidlinux@lsi.com)
102                         Adam Radford
103 Current Version : 00.00.06.14-rc1
104 Old 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 -------------------------------------------------------------------------------
110 Release Date    : Wed. Oct 5, 2011 17:00:00 PST 2010 -
111                         (emaild-id:megaraidlinux@lsi.com)
112                         Adam Radford
113 Current Version : 00.00.06.12-rc1
114 Old 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 -------------------------------------------------------------------------------
125 Release Date    : Tue. Jul 26, 2011 17:00:00 PST 2010 -
126                         (emaild-id:megaraidlinux@lsi.com)
127                         Adam Radford
128 Current Version : 00.00.05.40-rc1
129 Old 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 -------------------------------------------------------------------------------
133 Release Date    : Wed. May 11, 2011 17:00:00 PST 2010 -
134                         (emaild-id:megaraidlinux@lsi.com)
135                         Adam Radford
136 Current Version : 00.00.05.38-rc1
137 Old 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 -------------------------------------------------------------------------------
147 Release Date    : Thu. Feb 24, 2011 17:00:00 PST 2010 -
148                         (emaild-id:megaraidlinux@lsi.com)
149                         Adam Radford
150 Current Version : 00.00.05.34-rc1
151 Old 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 -------------------------------------------------------------------------------
170 Release Date    : Tues.  Dec 14, 2010 17:00:00 PST 2010 -
171                         (emaild-id:megaraidlinux@lsi.com)
172                         Adam Radford
173 Current Version : 00.00.05.29-rc1
174 Old 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 -------------------------------------------------------------------------------
192 1 Release Date    : Thur.  May 03, 2010 09:12:45 PST 2009 -
193                         (emaild-id:megaraidlinux@lsi.com)
194                         Bo Yang
195 
196 2 Current Version : 00.00.04.31-rc1
197 3 Older Version   : 00.00.04.17.1-rc1
198 
199 1.      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 
228 2.      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.
232 3.      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.
235 4.      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 
239 1 Release Date    : Thur.  Oct 29, 2009 09:12:45 PST 2009 -
240                         (emaild-id:megaraidlinux@lsi.com)
241                         Bo Yang
242 
243 2 Current Version : 00.00.04.17.1-rc1
244 3 Older Version   : 00.00.04.12
245 
246 1.      Add the pad_0 in mfi frame structure to 0 to fix the
247         context value larger than 32bit value issue.
248 
249 2.      Add the logic drive list to the driver.  Driver will
250         keep the logic drive list internal after driver load.
251 
252 3.      driver fixed the device update issue after get the AEN
253         PD delete/ADD, LD add/delete from FW.
254 
255 1 Release Date    : Tues.  July 28, 2009 10:12:45 PST 2009 -
256                         (emaild-id:megaraidlinux@lsi.com)
257                         Bo Yang
258 
259 2 Current Version : 00.00.04.12
260 3 Older Version   : 00.00.04.10
261 
262 1.      Change the AEN sys PD update from scsi_scan to
263         scsi_add_device and scsi_remove_device.
264 2.      Takeoff the debug print-out in aen_polling routine.
265 
266 1 Release Date    : Thur.  July 02, 2009 10:12:45 PST 2009 -
267                         (emaild-id:megaraidlinux@lsi.com)
268                         Bo Yang
269 
270 2 Current Version : 00.00.04.10
271 3 Older Version   : 00.00.04.08
272 
273 1.      Add the 3 mins timeout during the controller initialize.
274 2.      Add the fix for 64bit sense date errors.
275 
276 1 Release Date    : Tues. May 05, 2009 10:12:45 PST 2009 -
277                         (emaild-id:megaraidlinux@lsi.com)
278                         Bo Yang
279 
280 2 Current Version : 00.00.04.08
281 3 Older Version   : 00.00.04.06
282 
283 1.      Add the fix of pending in FW after deleted the logic drives.
284 2.      Add the fix of deallocating memory after get pdlist.
285 
286 1 Release Date    : Tues. March 26, 2009 10:12:45 PST 2009 -
287                         (emaild-id:megaraidlinux@lsi.com)
288                         Bo Yang
289 
290 2 Current Version : 00.00.04.06
291 3 Older Version   : 00.00.04.04
292 
293 1.      Add the fix of the driver cmd empty fix of the driver cmd empty.
294 2.      Add the fix of the driver MSM AEN CMD cause the system slow.
295 
296 1 Release Date    : Tues. March 03, 2009 10:12:45 PST 2009 -
297                         (emaild-id:megaraidlinux@lsi.com)
298                         Bo Yang
299 
300 2 Current Version : 00.00.04.04
301 3 Older Version   : 00.00.04.01
302 
303 1.      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 
306 2.      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 
310 3.      Add new controller new SAS2 support to the driver.
311 
312 4.      Report the unconfigured PD (system PD) to OS.
313 
314 5.      Add the IEEE SGL support to the driver
315 
316 6.      Reasign the Application cmds to SAS2 controller
317 
318 1 Release Date    : Thur.July. 24 11:41:51 PST 2008 -
319                        (emaild-id:megaraidlinux@lsi.com)
320                        Sumant Patro
321                        Bo Yang
322 
323 2 Current Version : 00.00.04.01
324 3 Older Version   : 00.00.03.22
325 
326 1. Add the new controller (0078, 0079) support to the driver
327        Those controllers are LSI's next generatation(gen2) SAS controllers.
328 
329 1 Release Date    : Mon.June. 23 10:12:45 PST 2008 -
330                        (emaild-id:megaraidlinux@lsi.com)
331                        Sumant Patro
332                        Bo Yang
333 
334 2 Current Version : 00.00.03.22
335 3 Older Version   : 00.00.03.20
336 
337 1. Add shutdown DCMD cmd to the shutdown routine to make FW shutdown proper.
338 2. Unexpected interrupt occurs in HWR Linux driver, add the dumy readl pci flush will fix this issue.
339 
340 1 Release Date    : Mon. March 10 11:02:31 PDT 2008 -
341                         (emaild-id:megaraidlinux@lsi.com)
342                         Sumant Patro
343                         Bo Yang
344 
345 2 Current Version : 00.00.03.20-RC1
346 3 Older Version   : 00.00.03.16
347 
348 1. 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 
352 2. 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 
357 3. 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 
362 1 Release Date    : Thur. Nov. 07 16:30:43 PST 2007 -
363                         (emaild-id:megaraidlinux@lsi.com)
364                         Sumant Patro
365                         Bo Yang
366 
367 2 Current Version : 00.00.03.16
368 3 Older Version   : 00.00.03.15
369 
370 1. 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 
373 1 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
374                         (emaild-id:megaraidlinux@lsi.com)
375                         Sumant Patro
376                         Bo Yang
377 
378 2 Current Version : 00.00.03.15
379 3 Older Version   : 00.00.03.14
380 
381 1. 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 
389 1 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
390                         (emaild-id:megaraidlinux@lsi.com)
391                         Sumant Patro
392                         Bo Yang
393 
394 2 Current Version : 00.00.03.14
395 3 Older Version   : 00.00.03.13
396 
397 1. 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 
408 1 Release Date    : Fri. June. 15 16:30:43 PST 2007 -
409                         (emaild-id:megaraidlinux@lsi.com)
410                         Sumant Patro
411                         Bo Yang
412 
413 2 Current Version : 00.00.03.13
414 3 Older Version   : 00.00.03.12
415 
416 1. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io.
417 
418 On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote:
419 It 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 
426 1 Release Date    : Sat May. 12 16:30:43 PST 2007 -
427                         (emaild-id:megaraidlinux@lsi.com)
428                         Sumant Patro
429                         Bo Yang
430 
431 2 Current Version : 00.00.03.12
432 3 Older Version   : 00.00.03.11
433 
434 1.  When MegaSAS driver receives reset call from OS, driver waits in reset
435 routine for max 3 minutes for all pending command completion. Now driver will
436 call completion routine every 5 seconds from the reset routine instead of
437 waiting for depending on cmd completion from isr path.
438 
439 1 Release Date    : Mon Apr. 30 10:25:52 PST 2007 -
440                         (emaild-id:megaraidlinux@lsi.com)
441                         Sumant Patro
442                         Bo Yang
443 
444 2 Current Version : 00.00.03.11
445 3 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 
470 1 Release Date    : Fri Feb. 09 14:36:28 PST 2007 -
471                         (emaild-id:megaraidlinux@lsi.com)
472                         Sumant Patro
473                         Bo Yang
474 
475 2 Current Version : 00.00.03.09
476 3 Older Version   : 00.00.03.08
477 
478 i.      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 
483 1 Release Date    : Mon Feb. 05 11:35:24 PST 2007 -
484                         (emaild-id:megaraidlinux@lsi.com)
485                         Sumant Patro
486                         Bo Yang
487 2 Current Version : 00.00.03.08
488 3 Older Version   : 00.00.03.07
489 
490 i.      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 
499 ii.     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 
506 1 Release Date    : Sun Jan. 14 11:21:32 PDT 2007 -
507                  Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
508 2 Current Version : 00.00.03.07
509 3 Older Version   : 00.00.03.06
510 
511 i.      bios_param entry added in scsi_host_template that returns disk geometry
512         information.
513 
514 1 Release Date    : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
515 2 Current Version : 00.00.03.06
516 3 Older Version   : 00.00.03.05
517 
518 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.
519 2. 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 do not accept any processing of pending cmds/accept any cmd from OS
521 
522 1 Release Date    : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
523 2 Current Version : 00.00.03.05
524 3 Older Version   : 00.00.03.04
525 
526 i.      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>
531 ii.     All compiler warnings removed
532 iii.    megasas_ctrl_info struct reverted to 3.02 release
533 iv.     Default value of megasas_dbg_lvl set to 0
534 v.      Removing in megasas_exit the sysfs entry created for megasas_dbg_lvl
535 vi.     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 
539 1 Release Date    : Wed Sep 13 14:22:51 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
540 2 Current Version : 00.00.03.04
541 3 Older Version   : 00.00.03.03
542 
543 i.      Added Reboot notify
544 ii.     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 
547 1 Release Date    : Tue Aug 22 16:33:14 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
548 2 Current Version : 00.00.03.03
549 3 Older Version   : 00.00.03.02
550 
551 i.      Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead.
552         New variable added to set dbg level.
553 ii.     Disable interrupt made as fn pointer as they are different for 1068 / 1078
554 iii.    Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and
555         3 SGE for 32 bit SGL
556 iv.     Tasklet added for cmd completion
557 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.
558 vi.     megasas_ctrl_prop structure updated (based on FW struct)
559 vii.    Added print : FW now in Ready State during initialization
560 
561 1 Release Date    : Sun Aug 06 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
562 2 Current Version : 00.00.03.02
563 3 Older Version   : 00.00.03.01
564 
565 i.      Added FW transition state for Hotplug scenario
566 
567 1 Release Date    : Sun May 14 22:49:52 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
568 2 Current Version : 00.00.03.01
569 3 Older Version   : 00.00.02.04
570 
571 i.      Added support for ZCR controller.
572 
573                 New device id 0x413 added.
574 
575 ii.     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 
583 1 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
584 2 Current Version : 00.00.02.04
585 3 Older Version   : 00.00.02.04
586 
587 i.      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 
595 1 Release Date    : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
596 2 Current Version : 00.00.02.04
597 3 Older Version   : 00.00.02.04
598 
599 i.      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                 
606 1 Release Date    : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro
607                                                         <Sumant.Patro@lsil.com>
608 2 Current Version : 00.00.02.04
609 3 Older Version   : 00.00.02.02
610 i.      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 
618 1 Release Date    : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
619 2 Current Version : 00.00.02.02
620 3 Older Version   : 00.00.02.01
621 
622 i.      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 
627 1 Release Date    : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com>
628 2 Current Version : 00.00.02.00-rc4
629 3 Older Version   : 00.00.02.01
630 
631 i.      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 
637 ii.     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>

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