path: root/Documentation
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authorYang, Bo <Bo.Yang@lsi.com>2010-10-12 07:21:59 -0600
committerJames Bottomley <James.Bottomley@suse.de>2010-10-26 11:11:12 -0500
commite340c3537239d5b6a2b21d4245c8577d457b0476 (patch)
tree2204a1ca8ee515b4a13ac8f22abe22560391347e /Documentation
parent707e09bd867cee4cd0e5bff0a67513aa0232fcec (diff)
[SCSI] megaraid_sas: Version and documentation update
Signed-off-by Bo Yang <bo.yang@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'Documentation')
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/scsi/ChangeLog.megaraid_sas b/Documentation/scsi/ChangeLog.megaraid_sas
index 30023568805..00301ed9c37 100644
--- a/Documentation/scsi/ChangeLog.megaraid_sas
+++ b/Documentation/scsi/ChangeLog.megaraid_sas
@@ -1,3 +1,50 @@
+1 Release Date : Thur. May 03, 2010 09:12:45 PST 2009 -
+ (emaild-id:megaraidlinux@lsi.com)
+ Bo Yang
+2 Current Version :
+3 Older Version :
+1. Add the Online Controller Reset (OCR) to the Driver.
+ OCR is the new feature for megaraid_sas driver which
+ will allow the fw to do the chip reset which will not
+ affact the OS behavious.
+ To add the OCR support, driver need to do:
+ a). reset the controller chips -- Xscale and Gen2 which
+ will change the function calls and add the reset function
+ related to this two chips.
+ b). during the reset, driver will store the pending cmds
+ which not returned by FW to driver's pending queue. Driver
+ will re-issue those pending cmds again to FW after the OCR
+ finished.
+ c). In driver's timeout routine, driver will report to
+ OS as reset. Also driver's queue routine will block the
+ cmds until the OCR finished.
+ d). in Driver's ISR routine, if driver get the FW state as
+ state change, FW in Failure status and FW support online controller
+ reset (OCR), driver will start to do the controller reset.
+ e). In driver's IOCTL routine, the application cmds will wait for the
+ OCR to finish, then issue the cmds to FW.
+ f). Before driver kill adapter, driver will do last chance of
+ OCR to see if driver can bring back the FW.
+2. Add the support update flag to the driver to tell LSI megaraid_sas
+ application which driver will support the device update. So application
+ will not need to do the device update after application add/del the device
+ from the system.
+3. In driver's timeout routine, driver will do three time reset if fw is in
+ failed state. Driver will kill adapter if can't bring back FW after the
+ this three times reset.
+4. Add the input parameter max_sectors to 1MB support to our GEN2 controller.
+ customer can use the input paramenter max_sectors to add 1MB support to GEN2
+ controller.
1 Release Date : Thur. Oct 29, 2009 09:12:45 PST 2009 -
Bo Yang