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From"Yang, Bo" <>
DateMon, 21 Jun 2010 09:35:31 -0600
SubjectRE: [PATCH 1/12] scsi: megaraid_sas - Online Controller Reset - I: Enable Online Controller Reset Bit in register related functions
James,

Attached is the changelog for OCR.

Signed-off-by Bo Yang<bo.yang@lsi.com>
---
Documentation/scsi/ChangeLog.megaraid_sas | 33 ++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff -rupN old/Documentation/scsi/ChangeLog.megaraid_sas new/Documentation/scsi/ChangeLog.megaraid_sas
--- old/Documentation/scsi/ChangeLog.megaraid_sas 2010-06-20 03:41:31.000000000 -0400
+++ new/Documentation/scsi/ChangeLog.megaraid_sas 2010-06-20 03:55:42.000000000 -0400
@@ -1,3 +1,36 @@
+1 Release Date : Thur. May 03, 2010 09:12:45 PST 2009 -
+ (emaild-id:megaraidlinux@lsi.com)
+ Bo Yang
+
+2 Current Version : 00.00.04.17.1-rc1
+3 Older Version : 00.00.04.17.1-rc1
+
+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.
+
1 Release Date : Thur. Oct 29, 2009 09:12:45 PST 2009 -
(emaild-id:megaraidlinux@lsi.com)
Bo Yang

-----Original Message-----
From: James Bottomley [mailto:James.Bottomley@suse.de]
Sent: Sunday, June 20, 2010 4:49 PM
To: Yang, Bo
Cc: Yinghai Lu; linux-scsi@vger.kernel.org; akpm@osdl.org; linux-kernel@vger.kernel.org
Subject: RE: [PATCH 1/12] scsi: megaraid_sas - Online Controller Reset - I: Enable Online Controller Reset Bit in register related functions
On Sun, 2010-06-20 at 14:19 -0600, Yang, Bo wrote:
> Yes.

OK, can you give me the single changelog for this one commit, then,
please?

Thanks,

James


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