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Bug 506151

Summary: RHEL5.4: cxgb3i (open-iscsi) update
Product: Red Hat Enterprise Linux 5 Reporter: kxie
Component: kernelAssignee: Mike Christie <mchristi>
Status: CLOSED ERRATA QA Contact: QE Internationalization Bugs <qe-i18n-bugs>
Severity: high Docs Contact:
Priority: high    
Version: 5.4CC: coughlan, dzickus, mchristi, mgahagan, qcai, syeghiay
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-09-02 08:31:23 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
506151: cxgb3i add kref
none
cxgb3i patch tar ball none

Description kxie 2009-06-15 18:42:25 UTC 
Description of problem:

I am opening this bug to submit a patch series against 2.6.18-153.

There are two patches in the series:

1. cxgb3i -- use kref to track ddp usage

   The iscsi ddp functionality could be used by multiple iscsi entities.
   This patch add a refcnt to keep track of it, so we would not release
   the ddp table pre-maturely. Without this patch, the ddp could be
   disabled in the middle of a scsi read transaction, and the data then 
   would have to be copied into the scsi buffer.

2. cxgb3i -- suppot of different kernel page sizes

   The default kernel pages supported are 4K, 8K, 16K, and 64K. 
   If PAGE_SIZE is not one of the defaults, re-calculate ddp page table
   entries (so that we would reprogrammed the h/w when initializing ddp).
   Without this patch, the ddp functionality would be disabled if the
   PAGE_SIZE is not one of the defaults.
Comment 1 kxie 2009-06-15 18:44:29 UTC 
Created attachment 347983 [details]
506151: cxgb3i add kref
Comment 2 kxie 2009-06-15 18:55:22 UTC 
Created attachment 347985 [details]
cxgb3i patch tar ball
Comment 3 RHEL Program Management 2009-06-15 20:12:24 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.
Comment 6 Don Zickus 2009-06-30 20:22:53 UTC 
in kernel-2.6.18-156.el5
You can download this test kernel from http://people.redhat.com/dzickus/el5

Please do NOT transition this bugzilla state to VERIFIED until our QE team
has sent specific instructions indicating when to do so.  However feel free
to provide a comment indicating that this fix has been verified.
Comment 10 errata-xmlrpc 2009-09-02 08:31:23 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2009-1243.html