Bug 159351 - SHPCHP driver doesn't program _HPP values and enable PERR and SERR properly
SHPCHP driver doesn't program _HPP values and enable PERR and SERR properly
Status: CLOSED WONTFIX
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
4.0
All Linux
high Severity high
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Assigned To: Keiichiro Tokunaga
Brian Brock
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Depends On:
Blocks: 176344 198868 222397
  Show dependency treegraph
 
Reported: 2005-06-01 16:30 EDT by David Milburn
Modified: 2007-11-30 17:07 EST (History)
6 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Environment:
Last Closed: 2007-09-11 11:32:54 EDT
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)
Upstream patch to enable PERR and SERR. (1.18 KB, patch)
2005-06-01 16:31 EDT, David Milburn
no flags Details | Diff
Upstream patch to program _HPP values properly. (1.10 KB, patch)
2005-06-01 16:32 EDT, David Milburn
no flags Details | Diff

  None (edit)
Description David Milburn 2005-06-01 16:30:03 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050302 Firefox/1.0.1 Fedora/1.0.1-1.3.2

Description of problem:
SHPCHP driver doesn't program command register to 
enable PERR and SERR properly, and doesn't program
_HPP values properly.

Version-Release number of selected component (if applicable):
kernel-2.6.9-5.0.3.EL-ia64

How reproducible:
Always

Steps to Reproduce:
1. Hot-add the PCI device onto the SHPC based PCI hotplug slot.
2.
3.
  

Actual Results:  The following registeres for PCI devices being hot-added will 
not be programed properly.
  
o Cache Line Size
o Latncy Timer
o SERR
o PERR


Expected Results:  The following registeres for PCI devices being hot-added 
are programed properly.
       
o Cache Line Size
o Latncy Timer
o SERR
o PERR


Additional info:

Attaching 2 patches to fix this problem, both have been 
accepted upstream.

http://sourceforge.net/mailarchive/forum.php?thread_id=7332765&forum_id=765
http://kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-03-pci/
Comment 1 David Milburn 2005-06-01 16:31:49 EDT
Created attachment 115063 [details]
Upstream patch to enable PERR and SERR.
Comment 2 David Milburn 2005-06-01 16:32:36 EDT
Created attachment 115064 [details]
Upstream patch to program _HPP values properly.
Comment 9 Linda Wang 2006-03-15 15:59:15 EST
Due to limited engr capacity for U4, will move this to 
U5 prop. 
Comment 14 Keiichiro Tokunaga 2007-02-26 12:35:14 EST
It has been agreed to defer this bug to 4.6 in it73448.
Comment 17 Luming Yu 2007-08-28 05:20:48 EDT
Is this request still needed?
Comment 19 Luming Yu 2007-08-30 22:46:14 EDT
>1. Hot-add the PCI device onto the SHPC based PCI hotplug slot.
Comment 20 Luming Yu 2007-08-30 22:49:15 EDT
Re: >1. Hot-add the PCI device onto the SHPC based PCI hotplug slot.

It sounds like a generic problem rather than ia64 specific problem.
So I think it make sense to move it to generic hardware category.
Comment 22 Keiichiro Tokunaga 2007-09-11 11:32:54 EDT
Closing this bug as Fujitsu does not request this anymore and there is any other
vendors requesting.

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