Bug 142720

Summary: Unsupported ATIIXP IDE chipset
Product: [Fedora] Fedora Reporter: Enrico Scholz <rh-bugzilla>
Component: kernelAssignee: Alan Cox <alan>
Status: CLOSED ERRATA QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 3CC: davej, j, wtogami
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OS: Linux   
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Last Closed: 2005-09-05 07:10:20 UTC Type: ---
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Description Enrico Scholz 2004-12-13 11:58:27 UTC 
Description of problem:

The ATIIXP chipsets with ID 1002:4379 and 1002:4376 are unsupported by
the kernel. This causes PIO mode operation with horrible performance
and triggers bug #142713.

At least for the :4379 one, DMA seems to work without problems when
doing

| static struct pci_device_id atiixp_pci_tbl[] = {
|         { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|+        { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP_IDE+0x30, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|         { 0, },
| };

in drivers/ide/pci/atiixp.c and inserting it as a separate module. I
could not test the :4376 one because I am unable to build the complete
kernel (build-failures on AMD64).



Version-Release number of selected component (if applicable):

kernel-2.6.9-1.681_FC3  (both i686 and x86_64)


How reproducible:

100%
Comment 1 Sitsofe Wheeler 2004-12-13 18:14:39 UTC 
Sounds a bit like bug #142647 (although that is a different vendor id?)
Comment 2 Enrico Scholz 2004-12-17 10:35:30 UTC 
Bug #142647 seems to be fixed upstream already. But 1002:437[69] are still
unsupported.
Comment 3 Enrico Scholz 2004-12-21 18:36:15 UTC 
a trivial patch for 1002:4379 can be found at
http://marc.theaimsgroup.com/?l=linux-ide&m=110357606225070&w=2

this adds support for 1002:4376 also, but I see data-corruption on
CD-ROM drives. It will need further tests...
Comment 4 Dave Jones 2005-07-15 19:40:54 UTC 
An update has been released for Fedora Core 3 (kernel-2.6.12-1.1372_FC3) which
may contain a fix for your problem.   Please update to this new kernel, and
report whether or not it fixes your problem.

If you have updated to Fedora Core 4 since this bug was opened, and the problem
still occurs with the latest updates for that release, please change the version
field of this bug to 'fc4'.

Thank you.