How to add a drive to DMA black list?

How to add a drive to DMA black list?

[Anton Altaparmakov]

Hello all,

I have an ide hard drive that misbehaves when the option "enable DMA at 
boot time" (2.4.x kernel) is selected (this is on a on board ide 
controller). But on the other hand I have a Promise Ultra-ATA-100 
controller with an IBM ATA-100 drive that, according to the menuconfig 
information and the information at the top of the driver requires the 
"enable DMA at boot time" feature to be selected.

I tried adding the string that is output for the bad drive by hdparm -i 
into drivers/ide/ide-dma.c::drive_blacklist and 
drivers/ide/ide-dma.c::bad_dma_drives but the kernel still says that it is 
using DMA and the kernel hangs after displaying:

PIIX: chipset revision 2
PIIX: not 100% native mode: will probe irqs later
[snip]
PDC20267: IDE controller on PCI bus 00 dev 98
PDC20267: chipset revision 2
PDC20267: not 100% native mode: will probe irqs later
PDC20267: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
[snip]
hdc: Conner Peripherals 1275MB - CFS1275A, ATA DISK drive
hde: IBM-DTLA-307045, ATA DISK drive
[snip]
hdc: 2496876 sectors (1278 MB) w/64KiB Cache, CHS=2477/16/63, DMA
hde: 90069840 sectors (46116 MB) w/1916KiB Cache, CHS=89355/16/63. UDMA(100)
Partition check:
  hda: hda1 hda2 < hda5 >
  hdc:hdc: timout waiting for DMA
ide_dmaproc: chipset supported ide_dma_timeout func only: 14
hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
_
Dead.

What should I do? Thanks in advance,

Anton

-- 
      "Education is what remains after one has forgotten everything he 
learned in school." - Albert Einstein
-- 
Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / +44-(0)7712-632205(mobile)
Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
Cambridge CB2 3BU    ICQ: 8561279
United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/

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sorted - was: How to add a drive to DMA black list?

[Anton Altaparmakov]

The drive was being added to the black lists fine it's just that I had PIIX 
tuning enabled which caused the good/bad dma tables check to be bypassed 
completely. - So disabling PIIX tuning made my PC boot fine.

Regards,

Anton

At 00:13 17/11/2000, Anton Altaparmakov wrote:
>Hello all,
>
>I have an ide hard drive that misbehaves when the option "enable DMA at 
>boot time" (2.4.x kernel) is selected (this is on a on board ide 
>controller). But on the other hand I have a Promise Ultra-ATA-100 
>controller with an IBM ATA-100 drive that, according to the menuconfig 
>information and the information at the top of the driver requires the 
>"enable DMA at boot time" feature to be selected.
>
>I tried adding the string that is output for the bad drive by hdparm -i 
>into drivers/ide/ide-dma.c::drive_blacklist and 
>drivers/ide/ide-dma.c::bad_dma_drives but the kernel still says that it is 
>using DMA and the kernel hangs after displaying:
>
>PIIX: chipset revision 2
>PIIX: not 100% native mode: will probe irqs later
>[snip]
>PDC20267: IDE controller on PCI bus 00 dev 98
>PDC20267: chipset revision 2
>PDC20267: not 100% native mode: will probe irqs later
>PDC20267: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
>[snip]
>hdc: Conner Peripherals 1275MB - CFS1275A, ATA DISK drive
>hde: IBM-DTLA-307045, ATA DISK drive
>[snip]
>hdc: 2496876 sectors (1278 MB) w/64KiB Cache, CHS=2477/16/63, DMA
>hde: 90069840 sectors (46116 MB) w/1916KiB Cache, CHS=89355/16/63. UDMA(100)
>Partition check:
>  hda: hda1 hda2 < hda5 >
>  hdc:hdc: timout waiting for DMA
>ide_dmaproc: chipset supported ide_dma_timeout func only: 14
>hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
>_
>Dead.
>
>What should I do? Thanks in advance,
>
>Anton
>
>--
>      "Education is what remains after one has forgotten everything he 
> learned in school." - Albert Einstein
>--
>Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / 
>+44-(0)7712-632205(mobile)
>Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
>Cambridge CB2 3BU    ICQ: 8561279
>United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/
>
>-
>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>the body of a message to majordomo@vger.kernel.org
>Please read the FAQ at http://www.tux.org/lkml/

-- 
      "Education is what remains after one has forgotten everything he 
learned in school." - Albert Einstein
-- 
Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / +44-(0)7712-632205(mobile)
Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
Cambridge CB2 3BU    ICQ: 8561279
United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/

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Re: sorted - was: How to add a drive to DMA black list?

[Andre Hedrick]

Then I need to fix that to prevent the bypass that should not happen.

On Fri, 17 Nov 2000, Anton Altaparmakov wrote:

> The drive was being added to the black lists fine it's just that I had PIIX 
> tuning enabled which caused the good/bad dma tables check to be bypassed 
> completely. - So disabling PIIX tuning made my PC boot fine.
> 
> Regards,
> 
> Anton
> 
> At 00:13 17/11/2000, Anton Altaparmakov wrote:
> >Hello all,
> >
> >I have an ide hard drive that misbehaves when the option "enable DMA at 
> >boot time" (2.4.x kernel) is selected (this is on a on board ide 
> >controller). But on the other hand I have a Promise Ultra-ATA-100 
> >controller with an IBM ATA-100 drive that, according to the menuconfig 
> >information and the information at the top of the driver requires the 
> >"enable DMA at boot time" feature to be selected.
> >
> >I tried adding the string that is output for the bad drive by hdparm -i 
> >into drivers/ide/ide-dma.c::drive_blacklist and 
> >drivers/ide/ide-dma.c::bad_dma_drives but the kernel still says that it is 
> >using DMA and the kernel hangs after displaying:
> >
> >PIIX: chipset revision 2
> >PIIX: not 100% native mode: will probe irqs later
> >[snip]
> >PDC20267: IDE controller on PCI bus 00 dev 98
> >PDC20267: chipset revision 2
> >PDC20267: not 100% native mode: will probe irqs later
> >PDC20267: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
> >[snip]
> >hdc: Conner Peripherals 1275MB - CFS1275A, ATA DISK drive
> >hde: IBM-DTLA-307045, ATA DISK drive
> >[snip]
> >hdc: 2496876 sectors (1278 MB) w/64KiB Cache, CHS=2477/16/63, DMA
> >hde: 90069840 sectors (46116 MB) w/1916KiB Cache, CHS=89355/16/63. UDMA(100)
> >Partition check:
> >  hda: hda1 hda2 < hda5 >
> >  hdc:hdc: timout waiting for DMA
> >ide_dmaproc: chipset supported ide_dma_timeout func only: 14
> >hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
> >_
> >Dead.
> >
> >What should I do? Thanks in advance,
> >
> >Anton
> >
> >--
> >      "Education is what remains after one has forgotten everything he 
> > learned in school." - Albert Einstein
> >--
> >Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / 
> >+44-(0)7712-632205(mobile)
> >Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
> >Cambridge CB2 3BU    ICQ: 8561279
> >United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/
> >
> >-
> >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> >the body of a message to majordomo@vger.kernel.org
> >Please read the FAQ at http://www.tux.org/lkml/
> 
> -- 
>       "Education is what remains after one has forgotten everything he 
> learned in school." - Albert Einstein
> -- 
> Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / +44-(0)7712-632205(mobile)
> Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
> Cambridge CB2 3BU    ICQ: 8561279
> United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> Please read the FAQ at http://www.tux.org/lkml/
> 

Andre Hedrick
CTO Timpanogas Research Group
EVP Linux Development, TRG
Linux ATA Development

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Re: sorted - was: How to add a drive to DMA black list?

[Alan Cox]

> Then I need to fix that to prevent the bypass that should not happen.

No you need to fix the PIIX tuning hangs people keep reporting 8)
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Re: sorted - was: How to add a drive to DMA black list?

[Andre Hedrick]

On Fri, 17 Nov 2000, Alan Cox wrote:

> > Then I need to fix that to prevent the bypass that should not happen.
> 
> No you need to fix the PIIX tuning hangs people keep reporting 8)

You can't fix was the docs claim is broken and issuing a channel reset is
the only way out.  Unfortunate, this is what I am looking at doing :-((

Cheers,

Andre Hedrick
CTO Timpanogas Research Group
EVP Linux Development, TRG
Linux ATA Development

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Re: sorted - was: How to add a drive to DMA black list?

[Anton Altaparmakov]

I am sure you knew this perfectly well already but just in case it is helpful:

the offending code is in:

drivers/ide/piix.c::piix_dmaproc [starts on line 402 in 2.4.0-test11-pre5]

It calls piix_config_drive_for_dma and only then calls ide_dmaproc.

It is ide_dmaproc that does the good/bad test so obviously it is called too 
late.

Anton

At 01:26 17/11/2000, Andre Hedrick wrote:

>Then I need to fix that to prevent the bypass that should not happen.
>
>On Fri, 17 Nov 2000, Anton Altaparmakov wrote:
>
> > The drive was being added to the black lists fine it's just that I had 
> PIIX
> > tuning enabled which caused the good/bad dma tables check to be bypassed
> > completely. - So disabling PIIX tuning made my PC boot fine.
> >
> > Regards,
> >
> > Anton
> >
> > At 00:13 17/11/2000, Anton Altaparmakov wrote:
> > >Hello all,
> > >
> > >I have an ide hard drive that misbehaves when the option "enable DMA at
> > >boot time" (2.4.x kernel) is selected (this is on a on board ide
> > >controller). But on the other hand I have a Promise Ultra-ATA-100
> > >controller with an IBM ATA-100 drive that, according to the menuconfig
> > >information and the information at the top of the driver requires the
> > >"enable DMA at boot time" feature to be selected.
> > >
> > >I tried adding the string that is output for the bad drive by hdparm -i
> > >into drivers/ide/ide-dma.c::drive_blacklist and
> > >drivers/ide/ide-dma.c::bad_dma_drives but the kernel still says that 
> it is
> > >using DMA and the kernel hangs after displaying:
> > >
> > >PIIX: chipset revision 2
> > >PIIX: not 100% native mode: will probe irqs later
> > >[snip]
> > >PDC20267: IDE controller on PCI bus 00 dev 98
> > >PDC20267: chipset revision 2
> > >PDC20267: not 100% native mode: will probe irqs later
> > >PDC20267: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
> > >[snip]
> > >hdc: Conner Peripherals 1275MB - CFS1275A, ATA DISK drive
> > >hde: IBM-DTLA-307045, ATA DISK drive
> > >[snip]
> > >hdc: 2496876 sectors (1278 MB) w/64KiB Cache, CHS=2477/16/63, DMA
> > >hde: 90069840 sectors (46116 MB) w/1916KiB Cache, CHS=89355/16/63. 
> UDMA(100)
> > >Partition check:
> > >  hda: hda1 hda2 < hda5 >
> > >  hdc:hdc: timout waiting for DMA
> > >ide_dmaproc: chipset supported ide_dma_timeout func only: 14
> > >hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
> > >_
> > >Dead.
> > >
> > >What should I do? Thanks in advance,
> > >
> > >Anton
> > >
> > >--
> > >      "Education is what remains after one has forgotten everything he
> > > learned in school." - Albert Einstein
> > >--
> > >Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) /
> > >+44-(0)7712-632205(mobile)
> > >Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
> > >Cambridge CB2 3BU    ICQ: 8561279
> > >United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/
> > >
> > >-
> > >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > >the body of a message to majordomo@vger.kernel.org
> > >Please read the FAQ at http://www.tux.org/lkml/
> >
> > --
> >       "Education is what remains after one has forgotten everything he
> > learned in school." - Albert Einstein
> > --
> > Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / 
> +44-(0)7712-632205(mobile)
> > Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
> > Cambridge CB2 3BU    ICQ: 8561279
> > United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to majordomo@vger.kernel.org
> > Please read the FAQ at http://www.tux.org/lkml/
> >
>
>Andre Hedrick
>CTO Timpanogas Research Group
>EVP Linux Development, TRG
>Linux ATA Development
>
>-
>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>the body of a message to majordomo@vger.kernel.org
>Please read the FAQ at http://www.tux.org/lkml/

-- 
      "Education is what remains after one has forgotten everything he 
learned in school." - Albert Einstein
-- 
Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / +44-(0)7712-632205(mobile)
Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
Cambridge CB2 3BU    ICQ: 8561279
United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/

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To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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Re: sorted - was: How to add a drive to DMA black list?

[Andre Hedrick]

On Fri, 17 Nov 2000, Anton Altaparmakov wrote:

> I am sure you knew this perfectly well already but just in case it is helpful:
> 
> the offending code is in:
> 
> drivers/ide/piix.c::piix_dmaproc [starts on line 402 in 2.4.0-test11-pre5]
> 
> It calls piix_config_drive_for_dma and only then calls ide_dmaproc.
> 
> It is ide_dmaproc that does the good/bad test so obviously it is called too 
> late.

Sorry I have not looked at the PIIX code in a long time and forgot that it
was not complete with the table checks.  But I will get there soon.

Cheers,

Andre Hedrick
CTO Timpanogas Research Group
EVP Linux Development, TRG
Linux ATA Development

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Re: How to add a drive to DMA black list?

[Alan Cox]

> I tried adding the string that is output for the bad drive by hdparm -i 
> into drivers/ide/ide-dma.c::drive_blacklist and 
> drivers/ide/ide-dma.c::bad_dma_drives but the kernel still says that it is 
> using DMA and the kernel hangs after displaying:

The black list is for drives with problems, not for controller bugs. Controller
bugs in the Linux code just have to be fixed.


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Re: How to add a drive to DMA black list?

[Anton Altaparmakov]

At 10:52 17/11/2000, Alan Cox wrote:
> > I tried adding the string that is output for the bad drive by hdparm -i
> > into drivers/ide/ide-dma.c::drive_blacklist and
> > drivers/ide/ide-dma.c::bad_dma_drives but the kernel still says that it is
> > using DMA and the kernel hangs after displaying:
>
>The black list is for drives with problems, not for controller bugs. 
>Controller bugs in the Linux code just have to be fixed.

That is obvious. I may be of course wrong, but I would consider this a 
drive problem, considering that another ide drive on the same controller 
works fine with DMA enabled (a QUANTUM TRB850A) while the Conner 
Peripherals 1275MB - CFS1275A fails with DMA enabled. They are in fact both 
attached simultaneously  to the PIIX controller (on different IDE channels, 
both being masters) and one works and the other doesn't... - I should 
probably have stated that when posting but I didn't consider it important 
at the time (and copying by hand from one screen to another doesn't 
encourage copying everything but the essentials...). - Am I missing something?

Regards,

Anton


-- 
      "Education is what remains after one has forgotten everything he 
learned in school." - Albert Einstein
-- 
Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / +44-(0)7712-632205(mobile)
Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
Cambridge CB2 3BU    ICQ: 8561279
United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/

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Re: How to add a drive to DMA black list?

[Alan Cox]

> drive problem, considering that another ide drive on the same controller 
> works fine with DMA enabled (a QUANTUM TRB850A) while the Conner 
> Peripherals 1275MB - CFS1275A fails with DMA enabled. They are in fact both 

And the Conner drives work fine on a VIA MVP3 it seems. You need to try
the drive with multiple controllers to be sure its not a PIIX bug that only
trips on that drive (or indeed a bug in the combination)

Alan

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Re: How to add a drive to DMA black list?

[Anton Altaparmakov]

At 11:26 17/11/2000, Alan Cox wrote:
> > drive problem, considering that another ide drive on the same controller
> > works fine with DMA enabled (a QUANTUM TRB850A) while the Conner
> > Peripherals 1275MB - CFS1275A fails with DMA enabled. They are in fact 
> both
>
>And the Conner drives work fine on a VIA MVP3 it seems. You need to try
>the drive with multiple controllers to be sure its not a PIIX bug that only
>trips on that drive (or indeed a bug in the combination)

I have now tried the drive (which is actually a seagate drive but it 
identifies itself as a conner) on my new Promise ATA-100 controller and the 
drive works fine with DMA enabled. So you were quite right, it's the PIIX 
driver/tuning which kills it.

Anton


-- 
      "Education is what remains after one has forgotten everything he 
learned in school." - Albert Einstein
-- 
Anton Altaparmakov  Voice: +44-(0)1223-333541(lab) / +44-(0)7712-632205(mobile)
Christ's College    eMail: AntonA@bigfoot.com / aia21@cam.ac.uk
Cambridge CB2 3BU    ICQ: 8561279
United Kingdom       WWW: http://www-stu.christs.cam.ac.uk/~aia21/

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