On Mon, Sep 17, 2007 at 01:46:01PM +0200, Tejun Heo wrote:
> failures and would really like to know what's broken. The reason can be
> one of the following two.
>
> 1. libata itself isn't doing anything wrong but using SCSI for mid and
> high level drivers are causing problems as more types of
On Mon, Sep 17, 2007 at 07:00:03AM +0200, Tejun Heo wrote:
> I wonder whether we should be using similar check in generic path too.
> We have quite a few cases where MWDMA ATAPI devices choking on commands
> with small transfer sizes. I don't think we'll experience significant
> performance
On Mon, Sep 17, 2007 at 07:00:03AM +0200, Tejun Heo wrote:
I wonder whether we should be using similar check in generic path too.
We have quite a few cases where MWDMA ATAPI devices choking on commands
with small transfer sizes. I don't think we'll experience significant
performance
On Mon, Sep 17, 2007 at 01:46:01PM +0200, Tejun Heo wrote:
failures and would really like to know what's broken. The reason can be
one of the following two.
1. libata itself isn't doing anything wrong but using SCSI for mid and
high level drivers are causing problems as more types of
Jeff Garzik wrote:
> Tejun Heo wrote:
>> [cc'ing Albert and linux-ide]
>>
>> Alan Cox wrote:
>>> /from the media. */
> +if (qc->nbytes < 2048)
> +return -EOPNOTSUPP;
> +
> /* No ATAPI DMA in smart mode */
> if (itdev->smart)
>
Tejun Heo wrote:
[cc'ing Albert and linux-ide]
Alan Cox wrote:
/from the media. */
> + if (qc->nbytes < 2048)
> + return -EOPNOTSUPP;
> +
> /* No ATAPI DMA in smart mode */
> if (itdev->smart)
> return -EOPNOTSUPP;
>
This looks like a gross hack. Aren't you
[cc'ing Albert and linux-ide]
Alan Cox wrote:
> /from the media. */
>> > + if (qc->nbytes < 2048)
>> > + return -EOPNOTSUPP;
>> > +
>> > /* No ATAPI DMA in smart mode */
>> > if (itdev->smart)
>> > return -EOPNOTSUPP;
>> >
>>
>> This looks like a gross hack. Aren't
[cc'ing Albert and linux-ide]
Alan Cox wrote:
/from the media. */
+ if (qc-nbytes 2048)
+ return -EOPNOTSUPP;
+
/* No ATAPI DMA in smart mode */
if (itdev-smart)
return -EOPNOTSUPP;
This looks like a gross hack. Aren't you supposed to inspect
the
Tejun Heo wrote:
[cc'ing Albert and linux-ide]
Alan Cox wrote:
/from the media. */
+ if (qc-nbytes 2048)
+ return -EOPNOTSUPP;
+
/* No ATAPI DMA in smart mode */
if (itdev-smart)
return -EOPNOTSUPP;
This looks like a gross hack. Aren't you supposed to
Jeff Garzik wrote:
Tejun Heo wrote:
[cc'ing Albert and linux-ide]
Alan Cox wrote:
/from the media. */
+if (qc-nbytes 2048)
+return -EOPNOTSUPP;
+
/* No ATAPI DMA in smart mode */
if (itdev-smart)
return -EOPNOTSUPP;
This looks like a gross
Jeff Norden wrote:
From: Jeff Norden <[EMAIL PROTECTED]>
Fix "lost" interrupt problem when using dma with CD/DVD drives in some
configurations. This problem can make installing linux from media
impossible for distro's that have switched to libata-only configurations.
The simple fix is to
Jeff Norden wrote:
From: Jeff Norden [EMAIL PROTECTED]
Fix lost interrupt problem when using dma with CD/DVD drives in some
configurations. This problem can make installing linux from media
impossible for distro's that have switched to libata-only configurations.
The simple fix is to
/from the media. */
> > + if (qc->nbytes < 2048)
> > + return -EOPNOTSUPP;
> > +
> >/* No ATAPI DMA in smart mode */
> >if (itdev->smart)
> >return -EOPNOTSUPP;
> >
>
> This looks like a gross hack. Aren't you supposed to inspect
> the command instead and
/from the media. */
+ if (qc-nbytes 2048)
+ return -EOPNOTSUPP;
+
/* No ATAPI DMA in smart mode */
if (itdev-smart)
return -EOPNOTSUPP;
This looks like a gross hack. Aren't you supposed to inspect
the command instead and whitelist the ones you
Jeff Norden writes:
> From: Jeff Norden <[EMAIL PROTECTED]>
>
> Fix "lost" interrupt problem when using dma with CD/DVD drives in some
> configurations. This problem can make installing linux from media
> impossible for distro's that have switched to libata-only configurations.
>
> The
From: Jeff Norden <[EMAIL PROTECTED]>
Fix "lost" interrupt problem when using dma with CD/DVD drives in some
configurations. This problem can make installing linux from media
impossible for distro's that have switched to libata-only configurations.
The simple fix is to eliminate the use of dma
From: Jeff Norden [EMAIL PROTECTED]
Fix lost interrupt problem when using dma with CD/DVD drives in some
configurations. This problem can make installing linux from media
impossible for distro's that have switched to libata-only configurations.
The simple fix is to eliminate the use of dma for
Jeff Norden writes:
From: Jeff Norden [EMAIL PROTECTED]
Fix lost interrupt problem when using dma with CD/DVD drives in some
configurations. This problem can make installing linux from media
impossible for distro's that have switched to libata-only configurations.
The simple fix
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