sata_mv important note

sata_mv important note

[Jeff Garzik]

For sata_mv users, you should be aware of three things:

1) The Marvell driver is experimental, and not yet considered ready for 
production use.  As Kconfig notes: HIGHLY EXPERIMENTAL.

2) There are PCI Message Signalled Interrupt (MSI) problems that are not 
yet diagnosed.  Workaround is to disable MSI.

3) There are still some errata that are not yet implemented.  Thus, for 
some systems, you may see either lockups or data corruption.  That's the 
price of running a HIGHLY EXPERIMENTAL driver.

Rest assured that all problem reports are read, even if you don't 
receive a reply.  After enough feedback is received, the exact problem 
becomes more clear.

	Jeff

Re: sata_mv important note

[Sebastian Kuzminsky]

Jeff Garzik <jgarzik@pobox.com> wrote:
> For sata_mv users, you should be aware of three things:
> 
> 1) The Marvell driver is experimental, and not yet considered ready for 
> production use.  As Kconfig notes: HIGHLY EXPERIMENTAL.

Right, understood.

Can anyone recommend a 4xSATA (or more) controller on a PCI-X card that
_is_ ready for production use?  eSATA ports are prefered but not required.
Support for hotplug, power management (spindown) and SMART is prefered
but not required.

Anyone?


> Rest assured that all problem reports are read, even if you don't 
> receive a reply.  After enough feedback is received, the exact problem 
> becomes more clear.

Thanks Jeff!


-- 
Sebastian Kuzminsky

Re: sata_mv important note

[Mark Lord]

Sebastian Kuzminsky wrote:
>
> Can anyone recommend a 4xSATA (or more) controller on a PCI-X card that
> _is_ ready for production use?  eSATA ports are prefered but not required.
> Support for hotplug, power management (spindown) and SMART is prefered
> but not required.

The Pacific Digital QStor cards come in PCIX variants,
and support SATA2.  Hotplug et al is supported in the hardware,
but not in the Libata driver.  ATAPI is not supported at all.

Cheers

Re: sata_mv important note

[Erik Slagter]

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On Tue, 2006-01-17 at 14:34 -0500, Mark Lord wrote:
> Sebastian Kuzminsky wrote:
> >
> > Can anyone recommend a 4xSATA (or more) controller on a PCI-X card that
> > _is_ ready for production use?  eSATA ports are prefered but not required.
> > Support for hotplug, power management (spindown) and SMART is prefered
> > but not required.
> 
> The Pacific Digital QStor cards come in PCIX variants,
> and support SATA2.  Hotplug et al is supported in the hardware,
> but not in the Libata driver.  ATAPI is not supported at all.

Using which driver? (just curious)

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Re: sata_mv important note

[Jeff Garzik]

Erik Slagter wrote:
> On Tue, 2006-01-17 at 14:34 -0500, Mark Lord wrote:
> 
>>Sebastian Kuzminsky wrote:
>>
>>>Can anyone recommend a 4xSATA (or more) controller on a PCI-X card that
>>>_is_ ready for production use?  eSATA ports are prefered but not required.
>>>Support for hotplug, power management (spindown) and SMART is prefered
>>>but not required.
>>
>>The Pacific Digital QStor cards come in PCIX variants,
>>and support SATA2.  Hotplug et al is supported in the hardware,
>>but not in the Libata driver.  ATAPI is not supported at all.
> 
> 
> Using which driver? (just curious)

sata_qstor

	Jeff

Re: sata_mv important note

[Erik Slagter]

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On Wed, 2006-01-18 at 11:14 -0500, Jeff Garzik wrote:
> >>The Pacific Digital QStor cards come in PCIX variants,
> >>and support SATA2.  Hotplug et al is supported in the hardware,
> >>but not in the Libata driver.  ATAPI is not supported at all.
> > 
> > 
> > Using which driver? (just curious)
> 
> sata_qstor

Bummer. I silently hoped it would be using ahci, but I will dream on ;-)

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Re: sata_mv important note

[Mark Lord]

Erik Slagter wrote:
>
>>sata_qstor
>
> Bummer. I silently hoped it would be using ahci, but I will dream on ;-)

It has a UHCI interface rather than AHCI.

There is an alternative SCSI LLD for it that supports all of the goodies
(native and legacy tagged queuing, RAID 0/1/10, hot ("live") insertion/removal,
etc.. but it is probably a bit out of date now.  Last updated a year ago.
And not in the main tree.

Cheers

Re: sata_mv important note

[Randy.Dunlap]

On Thu, 19 Jan 2006, Mark Lord wrote:

> Erik Slagter wrote:
> >
> >>sata_qstor
> >
> > Bummer. I silently hoped it would be using ahci, but I will dream on ;-)
>
> It has a UHCI interface rather than AHCI.

UHCI as in USB Universal Host Controller Interface??
or something else?

> There is an alternative SCSI LLD for it that supports all of the goodies
> (native and legacy tagged queuing, RAID 0/1/10, hot ("live") insertion/removal,
> etc.. but it is probably a bit out of date now.  Last updated a year ago.
> And not in the main tree.

-- 
~Randy

Re: sata_mv important note

[Erik Slagter]

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On Thu, 2006-01-19 at 12:05 -0500, Mark Lord wrote:

> >>sata_qstor
> > Bummer. I silently hoped it would be using ahci, but I will dream on ;-)
> 
> It has a UHCI interface rather than AHCI.
> 
> There is an alternative SCSI LLD for it that supports all of the goodies
> (native and legacy tagged queuing, RAID 0/1/10, hot ("live") insertion/removal,
> etc.. but it is probably a bit out of date now.  Last updated a year ago.
> And not in the main tree.

So it's actually an USB1.2 device?! Looks a bit slow to me?!

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Re: sata_mv important note

[Mark Lord]

Randy.Dunlap wrote:
> On Thu, 19 Jan 2006, Mark Lord wrote:
> 
> 
>>Erik Slagter wrote:
>>>>sata_qstor
>>>Bummer. I silently hoped it would be using ahci, but I will dream on ;-)
>>It has a UHCI interface rather than AHCI.
 >
> UHCI as in USB Universal Host Controller Interface??
> or something else?

Something else.  Full native SATA PCI-X.

Cheers

Re: sata_mv important note

[Erik Slagter]

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On Thu, 2006-01-19 at 12:11 -0500, Mark Lord wrote:
> >>>>sata_qstor
> >>>Bummer. I silently hoped it would be using ahci, but I will dream on ;-)
> >>It has a UHCI interface rather than AHCI.
>  >
> > UHCI as in USB Universal Host Controller Interface??
> > or something else?
> 
> Something else.  Full native SATA PCI-X.

Still bummer ;-)

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