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Re: Marvell 88SE9230 AHCI?

On Thu, Jul 24, 2014 at 02:24:35PM +0900, Masanobu SAITOH wrote:
> On 2014/07/24 14:17, Masanobu SAITOH wrote:
> >On 2014/07/24 14:16, Masanobu SAITOH wrote:
> >>On 2014/07/24 1:31, Manuel Bouyer wrote:
> >>>On Wed, Jul 23, 2014 at 08:46:34AM -0400, Thor Lancelot Simon wrote:
> >>>>I just ordered a Supermicro low-power rackmount x86 machine which -- I
> >>>>discovered after ordering it -- uses a Marvell 88SE9230 as a SATA 
> >>>>controller.
> >>>>
> >>>>>From FreeBSD's ahci.c, I see this is approximately an AHCI compatible
> >>>>controller but that it has some quirks.\
> I noticed that quirk, too. I checked their change one month ago.
> Perhaps the following changes might help:

Those changes seem to modify reset behavior in a way I don't quite understand
(what's the business with clearing and "preparing" the FIS?) and to change
which register is checked for a "signature" after a device is reset.

It appears to me we already always use the register FreeBSD uses only if the
quirk is present.  Since I don't understand what the other change does I am
not sure how to port it to our driver.  Does anyone else see what to do?


> >>  I have SuperMicro X9SBAA-F which has 88SE9128.
> >
> >  s/88SE9128/88SE9230/
> >
> >>I tested with two different disks. One works fine
> >>but another didn't work with "IDENTIFY faied" message.
> >>I've not investigated the detail yet.

Same system I have; same symptom I have.  Though I don't have any drive
that works.  We do correctly probe that a target is present and we get
the link speed right at 6.0 Gbit/sec (though we seem to also probe another
spurious target with speed of 1.5Gbit/sec) but IDENTIFY fails.


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