Re: IDE/Promise 20276 FastTrack RAID Doesn't work in 2.4.21, patchattached to fix

[Steven Dake <sdake@mvista.com>]

Samuel Flory wrote:

> Steven Dake wrote:
>
>> Even with special fasttrack feature enabled, my disk devices on the 
>> PDC20276 is not found.  There is code in pci-setup.c which blocks 
>> other PDC controllers, why not the 20276?  Is that code for some 
>> other purpose, or orthagonal to the force option?
>
>
>  The comments would seem to indicate that this is only needed if you 
> have a second controller.  Which leads me to wonder what if I have 3 
> or 4 pdc controllers.

Hmm thats not how I read the code.  My system has a standard IDE device 
as part of the chipset, and then also has a fasttrack controller.  The 
fasttrack controller comes in 2nd, (hence making it the 2nd controller 
and making it marked disabled).  I think your right about the 3rd/4th 
controller though, what happens to those !
-steve

>
>        for (port = 0; port <= 1; ++port) {
>                ide_pci_enablebit_t *e = &(d->enablebits[port]);
>
>                /*
>                 * If this is a Promise FakeRaid controller,
>                 * the 2nd controller will be marked as
>                 * disabled while it is actually there and enabled
>                 * by the bios for raid purposes.
>                 * Skip the normal "is it enabled" test for those.
>                 */
>                if (((d->vendor == PCI_VENDOR_ID_PROMISE) &&
>                     ((d->device == PCI_DEVICE_ID_PROMISE_20262) ||
>                      (d->device == PCI_DEVICE_ID_PROMISE_20265))) &&
>                    (secondpdc++==1) && (port==1))
>                        goto controller_ok;
>
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