/R option should be "on" by default...

[ecsnl]

I'm sending this message to Ben Rietbroek who is working on some
OS2AHCI points.

One thing that keeps coming up in some cases is that on systems with an
Intel disc controller you need the /R option specified.
In some cases the system is able to boot with from the CD but it does
not recognize the hard disc.
Using the /R option fixes.

In the documentation this is written:
/r Reset ports during initialization (default = off

unless the [Intel] AHCI controller was found to

be

initialized by the BIOS in SATA mode)

My question what would the result be to do this by default (to always
initialize) the controller.
Or will this just "fix" some systems (no user action needed) and make
other systems hang ?

[ecsnl]

Hi Roderick, hi Ben,

I talked to Christian about this and he, too, has no objections:

Resetting the devices during startup will require slightly more time during the boot sequence, othewise there should be no negative effect. In theory, resetting a CD recorder may cause it to lose information about half-complete CDs (e.g. on an old Yamaha CDR100) but this is a moot point today as most recorders update the PMA after each track and nobody really expects a half-written CD to survive a reboot and still be usable.

Bye
Markus

[ecsnl]

In other words Ben could you modify the behavior that the driver always behaves as if the /R is done by default.

And create a /!R switch so you can switch it of.

Thanks,

Roderick

[rousseau]

Hi all,

The change is made in r147.
Option /r is now on by default and can be turned off with /!r.
However, when an Intel controller is detected to be programmed in SATA mode by the BIOS,
then the ports will still be reset anyway, even when /!r was specified.

Thanks Markus and Christian for your feedback.
(And kudo's for the super readable code you guys wrote!)

Regards,

Ben.