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Date:      Sat, 16 Jul 2011 16:22:24 -0700
From:      Marcel Moolenaar <marcel@xcllnt.net>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        freebsd-ia64@FreeBSD.org
Subject:   Re: [PATCH] Add support for NEW_PCIB to ia64
Message-ID:  <4536024D-2197-4248-B493-43A0BB247572@xcllnt.net>
In-Reply-To: <201107161251.33808.jhb@freebsd.org>
References:  <201107151619.11972.jhb@freebsd.org> <31DB304D-C3A1-44AC-8353-211C7BFE5215@xcllnt.net> <201107161251.33808.jhb@freebsd.org>

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On Jul 16, 2011, at 9:51 AM, John Baldwin wrote:

> On Saturday, July 16, 2011 11:42:55 am Marcel Moolenaar wrote:
>> On Jul 15, 2011, at 1:19 PM, John Baldwin wrote:
>>> Since ia64 uses ACPI, I believe that all it needs is a
>>> bus_adjust_resource() method in its nexus driver to support the new
>>> PCI-PCI bridge driver (and the other patches I posted to current@
>>> recently in regards to Host-PCI bridge driver decoding ranges).  Can
>>> someone try this patch and boot with a kernel with 'options NEW_PCIB' to
>>> check for any regressions?
>> 
>> Looks good. However, (see below) no devices are attached to the only
>> real PCI-PCI bridges in this system (the PCIe root ports). Let me know
>> if that's ok or whether it helps to use my machines so that I can plug
>> something in a slot (I don't have physical access to this one without
>> annoying Sean :-)
> 
> Hmm, a thorough test requires a device behind a PCI-PCI bridge. :-/

As it happens, I don't have machines with real PCI-PCI bridges; only
PCI host controllers. Since nothing broke that I can test, I can not
see any regressions.

Unless someone else can test real PCI-PCI bridges with an actual device
on the subordinate bus(ses), I think we can change ia64 to NEW_PCIB.

FYI,

-- 
Marcel Moolenaar
marcel@xcllnt.net





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