On 10/11/2017 03:27 PM, Bjorn Helgaas wrote:
On Tue, Sep 26, 2017 at 04:03:13PM -0400, Sinan Kaya wrote:
On 9/26/2017 3:52 PM, James Puthukattukaran wrote:
I think you want to do the part above as part of a quirk that runs before
the probe.
I don't think there's a way to run this early enough?
Bjorn?
I have seen multiple quirk types in quirks.c some prefixed with EARLY and
other LATE.
I'm hoping an early quirk on the switch would be early enough, since
the workaround needs to be done for devices downstream from the
switch.
The problem is that this won't work for hotplug, which is where this bug
is exposed. The issue is really moot for boot time since the requester
id for down stream devices was "locked in" prior to enabling ACS when
the BIOS probes the devices present. So, this issue is for when a device
is hotplugged downstream to this IDT switch.
James
