Re: [PATCH] pci: Workaround Stratus broken PCIE hierarchy

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 11/11/2011 03:29 PM, Bjorn Helgaas wrote:
On Fri, Nov 11, 2011 at 12:13 PM, Don Dutile<ddutile@xxxxxxxxxx>  wrote:
On 11/11/2011 12:41 PM, James Paradis wrote:

Hmmm... would it be better to do this as a quirk or as a boot
parameter?  I've heard reports that other systems may be running

Hearsay?  if you have definite cases, then please share them,
so folks know when to flip the boot parameter on.  note: it would have to be
an early boot param as well.

It'd definitely be good to know all the specific cases.

But merely sharing them so folks will know when to use the parameter
is a broken model.  We should make it work automatically, either with
some sort of machine-dependent quirk, or (preferably) with a change to
the generic algorithm so it can handle these "broken" topologies along
with all the correct ones.

Bjorn

In this case, doing a check that the parent is downstream PPB and the child is
downstream PPB could be done to identify the broken topology and automatically
scan dev nums > 0.




--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux