Messages in this thread | | | Date | Tue, 16 Oct 2007 16:41:00 -0400 | From | Mark Lord <> | Subject | Re: PCIe Hotplug: NFG unless I boot with card already inserted. |
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Kristen Carlson Accardi wrote: > On Tue, 16 Oct 2007 14:39:33 -0400 > Mark Lord <lkml@rtr.ca> wrote: > >> Another thing: if a card is already in the slot before pciehp is loaded >> (under any circumstances), then pciehp does *not* see the card until I >> unplug/replug it.
You mean that the existing code does not handle it properly. The hardware can see the card just fine, as reflected in the slot status bits.
> One other thing to note here, the proper operation of hot plug dictates that > if you boot your laptop with no adapter in the slot, you must first load > the driver in order for the new adapter interrupt to be captured. So, > if you insert a card without the driver loaded, it will not be enumerated > by PCI until you remove it and the reinsert it.
Bull puckey.
If there's already a card in the slot when we turn on the power, the Linux kernel should find and use that card.
This is flawed, and needs fixing.
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