[openib-general] Re: [PATCH 9 of 20] ipath - char devices for diagnostics and lightweight subnet management
Bryan O'Sullivan
bos at pathscale.com
Thu Mar 9 20:41:36 PST 2006
On Thu, 2006-03-09 at 17:04 -0800, Greg KH wrote:
> > I don't expect this to be a practical problem. We're planning to add
> > hotplug support to the driver once we have some cycles free.
>
> Ugh, that means it's never going to be there.
>
> All new PCI drivers have the requirement that they work properly in
> hotplug systems, as they should follow the PCI core api. If not, odds
> are they will not be accepted into the tree :(
Okay, maybe we're talking at cross purposes here. We do follow the PCI
core API. We have a __devinit probe and __devexit remove routine, a
MODULE_DEVICE_TABLE, the kernel generates hotplug events when a device
is detected or the driver is unloaded, and so on.
I *assumed* that there was something more that we would need to do in
order to support real hotplug of actual physical cards, but now that I
look more closely, it doesn't appear that there is. At least, there's
nothing in Documentation/pci.txt or LDD3 that indicates to me that we
ought to be doing more.
Am I missing something?
<b
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