Messages in this thread | | | Date | Fri, 23 Apr 2004 21:21:09 +0900 | From | Keiichiro Tokunaga <> | Subject | Re: [Pcihpd-discuss] [RFC] New sysfs tree for hotplug |
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Hi Grant,
Thanks for the comments:)
Grant wrote: > On Fri, Apr 16, 2004 at 03:34:36PM -0700, Greg KH wrote: > > > Recent large machines have many PCI devices and some boards that > > > contain devices (e.g. CPU, memory, and/or I/O devices). A certain PCI > > > device (PCI1) might be connected with other one (PCI2), which means that > > > there is a dependency between PCI1 and PCI2. > > > > You have this today? > > I interpreted his comments to mean PCI-PCI Bridges. > eg something like a 4-port NIC which usually has a PCI-PCI bridge > to "isolate" multiple PCI devices (NICs): > +-[60]---01.0-[61]--+-04.0 Digital Equipment Corporation DECchip 21142/43 > | +-05.0 Digital Equipment Corporation DECchip 21142/43 > | +-06.0 Digital Equipment Corporation DECchip 21142/43 > | \-07.0 Digital Equipment Corporation DECchip 21142/43 > ... > > I thought this was already handled though so I may be misunderstanding. > Keiichiro, an example would be very helpful in understanding.
As in an email I sent to Greg, P2P bridge that has hotpluggable slots need to be represented in a hierarchy style. I don't think that kind of P2P bridge is handled yet.
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