RE: About test suites for linux hot plug

[Scott Murray <scottm@somanetworks.com>]

On Thu, 28 Nov 2002, Guo, Min wrote:

> Here is my initial test suite  for cPCI (ZT5084 platform) and Compaq with
> e100 and e1000 hotplug network devices,
> for the other hot plug device and features, I will give out the test suites
> later. 

Your testcase seems reasonable, but having the PCI device appear/disappear 
is IMO the trivial part of PCI hotplug.  The vast majority of the problems
I encountered while writing the cPCI drivers involved PCI resources.  Most 
of my manual testing revolves around checking the contents of /proc/iomem 
and /proc/ioports before and after inserts and removes, as well as looking 
at the output of "lspci -vvv".  With a fixed set of hardware, it may be 
possible to come up with testcases for resource allocation, but the general
case is probably difficult to automate.

Something else to be aware of is that eventually I plan to support 
hardware that does not expose HS_CSR through the PCI extended capabilities.
It looks like your testcase as it stands now will break if run in a setup
that had such hardware. 

Scott

PS: Are you working with Harold Yang?  He's also at Intel but seems to be
    having troubles using cPCI hotplug on his ZT5084 system.


-- 
Scott Murray
SOMA Networks, Inc.
Toronto, Ontario
e-mail: scottm@somanetworks.com



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