[ofw] [PATCH 1/4] docs/install: document an installation method

[Sean Hefty]

>One thing worth noting is that if you already have the InfiniBand HCA class
>registered (from a previous WinOF driver install, for example) and that version
>of the drivers did not include all the upper filters, the class registration
>will *not* be updated, and you will not have all the filters installed.  I've
>had this issue when upgrading from a version of the drivers that didn't include
>winverbs to one that did, and expected winverbs to work post-upgrade.

I haven't looked at cluster wide uninstall-everything yet, but I think 'clusrun
ibcleanup.bat' may work to handle this case.  Hopefully, it's not really an
issue going forward, since the upper filters are in place now.

What's needed is some sort of diag to report driver, library, executable file
info back.

>You can add upper filters using devcon (from the WDK), or you can edit the
>registry for the InfiniBand HCA class (under
>HKLM\SYSTEM\CurrentControlSet\Control\Class\<IB class GUID>.  Note that neither
>of the previous two steps should be attempted by end-users, unless you know
>exactly what you're doing.

I frequently use devcon, just haven't yet across the cluster.  I should have
depwo.bat copy it as part of the deployment, with additional documentation in
the install.txt file describing how to enable/disable the stack in order to
update filter drivers.

>Oh, and lastly, it may be useful to have a means of rebooting the cluster into
>safe mode to recover things if the driver update caused a distributed BSOD...

Any ideas for this?

- Sean