Messages in this thread | | | Date | Tue, 20 Sep 2022 17:17:48 +0100 | From | Jonathan Cameron <> | Subject | Re: [RFC PATCH 7/9] cxl/test: Add generic mock events |
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On Thu, 15 Sep 2022 11:53:29 -0700 Ira Weiny <ira.weiny@intel.com> wrote:
> On Thu, Aug 25, 2022 at 12:31:19PM +0100, Jonathan Cameron wrote: > > On Fri, 12 Aug 2022 22:32:41 -0700 > > ira.weiny@intel.com wrote: > > > > > From: Ira Weiny <ira.weiny@intel.com> > > > > > > Facilitate testing basic Get/Clear Event functionality by creating > > > multiple logs and generic events with made up UUID's. > > > > > > Data is completely made up with data patterns which should be easy to > > > spot in trace output. > > Hi Ira, > > > > I'm tempted to hack the QEMU emulation for this in with appropriately > > complex interface to inject all the record types... > > Every time I look at the QEMU code it makes my head spin. :-(
You get used to it ;)`
> > I really thought about adding some support there. And I think for irq's it may > work better? But after your talk today I did a quick search to see what it > would take to do irqs in QEMU and got even more confused. :-(
Copy an example - though we haven't upstreamed any yet...
Either...
https://gitlab.com/jic23/qemu/-/commit/958fec58582b5cc910d2da4e2b855e134bb2c0c3#3dfd54f69a5f2382ddf5a6c00a52546d8b57316e_0_169
Or the CPMU one.
https://lore.kernel.org/all/20220831153336.16165-2-Jonathan.Cameron@huawei.com/ to setup then look for msix_notify in
https://lore.kernel.org/all/20220831153336.16165-4-Jonathan.Cameron@huawei.com/
> > > Lots to do there though, so not sure where this fits in my priority list! > > I bet it is higher on mine! ;-)
:)
> > > > > > > > > Test traces are easy to obtain with a small script such as this: > > > > > > #!/bin/bash -x > > > > > > devices=`find /sys/devices/platform -name cxl_mem*` > > > > > > # Generate fake events if reset is passed in > > > > reset is rather unintuitive naming. > > > > fill_event_queue maybe or something more in that direction? > > Fair enough... Naming is hard and I'm one of the worst. > > I've changed to > > <sysfs>/.../event_fill_queue > <sysfs>/.../event_trigger > > Thoughts?
Works for me.
..
J
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