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From: Christian Schoenebeck <qemu_oss@crudebyte.com>
To: qemu-devel@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	Laurent Vivier <lvivier@redhat.com>,
	Thomas Huth <thuth@redhat.com>,
	Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>,
	Greg Kurz <groug@kaod.org>
Subject: Re: [PATCH 08/12] tests/9pfs: refactor test names and test devices
Date: Thu, 01 Oct 2020 17:26:13 +0200	[thread overview]
Message-ID: <4474985.DjIeONRcyu@silver> (raw)
In-Reply-To: <bbfcbc42-a7f4-926f-78ef-badcb7c023af@redhat.com>

On Donnerstag, 1. Oktober 2020 16:04:39 CEST Paolo Bonzini wrote:
> >> You're right, this is in fact also a problem for virtio-blk and virtio-
net:
> >>     /* FIXME: every test using these two nodes needs to setup a
> >>     
> >>      * -drive,id=drive0 otherwise QEMU is not going to start.
> >>      * Therefore, we do not include "produces" edge for virtio
> >>      * and pci-device yet.
> >>     
> >>     */
> >>     
> >>     /* FIXME: every test using these nodes needs to setup a
> >>     
> >>      * -netdev socket,id=hs0 otherwise QEMU is not going to start.
> >>      * Therefore, we do not include "produces" edge for virtio
> >>      * and pci-device yet.
> >>      */
> >> 
> >> I still think we should do it like this, because it's closer to the way
> >> that libqos will work long term.
> > 
> > Could you please elaborate why that long term plan bites with the working
> > solution I provided? [patches 1 and 2]
> 
> Because the long term plan is to have a socket/plug mechanism for
> backends where the device can provide a default backend to plug.

Ok, obviously I don't know the details of that future socket/plug plan, but 
what I could also imagine for the long-term: allowing to optionally define 
'config' nodes as subnodes of devices. Maybe that's similar to what you had in 
mind with that socket/plug model.

> The suggested solution is all good for *a different use case*, namely to
> test the same device with different options.  It is just wrong for the
> purpose of selecting a frontend.
> 
> It occurred to me that you could also add a default backend to the
> command line with "-fsdev" (in the libqos driver), and use -set in the
> test to override it.  This is ugly (-set is ugly!) but it would let you
> keep the tests, so it would probably be the best solution.

Ok, I'll have a look at that '*-set' alternative tomorrow.

But on doubt: I will simply disable those the implied pci and virtio tests for 
the time being.

I need the 'local' backend tests and have to move on; they are of much more 
value than those 2 implied pci and virtio tests.

Best regards,
Christian Schoenebeck




  reply	other threads:[~2020-10-01 15:34 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-27 10:43 [PATCH 00/12] 9pfs: add tests using local fs driver Christian Schoenebeck
2020-09-27 10:38 ` [PATCH 01/12] tests/qtest/qgraph: add qemu_name to QOSGraphNode Christian Schoenebeck
2020-09-27 10:39 ` [PATCH 02/12] tests/qtest/qgraph: add qos_node_create_driver_named() Christian Schoenebeck
2020-09-27 10:39 ` [PATCH 03/12] tests/qtest/qos: add qos_dump_graph() Christian Schoenebeck
2020-09-27 10:39 ` [PATCH 04/12] tests/qtest/qos-test: new QTEST_DUMP_GRAPH environment variable Christian Schoenebeck
2020-09-27 10:39 ` [PATCH 05/12] tests/qtest/qos-test: add QTEST_DUMP_ENV " Christian Schoenebeck
2020-09-27 10:40 ` [PATCH 06/12] tests/qtest/qos-test: add environment variable QTEST_DEBUG Christian Schoenebeck
2020-09-28  8:31   ` Paolo Bonzini
2020-09-28 12:11     ` Christian Schoenebeck
2020-09-27 10:40 ` [PATCH 07/12] test/9pfs: change export tag name to qtest-synth Christian Schoenebeck
2020-09-27 10:40 ` [PATCH 08/12] tests/9pfs: refactor test names and test devices Christian Schoenebeck
2020-09-28  8:36   ` Paolo Bonzini
2020-09-28  8:37   ` Paolo Bonzini
2020-09-28 11:56     ` Christian Schoenebeck
2020-09-28 12:42       ` Paolo Bonzini
2020-09-28 13:35         ` Christian Schoenebeck
2020-09-28 16:38           ` Paolo Bonzini
2020-10-01 11:34             ` Christian Schoenebeck
2020-10-01 11:56               ` Paolo Bonzini
2020-10-01 12:15                 ` Christian Schoenebeck
2020-10-01 14:04                   ` Paolo Bonzini
2020-10-01 15:26                     ` Christian Schoenebeck [this message]
2020-09-27 10:40 ` [PATCH 09/12] tests/9pfs: introduce local tests Christian Schoenebeck
2020-09-27 10:41 ` [PATCH 10/12] tests/9pfs: wipe local 9pfs test directory Christian Schoenebeck
2020-09-27 10:41 ` [PATCH 11/12] tests/9pfs: add virtio_9p_test_path() Christian Schoenebeck
2020-09-27 10:41 ` [PATCH 12/12] tests/9pfs: add local Tmkdir test Christian Schoenebeck

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