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From: Jason Gunthorpe <jgg@nvidia.com>
To: Eric Farman <farman@linux.ibm.com>
Cc: Matthew Rosato <mjrosato@linux.ibm.com>,
	Alex Williamson <alex.williamson@redhat.com>,
	Liu Yi L <yi.l.liu@intel.com>, Halil Pasic <pasic@linux.ibm.com>,
	kvm@vger.kernel.org, linux-s390@vger.kernel.org
Subject: Re: [PATCH v1 09/18] vfio/ccw: Create an OPEN FSM Event
Date: Thu, 2 Jun 2022 16:08:40 -0300	[thread overview]
Message-ID: <20220602190840.GF3936592@nvidia.com> (raw)
In-Reply-To: <20220602171948.2790690-10-farman@linux.ibm.com>

On Thu, Jun 02, 2022 at 07:19:39PM +0200, Eric Farman wrote:
> Move the process of enabling a subchannel for use by vfio-ccw
> into the FSM, such that it can manage the sequence of lifecycle
> events for the device.
> 
> That is, if the FSM state is NOT_OPER(erational), then do the work
> that would enable the subchannel and move the FSM to STANDBY state.
> An attempt to perform this event again from any of the other operating
> states (IDLE, CP_PROCESSING, CP_PENDING) will convert the device back
> to NOT_OPER so the configuration process can be started again.
> 
> Signed-off-by: Eric Farman <farman@linux.ibm.com>
> ---
>  drivers/s390/cio/vfio_ccw_drv.c     |  9 ++-------
>  drivers/s390/cio/vfio_ccw_fsm.c     | 21 +++++++++++++++++++++
>  drivers/s390/cio/vfio_ccw_private.h |  1 +
>  3 files changed, 24 insertions(+), 7 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason

  reply	other threads:[~2022-06-02 19:08 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-02 17:19 [PATCH v1 00/18] VFIO ccw/mdev rework Eric Farman
2022-06-02 17:19 ` [PATCH v1 01/18] vfio/ccw: Remove UUID from s390 debug log Eric Farman
2022-06-02 18:55   ` Jason Gunthorpe
2022-06-02 19:51   ` Matthew Rosato
2022-06-03 19:03     ` Eric Farman
2022-06-06 20:45       ` Matthew Rosato
2022-06-02 17:19 ` [PATCH v1 02/18] vfio/ccw: Fix FSM state if mdev probe fails Eric Farman
2022-06-02 18:58   ` Jason Gunthorpe
2022-06-03 13:21   ` Matthew Rosato
2022-06-03 19:12     ` Eric Farman
2022-06-06 20:44       ` Matthew Rosato
2022-06-02 17:19 ` [PATCH v1 03/18] vfio/ccw: Ensure mdev->dev is cleared on mdev remove Eric Farman
2022-06-03 13:25   ` Matthew Rosato
2022-06-03 13:37     ` Jason Gunthorpe
2022-06-03 15:20       ` Tony Krowiak
2022-06-02 17:19 ` [PATCH v1 04/18] vfio/ccw: Do not change FSM state in subchannel event Eric Farman
2022-06-02 17:19 ` [PATCH v1 05/18] vfio/ccw: Remove private->mdev Eric Farman
2022-06-02 19:02   ` Jason Gunthorpe
2022-06-02 19:13     ` Eric Farman
2022-06-02 17:19 ` [PATCH v1 06/18] vfio/ccw: Pass enum to FSM event jumptable Eric Farman
2022-06-02 19:02   ` Jason Gunthorpe
2022-06-02 19:22   ` Matthew Rosato
2022-06-02 17:19 ` [PATCH v1 07/18] vfio/ccw: Flatten MDEV device (un)register Eric Farman
2022-06-02 19:03   ` Jason Gunthorpe
2022-06-02 19:14   ` Matthew Rosato
2022-06-03 20:38     ` Eric Farman
2022-06-02 17:19 ` [PATCH v1 08/18] vfio/ccw: Check that private pointer is not NULL Eric Farman
2022-06-02 19:04   ` Matthew Rosato
2022-06-02 19:05   ` Jason Gunthorpe
2022-06-02 17:19 ` [PATCH v1 09/18] vfio/ccw: Create an OPEN FSM Event Eric Farman
2022-06-02 19:08   ` Jason Gunthorpe [this message]
2022-06-02 17:19 ` [PATCH v1 10/18] vfio/ccw: Create a CLOSE FSM event Eric Farman
2022-06-02 19:10   ` Jason Gunthorpe
2022-06-02 17:19 ` [PATCH v1 11/18] vfio/ccw: Refactor vfio_ccw_mdev_reset Eric Farman
2022-06-02 19:11   ` Jason Gunthorpe
2022-06-02 17:19 ` [PATCH v1 12/18] vfio/ccw: Move FSM open/close to MDEV open/close Eric Farman
2022-06-02 19:14   ` Jason Gunthorpe
2022-06-02 17:19 ` [PATCH v1 13/18] vfio/mdev: Consolidate all the device_api sysfs into the core code Eric Farman
2022-06-03  6:36   ` Christoph Hellwig
2022-06-03 14:55   ` Tony Krowiak
2022-06-06 19:43   ` Kirti Wankhede
2022-06-10  7:22   ` Tian, Kevin
2022-06-02 17:19 ` [PATCH v1 14/18] vfio/mdev: Add mdev available instance checking to the core Eric Farman
2022-06-03 15:02   ` Tony Krowiak
2022-06-06 20:02   ` Kirti Wankhede
2022-06-06 20:23     ` Eric Farman
2022-06-06 20:37       ` Matthew Rosato
2022-06-10  7:43       ` Tian, Kevin
2022-06-13  6:46         ` Christoph Hellwig
2022-06-13 14:08           ` Eric Farman
2022-06-02 17:19 ` [PATCH v1 15/18] vfio/ccw: Manage private with mdev Eric Farman
2022-06-02 17:19 ` [PATCH v1 16/18] vfio/ccw: Create a get_private routine Eric Farman
2022-06-02 19:17   ` Jason Gunthorpe
2022-06-02 17:19 ` [PATCH v1 17/18] vfio: Export vfio_device_try_get() Eric Farman
2022-06-03  7:46   ` Cornelia Huck
2022-06-02 17:19 ` [PATCH v1 18/18] vfio/ccw: Manage ccw/mdev reference counts Eric Farman
2022-06-02 19:20   ` Jason Gunthorpe
2022-06-02 19:29 ` [PATCH v1 00/18] VFIO ccw/mdev rework Jason Gunthorpe
2022-06-10  4:11 ` Yi Liu

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