Re: [PATCH 03/10] vfio: ccw: new SCH_EVENT event

Cornelia Huck
2018-04-25T08:25:19Z

On Thu, 19 Apr 2018 16:48:06 +0200
Pierre Morel <pmorel@linux.vnet.ibm.com> wrote:

> The Sub channel event callback is threaded using workqueues.
> The work uses the FSM introducing the VFIO_CCW_EVENT_SCH_EVENT
> event.

I don't think this is a good name; after all, all of the events are
events for the subchannel :)

This seems to be more of a "we need to update the schib" event...
VFIO_CCW_EVENT_SCHIB_CHANGED? _SCH_CHANGED? _UPDATE_NEEDED?

Tbh, I'm not quite sure this makes sense for me yet... will continue
reading, but this probably needs a 'why'.

> The update of the SCHIB is now done inside the FSM function.
>
> Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
> ---
> drivers/s390/cio/vfio_ccw_drv.c | 33 +++++++++++++--------------------
> drivers/s390/cio/vfio_ccw_fsm.c | 23 +++++++++++++++++++++++
> drivers/s390/cio/vfio_ccw_private.h | 3 +++
> 3 files changed, 39 insertions(+), 20 deletions(-)