Re: [PATCH v6 0/3] vfio-ccw: Fix interrupt handling for HALT/CLEAR

Cornelia Huck
2021-05-18T09:50:25Z

On Tue, 11 May 2021 21:56:28 +0200
Eric Farman <farman@linux.ibm.com> wrote:

> Hi Conny, Matt, Halil,
>
> Here's one (last?) update to my proposal for handling the collision
> between interrupts for START SUBCHANNEL and HALT/CLEAR SUBCHANNEL.
>
> Only change here is to include Conny's suggestions on patch 3.
>
> Thanks,
> Eric
>
> Changelog:
> v5->v6:
> - Add a block comment and rename variable in patch 3 [CH]
> - Drop RFC tag [EF]
>
> v4->v5:
> - Applied Conny's r-b to patches 1 and 3
> - Dropped patch 2 and 4
> - Use a "finished" flag in the interrupt completion path
>
> Previous versions:
> v5: https://lore.kernel.org/kvm/20210510205646.1845844-1-farman@linux.ibm.com/
> v4: https://lore.kernel.org/kvm/20210413182410.1396170-1-farman@linux.ibm.com/
> v3: https://lore.kernel.org/kvm/20200616195053.99253-1-farman@linux.ibm.com/
> v2: https://lore.kernel.org/kvm/20200513142934.28788-1-farman@linux.ibm.com/
> v1: https://lore.kernel.org/kvm/20200124145455.51181-1-farman@linux.ibm.com/
>
> Eric Farman (3):
> vfio-ccw: Check initialized flag in cp_init()
> vfio-ccw: Reset FSM state to IDLE inside FSM
> vfio-ccw: Serialize FSM IDLE state with I/O completion
>
> drivers/s390/cio/vfio_ccw_cp.c | 4 ++++
> drivers/s390/cio/vfio_ccw_drv.c | 12 ++++++++++--
> drivers/s390/cio/vfio_ccw_fsm.c | 1 +
> drivers/s390/cio/vfio_ccw_ops.c | 2 --
> 4 files changed, 15 insertions(+), 4 deletions(-)
>

Thanks, applied.