Re: [Qemu-devel] [PATCH v4 2/6] vfio-ccw: rework ssch state handling

2019-03-11 Thread Cornelia Huck
On Fri, 8 Mar 2019 17:18:22 -0500 Eric Farman wrote: > On 03/01/2019 04:38 AM, Cornelia Huck wrote: > > The flow for processing ssch requests can be improved by splitting > > the BUSY state: > > > > - CP_PROCESSING: We reject any user space requests while we are in > >the process of translat

Re: [Qemu-devel] [PATCH v4 2/6] vfio-ccw: rework ssch state handling

2019-03-08 Thread Eric Farman
On 03/01/2019 04:38 AM, Cornelia Huck wrote: The flow for processing ssch requests can be improved by splitting the BUSY state: - CP_PROCESSING: We reject any user space requests while we are in the process of translating a channel program and submitting it to the hardware. Use -EAGAIN

[Qemu-devel] [PATCH v4 2/6] vfio-ccw: rework ssch state handling

2019-03-01 Thread Cornelia Huck
The flow for processing ssch requests can be improved by splitting the BUSY state: - CP_PROCESSING: We reject any user space requests while we are in the process of translating a channel program and submitting it to the hardware. Use -EAGAIN to signal user space that it should retry the requ