On Mon, 11 Mar 2019 11:21:28 -0400
"Jason J. Herne" <jjhe...@linux.ibm.com> wrote:
> Introduce a library function for executing format-0 and format-1
> channel programs and waiting for their completion before continuing
> execution.
>
> Add cu_type() to channel io library. This will be used to query control
> unit type which is used to determine if we are booting a virtio device or a
> real dasd device.
>
> Signed-off-by: Jason J. Herne <jjhe...@linux.ibm.com>
> ---
> pc-bios/s390-ccw/cio.c | 144
> ++++++++++++++++++++++++++++++++++++++++++++
> pc-bios/s390-ccw/cio.h | 130 ++++++++++++++++++++++++++++++++++++++-
> pc-bios/s390-ccw/s390-ccw.h | 1 +
> pc-bios/s390-ccw/start.S | 29 +++++++++
> 4 files changed, 301 insertions(+), 3 deletions(-)
(...)
> + rc = ssch(schid, &orb);
> + if (rc == 1 || rc == 2) {
> + /* Subchannel status pending or busy. Eat status and ask for retry.
> */
> + tsch(schid, irb);
Not really needed for cc 2; but should not hurt, either.
> + return -1;
> + }
(...)
Reviewed-by: Cornelia Huck <coh...@redhat.com>
