On 15/06/2020 11.31, Pierre Morel wrote:
Provide some definitions and library routines that can be used by tests targeting the channel subsystem. Signed-off-by: Pierre Morel <pmorel@xxxxxxxxxxxxx> --- lib/s390x/css.h | 256 +++++++++++++++++++++++++++++++++++++++++++ lib/s390x/css_dump.c | 153 ++++++++++++++++++++++++++ s390x/Makefile | 1 + 3 files changed, 410 insertions(+) create mode 100644 lib/s390x/css.h create mode 100644 lib/s390x/css_dump.c
[...]
diff --git a/lib/s390x/css_dump.c b/lib/s390x/css_dump.c new file mode 100644 index 0000000..0c2b64e --- /dev/null +++ b/lib/s390x/css_dump.c @@ -0,0 +1,153 @@ +/* + * Channel subsystem structures dumping + * + * Copyright (c) 2020 IBM Corp. + * + * Authors: + * Pierre Morel <pmorel@xxxxxxxxxxxxx> + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2. + * + * Description: + * Provides the dumping functions for various structures used by subchannels: + * - ORB : Operation request block, describes the I/O operation and points to + * a CCW chain + * - CCW : Channel Command Word, describes the command, data and flow control + * - IRB : Interuption response Block, describes the result of an operation; + * holds a SCSW and model-dependent data. + * - SCHIB: SubCHannel Information Block composed of: + * - SCSW: SubChannel Status Word, status of the channel. + * - PMCW: Path Management Control Word + * You need the QEMU ccw-pong device in QEMU to answer the I/O transfers. + */ + +#include <libcflat.h> +#include <unistd.h>
Please don't use unistd.h in kvm-unit-tests - this header is not usable in cross-compilation environments:
https://travis-ci.com/github/huth/kvm-unit-tests/jobs/353089278#L536 Thanks, Thomas
