On 2020-06-24 14:26, Thomas Huth wrote:
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
Yes, no problem, it does not belong here anyway.
Regards,
Pierre
--
Pierre Morel
IBM Lab Boeblingen
