This patch series presents a device to test the channel subsystem. Currently the pong device does the following: - on PONG_WRITE requests: read the CCW buffer, expect a string with an integer in the buffer. store the integer in a variable initialy initialized to zero.
- on PONG_READ requests: Store the value of the variable + 1 as a string in a buffer send back the buffer - defines a Control Unit property of type CCW_PONG_CU_TYPE for the guest to recognize the PONG device when using a SENSE_ID command. Pierre Morel (1): s390x: css: pong, channel subsystem test device default-configs/s390x-softmmu.mak | 1 + hw/s390x/Kconfig | 3 + hw/s390x/Makefile.objs | 1 + hw/s390x/ccw-pong.c | 134 ++++++++++++++++++++++++++++++ include/hw/s390x/pong.h | 48 +++++++++++ 5 files changed, 187 insertions(+) create mode 100644 hw/s390x/ccw-pong.c create mode 100644 include/hw/s390x/pong.h -- 2.25.1 Changelog: from v2 to v3 - rebase to devel - use device_class_set_props() from v1 to v2 - use ccw_dstream_xxx_buf (Connie) - adding a cu_type property - testing the ccw.count - conditional compiling for TEST_DEVICES (Connie, Thomas) - suppress the device categorie (Connie ?) - adding write callback and some funny protocol
