Hi Jens, please apply the following patchset to for-next. It adds basic support for a harwdare based copy relation to the DASD device driver. regards, Stefan Stefan Haberland (7): s390/dasd: put block allocation in separate function s390/dasd: add query PPRC function s390/dasd: add copy pair setup s390/dasd: add copy pair swap capability s390/dasd: add ioctl to perform a swap of the drivers copy pair s390/dasd: suppress generic error messages for PPRC secondary devices s390/dasd: add device ping attribute arch/s390/include/asm/scsw.h | 5 + arch/s390/include/uapi/asm/dasd.h | 14 + drivers/s390/block/dasd.c | 3 +- drivers/s390/block/dasd_3990_erp.c | 5 + drivers/s390/block/dasd_devmap.c | 602 ++++++++++++++++++++++++++++- drivers/s390/block/dasd_eckd.c | 292 ++++++++++++-- drivers/s390/block/dasd_eckd.h | 9 +- drivers/s390/block/dasd_int.h | 73 ++++ drivers/s390/block/dasd_ioctl.c | 53 +++ 9 files changed, 1024 insertions(+), 32 deletions(-) -- 2.34.1