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| author |   Michael Holzheu <holzheu@linux.vnet.ibm.com> | 2013-06-06 09:44:28 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-06-26 21:10:10 +0200 |
| commit | 64150adf89df2ed165d6760f414fa6df07d22628 (patch) | |
| tree | faacbf1ffd1daf2aa370d2b4880b8b093ac2966f /arch/s390 | |
| parent | s390/pci: sysfs remove strlen (diff) | |
| download | linux-dev-64150adf89df2ed165d6760f414fa6df07d22628.tar.xz linux-dev-64150adf89df2ed165d6760f414fa6df07d22628.zip | |
s390/cio: Introduce generic synchronous CHSC IOCTL
This patch adds a new ioctl CHSC_START_SYNC that allows to
execute any synchronous CHSC that is provided by user space.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/uapi/asm/chsc.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/s390/include/uapi/asm/chsc.h b/arch/s390/include/uapi/asm/chsc.h index 1c6a7f85a581..6e5307fbeb1e 100644 --- a/arch/s390/include/uapi/asm/chsc.h +++ b/arch/s390/include/uapi/asm/chsc.h @@ -29,6 +29,16 @@ struct chsc_async_area { __u8 data[CHSC_SIZE - sizeof(struct chsc_async_header)]; } __attribute__ ((packed)); +struct chsc_header { + __u16 length; + __u16 code; +} __attribute__ ((packed)); + +struct chsc_sync_area { + struct chsc_header header; + __u8 data[CHSC_SIZE - sizeof(struct chsc_header)]; +} __attribute__ ((packed)); + struct chsc_response_struct { __u16 length; __u16 code; @@ -126,5 +136,6 @@ struct chsc_cpd_info { #define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list) #define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info) #define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal) +#define CHSC_START_SYNC _IOWR(CHSC_IOCTL_MAGIC, 0x89, struct chsc_sync_area) #endif |