diff options
Diffstat (limited to 'include/asm-s390/cmb.h')
-rw-r--r-- | include/asm-s390/cmb.h | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/include/asm-s390/cmb.h b/include/asm-s390/cmb.h deleted file mode 100644 index 50196857d27a..000000000000 --- a/include/asm-s390/cmb.h +++ /dev/null @@ -1,58 +0,0 @@ -#ifndef S390_CMB_H -#define S390_CMB_H -/** - * struct cmbdata - channel measurement block data for user space - * @size: size of the stored data - * @elapsed_time: time since last sampling - * @ssch_rsch_count: number of ssch and rsch - * @sample_count: number of samples - * @device_connect_time: time of device connect - * @function_pending_time: time of function pending - * @device_disconnect_time: time of device disconnect - * @control_unit_queuing_time: time of control unit queuing - * @device_active_only_time: time of device active only - * @device_busy_time: time of device busy (ext. format) - * @initial_command_response_time: initial command response time (ext. format) - * - * All values are stored as 64 bit for simplicity, especially - * in 32 bit emulation mode. All time values are normalized to - * nanoseconds. - * Currently, two formats are known, which differ by the size of - * this structure, i.e. the last two members are only set when - * the extended channel measurement facility (first shipped in - * z990 machines) is activated. - * Potentially, more fields could be added, which would result in a - * new ioctl number. - */ -struct cmbdata { - __u64 size; - __u64 elapsed_time; - /* basic and exended format: */ - __u64 ssch_rsch_count; - __u64 sample_count; - __u64 device_connect_time; - __u64 function_pending_time; - __u64 device_disconnect_time; - __u64 control_unit_queuing_time; - __u64 device_active_only_time; - /* extended format only: */ - __u64 device_busy_time; - __u64 initial_command_response_time; -}; - -/* enable channel measurement */ -#define BIODASDCMFENABLE _IO(DASD_IOCTL_LETTER, 32) -/* enable channel measurement */ -#define BIODASDCMFDISABLE _IO(DASD_IOCTL_LETTER, 33) -/* read channel measurement data */ -#define BIODASDREADALLCMB _IOWR(DASD_IOCTL_LETTER, 33, struct cmbdata) - -#ifdef __KERNEL__ -struct ccw_device; -extern int enable_cmf(struct ccw_device *cdev); -extern int disable_cmf(struct ccw_device *cdev); -extern u64 cmf_read(struct ccw_device *cdev, int index); -extern int cmf_readall(struct ccw_device *cdev, struct cmbdata *data); - -#endif /* __KERNEL__ */ -#endif /* S390_CMB_H */ |