cmb.h

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#ifndef _UAPIS390_CMB_H
#define _UAPIS390_CMB_H

#include <linux/types.h>

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)

#endif /* _UAPIS390_CMB_H */