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tprof_ioctl.h revision 1.4 
      1 /*	$NetBSD: tprof_ioctl.h,v 1.4 2018/07/13 07:56:29 maxv Exp $	*/
      2 
      3 /*-
      4  * Copyright (c)2008,2010 YAMAMOTO Takashi,
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _DEV_TPROF_TPROF_IOCTL_H_
     30 #define _DEV_TPROF_TPROF_IOCTL_H_
     31 
     32 /*
     33  * definitions for userland consumer
     34  */
     35 
     36 #include <sys/ioccom.h>
     37 
     38 #include <dev/tprof/tprof_types.h>
     39 
     40 #define	TPROF_VERSION	4	/* kernel-userland ABI version */
     41 
     42 struct tprof_info {
     43 	uint32_t ti_version;
     44 	uint32_t ti_ident;
     45 };
     46 #define	TPROF_IOC_GETINFO	_IOR('T', 1, struct tprof_info)
     47 
     48 #define	TPROF_IOC_START		_IOW('T', 2, tprof_param_t)
     49 
     50 #define	TPROF_IOC_STOP		_IO('T', 3)
     51 
     52 struct tprof_stat {
     53 	uint64_t ts_sample;	/* samples successfully recorded */
     54 	uint64_t ts_overflow;	/* samples dropped due to overflow */
     55 	uint64_t ts_buf;	/* buffers successfully queued for read(2) */
     56 	uint64_t ts_emptybuf;	/* empty buffers dropped */
     57 	uint64_t ts_dropbuf;	/* buffers dropped due to the global limit */
     58 	uint64_t ts_dropbuf_sample; /* samples dropped with ts_dropbuf */
     59 };
     60 #define	TPROF_IOC_GETSTAT	_IOR('T', 4, struct tprof_stat)
     61 
     62 #endif /* _DEV_TPROF_TPROF_IOCTL_H_ */
     63