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freebsd-dev/cddl/lib/libdtrace/io.d
Devin Teske 03a3981b89 Updates and enhancements to io.d to aid DTrace scripting 
+ Add dev_type do devinfo_t
+ Add b_cmd to bufinfo_t
+ Add constants for BIO_* and DEVSTAT_TYPE_*
+ Add inline for converting BIO_* int to string
+ Add inline for converting DEVSTAT_TYPE_* int to string
+ Add mask for dev_type & DEVSTAT_TYPE_MASK to string
+ Add mask for dev_type & DEVSTAT_TYPE_IF_MASK to string

Reviewed by:	markj
Sponsored by:	Smule, Inc.
Differential Revision:	https://reviews.freebsd.org/D14396
2018-02-24 17:13:15 +00:00

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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
* Portions Copyright 2018 Devin Teske dteske@freebsd.org
*
* $FreeBSD$
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma D depends_on module kernel
#pragma D depends_on provider io
typedef struct devinfo {
int dev_major; /* major number */
int dev_minor; /* minor number */
int dev_instance; /* instance number */
int dev_type; /* type of device */
string dev_name; /* name of device */
string dev_statname; /* name of device + instance/minor */
string dev_pathname; /* pathname of device */
} devinfo_t;
#pragma D binding "1.0" translator
translator devinfo_t < struct devstat *D > {
dev_major = D->device_number;
dev_minor = D->unit_number;
dev_instance = 0;
dev_type = D->device_type;
dev_name = stringof(D->device_name);
dev_statname = stringof(D->device_name);
dev_pathname = stringof(D->device_name);
};
typedef struct bufinfo {
int b_cmd; /* I/O operation */
int b_flags; /* flags */
long b_bcount; /* number of bytes */
caddr_t b_addr; /* buffer address */
uint64_t b_blkno; /* expanded block # on device */
uint64_t b_lblkno; /* block # on device */
size_t b_resid; /* # of bytes not transferred */
size_t b_bufsize; /* size of allocated buffer */
/* caddr_t b_iodone; I/O completion routine */
int b_error; /* expanded error field */
/* dev_t b_edev; extended device */
} bufinfo_t;
#pragma D binding "1.0" translator
translator bufinfo_t < struct bio *B > {
b_cmd = B->bio_cmd;
b_flags = B->bio_flags;
b_bcount = B->bio_bcount;
b_addr = B->bio_data;
b_blkno = 0;
b_lblkno = 0;
b_resid = B->bio_resid;
b_bufsize = 0; /* XXX gnn */
b_error = B->bio_error;
};
/*
* The following inline constants can be used to examine fi_oflags when using
* the fds[] array or a translated fileinfo_t. Note that the various open
* flags behave as a bit-field *except* for O_RDONLY, O_WRONLY, and O_RDWR.
* To test the open mode, you write code similar to that used with the fcntl(2)
* F_GET[X]FL command, such as: if ((fi_oflags & O_ACCMODE) == O_WRONLY).
*/
inline int O_ACCMODE = 0x0003;
#pragma D binding "1.1" O_ACCMODE
inline int O_RDONLY = 0x0000;
#pragma D binding "1.1" O_RDONLY
inline int O_WRONLY = 0x0001;
#pragma D binding "1.1" O_WRONLY
inline int O_RDWR = 0x0002;
#pragma D binding "1.1" O_RDWR
inline int O_APPEND = 0x0008;
#pragma D binding "1.1" O_APPEND
inline int O_CREAT = 0x0200;
#pragma D binding "1.1" O_CREAT
inline int O_EXCL = 0x0800;
#pragma D binding "1.1" O_EXCL
inline int O_NOCTTY = 0x8000;
#pragma D binding "1.1" O_NOCTTY
inline int O_NONBLOCK = 0x0004;
#pragma D binding "1.1" O_NONBLOCK
inline int O_NDELAY = 0x0004;
#pragma D binding "1.1" O_NDELAY
inline int O_SYNC = 0x0080;
#pragma D binding "1.1" O_SYNC
inline int O_TRUNC = 0x0400;
#pragma D binding "1.1" O_TRUNC
/*
* The following inline constants can be used to examine bio_cmd of struct bio
* or a translated bufinfo_t.
*/
inline int BIO_READ = 0x01;
#pragma D binding "1.13" BIO_READ
inline int BIO_WRITE = 0x02;
#pragma D binding "1.13" BIO_WRITE
inline int BIO_DELETE = 0x03;
#pragma D binding "1.13" BIO_DELETE
inline int BIO_GETATTR = 0x04;
#pragma D binding "1.13" BIO_GETATTR
inline int BIO_FLUSH = 0x05;
#pragma D binding "1.13" BIO_FLUSH
inline int BIO_CMD0 = 0x06;
#pragma D binding "1.13" BIO_CMD0
inline int BIO_CMD1 = 0x07;
#pragma D binding "1.13" BIO_CMD1
inline int BIO_CMD2 = 0x08;
#pragma D binding "1.13" BIO_CMD2
inline int BIO_ZONE = 0x09;
#pragma D binding "1.13" BIO_ZONE
/*
* The following inline constants can be used to examine bio_flags of struct
* bio or a translated bufinfo_t.
*/
inline int BIO_ERROR = 0x01;
#pragma D binding "1.13" BIO_ERROR
inline int BIO_DONE = 0x02;
#pragma D binding "1.13" BIO_DONE
inline int BIO_ONQUEUE = 0x04;
#pragma D binding "1.13" BIO_ONQUEUE
inline int BIO_ORDERED = 0x08;
#pragma D binding "1.13" BIO_ORDERED
inline int BIO_UNMAPPED = 0x10;
#pragma D binding "1.13" BIO_UNMAPPED
inline int BIO_TRANSIENT_MAPPING = 0x20;
#pragma D binding "1.13" BIO_TRANSIENT_MAPPING
inline int BIO_VLIST = 0x40;
#pragma D binding "1.13" BIO_VLIST
/*
* The following inline constants can be used to examine device_type of struct
* devstat or a translated devinfo_t.
*/
inline int DEVSTAT_TYPE_DIRECT = 0x000;
#pragma D binding "1.13" DEVSTAT_TYPE_DIRECT
inline int DEVSTAT_TYPE_SEQUENTIAL = 0x001;
#pragma D binding "1.13" DEVSTAT_TYPE_SEQUENTIAL
inline int DEVSTAT_TYPE_PRINTER = 0x002;
#pragma D binding "1.13" DEVSTAT_TYPE_PRINTER
inline int DEVSTAT_TYPE_PROCESSOR = 0x003;
#pragma D binding "1.13" DEVSTAT_TYPE_PROCESSOR
inline int DEVSTAT_TYPE_WORM = 0x004;
#pragma D binding "1.13" DEVSTAT_TYPE_WORM
inline int DEVSTAT_TYPE_CDROM = 0x005;
#pragma D binding "1.13" DEVSTAT_TYPE_CDROM
inline int DEVSTAT_TYPE_SCANNER = 0x006;
#pragma D binding "1.13" DEVSTAT_TYPE_SCANNER
inline int DEVSTAT_TYPE_OPTICAL = 0x007;
#pragma D binding "1.13" DEVSTAT_TYPE_OPTICAL
inline int DEVSTAT_TYPE_CHANGER = 0x008;
#pragma D binding "1.13" DEVSTAT_TYPE_CHANGER
inline int DEVSTAT_TYPE_COMM = 0x009;
#pragma D binding "1.13" DEVSTAT_TYPE_COMM
inline int DEVSTAT_TYPE_ASC0 = 0x00a;
#pragma D binding "1.13" DEVSTAT_TYPE_ASC0
inline int DEVSTAT_TYPE_ASC1 = 0x00b;
#pragma D binding "1.13" DEVSTAT_TYPE_ASC1
inline int DEVSTAT_TYPE_STORARRAY = 0x00c;
#pragma D binding "1.13" DEVSTAT_TYPE_STORARRAY
inline int DEVSTAT_TYPE_ENCLOSURE = 0x00d;
#pragma D binding "1.13" DEVSTAT_TYPE_ENCLOSURE
inline int DEVSTAT_TYPE_FLOPPY = 0x00e;
#pragma D binding "1.13" DEVSTAT_TYPE_FLOPPY
inline int DEVSTAT_TYPE_MASK = 0x00f;
#pragma D binding "1.13" DEVSTAT_TYPE_MASK
inline int DEVSTAT_TYPE_IF_SCSI = 0x010;
#pragma D binding "1.13" DEVSTAT_TYPE_IF_SCSI
inline int DEVSTAT_TYPE_IF_IDE = 0x020;
#pragma D binding "1.13" DEVSTAT_TYPE_IF_IDE
inline int DEVSTAT_TYPE_IF_OTHER = 0x030;
#pragma D binding "1.13" DEVSTAT_TYPE_IF_OTHER
inline int DEVSTAT_TYPE_IF_MASK = 0x0f0;
#pragma D binding "1.13" DEVSTAT_TYPE_IF_MASK
inline int DEVSTAT_TYPE_PASS = 0x100;
#pragma D binding "1.13" DEVSTAT_TYPE_PASS
#pragma D binding "1.13" device_type_string
inline string device_type_string[int type] =
type == DEVSTAT_TYPE_DIRECT ? "DIRECT" :
type == DEVSTAT_TYPE_SEQUENTIAL ? "SEQUENTIAL" :
type == DEVSTAT_TYPE_PRINTER ? "PRINTER" :
type == DEVSTAT_TYPE_PROCESSOR ? "PROCESSOR" :
type == DEVSTAT_TYPE_WORM ? "WORM" :
type == DEVSTAT_TYPE_CDROM ? "CDROM" :
type == DEVSTAT_TYPE_SCANNER ? "SCANNER" :
type == DEVSTAT_TYPE_OPTICAL ? "OPTICAL" :
type == DEVSTAT_TYPE_CHANGER ? "CHANGER" :
type == DEVSTAT_TYPE_COMM ? "COMM" :
type == DEVSTAT_TYPE_ASC0 ? "ASC0" :
type == DEVSTAT_TYPE_ASC1 ? "ASC1" :
type == DEVSTAT_TYPE_STORARRAY ? "STORARRAY" :
type == DEVSTAT_TYPE_ENCLOSURE ? "ENCLOSURE" :
type == DEVSTAT_TYPE_FLOPPY ? "FLOPPY" :
strjoin("UNKNOWN(", strjoin(lltostr(type), ")"));
#pragma D binding "1.13" device_type
inline string device_type[int type] =
device_type_string[type & DEVSTAT_TYPE_MASK];
#pragma D binding "1.13" device_if_string
inline string device_if_string[int type] =
type == 0 ? "ACCESS" :
type == DEVSTAT_TYPE_IF_SCSI ? "SCSI" :
type == DEVSTAT_TYPE_IF_IDE ? "IDE" :
type == DEVSTAT_TYPE_IF_OTHER ? "OTHER" :
strjoin("UNKNOWN(", strjoin(lltostr(type), ")"));
#pragma D binding "1.13" device_if
inline string device_if[int type] =
device_if_string[type & DEVSTAT_TYPE_IF_MASK];
#pragma D binding "1.13" bio_cmd_string
inline string bio_cmd_string[int cmd] =
cmd == BIO_READ ? "READ" :
cmd == BIO_WRITE ? "WRITE" :
cmd == BIO_DELETE ? "DELETE" :
cmd == BIO_GETATTR ? "GETATTR" :
cmd == BIO_FLUSH ? "FLUSH" :
cmd == BIO_CMD0 ? "CMD0" :
cmd == BIO_CMD1 ? "CMD1" :
cmd == BIO_CMD2 ? "CMD2" :
cmd == BIO_ZONE ? "ZONE" :
strjoin("UNKNOWN(", strjoin(lltostr(cmd), ")"));
#pragma D binding "1.13" bio_flag_string
inline string bio_flag_string[int flag] =
flag == BIO_ERROR ? "ERROR" :
flag == BIO_DONE ? "DONE" :
flag == BIO_ONQUEUE ? "ONQUEUE" :
flag == BIO_ORDERED ? "ORDERED" :
flag == BIO_UNMAPPED ? "UNMAPPED" :
flag == BIO_TRANSIENT_MAPPING ? "TRANSIENT_MAPPING" :
flag == BIO_VLIST ? "VLIST" :
"";
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