| devstat.9 (84306) | devstat.9 (89124) |
|---|---|
| 1.\" 2.\" Copyright (c) 1998, 1999 Kenneth D. Merry. 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 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.\" | 1.\" 2.\" Copyright (c) 1998, 1999 Kenneth D. Merry. 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 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.\" $FreeBSD: head/share/man/man9/devstat.9 84306 2001-10-01 16:09:29Z ru $ | 28.\" $FreeBSD: head/share/man/man9/devstat.9 89124 2002-01-09 11:43:48Z mpp $ |
| 29.\" 30.Dd May 22, 1998 31.Dt DEVSTAT 9 32.Os 33.Sh NAME 34.Nm devstat , 35.Nm devstat_add_entry , 36.Nm devstat_end_transaction , --- 61 unchanged lines hidden (view full) --- 98.Nm 99list, it should be set to 0. 100.It flags 101Flags indicating operations supported or not supported by the device. See 102below for details. 103.It device_type 104The device type. This is broken into three sections: base device type 105(e.g. direct access, CDROM, sequential access), interface type (IDE, SCSI | 29.\" 30.Dd May 22, 1998 31.Dt DEVSTAT 9 32.Os 33.Sh NAME 34.Nm devstat , 35.Nm devstat_add_entry , 36.Nm devstat_end_transaction , --- 61 unchanged lines hidden (view full) --- 98.Nm 99list, it should be set to 0. 100.It flags 101Flags indicating operations supported or not supported by the device. See 102below for details. 103.It device_type 104The device type. This is broken into three sections: base device type 105(e.g. direct access, CDROM, sequential access), interface type (IDE, SCSI |
| 106or other) and a passthrough flag to indicate pasthrough devices. See below | 106or other) and a pass-through flag to indicate pas-through devices. See below |
| 107for a complete list of types. 108.It priority 109The device priority. The priority is used to determine how devices are 110sorted within 111.Nm devstat Ns 's 112list of devices. Devices are sorted first by priority (highest to lowest), 113and then by attach order. See below for a complete list of available 114priorities. --- 126 unchanged lines hidden (view full) --- 241to calculate the device busy time. 242.It flags 243These flags indicate which statistics measurements are supported by a 244particular device. These flags are primarily intended to serve as an aid 245to userland programs that decipher the statistics. 246.It device_type 247This is the device type. It consists of three parts: the device type 248(e.g. direct access, CDROM, sequential access, etc.), the interface (IDE, | 107for a complete list of types. 108.It priority 109The device priority. The priority is used to determine how devices are 110sorted within 111.Nm devstat Ns 's 112list of devices. Devices are sorted first by priority (highest to lowest), 113and then by attach order. See below for a complete list of available 114priorities. --- 126 unchanged lines hidden (view full) --- 241to calculate the device busy time. 242.It flags 243These flags indicate which statistics measurements are supported by a 244particular device. These flags are primarily intended to serve as an aid 245to userland programs that decipher the statistics. 246.It device_type 247This is the device type. It consists of three parts: the device type 248(e.g. direct access, CDROM, sequential access, etc.), the interface (IDE, |
| 249SCSI or other) and whether or not the device in question is a passthrough | 249SCSI or other) and whether or not the device in question is a pass-through |
| 250driver. See below for a complete list of device types. 251.It priority 252This is the priority. This is the first parameter used to determine where 253to insert a device in the 254.Nm 255list. The second parameter is attach order. See below for a list of 256available priorities. 257.El 258.Pp | 250driver. See below for a complete list of device types. 251.It priority 252This is the priority. This is the first parameter used to determine where 253to insert a device in the 254.Nm 255list. The second parameter is attach order. See below for a list of 256available priorities. 257.El 258.Pp |
| 259Each device is given a device type. Passthrough devices have the same | 259Each device is given a device type. Pass-through devices have the same |
| 260underlying device type and interface as the device they provide an | 260underlying device type and interface as the device they provide an |
| 261interface for, but they also have the passthrough flag set. The base | 261interface for, but they also have the pass-through flag set. The base |
| 262device types are identical to the 263.Tn SCSI 264device type numbers, so with 265.Tn SCSI 266peripherals, the device type returned from an inquiry is usually ORed with 267the 268.Tn SCSI | 262device types are identical to the 263.Tn SCSI 264device type numbers, so with 265.Tn SCSI 266peripherals, the device type returned from an inquiry is usually ORed with 267the 268.Tn SCSI |
| 269interface type and the passthrough flag if appropriate. The device type | 269interface type and the pass-through flag if appropriate. The device type |
| 270flags are as follows: 271.Bd -literal -offset indent 272typedef enum { 273 DEVSTAT_TYPE_DIRECT = 0x000, 274 DEVSTAT_TYPE_SEQUENTIAL = 0x001, 275 DEVSTAT_TYPE_PRINTER = 0x002, 276 DEVSTAT_TYPE_PROCESSOR = 0x003, 277 DEVSTAT_TYPE_WORM = 0x004, --- 138 unchanged lines hidden --- | 270flags are as follows: 271.Bd -literal -offset indent 272typedef enum { 273 DEVSTAT_TYPE_DIRECT = 0x000, 274 DEVSTAT_TYPE_SEQUENTIAL = 0x001, 275 DEVSTAT_TYPE_PRINTER = 0x002, 276 DEVSTAT_TYPE_PROCESSOR = 0x003, 277 DEVSTAT_TYPE_WORM = 0x004, --- 138 unchanged lines hidden --- |