117596f06STom Rhodes.\" $FreeBSD$ 217596f06STom Rhodes.\" Written by Tom Rhodes 317596f06STom Rhodes.\" This file is in the public domain. 417596f06STom Rhodes.\" 517596f06STom Rhodes.Dd December 29, 2002 61b3f128dSSimon L. B. Nielsen.Dd August 3, 2004 717596f06STom Rhodes.Dt CISS 4 817596f06STom Rhodes.Os 917596f06STom Rhodes.Sh NAME 1017596f06STom Rhodes.Nm ciss 11ace5be68SRuslan Ermilov.Nd Common Interface for SCSI-3 Support driver 1217596f06STom Rhodes.Sh SYNOPSIS 13ace5be68SRuslan Ermilov.Cd "device scbus" 14ace5be68SRuslan Ermilov.Cd "device ciss" 1517596f06STom Rhodes.Sh DESCRIPTION 1617596f06STom RhodesThe 1717596f06STom Rhodes.Nm 1817596f06STom Rhodesdriver claims to provide a common interface between generic SCSI 1917596f06STom Rhodestransports and intelligent host adapters. 2017596f06STom Rhodes.Pp 2117596f06STom RhodesThe 2217596f06STom Rhodes.Nm 2317596f06STom Rhodesdriver supports 2417596f06STom Rhodes.Em CISS 2517596f06STom Rhodesas defined in the document entitled 26ace5be68SRuslan Ermilov.%T "CISS Command Interface for SCSI-3 Support Open Specification, Version 1.04, Valence Number 1" , 27ace5be68SRuslan Ermilovdated 2000/11/27, produced by Compaq Computer Corporation. 2817596f06STom Rhodes.Pp 2917596f06STom RhodesWe provide a shim layer between the 3017596f06STom Rhodes.Nm 31ace5be68SRuslan Ermilovinterface and 32ace5be68SRuslan Ermilov.Xr CAM 4 , 3317596f06STom Rhodesoffloading most of the queueing and being-a-disk chores onto CAM. 3417596f06STom RhodesEntry to the driver is via the PCI bus attachment 35ace5be68SRuslan Ermilov.Fn ciss_probe , 36ace5be68SRuslan Ermilov.Fn ciss_attach , 375203edcdSRuslan Ermilovetc.\& and via the CAM interface 38ace5be68SRuslan Ermilov.Fn ciss_cam_action , 3917596f06STom Rhodesand 40ace5be68SRuslan Ermilov.Fn ciss_cam_poll . 4117596f06STom RhodesThe Compaq 4217596f06STom Rhodes.Nm 4317596f06STom Rhodesadapters require faked responses to get reasonable 4417596f06STom Rhodesbehavior out of them. 4517596f06STom RhodesIn addition, the 4617596f06STom Rhodes.Nm 47ace5be68SRuslan Ermilovcommand set is by no means adequate to support the functionality 48ace5be68SRuslan Ermilovof a RAID controller, 4917596f06STom Rhodesand thus the supported Compaq adapters utilize portions of the 5017596f06STom Rhodescontrol protocol from earlier Compaq adapter families. 5117596f06STom Rhodes.Pp 5217596f06STom RhodesCurrently 5317596f06STom Rhodes.Nm 5417596f06STom Rhodesonly supports the 5517596f06STom Rhodes.Dq simple 5617596f06STom Rhodestransport layer over PCI. 5717596f06STom RhodesThis interface (ab)uses the I2O register set (specifically the post 5817596f06STom Rhodesqueues) to exchange commands with the adapter. 59ae5c97aaSTom RhodesOther interfaces are available, but we are not supposed to know about them, 6017596f06STom Rhodesand it is dubious whether they would provide major performance improvements 6117596f06STom Rhodesexcept under extreme load. 62ace5be68SRuslan Ermilov.Pp 63ace5be68SRuslan ErmilovNon-disk devices (such as internal DATs and devices 64a315d43aSScott Longattached to the external SCSI bus) are supported as normal CAM devices 65a315d43aSScott Longprovided that they are exported by the controller firmware and are not 665203edcdSRuslan Ermilovmarked as being masked. 675203edcdSRuslan ErmilovMasked devices can be exposed by setting the 68a315d43aSScott Long.Va hw.ciss.expose_hidden_physical 695203edcdSRuslan Ermilovtunable to non-zero at boot time. 705203edcdSRuslan ErmilovDirect Access devices (such as disk 71a315d43aSScott Longdrives) are only exposed as 72a315d43aSScott Long.Xr pass 4 735203edcdSRuslan Ermilovdevices. 745203edcdSRuslan ErmilovHot-insertion and removal of devices is supported but a bus 75a315d43aSScott Longrescan might be necessary. 761b3f128dSSimon L. B. Nielsen.Sh HARDWARE 771b3f128dSSimon L. B. NielsenControllers supported by the 781b3f128dSSimon L. B. Nielsen.Nm 791b3f128dSSimon L. B. Nielsendriver include: 8017596f06STom Rhodes.Pp 811b3f128dSSimon L. B. Nielsen.Bl -bullet -compact 82ace5be68SRuslan Ermilov.It 83ace5be68SRuslan ErmilovCompaq Smart Array 5300 84ace5be68SRuslan Ermilov.It 85ace5be68SRuslan ErmilovCompaq Smart Array 532 86ace5be68SRuslan Ermilov.It 87ace5be68SRuslan ErmilovCompaq Smart Array 5i 8815d25d32SSimon L. B. Nielsen.It 8915d25d32SSimon L. B. NielsenHP Smart Array 5312 9015d25d32SSimon L. B. Nielsen.It 9115d25d32SSimon L. B. NielsenHP Smart Array 6i 9215d25d32SSimon L. B. Nielsen.It 9315d25d32SSimon L. B. NielsenHP Smart Array 641 9415d25d32SSimon L. B. Nielsen.It 9515d25d32SSimon L. B. NielsenHP Smart Array 642 9615d25d32SSimon L. B. Nielsen.It 9715d25d32SSimon L. B. NielsenHP Smart Array 6400 9815d25d32SSimon L. B. Nielsen.It 9915d25d32SSimon L. B. NielsenHP Smart Array 6400 EM 100c6131460SPaul Saab.It 1010abff1d4SSimon L. B. NielsenHP Smart Array 6422 1020abff1d4SSimon L. B. Nielsen.It 1030abff1d4SSimon L. B. NielsenHP Smart Array V100 1040abff1d4SSimon L. B. Nielsen.It 105c6131460SPaul SaabHP Modular Smart Array 20 (MSA20) 106c6131460SPaul Saab.It 107c6131460SPaul SaabHP Modular Smart Array 500 (MSA500) 10817596f06STom Rhodes.El 10917596f06STom Rhodes.Sh SEE ALSO 11017596f06STom Rhodes.Xr cam 4 , 11117596f06STom Rhodes.Xr pass 4 , 11217596f06STom Rhodes.Xr xpt 4 , 113a315d43aSScott Long.Xr loader.conf 5 , 114ace5be68SRuslan Ermilov.Xr camcontrol 8 115ace5be68SRuslan Ermilov.Rs 116ace5be68SRuslan Ermilov.%T "CISS Command Interface for SCSI-3 Support Open Specification, Version 1.04, Valence Number 1" 117ace5be68SRuslan Ermilov.%D 2000/11/27 118ace5be68SRuslan Ermilov.%Q "Compaq Computer Corporation" 119ace5be68SRuslan Ermilov.Re 12017596f06STom Rhodes.Sh AUTHORS 121ace5be68SRuslan Ermilov.An -nosplit 12217596f06STom RhodesThe 12317596f06STom Rhodes.Nm 12417596f06STom Rhodesdriver was written by 12517596f06STom Rhodes.An Mike Smith Aq msmith@FreeBSD.org . 126ace5be68SRuslan Ermilov.Pp 127ae5c97aaSTom RhodesThis manual page is based on his comments and was written by 128ae5c97aaSTom Rhodes.An Tom Rhodes Aq trhodes@FreeBSD.org . 129