2 .\" Written by Tom Rhodes
3 .\" This file is in the public domain.
10 .Nd Common Interface for SCSI-3 Support driver
12 To compile this driver into the kernel,
13 place the following lines in your
14 kernel configuration file:
15 .Bd -ragged -offset indent
20 Alternatively, to load the driver as a
21 module at boot time, place the following line in
23 .Bd -literal -offset indent
29 driver claims to provide a common interface between generic SCSI
30 transports and intelligent host adapters.
36 as defined in the document entitled
37 .%T "CISS Command Interface for SCSI-3 Support Open Specification, Version 1.04, Valence Number 1" ,
38 dated 2000/11/27, produced by Compaq Computer Corporation.
40 We provide a shim layer between the
44 offloading most of the queueing and being-a-disk chores onto CAM.
45 Entry to the driver is via the PCI bus attachment
48 etc.\& and via the CAM interface
54 adapters require faked responses to get reasonable
58 command set is by no means adequate to support the functionality
60 and thus the supported Compaq adapters utilize portions of the
61 control protocol from earlier Compaq adapter families.
71 Non-disk devices (such as internal DATs and devices
72 attached to the external SCSI bus) are supported as normal CAM devices
73 provided that they are exported by the controller firmware and are not
74 marked as being masked.
75 Masked devices can be exposed by setting the
76 .Va hw.ciss.expose_hidden_physical
77 tunable to non-zero at boot time.
78 Direct Access devices (such as disk
79 drives) are only exposed as
82 Hot-insertion and removal of devices is supported and notification messages
83 will be reported to the console and logs.
85 The problem which adapter freezes with the message
86 .Dq ADAPTER HEARTBEAT FAILED
87 might be solved by updating the firmware and/or setting the
88 .Va hw.ciss.nop_message_heartbeat
89 tunable to non-zero at boot time.
91 Controllers supported by the
97 Compaq Smart Array 5300 (simple mode only)
99 Compaq Smart Array 532
101 Compaq Smart Array 5i
113 HP Smart Array 6400 EM
167 HP Modular Smart Array 20 (MSA20)
169 HP Modular Smart Array 500 (MSA500)
178 .%T "CISS Command Interface for SCSI-3 Support Open Specification, Version 1.04, Valence Number 1"
180 .%Q "Compaq Computer Corporation"
186 driver was written by
187 .An Mike Smith Aq msmith@FreeBSD.org .
189 This manual page is based on his comments and was written by
190 .An Tom Rhodes Aq trhodes@FreeBSD.org .