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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/Documentation/blockdev/cpqarray.txt
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This driver is for Compaq's SMART2 Intelligent Disk Array Controllers.

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Supported Cards:

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----------------

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This driver is known to work with the following cards:

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	* SMART (EISA)

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	* SMART-2/E (EISA)

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	* SMART-2/P

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	* SMART-2DH

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	* SMART-2SL

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	* SMART-221

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	* SMART-3100ES

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	* SMART-3200

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	* Integrated Smart Array Controller

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	* SA 4200

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	* SA 4250ES

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	* SA 431

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	* RAID LC2 Controller

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It should also work with some really old Disk array adapters, but I am

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unable to test against these cards:

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	* IDA

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	* IDA-2

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	* IAES

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EISA Controllers:

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-----------------

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If you want to use an EISA controller you'll have to supply some

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modprobe/lilo parameters.  If the driver is compiled into the kernel, must

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give it the controller's IO port address at boot time (it is not

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necessary to specify the IRQ).  For example, if you had two SMART-2/E

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controllers, in EISA slots 1 and 2 you'd give it a boot argument like

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this:

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	smart2=0x1000,0x2000

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If you were loading the driver as a module, you'd give load it like this:

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	modprobe cpqarray eisa=0x1000,0x2000

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You can use EISA and PCI adapters at the same time.

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Device Naming:

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--------------

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You need some entries in /dev for the ida device.  MAKEDEV in the /dev

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directory can make device nodes for you automatically.  The device setup is

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as follows:

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Major numbers:

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	72	ida0

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	73	ida1

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	74	ida2

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	75	ida3

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	76	ida4

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	77	ida5

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	78	ida6

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	79	ida7

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Minor numbers:

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        b7 b6 b5 b4 b3 b2 b1 b0

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        |----+----| |----+----|

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             |           |

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             |           +-------- Partition ID (0=wholedev, 1-15 partition)

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             |

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             +-------------------- Logical Volume number

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The device naming scheme is:

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/dev/ida/c0d0		Controller 0, disk 0, whole device

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/dev/ida/c0d0p1		Controller 0, disk 0, partition 1

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/dev/ida/c0d0p2		Controller 0, disk 0, partition 2

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/dev/ida/c0d0p3		Controller 0, disk 0, partition 3

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/dev/ida/c1d1		Controller 1, disk 1, whole device

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/dev/ida/c1d1p1		Controller 1, disk 1, partition 1

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/dev/ida/c1d1p2		Controller 1, disk 1, partition 2

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/dev/ida/c1d1p3		Controller 1, disk 1, partition 3

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Changelog:

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==========

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10-28-2004 :	General cleanup, syntax fixes for in-kernel driver version.

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		James Nelson <[email protected]>

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1999 :		Original Document

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