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AMR(4)			     Kernel Interfaces Manual			  AMR(4)

NAME
     amr -- MegaRAID SCSI/ATA/SATA RAID driver

SYNOPSIS
     To compile this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device pci
	   device scbus
	   device amr

     Alternatively, to load the driver as a module at boot time, place the
     following line in loader.conf(5):

	   amr_load="YES"

DESCRIPTION
     The  amr  driver provides support for LSI Logic MegaRAID SCSI, ATA and SATA
     RAID controllers and legacy American Megatrends  MegaRAID	SCSI  RAID  con-
     trollers, including models relabeled and sold by Dell and Hewlett-Packard.

     LSI MegaRAID SAS controllers are supported by mfi(4) and will not work with
     this driver.

HARDWARE
     Controllers supported by the amr driver include:

     *	 MegaRAID SATA 150-4
     *	 MegaRAID SATA 150-6
     *	 MegaRAID SATA 300-4X
     *	 MegaRAID SATA 300-8X
     *	 MegaRAID SCSI 320-1E
     *	 MegaRAID SCSI 320-2E
     *	 MegaRAID SCSI 320-4E
     *	 MegaRAID SCSI 320-0X
     *	 MegaRAID SCSI 320-2X
     *	 MegaRAID SCSI 320-4X
     *	 MegaRAID SCSI 320-0
     *	 MegaRAID SCSI 320-1
     *	 MegaRAID SCSI 320-2
     *	 MegaRAID SCSI 320-4
     *	 MegaRAID Series 418
     *	 MegaRAID i4 133 RAID
     *	 MegaRAID Elite 1500 (Series 467)
     *	 MegaRAID Elite 1600 (Series 493)
     *	 MegaRAID Elite 1650 (Series 4xx)
     *	 MegaRAID Enterprise 1200 (Series 428)
     *	 MegaRAID Enterprise 1300 (Series 434)
     *	 MegaRAID Enterprise 1400 (Series 438)
     *	 MegaRAID Enterprise 1500 (Series 467)
     *	 MegaRAID Enterprise 1600 (Series 471)
     *	 MegaRAID Express 100 (Series 466WS)
     *	 MegaRAID Express 200 (Series 466)
     *	 MegaRAID Express 300 (Series 490)
     *	 MegaRAID Express 500 (Series 475)
     *	 Dell PERC
     *	 Dell PERC 2/SC
     *	 Dell PERC 2/DC
     *	 Dell PERC 3/DCL
     *	 Dell PERC 3/QC
     *	 Dell PERC 4/DC
     *	 Dell PERC 4/IM
     *	 Dell PERC 4/SC
     *	 Dell PERC 4/Di
     *	 Dell PERC 4e/DC
     *	 Dell PERC 4e/Di
     *	 Dell PERC 4e/Si
     *	 Dell PERC 4ei
     *	 HP NetRAID-1/Si
     *	 HP NetRAID-3/Si (D4943A)
     *	 HP Embedded NetRAID
     *	 Intel RAID Controller SRCS16
     *	 Intel RAID Controller SRCU42X

DIAGNOSTICS
   Driver initialisation/shutdown phase
     amr%d: memory window not available
     amr%d: I/O window not available

     The PCI BIOS did not allocate resources necessary for the correct operation
     of the controller.  The driver cannot attach to this controller.

     amr%d: busmaster bit not set, enabling

     The  PCI  BIOS did not enable busmaster DMA, which is required for the cor-
     rect operation of the controller.	The driver has enabled this bit and ini-
     tialisation will proceed.

     amr%d: can't allocate register window
     amr%d: can't allocate interrupt
     amr%d: can't set up interrupt
     amr%d: can't allocate parent DMA tag
     amr%d: can't allocate buffer DMA tag
     amr%d: can't allocate scatter/gather DMA tag
     amr%d: can't allocate s/g table
     amr%d: can't allocate mailbox tag
     amr%d: can't allocate mailbox memory

     A resource allocation error occurred while initialising  the  driver;  ini-
     tialisation has failed and the driver will not attach to this controller.

     amr%d: can't obtain configuration data from controller
     amr%d: can't obtain product data from controller

     The  driver  was  unable  to  obtain vital configuration data from the con-
     troller.  Initialisation has failed and the driver will not attach to  this
     controller.

     amr%d: can't establish configuration hook
     amr%d: can't scan controller for drives

     The  scan	for  logical drives managed by the controller failed.  No drives
     will be attached.

     amr%d: device_add_child failed
     amr%d: bus_generic_attach returned %d

     Creation of the logical drive instances failed; attachment of one	or  more
     logical drives may have been aborted.

     amr%d: flushing cache...

     The controller cache is being flushed prior to shutdown or detach.

   Operational diagnostics
     amr%d: I/O beyond end of unit (%u,%d > %u)

     A	partitioning  error  or disk corruption has caused an I/O request beyond
     the end of the logical drive.  This may also occur if FlexRAID Virtual Siz-
     ing is enabled and an I/O operation is attempted on a portion of  the  vir-
     tual drive beyond the actual capacity available.

     amr%d: polled command timeout

     An  initialisation  command timed out.  The initialisation process may fail
     as a result.

     amr%d: bad slot %d completed

     The controller reported completion of a command that the driver did not is-
     sue.  This may result in  data  corruption,  and  suggests  a  hardware  or
     firmware problem with the system or controller.

     amr%d: I/O error - %x

     An I/O error has occurred.

SEE ALSO
     cd(4), da(4), mfi(4), sa(4), scsi(4)

AUTHORS
     The amr driver was written by Mike Smith <msmith@FreeBSD.org>.

     This  manual page was written by Mike Smith <msmith@FreeBSD.org> and Jeroen
     Ruigrok van der Werven <asmodai@FreeBSD.org>.

FreeBSD 9.1			 March 29, 2006 			  AMR(4)
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