android_kernel_samsung_sm8650_ksu/Documentation/scsi/aic7xxx.rst

.. SPDX-License-Identifier: GPL-2.0
.. include:: <isonum.txt>

========================================================
Adaptec Aic7xxx Fast -> Ultra160 Family Manager Set v7.0
========================================================

README for The Linux Operating System

The following information is available in this file:

  1. Supported Hardware
  2. Version History
  3. Command Line Options
  4. Contacting Adaptec

1. Supported Hardware
=====================

   The following Adaptec SCSI Chips and Host Adapters are supported by
   the aic7xxx driver.

   ======== ===== ========= ======== ========= ===== ===============
   Chip     MIPS  Host Bus  MaxSync  MaxWidth  SCBs  Notes
   ======== ===== ========= ======== ========= ===== ===============
   aic7770  10    EISA/VL   10MHz    16Bit      4    1
   aic7850  10    PCI/32    10MHz    8Bit       3
   aic7855  10    PCI/32    10MHz    8Bit       3
   aic7856  10    PCI/32    10MHz    8Bit       3
   aic7859  10    PCI/32    20MHz    8Bit       3
   aic7860  10    PCI/32    20MHz    8Bit       3
   aic7870  10    PCI/32    10MHz    16Bit      16
   aic7880  10    PCI/32    20MHz    16Bit      16
   aic7890  20    PCI/32    40MHz    16Bit      16      3 4 5 6 7 8
   aic7891  20    PCI/64    40MHz    16Bit      16      3 4 5 6 7 8
   aic7892  20    PCI/64-66 80MHz    16Bit      16      3 4 5 6 7 8
   aic7895  15    PCI/32    20MHz    16Bit      16    2 3 4 5
   aic7895C 15    PCI/32    20MHz    16Bit      16    2 3 4 5     8
   aic7896  20    PCI/32    40MHz    16Bit      16    2 3 4 5 6 7 8
   aic7897  20    PCI/64    40MHz    16Bit      16    2 3 4 5 6 7 8
   aic7899  20    PCI/64-66 80MHz    16Bit      16    2 3 4 5 6 7 8
   ======== ===== ========= ======== ========= ===== ===============

   1.   Multiplexed Twin Channel Device - One controller servicing two
        busses.
   2.   Multi-function Twin Channel Device - Two controllers on one chip.
   3.   Command Channel Secondary DMA Engine - Allows scatter gather list
        and SCB prefetch.
   4.   64 Byte SCB Support - Allows disconnected, untagged request table
        for all possible target/lun combinations.
   5.   Block Move Instruction Support - Doubles the speed of certain
        sequencer operations.
   6.   'Bayonet' style Scatter Gather Engine - Improves S/G prefetch
        performance.
   7.   Queuing Registers - Allows queuing of new transactions without
        pausing the sequencer.
   8.   Multiple Target IDs - Allows the controller to respond to selection
        as a target on multiple SCSI IDs.

   ============== ======= =========== =============== =============== =========
   Controller      Chip   Host-Bus    Int-Connectors  Ext-Connectors  Notes
   ============== ======= =========== =============== =============== =========
   AHA-274X[A]    aic7770   EISA         SE-50M         SE-HD50F
   AHA-274X[A]W   aic7770   EISA         SE-HD68F       SE-HD68F
                                         SE-50M
   AHA-274X[A]T   aic7770   EISA       2 X SE-50M       SE-HD50F
   AHA-2842       aic7770    VL          SE-50M         SE-HD50F
   AHA-2940AU     aic7860   PCI/32       SE-50M         SE-HD50F
   AVA-2902I      aic7860   PCI/32       SE-50M
   AVA-2902E      aic7860   PCI/32       SE-50M
   AVA-2906       aic7856   PCI/32       SE-50M         SE-DB25F
   APC-7850       aic7850   PCI/32       SE-50M                       1
   AVA-2940       aic7860   PCI/32       SE-50M
   AHA-2920B      aic7860   PCI/32       SE-50M
   AHA-2930B      aic7860   PCI/32       SE-50M
   AHA-2920C      aic7856   PCI/32       SE-50M         SE-HD50F
   AHA-2930C      aic7860   PCI/32       SE-50M
   AHA-2930C      aic7860   PCI/32       SE-50M
   AHA-2910C      aic7860   PCI/32       SE-50M
   AHA-2915C      aic7860   PCI/32       SE-50M
   AHA-2940AU/CN  aic7860   PCI/32       SE-50M         SE-HD50F
   AHA-2944W      aic7870   PCI/32     HVD-HD68F        HVD-HD68F
                                       HVD-50M
   AHA-3940W      aic7870   PCI/32     2 X SE-HD68F     SE-HD68F        2
   AHA-2940UW     aic7880   PCI/32       SE-HD68F
                                         SE-50M         SE-HD68F
   AHA-2940U      aic7880   PCI/32       SE-50M         SE-HD50F
   AHA-2940D      aic7880   PCI/32
   aHA-2940 A/T   aic7880   PCI/32
   AHA-2940D A/T  aic7880   PCI/32
   AHA-3940UW     aic7880   PCI/32     2 X SE-HD68F     SE-HD68F          3
   AHA-3940UWD    aic7880   PCI/32     2 X SE-HD68F   2 X SE-VHD68F       3
   AHA-3940U      aic7880   PCI/32     2 X SE-50M       SE-HD50F          3
   AHA-2944UW     aic7880   PCI/32      HVD-HD68F       HVD-HD68F
                                        HVD-50M
   AHA-3944UWD    aic7880   PCI/32     2 X HVD-HD68F  2 X HVD-VHD68F      3
   AHA-4944UW     aic7880   PCI/32
   AHA-2930UW     aic7880   PCI/32
   AHA-2940UW Pro aic7880   PCI/32      SE-HD68F        SE-HD68F            4
                                        SE-50M
   AHA-2940UW/CN  aic7880   PCI/32
   AHA-2940UDual  aic7895   PCI/32
   AHA-2940UWDual aic7895   PCI/32
   AHA-3940UWD    aic7895   PCI/32
   AHA-3940AUW    aic7895   PCI/32
   AHA-3940AUWD   aic7895   PCI/32
   AHA-3940AU     aic7895   PCI/32
   AHA-3944AUWD   aic7895   PCI/32     2 X HVD-HD68F  2 X HVD-VHD68F
   AHA-2940U2B    aic7890   PCI/32      LVD-HD68F       LVD-HD68F
   AHA-2940U2 OEM aic7891   PCI/64
   AHA-2940U2W    aic7890   PCI/32      LVD-HD68F       LVD-HD68F
                                        SE-HD68F
                                        SE-50M
   AHA-2950U2B    aic7891   PCI/64      LVD-HD68F       LVD-HD68F
   AHA-2930U2     aic7890   PCI/32      LVD-HD68F       SE-HD50F
                                        SE-50M
   AHA-3950U2B    aic7897   PCI/64
   AHA-3950U2D    aic7897   PCI/64
   AHA-29160      aic7892   PCI/64-66
   AHA-29160 CPQ  aic7892   PCI/64-66
   AHA-29160N     aic7892   PCI/32      LVD-HD68F       SE-HD50F
                                        SE-50M
   AHA-29160LP    aic7892   PCI/64-66
   AHA-19160      aic7892   PCI/64-66
   AHA-29150LP    aic7892   PCI/64-66
   AHA-29130LP    aic7892   PCI/64-66
   AHA-3960D      aic7899   PCI/64-66  2 X LVD-HD68F  2 X LVD-VHD68F
                                       LVD-50M
   AHA-3960D CPQ  aic7899   PCI/64-66  2 X LVD-HD68F  2 X LVD-VHD68F
                                       LVD-50M
   AHA-39160      aic7899   PCI/64-66  2 X LVD-HD68F  2 X LVD-VHD68F
                                       LVD-50M
   ============== ======= =========== =============== =============== =========

   1. No BIOS support
   2. DEC21050 PCI-PCI bridge with multiple controller chips on secondary bus
   3. DEC2115X PCI-PCI bridge with multiple controller chips on secondary bus
   4. All three SCSI connectors may be used simultaneously without
      SCSI "stub" effects.

2. Version History
==================

   * 7.0	  (4th August, 2005)
	- Updated driver to use SCSI transport class infrastructure
	- Upported sequencer and core fixes from last adaptec released
	  version of the driver.

   * 6.2.36 (June 3rd, 2003)
        - Correct code that disables PCI parity error checking.
        - Correct and simplify handling of the ignore wide residue
          message.  The previous code would fail to report a residual
          if the transaction data length was even and we received
          an IWR message.
        - Add support for the 2.5.X EISA framework.
        - Update for change in 2.5.X SCSI proc FS interface.
        - Correct Domain Validation command-line option parsing.
        - When negotiation async via an 8bit WDTR message, send
          an SDTR with an offset of 0 to be sure the target
          knows we are async.  This works around a firmware defect
          in the Quantum Atlas 10K.
        - Clear PCI error state during driver attach so that we
          don't disable memory mapped I/O due to a stray write
          by some other driver probe that occurred before we
          claimed the controller.

   * 6.2.35 (May 14th, 2003)
        - Fix a few GCC 3.3 compiler warnings.
        - Correct operation on EISA Twin Channel controller.
        - Add support for 2.5.X's scsi_report_device_reset().

   * 6.2.34 (May 5th, 2003)
        - Fix locking regression introduced in 6.2.29 that
          could cause a lock order reversal between the io_request_lock
          and our per-softc lock.  This was only possible on RH9,
          SuSE, and kernel.org 2.4.X kernels.

   * 6.2.33 (April 30th, 2003)
        - Dynamically disable PCI parity error reporting after
          10 errors are reported to the user.  These errors are
          the result of some other device issuing PCI transactions
          with bad parity.  Once the user has been informed of the
          problem, continuing to report the errors just degrades
          our performance.

   * 6.2.32 (March 28th, 2003)
        - Dynamically sized S/G lists to avoid SCSI malloc
          pool fragmentation and SCSI mid-layer deadlock.

   * 6.2.28 (January 20th, 2003)
        - Domain Validation Fixes
        - Add ability to disable PCI parity error checking.
        - Enhanced Memory Mapped I/O probe

   * 6.2.20 (November 7th, 2002)
        - Added Domain Validation.

3. Command Line Options
=======================


    .. Warning::

                 ALTERING OR ADDING THESE DRIVER PARAMETERS
                 INCORRECTLY CAN RENDER YOUR SYSTEM INOPERABLE.
                 USE THEM WITH CAUTION.

   Put a .conf file in the /etc/modprobe.d directory and add/edit a
   line containing ``options aic7xxx aic7xxx=[command[,command...]]`` where
   ``command`` is one or more of the following:

verbose

    :Definition: enable additional informative messages during driver operation.
    :Possible Values: This option is a flag
    :Default Value: disabled


debug:[value]

    :Definition: Enables various levels of debugging information
    :Possible Values: 0x0000 = no debugging, 0xffff = full debugging
    :Default Value: 0x0000

no_probe

probe_eisa_vl

    :Definition: Do not probe for EISA/VLB controllers.
		 This is a toggle.  If the driver is compiled
		 to not probe EISA/VLB controllers by default,
		 specifying "no_probe" will enable this probing.
		 If the driver is compiled to probe EISA/VLB
		 controllers by default, specifying "no_probe"
		 will disable this probing.

    :Possible Values: This option is a toggle
    :Default Value: EISA/VLB probing is disabled by default.

pci_parity

    :Definition: Toggles the detection of PCI parity errors.
		 On many motherboards with VIA chipsets,
		 PCI parity is not generated correctly on the
		 PCI bus.  It is impossible for the hardware to
		 differentiate between these "spurious" parity
		 errors and real parity errors.  The symptom of
		 this problem is a stream of the message::

		    "scsi0:	Data Parity Error Detected during address or write data phase"

		 output by the driver.

    :Possible Values: This option is a toggle
    :Default Value: PCI Parity Error reporting is disabled

no_reset

    :Definition: Do not reset the bus during the initial probe
		 phase

    :Possible Values: This option is a flag
    :Default Value: disabled

extended

    :Definition: Force extended translation on the controller
    :Possible Values: This option is a flag
    :Default Value: disabled

periodic_otag

    :Definition: Send an ordered tag periodically to prevent
		 tag starvation.  Needed for some older devices

    :Possible Values: This option is a flag
    :Default Value: disabled

reverse_scan

    :Definition: Probe the scsi bus in reverse order, starting
		with target 15

    :Possible Values: This option is a flag
    :Default Value: disabled

global_tag_depth:[value]

    :Definition: Global tag depth for all targets on all busses.
		 This option sets the default tag depth which
		 may be selectively overridden vi the tag_info
		 option.

    :Possible Values: 1 - 253
    :Default Value: 32

tag_info:{{value[,value...]}[,{value[,value...]}...]}

    :Definition: Set the per-target tagged queue depth on a
		 per controller basis.  Both controllers and targets
		 may be omitted indicating that they should retain
		 the default tag depth.

    :Possible Values: 1 - 253
    :Default Value: 32

    Examples:

	    ::

	        tag_info:{{16,32,32,64,8,8,,32,32,32,32,32,32,32,32,32}

	    On Controller 0:

		- specifies a tag depth of 16 for target 0
		- specifies a tag depth of 64 for target 3
		- specifies a tag depth of 8 for targets 4 and 5
		- leaves target 6 at the default
		- specifies a tag depth of 32 for targets 1,2,7-15
		- All other targets retain the default depth.

	    ::

                tag_info:{{},{32,,32}}

	    On Controller 1:

		- specifies a tag depth of 32 for targets 0 and 2
		- All other targets retain the default depth.

seltime:[value]

    :Definition: Specifies the selection timeout value
    :Possible Values: 0 = 256ms, 1 = 128ms, 2 = 64ms, 3 = 32ms
    :Default Value: 0

dv: {value[,value...]}

    :Definition: Set Domain Validation Policy on a per-controller basis.
		 Controllers may be omitted indicating that
		 they should retain the default read streaming setting.

    :Possible Values:

		      ==== ===============================
		       < 0 Use setting from serial EEPROM.
                         0 Disable DV
		       > 0 Enable DV
		      ==== ===============================


    :Default Value: SCSI-Select setting on controllers with a SCSI Select
		    option for DV.  Otherwise, on for controllers supporting
		    U160 speeds and off for all other controller types.

    Example:

	    ::

		dv:{-1,0,,1,1,0}

	   - On Controller 0 leave DV at its default setting.
	   - On Controller 1 disable DV.
	   - Skip configuration on Controller 2.
	   - On Controllers 3 and 4 enable DV.
	   - On Controller 5 disable DV.

Example::

    options aic7xxx aic7xxx=verbose,no_probe,tag_info:{{},{,,10}},seltime:1

enables verbose logging, Disable EISA/VLB probing,
and set tag depth on Controller 1/Target 2 to 10 tags.

4. Adaptec Customer Support
===========================

   A Technical Support Identification (TSID) Number is required for
   Adaptec technical support.

    - The 12-digit TSID can be found on the white barcode-type label
      included inside the box with your product.  The TSID helps us
      provide more efficient service by accurately identifying your
      product and support status.

   Support Options
    - Search the Adaptec Support Knowledgebase (ASK) at
      http://ask.adaptec.com for articles, troubleshooting tips, and
      frequently asked questions about your product.
    - For support via Email, submit your question to Adaptec's
      Technical Support Specialists at http://ask.adaptec.com/.

   North America
    - Visit our Web site at http://www.adaptec.com/.
    - For information about Adaptec's support options, call
      408-957-2550, 24 hours a day, 7 days a week.
    - To speak with a Technical Support Specialist,

      * For hardware products, call 408-934-7274,
        Monday to Friday, 3:00 am to 5:00 pm, PDT.
      * For RAID and Fibre Channel products, call 321-207-2000,
        Monday to Friday, 3:00 am to 5:00 pm, PDT.

      To expedite your service, have your computer with you.
    - To order Adaptec products, including accessories and cables,
      call 408-957-7274.  To order cables online go to
      http://www.adaptec.com/buy-cables/.

   Europe
    - Visit our Web site at http://www.adaptec.com/en-US/_common/world_index.
    - To speak with a Technical Support Specialist, call, or email,

      * German:  +49 89 4366 5522, Monday-Friday, 9:00-17:00 CET,
        http://ask-de.adaptec.com/.
      * French:  +49 89 4366 5533, Monday-Friday, 9:00-17:00 CET,
	http://ask-fr.adaptec.com/.
      * English: +49 89 4366 5544, Monday-Friday, 9:00-17:00 GMT,
	http://ask.adaptec.com/.

    - You can order Adaptec cables online at
      http://www.adaptec.com/buy-cables/.

   Japan
    - Visit our web site at http://www.adaptec.co.jp/.
    - To speak with a Technical Support Specialist, call
      +81 3 5308 6120, Monday-Friday, 9:00 a.m. to 12:00 p.m.,
      1:00 p.m. to 6:00 p.m.

Copyright |copy| 2003 Adaptec Inc. 691 S. Milpitas Blvd., Milpitas CA 95035 USA.

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