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kernel_samsung_sm7125/Documentation/scsi/aic79xx.txt

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====================================================================
= Adaptec Ultra320 Family Manager Set =
= =
= 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. Additional Notes
5. Contacting Adaptec
1. Supported Hardware
The following Adaptec SCSI Host Adapters are supported by this
driver set.
Ultra320 ASIC Description
----------------------------------------------------------------
AIC-7901A Single Channel 64-bit PCI-X 133MHz to
Ultra320 SCSI ASIC
AIC-7901B Single Channel 64-bit PCI-X 133MHz to
Ultra320 SCSI ASIC with Retained Training
AIC-7902A4 Dual Channel 64-bit PCI-X 133MHz to
Ultra320 SCSI ASIC
AIC-7902B Dual Channel 64-bit PCI-X 133MHz to
Ultra320 SCSI ASIC with Retained Training
Ultra320 Adapters Description ASIC
--------------------------------------------------------------------------
Adaptec SCSI Card 39320 Dual Channel 64-bit PCI-X 133MHz to 7902A4/7902B
Ultra320 SCSI Card (one external
68-pin, two internal 68-pin)
Adaptec SCSI Card 39320A Dual Channel 64-bit PCI-X 133MHz to 7902B
Ultra320 SCSI Card (one external
68-pin, two internal 68-pin)
Adaptec SCSI Card 39320D Dual Channel 64-bit PCI-X 133MHz to 7902A4
Ultra320 SCSI Card (two external VHDC
and one internal 68-pin)
Adaptec SCSI Card 39320D Dual Channel 64-bit PCI-X 133MHz to 7902A4
Ultra320 SCSI Card (two external VHDC
and one internal 68-pin) based on the
AIC-7902B ASIC
Adaptec SCSI Card 29320 Single Channel 64-bit PCI-X 133MHz to 7901A
Ultra320 SCSI Card (one external
68-pin, two internal 68-pin, one
internal 50-pin)
Adaptec SCSI Card 29320A Single Channel 64-bit PCI-X 133MHz to 7901B
Ultra320 SCSI Card (one external
68-pin, two internal 68-pin, one
internal 50-pin)
Adaptec SCSI Card 29320LP Single Channel 64-bit Low Profile 7901A
PCI-X 133MHz to Ultra320 SCSI Card
(One external VHDC, one internal
68-pin)
Adaptec SCSI Card 29320ALP Single Channel 64-bit Low Profile 7901B
PCI-X 133MHz to Ultra320 SCSI Card
(One external VHDC, one internal
68-pin)
2. Version History
3.0 (December 1st, 2005)
- Updated driver to use SCSI transport class infrastructure
- Upported sequencer and core fixes from adaptec released
version 2.0.15 of the driver.
1.3.11 (July 11, 2003)
- Fix several deadlock issues.
- Add 29320ALP and 39320B Id's.
1.3.10 (June 3rd, 2003)
- Align the SCB_TAG field on a 16byte boundary. This avoids
SCB corruption on some PCI-33 busses.
- Correct non-zero luns on Rev B. hardware.
- Update for change in 2.5.X SCSI proc FS interface.
- 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.
- Implement controller susupend and resume.
- 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.
1.3.9 (May 22nd, 2003)
- Fix compiler errors.
- Remove S/G splitting for segments that cross a 4GB boundary.
This is guaranteed not to happen in Linux.
- Add support for scsi_report_device_reset() found in
2.5.X kernels.
- Add 7901B support.
- Simplify handling of the packetized lun Rev A workaround.
- 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.
1.3.8 (April 29th, 2003)
- Fix types accessed via the command line interface code.
- Perform a few firmware optimizations.
- Fix "Unexpected PKT busfree" errors.
- Use a sequencer interrupt to notify the host of
commands with bad status. We defer the notification
until there are no outstanding selections to ensure
that the host is interrupted for as short a time as
possible.
- Remove pre-2.2.X support.
- Add support for new 2.5.X interrupt API.
- Correct big-endian architecture support.
1.3.7 (April 16th, 2003)
- Use del_timer_sync() to ensure that no timeouts
are pending during controller shutdown.
- For pre-2.5.X kernels, carefully adjust our segment
list size to avoid SCSI malloc pool fragmentation.
- Cleanup channel display in our /proc output.
- Workaround duplicate device entries in the mid-layer
devlice list during add-single-device.
1.3.6 (March 28th, 2003)
- Correct a double free in the Domain Validation code.
- Correct a reference to free'ed memory during controller
shutdown.
- Reset the bus on an SE->LVD change. This is required
to reset our transcievers.
1.3.5 (March 24th, 2003)
- Fix a few register window mode bugs.
- Include read streaming in the PPR flags we display in
diagnostics as well as /proc.
- Add PCI hot plug support for 2.5.X kernels.
- Correct default precompensation value for RevA hardware.
- Fix Domain Validation thread shutdown.
- Add a firmware workaround to make the LED blink
brighter during packetized operations on the H2A4.
- Correct /proc display of user read streaming settings.
- Simplify driver locking by releasing the io_request_lock
upon driver entry from the mid-layer.
- Cleanup command line parsing and move much of this code
to aiclib.
1.3.4 (February 28th, 2003)
- Correct a race condition in our error recovery handler.
- Allow Test Unit Ready commands to take a full 5 seconds
during Domain Validation.
1.3.2 (February 19th, 2003)
- Correct a Rev B. regression due to the GEM318
compatibility fix included in 1.3.1.
1.3.1 (February 11th, 2003)
- Add support for the 39320A.
- Improve recovery for certain PCI-X errors.
- Fix handling of LQ/DATA/LQ/DATA for the
same write transaction that can occur without
interveining training.
- Correct compatibility issues with the GEM318
enclosure services device.
- Correct data corruption issue that occurred under
high tag depth write loads.
- Adapt to a change in the 2.5.X daemonize() API.
- Correct a "Missing case in ahd_handle_scsiint" panic.
1.3.0 (January 21st, 2003)
- Full regression testing for all U320 products completed.
- Added abort and target/lun reset error recovery handler and
interrupt coalessing.
1.2.0 (November 14th, 2002)
- Added support for Domain Validation
- Add support for the Hewlett-Packard version of the 39320D
and AIC-7902 adapters.
Support for previous adapters has not been fully tested and should
only be used at the customer's own risk.
1.1.1 (September 24th, 2002)
- Added support for the Linux 2.5.X kernel series
1.1.0 (September 17th, 2002)
- Added support for four additional SCSI products:
ASC-39320, ASC-29320, ASC-29320LP, AIC-7901.
1.0.0 (May 30th, 2002)
- Initial driver release.
2.1. Software/Hardware Features
- Support for the SPI-4 "Ultra320" standard:
- 320MB/s transfer rates
- Packetized SCSI Protocol at 160MB/s and 320MB/s
- Quick Arbitration Selection (QAS)
- Retained Training Information (Rev B. ASIC only)
- Interrupt Coalessing
- Initiator Mode (target mode not currently
supported)
- Support for the PCI-X standard up to 133MHz
- Support for the PCI v2.2 standard
- Domain Validation
2.2. Operating System Support:
- Redhat Linux 7.2, 7.3, 8.0, Advanced Server 2.1
- SuSE Linux 7.3, 8.0, 8.1, Enterprise Server 7
- only Intel and AMD x86 supported at this time
- >4GB memory configurations supported.
Refer to the User's Guide for more details on this.
3. Command Line Options
WARNING: ALTERING OR ADDING THESE DRIVER PARAMETERS
INCORRECTLY CAN RENDER YOUR SYSTEM INOPERABLE.
USE THEM WITH CAUTION.
Edit the file "modprobe.conf" in the directory /etc and add/edit a
line containing 'options aic79xx aic79xx=[command[,command...]]' where
'command' is one or more of the following:
-----------------------------------------------------------------
Option: verbose
Definition: enable additional informative messages during
driver operation.
Possible Values: This option is a flag
Default Value: disabled
-----------------------------------------------------------------
Option: debug:[value]
Definition: Enables various levels of debugging information
The bit definitions for the debugging mask can
be found in drivers/scsi/aic7xxx/aic79xx.h under
the "Debug" heading.
Possible Values: 0x0000 = no debugging, 0xffff = full debugging
Default Value: 0x0000
-----------------------------------------------------------------
Option: no_reset
Definition: Do not reset the bus during the initial probe
phase
Possible Values: This option is a flag
Default Value: disabled
-----------------------------------------------------------------
Option: extended
Definition: Force extended translation on the controller
Possible Values: This option is a flag
Default Value: disabled
-----------------------------------------------------------------
Option: 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
-----------------------------------------------------------------
Option: reverse_scan
Definition: Probe the scsi bus in reverse order, starting
with target 15
Possible Values: This option is a flag
Default Value: disabled
-----------------------------------------------------------------
Option: global_tag_depth
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
-----------------------------------------------------------------
Option: 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 ommitted indicating that they should retain
the default tag depth.
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.
Possible Values: 1 - 253
Default Value: 32
-----------------------------------------------------------------
Option: rd_strm: {rd_strm_bitmask[,rd_strm_bitmask...]}
Definition: Enable read streaming on a per target basis.
The rd_strm_bitmask is a 16 bit hex value in which
each bit represents a target. Setting the target's
bit to '1' enables read streaming for that
target. Controllers may be ommitted indicating that
they should retain the default read streaming setting.
Example: rd_strm:{0x0041}
On Controller 0
enables read streaming for targets 0 and 6.
disables read streaming for targets 1-5,7-15.
All other targets retain the default read
streaming setting.
Example: rd_strm:{0x0023,,0xFFFF}
On Controller 0
enables read streaming for targets 1,2, and 5.
disables read streaming for targets 3,4,6-15.
On Controller 2
enables read streaming for all targets.
All other targets retain the default read
streaming setting.
Possible Values: 0x0000 - 0xffff
Default Value: 0x0000
-----------------------------------------------------------------
Option: dv: {value[,value...]}
Definition: Set Domain Validation Policy on a per-controller basis.
Controllers may be ommitted indicating that
they should retain the default read streaming setting.
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.
Possible Values: < 0 Use setting from serial EEPROM.
0 Disable DV
> 0 Enable DV
Default Value: DV Serial EEPROM configuration setting.
-----------------------------------------------------------------
Option: seltime:[value]
Definition: Specifies the selection timeout value
Possible Values: 0 = 256ms, 1 = 128ms, 2 = 64ms, 3 = 32ms
Default Value: 0
-----------------------------------------------------------------
*** The following three options should only be changed at ***
*** the direction of a technical support representative. ***
-----------------------------------------------------------------
Option: precomp: {value[,value...]}
Definition: Set IO Cell precompensation value on a per-controller
basis.
Controllers may be ommitted indicating that
they should retain the default precompensation setting.
Example: precomp:{0x1}
On Controller 0 set precompensation to 1.
Example: precomp:{1,,7}
On Controller 0 set precompensation to 1.
On Controller 2 set precompensation to 8.
Possible Values: 0 - 7
Default Value: Varies based on chip revision
-----------------------------------------------------------------
Option: slewrate: {value[,value...]}
Definition: Set IO Cell slew rate on a per-controller basis.
Controllers may be ommitted indicating that
they should retain the default slew rate setting.
Example: slewrate:{0x1}
On Controller 0 set slew rate to 1.
Example: slewrate :{1,,8}
On Controller 0 set slew rate to 1.
On Controller 2 set slew rate to 8.
Possible Values: 0 - 15
Default Value: Varies based on chip revision
-----------------------------------------------------------------
Option: amplitude: {value[,value...]}
Definition: Set IO Cell signal amplitude on a per-controller basis.
Controllers may be ommitted indicating that
they should retain the default read streaming setting.
Example: amplitude:{0x1}
On Controller 0 set amplitude to 1.
Example: amplitude :{1,,7}
On Controller 0 set amplitude to 1.
On Controller 2 set amplitude to 7.
Possible Values: 1 - 7
Default Value: Varies based on chip revision
-----------------------------------------------------------------
Example: 'options aic79xx aic79xx=verbose,rd_strm:{{0x0041}}'
enables verbose output in the driver and turns read streaming on
for targets 0 and 6 of Controller 0.
4. Additional Notes
4.1. Known/Unresolved or FYI Issues
* Under SuSE Linux Enterprise 7, the driver may fail to operate
correctly due to a problem with PCI interrupt routing in the
Linux kernel. Please contact SuSE for an updated Linux
kernel.
4.2. Third-Party Compatibility Issues
* Adaptec only supports Ultra320 hard drives running
the latest firmware available. Please check with
your hard drive manufacturer to ensure you have the
latest version.
4.3. Operating System or Technology Limitations
* PCI Hot Plug is untested and may cause the operating system
to stop responding.
* Luns that are not numbered contiguously starting with 0 might not
be automatically probed during system startup. This is a limitation
of the OS. Please contact your Linux vendor for instructions on
manually probing non-contiguous luns.
* Using the Driver Update Disk version of this package during OS
installation under RedHat might result in two versions of this
driver being installed into the system module directory. This
might cause problems with the /sbin/mkinitrd program and/or
other RPM packages that try to install system modules. The best
way to correct this once the system is running is to install
the latest RPM package version of this driver, available from
http://www.adaptec.com.
5. 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-europe.com/.
- 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 (c) 2003 Adaptec Inc. 691 S. Milpitas Blvd., Milpitas CA 95035 USA.
* All rights reserved.
*
* You are permitted to redistribute, use and modify this README file in whole
* or in part in conjunction with redistribution of software governed by the
* General Public License, provided that the following conditions are met:
* 1. Redistributions of README file must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* 3. Modifications or new contributions must be attributed in a copyright
* notice identifying the author ("Contributor") and added below the
* original copyright notice. The copyright notice is for purposes of
* identifying contributors and should not be deemed as permission to alter
* the permissions given by Adaptec.
*
* THIS README FILE IS PROVIDED BY ADAPTEC AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, ANY
* WARRANTIES OF NON-INFRINGEMENT OR THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* ADAPTEC OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS README
* FILE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/