AdvanSys (Advanced System Products, Inc.) manufactures the following
  RISC-based, Bus-Mastering, Fast (10 Mhz) and Ultra (20 Mhz) Narrow
  (8-bit transfer) SCSI Host Adapters for the ISA, EISA, VL, and PCI
  buses and RISC-based, Bus-Mastering, Ultra (20 Mhz) Wide (16-bit
  transfer) SCSI Host Adapters for the PCI bus.
  
  The CDB counts below indicate the number of SCSI CDB (Command
  Descriptor Block) requests that can be stored in the RISC chip
  cache and board LRAM. A CDB is a single SCSI command. The driver
  detect routine will display the number of CDBs available for each
  adapter detected. The number of CDBs used by the driver can be
  lowered in the BIOS by changing the 'Host Queue Size' adapter setting.
  
  Laptop Products:
     ABP-480 - Bus-Master CardBus (16 CDB)
  
  Connectivity Products:
     ABP510/5150 - Bus-Master ISA (240 CDB)
     ABP5140 - Bus-Master ISA PnP (16 CDB)
     ABP5142 - Bus-Master ISA PnP with floppy (16 CDB)
     ABP902/3902 - Bus-Master PCI (16 CDB)
     ABP3905 - Bus-Master PCI (16 CDB)
     ABP915 - Bus-Master PCI (16 CDB)
     ABP920 - Bus-Master PCI (16 CDB)
     ABP3922 - Bus-Master PCI (16 CDB)
     ABP3925 - Bus-Master PCI (16 CDB)
     ABP930 - Bus-Master PCI (16 CDB)
     ABP930U - Bus-Master PCI Ultra (16 CDB)
     ABP930UA - Bus-Master PCI Ultra (16 CDB)
     ABP960 - Bus-Master PCI MAC/PC (16 CDB)
     ABP960U - Bus-Master PCI MAC/PC Ultra (16 CDB)
  
  Single Channel Products:
     ABP542 - Bus-Master ISA with floppy (240 CDB)
     ABP742 - Bus-Master EISA (240 CDB)
     ABP842 - Bus-Master VL (240 CDB)
     ABP940 - Bus-Master PCI (240 CDB)
     ABP940U - Bus-Master PCI Ultra (240 CDB)
     ABP940UA/3940UA - Bus-Master PCI Ultra (240 CDB)
     ABP970 - Bus-Master PCI MAC/PC (240 CDB)
     ABP970U - Bus-Master PCI MAC/PC Ultra (240 CDB)
     ABP3960UA - Bus-Master PCI MAC/PC Ultra (240 CDB)
     ABP940UW/3940UW - Bus-Master PCI Ultra-Wide (253 CDB)
     ABP970UW - Bus-Master PCI MAC/PC Ultra-Wide (253 CDB)
     ABP3940U2W - Bus-Master PCI LVD/Ultra2-Wide (253 CDB)
  
  Multi-Channel Products:
     ABP752 - Dual Channel Bus-Master EISA (240 CDB Per Channel)
     ABP852 - Dual Channel Bus-Master VL (240 CDB Per Channel)
     ABP950 - Dual Channel Bus-Master PCI (240 CDB Per Channel)
     ABP950UW - Dual Channel Bus-Master PCI Ultra-Wide (253 CDB Per Channel)
     ABP980 - Four Channel Bus-Master PCI (240 CDB Per Channel)
     ABP980U - Four Channel Bus-Master PCI Ultra (240 CDB Per Channel)
     ABP980UA/3980UA - Four Channel Bus-Master PCI Ultra (16 CDB Per Chan.)
     ABP3950U2W - Bus-Master PCI LVD/Ultra2-Wide and Ultra-Wide (253 CDB)
     ABP3950U3W - Bus-Master PCI Dual LVD2/Ultra3-Wide (253 CDB)
  
  Driver Compile Time Options and Debugging
  
  The following constants can be defined in the source file.
  
  1. ADVANSYS_ASSERT - Enable driver assertions (Def: Enabled)
  
     Enabling this option adds assertion logic statements to the
     driver. If an assertion fails a message will be displayed to
     the console, but the system will continue to operate. Any
     assertions encountered should be reported to the person
     responsible for the driver. Assertion statements may proactively
     detect problems with the driver and facilitate fixing these
     problems. Enabling assertions will add a small overhead to the
     execution of the driver.
  
  2. ADVANSYS_DEBUG - Enable driver debugging (Def: Disabled)
  
     Enabling this option adds tracing functions to the driver and the
     ability to set a driver tracing level at boot time.  This option is
     very useful for debugging the driver, but it will add to the size
     of the driver execution image and add overhead to the execution of
     the driver.
  
     The amount of debugging output can be controlled with the global
     variable 'asc_dbglvl'. The higher the number the more output. By
     default the debug level is 0.
  
     If the driver is loaded at boot time and the LILO Driver Option
     is included in the system, the debug level can be changed by
     specifying a 5th (ASC_NUM_IOPORT_PROBE + 1) I/O Port. The
     first three hex digits of the pseudo I/O Port must be set to
     'deb' and the fourth hex digit specifies the debug level: 0 - F.
     The following command line will look for an adapter at 0x330
     and set the debug level to 2.
  
        linux advansys=0x330,0,0,0,0xdeb2
  
     If the driver is built as a loadable module this variable can be
     defined when the driver is loaded. The following insmod command
     will set the debug level to one.
  
        insmod advansys.o asc_dbglvl=1
  
     Debugging Message Levels:
        0: Errors Only
        1: High-Level Tracing
        2-N: Verbose Tracing
  
     To enable debug output to console, please make sure that:
  
     a. System and kernel logging is enabled (syslogd, klogd running).
     b. Kernel messages are routed to console output. Check
        /etc/syslog.conf for an entry similar to this:
  
             kern.*                  /dev/console
  
     c. klogd is started with the appropriate -c parameter
        (e.g. klogd -c 8)
  
     This will cause printk() messages to be be displayed on the
     current console. Refer to the klogd(8) and syslogd(8) man pages
     for details.
  
     Alternatively you can enable printk() to console with this
     program. However, this is not the 'official' way to do this.
     Debug output is logged in /var/log/messages.
  
       main()
       {
               syscall(103, 7, 0, 0);
       }
  
     Increasing LOG_BUF_LEN in kernel/printk.c to something like
     40960 allows more debug messages to be buffered in the kernel
     and written to the console or log file.
  
  3. ADVANSYS_STATS - Enable statistics (Def: Enabled)
  
     Enabling this option adds statistics collection and display
     through /proc to the driver. The information is useful for
     monitoring driver and device performance. It will add to the
     size of the driver execution image and add minor overhead to
     the execution of the driver.
  
     Statistics are maintained on a per adapter basis. Driver entry
     point call counts and transfer size counts are maintained.
     Statistics are only available for kernels greater than or equal
     to v1.3.0 with the CONFIG_PROC_FS (/proc) file system configured.
  
     AdvanSys SCSI adapter files have the following path name format:
  
        /proc/scsi/advansys/{0,1,2,3,...}
  
     This information can be displayed with cat. For example:
  
        cat /proc/scsi/advansys/0
  
     When ADVANSYS_STATS is not defined the AdvanSys /proc files only
     contain adapter and device configuration information.
  
  Driver LILO Option
  
  If init/main.c is modified as described in the 'Directions for Adding
  the AdvanSys Driver to Linux' section (B.4.) above, the driver will
  recognize the 'advansys' LILO command line and /etc/lilo.conf option.
  This option can be used to either disable I/O port scanning or to limit
  scanning to 1 - 4 I/O ports. Regardless of the option setting EISA and
  PCI boards will still be searched for and detected. This option only
  affects searching for ISA and VL boards.
  
  Examples:
    1. Eliminate I/O port scanning:
         boot: linux advansys=
           or
         boot: linux advansys=0x0
    2. Limit I/O port scanning to one I/O port:
         boot: linux advansys=0x110
    3. Limit I/O port scanning to four I/O ports:
         boot: linux advansys=0x110,0x210,0x230,0x330
  
  For a loadable module the same effect can be achieved by setting
  the 'asc_iopflag' variable and 'asc_ioport' array when loading
  the driver, e.g.
  
        insmod advansys.o asc_iopflag=1 asc_ioport=0x110,0x330
  
  If ADVANSYS_DEBUG is defined a 5th (ASC_NUM_IOPORT_PROBE + 1)
  I/O Port may be added to specify the driver debug level. Refer to
  the 'Driver Compile Time Options and Debugging' section above for
  more information.
  
  Credits (Chronological Order)
  
  Bob Frey <bfrey@turbolinux.com.cn> wrote the AdvanSys SCSI driver
  and maintained it up to 3.3F. He continues to answer questions
  and help maintain the driver.
  
  Nathan Hartwell <mage@cdc3.cdc.net> provided the directions and
  basis for the Linux v1.3.X changes which were included in the
  1.2 release.
  
  Thomas E Zerucha <zerucha@shell.portal.com> pointed out a bug
  in advansys_biosparam() which was fixed in the 1.3 release.
  
  Erik Ratcliffe <erik@caldera.com> has done testing of the
  AdvanSys driver in the Caldera releases.
  
  Rik van Riel <H.H.vanRiel@fys.ruu.nl> provided a patch to
  AscWaitTixISRDone() which he found necessary to make the
  driver work with a SCSI-1 disk.
  
  Mark Moran <mmoran@mmoran.com> has helped test Ultra-Wide
  support in the 3.1A driver.
  
  Doug Gilbert <dgilbert@interlog.com> has made changes and
  suggestions to improve the driver and done a lot of testing.
  
  Ken Mort <ken@mort.net> reported a DEBUG compile bug fixed
  in 3.2K.
  
  Tom Rini <trini@kernel.crashing.org> provided the CONFIG_ISA
  patch and helped with PowerPC wide and narrow board support.
  
  Philip Blundell <philb@gnu.org> provided an
  advansys_interrupts_enabled patch.
  
  Dave Jones <dave@denial.force9.co.uk> reported the compiler
  warnings generated when CONFIG_PROC_FS was not defined in
  the 3.2M driver.
  
  Jerry Quinn <jlquinn@us.ibm.com> fixed PowerPC support (endian
  problems) for wide cards.
  
  Bryan Henderson <bryanh@giraffe-data.com> helped debug narrow
  card error handling.
  
  Manuel Veloso <veloso@pobox.com> worked hard on PowerPC narrow
  board support and fixed a bug in AscGetEEPConfig().
  
  Arnaldo Carvalho de Melo <acme@conectiva.com.br> made
  save_flags/restore_flags changes.
  
  Andy Kellner <AKellner@connectcom.net> continued the Advansys SCSI
  driver development for ConnectCom (Version > 3.3F).
  
  Ken Witherow for extensive testing during the development of version 3.4.