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4bd6d7f356
The 700+-line comment at the top of the advansys driver fits more comfortably in Documentation/scsi. Delete the sections on: - kernels supported - other files modified (obsolete) - source comments (obsolete) - tests to run - release history (that's what a VCS is for) - contacting connectcom (the domain has expired and the phone number is now in use by another organisation) Known problems/fix list is moved down to the section where jejb put his FIXME. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
243 lines
9.3 KiB
Text
243 lines
9.3 KiB
Text
AdvanSys (Advanced System Products, Inc.) manufactures the following
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RISC-based, Bus-Mastering, Fast (10 Mhz) and Ultra (20 Mhz) Narrow
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(8-bit transfer) SCSI Host Adapters for the ISA, EISA, VL, and PCI
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buses and RISC-based, Bus-Mastering, Ultra (20 Mhz) Wide (16-bit
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transfer) SCSI Host Adapters for the PCI bus.
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The CDB counts below indicate the number of SCSI CDB (Command
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Descriptor Block) requests that can be stored in the RISC chip
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cache and board LRAM. A CDB is a single SCSI command. The driver
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detect routine will display the number of CDBs available for each
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adapter detected. The number of CDBs used by the driver can be
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lowered in the BIOS by changing the 'Host Queue Size' adapter setting.
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Laptop Products:
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ABP-480 - Bus-Master CardBus (16 CDB)
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Connectivity Products:
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ABP510/5150 - Bus-Master ISA (240 CDB)
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ABP5140 - Bus-Master ISA PnP (16 CDB)
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ABP5142 - Bus-Master ISA PnP with floppy (16 CDB)
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ABP902/3902 - Bus-Master PCI (16 CDB)
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ABP3905 - Bus-Master PCI (16 CDB)
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ABP915 - Bus-Master PCI (16 CDB)
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ABP920 - Bus-Master PCI (16 CDB)
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ABP3922 - Bus-Master PCI (16 CDB)
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ABP3925 - Bus-Master PCI (16 CDB)
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ABP930 - Bus-Master PCI (16 CDB)
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ABP930U - Bus-Master PCI Ultra (16 CDB)
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ABP930UA - Bus-Master PCI Ultra (16 CDB)
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ABP960 - Bus-Master PCI MAC/PC (16 CDB)
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ABP960U - Bus-Master PCI MAC/PC Ultra (16 CDB)
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Single Channel Products:
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ABP542 - Bus-Master ISA with floppy (240 CDB)
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ABP742 - Bus-Master EISA (240 CDB)
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ABP842 - Bus-Master VL (240 CDB)
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ABP940 - Bus-Master PCI (240 CDB)
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ABP940U - Bus-Master PCI Ultra (240 CDB)
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ABP940UA/3940UA - Bus-Master PCI Ultra (240 CDB)
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ABP970 - Bus-Master PCI MAC/PC (240 CDB)
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ABP970U - Bus-Master PCI MAC/PC Ultra (240 CDB)
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ABP3960UA - Bus-Master PCI MAC/PC Ultra (240 CDB)
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ABP940UW/3940UW - Bus-Master PCI Ultra-Wide (253 CDB)
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ABP970UW - Bus-Master PCI MAC/PC Ultra-Wide (253 CDB)
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ABP3940U2W - Bus-Master PCI LVD/Ultra2-Wide (253 CDB)
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Multi-Channel Products:
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ABP752 - Dual Channel Bus-Master EISA (240 CDB Per Channel)
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ABP852 - Dual Channel Bus-Master VL (240 CDB Per Channel)
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ABP950 - Dual Channel Bus-Master PCI (240 CDB Per Channel)
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ABP950UW - Dual Channel Bus-Master PCI Ultra-Wide (253 CDB Per Channel)
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ABP980 - Four Channel Bus-Master PCI (240 CDB Per Channel)
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ABP980U - Four Channel Bus-Master PCI Ultra (240 CDB Per Channel)
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ABP980UA/3980UA - Four Channel Bus-Master PCI Ultra (16 CDB Per Chan.)
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ABP3950U2W - Bus-Master PCI LVD/Ultra2-Wide and Ultra-Wide (253 CDB)
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ABP3950U3W - Bus-Master PCI Dual LVD2/Ultra3-Wide (253 CDB)
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Driver Compile Time Options and Debugging
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The following constants can be defined in the source file.
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1. ADVANSYS_ASSERT - Enable driver assertions (Def: Enabled)
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Enabling this option adds assertion logic statements to the
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driver. If an assertion fails a message will be displayed to
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the console, but the system will continue to operate. Any
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assertions encountered should be reported to the person
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responsible for the driver. Assertion statements may proactively
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detect problems with the driver and facilitate fixing these
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problems. Enabling assertions will add a small overhead to the
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execution of the driver.
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2. ADVANSYS_DEBUG - Enable driver debugging (Def: Disabled)
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Enabling this option adds tracing functions to the driver and the
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ability to set a driver tracing level at boot time. This option is
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very useful for debugging the driver, but it will add to the size
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of the driver execution image and add overhead to the execution of
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the driver.
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The amount of debugging output can be controlled with the global
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variable 'asc_dbglvl'. The higher the number the more output. By
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default the debug level is 0.
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If the driver is loaded at boot time and the LILO Driver Option
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is included in the system, the debug level can be changed by
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specifying a 5th (ASC_NUM_IOPORT_PROBE + 1) I/O Port. The
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first three hex digits of the pseudo I/O Port must be set to
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'deb' and the fourth hex digit specifies the debug level: 0 - F.
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The following command line will look for an adapter at 0x330
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and set the debug level to 2.
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linux advansys=0x330,0,0,0,0xdeb2
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If the driver is built as a loadable module this variable can be
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defined when the driver is loaded. The following insmod command
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will set the debug level to one.
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insmod advansys.o asc_dbglvl=1
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Debugging Message Levels:
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0: Errors Only
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1: High-Level Tracing
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2-N: Verbose Tracing
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To enable debug output to console, please make sure that:
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a. System and kernel logging is enabled (syslogd, klogd running).
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b. Kernel messages are routed to console output. Check
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/etc/syslog.conf for an entry similar to this:
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kern.* /dev/console
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c. klogd is started with the appropriate -c parameter
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(e.g. klogd -c 8)
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This will cause printk() messages to be be displayed on the
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current console. Refer to the klogd(8) and syslogd(8) man pages
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for details.
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Alternatively you can enable printk() to console with this
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program. However, this is not the 'official' way to do this.
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Debug output is logged in /var/log/messages.
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main()
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{
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syscall(103, 7, 0, 0);
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}
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Increasing LOG_BUF_LEN in kernel/printk.c to something like
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40960 allows more debug messages to be buffered in the kernel
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and written to the console or log file.
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3. ADVANSYS_STATS - Enable statistics (Def: Enabled)
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Enabling this option adds statistics collection and display
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through /proc to the driver. The information is useful for
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monitoring driver and device performance. It will add to the
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size of the driver execution image and add minor overhead to
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the execution of the driver.
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Statistics are maintained on a per adapter basis. Driver entry
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point call counts and transfer size counts are maintained.
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Statistics are only available for kernels greater than or equal
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to v1.3.0 with the CONFIG_PROC_FS (/proc) file system configured.
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AdvanSys SCSI adapter files have the following path name format:
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/proc/scsi/advansys/{0,1,2,3,...}
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This information can be displayed with cat. For example:
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cat /proc/scsi/advansys/0
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When ADVANSYS_STATS is not defined the AdvanSys /proc files only
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contain adapter and device configuration information.
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Driver LILO Option
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If init/main.c is modified as described in the 'Directions for Adding
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the AdvanSys Driver to Linux' section (B.4.) above, the driver will
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recognize the 'advansys' LILO command line and /etc/lilo.conf option.
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This option can be used to either disable I/O port scanning or to limit
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scanning to 1 - 4 I/O ports. Regardless of the option setting EISA and
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PCI boards will still be searched for and detected. This option only
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affects searching for ISA and VL boards.
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Examples:
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1. Eliminate I/O port scanning:
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boot: linux advansys=
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or
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boot: linux advansys=0x0
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2. Limit I/O port scanning to one I/O port:
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boot: linux advansys=0x110
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3. Limit I/O port scanning to four I/O ports:
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boot: linux advansys=0x110,0x210,0x230,0x330
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For a loadable module the same effect can be achieved by setting
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the 'asc_iopflag' variable and 'asc_ioport' array when loading
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the driver, e.g.
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insmod advansys.o asc_iopflag=1 asc_ioport=0x110,0x330
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If ADVANSYS_DEBUG is defined a 5th (ASC_NUM_IOPORT_PROBE + 1)
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I/O Port may be added to specify the driver debug level. Refer to
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the 'Driver Compile Time Options and Debugging' section above for
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more information.
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Credits (Chronological Order)
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Bob Frey <bfrey@turbolinux.com.cn> wrote the AdvanSys SCSI driver
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and maintained it up to 3.3F. He continues to answer questions
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and help maintain the driver.
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Nathan Hartwell <mage@cdc3.cdc.net> provided the directions and
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basis for the Linux v1.3.X changes which were included in the
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1.2 release.
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Thomas E Zerucha <zerucha@shell.portal.com> pointed out a bug
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in advansys_biosparam() which was fixed in the 1.3 release.
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Erik Ratcliffe <erik@caldera.com> has done testing of the
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AdvanSys driver in the Caldera releases.
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Rik van Riel <H.H.vanRiel@fys.ruu.nl> provided a patch to
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AscWaitTixISRDone() which he found necessary to make the
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driver work with a SCSI-1 disk.
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Mark Moran <mmoran@mmoran.com> has helped test Ultra-Wide
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support in the 3.1A driver.
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Doug Gilbert <dgilbert@interlog.com> has made changes and
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suggestions to improve the driver and done a lot of testing.
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Ken Mort <ken@mort.net> reported a DEBUG compile bug fixed
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in 3.2K.
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Tom Rini <trini@kernel.crashing.org> provided the CONFIG_ISA
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patch and helped with PowerPC wide and narrow board support.
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Philip Blundell <philb@gnu.org> provided an
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advansys_interrupts_enabled patch.
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Dave Jones <dave@denial.force9.co.uk> reported the compiler
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warnings generated when CONFIG_PROC_FS was not defined in
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the 3.2M driver.
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Jerry Quinn <jlquinn@us.ibm.com> fixed PowerPC support (endian
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problems) for wide cards.
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Bryan Henderson <bryanh@giraffe-data.com> helped debug narrow
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card error handling.
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Manuel Veloso <veloso@pobox.com> worked hard on PowerPC narrow
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board support and fixed a bug in AscGetEEPConfig().
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Arnaldo Carvalho de Melo <acme@conectiva.com.br> made
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save_flags/restore_flags changes.
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Andy Kellner <AKellner@connectcom.net> continued the Advansys SCSI
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driver development for ConnectCom (Version > 3.3F).
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Ken Witherow for extensive testing during the development of version 3.4.
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