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@@ -20,743 +20,6 @@
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* On June 18, 2001 Initio Corp. acquired ConnectCom's SCSI assets
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*/
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-/*
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-
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- Documentation for the AdvanSys Driver
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-
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- A. Linux Kernels Supported by this Driver
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- B. Adapters Supported by this Driver
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- C. Linux source files modified by AdvanSys Driver
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- D. Source Comments
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- E. Driver Compile Time Options and Debugging
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- F. Driver LILO Option
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- G. Tests to run before releasing new driver
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- H. Release History
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- I. Known Problems/Fix List
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- J. Credits (Chronological Order)
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-
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- A. Linux Kernels Supported by this Driver
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-
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- This driver has been tested in the following Linux kernels: v2.2.18
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- v2.4.0. The driver is supported on v2.2 and v2.4 kernels and on x86,
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- alpha, and PowerPC platforms.
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-
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- B. Adapters Supported by this Driver
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-
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- 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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-
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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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-
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- Laptop Products:
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- ABP-480 - Bus-Master CardBus (16 CDB) (2.4 kernel and greater)
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-
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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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-
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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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-
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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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-
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- C. Linux source files modified by AdvanSys Driver
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-
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- This section for historical purposes documents the changes
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- originally made to the Linux kernel source to add the advansys
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- driver. As Linux has changed some of these files have also
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- been modified.
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-
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- 1. linux/arch/i386/config.in:
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-
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- bool 'AdvanSys SCSI support' CONFIG_SCSI_ADVANSYS y
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-
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- 2. linux/drivers/scsi/hosts.c:
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-
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- #ifdef CONFIG_SCSI_ADVANSYS
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- #include "advansys.h"
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- #endif
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-
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- and after "static struct scsi_host_template builtin_scsi_hosts[] =":
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-
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- #ifdef CONFIG_SCSI_ADVANSYS
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- ADVANSYS,
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- #endif
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-
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- 3. linux/drivers/scsi/Makefile:
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-
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- ifdef CONFIG_SCSI_ADVANSYS
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- SCSI_SRCS := $(SCSI_SRCS) advansys.c
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- SCSI_OBJS := $(SCSI_OBJS) advansys.o
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- else
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- SCSI_MODULE_OBJS := $(SCSI_MODULE_OBJS) advansys.o
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- endif
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-
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- 4. linux/init/main.c:
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-
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- extern void advansys_setup(char *str, int *ints);
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-
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- and add the following lines to the bootsetups[] array.
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-
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- #ifdef CONFIG_SCSI_ADVANSYS
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- { "advansys=", advansys_setup },
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- #endif
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-
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- D. Source Comments
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-
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- 1. Use tab stops set to 4 for the source files. For vi use 'se tabstops=4'.
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-
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- 2. This driver should be maintained in multiple files. But to make
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- it easier to include with Linux and to follow Linux conventions,
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- the whole driver is maintained in the source files advansys.h and
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- advansys.c. In this file logical sections of the driver begin with
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- a comment that contains '---'. The following are the logical sections
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- of the driver below.
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-
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- --- Linux Version
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- --- Linux Include File
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- --- Driver Options
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- --- Debugging Header
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- --- Asc Library Constants and Macros
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- --- Adv Library Constants and Macros
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- --- Driver Constants and Macros
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- --- Driver Structures
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- --- Driver Data
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- --- Driver Function Prototypes
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- --- Linux 'struct scsi_host_template' and advansys_setup() Functions
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- --- Loadable Driver Support
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- --- Miscellaneous Driver Functions
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- --- Functions Required by the Asc Library
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- --- Functions Required by the Adv Library
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- --- Tracing and Debugging Functions
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- --- Asc Library Functions
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- --- Adv Library Functions
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-
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- 3. The string 'XXX' is used to flag code that needs to be re-written
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- or that contains a problem that needs to be addressed.
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-
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- 4. I have stripped comments from and reformatted the source for the
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- Asc Library and Adv Library to reduce the size of this file. This
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- source can be found under the following headings. The Asc Library
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- is used to support Narrow Boards. The Adv Library is used to
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- support Wide Boards.
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-
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- --- Asc Library Constants and Macros
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- --- Adv Library Constants and Macros
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- --- Asc Library Functions
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- --- Adv Library Functions
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-
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- E. Driver Compile Time Options and Debugging
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-
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- In this source file the following constants can be defined. They are
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- defined in the source below. Both of these options are enabled by
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- default.
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-
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- 1. ADVANSYS_ASSERT - Enable driver assertions (Def: Enabled)
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-
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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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-
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- 2. ADVANSYS_DEBUG - Enable driver debugging (Def: Disabled)
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-
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- Enabling this option adds tracing functions to the driver and
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- the ability to set a driver tracing level at boot time. This
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- option will also export symbols not required outside the driver to
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- the kernel name space. This option is very useful for debugging
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- the driver, but it will add to the size of the driver execution
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- image and add overhead to the execution of the driver.
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-
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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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-
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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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-
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- linux advansys=0x330,0,0,0,0xdeb2
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-
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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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-
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- insmod advansys.o asc_dbglvl=1
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-
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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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-
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- To enable debug output to console, please make sure that:
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-
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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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-
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- kern.* /dev/console
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-
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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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-
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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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-
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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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-
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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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-
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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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-
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- 3. ADVANSYS_STATS - Enable statistics (Def: Enabled >= v1.3.0)
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-
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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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-
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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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-
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- AdvanSys SCSI adapter files have the following path name format:
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-
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- /proc/scsi/advansys/{0,1,2,3,...}
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-
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- This information can be displayed with cat. For example:
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-
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- cat /proc/scsi/advansys/0
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-
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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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-
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- F. Driver LILO Option
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-
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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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-
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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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-
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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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-
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- insmod advansys.o asc_iopflag=1 asc_ioport=0x110,0x330
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-
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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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-
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- G. Tests to run before releasing new driver
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-
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- 1. In the supported kernels verify there are no warning or compile
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- errors when the kernel is built as both a driver and as a module
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- and with the following options:
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-
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- ADVANSYS_DEBUG - enabled and disabled
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- CONFIG_SMP - enabled and disabled
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- CONFIG_PROC_FS - enabled and disabled
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-
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- 2. Run tests on an x86, alpha, and PowerPC with at least one narrow
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- card and one wide card attached to a hard disk and CD-ROM drive:
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- fdisk, mkfs, fsck, bonnie, copy/compare test from the
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- CD-ROM to the hard drive.
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-
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- H. Release History
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-
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- BETA-1.0 (12/23/95):
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- First Release
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-
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- BETA-1.1 (12/28/95):
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- 1. Prevent advansys_detect() from being called twice.
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- 2. Add LILO 0xdeb[0-f] option to set 'asc_dbglvl'.
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-
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- 1.2 (1/12/96):
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- 1. Prevent re-entrancy in the interrupt handler which
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- resulted in the driver hanging Linux.
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- 2. Fix problem that prevented ABP-940 cards from being
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- recognized on some PCI motherboards.
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- 3. Add support for the ABP-5140 PnP ISA card.
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- 4. Fix check condition return status.
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- 5. Add conditionally compiled code for Linux v1.3.X.
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-
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- 1.3 (2/23/96):
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- 1. Fix problem in advansys_biosparam() that resulted in the
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- wrong drive geometry being returned for drives > 1GB with
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- extended translation enabled.
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- 2. Add additional tracing during device initialization.
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- 3. Change code that only applies to ISA PnP adapter.
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- 4. Eliminate 'make dep' warning.
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- 5. Try to fix problem with handling resets by increasing their
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- timeout value.
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-
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- 1.4 (5/8/96):
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- 1. Change definitions to eliminate conflicts with other subsystems.
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- 2. Add versioning code for the shared interrupt changes.
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- 3. Eliminate problem in asc_rmqueue() with iterating after removing
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- a request.
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- 4. Remove reset request loop problem from the "Known Problems or
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- Issues" section. This problem was isolated and fixed in the
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- mid-level SCSI driver.
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-
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- 1.5 (8/8/96):
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- 1. Add support for ABP-940U (PCI Ultra) adapter.
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- 2. Add support for IRQ sharing by setting the IRQF_SHARED flag for
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- request_irq and supplying a dev_id pointer to both request_irq()
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- and free_irq().
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- 3. In AscSearchIOPortAddr11() restore a call to check_region() which
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- should be used before I/O port probing.
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- 4. Fix bug in asc_prt_hex() which resulted in the displaying
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- the wrong data.
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- 5. Incorporate miscellaneous Asc Library bug fixes and new microcode.
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- 6. Change driver versioning to be specific to each Linux sub-level.
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- 7. Change statistics gathering to be per adapter instead of global
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- to the driver.
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- 8. Add more information and statistics to the adapter /proc file:
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- /proc/scsi/advansys[0...].
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- 9. Remove 'cmd_per_lun' from the "Known Problems or Issues" list.
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- This problem has been addressed with the SCSI mid-level changes
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- made in v1.3.89. The advansys_select_queue_depths() function
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- was added for the v1.3.89 changes.
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-
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- 1.6 (9/10/96):
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- 1. Incorporate miscellaneous Asc Library bug fixes and new microcode.
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-
|
|
|
- 1.7 (9/25/96):
|
|
|
- 1. Enable clustering and optimize the setting of the maximum number
|
|
|
- of scatter gather elements for any particular board. Clustering
|
|
|
- increases CPU utilization, but results in a relatively larger
|
|
|
- increase in I/O throughput.
|
|
|
- 2. Improve the performance of the request queuing functions by
|
|
|
- adding a last pointer to the queue structure.
|
|
|
- 3. Correct problems with reset and abort request handling that
|
|
|
- could have hung or crashed Linux.
|
|
|
- 4. Add more information to the adapter /proc file:
|
|
|
- /proc/scsi/advansys[0...].
|
|
|
- 5. Remove the request timeout issue form the driver issues list.
|
|
|
- 6. Miscellaneous documentation additions and changes.
|
|
|
-
|
|
|
- 1.8 (10/4/96):
|
|
|
- 1. Make changes to handle the new v2.1.0 kernel memory mapping
|
|
|
- in which a kernel virtual address may not be equivalent to its
|
|
|
- bus or DMA memory address.
|
|
|
- 2. Change abort and reset request handling to make it yet even
|
|
|
- more robust.
|
|
|
- 3. Try to mitigate request starvation by sending ordered requests
|
|
|
- to heavily loaded, tag queuing enabled devices.
|
|
|
- 4. Maintain statistics on request response time.
|
|
|
- 5. Add request response time statistics and other information to
|
|
|
- the adapter /proc file: /proc/scsi/advansys[0...].
|
|
|
-
|
|
|
- 1.9 (10/21/96):
|
|
|
- 1. Add conditionally compiled code (ASC_QUEUE_FLOW_CONTROL) to
|
|
|
- make use of mid-level SCSI driver device queue depth flow
|
|
|
- control mechanism. This will eliminate aborts caused by a
|
|
|
- device being unable to keep up with requests and eliminate
|
|
|
- repeat busy or QUEUE FULL status returned by a device.
|
|
|
- 2. Incorporate miscellaneous Asc Library bug fixes.
|
|
|
- 3. To allow the driver to work in kernels with broken module
|
|
|
- support set 'cmd_per_lun' if the driver is compiled as a
|
|
|
- module. This change affects kernels v1.3.89 to present.
|
|
|
- 4. Remove PCI BIOS address from the driver banner. The PCI BIOS
|
|
|
- is relocated by the motherboard BIOS and its new address can
|
|
|
- not be determined by the driver.
|
|
|
- 5. Add mid-level SCSI queue depth information to the adapter
|
|
|
- /proc file: /proc/scsi/advansys[0...].
|
|
|
-
|
|
|
- 2.0 (11/14/96):
|
|
|
- 1. Change allocation of global structures used for device
|
|
|
- initialization to guarantee they are in DMA-able memory.
|
|
|
- Previously when the driver was loaded as a module these
|
|
|
- structures might not have been in DMA-able memory, causing
|
|
|
- device initialization to fail.
|
|
|
-
|
|
|
- 2.1 (12/30/96):
|
|
|
- 1. In advansys_reset(), if the request is a synchronous reset
|
|
|
- request, even if the request serial number has changed, then
|
|
|
- complete the request.
|
|
|
- 2. Add Asc Library bug fixes including new microcode.
|
|
|
- 3. Clear inquiry buffer before using it.
|
|
|
- 4. Correct ifdef typo.
|
|
|
-
|
|
|
- 2.2 (1/15/97):
|
|
|
- 1. Add Asc Library bug fixes including new microcode.
|
|
|
- 2. Add synchronous data transfer rate information to the
|
|
|
- adapter /proc file: /proc/scsi/advansys[0...].
|
|
|
- 3. Change ADVANSYS_DEBUG to be disabled by default. This
|
|
|
- will reduce the size of the driver image, eliminate execution
|
|
|
- overhead, and remove unneeded symbols from the kernel symbol
|
|
|
- space that were previously added by the driver.
|
|
|
- 4. Add new compile-time option ADVANSYS_ASSERT for assertion
|
|
|
- code that used to be defined within ADVANSYS_DEBUG. This
|
|
|
- option is enabled by default.
|
|
|
-
|
|
|
- 2.8 (5/26/97):
|
|
|
- 1. Change version number to 2.8 to synchronize the Linux driver
|
|
|
- version numbering with other AdvanSys drivers.
|
|
|
- 2. Reformat source files without tabs to present the same view
|
|
|
- of the file to everyone regardless of the editor tab setting
|
|
|
- being used.
|
|
|
- 3. Add Asc Library bug fixes.
|
|
|
-
|
|
|
- 3.1A (1/8/98):
|
|
|
- 1. Change version number to 3.1 to indicate that support for
|
|
|
- Ultra-Wide adapters (ABP-940UW) is included in this release.
|
|
|
- 2. Add Asc Library (Narrow Board) bug fixes.
|
|
|
- 3. Report an underrun condition with the host status byte set
|
|
|
- to DID_UNDERRUN. Currently DID_UNDERRUN is defined to 0 which
|
|
|
- causes the underrun condition to be ignored. When Linux defines
|
|
|
- its own DID_UNDERRUN the constant defined in this file can be
|
|
|
- removed.
|
|
|
- 4. Add patch to AscWaitTixISRDone().
|
|
|
- 5. Add support for up to 16 different AdvanSys host adapter SCSI
|
|
|
- channels in one system. This allows four cards with four channels
|
|
|
- to be used in one system.
|
|
|
-
|
|
|
- 3.1B (1/9/98):
|
|
|
- 1. Handle that PCI register base addresses are not always page
|
|
|
- aligned even though ioremap() requires that the address argument
|
|
|
- be page aligned.
|
|
|
-
|
|
|
- 3.1C (1/10/98):
|
|
|
- 1. Update latest BIOS version checked for from the /proc file.
|
|
|
- 2. Don't set microcode SDTR variable at initialization. Instead
|
|
|
- wait until device capabilities have been detected from an Inquiry
|
|
|
- command.
|
|
|
-
|
|
|
- 3.1D (1/21/98):
|
|
|
- 1. Improve performance when the driver is compiled as module by
|
|
|
- allowing up to 64 scatter-gather elements instead of 8.
|
|
|
-
|
|
|
- 3.1E (5/1/98):
|
|
|
- 1. Set time delay in AscWaitTixISRDone() to 1000 ms.
|
|
|
- 2. Include SMP locking changes.
|
|
|
- 3. For v2.1.93 and newer kernels use CONFIG_PCI and new PCI BIOS
|
|
|
- access functions.
|
|
|
- 4. Update board serial number printing.
|
|
|
- 5. Try allocating an IRQ both with and without the IRQF_DISABLED
|
|
|
- flag set to allow IRQ sharing with drivers that do not set
|
|
|
- the IRQF_DISABLED flag. Also display a more descriptive error
|
|
|
- message if request_irq() fails.
|
|
|
- 6. Update to latest Asc and Adv Libraries.
|
|
|
-
|
|
|
- 3.2A (7/22/99):
|
|
|
- 1. Update Adv Library to 4.16 which includes support for
|
|
|
- the ASC38C0800 (Ultra2/LVD) IC.
|
|
|
-
|
|
|
- 3.2B (8/23/99):
|
|
|
- 1. Correct PCI compile time option for v2.1.93 and greater
|
|
|
- kernels, advansys_info() string, and debug compile time
|
|
|
- option.
|
|
|
- 2. Correct DvcSleepMilliSecond() for v2.1.0 and greater
|
|
|
- kernels. This caused an LVD detection/BIST problem problem
|
|
|
- among other things.
|
|
|
- 3. Sort PCI cards by PCI Bus, Slot, Function ascending order
|
|
|
- to be consistent with the BIOS.
|
|
|
- 4. Update to Asc Library S121 and Adv Library 5.2.
|
|
|
-
|
|
|
- 3.2C (8/24/99):
|
|
|
- 1. Correct PCI card detection bug introduced in 3.2B that
|
|
|
- prevented PCI cards from being detected in kernels older
|
|
|
- than v2.1.93.
|
|
|
-
|
|
|
- 3.2D (8/26/99):
|
|
|
- 1. Correct /proc device synchronous speed information display.
|
|
|
- Also when re-negotiation is pending for a target device
|
|
|
- note this condition with an * and footnote.
|
|
|
- 2. Correct initialization problem with Ultra-Wide cards that
|
|
|
- have a pre-3.2 BIOS. A microcode variable changed locations
|
|
|
- in 3.2 and greater BIOSes which caused WDTR to be attempted
|
|
|
- erroneously with drives that don't support WDTR.
|
|
|
-
|
|
|
- 3.2E (8/30/99):
|
|
|
- 1. Fix compile error caused by v2.3.13 PCI structure change.
|
|
|
- 2. Remove field from ASCEEP_CONFIG that resulted in an EEPROM
|
|
|
- checksum error for ISA cards.
|
|
|
- 3. Remove ASC_QUEUE_FLOW_CONTROL conditional code. The mid-level
|
|
|
- SCSI changes that it depended on were never included in Linux.
|
|
|
-
|
|
|
- 3.2F (9/3/99):
|
|
|
- 1. Handle new initial function code added in v2.3.16 for all
|
|
|
- driver versions.
|
|
|
-
|
|
|
- 3.2G (9/8/99):
|
|
|
- 1. Fix PCI board detection in v2.3.13 and greater kernels.
|
|
|
- 2. Fix comiple errors in v2.3.X with debugging enabled.
|
|
|
-
|
|
|
- 3.2H (9/13/99):
|
|
|
- 1. Add 64-bit address, long support for Alpha and UltraSPARC.
|
|
|
- The driver has been verified to work on an Alpha system.
|
|
|
- 2. Add partial byte order handling support for Power PC and
|
|
|
- other big-endian platforms. This support has not yet been
|
|
|
- completed or verified.
|
|
|
- 3. For wide boards replace block zeroing of request and
|
|
|
- scatter-gather structures with individual field initialization
|
|
|
- to improve performance.
|
|
|
- 4. Correct and clarify ROM BIOS version detection.
|
|
|
-
|
|
|
- 3.2I (10/8/99):
|
|
|
- 1. Update to Adv Library 5.4.
|
|
|
- 2. Add v2.3.19 underrun reporting to asc_isr_callback() and
|
|
|
- adv_isr_callback(). Remove DID_UNDERRUN constant and other
|
|
|
- no longer needed code that previously documented the lack
|
|
|
- of underrun handling.
|
|
|
-
|
|
|
- 3.2J (10/14/99):
|
|
|
- 1. Eliminate compile errors for v2.0 and earlier kernels.
|
|
|
-
|
|
|
- 3.2K (11/15/99):
|
|
|
- 1. Correct debug compile error in asc_prt_adv_scsi_req_q().
|
|
|
- 2. Update Adv Library to 5.5.
|
|
|
- 3. Add ifdef handling for /proc changes added in v2.3.28.
|
|
|
- 4. Increase Wide board scatter-gather list maximum length to
|
|
|
- 255 when the driver is compiled into the kernel.
|
|
|
-
|
|
|
- 3.2L (11/18/99):
|
|
|
- 1. Fix bug in adv_get_sglist() that caused an assertion failure
|
|
|
- at line 7475. The reqp->sgblkp pointer must be initialized
|
|
|
- to NULL in adv_get_sglist().
|
|
|
-
|
|
|
- 3.2M (11/29/99):
|
|
|
- 1. Really fix bug in adv_get_sglist().
|
|
|
- 2. Incorporate v2.3.29 changes into driver.
|
|
|
-
|
|
|
- 3.2N (4/1/00):
|
|
|
- 1. Add CONFIG_ISA ifdef code.
|
|
|
- 2. Include advansys_interrupts_enabled name change patch.
|
|
|
- 3. For >= v2.3.28 use new SCSI error handling with new function
|
|
|
- advansys_eh_bus_reset(). Don't include an abort function
|
|
|
- because of base library limitations.
|
|
|
- 4. For >= v2.3.28 use per board lock instead of io_request_lock.
|
|
|
- 5. For >= v2.3.28 eliminate advansys_command() and
|
|
|
- advansys_command_done().
|
|
|
- 6. Add some changes for PowerPC (Big Endian) support, but it isn't
|
|
|
- working yet.
|
|
|
- 7. Fix "nonexistent resource free" problem that occurred on a module
|
|
|
- unload for boards with an I/O space >= 255. The 'n_io_port' field
|
|
|
- is only one byte and can not be used to hold an ioport length more
|
|
|
- than 255.
|
|
|
-
|
|
|
- 3.3A (4/4/00):
|
|
|
- 1. Update to Adv Library 5.8.
|
|
|
- 2. For wide cards add support for CDBs up to 16 bytes.
|
|
|
- 3. Eliminate warnings when CONFIG_PROC_FS is not defined.
|
|
|
-
|
|
|
- 3.3B (5/1/00):
|
|
|
- 1. Support for PowerPC (Big Endian) wide cards. Narrow cards
|
|
|
- still need work.
|
|
|
- 2. Change bitfields to shift and mask access for endian
|
|
|
- portability.
|
|
|
-
|
|
|
- 3.3C (10/13/00):
|
|
|
- 1. Update for latest 2.4 kernel.
|
|
|
- 2. Test ABP-480 CardBus support in 2.4 kernel - works!
|
|
|
- 3. Update to Asc Library S123.
|
|
|
- 4. Update to Adv Library 5.12.
|
|
|
-
|
|
|
- 3.3D (11/22/00):
|
|
|
- 1. Update for latest 2.4 kernel.
|
|
|
- 2. Create patches for 2.2 and 2.4 kernels.
|
|
|
-
|
|
|
- 3.3E (1/9/01):
|
|
|
- 1. Now that 2.4 is released remove ifdef code for kernel versions
|
|
|
- less than 2.2. The driver is now only supported in kernels 2.2,
|
|
|
- 2.4, and greater.
|
|
|
- 2. Add code to release and acquire the io_request_lock in
|
|
|
- the driver entrypoint functions: advansys_detect and
|
|
|
- advansys_queuecommand. In kernel 2.4 the SCSI mid-level driver
|
|
|
- still holds the io_request_lock on entry to SCSI low-level drivers.
|
|
|
- This was supposed to be removed before 2.4 was released but never
|
|
|
- happened. When the mid-level SCSI driver is changed all references
|
|
|
- to the io_request_lock should be removed from the driver.
|
|
|
- 3. Simplify error handling by removing advansys_abort(),
|
|
|
- AscAbortSRB(), AscResetDevice(). SCSI bus reset requests are
|
|
|
- now handled by resetting the SCSI bus and fully re-initializing
|
|
|
- the chip. This simple method of error recovery has proven to work
|
|
|
- most reliably after attempts at different methods. Also now only
|
|
|
- support the "new" error handling method and remove the obsolete
|
|
|
- error handling interface.
|
|
|
- 4. Fix debug build errors.
|
|
|
-
|
|
|
- 3.3F (1/24/01):
|
|
|
- 1. Merge with ConnectCom version from Andy Kellner which
|
|
|
- updates Adv Library to 5.14.
|
|
|
- 2. Make PowerPC (Big Endian) work for narrow cards and
|
|
|
- fix problems writing EEPROM for wide cards.
|
|
|
- 3. Remove interrupts_enabled assertion function.
|
|
|
-
|
|
|
- 3.3G (2/16/01):
|
|
|
- 1. Return an error from narrow boards if passed a 16 byte
|
|
|
- CDB. The wide board can already handle 16 byte CDBs.
|
|
|
-
|
|
|
- 3.3GJ (4/15/02):
|
|
|
- 1. hacks for lk 2.5 series (D. Gilbert)
|
|
|
-
|
|
|
- 3.3GJD (10/14/02):
|
|
|
- 1. change select_queue_depths to slave_configure
|
|
|
- 2. make cmd_per_lun be sane again
|
|
|
-
|
|
|
- 3.3K [2004/06/24]:
|
|
|
- 1. continuing cleanup for lk 2.6 series
|
|
|
- 2. Fix problem in lk 2.6.7-bk2 that broke PCI wide cards
|
|
|
- 3. Fix problem that oopsed ISA cards
|
|
|
-
|
|
|
- I. Known Problems/Fix List (XXX)
|
|
|
-
|
|
|
- 1. Need to add memory mapping workaround. Test the memory mapping.
|
|
|
- If it doesn't work revert to I/O port access. Can a test be done
|
|
|
- safely?
|
|
|
- 2. Handle an interrupt not working. Keep an interrupt counter in
|
|
|
- the interrupt handler. In the timeout function if the interrupt
|
|
|
- has not occurred then print a message and run in polled mode.
|
|
|
- 3. Allow bus type scanning order to be changed.
|
|
|
- 4. Need to add support for target mode commands, cf. CAM XPT.
|
|
|
-
|
|
|
- J. 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> continues the Advansys SCSI
|
|
|
- driver development for ConnectCom (Version > 3.3F).
|
|
|
-
|
|
|
- K. ConnectCom (AdvanSys) Contact Information
|
|
|
-
|
|
|
- Mail: ConnectCom Solutions, Inc.
|
|
|
- 1150 Ringwood Court
|
|
|
- San Jose, CA 95131
|
|
|
- Operator/Sales: 1-408-383-9400
|
|
|
- FAX: 1-408-383-9612
|
|
|
- Tech Support: 1-408-467-2930
|
|
|
- Tech Support E-Mail: linux@connectcom.net
|
|
|
- FTP Site: ftp.connectcom.net (login: anonymous)
|
|
|
- Web Site: http://www.connectcom.net
|
|
|
-
|
|
|
-*/
|
|
|
-
|
|
|
-/*
|
|
|
- * --- Linux Include Files
|
|
|
- */
|
|
|
-
|
|
|
#include <linux/module.h>
|
|
|
#include <linux/string.h>
|
|
|
#include <linux/kernel.h>
|
|
|
@@ -785,20 +48,29 @@
|
|
|
#include <scsi/scsi.h>
|
|
|
#include <scsi/scsi_host.h>
|
|
|
|
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|
-/* FIXME: (by jejb@steeleye.com)
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+/* FIXME:
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*
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- * Although all of the necessary command mapping places have the
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- * appropriate dma_map.. APIs, the driver still processes its internal
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- * queue using bus_to_virt() and virt_to_bus() which are illegal under
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- * the API. The entire queue processing structure will need to be
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- * altered to fix this.
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+ * 1. Although all of the necessary command mapping places have the
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+ * appropriate dma_map.. APIs, the driver still processes its internal
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+ * queue using bus_to_virt() and virt_to_bus() which are illegal under
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+ * the API. The entire queue processing structure will need to be
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+ * altered to fix this.
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+ * 2. Need to add memory mapping workaround. Test the memory mapping.
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+ * If it doesn't work revert to I/O port access. Can a test be done
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+ * safely?
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+ * 3. Handle an interrupt not working. Keep an interrupt counter in
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+ * the interrupt handler. In the timeout function if the interrupt
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+ * has not occurred then print a message and run in polled mode.
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+ * 4. Need to add support for target mode commands, cf. CAM XPT.
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+ * 5. check DMA mapping functions for failure
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+ * 6. Remove internal queueing
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+ * 7. Use scsi_transport_spi
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+ * 8. advansys_info is not safe against multiple simultaneous callers
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+ * 9. Kill boardp->id
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+ * 10. Add module_param to override ISA/VLB ioport array
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*/
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#warning this driver is still not properly converted to the DMA API
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-/*
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- * --- Driver Options
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- */
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-
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/* Enable driver assertions. */
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#define ADVANSYS_ASSERT
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Matthew Wilcox