To compile this driver into the kernel,
place the following lines in your
kernel configuration file:
.Cd device pci
.Cd device scbus
.Cd device ahd
To compile in debugging code:
.Cd options AHD_DEBUG
.Cd options AHD_DEBUG_OPTS=<bitmask of options>
.Cd options AHD_REG_PRETTY_PRINT
To configure one or more controllers to assume the target role:
.Cd options AHD_TMODE_ENABLE=<bitmask of units>
Alternatively, to load the driver as a
module at boot time, place the following line in
This driver provides access to the
bus(es) connected to Adaptec
host adapter chips.
Driver features include support for narrow and wide busses,
fast, ultra, ultra2, ultra160, and ultra320 synchronous transfers,
packetized transfers, tagged queueing, 512 SCBs, and target mode.
option is used to control which diagnostic messages are printed to the
Logically OR the following bits together:
0x0001 Show miscellaneous information
0x0002 Show sense data
0x0004 Show Serial EEPROM contents
0x0008 Show bus termination settings
0x0010 Show host memory usage
0x0020 Show SCSI protocol messages
0x0040 Show mode pointer of the chip register window
0x0080 Show selection timeouts
0x0100 Show FIFO usage messages
0x0200 Show Queue Full status
0x0400 Show SCB queue status
0x0800 Show inbound packet information
0x1000 Show S/G list information
0x2000 Enable extra diagnostic code in the firmware
option compiles in support for human-readable bit definitions for each register
that is printed by the debugging code.
However, it also bloats the compiled
size of the driver by approximately 215KB.
Individual controllers may be configured to operate in the target role
The value assigned to this option should be a bitmap
of all units where target mode is desired.
For example, a value of 0x25 would enable target mode on units 0, 2, and 5.
Note that target mode is only supported for ultra160 speeds and below.
Per target configuration performed in the
menu, accessible at boot,
is honored by this driver.
This includes synchronous/asynchronous transfers,
maximum synchronous negotiation rate,
and the host adapters