Boot time messages from host adapter drivers
When the host adapter drivers register the host adapters
that they find at boot time, they print a line with the
following format for each adapter found:
%adapter start-end IRQ DMA type=ha ha=number id=ID [[fts=]string]
where:
start-
is the start I/O address in hexadecimal
end-
is the end I/O address in hexadecimal
IRQ-
is the interrupt vector; this appears as ``-'' if the host
adapter is polled
DMA-
is the DMA channel; this appears as ``-'' if Bus
Master DMA is used. The default DMA
channel is defined in the file
/etc/conf/cf.d/mdevice. Host adapters that use
Bus Master DMA define the channel with value ``-1''.
ha-
is the host adapter driver internal name (xnamex)
number-
is the number of the host adapter as defined in the file
/etc/conf/cf.d/mscsi (see the
mscsi(F)
manual page for more details).
ID-
is the address of the host adapter on the SCSI bus
(usually 7)
string-
is the description of the host adapter. If the driver uses the
feature string (
fts=
) form, the single-letter
feature codes are:
b
-
buffers commands
d
-
supports 32-bit DMA addresses
n
-
does not require Corollary maps
s
-
supports scatter-gather read/writes
t
-
supports tagged commands
For example, consider the following example boot-time
driver initialization message:
%adapter 0x8000-0x8CDC 11 - type=eiad ha=0 id=7 fts=std
This is the first Adaptec AHA-174x host adapter on a system
that uses the eiad driver (type=eiad
ha=0
). Its start and end I/O addresses are
0x8000 and 0x8CDC, it uses interrupt
11, and it performs Bus Master DMA
(0x8000-0x8CDC 11 -
). It also supports
scatter-gather, tagged commands, and 32-bit DMA
addresses (fts=std
).
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Adding SCSI PC Card host adapters
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Adding a SCSI peripheral device
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003