參數(shù)資料
型號： LSI53C770
英文描述： LSI53C770 Ultra SCSI I/O Processor technical manual v2.1 3/01
中文描述： LSI53C770超的SCSI I / O處理器技術(shù)手冊2.1 3 / 01
文件頁數(shù)： 95/166頁
文件大?。?/td> 1330K
代理商： LSI53C770
SAF-TE Module
3-47
Table 3.15
Interrupt Service Routines - SCSI Commands
SCSI Command Subroutines
Functional Description
do_inquiry
Determine if queried LUN is valid and send
the inquiry data to the Initiator.
Determine if in a unit attention state. Send
sense data to Initiator and then clear sense
data.
If following an Identify message, returns
TRUE if the identify message is not for the
LUN specified in the
config
data structure.
If not following an Identify, returns TRUE
(error) if the queried LUN number is larger
than 7.
Validates CDB. Null functionality.
Validates CDB. Null functionality.
Read data from the selected area of the
config
data structure and return the data
to the host using the function
send_data_bytes. Invalid Buffer ID values
(CDB[2]) result in a check condition and an
error condition being passed to the
software.
Transfers data from the Initiator to the
Target’s external data memory (accessed
through the
config
data structure at offset
0x3B80, variable
code_buffer
) or results
in a check condition. Data transfer is
accomplished using the
get_data_bytes
function.
Mode 01 WRITE BUFFER commands
write at most 64 Bytes of data. Invalid
requests result in a check condition.
do_request_sense
invalid_LUN_test
do_send_diagnostic
do_test_unit_ready
do_read_buffer
do_write_buffer
Mode 04 WRITE BUFFER commands
(update the SEP device) use the address
to control whether the command is to write
data, force a reboot, update the firmware
or query for error messages. The upper
address byte of the CDB, (that is, CDB[3]),
provides the switch. A maximum of
1024 bytes of data may be transferred to
the target from the host with one WRITE
BUFFER command. See
Section 3.4.2.3,
“Firmware Update,” page 3-33
for more
detailed information.
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