Seagate Fibre Channel Interface User Manual
Page 156
142
Fibre Channel Interface Manual, Rev. D
Field definitions (listed alphabetically)
Length of Response Information
1
The Length of Response Information contains the byte length of the FCP response information in the frame. Valid
lengths for the response information are 0, 4, and 8. The Length of Response Information field is always transferred
in the FCP RSP frame.
Length of Sense Information
1
The Length of Sense Information contains the byte length of the additional SCSI sense information in the frame. The
Length of Sense Information field is always transferred in the FCP RSP frame.
Residual Count
Only valid when a Resid Under Run or Resid Over Run bit is set. When this field is valid, the value is a byte count.
Resid Over Run (Residual Over Run)
1
The byte count in the Residual Count field, bytes 12–15, is the number of bytes not transferred because the length
of the transfer in the CDB exceeded the DL field in the FCP CMND.
Table 85:
FCP RSP Payload
Bit
Byte
7
6
5
4
3
2
1
0
0
(MSB)
:
Reserved
9
(LSB)
10
0
0 0
Reserved
0
Resid
Under Run
Resid
Over Run
Sense
Length
Valid
RSP
Length
Valid
11
SCSI Status
12
(MSB)
Residual Count
13
14
15
(LSB)
16
(MSB)
Length of Sense Information
17
18
19
(LSB)
20
(MSB)
Length of Response Information
21
22
23
(LSB)
24
:
31
(MSB)
Response Information
(LSB)
32
:
51
(MSB)
SCSI Extended Sense Information
(LSB)
Table
number