4 process login (prli), Process login (prli) – Seagate Fibre Channel Interface User Manual
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Fibre Channel Interface Manual, Rev. D
9.2.4
Process Login (PRLI)
Process Login (PRLI) is sent by the initiator to a target to establish the SCSI FCP operating features.
Field definitions (listed alphabetically)
Command/Data Mixed Allowed
1
The initiator sends data in the same sequence as the command. The drive does not support Command/Data Mixed.
It will accept a PRLI with the Allow bit set, but will return a 0 in the accept to indicate the function cannot be used.
Table 39:
PRLI Payload
Bit
Byte
7
6
5
4
3
2
1
0
0
0
0
1
0
0
0
0
0
LS Command Code
1
0
0
0
1
0
0
0
0
Page Length
2
0
0
0
0
0
0
0
0
3
0
0
0
1
0
1
0
0
Payload Length
4
0
0
0
0
1
0
0
0
Type Code
5
0
0
0
0
0
0
0
0
Type Code Extension
6
0
Orig Proc
Assc Valid
0
Resp Proc
Assc Valid
Est Image
Pair
0
0
0
Reserved
0
0
7
Reserved
8
(MSB)
Originator Process Associator
9
10
11
(LSB)
12
(MSB)
Responder Process Associator
13
14
15
(LSB)
16
Reserved
17
Reserved
18
Reserved
19
0
Reserved
Data
Overlay
Allow
Initiator
Function
Target
Function
Command/
Data
Mix
Data/
Response
Mix
RD XFR
RDY
Disable
WR XFR
RDY
Disable
Service Parameters
Table
number