Seagate Fibre Channel Interface User Manual
Page 74
60
Fibre Channel Interface Manual, Rev. D
Field definitions (listed alphabetically)
Buffer to Buffer Credit
Not checked by the drive. The drive requires the Alternate Credit Model and assumes a Buffer to Buffer Credit of zero.
When the drive opens a device on the loop, it waits until it receives a R_RDY or a Close. The drive returns 0000 in the
accept.
Table 24:
N_Port Common Service Parameters
Bit
Byte
7
6
5
4
3
2
1
0
0
Highest ANSI FC-PH Version
1
Lowest ANSI FC-PH Version
2
(MSB)
Buffer to Buffer Credit
3
(LSB)
4
Contin
Increasing
Offset
Random
Relative
Offset
Valid
Vendor
Version
F_Port
Alternate
Credit
Model
E_D_TOV
Resolution
0
Reserved
0
Reserved
Common Features
5
0
0
0
0
0
Dynamic
Half Duplex
Continuous
Increase
SEQ_CNT
Payload
Length
Reserved
6
0
0
0
0
(MSB)
Reserved
Receive Data Field Size
7
(LSB)
8
Reserved
9
(MSB)
Total Concurrent Sequences
(LSB)
10
(MSB)
Relative Offset by Info Category
11
(LSB)
12
(MSB)
E_D_TOV (Pt to Pt)
13
14
15
(LSB)
Table
number