ibm3206k0424 ETC-unknow, ibm3206k0424 Datasheet - Page 254

• Manufacturer Part Number: ibm3206k0424
• Description: Ibm Processor For Network Resources
• Manufacturer: ETC-unknow

IBM3206K0424
IBM Processor for Network Resources
9.4: POOLS Client Thresholds Array
The POOLS Client Thresholds Array holds the guaranteed and total threshold values for the 16 pools and the
four (five) pointer sizes. This array contains the guaranteed and total thresholds for the managed POOLs.
When a Get Pointer primitive is processed, the values in this array are used to determine if a primitive can
return a pointer. The active count from the Active Packet Count Array is used with these registers to deter-
mine if a threshold has been exceeded. If the guaranteed threshold has been exceeded and the total not
exceeded and there is a common pointer available, then the common count will be incremented. If there are
no common buffers available or the request will cause the total threshold to be exceeded, the request will be
rejected. During a Free Pointer primitive processing, the pointer is returned to the free list and these thresh-
olds are used to determine if a common count should be credited.
Length
Type
Address
Power on Value
Restrictions
Buffer Pool Management (POOLS)
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31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31-16
Bit(s)
15-0
Guaranteed Threshold
Total Threshold.
Guaranteed Threshold
32 bits x 16 Words
Read/Write
Buffer Size 0
Buffer Size 1
Buffer Size 2
Buffer Size 3
Virtual Packets/
Buffer Size 4
X’00000000’
None
XXXX 3400
XXXX 3440
XXXX 3480
XXXX 34C0
XXXX 3500
Description
Total Threshold
9
8
7
6
5
4
pnr25.chapt04.01
August 14, 2000
3
Preliminary
2
1
0