Intel E7-8891 v2 CM8063601377422 User Manual

Product codes
CM8063601377422
Page of 504
Intel
®
 Xeon
® 
Processor E7-2800/4800/8800 v2 Product Family
117
Datasheet Volume Two: Functional Description, February 2014
Processor Uncore Configuration Registers
13.2.2.11 LEAKY_BUCKET_CFG
The leaky bucket is implemented as a 53-bit DCLK counter. The upper 42-bit of the 53-
bit counter is captured in LEAKY_BUCKET_CNTR_LO and LEAKY_BUCKET_CNTR_HI 
registers. The carry “strobe” from the not-shown least significant 11-bit counter will 
trigger this 42-bit counter-pair to count. 
LEAKY_BUCKET_CFG contains two hot encoding thresholds LEAKY_BKT_CFG_HI and 
LEAKY_BKT_CFG_LO. The 42-bit counter-pair is compared with the two thresholds pair 
specified by LEAKY_BKT_CFG_HI and LEAKY_BKT_CFG_LO. When both counter bits 
specified by the LEAKY_BKT_CFG_HI and LEAKY_BKT_CFG_LO are set, the 53-bit leaky 
bucket counter will be reset and the logic will generate a “Primary Leak Strobe” which is 
used by a 2-bit LEAKY_BKT_2ND_CNTR_REG.LEAKY_BKT_2ND_CNTR_LIMIT specifies 
the value to generate LEAK pulse which is used to decrement the correctable error 
counter by 1 as shown below table: 
Note:
A value of all zeroes in LEAKY_BUCKET_CFG register is equivalent to no leaky 
bucketing. 
15:15
RW
0x0
INTRPT_SEL_SMI (intrpt_sel_smi):
SMI enable. Set to enable SMI signaling. Clear to disable SMI signaling.
14:0
RV
-
Reserved.
Type:
CFG
PortID: N/A
Bus:
1
Device: 15
Function:
1
Bus:
1
Device: 29
Function:
1
Offset:
0xb4
Bit
Attr
Default
Description
LEAKY_BKT_2ND_CNTR_LIMIT
LEAK pulse to decrement CE counter by 1
00b (Default)
4x Primary leak strobe (four times the value programmed by the 
LEAKY_BKT_CFG_HI and LEAKY_BKT_CFG_LO)
01b
1x Primary leak strobe (same as the value programmed by the 
LEAKY_BKT_CFG_HI and LEAKY_BKT_CFG_LO)
10b
2x Primary leak strobe (two times the value programmed by the 
LEAKY_BKT_CFG_HI and LEAKY_BKT_CFG_LO)
11b
3x Primary leak strobe (two times the value programmed by the 
LEAKY_BKT_CFG_HI and LEAKY_BKT_CFG_LO)
Type:
CFG
PortID: N/A
Bus:
1
Device: 15
Function:
1
Bus:
1
Device: 29
Function:
1
Offset:
0xb8
Bit
Attr
Default
Description
31:12
RV
-
Reserved.
downloadlike
ArtboardArtboardArtboard
Report Bug