Intel E7-8891 v2 CM8063601377422 User Manual

Product codes
CM8063601377422
Page of 504
Integrated I/O (IIO) Configuration Registers
298
Intel
®
 Xeon
® 
Processor E7-2800/4800/8800 v2 Product Family
Datasheet Volume Two: Functional Description, February 2014
14.2.125 XPPMER[0:1]
XP PM Resource Event.
This register is used to select queuing structures for measurement. Use of this event 
register is mutually exclusive with the XPPMEV{L,H} registers. The Event Register 
Select field in the PMR register must select this register for to enable monitoring 
operations of the queues. 
Type:
CFG
PortID:
N/A
Bus:
0
Device:
0Function:0
Bus:
0
Device:
2Function:0
Bus:
0
Device:
3Function:0
Offset:
0x4ac, 0x4b0
Bit
Attr
Default
Description
31:21
RV
-
Reserved.
20:17
RW
0x0
xp_resource_assignment:
This selects which PCI Express links are being monitored.A logic 1 selects 
that PCIe* link for monitoring.
1000: Select N/A / PXP6 / PXP10 (depending on device number) for 
monitoring.
0100: Select PXP2 / PXP5 / PXP9 (depending on device number) for 
monitoring.
0010: Select PXP1 / PXP4 / PXP8 (depending on device number) for 
monitoring.
0001: Select PXP / PXP3 / PXP7 (depending on device number) for 
monitoring. 
16:13
RW
0x0
link_send_utilization:
This level signal that is active when the link could send a packet or an idle. 
The choices are a logic idle flit, a link layer packet, or a transaction layer 
packet. The user can count the number of clocks that the link is not active by 
inverting this signal in the event conditioning logic (PMR.EVPOLINV = 1).The 
selection listed combines all the links for clarity. If the user is operating on 
XP3 then the bit field selects Links[6:3] only.
0000: No event selected
1000: Link 6 (xp3), link 10 (xp7), reserved, reserved
0100: Link 5 (xp3), link 9 (xp7), reserved, reserved
0010: Link 4 (xp3), link 8 (xp7), port 2 (xp0), reserved
0001: Link 3 (xp3), link 7 (xp7), link 1 (xp0), link 0 (xp0 -DMI) 
12:8
RV
-
Reserved.
7:6
RW
0x0
flowcntrclass:
5:0
RW
0x0
qbussel:
Queue Measurement Bus Select: This field selects a queue to monitor. These 
queues are connected the QueueMeasBus that is derived from the difference 
in the write and read pointers.
000000: No queues selected
010001: xp0, xp3, xp7 - Inbound data payload
010010: xp1, xp4, xp8 - Inbound data payload
010100: xp2, xp5, xp9 - Inbound data payload
011000: N/A, xp6, xp10 - Inbound data payload
100001: xp0, xp3, xp7 - Outbound data payload
100010: xp1, xp4, xp8 - Outbound data payload
100100: xp2, xp5, xp9 - Outbound data payload
101000: N/A, xp6, xp10 - Outbound data payload
others: reserved
N/A: not applicable.
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