Datasheet

Integrated I/O (IIO) Configuration Registers
248 Intel
®
Xeon
®
Processor E7-2800/4800/8800 v2 Product Family
Datasheet Volume Two: Functional Description, February 2014
14.2.64 ACSCAPHDR
Access Control Services Extended Capability Header.
14.2.65 ACSCAP
Access Control Services Capability Register.
Type: CFG PortID: N/A
Bus: 0 Device: 0Function:0 (PCIe* Mode)
Bus: 0 Device: 2Function:0-3
Bus: 0 Device: 3Function:0-3
Offset: 0x110
Bit Attr Default Description
31:20 RO_V 0x148
next_capability_offset:
This field points to the next Capability in extended configuration space.
In PCIe* Mode, it points to the Advanced Error Capability.
19:16 RO 0x1
capability_version:
Set to 1h for this version of the PCI Express logic
15:0 RO 0xd
pci_express_extended_cap_id:
Assigned for Access Control Services capability by PCISIG.
Type: CFG PortID: N/A
Bus: 0 Device: 0Function:0 (PCIe* mode)
Bus: 0 Device: 2Function:0-3
Bus: 0 Device: 3Function:0-3
Offset: 0x114
Bit Attr Default Description
15:8 RO 0x0
egress_control_vector_size:
N/A for IIO
7:7 RV - Reserved.
6:6 RO 0x0
t:
Applies only to root ports. Indicates that the component
does not implement ACS Direct Translated P2P.
5:5 RO 0x0
e:
Applies only to root ports. Indicates that the component
does not implement ACS P2P Egress Control.
4:4
RO_V (Device 2 and 3
Function 0)
RO (Device 0 Function 0,
Device 2 and 3 Function 1-3)
0x1
u:
Applies only to root ports. Indicates that the component
implements ACS Upstream Forwarding.
3:3
RO_V (Device 2 and 3
Function 0)
RO (Device 0 Function 0,
Device 2 and 3 Function 1-3)
0x1
c:
Applies only to root ports. Indicates that the component
implements ACS P2P Completion Redirect.
2:2
RO_V (Device 2 and 3
Function 0)
RO (Device 0 Function 0,
Device 2 and 3 Function 1-3)
0x1
r:
Applies only to root ports. Indicates that the component
implements ACS P2P Request Redirect.