Supermicro X12SPZ-SPLN6F - Page 88

Super X12SPZ-SPLN6F/LN4F User's Manual
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PCI-E Port Max Payload Size
Selecting Auto for this feature will enable the motherboard to automatically detect
the maximum Transaction Layer Packet (TLP) size for the connected PCIe device,
allowing for maximum I/O e󰀩ciency. Selecting 128B or 256B will designate maxi-
mum packet size of 128 or 256. The options are 128B, 256B, 512B, and Auto.
IOAT Conguration
Disable TPH
Transparent Huge Pages (TPH) is a Linux memory management system that en-
ables communication in larger blocks (pages). Enabling this feature will increase
performance. The options are No and Yes.
Prioritize TPH
Use this feature to enable Prioritize TPH support. The options are Enable and Dis-
able.
Relaxed Ordering
Select Enable to enable Relaxed Ordering support, which will allow certain transac-
tions to violate the strict-ordering rules of PCI bus for a transaction to be completed
prior to other transactions that have already been enqueued. The options are Dis-
able and Enable.
Intel(R) for Directed I/O (VT-d)
Intel
®
VT for Directed I/O (VT-d)
Select Yes to use Intel Virtualization Technology for Direct I/O VT-d support by report-
ing the I/O device assignments to the VMM (Virtual Machine Monitor) through the
DMAR ACPI tables. This feature o󰀨ers fully-protected I/O resource sharing across
Intel platforms, providing greater reliability, security and availability in networking and
data-sharing. The options are Yes and No.
ACS Control
Select Yes to program Access Control Services (ACS) to the chipset PCIe root port
bridge. Select No to program ACS to all PCIe root port bridges. The options are
Auto, Yes, and No.
Interrupt Remapping
Use this feature to enable Interrupt Remapping support, which detects and controls
external interrupt requests. The options are Auto, Yes, and No.