Supermicro X12SDV-4C-SPT4F User Manual page 72

Super X12SDV-4C/8C/10C-SPT4F User's Manual
PCIe Port Max Payload Size
Selecting Auto for this feature enables the motherboard to automatically detect the
maximum Transaction Layer Packet (TLP) size for the connected PCIe device, al-
lowing for maximum I/O efficiency. Selecting 128B or 256B designates maximum
packet size of 128 or 256. The options are 128B, 256B, 512B, and Auto.
M.2 (M-Key) CONN

M.2 (M-Key) CONN
Link Speed
Use this feature to select the link speed for the PCIe port. The options are Auto,
Gen 1 (2.5 GT/s), Gen 2 (5 GT/s), Gen 3 (8 GT/s), and Gen 4 (16 GT/s).
The following information is displayed:
•
PCIe Port Link Status
•
PCIe Port Link Max
•
PCIe Port Link Speed
PCIe Port Max Payload Size
Selecting Auto for this feature enables the motherboard to automatically detect the
maximum Transaction Layer Packet (TLP) size for the connected PCIe device, al-
lowing for maximum I/O efficiency. Selecting 128B or 256B designates maximum
packet size of 128 or 256. The options are 128B, 256B, 512B, and Auto.
IOAT Configuration

Disable TPH
Transparent Huge Pages (TPH) is a Linux memory management system that enables
communication in larger blocks (pages). Enabling this feature increases performance.
The options are No and Yes.
Prioritize TPH
Use this feature to enable Prioritize TPH support. The options are Enable and Disable.
Relaxed Ordering
Select Enable to enable Relaxed Ordering support, which allows certain transactions
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 Yes and No.
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