5-19
RS720Q-E9-RS8 Series
PCI Express Gen 2 Settings
PCI Express GEN2 Device Register Settings
Completion Timeout [Default]
This option allows system software to modify the Completion Timeout value for device
Functions which support Completion Timeout programmability.
[Default] 50usto50ms.
[Shorter] Shortertimeoutrangessupportedbyhardwarewillbeused.
[Longer] Longertimeoutrangessupportedbyhardwarewillbeused.
[Disabled] DisableCompletionTimeout.
ARI Forwarding [Disabled]
IfsupportedbyhardwareandsettoEnabled,theDownstreamPortdisables
itstraditionalDeviceNumberledbeing0enforcementwhenturningaType1
CongurationRequestintoaType0CongurationRequest,permittingaccessto
Extended Functions in an ARI Device immediately below the Port.
Congurationoptions:[Disabled][Enabled]
Atomic0p Requester Enable [Disabled]
IfsupportedbyhardwareandsettoEnabled,thisfunctioninitiatesAtomic0pRequests
only if Bus Master Enable bit is in the Command Register Set.
Congurationoptions:[Disabled][Enabled]
Atomic0p Egress Blocking [Disabled]
IfsupportedbyhardwareandsettoEnabled,outboundAtomic0pRequestsviaEgress
Portswillbeblocked.
Congurationoptions:[Disabled][Enabled]
IDO Request Enable [Disabled]
IfsupportedbyhardwareandsettoEnabled,thispermitssettingthenumberofID-
BasedOrdering(IDO)bit(Attribute[2])requeststobeinitiated.
Congurationoptions:[Disabled][Enabled]
IDO Completion Enable [Disabled]
IfsupportedbyhardwareandsettoEnabled,thispermitssettingthenumberofID-
BasedOrdering(IDO)bit(Attribute[2])requeststobeinitiated.
Congurationoptions:[Disabled][Enabled]
LTR Mechanism Enable [Disabled]
IfsupportedbyhardwareandsettoEnabled,thisenablestheLatencyTolerance
Reporting(LTR)Mechanism.
Congurationoptions:[Disabled][Enabled]
End-End TLP Prefix Blocking [Disabled]
IfsupportedbyhardwareandsettoEnabled,thisfunctionwillblockforwardingofTLPs
containingEnd-EndTLPPrexes.
Congurationoptions:[Disabled][Enabled]