Proface PS4800 - 19 Panel PC" - Manual (Page 87)

PS-4600 Series User Manual
87
AtomicOp Re-
quester Enable Option to enable/disable the AtomicOp re-
quester. Disabled Disables this function.
Enabled Enables this function. AtomicOp que-
ries are only initiated when the bus
master enable bit is set in the com-
mand register.
AtomicOp
Egress Blocking Option to enable/disable AtomicOp egress
blocking.
If supported by hardware and set to en-
abled, outbound AtomicOp requests via
egress ports will be locked. Disabled Disables this function.
Enabled Enables this function. Outbound
AtomicOp requests via the output
port are blocked.
IDO Request En-
able If supported by hardware and set to en-
abled, this permits setting the number of
ID-based ordering (IDO) bit (Attribute[2])
requests to be initiated. Disabled Disables this function.
Enabled Enables this function.
IDO Completion
Enable If supported by hardware and set to en-
abled, this permits setting the number of
ID-based ordering (IDO) bit (Attribute[2])
requests to be initiated. Disabled Disables this function.
Enabled Enables this function.
LTR Mechanism
Enable If supported by hardware and set to en-
abled, this enables the Latency Tolerance
Reporting (LTR) mechanism. Disabled Disables this function.
Enabled Enables this function.
End-End TLP
Prefix Blocking If supported by hardware and set to en-
abled, this function block forwards the
TLPs containing End-End TLP prefixes. Disabled Disables this function.
Enabled Enables this function.
Target Link
Speed If supported by hardware and set to force to
2.5 GT/s for downstream ports, this sets an
upper limit on link operational speed by re-
districting the values advertised by the up-
stream component in its training
sequences.
When Auto is selected hardware initialized
data is used. Auto –
Force to
2.5 GT/s –
Force to
5.0 GT/s –
Clock Power
Management If supported by hardware and set to en-
abled, the device is permitted to use
CLKREQ number signal for power man-
agement of link clock in accordance to pro-
tocol defined in appropriate from form
factor specification. Disabled Disables this function.
Enabled Enables this function.
Compliance
SOS If supported by hardware and set to en-
abled, it forces the LTSSM to send SKP or-
dered sets between sequences when
sending Compliance Pattern or Modified
Compliance Pattern. Disabled Disables this function.
Enabled Enables this function.
Hardware Au-
tonomous Width If supported by hardware and set to dis-
abled, it disables the hardware ability to
change the width except width size reduc-
tion for correcting unstable link operation. Disabled Disables this function.
Enabled Enables this function.
Hardware Au-
tonomous
Speed If supported by hardware and set to dis-
abled, it disables the hardware ability to
change link speed except speed size re-
duction for correcting unstable link opera-
tion. Disabled Disables this function.
The PCIe device can no longer
change the link speed except to cor-
rect unstable operation.
Enabled Enables this function.
BIOS Setting Description Setting Op-
tions Effect