Pirq Routing & Irq Reservation Submenu - Congatec COM Express conga-TC87 User Manual

Feature
Maximum Read Request
ASPM
Extended Synch
Link Training Retry
Link Training Timeout (us)
Unpopulated Links
Restore PCIe Registers
10.4.5.2 PIRQ Routing & IRQ Reservation Submenu
Feature
PIRQA
PIRQB
PIRQC
PIRQD
PIRQE
PIRQF
PIRQG
PIRQH
Reserve Legacy Interrupt 1
Reserve Legacy Interrupt 2
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Options Description
Auto Set maximum read request size of PCI Express devices or allow system BIOS to select the value.
128 Bytes
256 Bytes
512 Bytes
1024 Bytes
2048 Bytes
4096 Bytes
Disabled PCI Express Active State Power Management settings.
Auto
Force L0s
Disabled If enabled, the generation of extended PCI Express synchronization patterns is allowed.
Enabled
Disabled, 2, 3, 5 Defines number of retry attempts software will take to retrain the link if previous training attempt was unsuccessful.
10-10000 Defines number of microseconds software will wait before polling link training bit in the link status register. Value
Default : 100
ranges from 10 to 10000 us.
Keep Link On In order to save power, software will disable unpopulated PCI Express links, if this option is set to disabled.
Disabled
Enabled On non-PCI Express aware operating systems some devices may not be re-initialized correctly after S3. Setting this
Disabled
node to Enabled restores PCI Express configuration on S3 resume.
Warning: Enabling this may cause issues with other hardware after S3 resume.
Options Description
Auto, IRQ3, IRQ4, Set interrupt for selected PIRQ. Please refer to the board's resource list for a detailed list of devices connected to the
IRQ5, IRQ6, respective PIRQ.
IRQ10, IRQ11, NOTE: These settings will only be effective while operating in PIC (non-IOAPIC) interrupt mode.
IRQ14, IRQ15
same as PIRQA same as PIRQA
same as PIRQA same as PIRQA
same as PIRQA same as PIRQA
same as PIRQA same as PIRQA
same as PIRQA same as PIRQA
same as PIRQA same as PIRQA
same as PIRQA same as PIRQA
None, IRQ3,
The interrupt reserved here will not be assigned to any PCI or PCI Express device and thus maybe available for some
IRQ4, IRQ5, IRQ6, legacy bus device.
IRQ10, IRQ11,
IRQ14, IRQ15
same as Reserve same as Reserve Legacy Interrupt 1
Legacy Interrupt 1
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