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Error Type Description
Malformed TLP Uncorrectable
(fatal)
This error is caused by any of the following conditions:
• The data payload of a received TLP exceeds the
maximum payload size.
• The TD field is asserted but no TLP digest exists, or a
TLP digest exists but the TD bit of the PCI Express
request header packet is not asserted.
• A TLP violates a byte enable rule. The Hard IP block
checks for this violation, which is considered
optional by the PCI Express specifications.
• A TLP in which the type and length fields do not
correspond with the total length of the TLP.
• A TLP in which the combination of format and type
is not specified by the PCI Express specification.
• A request specifies an address/length combination
that causes a memory space access to exceed a 4
KByte boundary. The Hard IP block checks for this
violation, which is considered optional by the PCI
Express specification.
• Messages, such as Assert_INTX, Power
Management, Error Signaling, Unlock, and Set
Power Slot Limit, must be transmitted across the
default traffic class.
The Hard IP block deletes the malformed TLP; it is not
presented to the Application Layer.
Note:
1. Considered optional by the PCI Express Base Specification Revision .
Error Reporting and Data Poisoning
How the Endpoint handles a particular error depends on the configuration registers of the device.
Refer to the PCI Express Base Specification 3.0 for a description of the device signaling and logging for an
Endpoint.
The Hard IP block implements data poisoning, a mechanism for indicating that the data associated with a
transaction is corrupted. Poisoned TLPs have the error/poisoned bit of the header set to 1 and observe the
following rules:
• Received poisoned TLPs are sent to the Application Layer and status bits are automatically updated in
the Configuration Space.
• Received poisoned Configuration Write TLPs are not written in the Configuration Space.
• The Configuration Space never generates a poisoned TLP; the error/poisoned bit of the header is
always set to 0.
UG-01097_sriov
2014.12.15
Error Reporting and Data Poisoning
8-5
Error Handling
Altera Corporation
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- User Guide 1
- Datasheet 2
- Features 3
- Interface 4
- Release Information 7
- Device Family Support 7
- Example Designs 8
- Debug Features 8
- IP Core Verification 9
- Recommended Speed Grades 10
- Related Information 11
- Subscribe 12
- Qsys Subsystem Description 13
- Parameter Value 15
- Directory Description 16
- Parameter Settings 21
- Parameter Value Description 22
- SR-IOV System Settings 24
- Interrupt Capabilities 27
- Device Capabilities 29
- Error Reporting 30
- Link Capabilities 31
- Slot Capabilities 32
- Power Management 33
- PHY Characteristics 34
- Simulation Options 35
- Avalon-ST TX Interface 37
- Signal Direction Description 38
- Avalon‑ST RX Interface 40
- BAR Hit Signals 43
- Completion Side Band Signals 45
- Signal Directi 46
- Description 46
- Clock Signals 48
- Interrupt Interface 49
- Implementing MSI-X Interrupts 55
- LMI Signals 57
- Serial Data Signals 65
- Test Signals 70
- PIPE Interface Signals 71
- Byte Address 77
- MSI Registers 80
- MSI-X Capability Structure 82
- VF Device ID Register 96
- Page Size Registers 96
- Lane Error Status Register 98
- Bits Register Description 99
- Default Value 99
- Altera Corporation 100
- Registers 100
- Send Feedback 100
- Virtual Function Registers 102
- Name Description 103
- Reset and Clocks 107
- Hard IP for PCI Express 108
- Example Design 108
- UG-01097_sriov 109
- 2014.12.15 109
- Function Level Reset (FLR) 111
- Clock Domains 111
- Clock Summary 114
- Interrupts 115
- Error Handling 118
- Physical Layer Errors 119
- Data Link Layer Errors 119
- Transaction Layer Errors 120
- Error Type Description 121
- Status Bit Conditions 123
- IP Core Architecture 125
- Top-Level Interfaces 126
- Clocks and Reset 126
- Transceiver Reconfiguration 126
- Data Link Layer 127
- Physical Layer 129
- TX Packets 130
- Design Implementation 136
- CONF_DONE 137
- Endpoint Reset 137
- Root Port Reset 137
- SDC Timing Constraints 138
- Debugging 143
- Setting Up Simulation 146
- Use Third-Party PCIe Analyzer 148
- BIOS Enumeration Issues 148
- Address[31:2] 149
- Figure A-6: I/O Read Request 151
- Additional Information 155
- Typographic Conventions 156
- Visual Cue Meaning 157
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