Arria® 10 Avalon® Streaming with SR-IOV IP for PCIe* User Guide

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ID 683686
Date 9/12/2024
Public
Document Table of Contents
Document Table of Contents x
1. Datasheet 2. Getting Started with the SR-IOV Design Example 3. Parameter Settings 4. Physical Layout 5. Interfaces and Signal Descriptions 6. Registers 7. Reset and Clocks 8. Programming and Testing SR-IOV Bridge MSI Interrupts 9. Error Handling 10. IP Core Architecture 11. Design Implementation 12. Debugging 13. Document Revision History A. Transaction Layer Packet (TLP) Header Formats B. Arria® 10 Avalon-ST with SR-IOV Interface for PCIe Solutions User Guide Archive
1. Datasheet x
1.1. Arria® 10 Avalon® -ST Interface with SR-IOV for PCI Express* Datasheet 1.2. Release Information 1.3. Device Family Support 1.4. Debug Features 1.5. IP Core Verification 1.6. Performance and Resource Utilization 1.7. Recommended Speed Grades for SR-IOV Interface
1.1. Arria® 10 Avalon® -ST Interface with SR-IOV for PCI Express* Datasheet x
1.1.1. SR-IOV Features
1.5. IP Core Verification x
1.5.1. Compatibility Testing Environment
2. Getting Started with the SR-IOV Design Example x
2.1. Directory Structure for Arria® 10 SR-IOV Design Example 2.2. Design Components for the SR-IOV Design Example 2.3. Generating the SR-IOV Design Example 2.4. Compiling and Simulating the Design for SR-IOV
3. Parameter Settings x
3.1. Parameters 3.2. Arria® 10 Avalon-ST Settings 3.3. Arria® 10 SR-IOV System Settings 3.4. Base Address Register (BAR) Settings 3.5. SR-IOV Device Identification Registers 3.6. Arria® 10 Interrupt Capabilities 3.7. Physical Function TLP Processing Hints (TPH) 3.8. Address Translation Services (ATS) 3.9. PCI Express and PCI Capabilities Parameters 3.10. PHY Characteristics 3.11. Example Designs
3.9. PCI Express and PCI Capabilities Parameters x
3.9.1. PCI Express and PCI Capabilities 3.9.2. Error Reporting 3.9.3. Link Capabilities 3.9.4. Slot Capabilities 3.9.5. Power Management
4. Physical Layout x
4.1. Hard IP Block Placement In Cyclone® 10 GX Devices 4.2. Hard IP Block Placement In Arria® 10 Devices 4.3. Channel and Pin Placement for the Gen1, Gen2, and Gen3 Data Rates 4.4. Channel Placement and fPLL and ATX PLL Usage for the Gen3 Data Rate 4.5. PCI Express Gen3 Bank Usage Restrictions
5. Interfaces and Signal Descriptions x
5.1. Avalon-ST TX Interface 5.2. Component-Specific Avalon-ST Interface Signals 5.3. Avalon-ST RX Interface 5.4. BAR Hit Signals 5.5. Configuration Status Interface 5.6. Clock Signals 5.7. Function-Level Reset (FLR) Interface 5.8. SR-IOV Interrupt Interface 5.9. Configuration Extension Bus (CEB) Interface 5.10. Implementing MSI-X Interrupts 5.11. Control Shadow Interface 5.12. Local Management Interface (LMI) Signals 5.13. Reset, Status, and Link Training Signals 5.14. Hard IP Reconfiguration Interface 5.15. Serial Data Signals 5.16. Test Signals 5.17. PIPE Interface Signals 5.18. Arria® 10 Development Kit Conduit Interface
5.9. Configuration Extension Bus (CEB) Interface x
5.9.1. Vital Product Data (VPD) Capability
5.9.1. Vital Product Data (VPD) Capability x
5.9.1.1. Determine the Pointer Address of an External Capability Register 5.9.1.2. VPD Capability Implementation
6. Registers x
6.1. Addresses for Physical and Virtual Functions 6.2. Correspondence between Configuration Space Registers and the PCIe Specification 6.3. PCI and PCI Express Configuration Space Registers 6.4. MSI Registers 6.5. MSI-X Capability Structure 6.6. Power Management Capability Structure 6.7. PCI Express Capability Structure 6.8. Advanced Error Reporting (AER) Enhanced Capability Header Register 6.9. Uncorrectable Error Status Register 6.10. Uncorrectable Error Mask Register 6.11. Uncorrectable Error Severity Register 6.12. Correctable Error Status Register 6.13. Correctable Error Mask Register 6.14. Advanced Error Capabilities and Control Register 6.15. Header Log Registers 0-3 6.16. SR-IOV Virtualization Extended Capabilities Registers 6.17. Virtual Function Registers
6.3. PCI and PCI Express Configuration Space Registers x
6.3.1. Type 0 Configuration Space Registers 6.3.2. PCI and PCI Express Configuration Space Register Content 6.3.3. Interrupt Line and Interrupt Pin Register
6.16. SR-IOV Virtualization Extended Capabilities Registers x
6.16.1. SR-IOV Virtualization Extended Capabilities Registers Address Map 6.16.2. ARI Enhanced Capability Header 6.16.3. SR-IOV Enhanced Capability Registers 6.16.4. Initial VFs and Total VFs Registers 6.16.5. VF Device ID Register 6.16.6. Page Size Registers 6.16.7. VF Base Address Registers (BARs) 0-5 6.16.8. Secondary PCI Express Extended Capability Header 6.16.9. Lane Status Registers 6.16.10. Transaction Processing Hints (TPH) Requester Enhanced Capability Header
7. Reset and Clocks x
7.1. Reset Sequence for Hard IP for PCI Express IP Core and Application Layer 7.2. Function Level Reset (FLR) 7.3. Clocks
7.3. Clocks x
7.3.1. Clock Domains 7.3.2. Clock Summary
7.3.1. Clock Domains x
7.3.1.1. coreclkout_hip 7.3.1.2. pld_clk
8. Programming and Testing SR-IOV Bridge MSI Interrupts x
8.1. Setting Up and Verifying MSI Interrupts 8.2. Masking MSI Interrupts 8.3. Dropping a Pending MSI Interrupt
9. Error Handling x
9.1. Physical Layer Errors 9.2. Data Link Layer Errors 9.3. Transaction Layer Errors 9.4. Error Reporting and Data Poisoning 9.5. Uncorrectable and Correctable Error Status Bits
10. IP Core Architecture x
10.1. PCI Express Protocol Stack 10.2. Data Link Layer 10.3. Physical Layer 10.4. Top-Level Interfaces 10.5. Arria® 10 Hard IP for PCI Express with Single-Root I/O Virtualization (SR-IOV)
10.4. Top-Level Interfaces x
10.4.1. Avalon-ST Interface 10.4.2. Clocks and Reset 10.4.3. Interrupts 10.4.4. PIPE
11. Design Implementation x
11.1. Making Pin Assignments to Assign I/O Standard to Serial Data Pins 11.2. Recommended Reset Sequence to Avoid Link Training Issues 11.3. SDC Timing Constraints
12. Debugging x
12.1. Setting Up Simulation 12.2. Simulation Fails To Progress Beyond Polling.Active State 12.3. Hardware Bring-Up Issues 12.4. Link Training 12.5. Creating a Signal Tap Debug File to Match Your Design Hierarchy 12.6. Use Third-Party PCIe Analyzer 12.7. BIOS Enumeration Issues
12.1. Setting Up Simulation x
12.1.1. Changing Between Serial and PIPE Simulation 12.1.2. Using the PIPE Interface for Gen1 and Gen2 Variants 12.1.3. Viewing the Important PIPE Interface Signals 12.1.4. Disabling the Scrambler for Gen1 and Gen2 Simulations 12.1.5. Disabling 8B/10B Encoding and Decoding for Gen1 and Gen2 Simulations
13. Document Revision History x
13.1. Document Revision History for the Arria® 10 Avalon® Streaming with SR-IOV IP for PCIe* User Guide
A. Transaction Layer Packet (TLP) Header Formats x
A.1. TLP Packet Formats without Data Payload A.2. TLP Packet Formats with Data Payload
1. Datasheet
2. Getting Started with the SR-IOV Design Example
3. Parameter Settings
4. Physical Layout
5. Interfaces and Signal Descriptions
6. Registers
7. Reset and Clocks
8. Programming and Testing SR-IOV Bridge MSI Interrupts
9. Error Handling
10. IP Core Architecture
11. Design Implementation
12. Debugging
13. Document Revision History
A. Transaction Layer Packet (TLP) Header Formats
B. Arria® 10 Avalon-ST with SR-IOV Interface for PCIe Solutions User Guide Archive

5.9.1.1. Determine the Pointer Address of an External Capability Register

The next pointer field of the last capability structure within the SR-IOV bridge is set by the External Capability Pointer parameter (refer to Table 3.3). Separate parameters are provided for the PCI Compatible region of the physical function (PF) and virtual function (VF) as well as for the PCIe Extended Capability region to point to the next capability in the user logic for the physical function and virtual function.

You can select an address from the available address space. Refer to Table 6.2 to determine the available address space to implement additional capabilities.

Most of the address space of the first 256 registers has been taken up by capabilities present in the SR-IOV bridge when all optional capabilities are enabled. If you wish to implement new capabilities in the first 256 registers, some of the optional capabilities in the SR-IOV bridge may need to be disabled.

The figure below shows the default link list of the PCI Compatible region inside the SR-IOV bridge core. Capabilities like MSI and MSI-X are optional.

The figure below shows the link list when the MSI capability is disabled. The SR-IOV bridge automatically adjusts its next pointer when you disable any of the optional capabilities.

When the MSI capability is disabled, the address space available from 0x50 to 0x64 can now be used to implement user-specific capabilities using the CEB interface. As shown in the figure above, the last capability in the link is the PCI Express Capability Structure. The external capability pointer parameter will set the NxtPtr field of the PCI Express Capability Structure in this case. If you implement an additional capability at “0x54”, it must set the external capability pointer parameter value to “0x54”. This allows the PCI Express Capability Structure to point to “0x54” instead of the “null pointer”. The link list will appear as shown in the figure below.

The reserve configuration register space 0x0B4:0x0FF can be used to implement additional capabilities as well. If the MSI capability is disabled in the SR-IOV bridge, the user capability can start with address 0x50 or address 0xB4. If you implement an additional capability at “0x50”, it must set the external capability pointer parameter value to “0x50”. This allows the PCIE capability to point to “0x50” instead of the “null pointer”. The link list will appear as shown in the figure below.

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