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

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ID 683686
Date 1/11/2022
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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. Programming and Testing SR-IOV Bridge MSI Interrupts 8. Error Handling 9. IP Core Architecture 10. Design Implementation 11. Debugging 12. Document Revision History A. Transaction Layer Packet (TLP) Header Formats B. Intel® Arria® 10 Avalon-ST with SR-IOV Interface for PCIe Solutions User Guide Archive
1. Datasheet x
1.1. Intel® 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. Intel® 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 Intel® 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. Intel® Arria® 10 Avalon-ST Settings 3.3. Intel® Arria® 10 SR-IOV System Settings 3.4. Base Address Register (BAR) Settings 3.5. SR-IOV Device Identification Registers 3.6. Intel® 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 Intel® Cyclone® 10 GX Devices 4.2. Hard IP Block Placement In Intel® 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. Intel® 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. Programming and Testing SR-IOV Bridge MSI Interrupts x
7.1. Setting Up and Verifying MSI Interrupts 7.2. Masking MSI Interrupts 7.3. Dropping a Pending MSI Interrupt
8. Error Handling x
8.1. Physical Layer Errors 8.2. Data Link Layer Errors 8.3. Transaction Layer Errors 8.4. Error Reporting and Data Poisoning 8.5. Uncorrectable and Correctable Error Status Bits
9. IP Core Architecture x
9.1. PCI Express Protocol Stack 9.2. Data Link Layer 9.3. Physical Layer 9.4. Top-Level Interfaces 9.5. Intel® Arria® 10 Hard IP for PCI Express with Single-Root I/O Virtualization (SR-IOV)
9.4. Top-Level Interfaces x
9.4.1. Avalon-ST Interface 9.4.2. Clocks and Reset 9.4.3. Interrupts 9.4.4. PIPE
10. Design Implementation x
10.1. Making Pin Assignments to Assign I/O Standard to Serial Data Pins 10.2. Recommended Reset Sequence to Avoid Link Training Issues 10.3. SDC Timing Constraints
11. Debugging x
11.1. Setting Up Simulation 11.2. Simulation Fails To Progress Beyond Polling.Active State 11.3. Hardware Bring-Up Issues 11.4. Link Training 11.5. Creating a Signal Tap Debug File to Match Your Design Hierarchy 11.6. Use Third-Party PCIe Analyzer 11.7. BIOS Enumeration Issues
11.1. Setting Up Simulation x
11.1.1. Changing Between Serial and PIPE Simulation 11.1.2. Using the PIPE Interface for Gen1 and Gen2 Variants 11.1.3. Viewing the Important PIPE Interface Signals 11.1.4. Disabling the Scrambler for Gen1 and Gen2 Simulations 11.1.5. Disabling 8B/10B Encoding and Decoding for Gen1 and Gen2 Simulations
12. Document Revision History x
12.1. Document Revision History for the Intel® 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. Programming and Testing SR-IOV Bridge MSI Interrupts
8. Error Handling
9. IP Core Architecture
10. Design Implementation
11. Debugging
12. Document Revision History
A. Transaction Layer Packet (TLP) Header Formats
B. Intel® Arria® 10 Avalon-ST with SR-IOV Interface for PCIe Solutions User Guide Archive

1.1. Intel® Arria® 10 Avalon® -ST Interface with SR-IOV for PCI Express* Datasheet

Intel® Arria® 10 FPGAs include a configurable, hardened protocol stack for PCI Express* that is compliant with PCI Express Base Specification 2.1 or 3.0. The Intel® Arria® 10 Hard IP for PCI Express* with Single Root I/O Virtualization (SR-IOV) IP core consists of this hardened protocol stack and the SR-IOV soft logic. The SR-IOV soft logic uses the Configuration Space Bypass mode of the Hard IP to bypass the internal configuration block and BAR matching logic. These functions are implemented in external soft logic. Soft logic in the SR-IOV Bridge also implements interrupts and error reporting.

The SR-IOV Bridge was redesigned to support up to 8 Physical Functions (PFs) and 2048 Virtual Functions (VFs). The SR-IOV bridge also supports the Address Translation Services (ATS) and TLP Processing Hints (TPH) capabilities.

Figure 1.  Intel® Arria® 10 PCIe Variant with SR-IOVThe following figure shows the high-level modules and connecting interfaces for this variant.
Figure 2.  Intel® Arria® 10 PCIe Variant with SR-IOVThe following figure provides the next level of detail for the modules that comprise the SR-IOV Bridge.
Table 2.  PCI Express Data Throughput

The following table shows the aggregate bandwidth of a PCI Express link for Gen2 and Gen3 for supported link widths. The protocol specifies 2.5 giga-transfers per second for Gen1, 5.0 giga-transfers per second for Gen2, and 8.0 giga‑transfers per second for Gen3. This table provides bandwidths for a single transmit (TX) or receive (RX) channel. The numbers double for duplex operation. Gen1 and Gen2 use 8B/10B encoding which introduces a 20% overhead. In contrast, Gen3 uses 128b/130b encoding which reduces the data throughput lost to encoding to about 1.5%.

Link Width
×4 ×8

PCI Express Gen2 (5.0 Gbps) - 256-bit interface

N/A 32

PCI Express Gen3 (8.0 Gbps) - 256-bit interface

31.51 63

Section Content
SR-IOV Features

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