Visible to Intel only — GUID: hpk1504217461500
Ixiasoft
1. Introduction
2. Quick Start Guide
3. Interface Overview
4. Parameters
5. Designing with the IP Core
6. Block Descriptions
7. Interrupts
8. Registers
9. Testbench and Design Example
10. Document Revision History
A. PCI Express Core Architecture
B. TX Credit Adjustment Sample Code
C. Root Port Enumeration
D. Troubleshooting and Observing the Link Status
1.1. Avalon-ST Interface with Optional SR-IOV for PCIe Introduction
1.2. Features
1.3. Release Information
1.4. Device Family Support
1.5. Recommended Fabric Speed Grades
1.6. Performance and Resource Utilization
1.7. Transceiver Tiles
1.8. PCI Express IP Core Package Layout
1.9. Channel Availability
2.1. Design Components
2.2. Hardware and Software Requirements
2.3. Directory Structure
2.4. Generating the Design Example
2.5. Simulating the Design Example
2.6. Compiling the Design Example and Programming the Device
2.7. Installing the Linux Kernel Driver
2.8. Running the Design Example Application
3.1. Avalon-ST RX Interface
3.2. Avalon-ST TX Interface
3.3. TX Credit Interface
3.4. TX and RX Serial Data
3.5. Clocks
3.6. Function-Level Reset (FLR) Interface
3.7. Control Shadow Interface for SR-IOV
3.8. Configuration Extension Bus Interface
3.9. Hard IP Reconfiguration Interface
3.10. Interrupt Interfaces
3.11. Power Management Interface
3.12. Reset
3.13. Transaction Layer Configuration Interface
3.14. PLL Reconfiguration Interface
3.15. PIPE Interface (Simulation Only)
4.1. Stratix 10 Avalon-ST Settings
4.2. Multifunction and SR-IOV System Settings
4.3. Base Address Registers
4.4. Device Identification Registers
4.5. TPH/ATS Capabilities
4.6. PCI Express and PCI Capabilities Parameters
4.7. Configuration, Debug and Extension Options
4.8. PHY Characteristics
4.9. Example Designs
6.1.1. TLP Header and Data Alignment for the Avalon-ST RX and TX Interfaces
6.1.2. Avalon-ST 256-Bit RX Interface
6.1.3. Avalon-ST 512-Bit RX Interface
6.1.4. Avalon-ST 256-Bit TX Interface
6.1.5. Avalon-ST 512-Bit TX Interface
6.1.6. TX Credit Interface
6.1.7. Interpreting the TX Credit Interface
6.1.8. Clocks
6.1.9. Update Flow Control Timer and Credit Release
6.1.10. Function-Level Reset (FLR) Interface
6.1.11. Resets
6.1.12. Interrupts
6.1.13. Control Shadow Interface for SR-IOV
6.1.14. Transaction Layer Configuration Space Interface
6.1.15. Configuration Extension Bus Interface
6.1.16. Hard IP Status Interface
6.1.17. Hard IP Reconfiguration
6.1.18. Power Management Interface
6.1.19. Serial Data Interface
6.1.20. PIPE Interface
6.1.21. Test Interface
6.1.22. PLL IP Reconfiguration
6.1.23. Message Handling
8.1.1. Register Access Definitions
8.1.2. PCI Configuration Header Registers
8.1.3. PCI Express Capability Structures
8.1.4. Intel Defined VSEC Capability Header
8.1.5. General Purpose Control and Status Register
8.1.6. Uncorrectable Internal Error Status Register
8.1.7. Uncorrectable Internal Error Mask Register
8.1.8. Correctable Internal Error Status Register
8.1.9. Correctable Internal Error Mask Register
8.1.10. SR-IOV Virtualization Extended Capabilities Registers Address Map
8.1.10.1. ARI Enhanced Capability Header
8.1.10.2. SR-IOV Enhanced Capability Registers
8.1.10.3. Initial VFs and Total VFs Registers
8.1.10.4. VF Device ID Register
8.1.10.5. Page Size Registers
8.1.10.6. VF Base Address Registers (BARs) 0-5
8.1.10.7. Secondary PCI Express Extended Capability Header
8.1.10.8. Lane Status Registers
8.1.10.9. Transaction Processing Hints (TPH) Requester Enhanced Capability Header
8.1.10.10. TPH Requester Capability Register
8.1.10.11. TPH Requester Control Register
8.1.10.12. Address Translation Services ATS Enhanced Capability Header
8.1.10.13. ATS Capability Register and ATS Control Register
9.4.1. ebfm_barwr Procedure
9.4.2. ebfm_barwr_imm Procedure
9.4.3. ebfm_barrd_wait Procedure
9.4.4. ebfm_barrd_nowt Procedure
9.4.5. ebfm_cfgwr_imm_wait Procedure
9.4.6. ebfm_cfgwr_imm_nowt Procedure
9.4.7. ebfm_cfgrd_wait Procedure
9.4.8. ebfm_cfgrd_nowt Procedure
9.4.9. BFM Configuration Procedures
9.4.10. BFM Shared Memory Access Procedures
9.4.11. BFM Log and Message Procedures
9.4.12. Verilog HDL Formatting Functions
Visible to Intel only — GUID: hpk1504217461500
Ixiasoft
D.2.1.3.4. ltssm_debug_check
The ltssm_debug_check command returns the current PCIe* link status. It provides general information about the health of the link. Because this command returns real-time data, an unstable link returns different states every time you run it.
% ltssm_debug_check
Sample output:
############################################################# ##### LTSSM Quick Debugs Check Status ##### ############################################################# This PCIe is GEN1X8 Pin_Perstn signal is High SerDes PLL is Locked Link is Up NOT all Channel CDRs are Locked to Data LTSSM FIFO is Full LTSSM FIFO is NOT Empty LTSSM FIFO stored 1024 data Current LTSSM State is 010001 L0