Multi Channel DMA Intel® FPGA IP for PCI Express User Guide

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ID 683821
Date 4/20/2022
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Document Table of Contents
Document Table of Contents x
1. Before You Begin 2. Introduction 3. Functional Description 4. Interface Overview 5. Parameters (H-Tile) 6. Parameters (P-Tile and F-Tile) 7. Designing with the IP Core 8. Software Programming Model 9. Registers 10. Troubleshooting/Debugging 11. Multi Channel DMA Intel FPGA IP for PCI Express User Guide Archives 12. Revision History for Multi Channel DMA Intel FPGA IP for PCI Express User Guide
1. Before You Begin x
1.1. Terms and Acronyms 1.2. Known Issues
2. Introduction x
2.1. Multi Channel DMA IP for PCI Express Features 2.2. Device Family Support 2.3. Recommended Speed Grades 2.4. Resource Utilization 2.5. Release Information
2.1. Multi Channel DMA IP for PCI Express Features x
2.1.1. Endpoint Mode 2.1.2. Root Port Mode
3. Functional Description x
3.1. Multi Channel DMA 3.2. Bursting Avalon-MM Master (BAM) 3.3. Bursting Avalon-MM Slave (BAS) 3.4. Config Slave 3.5. Hard IP Reconfiguration Interface 3.6. Config TL Interface 3.7. Configuration Intercept Interface (EP Only) 3.8. Data Mover Only
3.1. Multi Channel DMA x
3.1.1. H2D Data Mover 3.1.2. D2H Data Mover 3.1.3. Descriptors 3.1.4. Avalon-MM PIO Master 3.1.5. Avalon-MM Write (H2D) and Read (D2H) Master 3.1.6. Avalon-ST Source (H2D) and Sink (D2H) 3.1.7. User MSI-X 3.1.8. User Functional Level Reset (FLR) 3.1.9. Control Registers
3.1.2. D2H Data Mover x
3.1.2.1. D2H Descriptor Fetch
3.1.3. Descriptors x
3.1.3.1. Metadata Support 3.1.3.2. MSI-X/Writeback
3.1.6. Avalon-ST Source (H2D) and Sink (D2H) x
3.1.6.1. Avalon-ST 4-Port mode 3.1.6.2. Avalon-ST 1-Port Mode 3.1.6.3. Packet (File) Boundary 3.1.6.4. Metadata
3.8. Data Mover Only x
3.8.1. H2D Data Mover 3.8.2. D2H Data Mover 3.8.3. Application Specific Bits
3.8.1. H2D Data Mover x
3.8.1.1. H2D Descriptor Format (h2ddm_desc) 3.8.1.2. H2D Descriptor Completion Packet Format (h2ddm_desc_cmpl) 3.8.1.3. H2D Descriptor Status (h2ddm_desc_status)
3.8.2. D2H Data Mover x
3.8.2.1. D2H Descriptor Format (d2hdm_desc) 3.8.2.2. D2H Descriptor Status (d2hdm_desc_status)
4. Interface Overview x
4.1. Port List 4.2. Clocks 4.3. Resets 4.4. Multi Channel DMA 4.5. Bursting Avalon-MM Master (BAM) Interface 4.6. Bursting Avalon-MM Slave (BAS) Interface 4.7. Config Slave Interface (RP only) 4.8. Hard IP Reconfiguration Interface 4.9. Config TL Interface 4.10. Configuration Intercept Interface (EP Only) 4.11. User Functional Level Reset (FLR) 4.12. User Event MSI-X Request Interface 4.13. Data Mover Interface 4.14. Hard IP Status Interface
4.1. Port List x
4.1.1. Port List (H-Tile) 4.1.2. Port List (P-Tile and F-Tile)
4.4. Multi Channel DMA x
4.4.1. Avalon-MM PIO Master 4.4.2. Avalon-MM Write Master (H2D) 4.4.3. Avalon-MM Read Master (D2H) 4.4.4. Avalon-ST Source (H2D) 4.4.5. Avalon-ST Sink (D2H) 4.4.6. User MSI-X Interface 4.4.7. User FLR Interface
4.13. Data Mover Interface x
4.13.1. H2D Data Mover Interface 4.13.2. D2H Data Mover Interface
5. Parameters (H-Tile) x
5.1. IP Settings 5.2. Example Designs
5.1. IP Settings x
5.1.1. System Settings 5.1.2. MCDMA Settings 5.1.3. Device Identification Registers 5.1.4. Multifunction and SR-IOV System Settings Parameters [Endpoint Mode] 5.1.5. Configuration, Debug and Extension Options 5.1.6. PHY Characteristics 5.1.7. PCI Express / PCI Capabilities Parameters
5.1.7. PCI Express / PCI Capabilities Parameters x
5.1.7.1. Device 5.1.7.2. Link 5.1.7.3. MSI-X 5.1.7.4. Power Management 5.1.7.5. Vendor Specific Extended Capability (VSEC)
6. Parameters (P-Tile and F-Tile) x
6.1. IP Settings 6.2. PCIe0 Settings 6.3. Example Designs
6.1. IP Settings x
6.1.1. Top-Level Settings
6.2. PCIe0 Settings x
6.2.1. Base Address Register 6.2.2. PCIe0 Configuration, Debug and Extension Options 6.2.3. PCIe0 Device Identification Registers 6.2.4. PCIe0 PCI Express / PCI Capabilities Parameters 6.2.5. MCDMA Settings
6.2.3. PCIe0 Device Identification Registers x
6.2.3.1. PCIe0 PF0 IDs 6.2.3.2. PCIe0 PF0 VF IDs
6.2.4. PCIe0 PCI Express / PCI Capabilities Parameters x
6.2.4.1. PCIe0 Device 6.2.4.2. PCIe0 Link 6.2.4.3. PCIe0 MSI-X 6.2.4.4. PCIe0 DEV SER 6.2.4.5. PCIe0 PRS 6.2.4.6. PCIe0 ACS Capabilities 6.2.4.7. PCIe0 ATS 6.2.4.8. PCIe0 TPH
6.2.4.6. PCIe0 ACS Capabilities x
6.2.4.6.1. PCIe0 ACS for Physical Functions 6.2.4.6.2. PCIe0 ACS for Virtual Functions
6.2.4.7. PCIe0 ATS x
6.2.4.7.1. PCIe0 ATS for Physical Functions 6.2.4.7.2. PCIe0 ATS for Virtual Functions
6.2.4.8. PCIe0 TPH x
6.2.4.8.1. PCIe0 TPH for Physical Functions 6.2.4.8.2. PCIe0 TPH for Virtual Functions
7. Designing with the IP Core x
7.1. Generating the IP Core 7.2. Simulating the IP Core 7.3. IP Core Generation Output - Intel® Quartus® Prime Pro Edition 7.4. Systems Integration and Implementation
7.4. Systems Integration and Implementation x
7.4.1. Required Supporting IP
8. Software Programming Model x
8.1. Multi Channel DMA IP Custom Driver 8.2. Multi Channel DMA IP DPDK Poll-Mode based Driver 8.3. Multi Channel DMA IP Kernel Mode Character Device Driver 8.4. Multi Channel DMA IP Kernel Mode Network Device Driver
8.1. Multi Channel DMA IP Custom Driver x
8.1.1. Architecture 8.1.2. libmqdma library details 8.1.3. Application 8.1.4. Software Flow 8.1.5. API Flow 8.1.6. libmqdma Library API List 8.1.7. Request Structures
8.1.2. libmqdma library details x
8.1.2.1. Channel Initialization 8.1.2.2. Descriptor Memory Management 8.1.2.3. Descriptor Completion Status Update
8.1.5. API Flow x
8.1.5.1. Single Descriptor Load and Submit 8.1.5.2. Multiple Descriptor Load and Submit
8.1.6. libmqdma Library API List x
8.1.6.1. ifc_api_start 8.1.6.2. ifc_mcdma_port_by_name 8.1.6.3. ifc_qdma_device_get 8.1.6.4. ifc_num_channels_get 8.1.6.5. ifc_qdma_channel_get 8.1.6.6. ifc_qdma_acquire_channels 8.1.6.7. ifc_qdma_release_all_channels 8.1.6.8. ifc_qdma_device_put 8.1.6.9. ifc_qdma_channel_put 8.1.6.10. ifc_qdma_completion_poll 8.1.6.11. ifc_qdma_request_start 8.1.6.12. ifc_qdma_request_prepare 8.1.6.13. ifc_qdma_descq_queue_batch_load 8.1.6.14. ifc_qdma_request_submit 8.1.6.15. ifc_qdma_pio_read32 8.1.6.16. ifc_qdma_pio_write32 8.1.6.17. ifc_qdma_pio_read64 8.1.6.18. ifc_qdma_pio_write64 8.1.6.19. ifc_qdma_pio_read128 8.1.6.20. ifc_qdma_pio_write128 8.1.6.21. ifc_qdma_pio_read256 8.1.6.22. ifc_qdma_pio_write256 8.1.6.23. ifc_request_malloc 8.1.6.24. ifc_request_free 8.1.6.25. ifc_app_stop 8.1.6.26. ifc_qdma_poll_init 8.1.6.27. ifc_qdma_poll_add 8.1.6.28. ifc_qdma_poll_wait 8.1.6.29. ifc_mcdma_port_by_name
8.2. Multi Channel DMA IP DPDK Poll-Mode based Driver x
8.2.1. Architecture 8.2.2. MCDMA Poll Mode Driver 8.2.3. DPDK based application 8.2.4. Request Structures 8.2.5. Software Flow 8.2.6. API Flow 8.2.7. API List
8.2.2. MCDMA Poll Mode Driver x
8.2.2.1. Completion Status Update 8.2.2.2. Metadata Support 8.2.2.3. User MSI-X
8.3. Multi Channel DMA IP Kernel Mode Character Device Driver x
8.3.1. Architecture 8.3.2. libmcmem Library Information 8.3.3. Kernel Driver Information 8.3.4. Control Message Structure 8.3.5. Software Flow 8.3.6. API Flow 8.3.7. API List
8.3.3. Kernel Driver Information x
8.3.3.1. Device Management 8.3.3.2. Channel Management 8.3.3.3. Completions Management
8.3.3.3. Completions Management x
8.3.3.3.1. Interrupt Mode 8.3.3.3.2. Poll Mode
8.4. Multi Channel DMA IP Kernel Mode Network Device Driver x
8.4.1. Architecture 8.4.2. Driver Information 8.4.3. Software Flow
8.4.2. Driver Information x
8.4.2.1. Device Management 8.4.2.2. Channel Management 8.4.2.3. Descriptor Memory Management 8.4.2.4. Completions Management 8.4.2.5. ethtool support 8.4.2.6. debugfs support 8.4.2.7. SRIOV Support
8.4.3. Software Flow x
8.4.3.1. Host to Device Flow 8.4.3.2. Device to Host Flow
9. Registers x
9.1. Queue Control (QCSR) 9.2. MSI-X Memory Space 9.3. Control Register (GCSR)
10. Troubleshooting/Debugging x
10.1. Debug Toolkit
10.1. Debug Toolkit x
10.1.1. Overview 10.1.2. Enabling the P-Tile Debug Toolkit 10.1.3. Launching the P-Tile Debug Toolkit 10.1.4. Using the P-Tile Debug Toolkit
10.1.4. Using the P-Tile Debug Toolkit x
10.1.4.1. Main View 10.1.4.2. Toolkit Parameters P-Tile Information Event Counter P0/P1 Configuration Space 10.1.4.3. Channel Parameters 10.1.4.4. Eye Viewer
1. Before You Begin
2. Introduction
3. Functional Description
4. Interface Overview
5. Parameters (H-Tile)
6. Parameters (P-Tile and F-Tile)
7. Designing with the IP Core
8. Software Programming Model
9. Registers
10. Troubleshooting/Debugging
11. Multi Channel DMA Intel FPGA IP for PCI Express User Guide Archives
12. Revision History for Multi Channel DMA Intel FPGA IP for PCI Express User Guide

10.1.4.2. Toolkit Parameters

The Toolkit parameters window has the following sub-tabs.

P-Tile Information

This lists a summary of the P-Tile PCIe IP parameter settings in the PCIe IP Parameter Editor when the IP was generated, as read by the P-Tile Debug Toolkit when initialized. If you have port bifurcation enabled in your design (for example, x8x8), then this tab will populate the P-Tile information for each core (P0 core, P1 core, etc.).

All the information is read-only.

Use the Refresh button to read the settings.

Table 163.  P-Tile Available Parameter Settings
Parameter Values Descriptions
Intel Vendor ID 1172 Indicates the Vendor ID as set in the IP Parameter Editor.
Device ID 0 This is a unique identifier for the device that is assigned by the vendor.
Protocol PCIe Indicates the Protocol.
Port Type Root Port, Endpoint 1 Indicates the Hard IP Port type.
Intel IP Type intel_pcie_mcdma Indicates the IP type used.
Advertised speed Gen3, Gen4 Indicates the advertised speed as configured in the IP Parameter Editor.
Advertised width x16, x8 Indicates the advertised width as configured in the IP Parameter Editor.
Negotiated speed Gen3, Gen4 Indicates the negotiated speed during link training.
Negotiated width x16, x8 Indicates the negotiated link width during link training.
Link status Link up, link down Indicates if the link (DL) is up or not.
LTSSM State Refer to the F-Tile Avalon Streaming Intel FPGA IP for PCI Express User Guide Indicates the current state of the link.
Lane Reversal True, False Indicates if lane reversal happens on the link.
Retimer 1 Detected, not detected Indicates if a retimer was detected between the Root Port and the Endpoint.
Retimer 2 Detected, not detected Indicates if a retimer was detected between the Root Port and the Endpoint.
Tx TLP Sequence Number Hexadecimal value Indicates the next transmit sequence number for the transmit TLP.
Tx Ack Sequence Timeout Hexadecimal value Indicates the ACK sequence number which is updated by receiving ACK/NAK DLLP.
Replay Timer Timeout Green, Red

Green: no timeout

Red: timeout
Malformed TLP Status Green, Red

Green: no malformed TLP

Red: malformed TLP detected
First Malformed TLP Error Pointer
  • AtomicOp address alignment
  • AtomicOp operand
  • AtomicOp byte enable
  • TLP length mismatch
  • Max payload size
  • Message TLP without TC0
  • Invalid TC
  • Unexpected route bit in Message TLP
  • Unexpected CRS status in Completion TLP
  • Byte enable
  • Memory address 4KB boundary
  • TLP prefix rules
  • Translation request rules
  • Invalid TLP type
  • Completion rules
  • Application
  
Figure 55. Example of P-Tile Parameter Settings

Event Counter

This tab allows you to read the error events like the number of receiver errors, framing errors, etc. for each port. You can use the Clear P0 counter/Clear P1 counter to reset the error counter.

Figure 56. Example of P-Tile Event Counter Tab

P0/P1 Configuration Space

This tab allows you to read the configuration space registers for that port. You will see a separate tab with the configuration space for each port.

Figure 57. Example of P-Tile PCIe Configuration Settings
1 The current version of Intel® Quartus® Prime supports enabling the Debug Toolkit for Endpoint mode only, and for the Linux and Windows operating systems only.
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