GTS AXI Multichannel DMA IP for PCI Express* User Guide

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ID 847470
Date 8/25/2025
Public
Document Table of Contents
Document Table of Contents x
1. Overview 2. Quick Start Guide 3. Configuring and Generating the GTS AXI Multichannel DMA IP for PCI Express 4. Integrating the IP With Your Application 5. Simulating the IP 6. Validating the IP 7. Known Issues A. Functional Description B. Software Programming Model C. Registers D. Document Revision History for the GTS AXI Multichannel DMA IP for PCI Express*
1. Overview x
1.1. About the GTS AXI Multichannel DMA IP for PCI Express* 1.2. About the Document 1.3. Applications 1.4. Key Concepts 1.5. IP Design Flow 1.6. Design Guidelines 1.7. Design Flow Requirements
1.1. About the GTS AXI Multichannel DMA IP for PCI Express* x
1.1.1. IP Release Information 1.1.2. IP Features 1.1.3. IP High-level Block Diagram 1.1.4. Licensing the IP 1.1.5. Device Family Support 1.1.6. Device Speed Grade Support 1.1.7. Resource Utilization 1.1.8. IP and Design Example Support
1.1.2. IP Features x
1.1.2.1. Root Port Mode Features 1.1.2.2. Endpoint Mode Features
1.2. About the Document x
1.2.1. Target Audience 1.2.2. Conventions Used in the Document 1.2.3. Terminology 1.2.4. Acronyms 1.2.5. Reference Documents and Training
1.4. Key Concepts x
1.4.1. PCI Express and DMA 1.4.2. Altera FPGA IPs for PCI Express and DMA Controller 1.4.3. Example Use Case
1.6. Design Guidelines x
1.6.1. Supporting IPs 1.6.2. Aligning IP Settings with the GTS AXI Streaming IP for PCI Express
1.7. Design Flow Requirements x
1.7.1. Software Requirements 1.7.2. Hardware Requirements 1.7.3. Supported EDA Tools
2. Quick Start Guide x
2.1. Step-by-step IP Bring-up 2.2. Reset Sequence
2.1. Step-by-step IP Bring-up x
2.1.1. Downloading and Installing Quartus® Prime Software 2.1.2. Configuring and Generating the GTS AXI Multichannel DMA IP for PCI Express 2.1.3. Configuring and Generating the GTS AXI Streaming IP for PCI Express 2.1.4. Configuring and Generating the GTS System PLL Clocks IP 2.1.5. Configuring and Generating the GTS Reset Sequencer IP 2.1.6. Configuring and Generating the Reset Release IP 2.1.7. Instantiating and Connecting the IP Interfaces 2.1.8. Simulate, Compile and Validate the Design on Hardware
2.2. Reset Sequence x
2.2.1. Cold Reset Sequence Triggered by PERST# Signal 2.2.2. Warm Reset Sequence Triggered by Hot Reset 2.2.3. Cold Reset Triggered by User 2.2.4. Warm Reset Triggered by User
3. Configuring and Generating the GTS AXI Multichannel DMA IP for PCI Express x
3.1. Creating the Quartus® Prime Project 3.2. Configuring the GTS AXI Multichannel DMA IP for PCI Express 3.3. Generating HDL for Simulation and Synthesis 3.4. Generating the Design Example 3.5. Compiling the Design Example
3.2. Configuring the GTS AXI Multichannel DMA IP for PCI Express x
3.2.1. IP Settings 3.2.2. PCIe Settings
3.2.2. PCIe Settings x
3.2.2.1. MCDMA Settings 3.2.2.2. PCI Express / PCI Capabilities 3.2.2.3. Base Address Registers
3.2.2.1. MCDMA Settings x
3.2.2.1.1. Multichannel DMA Mode 3.2.2.1.2. Bursting Master Mode 3.2.2.1.3. Bursting Slave Mode 3.2.2.1.4. BAM + BAS Mode 3.2.2.1.5. BAM + MCDMA Mode 3.2.2.1.6. BAM + BAS + MCDMA Mode
3.2.2.2. PCI Express / PCI Capabilities x
3.2.2.2.1. PCIe Device 3.2.2.2.2. PCIe MSI-X
3.2.2.2.2. PCIe MSI-X x
3.2.2.2.2.1. PCIe PF MSI-X 3.2.2.2.2.2. PCIe VF MSI-X
3.3. Generating HDL for Simulation and Synthesis x
3.3.1. IP Core Generation Output
4. Integrating the IP With Your Application x
4.1. Overview 4.2. Implementing Required Clocking 4.3. Implementing Required Resets 4.4. Connecting the GTS AXI Streaming IP-Facing Interfaces 4.5. Connect User Logic-Facing Interfaces
4.4. Connecting the GTS AXI Streaming IP-Facing Interfaces x
4.4.1. PCIe AXI-Stream TX Interface (ss_tx_st) 4.4.2. PCIe AXI-Stream RX Interface (ss_rx_st) 4.4.3. Control and Status Register Interface (ss_csr_lite) 4.4.4. Transmit Flow Control Credit Interface (ss_txcrdt) 4.4.5. Configuration Intercept Interface (CII) 4.4.6. Completion Timeout Interface (ss_cplto) 4.4.7. Function Level Reset (FLR) Interface 4.4.8. Control Shadow Interface (ss_ctrlshadow) 4.4.9. Error Interface
4.4.5. Configuration Intercept Interface (CII) x
4.4.5.1. Configuration Intercept Request Interface (ss_cii_req) 4.4.5.2. Configuration Intercept Response Interface (ss_cii_resp)
4.4.7. Function Level Reset (FLR) Interface x
4.4.7.1. FLR Received Interface (ss_flrrcvd) 4.4.7.2. FLR Completion Interface (ss_flrcmpl)
4.5. Connect User Logic-Facing Interfaces x
4.5.1. H2D AXI-Stream Manager (h2d_st_initatr) 4.5.2. D2H AXI-Stream Subordinate (d2h_st_respndr) 4.5.3. H2D/D2H AXI-MM Manager (dma_mm_initatr) 4.5.4. BAM AXI-MM Manager (bam_mm_initatr) 4.5.5. BAS AXI-MM Subordinate (bas_mm_respndr) 4.5.6. PIO AXI-Lite Manager (pio_lite_initiatr) 4.5.7. HIP Reconfiguration AXI-Lite Subordinate (user_csr_lite) 4.5.8. User Event MSI-X (user_msix) 4.5.9. User Event MSI (user_msi) 4.5.10. User Function Level Reset (user_flr) 4.5.11. User Configuration Intercept Interface 4.5.12. Configuration Slave (cs_lite_respndr)
4.5.11. User Configuration Intercept Interface x
4.5.11.1. User Configuration Intercept Request Interface (user_cii_req) 4.5.11.2. User Configuration Intercept Response Interface (user_cii_resp)
5. Simulating the IP x
5.1. Design Example Overview 5.2. Simulating the Design Example
5.1. Design Example Overview x
5.1.1. AXI-S Device-side Packet Loopback Design Example 5.1.2. AXI-S Packet Generate/Check Design Example 5.1.3. AXI-MM Traffic Generator/Checker Design Example 5.1.4. AXI-MM BAM EP Memory Design Example
5.1.3. AXI-MM Traffic Generator/Checker Design Example x
5.1.3.1. AXI-MM Traffic Generator/Checker Design Example Register Map
6. Validating the IP x
6.1. Driver Support for MCDMA Design Examples 6.2. Hardware and Software Requirements 6.3. Running the Design Example Application on a Hardware Setup
6.3. Running the Design Example Application on a Hardware Setup x
6.3.1. Program the FPGA 6.3.2. Configuration Changes from BIOS 6.3.3. Installing the Required Kernel Version (if Working with Ubuntu 24.04) 6.3.4. Set the Boot Parameters 6.3.5. Custom Driver 6.3.6. DPDK Poll Mode Driver
6.3.5. Custom Driver x
6.3.5.1. Prerequisites 6.3.5.2. PIO Test 6.3.5.3. Custom PIO Read Write Test 6.3.5.4. DMA Test 6.3.5.5. BAM Test 6.3.5.6. BAS Test
6.3.5.1. Prerequisites x
6.3.5.1.1. Install the Linux Kernel Driver 6.3.5.1.2. Enable Virtual Function 6.3.5.1.3. Build and Install User Space Library 6.3.5.1.4. Build the Reference Application
6.3.5.4. DMA Test x
6.3.5.4.1. AXI-S Device-side Packet Loopback (Device-side Packet Loopback) 6.3.5.4.2. AXI-S Packet Generate/Check
6.3.6. DPDK Poll Mode Driver x
6.3.6.1. Prerequisites 6.3.6.2. PIO Test 6.3.6.3. DMA Test 6.3.6.4. BAM Test 6.3.6.5. BAS Test
6.3.6.1. Prerequisites x
6.3.6.1.1. Install PMD Driver 6.3.6.1.2. Bind the Device 6.3.6.1.3. Enable Virtual Function
6.3.6.3. DMA Test x
6.3.6.3.1. Device-side Packet Loopback 6.3.6.3.2. AXI-MM DMA 6.3.6.3.3. AXI-S Packet Generate/Check
A. Functional Description x
A.1. High-level Functional Overview
A.1. High-level Functional Overview x
A.1.1. Multichannel DMA A.1.2. Bursting Master (BAM) A.1.3. Bursting Slave (BAS) A.1.4. MSI Interrupt A.1.5. Configuration Slave (CS) A.1.6. Root Port Address Translation Table Enablement A.1.7. Control and Status Register Interface A.1.8. Configuration Intercept Interface
A.1.1. Multichannel DMA x
A.1.1.1. H2D Data Mover A.1.1.2. D2H Data Mover A.1.1.3. Descriptors A.1.1.4. AXI4-Lite PIO Manager A.1.1.5. AXI-MM Write (H2D) and Read (D2H) Manager A.1.1.6. AXI-Stream Manager (H2D) and Subordinate (D2H) A.1.1.7. User MSI-X A.1.1.8. User Function Level Reset (FLR) A.1.1.9. Control and Status Registers
A.1.1.2. D2H Data Mover x
A.1.1.2.1. D2H Descriptor Fetch
A.1.1.3. Descriptors x
A.1.1.3.1. Support for Unaligned (or Byte-Aligned) Data Transfer A.1.1.3.2. Metadata Support A.1.1.3.3. MSI-X/Writeback
A.1.4. MSI Interrupt x
A.1.4.1. Endpoint MSI Support Through BAS A.1.4.2. MSI Interrupt Controller
A.1.5. Configuration Slave (CS) x
A.1.5.1. 14-bit AXI-MM Address Format A.1.5.2. Configuration Access Mechanism
B. Software Programming Model x
B.1. GTS AXI MCDMA IP Custom Driver B.2. GTS AXI MCDMA IP DPDK Poll Mode-Based Driver
B.1. GTS AXI MCDMA IP Custom Driver x
B.1.1. Architecture B.1.2. libmqdma library details B.1.3. Application B.1.4. Software Flow B.1.5. API Flow B.1.6. libmqdma Library API List B.1.7. Request Structures
B.1.2. libmqdma library details x
B.1.2.1. Channel Initialization B.1.2.2. Descriptor Memory Management B.1.2.3. Descriptor Completion Status Update
B.1.5. API Flow x
B.1.5.1. Single Descriptor Load and Submit B.1.5.2. Multiple-Descriptor Load and Submit
B.1.6. libmqdma Library API List x
B.1.6.1. ifc_api_start B.1.6.2. ifc_mcdma_port_by_name B.1.6.3. ifc_qdma_device_get B.1.6.4. ifc_num_channels_get B.1.6.5. ifc_qdma_channel_get B.1.6.6. ifc_qdma_acquire_channels B.1.6.7. ifc_qdma_release_all_channels B.1.6.8. ifc_qdma_device_put B.1.6.9. ifc_qdma_channel_put B.1.6.10. ifc_qdma_completion_poll B.1.6.11. ifc_qdma_request_start B.1.6.12. ifc_qdma_request_prepare B.1.6.13. ifc_qdma_descq_queue_batch_load B.1.6.14. ifc_qdma_request_submit B.1.6.15. ifc_qdma_pio_read32 B.1.6.16. ifc_qdma_pio_write32 B.1.6.17. ifc_qdma_pio_read64 B.1.6.18. ifc_qdma_pio_write64 B.1.6.19. ifc_qdma_pio_read128 B.1.6.20. ifc_qdma_pio_write128 B.1.6.21. ifc_qdma_pio_read256 B.1.6.22. ifc_qdma_pio_write256 B.1.6.23. ifc_request_malloc B.1.6.24. ifc_request_free B.1.6.25. ifc_app_stop B.1.6.26. ifc_qdma_poll_init B.1.6.27. ifc_qdma_poll_add B.1.6.28. ifc_qdma_poll_wait B.1.6.29. ifc_mcdma_port_by_name
B.2. GTS AXI MCDMA IP DPDK Poll Mode-Based Driver x
B.2.1. Architecture B.2.2. GTS AXI MCDMA Poll Mode Driver B.2.3. DPDK based application B.2.4. Request Structures B.2.5. Software Flow B.2.6. API Flow B.2.7. API List
B.2.2. GTS AXI MCDMA Poll Mode Driver x
B.2.2.1. Completion Status Update B.2.2.2. Metadata Support B.2.2.3. User MSI-X
C. Registers x
C.1. Queue Control C.2. MSI-X Memory Space C.3. Control Register (GCSR)
1. Overview
2. Quick Start Guide
3. Configuring and Generating the GTS AXI Multichannel DMA IP for PCI Express
4. Integrating the IP With Your Application
5. Simulating the IP
6. Validating the IP
7. Known Issues
A. Functional Description
B. Software Programming Model
C. Registers
D. Document Revision History for the GTS AXI Multichannel DMA IP for PCI Express*

4.5.6. PIO AXI-Lite Manager (pio_lite_initiatr)

The AXI4-Lite PIO Manager is present only if you select the Multi Channel DMA User Mode for MCDMA Settings in the IP Parameter Editor. The AXI4-Lite PIO Manager is always present irrespective of the user interface type (AXI-S/AXI-MM) that you select. This interface should be connected to the corresponding AXI-MM Subordinate Interface of the application logic.

Interface clock: axi_lite_clk

Table 50.  PIO AXI-Lite Manager Interface
Signal Name Direction Description
Write Address Channel
rx_pio_axi_lite_awvalid Output

Write address valid.
rx_pio_axi_lite_awready Input

Write address ready.

This signal indicates that the subordinate is ready to accept an address.
rx_pio_axi_lite_awaddr[n:0] Output

Write address.

The write address gives the address of the first transfer in a write burst transaction.

Refer to the AXI4-Lite PIO Manager address mapping section for more information on the actual address width.
rx_pio_axi_lite_awprot[2:0] Input

Protection type.

This interface does not use protection attributes.
Write Data Channel
rx_pio_axi_lite_wvalid Output

Write Data Valid.
rx_pio_axi_lite_wready Input

Write Data Ready.

This signal indicates that the subordinate is ready to accept data.
rx_pio_axi_lite_wdata[63:0] Output Write data.
rx_pio_axi_lite_wstrb[7:0] Output

Write strobes.

This signal indicates which byte lanes hold valid data.
Write Response Channel
rx_pio_axi_lite_bvalid Input

Indicates that the write response channel signals are valid.
rx_pio_axi_lite_bready Output

Indicates that a transfer on the write response channel can be accepted.
rx_pio_axi_lite_bresp[1:0] Input

Write Response.

Indicates the status of a write transaction.
Read Address Channel
rx_pio_axi_lite_arvalid Output This signal indicates that the read address channel signals are valid.
rx_pio_axi_lite_arready Input This signal indicates that a transfer on the read address channel can be accepted.
rx_pio_axi_lite_araddr[n:0] Output The address of the first transfer in a read transaction.

Refer to the AXI4-Lite PIO Manager address mapping section for more information on the actual address width.
rx_pio_axi_lite_arprot[2:0] Output

Protection type.

This interface does not use protection attributes.
Read Data Channel
rx_pio_axi_lite_rvalid Input

Read data valid.
rx_pio_axi_lite_rready Output

This signal indicates that the manager is ready to accept the read data.
rx_pio_axi_lite_rdata[63:0] Input Read Data.
rx_pio_axi_lite_rresp[1:0] Input

Read response.

This signal indicates the status of the read transfer. EXOKAY is not supported.
Level Two Title