Multi Channel DMA Intel® FPGA IP for PCI Express* User Guide
ID
683821
Date
1/27/2025
Public
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1. Before You Begin
2. Introduction
3. Functional Description
4. Interface Overview
5. Parameters (H-Tile)
6. Parameters (P-Tile) (F-Tile) (R-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 the Multi Channel DMA Intel FPGA IP for PCI Express User Guide
3.1. Multi Channel DMA
3.2. Bursting Avalon-MM Master (BAM)
3.3. Bursting Avalon-MM Slave (BAS)
3.4. MSI Interrupt
3.5. Config Slave (CS)
3.6. Root Port Address Translation Table Enablement
3.7. Hard IP Reconfiguration Interface
3.8. Config TL Interface
3.9. Configuration Intercept Interface (EP Only)
3.10. Data Mover Only
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. Legacy Interrupt Interface
4.8. MSI Interface
4.9. Config Slave Interface (RP only)
4.10. Hard IP Reconfiguration Interface
4.11. Config TL Interface
4.12. Configuration Intercept Interface (EP Only)
4.13. Data Mover Interface
4.14. Hard IP Status Interface
4.15. Precision Time Management (PTM) Interface
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
3.8. Config TL Interface
The Config TL interface extracts the required information stored in the PCIe Hard IP config space in order for the DMA to operate properly. Some of the example includes MPS, MRRS, and Bus Master Enable.
The configuration register extraction only occurs periodically, so the assumption is made that these are fairly static signals and there are significant delays after the config space is updated by software.
Note: MCDMA R-Tile IP does not support Config TL interface. The CII interface should be used as a replacement for similar functionality.