Visible to Intel only — GUID: gtx1620097068715
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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. MSI Interface
4.8. Config Slave Interface (RP only)
4.9. Hard IP Reconfiguration Interface
4.10. Config TL Interface
4.11. Configuration Intercept Interface (EP Only)
4.12. Data Mover Interface
4.13. Hard IP Status 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
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
Visible to Intel only — GUID: gtx1620097068715
Ixiasoft
8.1.6.6. ifc_qdma_acquire_channels
ifc_qdma_acquire_channels
API | API Description | Input Parameters | Return Values |
---|---|---|---|
int ifc_qdma_acquire_channels(struct ifc_qdma_device *qdev,int num) | This API acquires n number of channels from hardware. Once the channels acquired, user must call ifc_qdma_channel_get() to initialize the channels and use for DMA. |
qdev: QDMA device num: Number of channels requested |
Number of channels acquired successfully. negative otherwise |