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rte_dma_port_param(3) DPDK rte_dma_port_param(3) NAME rte_dma_port_param SYNOPSIS #include <rte_dmadev.h> Data Fields enum rte_dma_port_type port_type uint64_t reserved [2] uint64_t coreid: 4 uint64_t pfid: 8 uint64_t vfen: 1 uint64_t vfid: 16 uint64_t pasid: 20 uint64_t attr: 3 uint64_t ph: 2 uint64_t st: 16 union { } pcie Detailed Description A structure used to descript DMA access port parameters. See also struct rte_dma_vchan_conf::src_port struct rte_dma_vchan_conf::dst_port Definition at line 498 of file rte_dmadev.h. Field Documentation enum rte_dma_port_type port_type The device access port type. See also enum rte_dma_port_type Definition at line 503 of file rte_dmadev.h. uint64_t coreid PCIe core id used. Definition at line 556 of file rte_dmadev.h. uint64_t pfid PF id used. Definition at line 557 of file rte_dmadev.h. uint64_t vfen VF enable bit. Definition at line 558 of file rte_dmadev.h. uint64_t vfid VF id used. Definition at line 559 of file rte_dmadev.h. uint64_t pasid The pasid filed in TLP packet. Definition at line 561 of file rte_dmadev.h. uint64_t attr The attributes filed in TLP packet. Definition at line 563 of file rte_dmadev.h. uint64_t ph The processing hint filed in TLP packet. Definition at line 565 of file rte_dmadev.h. uint64_t st The steering tag filed in TLP packet. Definition at line 567 of file rte_dmadev.h. __extension__ union { ... } pcie PCIe access port parameters. The following model shows SoC's PCIe module connects to multiple PCIe hosts and multiple endpoints. The PCIe module has an integrated DMA controller. If the DMA wants to access the memory of host A, it can be initiated by PF1 in core0, or by VF0 of PF0 in core0. System Bus | ----------PCIe module---------- | Bus | Interface | ----- ------------------ | | | | PCIe Core0 | | | | | | ----------- | | | | PF-0 -- VF-0 | | Host A | | | |--------| |- VF-1 |--------| Root | | | | | PF-1 | | Complex | | | | | PF-2 | ----------- | | | ------------------ | | | | | | ------------------ | | | | PCIe Core1 | | | | | | ----------- | | | | PF-0 -- VF-0 | | Host B | |-----| |--------| PF-1 -- VF-0 |--------| Root | | | | | |- VF-1 | | Complex | | | | | PF-2 | ----------- | | | ------------------ | | | | | | ------------------ | |DMA| | | ------ | | | | |--------| EP | | | |--------| PCIe Core2 | ------ | | | | | ------ | | | | |--------| EP | | | | | | ------ | ----- ------------------ Note If some fields can not be supported by the hardware/driver, then the driver ignores those fields. Please check driver-specific documentation for limitations and capabilities. uint64_t reserved[2] Reserved for future fields. Definition at line 572 of file rte_dmadev.h. Author Generated automatically by Doxygen for DPDK from the source code. Version 25.11.0 Thu Jun 11 2026 rte_dma_port_param(3)
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