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rte_dma_info(3) DPDK rte_dma_info(3) NAME rte_dma_info SYNOPSIS #include <rte_dmadev.h> Data Fields const char * dev_name uint64_t dev_capa uint16_t max_vchans uint16_t max_desc uint16_t min_desc uint16_t max_sges int16_t numa_node uint16_t nb_vchans uint16_t nb_priorities Detailed Description A structure used to retrieve the information of a DMA device. See also rte_dma_info_get Definition at line 313 of file rte_dmadev.h. Field Documentation const char* dev_name Unique device name. Definition at line 314 of file rte_dmadev.h. uint64_t dev_capa Device capabilities (RTE_DMA_CAPA_*). Definition at line 316 of file rte_dmadev.h. uint16_t max_vchans Maximum number of virtual DMA channels supported. Definition at line 318 of file rte_dmadev.h. uint16_t max_desc Maximum allowed number of virtual DMA channel descriptors. Definition at line 320 of file rte_dmadev.h. uint16_t min_desc Minimum allowed number of virtual DMA channel descriptors. Definition at line 322 of file rte_dmadev.h. uint16_t max_sges Maximum number of source or destination scatter-gather entry supported. If the device does not support COPY_SG capability, this value can be zero. If the device supports COPY_SG capability, then rte_dma_copy_sg() parameter nb_src/nb_dst should not exceed this value. Definition at line 330 of file rte_dmadev.h. int16_t numa_node NUMA node connection, -1 if unknown. Definition at line 332 of file rte_dmadev.h. uint16_t nb_vchans Number of virtual DMA channel configured. Definition at line 334 of file rte_dmadev.h. uint16_t nb_priorities Number of priority levels (must be > 1) if priority scheduling is supported, 0 otherwise. Definition at line 338 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_info(3)
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