rte_dma_info - Man Page
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
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