Data Fields¶

enum rte_dma_direction direction
uint16_t nb_desc
struct rte_dma_port_param src_port
struct rte_dma_port_param dst_port
struct rte_dma_auto_free_param auto_free
struct rte_dma_inter_domain_param domain

enum rte_dma_direction direction¶

Transfer direction

See also

Definition at line 654 of file rte_dmadev.h.

uint16_t nb_desc¶

Number of descriptor for the virtual DMA channel

Definition at line 656 of file rte_dmadev.h.

struct rte_dma_port_param src_port¶

1) Used to describes the device access port parameter in the device-to-memory transfer scenario. 2) Used to describes the source device access port parameter in the device-to-device transfer scenario.

See also

Definition at line 664 of file rte_dmadev.h.

struct rte_dma_port_param dst_port¶

1) Used to describes the device access port parameter in the memory-to-device transfer scenario. 2) Used to describes the destination device access port parameter in the device-to-device transfer scenario.

See also

Definition at line 672 of file rte_dmadev.h.

struct rte_dma_auto_free_param auto_free¶

Buffer params to auto free buffer by hardware. To free the buffer by hardware, RTE_DMA_OP_FLAG_AUTO_FREE must be set while calling rte_dma_copy and rte_dma_copy_sg().

See also

Definition at line 680 of file rte_dmadev.h.

struct rte_dma_inter_domain_param domain¶

Parameters for inter-process or inter-OS domain DMA transfers. This field specifies the source and destination domain handlers required for DMA operations that span across different processes or operating system domains.

See also

Definition at line 690 of file rte_dmadev.h.