NAME

       rte_event_dma_adapter_op

SYNOPSIS

       #include <rte_event_dma_adapter.h>

   Data Fields
       uint64_t flags
       struct rte_mempool * op_mp
       enum rte_dma_status_code status
       uint32_t rsvd
       uint64_t impl_opaque [2]
       uint64_t user_meta
       uint64_t event_meta
       int16_t dma_dev_id
       uint16_t vchan
       uint16_t nb_src
       uint16_t nb_dst
       struct rte_dma_sge src_dst_seg []

Detailed Description

       A structure used to hold event based DMA operation entry. All the information required for a DMA transfer
       shall be populated in 'struct rte_event_dma_adapter_op' instance.

       Definition at line 159 of file rte_event_dma_adapter.h.

Field Documentation

   uint64_t flags
       Flags related to the operation.

       See also
           RTE_DMA_OP_FLAG_*

       Definition at line 160 of file rte_event_dma_adapter.h.

   struct rte_mempool* op_mp
       Mempool from which op is allocated.

       Definition at line 164 of file rte_event_dma_adapter.h.

   enum rte_dma_status_code status
       Status code for this operation.

       Definition at line 166 of file rte_event_dma_adapter.h.

   uint32_t rsvd
       Reserved for future use.

       Definition at line 168 of file rte_event_dma_adapter.h.

   uint64_t impl_opaque[2]
       Implementation-specific opaque data. An dma device implementation use this field to hold implementation
       specific values to share between dequeue and enqueue operations. The application should not modify this
       field.

       Definition at line 170 of file rte_event_dma_adapter.h.

   uint64_t user_meta
       Memory to store user specific metadata. The dma device implementation should not modify this area.

       Definition at line 177 of file rte_event_dma_adapter.h.

   uint64_t event_meta
       Event metadata of DMA completion event. Used when RTE_EVENT_DMA_ADAPTER_CAP_INTERNAL_PORT_VCHAN_EV_BIND
       is not supported in OP_NEW mode.

       See also
           rte_event_dma_adapter_mode::RTE_EVENT_DMA_ADAPTER_OP_NEW

           RTE_EVENT_DMA_ADAPTER_CAP_INTERNAL_PORT_VCHAN_EV_BIND

       Used when RTE_EVENT_DMA_ADAPTER_CAP_INTERNAL_PORT_OP_FWD is not supported in OP_FWD mode.

       See also
           rte_event_dma_adapter_mode::RTE_EVENT_DMA_ADAPTER_OP_FORWARD

           RTE_EVENT_DMA_ADAPTER_CAP_INTERNAL_PORT_OP_FWD

           struct rte_event::event

       Definition at line 181 of file rte_event_dma_adapter.h.

   int16_t dma_dev_id
       DMA device ID to be used with OP_FORWARD mode.

       See also
           rte_event_dma_adapter_mode::RTE_EVENT_DMA_ADAPTER_OP_FORWARD

       Definition at line 195 of file rte_event_dma_adapter.h.

   uint16_t vchan
       DMA vchan ID to be used with OP_FORWARD mode

       See also
           rte_event_dma_adapter_mode::RTE_EVENT_DMA_ADAPTER_OP_FORWARD

       Definition at line 199 of file rte_event_dma_adapter.h.

   uint16_t nb_src
       Number of source segments.

       Definition at line 203 of file rte_event_dma_adapter.h.

   uint16_t nb_dst
       Number of destination segments.

       Definition at line 205 of file rte_event_dma_adapter.h.

   struct rte_dma_sge src_dst_seg[]
       Source and destination segments.

       Definition at line 207 of file rte_event_dma_adapter.h.

Author

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DPDK                                             Version 24.11.2                     rte_event_dma_adapter_op(3)