rte_event_dma_adapter.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright (c) 2023 Marvell.
 */

#ifndef RTE_EVENT_DMA_ADAPTER
#define RTE_EVENT_DMA_ADAPTER

#include <stdint.h>

#include <rte_common.h>
#include <rte_dmadev_pmd.h>
#include <rte_eventdev.h>

#ifdef __cplusplus
extern "C" {
#endif

struct rte_event_dma_adapter_op {
    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[0];
};

enum rte_event_dma_adapter_mode {
    RTE_EVENT_DMA_ADAPTER_OP_NEW,
    RTE_EVENT_DMA_ADAPTER_OP_FORWARD,
};

struct rte_event_dma_adapter_conf {
    uint8_t event_port_id;
    uint32_t max_nb;
};

struct rte_event_dma_adapter_runtime_params {
    uint32_t max_nb;
    uint32_t rsvd[15];
};

typedef int (*rte_event_dma_adapter_conf_cb)(uint8_t id, uint8_t evdev_id,
                         struct rte_event_dma_adapter_conf *conf, void *arg);

struct rte_event_dma_adapter_stats {
    uint64_t event_poll_count;
    uint64_t event_deq_count;
    uint64_t dma_enq_count;
    uint64_t dma_enq_fail_count;
    uint64_t dma_deq_count;
    uint64_t event_enq_count;
    uint64_t event_enq_retry_count;
    uint64_t event_enq_fail_count;
};

__rte_experimental
int rte_event_dma_adapter_create_ext(uint8_t id, uint8_t evdev_id,
                     rte_event_dma_adapter_conf_cb conf_cb,
                     enum rte_event_dma_adapter_mode mode, void *conf_arg);

__rte_experimental
int rte_event_dma_adapter_create(uint8_t id, uint8_t evdev_id,
                 struct rte_event_port_conf *port_config,
                 enum rte_event_dma_adapter_mode mode);

__rte_experimental
int rte_event_dma_adapter_free(uint8_t id);

__rte_experimental
int rte_event_dma_adapter_event_port_get(uint8_t id, uint8_t *event_port_id);

__rte_experimental
int rte_event_dma_adapter_vchan_add(uint8_t id, int16_t dmadev_id, uint16_t vchan,
                    const struct rte_event *event);

__rte_experimental
int rte_event_dma_adapter_vchan_del(uint8_t id, int16_t dmadev_id, uint16_t vchan);

__rte_experimental
int rte_event_dma_adapter_service_id_get(uint8_t id, uint32_t *service_id);

__rte_experimental
int rte_event_dma_adapter_start(uint8_t id);

__rte_experimental
int rte_event_dma_adapter_stop(uint8_t id);

__rte_experimental
int rte_event_dma_adapter_runtime_params_init(struct rte_event_dma_adapter_runtime_params *params);

__rte_experimental
int rte_event_dma_adapter_runtime_params_set(uint8_t id,
                         struct rte_event_dma_adapter_runtime_params *params);

__rte_experimental
int rte_event_dma_adapter_runtime_params_get(uint8_t id,
                         struct rte_event_dma_adapter_runtime_params *params);

__rte_experimental
int rte_event_dma_adapter_stats_get(uint8_t id, struct rte_event_dma_adapter_stats *stats);

__rte_experimental
int rte_event_dma_adapter_stats_reset(uint8_t id);

__rte_experimental
uint16_t rte_event_dma_adapter_enqueue(uint8_t evdev_id, uint8_t port_id, struct rte_event ev[],
                       uint16_t nb_events);

#ifdef __cplusplus
}
#endif

#endif /* RTE_EVENT_DMA_ADAPTER */