[dpdk-dev] [RFC PATCH] dmadev: introduce DMA device library

[David Marchand]

On Tue, Jun 15, 2021 at 3:25 PM Chengwen Feng <fengchengwen at huawei.com> wrote:
> +
> +#define RTE_DMADEV_NAME_MAX_LEN        (64)
> +/**< @internal Max length of name of DMA PMD */
> +
> +/** @internal
> + * The data structure associated with each DMA device.
> + */
> +struct rte_dmadev {
> +       /**< Device ID for this instance */
> +       uint16_t dev_id;
> +       /**< Functions exported by PMD */
> +       const struct rte_dmadev_ops *dev_ops;
> +       /**< Device info. supplied during device initialization */
> +       struct rte_device *device;
> +       /**< Driver info. supplied by probing */
> +       const char *driver_name;
> +
> +       /**< Device name */
> +       char name[RTE_DMADEV_NAME_MAX_LEN];
> +} __rte_cache_aligned;
> +

I see no queue/channel notion.
How does a rte_dmadev object relate to a physical hw engine?


-- 
David Marchand