[PATCH v2] rawdev: add API to get device from index

[Hemant Agrawal]

Reviewed-by:  Hemant Agrawal <hemant.agrawal at nxp.com>

On 08-10-2024 13:10, Akhil Goyal wrote:
> Added an internal API for PMDs to get raw device pointer
> from a device id.
>
> Signed-off-by: Akhil Goyal <gakhil at marvell.com>
> ---
> - resend patch for main branch separated from rvu_lf raw driver
> https://patches.dpdk.org/project/dpdk/list/?series=32949
>
>   lib/rawdev/rte_rawdev_pmd.h | 24 ++++++++++++++++++++++++
>   1 file changed, 24 insertions(+)
>
> diff --git a/lib/rawdev/rte_rawdev_pmd.h b/lib/rawdev/rte_rawdev_pmd.h
> index 22b406444d..8339122348 100644
> --- a/lib/rawdev/rte_rawdev_pmd.h
> +++ b/lib/rawdev/rte_rawdev_pmd.h
> @@ -102,6 +102,30 @@ rte_rawdev_pmd_get_named_dev(const char *name)
>   	return NULL;
>   }
>   
> +/**
> + * Get the rte_rawdev structure device pointer for given device ID.
> + *
> + * @param dev_id
> + *   raw device index.
> + *
> + * @return
> + *   - The rte_rawdev structure pointer for the given device ID.
> + */
> +static inline struct rte_rawdev *
> +rte_rawdev_pmd_get_dev(uint8_t dev_id)
> +{
> +	struct rte_rawdev *dev;
> +
> +	if (dev_id >= RTE_RAWDEV_MAX_DEVS)
> +		return NULL;
> +
> +	dev = &rte_rawdevs[dev_id];
> +	if (dev->attached == RTE_RAWDEV_ATTACHED)
> +		return dev;
> +
> +	return NULL;
> +}
> +
>   /**
>    * Validate if the raw device index is a valid attached raw device.
>    *