[PATCH v3] bitmap: add scan from offset function

[Thomas Monjalon]

21/06/2023 12:01, Volodymyr Fialko:
> Currently, in the case when we search for a bit set after a particular
> value, the bitmap has to be scanned from the beginning and
> rte_bitmap_scan() has to be called multiple times until we hit the value.
> 
> Add a new rte_bitmap_scan_from_offset() function to initialize scan
> state at the given offset and perform scan, this will allow getting
> the next set bit after certain offset within one scan call.
> 
> Signed-off-by: Volodymyr Fialko <vfialko at marvell.com>
> ---
> v2:
>  - added rte_bitmap_scan_from_offset
> v3
>  - added note for internal use only for init_at function
[...]
> +/**
> + * @warning
> + * @b EXPERIMENTAL: this API may change without prior notice.
> + *
> + * Bitmap initialize internal scan pointers at the given position for the scan function.
> + *
> + * Note: for private/internal use, for public:
> + * @see rte_bitmap_scan_from_offset()
> + *
> + * @param bmp
> + *   Handle to bitmap instance
> + * @param pos
> + *   Bit position to start scan
> + */
> +__rte_experimental
> +static inline void
> +__rte_bitmap_scan_init_at(struct rte_bitmap *bmp, uint32_t pos)

I think it should marked with __rte_internal instead of experimental.