On Sun, 2023-11-05 at 18:44 -0800, Mina Almasry wrote:
> diff --git a/include/net/page_pool/types.h b/include/net/page_pool/types.h
> index 6fc5134095ed..d4bea053bb7e 100644
> --- a/include/net/page_pool/types.h
> +++ b/include/net/page_pool/types.h
> @@ -60,6 +60,8 @@ struct page_pool_params {
> int nid;
> struct device *dev;
> struct napi_struct *napi;
> + u8 memory_provider;
> + void *mp_priv;
Minor nit: swapping the above 2 fields should make the struct smaller.
> enum dma_data_direction dma_dir;
> unsigned int max_len;
> unsigned int offset;
> @@ -118,6 +120,19 @@ struct page_pool_stats {
> };
> #endif
>
> +struct mem_provider;
> +
> +enum pp_memory_provider_type {
> + __PP_MP_NONE, /* Use system allocator directly */
> +};
> +
> +struct pp_memory_provider_ops {
> + int (*init)(struct page_pool *pool);
> + void (*destroy)(struct page_pool *pool);
> + struct page *(*alloc_pages)(struct page_pool *pool, gfp_t gfp);
> + bool (*release_page)(struct page_pool *pool, struct page *page);
> +};
> +
> struct page_pool {
> struct page_pool_params p;
>
> @@ -165,6 +180,9 @@ struct page_pool {
> */
> struct ptr_ring ring;
>
> + const struct pp_memory_provider_ops *mp_ops;
> + void *mp_priv;
Why the mp_ops are not part of page_pool_params? why mp_priv is
duplicated here?
Cheers,
Paolo
