[PATCH net v1 1/2] page_pool: expose max page pool ring size
From: Mina Almasry <hidden>
Date: 2025-11-05 20:08:05
Also in:
lkml
Subsystem:
networking [general], page pool, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Jesper Dangaard Brouer, Ilias Apalodimas, Linus Torvalds
Expose this as a constant so we can reuse it in drivers. Signed-off-by: Mina Almasry <redacted> --- include/net/page_pool/types.h | 2 ++ net/core/page_pool.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/net/page_pool/types.h b/include/net/page_pool/types.h
index 1509a536cb85..5edba3122b10 100644
--- a/include/net/page_pool/types.h
+++ b/include/net/page_pool/types.h@@ -58,6 +58,8 @@ struct pp_alloc_cache { netmem_ref cache[PP_ALLOC_CACHE_SIZE]; }; +#define PAGE_POOL_MAX_RING_SIZE 16384 + /** * struct page_pool_params - page pool parameters * @fast: params accessed frequently on hotpath
diff --git a/net/core/page_pool.c b/net/core/page_pool.c
index 1a5edec485f1..7b2808da294f 100644
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c@@ -211,7 +211,7 @@ static int page_pool_init(struct page_pool *pool, return -EINVAL; if (pool->p.pool_size) - ring_qsize = min(pool->p.pool_size, 16384); + ring_qsize = min(pool->p.pool_size, PAGE_POOL_MAX_RING_SIZE); /* DMA direction is either DMA_FROM_DEVICE or DMA_BIDIRECTIONAL. * DMA_BIDIRECTIONAL is for allowing page used for DMA sending,
base-commit: 327c20c21d80e0d87834b392d83ae73c955ad8ff -- 2.51.2.1026.g39e6a42477-goog