[PATCH bpf-next 2/8] page_pool: Store the XDP mem id
STALE1759d
From: Toke Høiland-Jørgensen <hidden>
Date: 2021-12-02 00:04:23
Also in:
bpf
Subsystem:
networking [general], page pool, the rest, xdp (express data path) · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Jesper Dangaard Brouer, Ilias Apalodimas, Linus Torvalds, Alexei Starovoitov, Daniel Borkmann, John Fastabend
Revision v1 of 11 in this series.
Revisions (11)
Store the XDP mem ID inside the page_pool struct so it can be retrieved later for use in bpf_prog_run(). Signed-off-by: Toke Høiland-Jørgensen <redacted> --- include/net/page_pool.h | 9 +++++++-- net/core/page_pool.c | 4 +++- net/core/xdp.c | 2 +- 3 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/include/net/page_pool.h b/include/net/page_pool.h
index a71201854c41..6bc0409c4ffd 100644
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h@@ -96,6 +96,7 @@ struct page_pool { unsigned int frag_offset; struct page *frag_page; long frag_users; + u32 xdp_mem_id; /* * Data structure for allocation side
@@ -170,9 +171,12 @@ bool page_pool_return_skb_page(struct page *page); struct page_pool *page_pool_create(const struct page_pool_params *params); +struct xdp_mem_info; + #ifdef CONFIG_PAGE_POOL void page_pool_destroy(struct page_pool *pool); -void page_pool_use_xdp_mem(struct page_pool *pool, void (*disconnect)(void *)); +void page_pool_use_xdp_mem(struct page_pool *pool, void (*disconnect)(void *), + struct xdp_mem_info *mem); void page_pool_release_page(struct page_pool *pool, struct page *page); void page_pool_put_page_bulk(struct page_pool *pool, void **data, int count);
@@ -182,7 +186,8 @@ static inline void page_pool_destroy(struct page_pool *pool) } static inline void page_pool_use_xdp_mem(struct page_pool *pool, - void (*disconnect)(void *)) + void (*disconnect)(void *), + struct xdp_mem_info *mem) { } static inline void page_pool_release_page(struct page_pool *pool,
diff --git a/net/core/page_pool.c b/net/core/page_pool.c
index fb5a90b9d574..2605467251f1 100644
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c@@ -695,10 +695,12 @@ static void page_pool_release_retry(struct work_struct *wq) schedule_delayed_work(&pool->release_dw, DEFER_TIME); } -void page_pool_use_xdp_mem(struct page_pool *pool, void (*disconnect)(void *)) +void page_pool_use_xdp_mem(struct page_pool *pool, void (*disconnect)(void *), + struct xdp_mem_info *mem) { refcount_inc(&pool->user_cnt); pool->disconnect = disconnect; + pool->xdp_mem_id = mem->id; } void page_pool_destroy(struct page_pool *pool)
diff --git a/net/core/xdp.c b/net/core/xdp.c
index 5ddc29f29bad..143388c6d9dd 100644
--- a/net/core/xdp.c
+++ b/net/core/xdp.c@@ -318,7 +318,7 @@ int xdp_rxq_info_reg_mem_model(struct xdp_rxq_info *xdp_rxq, } if (type == MEM_TYPE_PAGE_POOL) - page_pool_use_xdp_mem(allocator, mem_allocator_disconnect); + page_pool_use_xdp_mem(allocator, mem_allocator_disconnect, mem); mutex_unlock(&mem_id_lock);
--
2.34.0