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authorLorenzo Bianconi <lorenzo@kernel.org>2020-11-13 12:48:29 +0100
committerDaniel Borkmann <daniel@iogearbox.net>2020-11-14 02:29:00 +0100
commit7886244736a4dbb49987f330772842130493e050 (patch)
treeb77bc5437fc0787c4d38d58742c2f4294a20ca05 /include/net/page_pool.h
parent8965398713d831f6b893805880c249e62e9059ae (diff)
downloadlinux-7886244736a4dbb49987f330772842130493e050.tar.bz2
net: page_pool: Add bulk support for ptr_ring
Introduce the capability to batch page_pool ptr_ring refill since it is usually run inside the driver NAPI tx completion loop. Suggested-by: Jesper Dangaard Brouer <brouer@redhat.com> Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Link: https://lore.kernel.org/bpf/08dd249c9522c001313f520796faa777c4089e1c.1605267335.git.lorenzo@kernel.org
Diffstat (limited to 'include/net/page_pool.h')
-rw-r--r--include/net/page_pool.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/include/net/page_pool.h b/include/net/page_pool.h
index 81d7773f96cd..b5b195305346 100644
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -152,6 +152,8 @@ struct page_pool *page_pool_create(const struct page_pool_params *params);
void page_pool_destroy(struct page_pool *pool);
void page_pool_use_xdp_mem(struct page_pool *pool, void (*disconnect)(void *));
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);
#else
static inline void page_pool_destroy(struct page_pool *pool)
{
@@ -165,6 +167,11 @@ static inline void page_pool_release_page(struct page_pool *pool,
struct page *page)
{
}
+
+static inline void page_pool_put_page_bulk(struct page_pool *pool, void **data,
+ int count)
+{
+}
#endif
void page_pool_put_page(struct page_pool *pool, struct page *page,
@@ -215,4 +222,23 @@ static inline void page_pool_nid_changed(struct page_pool *pool, int new_nid)
if (unlikely(pool->p.nid != new_nid))
page_pool_update_nid(pool, new_nid);
}
+
+static inline void page_pool_ring_lock(struct page_pool *pool)
+ __acquires(&pool->ring.producer_lock)
+{
+ if (in_serving_softirq())
+ spin_lock(&pool->ring.producer_lock);
+ else
+ spin_lock_bh(&pool->ring.producer_lock);
+}
+
+static inline void page_pool_ring_unlock(struct page_pool *pool)
+ __releases(&pool->ring.producer_lock)
+{
+ if (in_serving_softirq())
+ spin_unlock(&pool->ring.producer_lock);
+ else
+ spin_unlock_bh(&pool->ring.producer_lock);
+}
+
#endif /* _NET_PAGE_POOL_H */