From: Jesper Dangaard Brouer <brouer@redhat.com>
To: netdev@vger.kernel.org,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
"Toke Høiland-Jørgensen" <toke@toke.dk>,
"Tariq Toukan" <tariqt@mellanox.com>,
"Jesper Dangaard Brouer" <brouer@redhat.com>
Cc: toshiaki.makita1@gmail.com, grygorii.strashko@ti.com,
ivan.khoronzhuk@linaro.org, mcroce@redhat.com
Subject: [PATCH net-next v1 02/11] net: page_pool: add helper function to unmap dma addresses
Date: Thu, 13 Jun 2019 20:28:12 +0200 [thread overview]
Message-ID: <156045049204.29115.16513866032635344395.stgit@firesoul> (raw)
In-Reply-To: <156045046024.29115.11802895015973488428.stgit@firesoul>
From: Ilias Apalodimas <ilias.apalodimas@linaro.org>
On a previous patch dma addr was stored in 'struct page'.
Use that to unmap DMA addresses used by network drivers
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
---
include/net/page_pool.h | 1 +
net/core/page_pool.c | 7 +++++++
2 files changed, 8 insertions(+)
diff --git a/include/net/page_pool.h b/include/net/page_pool.h
index b885d86cb7a1..ad218cef88c5 100644
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -110,6 +110,7 @@ static inline struct page *page_pool_dev_alloc_pages(struct page_pool *pool)
struct page_pool *page_pool_create(const struct page_pool_params *params);
void page_pool_destroy(struct page_pool *pool);
+void page_pool_unmap_page(struct page_pool *pool, struct page *page);
/* Never call this directly, use helpers below */
void __page_pool_put_page(struct page_pool *pool,
diff --git a/net/core/page_pool.c b/net/core/page_pool.c
index 5b2252c6d49b..205af7bd6d09 100644
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -190,6 +190,13 @@ static void __page_pool_clean_page(struct page_pool *pool,
page->dma_addr = 0;
}
+/* unmap the page and clean our state */
+void page_pool_unmap_page(struct page_pool *pool, struct page *page)
+{
+ __page_pool_clean_page(pool, page);
+}
+EXPORT_SYMBOL(page_pool_unmap_page);
+
/* Return a page to the page allocator, cleaning up our state */
static void __page_pool_return_page(struct page_pool *pool, struct page *page)
{
next prev parent reply other threads:[~2019-06-13 18:28 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 18:28 [PATCH net-next v1 00/11] xdp: page_pool fixes and in-flight accounting Jesper Dangaard Brouer
2019-06-13 18:28 ` [PATCH net-next v1 01/11] net: page_pool: add helper function to retrieve dma addresses Jesper Dangaard Brouer
2019-06-13 18:28 ` Jesper Dangaard Brouer [this message]
2019-06-13 18:28 ` [PATCH net-next v1 03/11] xdp: fix leak of IDA cyclic id if rhashtable_insert_slow fails Jesper Dangaard Brouer
2019-06-13 18:28 ` [PATCH net-next v1 04/11] xdp: page_pool related fix to cpumap Jesper Dangaard Brouer
2019-06-13 18:28 ` [PATCH net-next v1 05/11] veth: use xdp_release_frame for XDP_PASS Jesper Dangaard Brouer
2019-06-13 18:28 ` [PATCH net-next v1 06/11] page_pool: introduce page_pool_free and use in mlx5 Jesper Dangaard Brouer
2019-06-13 18:28 ` [PATCH net-next v1 07/11] mlx5: more strict use of page_pool API Jesper Dangaard Brouer
2019-06-13 18:28 ` [PATCH net-next v1 08/11] xdp: tracking page_pool resources and safe removal Jesper Dangaard Brouer
2019-06-14 11:01 ` Ilias Apalodimas
2019-06-15 9:33 ` Ivan Khoronzhuk
2019-06-16 10:56 ` Tariq Toukan
2019-06-18 12:54 ` Ivan Khoronzhuk
2019-06-18 13:30 ` Ilias Apalodimas
2019-06-18 13:48 ` Ivan Khoronzhuk
2019-06-18 15:19 ` Jesper Dangaard Brouer
2019-06-18 17:54 ` Ivan Khoronzhuk
2019-06-19 11:12 ` Ivan Khoronzhuk
2019-06-13 18:28 ` [PATCH net-next v1 09/11] xdp: force mem allocator removal and periodic warning Jesper Dangaard Brouer
2019-06-15 8:59 ` Ivan Khoronzhuk
2019-06-18 8:37 ` Jesper Dangaard Brouer
2019-06-13 18:28 ` [PATCH net-next v1 10/11] xdp: add tracepoints for XDP mem Jesper Dangaard Brouer
2019-06-13 18:28 ` [PATCH net-next v1 11/11] page_pool: add tracepoints for page_pool with details need by XDP Jesper Dangaard Brouer
2019-06-15 2:41 ` [PATCH net-next v1 00/11] xdp: page_pool fixes and in-flight accounting David Miller
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