From: Ilias Apalodimas <ilias.apalodimas@linaro.org>
To: netdev@vger.kernel.org, jaswinder.singh@linaro.org
Cc: ard.biesheuvel@linaro.org, bjorn.topel@intel.com,
magnus.karlsson@intel.com, brouer@redhat.com,
daniel@iogearbox.net, ast@kernel.org,
makita.toshiaki@lab.ntt.co.jp, jakub.kicinski@netronome.com,
john.fastabend@gmail.com, davem@davemloft.net,
maciejromanfijalkowski@gmail.com,
Ilias Apalodimas <ilias.apalodimas@linaro.org>
Subject: [net-next, PATCH 2/3, v2] net: page_pool: add helper function for retrieving dma direction
Date: Sat, 29 Jun 2019 08:23:24 +0300 [thread overview]
Message-ID: <1561785805-21647-3-git-send-email-ilias.apalodimas@linaro.org> (raw)
In-Reply-To: <1561785805-21647-1-git-send-email-ilias.apalodimas@linaro.org>
Since the dma direction is stored in page pool params, offer an API
helper for driver that choose not to keep track of it locally
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
---
include/net/page_pool.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/net/page_pool.h b/include/net/page_pool.h
index f07c518ef8a5..ee9c871d2043 100644
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -112,6 +112,15 @@ static inline struct page *page_pool_dev_alloc_pages(struct page_pool *pool)
return page_pool_alloc_pages(pool, gfp);
}
+/* get the stored dma direction. A driver might decide to treat this locally and
+ * avoid the extra cache line from page_pool to determine the direction
+ */
+static
+inline enum dma_data_direction page_pool_get_dma_dir(struct page_pool *pool)
+{
+ return pool->p.dma_dir;
+}
+
struct page_pool *page_pool_create(const struct page_pool_params *params);
void __page_pool_free(struct page_pool *pool);
--
2.20.1
next prev parent reply other threads:[~2019-06-29 5:24 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-29 5:23 [PATCH 0/3, net-next, v2] net: netsec: Add XDP Support Ilias Apalodimas
2019-06-29 5:23 ` [net-next, PATCH 1/3, v2] net: netsec: Use page_pool API Ilias Apalodimas
2019-06-29 5:23 ` Ilias Apalodimas [this message]
2019-06-29 5:23 ` [net-next, PATCH 3/3, v2] net: netsec: add XDP support Ilias Apalodimas
2019-06-29 10:36 ` Jesper Dangaard Brouer
2019-06-30 16:20 ` Ivan Khoronzhuk
2019-06-30 16:34 ` Ilias Apalodimas
2019-06-30 16:45 ` Ivan Khoronzhuk
2019-06-30 16:50 ` Ilias Apalodimas
2019-06-30 16:25 ` Ivan Khoronzhuk
2019-06-30 16:32 ` Ilias Apalodimas
2019-06-30 16:41 ` Ivan Khoronzhuk
2019-06-30 16:47 ` Ilias Apalodimas
2019-06-30 16:51 ` Ivan Khoronzhuk
2019-06-30 17:09 ` Ivan Khoronzhuk
2019-07-02 2:27 ` [PATCH 0/3, net-next, v2] net: netsec: Add XDP Support David Miller
2019-07-02 3:18 ` Ilias Apalodimas
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