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From: David Wei <[email protected]>
To: [email protected], [email protected]
Cc: Jens Axboe <[email protected]>,
	Pavel Begunkov <[email protected]>,
	Jakub Kicinski <[email protected]>, Paolo Abeni <[email protected]>,
	"David S. Miller" <[email protected]>,
	Eric Dumazet <[email protected]>,
	Jesper Dangaard Brouer <[email protected]>,
	David Ahern <[email protected]>,
	Mina Almasry <[email protected]>
Subject: [RFC PATCH v3 01/20] net: page_pool: add ppiov mangling helper
Date: Tue, 19 Dec 2023 13:03:38 -0800	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

From: Pavel Begunkov <[email protected]>

NOT FOR UPSTREAM

The final version will depend on how ppiov looks like, but add a
convenience helper for now.

Signed-off-by: Pavel Begunkov <[email protected]>
Signed-off-by: David Wei <[email protected]>
---
 include/net/page_pool/helpers.h | 5 +++++
 net/core/page_pool.c            | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/net/page_pool/helpers.h b/include/net/page_pool/helpers.h
index 95f4d579cbc4..92804c499833 100644
--- a/include/net/page_pool/helpers.h
+++ b/include/net/page_pool/helpers.h
@@ -86,6 +86,11 @@ static inline u64 *page_pool_ethtool_stats_get(u64 *data, void *stats)
 
 /* page_pool_iov support */
 
+static inline struct page *page_pool_mangle_ppiov(struct page_pool_iov *ppiov)
+{
+	return (struct page *)((unsigned long)ppiov | PP_DEVMEM);
+}
+
 static inline struct dmabuf_genpool_chunk_owner *
 page_pool_iov_owner(const struct page_pool_iov *ppiov)
 {
diff --git a/net/core/page_pool.c b/net/core/page_pool.c
index c0bc62ee77c6..38eff947f679 100644
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -1074,7 +1074,7 @@ static struct page *mp_dmabuf_devmem_alloc_pages(struct page_pool *pool,
 	pool->pages_state_hold_cnt++;
 	trace_page_pool_state_hold(pool, (struct page *)ppiov,
 				   pool->pages_state_hold_cnt);
-	return (struct page *)((unsigned long)ppiov | PP_DEVMEM);
+	return page_pool_mangle_ppiov(ppiov);
 }
 
 static void mp_dmabuf_devmem_destroy(struct page_pool *pool)
-- 
2.39.3


  reply	other threads:[~2023-12-19 21:04 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-19 21:03 [RFC PATCH v3 00/20] Zero copy Rx using io_uring David Wei
2023-12-19 21:03 ` David Wei [this message]
2023-12-19 23:22   ` [RFC PATCH v3 01/20] net: page_pool: add ppiov mangling helper Mina Almasry
2023-12-19 23:59     ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 02/20] tcp: don't allow non-devmem originated ppiov David Wei
2023-12-19 23:24   ` Mina Almasry
2023-12-20  1:29     ` Pavel Begunkov
2024-01-02 16:11       ` Mina Almasry
2023-12-19 21:03 ` [RFC PATCH v3 03/20] net: page pool: rework ppiov life cycle David Wei
2023-12-19 23:35   ` Mina Almasry
2023-12-20  0:49     ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 04/20] net: enable napi_pp_put_page for ppiov David Wei
2023-12-19 21:03 ` [RFC PATCH v3 05/20] net: page_pool: add ->scrub mem provider callback David Wei
2023-12-19 21:03 ` [RFC PATCH v3 06/20] io_uring: separate header for exported net bits David Wei
2023-12-20 16:01   ` Jens Axboe
2023-12-19 21:03 ` [RFC PATCH v3 07/20] io_uring: add interface queue David Wei
2023-12-20 16:13   ` Jens Axboe
2023-12-20 16:23     ` Pavel Begunkov
2023-12-21  1:44     ` David Wei
2023-12-21 17:57   ` Willem de Bruijn
2023-12-30 16:25     ` Pavel Begunkov
2023-12-31 22:25       ` Willem de Bruijn
2023-12-19 21:03 ` [RFC PATCH v3 08/20] io_uring: add mmap support for shared ifq ringbuffers David Wei
2023-12-20 16:13   ` Jens Axboe
2023-12-19 21:03 ` [RFC PATCH v3 09/20] netdev: add XDP_SETUP_ZC_RX command David Wei
2023-12-19 21:03 ` [RFC PATCH v3 10/20] io_uring: setup ZC for an Rx queue when registering an ifq David Wei
2023-12-20 16:06   ` Jens Axboe
2023-12-20 16:24     ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 11/20] io_uring/zcrx: implement socket registration David Wei
2023-12-19 21:03 ` [RFC PATCH v3 12/20] io_uring: add ZC buf and pool David Wei
2023-12-19 21:03 ` [RFC PATCH v3 13/20] io_uring: implement pp memory provider for zc rx David Wei
2023-12-19 23:44   ` Mina Almasry
2023-12-20  0:39     ` Pavel Begunkov
2023-12-21 19:36   ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 14/20] net: page pool: add io_uring memory provider David Wei
2023-12-19 23:39   ` Mina Almasry
2023-12-20  0:04     ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 15/20] io_uring: add io_recvzc request David Wei
2023-12-20 16:27   ` Jens Axboe
2023-12-20 17:04     ` Pavel Begunkov
2023-12-20 18:09       ` Jens Axboe
2023-12-21 18:59         ` Pavel Begunkov
2023-12-21 21:32           ` Jens Axboe
2023-12-30 21:15             ` Pavel Begunkov
2023-12-19 21:03 ` [RFC PATCH v3 16/20] net: execute custom callback from napi David Wei
2023-12-19 21:03 ` [RFC PATCH v3 17/20] io_uring/zcrx: add copy fallback David Wei
2023-12-19 21:03 ` [RFC PATCH v3 18/20] veth: add support for io_uring zc rx David Wei
2023-12-19 21:03 ` [RFC PATCH v3 19/20] net: page pool: generalise ppiov dma address get David Wei
2023-12-21 19:51   ` Mina Almasry
2023-12-19 21:03 ` [RFC PATCH v3 20/20] bnxt: enable io_uring zc page pool David Wei

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