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* [PATCH rfc v3 0/4] add frag page support in page pool
@ 2021-07-12  9:19 Yunsheng Lin
  2021-07-12  9:19 ` [PATCH rfc v3 1/4] page_pool: keep pp info as long as page pool owns the page Yunsheng Lin
                   ` (5 more replies)
  0 siblings, 6 replies; 11+ messages in thread
From: Yunsheng Lin @ 2021-07-12  9:19 UTC (permalink / raw)
  To: davem, kuba
  Cc: alexander.duyck, linux, mw, linuxarm, yisen.zhuang, salil.mehta,
	thomas.petazzoni, hawk, ilias.apalodimas, ast, daniel,
	john.fastabend, akpm, peterz, will, willy, vbabka, fenghua.yu,
	guro, peterx, feng.tang, jgg, mcroce, hughd, jonathan.lemon,
	alobakin, willemb, wenxu, cong.wang, haokexin, nogikh, elver,
	yhs, kpsingh, andrii, kafai, songliubraving, netdev,
	linux-kernel, bpf

This patchset adds frag page support in page pool and
enable skb's page frag recycling based on page pool in
hns3 drvier.

RFC v3:
1. Implement the semantic of "page recycling only wait for the
   page pool user instead of all user of a page" 
2. Support the frag allocation of different sizes
3. Merge patch 4 & 5 to one patch as it does not make sense to
   use page_pool_dev_alloc_pages() API directly with elevated
   refcnt.
4. other minor comment suggested by Alexander.

RFC v2:
1. Split patch 1 to more reviewable one.
2. Repurpose the lower 12 bits of the dma address to store the
   pagecnt_bias as suggested by Alexander.
3. support recycling to pool->alloc for elevated refcnt case
   too.


Yunsheng Lin (4):
  page_pool: keep pp info as long as page pool owns the page
  page_pool: add interface for getting and setting pagecnt_bias
  page_pool: add frag page recycling support in page pool
  net: hns3: support skb's frag page recycling based on page pool

 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c |  79 ++++++++++++-
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.h |   3 +
 drivers/net/ethernet/marvell/mvneta.c           |   6 +-
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c |   2 +-
 drivers/net/ethernet/ti/cpsw.c                  |   2 +-
 drivers/net/ethernet/ti/cpsw_new.c              |   2 +-
 include/linux/skbuff.h                          |   4 +-
 include/net/page_pool.h                         |  58 +++++++--
 net/core/page_pool.c                            | 150 +++++++++++++++++++++---
 9 files changed, 262 insertions(+), 44 deletions(-)

-- 
2.7.4


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [PATCH rfc v3 0/4] add frag page support in page pool
@ 2021-07-12 12:16 Yunsheng Lin
  2021-07-12 12:16 ` [PATCH rfc v3 3/4] page_pool: add frag page recycling " Yunsheng Lin
  0 siblings, 1 reply; 11+ messages in thread
From: Yunsheng Lin @ 2021-07-12 12:16 UTC (permalink / raw)
  To: davem, kuba
  Cc: alexander.duyck, linux, mw, linuxarm, yisen.zhuang, salil.mehta,
	thomas.petazzoni, hawk, ilias.apalodimas, ast, daniel,
	john.fastabend, akpm, peterz, will, willy, vbabka, fenghua.yu,
	guro, peterx, feng.tang, jgg, mcroce, hughd, jonathan.lemon,
	alobakin, willemb, wenxu, cong.wang, haokexin, nogikh, elver,
	yhs, kpsingh, andrii, kafai, songliubraving, netdev,
	linux-kernel, bpf

This patchset adds frag page support in page pool and
enable skb's page frag recycling based on page pool in
hns3 drvier.

RFC v3:
1. Implement the semantic of "page recycling only wait for the
   page pool user instead of all user of a page" 
2. Support the frag allocation of different sizes
3. Merge patch 4 & 5 to one patch as it does not make sense to
   use page_pool_dev_alloc_pages() API directly with elevated
   refcnt.
4. other minor comment suggested by Alexander.

RFC v2:
1. Split patch 1 to more reviewable one.
2. Repurpose the lower 12 bits of the dma address to store the
   pagecnt_bias as suggested by Alexander.
3. support recycling to pool->alloc for elevated refcnt case
   too.

Yunsheng Lin (4):
  page_pool: keep pp info as long as page pool owns the page
  page_pool: add interface for getting and setting pagecnt_bias
  page_pool: add frag page recycling support in page pool
  net: hns3: support skb's frag page recycling based on page pool

 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c |  79 +++++++++++-
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.h |   3 +
 drivers/net/ethernet/marvell/mvneta.c           |   6 +-
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c |   2 +-
 drivers/net/ethernet/ti/cpsw.c                  |   2 +-
 drivers/net/ethernet/ti/cpsw_new.c              |   2 +-
 include/linux/skbuff.h                          |   4 +-
 include/net/page_pool.h                         |  58 +++++++--
 net/core/page_pool.c                            | 155 +++++++++++++++++++++---
 9 files changed, 267 insertions(+), 44 deletions(-)

-- 
2.7.4


^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2021-07-13  7:20 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-12  9:19 [PATCH rfc v3 0/4] add frag page support in page pool Yunsheng Lin
2021-07-12  9:19 ` [PATCH rfc v3 1/4] page_pool: keep pp info as long as page pool owns the page Yunsheng Lin
2021-07-12  9:19 ` [PATCH rfc v3 2/4] page_pool: add interface for getting and setting pagecnt_bias Yunsheng Lin
2021-07-12  9:19 ` [PATCH rfc v3 3/4] page_pool: add frag page recycling support in page pool Yunsheng Lin
2021-07-12  9:19 ` [PATCH rfc v3 3/4] page_pool: add page recycling support based on elevated refcnt Yunsheng Lin
2021-07-12  9:28   ` [Linuxarm] " Yunsheng Lin
2021-07-12  9:19 ` [PATCH rfc v3 4/4] net: hns3: support skb's frag page recycling based on page pool Yunsheng Lin
2021-07-12 10:39 ` [Linuxarm] [PATCH rfc v3 0/4] add frag page support in " Yunsheng Lin
2021-07-12 12:16 Yunsheng Lin
2021-07-12 12:16 ` [PATCH rfc v3 3/4] page_pool: add frag page recycling " Yunsheng Lin
2021-07-12 19:46   ` Alexander Duyck
2021-07-13  7:20     ` Yunsheng Lin

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