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Subject[PATCH rfc v2 0/5] add elevated refcnt support for page pool
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This patchset adds elevated refcnt support for page pool
and enable skb's page frag recycling based on page pool
in hns3 drvier.

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 (5):
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 page recycling support based on elevated refcnt
page_pool: support page frag API for 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 | 50 +++++--
net/core/page_pool.c | 172 ++++++++++++++++++++----
9 files changed, 266 insertions(+), 54 deletions(-)

--
2.7.4

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