[PATCH net-next 0/7] some optimization for page pool

[Yunsheng Lin]

Patch 1: disable dma mapping support for 32-bit arch with 64-bit
         DMA.
Patch 2: support non-split page when PP_FLAG_PAGE_FRAG is set.
patch 3: avoid calling compound_head() for skb frag page
Patch 4-7: use pp_magic to identify pp page uniquely.

V3:
    1. add patch 1/4/6/7.
    2. use pp_magic to identify pp page uniquely too.
    3. avoid unnecessary compound_head() calling.

V2: add patch 2, adjust the commit log accroding to the discussion
    in V1, and fix a compiler error reported by kernel test robot.

Yunsheng Lin (7):
  page_pool: disable dma mapping support for 32-bit arch with 64-bit DMA
  page_pool: support non-split page with PP_FLAG_PAGE_FRAG
  pool_pool: avoid calling compound_head() for skb frag page
  page_pool: change BIAS_MAX to support incrementing
  skbuff: keep track of pp page when __skb_frag_ref() is called
  skbuff: only use pp_magic identifier for a skb' head page
  skbuff: remove unused skb->pp_recycle

 .../net/ethernet/hisilicon/hns3/hns3_enet.c   |  6 ---
 drivers/net/ethernet/marvell/mvneta.c         |  2 -
 .../net/ethernet/marvell/mvpp2/mvpp2_main.c   |  4 +-
 drivers/net/ethernet/marvell/sky2.c           |  2 +-
 drivers/net/ethernet/mellanox/mlx4/en_rx.c    |  2 +-
 drivers/net/ethernet/ti/cpsw.c                |  2 -
 drivers/net/ethernet/ti/cpsw_new.c            |  2 -
 include/linux/mm_types.h                      | 13 +-----
 include/linux/skbuff.h                        | 39 ++++++++----------
 include/net/page_pool.h                       | 31 ++++++++------
 net/core/page_pool.c                          | 40 +++++++------------
 net/core/skbuff.c                             | 36 ++++++-----------
 net/tls/tls_device.c                          |  2 +-
 13 files changed, 67 insertions(+), 114 deletions(-)

-- 
2.33.0