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    Subject[PATCH v3 net-next 0/7] net: ethernet: ti: cpsw: Add XDP support
    Date
    This patchset adds XDP support for TI cpsw driver and base it on
    page_pool allocator. It was verified on af_xdp socket drop,
    af_xdp l2f, ebpf XDP_DROP, XDP_REDIRECT, XDP_PASS, XDP_TX.

    It was verified with following configs enabled:
    CONFIG_JIT=y
    CONFIG_BPFILTER=y
    CONFIG_BPF_SYSCALL=y
    CONFIG_XDP_SOCKETS=y
    CONFIG_BPF_EVENTS=y
    CONFIG_HAVE_EBPF_JIT=y
    CONFIG_BPF_JIT=y
    CONFIG_CGROUP_BPF=y

    Link on previous v2:
    https://lkml.org/lkml/2019/5/30/1315

    Also regular tests with iperf2 were done in order to verify impact on
    regular netstack performance, compared with base commit:
    https://pastebin.com/JSMT0iZ4

    v2..v3:
    - each rxq and ndev has its own page pool

    v1..v2:
    - combined xdp_xmit functions
    - used page allocation w/o refcnt juggle
    - unmapped page for skb netstack
    - moved rxq/page pool allocation to open/close pair
    - added several preliminary patches:
    net: page_pool: add helper function to retrieve dma addresses
    net: page_pool: add helper function to unmap dma addresses
    net: ethernet: ti: cpsw: use cpsw as drv data
    net: ethernet: ti: cpsw_ethtool: simplify slave loops


    Based on net-next/master

    Ilias Apalodimas (2):
    net: page_pool: add helper function to retrieve dma addresses
    net: page_pool: add helper function to unmap dma addresses

    Ivan Khoronzhuk (5):
    net: ethernet: ti: cpsw: use cpsw as drv data
    net: ethernet: ti: cpsw_ethtool: simplify slave loops
    net: ethernet: ti: davinci_cpdma: add dma mapped submit
    net: ethernet: ti: davinci_cpdma: return handler status
    net: ethernet: ti: cpsw: add XDP support

    drivers/net/ethernet/ti/Kconfig | 1 +
    drivers/net/ethernet/ti/cpsw.c | 555 ++++++++++++++++++++----
    drivers/net/ethernet/ti/cpsw_ethtool.c | 100 ++++-
    drivers/net/ethernet/ti/cpsw_priv.h | 9 +-
    drivers/net/ethernet/ti/davinci_cpdma.c | 122 ++++--
    drivers/net/ethernet/ti/davinci_cpdma.h | 6 +-
    drivers/net/ethernet/ti/davinci_emac.c | 18 +-
    include/net/page_pool.h | 6 +
    net/core/page_pool.c | 7 +
    9 files changed, 685 insertions(+), 139 deletions(-)

    --
    2.17.1

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