[PATCH net-next 0/3] net: ethernet: ti: cpsw: Add XDP support

[Ivan Khoronzhuk]

This patchset add 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 RFC:
https://lkml.org/lkml/2019/4/17/861

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

Based on net-next/master

Ivan Khoronzhuk (3):
  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          | 570 +++++++++++++++++++++---
 drivers/net/ethernet/ti/cpsw_ethtool.c  |  55 ++-
 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 +-
 7 files changed, 675 insertions(+), 106 deletions(-)

-- 
2.17.1