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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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