[PATCH net-next v6 00/21] ice: add PFCP filter support

From: Alexander Lobakin
Date: Wed Mar 27 2024 - 11:31:03 EST

Add support for creating PFCP filters in switchdev mode. Add pfcp module
that allows to create a PFCP-type netdev. The netdev then can be passed to
tc when creating a filter to indicate that PFCP filter should be created.

To add a PFCP filter, a special netdev must be created and passed to tc
command:

ip link add pfcp0 type pfcp
tc filter add dev eth0 ingress prio 1 flower pfcp_opts \
1:12ab/ff:fffffffffffffff0 skip_hw action mirred egress redirect \
dev pfcp0

Changes in iproute2 [1] are required to use pfcp_opts in tc.

ICE COMMS package is required as it contains PFCP profiles.

Part of this patchset modifies IP_TUNNEL_*_OPTs, which were previously
stored in a __be16. All possible values have already been used, making
it impossible to add new ones.

* 1-3: add new bitmap_{read,write}(), which is used later in the IP
tunnel flags code (from Alexander's ARM64 MTE series[2]);
* 4-14: some bitmap code preparations also used later in IP tunnels;
* 15-17: convert IP tunnel flags from __be16 to a bitmap;
* 18-21: add PFCP module and support for it in ice.

[1] https://lore.kernel.org/netdev/20230614091758.11180-1-marcin.szycik@xxxxxxxxxxxxxxx
[2] https://lore.kernel.org/linux-kernel/20231218124033.551770-1-glider@xxxxxxxxxx

Alexander Lobakin (14):
bitops: add missing prototype check
bitops: make BYTES_TO_BITS() treewide-available
bitops: let the compiler optimize {__,}assign_bit()
linkmode: convert linkmode_{test,set,clear,mod}_bit() to macros
s390/cio: rename bitmap_size() -> idset_bitmap_size()
fs/ntfs3: add prefix to bitmap_size() and use BITS_TO_U64()
btrfs: rename bitmap_set_bits() -> btrfs_bitmap_set_bits()
tools: move alignment-related macros to new <linux/align.h>
bitmap: introduce generic optimized bitmap_size()
bitmap: make bitmap_{get,set}_value8() use bitmap_{read,write}()
lib/bitmap: add compile-time test for __assign_bit() optimization
ip_tunnel: use a separate struct to store tunnel params in the kernel
ip_tunnel: convert __be16 tunnel flags to bitmaps
net: net_test: add tests for IP tunnel flags conversion helpers

Alexander Potapenko (2):
lib/test_bitmap: add tests for bitmap_{read,write}()
lib/test_bitmap: use pr_info() for non-error messages

Marcin Szycik (2):
ice: refactor ICE_TC_FLWR_FIELD_ENC_OPTS
ice: Add support for PFCP hardware offload in switchdev

Michal Swiatkowski (1):
pfcp: always set pfcp metadata

Syed Nayyar Waris (1):
lib/bitmap: add bitmap_{read,write}()

Wojciech Drewek (1):
pfcp: add PFCP module

drivers/net/Kconfig | 13 +
drivers/net/Makefile | 1 +
net/core/Makefile | 2 +-
.../net/ethernet/intel/ice/ice_flex_type.h | 4 +-
.../ethernet/intel/ice/ice_protocol_type.h | 12 +
drivers/net/ethernet/intel/ice/ice_switch.h | 2 +
drivers/net/ethernet/intel/ice/ice_tc_lib.h | 8 +-
.../ethernet/mellanox/mlx5/core/en/tc_tun.h | 2 +-
.../ethernet/mellanox/mlxsw/spectrum_ipip.h | 2 +-
fs/ntfs3/ntfs_fs.h | 4 +-
include/linux/bitmap.h | 95 ++++--
include/linux/bitops.h | 23 +-
include/linux/cpumask.h | 2 +-
include/linux/linkmode.h | 27 +-
include/linux/netdevice.h | 7 +-
include/net/dst_metadata.h | 10 +-
include/net/flow_dissector.h | 2 +-
include/net/gre.h | 70 ++--
include/net/ip6_tunnel.h | 4 +-
include/net/ip_tunnels.h | 139 ++++++--
include/net/pfcp.h | 90 ++++++
include/net/udp_tunnel.h | 4 +-
include/uapi/linux/if_tunnel.h | 36 +++
include/uapi/linux/pkt_cls.h | 14 +
tools/include/linux/align.h | 12 +
tools/include/linux/bitmap.h | 9 +-
tools/include/linux/bitops.h | 2 +
tools/include/linux/mm.h | 5 +-
drivers/md/dm-clone-metadata.c | 5 -
drivers/net/bareudp.c | 19 +-
drivers/net/ethernet/intel/ice/ice_ddp.c | 9 +
drivers/net/ethernet/intel/ice/ice_switch.c | 85 +++++
drivers/net/ethernet/intel/ice/ice_tc_lib.c | 68 +++-
.../mellanox/mlx5/core/en/tc_tun_encap.c | 6 +-
.../mellanox/mlx5/core/en/tc_tun_geneve.c | 12 +-
.../mellanox/mlx5/core/en/tc_tun_gre.c | 8 +-
.../mellanox/mlx5/core/en/tc_tun_vxlan.c | 9 +-
.../net/ethernet/mellanox/mlx5/core/en_tc.c | 16 +-
.../ethernet/mellanox/mlxsw/spectrum_ipip.c | 56 ++--
.../ethernet/mellanox/mlxsw/spectrum_span.c | 10 +-
.../ethernet/netronome/nfp/flower/action.c | 27 +-
drivers/net/geneve.c | 44 ++-
drivers/net/pfcp.c | 302 ++++++++++++++++++
drivers/net/vxlan/vxlan_core.c | 14 +-
drivers/s390/cio/idset.c | 12 +-
fs/btrfs/free-space-cache.c | 8 +-
fs/ntfs3/bitmap.c | 4 +-
fs/ntfs3/fsntfs.c | 2 +-
fs/ntfs3/index.c | 11 +-
fs/ntfs3/super.c | 2 +-
kernel/trace/trace_probe.c | 2 -
lib/math/prime_numbers.c | 2 -
lib/test_bitmap.c | 203 ++++++++++--
net/bridge/br_vlan_tunnel.c | 9 +-
net/core/filter.c | 26 +-
net/core/flow_dissector.c | 20 +-
net/core/{gso_test.c => net_test.c} | 129 +++++++-
net/ipv4/fou_bpf.c | 2 +-
net/ipv4/gre_demux.c | 2 +-
net/ipv4/ip_gre.c | 144 +++++----
net/ipv4/ip_tunnel.c | 109 +++++--
net/ipv4/ip_tunnel_core.c | 82 +++--
net/ipv4/ip_vti.c | 41 ++-
net/ipv4/ipip.c | 33 +-
net/ipv4/ipmr.c | 2 +-
net/ipv4/udp_tunnel_core.c | 5 +-
net/ipv6/addrconf.c | 3 +-
net/ipv6/ip6_gre.c | 85 ++---
net/ipv6/ip6_tunnel.c | 14 +-
net/ipv6/sit.c | 38 ++-
net/netfilter/ipvs/ip_vs_core.c | 6 +-
net/netfilter/ipvs/ip_vs_xmit.c | 20 +-
net/netfilter/nft_tunnel.c | 44 +--
net/openvswitch/flow_netlink.c | 61 ++--
net/psample/psample.c | 26 +-
net/sched/act_tunnel_key.c | 36 +--
net/sched/cls_flower.c | 134 +++++++-
tools/perf/util/probe-finder.c | 4 +-
78 files changed, 1988 insertions(+), 624 deletions(-)
create mode 100644 include/net/pfcp.h
create mode 100644 tools/include/linux/align.h
create mode 100644 drivers/net/pfcp.c
rename net/core/{gso_test.c => net_test.c} (67%)

---
>From v5[3]:
* 6.9-rc1;
* move IP tunnel flags KUnit test from the bitmap test suite to the
networking KUnit (CONFIG_NET_TEST) (Yury);
* pick tags (Yury, Peter); now the entire series is fully tagged
(except the above tests);
* no functional changes besides the tests.

>From v4[4]:
* rebase on top of 6.8-rc1;
* collect all the dependencies together in one series (did I get it
right? :s);
* no functional changes.

[3] https://lore.kernel.org/netdev/20240201122216.2634007-1-aleksander.lobakin@xxxxxxxxx
[4] https://lore.kernel.org/netdev/20231207164911.14330-1-marcin.szycik@xxxxxxxxxxxxxxx

v3: https://lore.kernel.org/intel-wired-lan/20230721071532.613888-1-marcin.szycik@xxxxxxxxxxxxxxx
v2: https://lore.kernel.org/intel-wired-lan/20230607112606.15899-1-marcin.szycik@xxxxxxxxxxxxxxx
v1: https://lore.kernel.org/intel-wired-lan/20230601131929.294667-1-marcin.szycik@xxxxxxxxxxxxxxx
--
2.44.0