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From: Larysa Zaremba <larysa.zaremba@intel.com>
To: bpf@vger.kernel.org
Cc: Larysa Zaremba <larysa.zaremba@intel.com>,
	ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
	martin.lau@linux.dev, song@kernel.org, yhs@fb.com,
	john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com,
	haoluo@google.com, jolsa@kernel.org,
	David Ahern <dsahern@gmail.com>, Jakub Kicinski <kuba@kernel.org>,
	Willem de Bruijn <willemb@google.com>,
	Jesper Dangaard Brouer <brouer@redhat.com>,
	Anatoly Burakov <anatoly.burakov@intel.com>,
	Alexander Lobakin <alexandr.lobakin@intel.com>,
	Magnus Karlsson <magnus.karlsson@gmail.com>,
	Maryam Tahhan <mtahhan@redhat.com>,
	xdp-hints@xdp-project.net, netdev@vger.kernel.org
Subject: [xdp-hints] [PATCH bpf-next v3 00/21] XDP metadata via kfuncs for ice
Date: Wed, 19 Jul 2023 20:37:13 +0200	[thread overview]
Message-ID: <20230719183734.21681-1-larysa.zaremba@intel.com> (raw)

This series introduces XDP hints via kfuncs [0] to the ice driver.

Series brings the following existing hints to the ice driver:
 - HW timestamp
 - RX hash with type

Series also introduces new hints and adds their implementation
to ice and veth:
 - VLAN tag with protocol
 - Checksum status

The data above can now be accessed by XDP and userspace (AF_XDP) programs.
They can also be checked with xdp_metadata test and xdp_hw_metadata program.

[0] https://patchwork.kernel.org/project/netdevbpf/cover/20230119221536.3349901-1-sdf@google.com/

v2:
https://lore.kernel.org/bpf/20230703181226.19380-1-larysa.zaremba@intel.com/
v1:
https://lore.kernel.org/all/20230512152607.992209-1-larysa.zaremba@intel.com/

Changes since v2:
- redesign checksum hint, so now it gives full status
- rename vlan_tag -> vlan_tci, where applicable
- use open_netns() and close_netns() in xdp_metadata
- improve VLAN hint documentation
- replace CFI with DEI
- use VLAN_VID_MASK in xdp_metadata
- make vlan_get_tag() return -ENODATA
- remove unused rx_ptype in ice_xsk.c
- fix ice timestamp code division between patches

Changes since v1:
- directly return RX hash, RX timestamp and RX checksum status
  in skb-common functions
- use intermediate enum value for checksum status in ice
- get rid of ring structure dependency in ice kfunc implementation
- make variables const, when possible, in ice implementation
- use -ENODATA instead of -EOPNOTSUPP for driver implementation
- instead of having 2 separate functions for c-tag and s-tag,
  use 1 function that outputs both VLAN tag and protocol ID
- improve documentation for introduced hints
- update xdp_metadata selftest to test new hints
- implement new hints in veth, so they can be tested in xdp_metadata
- parse VLAN tag in xdp_hw_metadata

Aleksander Lobakin (1):
  net, xdp: allow metadata > 32

Larysa Zaremba (20):
  ice: make RX hash reading code more reusable
  ice: make RX HW timestamp reading code more reusable
  ice: make RX checksum checking code more reusable
  ice: Make ptype internal to descriptor info processing
  ice: Introduce ice_xdp_buff
  ice: Support HW timestamp hint
  ice: Support RX hash XDP hint
  ice: Support XDP hints in AF_XDP ZC mode
  xdp: Add VLAN tag hint
  ice: Implement VLAN tag hint
  ice: use VLAN proto from ring packet context in skb path
  xdp: Add checksum hint
  ice: Implement checksum hint
  selftests/bpf: Allow VLAN packets in xdp_hw_metadata
  selftests/bpf: Add flags and new hints to xdp_hw_metadata
  veth: Implement VLAN tag and checksum XDP hint
  net: make vlan_get_tag() return -ENODATA instead of -EINVAL
  selftests/bpf: Use AF_INET for TX in xdp_metadata
  selftests/bpf: Check VLAN tag and proto in xdp_metadata
  selftests/bpf: check checksum state in xdp_metadata

 Documentation/networking/xdp-rx-metadata.rst  |  11 +-
 drivers/net/ethernet/intel/ice/ice.h          |   2 +
 drivers/net/ethernet/intel/ice/ice_ethtool.c  |   2 +-
 .../net/ethernet/intel/ice/ice_lan_tx_rx.h    | 412 +++++++++---------
 drivers/net/ethernet/intel/ice/ice_lib.c      |   2 +-
 drivers/net/ethernet/intel/ice/ice_main.c     |  23 +
 drivers/net/ethernet/intel/ice/ice_ptp.c      |  27 +-
 drivers/net/ethernet/intel/ice/ice_ptp.h      |  15 +-
 drivers/net/ethernet/intel/ice/ice_txrx.c     |  19 +-
 drivers/net/ethernet/intel/ice/ice_txrx.h     |  29 +-
 drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 346 ++++++++++++---
 drivers/net/ethernet/intel/ice/ice_txrx_lib.h |  18 +-
 drivers/net/ethernet/intel/ice/ice_xsk.c      |  26 +-
 drivers/net/veth.c                            |  46 ++
 include/linux/if_vlan.h                       |   4 +-
 include/linux/netdevice.h                     |   5 +
 include/linux/skbuff.h                        |  13 +-
 include/net/xdp.h                             |  58 ++-
 kernel/bpf/offload.c                          |   4 +
 net/core/xdp.c                                |  57 +++
 .../selftests/bpf/prog_tests/xdp_metadata.c   | 213 +++++----
 .../selftests/bpf/progs/xdp_hw_metadata.c     |  47 +-
 .../selftests/bpf/progs/xdp_metadata.c        |  10 +
 tools/testing/selftests/bpf/xdp_hw_metadata.c |  79 +++-
 tools/testing/selftests/bpf/xdp_metadata.h    |  39 +-
 25 files changed, 1063 insertions(+), 444 deletions(-)

-- 
2.41.0


             reply	other threads:[~2023-07-19 18:41 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-19 18:37 Larysa Zaremba [this message]
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 01/21] ice: make RX hash reading code more reusable Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 02/21] ice: make RX HW timestamp " Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 03/21] ice: make RX checksum checking " Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 04/21] ice: Make ptype internal to descriptor info processing Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 05/21] ice: Introduce ice_xdp_buff Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 06/21] ice: Support HW timestamp hint Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 07/21] ice: Support RX hash XDP hint Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 08/21] ice: Support XDP hints in AF_XDP ZC mode Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 09/21] xdp: Add VLAN tag hint Larysa Zaremba
2023-07-20 21:49   ` [xdp-hints] " Stanislav Fomichev
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 10/21] ice: Implement " Larysa Zaremba
2023-07-20 18:50   ` [xdp-hints] " Simon Horman
2023-07-21  7:38     ` Zaremba, Larysa
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 11/21] ice: use VLAN proto from ring packet context in skb path Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 12/21] xdp: Add checksum hint Larysa Zaremba
2023-07-19 21:42   ` [xdp-hints] " Willem de Bruijn
2023-07-20  9:57     ` Zaremba, Larysa
2023-07-20 10:10       ` Zaremba, Larysa
2023-07-20 13:55         ` Willem de Bruijn
2023-07-20 16:03           ` Zaremba, Larysa
2023-07-20 22:27             ` Willem de Bruijn
2023-07-21  8:01               ` Zaremba, Larysa
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 13/21] ice: Implement " Larysa Zaremba
2023-07-19 18:59   ` [xdp-hints] " Alexei Starovoitov
2023-07-19 21:51     ` Willem de Bruijn
2023-07-20  9:47       ` Zaremba, Larysa
2023-07-20 15:14         ` Alexei Starovoitov
2023-07-20 15:41           ` Zaremba, Larysa
2023-07-20 21:58             ` Stanislav Fomichev
2023-07-20 22:24               ` Willem de Bruijn
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 14/21] selftests/bpf: Allow VLAN packets in xdp_hw_metadata Larysa Zaremba
2023-07-20 21:58   ` [xdp-hints] " Stanislav Fomichev
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 15/21] net, xdp: allow metadata > 32 Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 16/21] selftests/bpf: Add flags and new hints to xdp_hw_metadata Larysa Zaremba
2023-07-20 22:00   ` [xdp-hints] " Stanislav Fomichev
2023-07-21  7:41     ` Zaremba, Larysa
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 17/21] veth: Implement VLAN tag and checksum XDP hint Larysa Zaremba
2023-07-20 22:02   ` [xdp-hints] " Stanislav Fomichev
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 18/21] net: make vlan_get_tag() return -ENODATA instead of -EINVAL Larysa Zaremba
2023-07-20 22:02   ` [xdp-hints] " Stanislav Fomichev
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 19/21] selftests/bpf: Use AF_INET for TX in xdp_metadata Larysa Zaremba
2023-07-20 22:05   ` [xdp-hints] " Stanislav Fomichev
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 20/21] selftests/bpf: Check VLAN tag and proto " Larysa Zaremba
2023-07-20 22:14   ` [xdp-hints] " Stanislav Fomichev
2023-07-21  7:46     ` Zaremba, Larysa
2023-07-21 16:44       ` Stanislav Fomichev
2023-07-25  7:11         ` Larysa Zaremba
2023-07-19 18:37 ` [xdp-hints] [PATCH bpf-next v3 21/21] selftests/bpf: check checksum state " Larysa Zaremba
2023-07-20 22:14   ` [xdp-hints] " Stanislav Fomichev

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