From: Jesper Dangaard Brouer <brouer@redhat.com>
To: bpf@vger.kernel.org
Cc: xdp-hints@xdp-project.net, Jesper Dangaard Brouer <brouer@redhat.com>
Subject: [xdp-hints] [PATCH RFC bpf-next 0/9] Introduce XDP-hints via BTF
Date: Tue, 28 Jun 2022 18:30:33 +0200 [thread overview]
Message-ID: <165643378969.449467.13237011812569188299.stgit@firesoul> (raw)
This patchset expose the traditional hardware offload hints to XDP and
rely on BTF to expose the layout to users. More advanced use-case with
driver specific offloads will likely be in followup patches.
The users/consumers are (as described in [1]):
- XDP BPF-progs
- XDP to SKB conversion gaining HW offloads
- AF_XDP can consume BTF info in userspace
- Chained BPF-progs can communicate state via metadata
This is still RFC as the following features are missing:
- Exposing XDP-hints indication in AF_XDP descriptor
- Exporting what XDP-hints structs are avail per driver
Two drivers i40e and mvneta gets XDP-hints in this patchset.
[1] https://github.com/xdp-project/xdp-project/blob/master/conference/LLC2022/xdp_hints_hw_metadata-final.pdf
---
Jesper Dangaard Brouer (8):
i40e: Refactor i40e_ptp_rx_hwtstamp
bpf: export btf functions for modules
net: create xdp_hints_common and set functions
net: add net_device feature flag for XDP-hints
xdp: controlling XDP-hints from BPF-prog via helper
i40e: refactor i40e_rx_checksum with helper
i40e: add XDP-hints handling
net: use XDP-hints in xdp_frame to SKB conversion
Lorenzo Bianconi (1):
mvneta: add XDP-hints support
drivers/net/ethernet/intel/i40e/i40e.h | 1 +
drivers/net/ethernet/intel/i40e/i40e_main.c | 34 +++
drivers/net/ethernet/intel/i40e/i40e_ptp.c | 36 +++-
drivers/net/ethernet/intel/i40e/i40e_txrx.c | 222 ++++++++++++++++----
drivers/net/ethernet/marvell/mvneta.c | 61 +++++-
include/linux/btf.h | 2 +
include/linux/netdev_features.h | 3 +-
include/net/xdp.h | 181 +++++++++++++++-
include/uapi/linux/bpf.h | 43 ++++
kernel/bpf/btf.c | 13 +-
net/core/filter.c | 45 ++++
net/core/xdp.c | 73 ++++++-
net/ethtool/common.c | 1 +
13 files changed, 644 insertions(+), 71 deletions(-)
--
next reply other threads:[~2022-06-28 16:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-28 16:30 Jesper Dangaard Brouer [this message]
2022-06-28 16:30 ` [xdp-hints] [PATCH RFC bpf-next 1/9] i40e: Refactor i40e_ptp_rx_hwtstamp Jesper Dangaard Brouer
2022-06-28 16:30 ` [xdp-hints] [PATCH RFC bpf-next 2/9] bpf: export btf functions for modules Jesper Dangaard Brouer
2022-06-28 16:30 ` [xdp-hints] [PATCH RFC bpf-next 3/9] net: create xdp_hints_common and set functions Jesper Dangaard Brouer
2022-06-28 16:30 ` [xdp-hints] [PATCH RFC bpf-next 4/9] net: add net_device feature flag for XDP-hints Jesper Dangaard Brouer
2022-06-28 16:30 ` [xdp-hints] [PATCH RFC bpf-next 5/9] xdp: controlling XDP-hints from BPF-prog via helper Jesper Dangaard Brouer
2022-06-29 14:20 ` [xdp-hints] " Toke Høiland-Jørgensen
2022-07-01 9:10 ` Jesper Dangaard Brouer
2022-07-01 12:09 ` Toke Høiland-Jørgensen
2022-06-28 16:31 ` [xdp-hints] [PATCH RFC bpf-next 6/9] i40e: refactor i40e_rx_checksum with helper Jesper Dangaard Brouer
2022-06-28 16:31 ` [xdp-hints] [PATCH RFC bpf-next 7/9] i40e: add XDP-hints handling Jesper Dangaard Brouer
2022-07-18 9:38 ` [xdp-hints] " Maryam Tahhan
2022-07-18 10:27 ` Maryam Tahhan
2022-06-28 16:31 ` [xdp-hints] [PATCH RFC bpf-next 8/9] net: use XDP-hints in xdp_frame to SKB conversion Jesper Dangaard Brouer
2022-06-28 16:31 ` [xdp-hints] [PATCH RFC bpf-next 9/9] mvneta: add XDP-hints support Jesper Dangaard Brouer
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