netdev - [PATCH bpf-next 0/9] bpf: offload program and map sharing

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 16 Jul 2018 19:37:14 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     alexei.starovoitov@...il.com, daniel@...earbox.net
Cc:     oss-drivers@...ronome.com, netdev@...r.kernel.org,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH bpf-next 0/9] bpf: offload program and map sharing

Hi!

This patchset adds support for sharing BPF objects within one ASIC.
This will allow us to reuse of the same program on multiple ports of
a device leading to better code store utilization.  It also enables
sharing maps between programs attached to different ports of a device.

Jakub Kicinski (9):
  netdevsim: add switch_id attribute
  netdevsim: add shared netdevsim devices
  netdevsim: associate bound programs with shared dev
  nfp: add .ndo_init() and .ndo_uninit() callbacks
  bpf: offload: aggregate offloads per-device
  bpf: offload: allow program and map sharing per-ASIC
  netdevsim: allow program sharing between devices
  nfp: bpf: allow program sharing within ASIC
  selftests/bpf: add test for sharing objects between netdevs

 drivers/net/ethernet/netronome/nfp/bpf/main.c |  23 ++
 drivers/net/ethernet/netronome/nfp/bpf/main.h |   4 +
 .../net/ethernet/netronome/nfp/bpf/offload.c  |  10 +-
 drivers/net/ethernet/netronome/nfp/nfp_app.c  |  17 ++
 drivers/net/ethernet/netronome/nfp/nfp_app.h  |   8 +
 .../ethernet/netronome/nfp/nfp_net_common.c   |   2 +
 .../net/ethernet/netronome/nfp/nfp_net_repr.c |   2 +
 drivers/net/netdevsim/bpf.c                   |  50 +++-
 drivers/net/netdevsim/netdev.c                | 103 +++++++-
 drivers/net/netdevsim/netdevsim.h             |  23 +-
 include/linux/bpf.h                           |  10 +-
 kernel/bpf/offload.c                          | 223 ++++++++++++++----
 kernel/bpf/verifier.c                         |   2 +-
 tools/testing/selftests/bpf/test_offload.py   | 151 +++++++++++-
 14 files changed, 543 insertions(+), 85 deletions(-)

-- 
2.17.1