netdev - pull-request: bpf-next 2018-07-20

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Message-Id: <20180720220110.9823-1-daniel@iogearbox.net>
Date:   Sat, 21 Jul 2018 00:01:10 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     davem@...emloft.net
Cc:     daniel@...earbox.net, ast@...nel.org, netdev@...r.kernel.org
Subject: pull-request: bpf-next 2018-07-20

Hi David,

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) Add sharing of BPF objects within one ASIC: this allows for reuse of
   the same program on multiple ports of a device, and therefore gains
   better code store utilization. On top of that, this now also enables
   sharing of maps between programs attached to different ports of a
   device, from Jakub.

2) Cleanup in libbpf and bpftool's Makefile to reduce unneeded feature
   detections and unused variable exports, also from Jakub.

3) First batch of RCU annotation fixes in prog array handling, i.e.
   there are several __rcu markers which are not correct as well as
   some of the RCU handling, from Roman.

4) Two fixes in BPF sample files related to checking of the prog_cnt
   upper limit from sample loader, from Dan.

5) Minor cleanup in sockmap to remove a set but not used variable,
   from Colin.

Please consider pulling these changes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git

Thanks a lot!

----------------------------------------------------------------

The following changes since commit 301f935be9e09a1bf188bd8262a4db0aeeac2b50:

  sch_cake: Fix tin order when set through skb->priority (2018-07-16 14:47:45 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git 

for you to fetch changes up to 8ae71e76cf1f7b8de5c75356a00840e54c93e7a5:

  Merge branch 'bpf-offload-sharing' (2018-07-18 15:11:23 +0200)

----------------------------------------------------------------
Colin Ian King (1):
      bpf: sockmap: remove redundant pointer sg

Dan Carpenter (2):
      samples: bpf: ensure that we don't load over MAX_PROGS programs
      samples/bpf: test_cgrp2_sock2: fix an off by one

Daniel Borkmann (1):
      Merge branch 'bpf-offload-sharing'

Jakub Kicinski (13):
      tools: libbpf: remove libelf-getphdrnum feature detection
      tools: bpftool: don't pass FEATURES_DUMP to libbpf
      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: rename bpf_offload_dev_match() to bpf_offload_prog_map_match()
      bpf: offload: aggregate offloads per-device
      bpf: offload: keep the offload state per-ASIC
      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

Roman Gushchin (2):
      bpf: bpf_prog_array_alloc() should return a generic non-rcu pointer
      bpf: fix rcu annotations in compute_effective_progs()

 drivers/net/ethernet/netronome/nfp/bpf/main.c      |  23 +++
 drivers/net/ethernet/netronome/nfp/bpf/main.h      |   4 +
 drivers/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 +
 .../net/ethernet/netronome/nfp/nfp_net_common.c    |   2 +
 drivers/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                                |  13 +-
 kernel/bpf/cgroup.c                                |   7 +-
 kernel/bpf/core.c                                  |   2 +-
 kernel/bpf/offload.c                               | 223 ++++++++++++++++-----
 kernel/bpf/sockmap.c                               |   3 -
 kernel/bpf/verifier.c                              |   2 +-
 samples/bpf/bpf_load.c                             |   3 +
 samples/bpf/test_cgrp2_sock2.c                     |   2 +-
 tools/bpf/bpftool/Makefile                         |   2 +-
 tools/lib/bpf/Makefile                             |   6 +-
 tools/testing/selftests/bpf/test_offload.py        | 151 +++++++++++++-
 21 files changed, 555 insertions(+), 101 deletions(-)