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(-)
