Hi David,
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Add cgroup local storage for BPF programs, which provides a fast
accessible memory for storing various per-cgroup data like number
of transmitted packets, etc, from Roman.
2) Support bpf_get_socket_cookie() BPF helper in several more program
types that have a full socket available, from Andrey.
3) Significantly improve the performance of perf events which are
reported from BPF offload. Also convert a couple of BPF AF_XDP
samples overto use libbpf, both from Jakub.
4) seg6local LWT provides the End.DT6 action, which allows to
decapsulate an outer IPv6 header containing a Segment Routing Header.
Adds this action now to the seg6local BPF interface, from Mathieu.
5) Do not mark dst register as unbounded in MOV64 instruction when
both src and dst register are the same, from Arthur.
6) Define u_smp_rmb() and u_smp_wmb() to their respective barrier
instructions on arm64 for the AF_XDP sample code, from Brian.
7) Convert the tcp_client.py and tcp_server.py BPF selftest scripts
over from Python 2 to Python 3, from Jeremy.
8) Enable BTF build flags to the BPF sample code Makefile, from Taeung.
9) Remove an unnecessary rcu_read_lock() in run_lwt_bpf(), from Taehee.
10) Several improvements to the README.rst from the BPF documentation
to make it more consistent with RST format, from Tobin.
11) Replace all occurrences of strerror() by calls to strerror_r()
in libbpf and fix a FORTIFY_SOURCE build error along with it,
from Thomas.
12) Fix a bug in bpftool's get_btf() function to correctly propagate
an error via PTR_ERR(), from Yue.
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 aea5f654e6b78a0c976f7a25950155932c77a53f:
net/sched: add skbprio scheduler (2018-07-24 14:44:00 -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 85fc4b16aaf05fc8978d242c556a1711dce15cf8:
bpf: introduce update_effective_progs() (2018-08-07 14:29:55 +0200)
----------------------------------------------------------------
Andrey Ignatov (4):
bpf: Support bpf_get_socket_cookie in more prog types
bpf: Sync bpf.h to tools/
selftests/bpf: Add bpf_get_socket_cookie to bpf_helpers.h
selftests/bpf: Test for get_socket_cookie
Arthur Fabre (1):
bpf: verifier: MOV64 don't mark dst reg unbounded
Brian Brooks (1):
samples/bpf: xdpsock: order memory on AArch64
Daniel Borkmann (4):
Merge branch 'bpf-nfp-perf-event-improvements'
Merge branch 'bpf-convert-more-samples'
Merge branch 'bpf-docs-rst-improvements'
Merge branch 'bpf-cgroup-local-storage'
Jakub Kicinski (12):
nfp: move repr handling on RX path
nfp: allow control message reception on data queues
nfp: bpf: pass raw data buffer to nfp_bpf_event_output()
nfp: bpf: allow receiving perf events on data queues
nfp: bpf: remember maps by ID
nfp: bpf: improve map offload info messages
tools: libbpf: handle NULL program gracefully in bpf_program__nth_fd()
tools: libbpf: add bpf_object__find_program_by_title()
samples: bpf: convert xdp_fwd_user.c to libbpf
samples: bpf: convert xdpsock_user.c to libbpf
nfp: fix variable dereferenced before check in nfp_app_ctrl_rx_raw()
nfp: bpf: xdp_adjust_tail support
Jeremy Cline (1):
bpf: Add Python 3 support to selftests scripts for bpf
Mathieu Xhonneux (1):
bpf: add End.DT6 action to bpf_lwt_seg6_action helper
Roman Gushchin (16):
bpf: add ability to charge bpf maps memory dynamically
bpf: introduce cgroup storage maps
bpf: pass a pointer to a cgroup storage using pcpu variable
bpf: allocate cgroup storage entries on attaching bpf programs
bpf: extend bpf_prog_array to store pointers to the cgroup storage
bpf/verifier: introduce BPF_PTR_TO_MAP_VALUE
bpf: don't allow create maps of cgroup local storages
bpf: introduce the bpf_get_local_storage() helper function
bpf: sync bpf.h to tools/
bpftool: add support for CGROUP_STORAGE maps
bpf/test_run: support cgroup local storage
selftests/bpf: add verifier cgroup storage tests
selftests/bpf: add a cgroup storage test
samples/bpf: extend test_cgrp2_attach2 test to use cgroup storage
selftests/bpf: fix a typo in map in map test
bpf: introduce update_effective_progs()
Taehee Yoo (1):
lwt_bpf: remove unnecessary rcu_read_lock in run_lwt_bpf
Taeung Song (2):
tools/bpftool: ignore build products
samples/bpf: Add BTF build flags to Makefile
Thomas Richter (1):
bpf: fix build error in libbpf with EXTRA_CFLAGS="-Wp,
-D_FORTIFY_SOURCE=2 -O2"
Tobin C. Harding (4):
docs: bpf: Rename README.rst to index.rst
docs: bpf: Add toctree to index
docs: Add bpf/index to top level index
docs: bpf: Capitalise document heading
YueHaibing (1):
bpf: btf: fix inconsistent IS_ERR and PTR_ERR
Documentation/bpf/{README.rst => index.rst} | 10 +-
Documentation/index.rst | 1 +
drivers/media/rc/bpf-lirc.c | 10 +-
drivers/net/ethernet/netronome/nfp/bpf/cmsg.c | 25 +-
drivers/net/ethernet/netronome/nfp/bpf/fw.h | 1 +
drivers/net/ethernet/netronome/nfp/bpf/jit.c | 59 +++-
drivers/net/ethernet/netronome/nfp/bpf/main.c | 18 +-
drivers/net/ethernet/netronome/nfp/bpf/main.h | 11 +-
drivers/net/ethernet/netronome/nfp/bpf/offload.c | 63 ++--
drivers/net/ethernet/netronome/nfp/bpf/verifier.c | 7 +
drivers/net/ethernet/netronome/nfp/nfp_app.c | 2 +
drivers/net/ethernet/netronome/nfp/nfp_app.h | 18 +
drivers/net/ethernet/netronome/nfp/nfp_asm.h | 1 +
.../net/ethernet/netronome/nfp/nfp_net_common.c | 40 ++-
drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h | 1 +
include/linux/bpf-cgroup.h | 54 +++
include/linux/bpf.h | 25 +-
include/linux/bpf_types.h | 3 +
include/net/seg6_local.h | 4 +-
include/uapi/linux/bpf.h | 41 ++-
kernel/bpf/Makefile | 1 +
kernel/bpf/cgroup.c | 157 +++++----
kernel/bpf/core.c | 77 +++--
kernel/bpf/helpers.c | 20 ++
kernel/bpf/local_storage.c | 378 +++++++++++++++++++++
kernel/bpf/map_in_map.c | 3 +-
kernel/bpf/syscall.c | 61 +++-
kernel/bpf/verifier.c | 44 ++-
net/bpf/test_run.c | 13 +-
net/core/filter.c | 139 ++++++--
net/core/lwt_bpf.c | 2 -
net/ipv6/seg6_local.c | 50 ++-
samples/bpf/Makefile | 21 +-
samples/bpf/test_cgrp2_attach2.c | 21 +-
samples/bpf/xdp_fwd_user.c | 34 +-
samples/bpf/xdpsock_user.c | 43 ++-
tools/bpf/.gitignore | 5 +
tools/bpf/bpftool/.gitignore | 2 +
tools/bpf/bpftool/map.c | 3 +-
tools/include/uapi/linux/bpf.h | 41 ++-
tools/lib/bpf/libbpf.c | 57 +++-
tools/lib/bpf/libbpf.h | 3 +
tools/testing/selftests/bpf/Makefile | 7 +-
tools/testing/selftests/bpf/bpf_helpers.h | 4 +
tools/testing/selftests/bpf/socket_cookie_prog.c | 60 ++++
tools/testing/selftests/bpf/tcp_client.py | 12 +-
tools/testing/selftests/bpf/tcp_server.py | 16 +-
tools/testing/selftests/bpf/test_cgroup_storage.c | 130 +++++++
tools/testing/selftests/bpf/test_socket_cookie.c | 225 ++++++++++++
tools/testing/selftests/bpf/test_verifier.c | 172 +++++++++-
50 files changed, 1894 insertions(+), 301 deletions(-)
rename Documentation/bpf/{README.rst => index.rst} (82%)
create mode 100644 kernel/bpf/local_storage.c
create mode 100644 tools/bpf/.gitignore
create mode 100644 tools/testing/selftests/bpf/socket_cookie_prog.c
create mode 100644 tools/testing/selftests/bpf/test_cgroup_storage.c
create mode 100644 tools/testing/selftests/bpf/test_socket_cookie.c
