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Date: Fri, 27 Apr 2018 03:14:42 +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 2018-04-27
Hi David,
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Add extensive BPF helper description into include/uapi/linux/bpf.h
and a new script bpf_helpers_doc.py which allows for generating a
man page out of it. Thus, every helper in BPF now comes with proper
function signature, detailed description and return code explanation,
from Quentin.
2) Migrate the BPF collect metadata tunnel tests from BPF samples over
to the BPF selftests and further extend them with v6 vxlan, geneve
and ipip tests, simplify the ipip tests, improve documentation and
convert to bpf_ntoh*() / bpf_hton*() api, from William.
3) Currently, helpers that expect ARG_PTR_TO_MAP_{KEY,VALUE} can only
access stack and packet memory. Extend this to allow such helpers
to also use map values, which enabled use cases where value from
a first lookup can be directly used as a key for a second lookup,
from Paul.
4) Add a new helper bpf_skb_get_xfrm_state() for tc BPF programs in
order to retrieve XFRM state information containing SPI, peer
address and reqid values, from Eyal.
5) Various optimizations in nfp driver's BPF JIT in order to turn ADD
and SUB instructions with negative immediate into the opposite
operation with a positive immediate such that nfp can better fit
small immediates into instructions. Savings in instruction count
up to 4% have been observed, from Jakub.
6) Add the BPF prog's gpl_compatible flag to struct bpf_prog_info
and add support for dumping this through bpftool, from Jiri.
7) Move the BPF sockmap samples over into BPF selftests instead since
sockmap was rather a series of tests than sample anyway and this way
this can be run from automated bots, from John.
8) Follow-up fix for bpf_adjust_tail() helper in order to make it work
with generic XDP, from Nikita.
9) Some follow-up cleanups to BTF, namely, removing unused defines from
BTF uapi header and renaming 'name' struct btf_* members into name_off
to make it more clear they are offsets into string section, from Martin.
10) Remove test_sock_addr from TEST_GEN_PROGS in BPF selftests since
not run directly but invoked from test_sock_addr.sh, from Yonghong.
11) Remove redundant ret assignment in sample BPF loader, from Wang.
12) Add couple of missing files to BPF selftest's gitignore, from Anders.
Please consider pulling these changes from:
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
There are two trivial merge conflicts while pulling:
1) Remove samples/sockmap/Makefile since all sockmap tests have been
moved to selftests.
2) Add both hunks from tools/testing/selftests/bpf/.gitignore to the
file since git should ignore all of them.
Thanks a lot!
----------------------------------------------------------------
The following changes since commit 48d7a07ba355c7056e66adcdd35379d12e48252b:
hv_netvsc: select needed ucs2_string routine (2018-04-22 21:07:03 -0400)
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 c0885f61bbb6a89c35397d3a8fe49c35822cde81:
samples, bpf: remove redundant ret assignment in bpf_load_program() (2018-04-27 00:47:06 +0200)
----------------------------------------------------------------
Anders Roxell (1):
selftests: bpf: update .gitignore with missing file
Daniel Borkmann (6):
Merge branch 'bpf-xfrm-states'
Merge branch 'bpf-map-val-as-key'
Merge branch 'bpf-sockmap-selftests'
Merge branch 'bpf-optimize-neg-sums'
Merge branch 'bpf-tunnel-metadata-selftests'
Merge branch 'bpf-uapi-helper-doc'
Eyal Birger (2):
bpf: add helper for getting xfrm states
samples/bpf: extend test_tunnel_bpf.sh with xfrm state test
Jakub Kicinski (4):
nfp: bpf: remove double space
nfp: bpf: optimize add/sub of a negative constant
nfp: bpf: tabularize generations of compare operations
nfp: bpf: optimize comparisons to negative constants
Jiri Olsa (3):
bpf: Add gpl_compatible flag to struct bpf_prog_info
tools, bpf: Sync bpf.h uapi header
tools, bpftool: Display license GPL compatible in prog show/list
John Fastabend (5):
bpf: sockmap, code sockmap_test in C
bpf: sockmap, add a set of tests to run by default
bpf: sockmap, add selftests
bpf: sockmap, remove samples program
bpf: reduce runtime of test_sockmap tests
Martin KaFai Lau (1):
bpf: btf: Clean up btf.h in uapi
Nikita V. Shirokov (2):
bpf: fix virtio-net's length calc for XDP_PASS
bpf: fix xdp_generic for bpf_adjust_tail usecase
Paul Chaignon (2):
bpf: allow map helpers access to map values directly
tools/bpf: add verifier tests for accesses to map values
Quentin Monnet (10):
bpf: add script and prepare bpf.h for new helpers documentation
bpf: add documentation for eBPF helpers (01-11)
bpf: add documentation for eBPF helpers (12-22)
bpf: add documentation for eBPF helpers (23-32)
bpf: add documentation for eBPF helpers (33-41)
bpf: add documentation for eBPF helpers (42-50)
bpf: add documentation for eBPF helpers (51-57)
bpf: add documentation for eBPF helpers (58-64)
bpf: add documentation for eBPF helpers (65-66)
bpf: update bpf.h uapi header for tools
Wang Sheng-Hui (1):
samples, bpf: remove redundant ret assignment in bpf_load_program()
William Tu (2):
selftests/bpf: bpf tunnel test.
samples/bpf: remove the bpf tunnel testsuite.
Yonghong Song (1):
tools/bpf: remove test_sock_addr from TEST_GEN_PROGS
drivers/net/ethernet/netronome/nfp/bpf/jit.c | 231 +--
drivers/net/ethernet/netronome/nfp/bpf/main.h | 6 +-
drivers/net/virtio_net.c | 2 +-
include/uapi/linux/bpf.h | 1784 ++++++++++++++-----
include/uapi/linux/btf.h | 8 +-
kernel/bpf/btf.c | 20 +-
kernel/bpf/syscall.c | 1 +
kernel/bpf/verifier.c | 24 +-
net/core/dev.c | 4 +-
net/core/filter.c | 48 +
samples/bpf/Makefile | 1 -
samples/bpf/bpf_load.c | 2 -
samples/bpf/test_tunnel_bpf.sh | 319 ----
samples/sockmap/Makefile | 75 -
samples/sockmap/sockmap_test.sh | 488 ------
scripts/bpf_helpers_doc.py | 421 +++++
tools/bpf/bpftool/Documentation/bpftool-prog.rst | 3 +-
tools/bpf/bpftool/prog.c | 3 +
tools/include/uapi/linux/bpf.h | 1785 +++++++++++++++-----
tools/include/uapi/linux/btf.h | 8 +-
tools/include/uapi/linux/if_link.h | 39 +
tools/lib/bpf/btf.c | 2 +-
tools/lib/bpf/libbpf.c | 4 +-
tools/lib/bpf/libbpf.h | 2 +
tools/testing/selftests/bpf/.gitignore | 1 +
tools/testing/selftests/bpf/Makefile | 10 +-
tools/testing/selftests/bpf/bpf_helpers.h | 4 +-
.../testing/selftests/bpf/test_sockmap.c | 880 ++++++++--
.../testing/selftests/bpf/test_sockmap_kern.c | 35 +-
tools/testing/selftests/bpf/test_tunnel.sh | 729 ++++++++
.../testing/selftests/bpf/test_tunnel_kern.c | 263 ++-
tools/testing/selftests/bpf/test_verifier.c | 266 +++
32 files changed, 5400 insertions(+), 2068 deletions(-)
delete mode 100755 samples/bpf/test_tunnel_bpf.sh
delete mode 100644 samples/sockmap/Makefile
delete mode 100755 samples/sockmap/sockmap_test.sh
create mode 100755 scripts/bpf_helpers_doc.py
rename samples/sockmap/sockmap_user.c => tools/testing/selftests/bpf/test_sockmap.c (57%)
rename samples/sockmap/sockmap_kern.c => tools/testing/selftests/bpf/test_sockmap_kern.c (91%)
create mode 100755 tools/testing/selftests/bpf/test_tunnel.sh
rename samples/bpf/tcbpf2_kern.c => tools/testing/selftests/bpf/test_tunnel_kern.c (68%)
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