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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-16 04:42:13 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-16 04:42:13 +0300 |
commit | 9ff9b0d392ea08090cd1780fb196f36dbb586529 (patch) | |
tree | 276a3a5c4525b84dee64eda30b423fc31bf94850 /tools/testing/selftests/bpf/progs/profiler.h | |
parent | 840e5bb326bbcb16ce82dd2416d2769de4839aea (diff) | |
parent | 105faa8742437c28815b2a3eb8314ebc5fd9288c (diff) | |
download | linux-9ff9b0d392ea08090cd1780fb196f36dbb586529.tar.xz |
Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
- Add redirect_neigh() BPF packet redirect helper, allowing to limit
stack traversal in common container configs and improving TCP
back-pressure.
Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain.
- Expand netlink policy support and improve policy export to user
space. (Ge)netlink core performs request validation according to
declared policies. Expand the expressiveness of those policies
(min/max length and bitmasks). Allow dumping policies for particular
commands. This is used for feature discovery by user space (instead
of kernel version parsing or trial and error).
- Support IGMPv3/MLDv2 multicast listener discovery protocols in
bridge.
- Allow more than 255 IPv4 multicast interfaces.
- Add support for Type of Service (ToS) reflection in SYN/SYN-ACK
packets of TCPv6.
- In Multi-patch TCP (MPTCP) support concurrent transmission of data on
multiple subflows in a load balancing scenario. Enhance advertising
addresses via the RM_ADDR/ADD_ADDR options.
- Support SMC-Dv2 version of SMC, which enables multi-subnet
deployments.
- Allow more calls to same peer in RxRPC.
- Support two new Controller Area Network (CAN) protocols - CAN-FD and
ISO 15765-2:2016.
- Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit
kernel problem.
- Add TC actions for implementing MPLS L2 VPNs.
- Improve nexthop code - e.g. handle various corner cases when nexthop
objects are removed from groups better, skip unnecessary
notifications and make it easier to offload nexthops into HW by
converting to a blocking notifier.
- Support adding and consuming TCP header options by BPF programs,
opening the doors for easy experimental and deployment-specific TCP
option use.
- Reorganize TCP congestion control (CC) initialization to simplify
life of TCP CC implemented in BPF.
- Add support for shipping BPF programs with the kernel and loading
them early on boot via the User Mode Driver mechanism, hence reusing
all the user space infra we have.
- Support sleepable BPF programs, initially targeting LSM and tracing.
- Add bpf_d_path() helper for returning full path for given 'struct
path'.
- Make bpf_tail_call compatible with bpf-to-bpf calls.
- Allow BPF programs to call map_update_elem on sockmaps.
- Add BPF Type Format (BTF) support for type and enum discovery, as
well as support for using BTF within the kernel itself (current use
is for pretty printing structures).
- Support listing and getting information about bpf_links via the bpf
syscall.
- Enhance kernel interfaces around NIC firmware update. Allow
specifying overwrite mask to control if settings etc. are reset
during update; report expected max time operation may take to users;
support firmware activation without machine reboot incl. limits of
how much impact reset may have (e.g. dropping link or not).
- Extend ethtool configuration interface to report IEEE-standard
counters, to limit the need for per-vendor logic in user space.
- Adopt or extend devlink use for debug, monitoring, fw update in many
drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx,
dpaa2-eth).
- In mlxsw expose critical and emergency SFP module temperature alarms.
Refactor port buffer handling to make the defaults more suitable and
support setting these values explicitly via the DCBNL interface.
- Add XDP support for Intel's igb driver.
- Support offloading TC flower classification and filtering rules to
mscc_ocelot switches.
- Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as
fixed interval period pulse generator and one-step timestamping in
dpaa-eth.
- Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3)
offload.
- Add Lynx PHY/PCS MDIO module, and convert various drivers which have
this HW to use it. Convert mvpp2 to split PCS.
- Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as
7-port Mediatek MT7531 IP.
- Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver,
and wcn3680 support in wcn36xx.
- Improve performance for packets which don't require much offloads on
recent Mellanox NICs by 20% by making multiple packets share a
descriptor entry.
- Move chelsio inline crypto drivers (for TLS and IPsec) from the
crypto subtree to drivers/net. Move MDIO drivers out of the phy
directory.
- Clean up a lot of W=1 warnings, reportedly the actively developed
subsections of networking drivers should now build W=1 warning free.
- Make sure drivers don't use in_interrupt() to dynamically adapt their
code. Convert tasklets to use new tasklet_setup API (sadly this
conversion is not yet complete).
* tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits)
Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"
net, sockmap: Don't call bpf_prog_put() on NULL pointer
bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo
bpf, sockmap: Add locking annotations to iterator
netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements
net: fix pos incrementment in ipv6_route_seq_next
net/smc: fix invalid return code in smcd_new_buf_create()
net/smc: fix valid DMBE buffer sizes
net/smc: fix use-after-free of delayed events
bpfilter: Fix build error with CONFIG_BPFILTER_UMH
cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr
net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info
bpf: Fix register equivalence tracking.
rxrpc: Fix loss of final ack on shutdown
rxrpc: Fix bundle counting for exclusive connections
netfilter: restore NF_INET_NUMHOOKS
ibmveth: Identify ingress large send packets.
ibmveth: Switch order of ibmveth_helper calls.
cxgb4: handle 4-tuple PEDIT to NAT mode translation
selftests: Add VRF route leaking tests
...
Diffstat (limited to 'tools/testing/selftests/bpf/progs/profiler.h')
-rw-r--r-- | tools/testing/selftests/bpf/progs/profiler.h | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/profiler.h b/tools/testing/selftests/bpf/progs/profiler.h new file mode 100644 index 000000000000..3bac4fdd4bdf --- /dev/null +++ b/tools/testing/selftests/bpf/progs/profiler.h @@ -0,0 +1,177 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2020 Facebook */ +#pragma once + +#define TASK_COMM_LEN 16 +#define MAX_ANCESTORS 4 +#define MAX_PATH 256 +#define KILL_TARGET_LEN 64 +#define CTL_MAXNAME 10 +#define MAX_ARGS_LEN 4096 +#define MAX_FILENAME_LEN 512 +#define MAX_ENVIRON_LEN 8192 +#define MAX_PATH_DEPTH 32 +#define MAX_FILEPATH_LENGTH (MAX_PATH_DEPTH * MAX_PATH) +#define MAX_CGROUPS_PATH_DEPTH 8 + +#define MAX_METADATA_PAYLOAD_LEN TASK_COMM_LEN + +#define MAX_CGROUP_PAYLOAD_LEN \ + (MAX_PATH * 2 + (MAX_PATH * MAX_CGROUPS_PATH_DEPTH)) + +#define MAX_CAP_PAYLOAD_LEN (MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN) + +#define MAX_SYSCTL_PAYLOAD_LEN \ + (MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN + CTL_MAXNAME + MAX_PATH) + +#define MAX_KILL_PAYLOAD_LEN \ + (MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN + TASK_COMM_LEN + \ + KILL_TARGET_LEN) + +#define MAX_EXEC_PAYLOAD_LEN \ + (MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN + MAX_FILENAME_LEN + \ + MAX_ARGS_LEN + MAX_ENVIRON_LEN) + +#define MAX_FILEMOD_PAYLOAD_LEN \ + (MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN + MAX_FILEPATH_LENGTH + \ + MAX_FILEPATH_LENGTH) + +enum data_type { + INVALID_EVENT, + EXEC_EVENT, + FORK_EVENT, + KILL_EVENT, + SYSCTL_EVENT, + FILEMOD_EVENT, + MAX_DATA_TYPE_EVENT +}; + +enum filemod_type { + FMOD_OPEN, + FMOD_LINK, + FMOD_SYMLINK, +}; + +struct ancestors_data_t { + pid_t ancestor_pids[MAX_ANCESTORS]; + uint32_t ancestor_exec_ids[MAX_ANCESTORS]; + uint64_t ancestor_start_times[MAX_ANCESTORS]; + uint32_t num_ancestors; +}; + +struct var_metadata_t { + enum data_type type; + pid_t pid; + uint32_t exec_id; + uid_t uid; + gid_t gid; + uint64_t start_time; + uint32_t cpu_id; + uint64_t bpf_stats_num_perf_events; + uint64_t bpf_stats_start_ktime_ns; + uint8_t comm_length; +}; + +struct cgroup_data_t { + ino_t cgroup_root_inode; + ino_t cgroup_proc_inode; + uint64_t cgroup_root_mtime; + uint64_t cgroup_proc_mtime; + uint16_t cgroup_root_length; + uint16_t cgroup_proc_length; + uint16_t cgroup_full_length; + int cgroup_full_path_root_pos; +}; + +struct var_sysctl_data_t { + struct var_metadata_t meta; + struct cgroup_data_t cgroup_data; + struct ancestors_data_t ancestors_info; + uint8_t sysctl_val_length; + uint16_t sysctl_path_length; + char payload[MAX_SYSCTL_PAYLOAD_LEN]; +}; + +struct var_kill_data_t { + struct var_metadata_t meta; + struct cgroup_data_t cgroup_data; + struct ancestors_data_t ancestors_info; + pid_t kill_target_pid; + int kill_sig; + uint32_t kill_count; + uint64_t last_kill_time; + uint8_t kill_target_name_length; + uint8_t kill_target_cgroup_proc_length; + char payload[MAX_KILL_PAYLOAD_LEN]; + size_t payload_length; +}; + +struct var_exec_data_t { + struct var_metadata_t meta; + struct cgroup_data_t cgroup_data; + pid_t parent_pid; + uint32_t parent_exec_id; + uid_t parent_uid; + uint64_t parent_start_time; + uint16_t bin_path_length; + uint16_t cmdline_length; + uint16_t environment_length; + char payload[MAX_EXEC_PAYLOAD_LEN]; +}; + +struct var_fork_data_t { + struct var_metadata_t meta; + pid_t parent_pid; + uint32_t parent_exec_id; + uint64_t parent_start_time; + char payload[MAX_METADATA_PAYLOAD_LEN]; +}; + +struct var_filemod_data_t { + struct var_metadata_t meta; + struct cgroup_data_t cgroup_data; + enum filemod_type fmod_type; + unsigned int dst_flags; + uint32_t src_device_id; + uint32_t dst_device_id; + ino_t src_inode; + ino_t dst_inode; + uint16_t src_filepath_length; + uint16_t dst_filepath_length; + char payload[MAX_FILEMOD_PAYLOAD_LEN]; +}; + +struct profiler_config_struct { + bool fetch_cgroups_from_bpf; + ino_t cgroup_fs_inode; + ino_t cgroup_login_session_inode; + uint64_t kill_signals_mask; + ino_t inode_filter; + uint32_t stale_info_secs; + bool use_variable_buffers; + bool read_environ_from_exec; + bool enable_cgroup_v1_resolver; +}; + +struct bpf_func_stats_data { + uint64_t time_elapsed_ns; + uint64_t num_executions; + uint64_t num_perf_events; +}; + +struct bpf_func_stats_ctx { + uint64_t start_time_ns; + struct bpf_func_stats_data* bpf_func_stats_data_val; +}; + +enum bpf_function_id { + profiler_bpf_proc_sys_write, + profiler_bpf_sched_process_exec, + profiler_bpf_sched_process_exit, + profiler_bpf_sys_enter_kill, + profiler_bpf_do_filp_open_ret, + profiler_bpf_sched_process_fork, + profiler_bpf_vfs_link, + profiler_bpf_vfs_symlink, + profiler_bpf_max_function_id +}; |