AuxXxilium/linux_dsm_epyc7002
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a67edbf4fb
linux_dsm_epyc7002/include/trace/events
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Daniel Borkmann a67edbf4fb bpf: add initial bpf tracepoints 
This work adds a number of tracepoints to paths that are either
considered slow-path or exception-like states, where monitoring or
inspecting them would be desirable.

For bpf(2) syscall, tracepoints have been placed for main commands
when they succeed. In XDP case, tracepoint is for exceptions, that
is, f.e. on abnormal BPF program exit such as unknown or XDP_ABORTED
return code, or when error occurs during XDP_TX action and the packet
could not be forwarded.

Both have been split into separate event headers, and can be further
extended. Worst case, if they unexpectedly should get into our way in
future, they can also removed [1]. Of course, these tracepoints (like
any other) can be analyzed by eBPF itself, etc. Example output:

  # ./perf record -a -e bpf:* sleep 10
  # ./perf script
  sock_example  6197 [005]   283.980322:      bpf:bpf_map_create: map type=ARRAY ufd=4 key=4 val=8 max=256 flags=0
  sock_example  6197 [005]   283.980721:       bpf:bpf_prog_load: prog=a5ea8fa30ea6849c type=SOCKET_FILTER ufd=5
  sock_example  6197 [005]   283.988423:   bpf:bpf_prog_get_type: prog=a5ea8fa30ea6849c type=SOCKET_FILTER
  sock_example  6197 [005]   283.988443: bpf:bpf_map_lookup_elem: map type=ARRAY ufd=4 key=[06 00 00 00] val=[00 00 00 00 00 00 00 00]
  [...]
  sock_example  6197 [005]   288.990868: bpf:bpf_map_lookup_elem: map type=ARRAY ufd=4 key=[01 00 00 00] val=[14 00 00 00 00 00 00 00]
       swapper     0 [005]   289.338243:    bpf:bpf_prog_put_rcu: prog=a5ea8fa30ea6849c type=SOCKET_FILTER

  [1] https://lwn.net/Articles/705270/

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-25 13:17:47 -05:00
..
9p.h net/9p/tracing: Export enums in tracepoints to userspace 2015-04-08 09:39:59 -04:00
afs.h afs: Refcount the afs_call struct 2017-01-09 11:10:02 +00:00
alarmtimer.h ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
asoc.h ASoC: trace: fix printing jack name 2016-02-26 10:52:48 +09:00
bcache.h block: better op and flags encoding 2016-10-28 08:48:16 -06:00
block.h block: better op and flags encoding 2016-10-28 08:48:16 -06:00
bpf.h bpf: add initial bpf tracepoints 2017-01-25 13:17:47 -05:00
btrfs.h btrfs: make tracepoint format strings more compact 2017-01-09 11:27:07 +01:00
cgroup.h cgroup: add tracepoints for basic operations 2016-08-10 11:23:44 -04:00
clk.h clk: Add tracepoints for hardware operations 2015-03-12 12:18:51 -07:00
cma.h mm: cma: add trace events for CMA allocations and freeings 2015-04-15 16:35:19 -07:00
compaction.h mm, compaction: rename COMPACT_PARTIAL to COMPACT_SUCCESS 2016-10-07 18:46:27 -07:00
context_tracking.h context_tracking: User/kernel broundary cross trace events 2013-08-14 17:14:48 +02:00
cpuhp.h cpu/hotplug: Add multi instance support 2016-09-02 20:05:05 +02:00
devlink.h devlink: fix trace format string 2016-07-14 22:16:05 -07:00
dma_fence.h dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
ext4.h don't bother with ->d_inode->i_sb - it's always equal to ->d_sb 2016-04-10 17:11:51 -04:00
f2fs.h for-f2fs-4.10 2016-12-14 09:07:36 -08:00
fib6.h ipv6, trace: fix tos reporting on fib6_table_lookup 2016-03-20 13:44:34 -04:00
fib.h net: Make table id type u32 2015-09-01 14:32:44 -07:00
filelock.h locks: sprinkle some tracepoints around the file locking code 2016-01-08 11:38:13 -05:00
filemap.h tracing, mm: Record pfn instead of pointer to struct page 2015-04-13 11:44:52 -03:00
gpio.h tracing: gpio: Add Kconfig option for enabling/disabling trace events 2015-10-20 21:56:10 -04:00
host1x.h gpu: host1x: Use struct host1x_bo pointers in traces 2014-11-13 16:11:32 +01:00
hswadsp.h Merge remote-tracking branches 'asoc/topic/ml26124', 'asoc/topic/of', 'asoc/topic/omap', 'asoc/topic/pxa' and 'asoc/topic/rcar' into asoc-next 2014-03-12 23:04:35 +00:00
huge_memory.h mm, thp: convert from optimistic swapin collapsing to conservative 2016-07-26 16:19:19 -07:00
i2c.h tracing: Have the reg function allow to fail 2016-12-09 09:13:30 -05:00
intel_ish.h HID: intel-ish-hid: ipc layer 2016-08-17 11:13:07 +02:00
intel-sst.h tracing: Add TRACE_SYSTEM_VAR to intel-sst 2015-04-07 12:31:12 -04:00
iommu.h iommu: Change trace unmap api to report unmapped size 2015-01-19 15:19:31 +01:00
ipi.h tracepoint: add generic tracepoint definitions for IPI tracing 2014-08-07 20:40:40 -04:00
irq.h irq: Fix typo in tracepoint.xml 2016-09-29 10:03:38 +02:00
jbd2.h jbd2: trace when lock_buffer in do_get_write_access takes a long time 2013-04-21 16:47:54 -04:00
kmem.h Nothing major this round. Mostly small clean ups and fixes. 2016-03-24 10:52:25 -07:00
kvm.h KVM: x86: add KVM_CAP_X2APIC_API 2016-07-14 09:03:57 +02:00
libata.h ata: Handle ATA NCQ NO-DATA commands correctly 2016-07-15 08:08:13 -04:00
lock.h
mce.h x86/mce/AMD: Save MCA_IPID in MCE struct on SMCA systems 2016-09-13 15:23:12 +02:00
mdio.h net/phy: add trace events for mdio accesses 2016-11-24 11:55:43 -05:00
migrate.h mm: tracing: Export enums in tracepoints to user space 2015-04-08 09:40:01 -04:00
mmc.h mmc: core: Provide tracepoints for request processing 2016-05-02 10:33:11 +02:00
mmflags.h mm: get rid of __GFP_OTHER_NODE 2017-01-10 18:31:55 -08:00
module.h tracing: %pF is only for function pointers 2015-03-25 08:57:22 -04:00
napi.h net: fixup for tracepoint napi:napi_poll 2016-07-15 15:55:01 -07:00
net.h net: rename vlan_tx_* helpers since "tx" is misleading there 2015-01-13 17:51:08 -05:00
nilfs2.h nilfs2: add tracepoints for analyzing reading and writing metadata files 2015-11-06 17:50:42 -08:00
nmi.h x86: Add NMI duration tracepoints 2013-06-23 11:52:58 +02:00
oom.h
page_isolation.h mm/page_isolation: fix tracepoint to mirror check function behavior 2016-04-01 17:03:37 -05:00
page_ref.h mm/page_ref: add tracepoint to track down page reference manipulation 2016-03-17 15:09:34 -07:00
pagemap.h mm: pagemap: avoid unnecessary overhead when tracepoints are deactivated 2014-08-06 18:01:20 -07:00
power_cpu_migrate.h ARM: bL_switcher/trace: Add trace trigger for trace bootstrapping 2013-09-23 18:47:30 -04:00
power.h cpufreq: intel_pstate: Add io_boost trace 2016-09-16 23:55:30 +02:00
printk.h printk, tracing: Avoiding unneeded blank lines 2016-07-15 15:52:41 -04:00
random.h tracing: %pF is only for function pointers 2015-03-25 08:57:22 -04:00
rcu.h torture: Trace long read-side delays 2016-11-14 10:46:30 -08:00
regulator.h
rpm.h
rxrpc.h rxrpc: Add some more tracing 2017-01-05 11:39:12 +00:00
sched.h sched/core: Fix trace_sched_switch() 2015-10-06 17:08:15 +02:00
scsi.h scsi-trace: define ZBC_IN and ZBC_OUT 2016-04-11 16:57:09 -04:00
signal.h
skb.h
sock.h
spi.h spi: Provide common spi_message processing loop 2013-10-11 20:09:50 +01:00
spmi.h spmi: add command tracepoints for SPMI 2015-08-05 12:27:09 -07:00
sunrpc.h SUNRPC: Add tracepoints for dropped and deferred requests 2016-07-13 15:53:43 -04:00
sunvnet.h sunvnet: Add support for perf LDC event tracing 2016-02-07 14:13:05 -05:00
swiotlb.h swiotlb: Add swiotlb=noforce debug option 2016-12-19 09:05:20 -05:00
syscalls.h tracepoint: Fix sparse warnings in tracepoint.c 2014-04-09 10:12:11 -04:00
target.h target: Minimize SCSI header #include directives 2015-06-02 08:03:25 -07:00
task.h tracing: Don't make assumptions about length of string on task rename 2015-08-31 10:47:14 -04:00
thermal_power_allocator.h thermal: consistently use int for temperatures 2015-08-03 23:15:50 +08:00
thermal.h thermal: trace: migrating thermal traces to use TRACE_DEFINE_ENUM() macros 2016-03-15 07:51:40 +08:00
thp.h powerpc/thp: Add tracepoints to track hugepage invalidate 2014-08-13 18:20:42 +10:00
timer.h ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
tlb.h tracing: Remove duplicate checks for online CPUs 2016-03-08 11:19:28 -05:00
udp.h
v4l2.h [media] media: videobuf2: Move timestamp to vb2_buffer 2015-12-18 13:53:31 -02:00
vb2.h [media] media: videobuf2: Move timestamp to vb2_buffer 2015-12-18 13:53:31 -02:00
vmscan.h mm, vmscan: add classzone information to tracepoints 2016-07-28 16:07:41 -07:00
vsock_virtio_transport_common.h VSOCK: Introduce virtio_vsock_common.ko 2016-08-02 02:57:29 +03:00
wbt.h blk-wbt: add general throttling mechanism 2016-11-10 13:53:32 -07:00
workqueue.h
writeback.h mm: move vmscan writes and file write accounting to the node 2016-07-28 16:07:41 -07:00
xdp.h bpf: add initial bpf tracepoints 2017-01-25 13:17:47 -05:00
xen.h x86: expose number of page table levels on Kconfig level 2015-04-14 16:49:02 -07:00