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Type: improvement
Change-Id: I4008cadfd5141f921afbdc09a3ebcd1dcf88eb29
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Type: feature
Change-Id: I2c14f82393d11fc05c6d229f5c58603ab5c0f14d
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Pretty interesting to see how long plugins take to load.
Type: improvement
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: If496eb73b2e1fd9dd714142cd5195fa7ccd93ebd
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Inspired by a real-life conundrum: scenario X involves a vpp crash in
ip4-load-balance because vnet_buffer(b)->ip.adj_index[VLIB_TX] is
(still) set to ~0.
The problem takes most of a day to occur, and we need to see the
broken packet's graph trajectory, metadata, etc. to understand the
problem.
Fix a signed/unsigned ASSERT bug in vlib_get_trace_count().
Rename elog_post_mortem_dump() -> vlib_post_mortem_dump(), add
dispatch trace post-mortem dump.
Add FILTER_FLAG_POST_MORTEM so we can (putatively) capture a ludicrous
number of buffer traces, without actually using more than one dispatch
cycle's worth of memory.
Type: improvement
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: If093202ef071df46e290370bd9b33bf6560d30e6
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vlib_main_t *vlib_get_main_not_inline(void)
vlib_thread_main_t *vlib_get_thread_main_not_inline(void)
elog_main_t *vlib_get_elog_main_not_inline()
Type: refactor
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I6de306d567283ad28ef34c9be0cf27452aecbf6c
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Type: improvement
Change-Id: If2e907967c9b75997b581ff0c058bd5c15e823f5
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Type: improvement
Change-Id: I13517bff4129497644e0efc3495d0ee7897fe5a7
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Type: fix
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: Ibad744788e200ce012ad88ff59c2c34920742454
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Callbacks for monitoring and performance measurement:
- Add new callback list type, with context
- Add callbacks for API, CLI, and barrier sync
- Modify node dispatch callback to pass plugin-specific context
- Modify perfmon plugin to keep PMC samples local to the plugin
- Include process nodes in dispatch callback
- Pass dispatch function return value to callback
Type: refactor
Signed-off-by: Tom Seidenberg <tseidenb@cisco.com>
Change-Id: I28b06c58490611e08d76ff5b01b2347ba2109b22
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Type: fix
Change-Id: If8dbbcb46193fd057fe8d704058609a3a8787d6c
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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Type: improvement
Change-Id: I81df4b61d1f0b8c1df77c1ee9bebcb491e155b69
Signed-off-by: Damjan Marion <damarion@cisco.com>
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- add ability to pass data together with interrupt
- avoid locking for local interrupts (same thread)
Type: improvement
Change-Id: I73a2ab2e716bb887a1f02c87788ae83e329f9b40
Signed-off-by: Damjan Marion <damarion@cisco.com>
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i2c follows its only use case - the original 82599 driver - into
extras/deprecated.
cj is/was an emergency debug tool unused in several years. Move to
extras/deprecated/vlib
Type: refactor
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: Ib55b65373f62630db295c562974bd8f2456c3107
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When configured at compile time via the cmake
VPP_BUFFER_FAULT_INJECTOR option, the buffer allocator will appear to
fail a certain fraction of the time.
By default, the allocator succeeds 80% of the time. Detailed command
line configuration options are available, but only when the image has
been compiled with cmake option described above:
vlib { buffer-alloc-success-rate [0.0 ... 1.0]
buffer-alloc-success-seed <nnnn> }
Modify vlib_buffer_pool_create(...) so 0 is always an invalid buffer
index.
Debug images: add checks for bad buffer index enqueues, and also
verify that f->n_vectors doesn't accidentally map one or more
instances of the frame poison pattern 0xfefefefe.
Type: improvement
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: Iab939858014463d1e664682805013d334d6fcbe5
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Use exponential smoothing. Each sample has a half-life of 1
second. reported_rate(t) = reported_rate(t-1) * K + rate(t)*(1-K)
Sample every 20ms, i.e. 50 samples per second
K = exp (-1.0/20.0);
K = 0.95;
Type: feature
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I9aea5dd5fecfaefffb78245316adb4bf62eb2bd4
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Type: refactor
Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I13b239cd572ae6dfaec07019d3d9b7c0ed3edcfa
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Allow a plugin to override (suppress loading of) other plugins. This
mechanism allows a developer to prevent specific plugins from being
loaded.
To do so, provide an "overrides" list in the plugin definition:
VLIB_PLUGIN_REGISTER () =
{
<snip>
.overrides = "avf_plugin.so,ioam_plugin.so,dpdk_plugin.so",
};
or some such. Simply list the plugins in question as shown above. The
.overrides structure member is limited to 256 octets. The named .elf
section mechanism used to discover the vlib_plugin_registration_t's
precludes the use of a variable-length array of strings.
Use the vlib log to eliminate plugin and built-in vat plugin loader
console spew.
Added vlib_log_register_class_rate_limit(...) to allow procedural
configuration of the log rate-limit. We *never* want to rate-limit
plugin loader messages.
Type: feature
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I0a9327b8cf5508482f057342783252112cb44170
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A handy tool in case you need to know which metadata will be changed
when a packet visits a certain node.
Reflect metadata changes into format functions used by the
vpp-specific wireshark dissector.
Type: feature
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I96fe8a24db4082bb29fe2a33cc522e8616a3a1bb
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Needed a bit of foreach_vlib_main(...) action to turn on/off all
instances of vm->dispatch_pcap_enable, and to pick up the pcap_main_t
pointer from vlib_global_main.
Type: fix
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I49b69b87934c7dc7a9835cd07aa2c5c4d3c79f18
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Type: refactor
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I4b77879b0a84fdec3c1518a972cf003d5135222d
Signed-off-by: Ole Troan <ot@cisco.com>
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The 9af7e2e87e used a comparison that fd is >= 0 to check that
the pcap needs closing. While the pcap_close() function does
reset the file descriptor to -1, the freshly initialized structure
has it equal to 0.
This causes the VPP to close stdin if the packets are being seen
on pg interface without the capture file being opened.
This triggers the vpp attempting to read from STDIN
(another bug), which results in running out of memory.
Change-Id: I11d61422701500a9b3e0dd52d59383f297d57f54
Type: fix
Fixes: 9af7e2e87e
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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Separate debug CLI arg parsing from the underlying action
function. Fixes a number of subtle ordering dependencies, and will
allow us to add a binary API to control the feature at some point in
the future.
Type: refactor
Ticket: VPP-1770
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: Id0dbeda06dad20e756c941c691e2088ce3c50ec7
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Separate debug CLI arg parsing from the underlying action
function. Fixes a number of subtle ordering dependencies, and will
allow us to add a binary API to control the feature at some point in
the future.
Type: refactor
Ticket: VPP-1762
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I1240fe3f61a0acf5ee9faed60d6ad3386e72e569
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when use pcap cli to capture pcakets into two files rx01.pcap && rx02.pcap,
the first time:
1)pcap rx trace on max 100 intfc any file rx01.pcap
2)......the process of capture data to buffer......
3)pcap rx trace off
the second time:
4)pcap rx trace on max 100 intfc any file rx02.pcap
5)......the process of capture data to buffer......
6)pcap rx trace off
the pcap_write function bug in this two lines
pm->n_packets_captured = 0;
if (pm->n_packets_captured >= pm->n_packets_to_capture) referring to calling pcap_close()
will result in that the twice pcap cli both writes the packets
into rx01.pcap, but nothing into rx02.pcap. Beside, the rx02.pcap
file will not be created.
solution: separate the pcap_close() out of pcap_write()
Change-Id: Iedeb46f9cf0a4cb12449fd75a4014f95f3bb3fa8
Signed-off-by: Jack Xu <jack.c.xu@ericsson.com>
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The fast path almost always has to deal with the real
pointers. Deriving the frame pointer from a frame_index requires a
load of the 32bit frame_index from memory, another 64bit load of the
heap base pointer and some calculations.
Lets store the full pointer instead and do a single 64bit load only.
This helps avoiding problems when the heap is grown and frames are
allocated below vm->heap_aligned_base.
Type: refactor
Change-Id: Ifa6e6e984aafe1e2755bff80f0a4dfcddee3623c
Signed-off-by: Andreas Schultz <andreas.schultz@travelping.com>
Signed-off-by: Dave Barach <dave@barachs.net>
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Cleaned up a few instances of side-bet elog_string hash table
usage. Elog_string handles that problem itself.
Add cli commands to vat to initialize, enable/disable, and save an
event log.
Event logging at the same time in both vpp and vat yields a pair
of event logs which can be merged by the "test_elog" tool.
Type: refactor
Change-Id: I8d6a72206f2309c967ea1630077fba31aef47f93
Signed-off-by: Dave Barach <dave@barachs.net>
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Type: feature
Change-Id: Ia3d9a47679202c2a47cd3746b50e86c6b8627ef6
Signed-off-by: Dave Barach <dave@barachs.net>
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Otherwise, all N worker threads try to sort the list at the same time:
a good way to have a bad day.
This approach performs *far* better than maintaing order by adding a
spin-lock. By direct measurement w/ elog + g2: 11 threads execute the
per-thread init function list in 22us, vs. 50ms with a CLIB_PAUSE()
enabled spin-lock.
Change-Id: I1745f2a213c0561260139a60114dcb981e0c64e5
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: Iddeb3a1b0e20706e72ec8f74dabc60b342f003ba
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: Iaa5cd89791b0dfdb56a75009c564581d10696d83
Signed-off-by: Dave Barach <dave@barachs.net>
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Call setjmp and mark the setjmp context valid just prior to entering the
vpp main loop.
Change-Id: I26d5cd6a624cb2a497d81eb85a62365621b3b469
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I5cfa0f6eee67156bf87907fcf8a39f16d68a0905
Signed-off-by: Dave Barach <dave@barachs.net>
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It turns out that for scalar sizes 0..24, frames are always the same
size. That range includes all current use-cases - and then some - so
get rid of the hash table. Old code preserved under #ifdef
VLIB_SUPPORTS_ARBITRARY_SCALAR_SIZES.
Change-Id: Ic005c7143c9639f77d1a0fadd2fc0e90dccb68c1
Signed-off-by: Dave Barach <dbarach@cisco.com>
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Change-Id: I8b59b2e1c0525abf4b0492e50a7af57df4cd3ce2
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I7f7a459f25d64ea5fa36e30d7dccc667bc19c5a9
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
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Change-Id: I01c4f5755d579282773ac227b0bc24f8ddbb2bd1
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: I195c8eabc0ee67880f1e85fc7594b00be6b563e3
Signed-off-by: Dave Barach <dave@barachs.net>
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Add a new command to dump vlib graph as graphviz/dot file
Change-Id: I43fc072cff8153ac500e5fbc6641a3705c2e995e
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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This patch introduces following changes:
- deprecated free lists which are not used and not compatible
with external buffer managers (i.e. DPDK)
- introduces native support for per-numa buffer pools
- significantly improves performance of buffer alloc and free
Change-Id: I4a8e723ae47056717afd6cac0efe87cb731b5be7
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: I3a33fb81f31ed473811e9e7a6197b81135913865
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: I79b213b34c6071d14acf1922f89037a4a5a36c45
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Add missing pre-input node runtime fork and refork code.
unix-epoll-input runs on all threads; each instance needs its own
runtime stats.
Change-Id: I16b02e42d0c95f863161176c4bb9f9917bef809d
Signed-off-by: Dave Barach <dave@barachs.net>
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As a FUD reduction measure, this patch implements 2-way parallel
counter collection. Synthetic stat component counter pairs run at the
same time. Running two counters (of any kind) at the same time
naturally reduces the aggregate time required by an approximate
factor-of-2, depending on whether an even or odd number of stats have
been requested.
I don't completely buy the argument that computing synthetic stats
such as instructions-per-clock will be inaccurate if component counter
values are collected sequentially. Given uniform traffic pattern, it
must make no difference.
As the collection interval increases, the difference between serial
and parallel component counter collection will approach zero, see also
the Central Limit theorem.
Change-Id: I36ebdcf125e8882cca8a1929ec58f17fba1ad8f1
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I1c12e2941cae198ededbb65eb5be51a4eabe2c1b
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: I0ba5175be077c40556f2a3ce629c5bbcd71e0a81
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: I3bb1d9f83dd08f4b93acd4a281bfec0674e39c2e
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: I6048c6a51efa826ac333f7d15919cb87dd766d74
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: Ia34a4278eedc8cf450688b1fa0291e1f976868d3
Signed-off-by: Dave Barach <dave@barachs.net>
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VPP graph dispatch trace record description:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Major Version | Minor Version | NStrings | ProtoHint |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Buffer index (big endian) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ VPP graph node name ... ... | NULL octet |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Buffer Metadata ... ... | NULL octet |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Buffer Opaque ... ... | NULL octet |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Buffer Opaque 2 ... ... | NULL octet |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| VPP ASCII packet trace (if NStrings > 4) | NULL octet |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Packet data (up to 16K) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Graph dispatch records comprise a version stamp, an indication of how
many NULL-terminated strings will follow the record header, and a
protocol hint.
The buffer index allows downstream consumers of these data to easily
filter/track single packets as they traverse the forwarding
graph. FWIW, the 32-bit buffer index is stored in big endian format.
As of this writing, major version = 1, minor version = 0. Nstrings
will be either 4 or 5.
Here is the current set of protocol hints:
typedef enum
{
VLIB_NODE_PROTO_HINT_NONE = 0,
VLIB_NODE_PROTO_HINT_ETHERNET,
VLIB_NODE_PROTO_HINT_IP4,
VLIB_NODE_PROTO_HINT_IP6,
VLIB_NODE_PROTO_HINT_TCP,
VLIB_NODE_PROTO_HINT_UDP,
VLIB_NODE_N_PROTO_HINTS,
} vlib_node_proto_hint_t;
Example: VLIB_NODE_PROTO_HINT_IP6 means that the first octet of packet
data SHOULD be 0x60, and should begin an ipv6 packet header.
Change-Id: Idf310bad80cc0e4207394c80f18db5f77c378741
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I56f25d653b71a25c70e6c5c1a93dd9c5158f2079
Signed-off-by: Dave Barach <dave@barachs.net>
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