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seen while reading through the code.
Type: style
Change-Id: I7a2f021b9f06d0eebb2ea3d0cafb6955ccb14781
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
(cherry picked from commit d29422cbeeefb58d0213b295b35d04a673b380e7)
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Type: fix
Some cli processes, including configuring an test flow
on an i40e interface consume more than the currently
available stack space.
Signed-off-by: Chenmin Sun <chenmin.sun@intel.com>
Change-Id: I3df53d251cd43286f94647384d6e50a463bad15c
(cherry picked from commit 2fd44a00aa26188ca75f0accd734f21758c199bf)
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Some cli processes, including bringing up an i40e interface with dpdk,
consume more than the currently available stack space.
Type: fix
Fixes: VPP-1774
Signed-off-by: Aloys Augustin <aloaugus@cisco.com>
Change-Id: I86ceb9e6e07523d5e0f760b5922467f09a8d4006
(cherry picked from commit 735d2e202b6d68059049a233b0a870ec3713564d)
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Type: fix
Signed-off-by: Hiroki Shirokura <slank.dev@gmail.com>
Change-Id: I3ae7dc3858d0353764d629d6a9eff2bdab5f8768
(cherry picked from commit 67e4df144b8fd9ef45a188937441ce11260c8b67)
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The CLI code, when it accepts a socket connection, ran a timer
for each session that would ensure the CLI session was started
should the TELNET negotiation stage fail to complete.
It has since transpired that this is unsafe; the timer is capable
of firing in critical sections, during a spinlock, and since we
peform non-trivial things in the handler it can cause a deadlock.
This was reported recently in VPP-1711 but a search of history
suggests this may also be (one of) the causes in VPP-1413.
This change replaces that method with an event-driven process.
The process is created when the first socket connection is
accepted.
When new connections are created the process is sent an event
to register the new session in a list. That event process has
a loop that evaluates the list of oustanding sessions and if
a deadline expires, their session is started if it has not been
already, and then removed from the list.
If we have pending sessions then the loop waits on a timer or an
event; if there are no sessions it waits on events only.
Type: fix
Ticket: VPP-1711
Change-Id: I8c6093b7d0fc1bea0eb790032ed282a0ca169194
Signed-off-by: Chris Luke <chrisy@flirble.org>
Signed-off-by: Dave Barach <dave@barachs.net>
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Type:fix
Change-Id: Id7f4f6e2a2f844085f511a33aa1db3968f5d97bb
Signed-off-by: Florin Coras <fcoras@cisco.com>
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- 'set terminal history off' or '... limit 0' has an incorrect
terminal condition and tries to vec_delete one-too-many times
causing a crash.
- Changing >= to > fixes this.
- In any case, a single vec_delete is more efficient, so do that
instead.
Change-Id: Ia0db63b6c5c7891d75b302e793b4e4985dd86ebb
Signed-off-by: Chris Luke <chrisy@flirble.org>
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The vlib init function subsystem now supports a mix of procedural and
formally-specified ordering constraints. We should eliminate procedural
knowledge wherever possible.
The following schemes are *roughly* equivalent:
static clib_error_t *init_runs_first (vlib_main_t *vm)
{
clib_error_t *error;
... do some stuff...
if ((error = vlib_call_init_function (init_runs_next)))
return error;
...
}
VLIB_INIT_FUNCTION (init_runs_first);
and
static clib_error_t *init_runs_first (vlib_main_t *vm)
{
... do some stuff...
}
VLIB_INIT_FUNCTION (init_runs_first) =
{
.runs_before = VLIB_INITS("init_runs_next"),
};
The first form will [most likely] call "init_runs_next" on the
spot. The second form means that "init_runs_first" runs before
"init_runs_next," possibly much earlier in the sequence.
Please DO NOT construct sets of init functions where A before B
actually means A *right before* B. It's not necessary - simply combine
A and B - and it leads to hugely annoying debugging exercises when
trying to switch from ad-hoc procedural ordering constraints to formal
ordering constraints.
Change-Id: I5e4353503bf43b4acb11a45fb33c79a5ade8426c
Signed-off-by: Dave Barach <dave@barachs.net>
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Fix os_get_nthreads() so that it starts returning the correct answer
as early as possible.
Change-Id: Id5292262f2c3f521b07ffbe6a9f6748dcc4dcb7d
Signed-off-by: Dave Barach <dave@barachs.net>
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Otherwise, gcov data vanishes without a trace.
Add a __gcov_flush() call to the unix signal handler, under #ifdef
CLIB_GCOV. Add -DCLIB_GCOV to vpp_gcov_TAG_CFLAGS.
Change-Id: I2726e671b26dfbe7fae88f46a8207bb2b5106884
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I6d7589c967c5801a6a21a213723e2a895269e105
Signed-off-by: Benoît Ganne <bganne@cisco.com>
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Main thread: don't bother with the barrier sync hold-down timer if
none of the worker threads are busy.
Worker threads: avoid epoll_pwait (10ms timeout) when the
control-plane has been active in the last half-second.
Change-Id: I82008d09968c65e2a4af0ebb7887389992e60603
Signed-off-by: Dave Barach <dave@barachs.net>
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Change-Id: I7a3526a8fdf17afb8cc2225bdfbd57f661680992
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I320e7c2fdacb3056bc448c73fec08d9e2978ee5e
Signed-off-by: Florin Coras <fcoras@cisco.com>
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File pool may be reallocated on epoll events processing.
*f* pointer shows to already freed address and corrupting
memory chunk on clib_file_t property change.
Change-Id: I751bddce27325452862b939c1a3eec2ccd9b71bb
Signed-off-by: Artem Belov <artem.belov@xored.com>
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Change-Id: I2f7f3898b913c9b1a37b1c8c84a8df3799c49c5d
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
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Change-Id: I53ab8d17914e6563110354e4052109ac02bf8f3b
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
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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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Comes in handy when looking at core files from optimized images.
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I45c8400d15614d5a04a3dcfb9b7daccab47ab446
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Change-Id: I4e836244409c98739a13092ee252542a2c5fe259
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Example:
buffers {
default data-size 1536
}
Change-Id: I5b4436850ca18025c9fdcfc7ed648c2c2732d660
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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Change-Id: I0ba5175be077c40556f2a3ce629c5bbcd71e0a81
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: If88ccd965122b9318a39a8d71b53334cd1fd81e4
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Thread 1 "vpp_main" received signal SIGSEGV, Segmentation fault.
0x00007ffff670da53 in cj_dump_one_record (r=0x7ffff50f0fec)
at /home/sluong/vpp3/vpp/src/vlib/unix/cj.c:138
138 (long long unsigned int) r->data[1]);
(gdb) p *cjm
$1 = {tail = 58645908, records = 0x7fffb64646ec, num_records = 512,
enable = 1, vlib_main = 0x7ffff6953240 <vlib_global_main>}
(gdb) p /x cjm
$2 = 0x7ffff6953880
(gdb) p /x *cjm
$3 = {tail = 0x37edd94, records = 0x7fffb64646ec, num_records = 0x200,
enable = 0x1, vlib_main = 0x7ffff6953240}
(gdb)
cjm->tail is a 64 bit counter, not the total number of records. Dumping from
0 to cjm->tail can be a very large number of records which go beyond the
limit. I believe we meant to dump from 0 to index. index has been set by
this statement
index = (cjm->tail + 1) & (cjm->num_records - 1);
Change-Id: Ie1a8ba757598de9757accc1488577c15aa49726b
Signed-off-by: Steven <sluong@cisco.com>
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Change-Id: Ic4c46bc733afae8bf0d8146623ed15633928de30
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab
Signed-off-by: Dave Barach <dave@barachs.net>
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This is first part of addition of atomic macros with only macros for
__sync builtins.
- Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/)
Additionally
- clib_atomic_release macro added and used in the absence
of any memory barrier.
- clib_atomic_bool_cmp_and_swap added
Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b
Original-patch-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
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Under rare scenario, epoll may still post an event to VPP although the file
descriptor is already deleted via epoll_ctl (EPOLL_CTL_DEL) and the file
descriptor is close. VPP tries to access the free file index entry and crash.
The fix is to throw away the events which the file descriptor is already deleted.
Change-Id: Ieca3a1873aecb28630c3abc42c40341f27c2faa7
Signed-off-by: Steven <sluong@cisco.com>
(cherry picked from commit aec7297ba012e1fe4bbf85cdaec8e810aa476cea)
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- We deliberately ignore the return value.
Change-Id: If467911b019e7336cf9dc6d4c95c2cd53a5af33f
Signed-off-by: Chris Luke <chrisy@flirble.org>
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- A check for the length of the buffer should have used the provided
'len' variable, not 'vec_len' since the buffer pointer may be
within a vector, but not the start of one. 'vec_len' reports 0
in that case, causing premature exit from the options processing
loop and a wait for further input before it checks the next option.
- Also add TCP_NODELAY to CLI sockets to disable Nagle on TCP
connections for a possible improvement in interactive response.
Change-Id: Ie1f53c003ca7d66bed51f437d298183215bad38c
Signed-off-by: Chris Luke <chrisy@flirble.org>
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Configure w/ --enable-dlmalloc, see .../build-data/platforms/vpp.mk
src/vppinfra/dlmalloc.[ch] are slightly modified versions of the
well-known Doug Lea malloc. Main advantage: dlmalloc mspaces have no
inherent size limit.
Change-Id: I19b3f43f3c65bcfb82c1a265a97922d01912446e
Signed-off-by: Dave Barach <dave@barachs.net>
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When creating a new - as opposed to recycled - debug CLI process node,
perform a proper barrier sync and node runtime update. Otherwise, the
graph replicas diverge for some period of time. That's not immediately
fatal, but it's not a good idea, either.
When renaming a debug cli process node, fix all of the name-vector
replicas before freeing the [one-and-only] name vector.
This fixes the so-called stats segment node runtime scraper crash,
which tripped over a replicated dangling reference to the
recently-freed debug CLI node name.
Change-Id: Ieffabd9f003139e534b9d79b88370439907930e5
Signed-off-by: Dave Barach <dbarach@cisco.com>
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VPP crash happens with 'vppctl quit quit' command. The 2nd quit command
tries to access the file index which is already freed by the first quit.
This can be avoided to validate cli_file_index.
Change-Id: I880514c93523db2a727d7510c97950582cd6a6c8
Signed-off-by: Steve Shin <jonshin@cisco.com>
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crash stack backtrace will be directed to syslog
1. make use of glic backtrace in execinfo.h. the old clib_backtrace is removed
2. install SIGABRT in signal handler, but have to remove it when backtrace is
done. reason is to capture stack trace caused by SIGABRT. vPP ASSERT always
call os_exit then abort(). we definitely want to know the trace of this
situation. It is a little tricky to avoid SIGABRT infinite loop
3. always load symbols by calling clib_elf_main_init () in main(). Otherwise,
PC addresses instead of symbols will be displayed.
Change-Id: I150e15b94a4620b2ea4f08c73dc3e6ad1856de1e
Signed-off-by: Kingwel Xie <kingwel.xie@ericsson.com>
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Workaround for lack of driver interrupt support. Also quite handy for
home gateway, laptop/vagrant, other use-cases not requiring maximum
vectors/second for proper operation.
Change-Id: Ifc4b98112450664beef67b89ab8a6940a3bf24b5
Signed-off-by: Dave Barach <dave@barachs.net>
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- CLI history forward-search is bound to ^S which is common, but
that is also the tty's default control byte to pause output.
So we disable XON/XOFF in the tty so that we can use ^S.
Change-Id: I61717c77a11733d64eed7f8119677e7cd2e20029
Signed-off-by: Chris Luke <chrisy@flirble.org>
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- Terminals do not reverse-line-wrap when the cursor is at the left
edge and \b tries to make it go left.
- Instead, we have to track the cursor position if we need to emit \b's
and if we are at the left edge emit an ANSI sequence to relocate
the cursor. Previously we usually simply calculated the new cursor
position after a bunch of output had completed.
- Further trickiness is required since most xterm-like terminals also
defer moving the cursor to the next line when at the right edge[1], and
then if they receive a \b move the cursor back one character too many.
- This requires intricate reworking of everywhere that \b is emitted
by the CLI code during command line editing.
[1] Bash counters this issue by tracking the cursor position as output
is generated and forcing the cursor to the next line (by emitting
a space followed by \r) if it gets to this phantom cursor position);
here we effectively do that but only if the user tries to go left
when in this state.
Change-Id: I7c1d7c0e24c53111a5810cebb504ccfdac743086
Signed-off-by: Chris Luke <chrisy@flirble.org>
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- The last line in the pager buffer was sometimes missed when
using space/pg-dn; simple off-by-one error.
Change-Id: Id4e5f7cf0e5db4f719f87b9069d75427bc66d3f7
Signed-off-by: Chris Luke <chrisy@flirble.org>
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Object sizes must evenly divide alignment requests, or vice
versa. Otherwise, only the first object will be aligned as
requested.
Three choices: add CLIB_CACHE_LINE_ALIGN_MARK(align_me) at
the end of structures, manually pad to an even divisor or multiple of
the alignment request, or use plain vectors/pools.
static assert for enforcement.
Change-Id: I41aa6ff1a58267301d32aaf4b9cd24678ac1c147
Signed-off-by: Dave Barach <dbarach@cisco.com>
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Change-Id: I994649761fe2e66e12ae0e49a84fb1d0a966ddfb
Signed-off-by: Neale Ranns <nranns@cisco.com>
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Change-Id: I32f68e2ee8f5d32962acdefb0193583f71d342b3
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Change-Id: I59b4142daab439d60a1ebd48b2c1366df0160288
Signed-off-by: Damjan Marion <damarion@cisco.com>
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How to use:
plugins
{
plugin default {disable}
plugin dpdk_plugin.so {enable}
plugin acl_plugin.so {enable}
}
It also preserves the old behavior.
Change-Id: I9901c56d82ec4410e69c917992b78052aa6a99e0
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
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After the addition of "qos" cli, "quit" command is not the only match
for "q". Therefore, add a separate "q" cli to avoid ambiguity.
Change-Id: I84f6ddce14ef7d5fa7089537cb62adfecea0e501
Signed-off-by: Florin Coras <fcoras@cisco.com>
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Change-Id: I64f2b2007f30fc1c6bd2990ba0d7ccbcd43cdb38
Signed-off-by: Dave Barach <dave@barachs.net>
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We don't need per vlib_main physmem_main, so keep it separatelly instead
of trying to keep them in sync.
Change-Id: I0fbeecf4d9672d31af7a43c640a7d8f05dd6e46f
Signed-off-by: Damjan Marion <damarion@cisco.com>
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This patch teaches worer threads to sleep and to be waken up by
kernel if there is activity on file desctiptors assigned to that thread.
It also adds counters to epoll file descriptors and new
debug cli 'show unix file'.
Change-Id: Iaf67869f4aa88ff5b0a08982e1c08474013107c4
Signed-off-by: Damjan Marion <damarion@cisco.com>
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Add an SELinux profile such that VPP can run under SELinux on RPM based
platforms. The SELinux Policy is currently only implemented for RPM
packages, specifically, Fedora, CentOS and RHEL. Doxygen User
Documentation has been included (selinux_doc.md). Once some discussion
on file locations has completed (see vpp-devlist), updates to the Debug
CLI documentation will also need to be updated.
Additional changes:
Patch Set 2:
- Rework selinux_doc.md such that each line is only 80 characters
instead of each sentence on a line. Made additonal minor chnages
to the text.
- Update vHost Debug CLI documentation to reflex new socket location.
Cleaned up some text from when I originally wrote it, to better
reflex proper use.
- Update exec Debug CLI documentation to be more inline with suggested
helptext, added text regarding recommended script file location.
- For Debian builds, create the /var/log/vpp/ directory. I don't use
Debian very much, so please pay extra attention to
build-data/platforms.mk and build-root/deb/debian/.gitignore.
- Per discussion on VPP call, changed the default log location to
/var/log/vpp/vpp.log.
- Changed the socket location for vHost in AutoConfig to
/var/run/vpp/.
Patch Set 3:
- Update selinux_doc.md based on comments.
Change-Id: I400520dc33f1ca51012d09ef8fe5a7b7b96c631e
Signed-off-by: Billy McFall <bmcfall@redhat.com>
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