On reviece side svm queue only permits blocking and
non-blocking calls. This patch adds timed wait blocking
functionality which returns either on signal/event or
on given time out.
It also preserves the original behavior, so it will not
hurt client applications which are using svm queue.
Change-Id: Ic10632170330a80afb8bc781d4ccddfe4da2c69a
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
This is a fixup for the commits on
calc base address on AArch64 based on autodetected VA space size
As reported by: Brian Brooks <brian.brooks@arm.com>
Signed-off-by: Gabriel Ganne <gabriel.ganne@enea.com>
Change-Id: Id1bd7b7d7e5c188d8547c46134082bd4563b92db
- separate client/server code for both memory and socket apis
- separate memory api code from generic vlib api code
- move unix_shared_memory_fifo to svm and rename to svm_fifo_t
- overall declutter
Change-Id: I90cdd98ff74d0787d58825b914b0f1eafcfa4dc2
Signed-off-by: Florin Coras <fcoras@cisco.com>
Mapping shared virtual memory at 0x30000000, which appears to be derived
from x86-32, turns out to be too close to the heap on arm64 systems. The
symptoms of memory corruption were random and included crashes in the
Python runtime and what appeared to be corruption of malloc's internal
mutex. Thanks to Gabriel Ganne for pointing out that disabling ASLR seemed
to mitigate the situation.
This patch maps SVM regions at an offset from the arm64 kernel constant
TASK_UNMAPPED_BASE and also assumes a 48-bit VA (for Ubuntu).
Change-Id: I642e5fe83344ab9b5c66c93e0cf1575c17251f3b
Signed-off-by: Brian Brooks <brian.brooks@arm.com>
- always use 'va_args' as pointer in all format_* functions
- u32 for all 'indent' params as it's declaration was inconsistent
Change-Id: Ic5799309a6b104c9b50fec309cba789c8da99e79
Signed-off-by: Christophe Fontaine <christophe.fontaine@enea.com>
- Teach vpp_api_test to send/receive API messages over sockets
- Add memfd-based shared memory
- Add api messages to create memfd-based shared memory segments
- vpp_api_test supports both socket and shared memory segment connections
- vpp_api_test pivot from socket to shared memory API messaging
- add socket client support to libvlibclient.so
- dead client reaper sends ping messages, container-friendly
- dead client reaper falls back to kill (<pid>, 0) live checking
if e.g. a python app goes silent for tens of seconds
- handle ping messages in python client support code
- teach show api ring about pairwise shared-memory segments
- fix ip probing of already resolved destinations (VPP-998)
We'll need this work to implement proper host-stack client isolation
Change-Id: Ic23b65f75c854d0393d9a2e9d6b122a9551be769
Signed-off-by: Dave Barach <dave@barachs.net>
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Signed-off-by: Florin Coras <fcoras@cisco.com>
- add preallocated segment flag
- don't remove pre-allocated segments except if application detaches
- when preallocating fifos in multiple segments, completely fill
a segment before moving to the next
- detach server application from segment-managers when deleting app
- batch syn/syn-ack/fin (re)transmissions
- loosen up close-wait and time-wait times
Change-Id: I412f53ce601cc83b3acc26aeffd7fa2d52d73b03
Signed-off-by: Florin Coras <fcoras@cisco.com>
Simply call pool_init_fixed(...) before using the pool. Note that
fixed, preallocated pools live in individually-mmap'ed address
segments, except for the free element bitmap. A large fixed pool can
exceed 4gb.
Fix tcp buffer allocator leak, remove broken assert
Change-Id: I4421082e12a77c41c6e20f7747f3150dcd01fc26
Signed-off-by: Dave Barach <dave@barachs.net>
- set session state as closed on session manager delete
- enable retransmit as opposed to persist timer after persist timer completes
- properly discard buffer chain bytes when new data overlaps ooo
segments
- don't use rxt bytes in snd space estimate used on tx path
Change-Id: Id9cab686e532e5fe70c775d5440260e8eb890a9f
Signed-off-by: Florin Coras <fcoras@cisco.com>
test can be run with:
make test TEST=test_jvpp
memory_shared.c:
declaring and assigning variable in if statement
makes it usage outside statement impossible. Looks like memory
space assigned to variable declared in statement is freed when
statement ends
svm.c:
- fixed case when root path can have a "/" at beggining
- added option for test to operate over shared memory space
with /vpe-api name and not create new one with name consisting of
root path and region name which would require root permisions
Change-Id: Iff1170dc6a5c1be134c152f2757c7ab9b919a8ed
Signed-off-by: Matej Perina <mperina@cisco.com>
API clients would fail with an ASSERT (and core dump) whenever
the API shared memory segment could not be opened.
This returns an error value to the client's connect instead.
Change-Id: Id122a3a090b24b139c382ae09f341bde61fd2540
Signed-off-by: Ole Troan <ot@cisco.com>
svm.c - set default map region root path only if root path is not
already present
memory_shared.c - added option for tests to send memory region name
and root path in one variable, if so name and root path are
separated here and set to map region structure so find function
can find it properly
jvpp-registry.c - added parameters shmPrefix to be able pass +
removed sudo restriction
specific shared memory prefix that is used while starting
python tests(see framework.py)
JVppRegistyImpl - added option to specify shmPrefix
VppJNIConnection - added option to specify shmPrefix
Change-Id: I3f89f867fb9b20eef00fbd497cb0e41b25d6eab7
Signed-off-by: Jan Srnicek <jsrnicek@cisco.com>
Signed-off-by: Matej Perina <mperina@cisco.com>
- Round up requested fifo size to the next power of two
- Maintain per-segment power-of-two freelists
- Allocate fifos in chunks, to amortize alignment overhead
- Detach builtin test client application after each run
so we can use different fifo sizes each time
- Be more suspicious of session / application indices
Useful prep work for dynamically resizing fifos. As far as the svm
fifo code is concerned, it's OK to set fifo->nitems anywhere in the
interval: [0, 1<<(fifo->freelist_index) + FIFO_SEGMENT_MIN_FIFO_SIZE]
It's unlikely that setting nitems below the path MTU will work out
very well...
Change-Id: Idad73a027dfb7412056cb02988b77e300fa7e8a7
Signed-off-by: Dave Barach <dave@barachs.net>
- Clean up internal API client registration
- Add proxy server
- Add a reference count to the svm fifo
Change-Id: I5ace1c85497062ed412d26ae76a9e6741af1e984
Signed-off-by: Dave Barach <dave@barachs.net>
Signed-off-by: Florin Coras <fcoras@cisco.com>
- Cleanup half-open connections and timers on the right thread
- Ensure half-open connection and transport endpoint pools are thread safe
- Enqueue TX events to the correct vpp thread in the builtin client
- Use transport proto in transport connections instead of session type
Change-Id: Id13239a206afbff6f34a38afa510fe014e4b2049
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dave@barachs.net>
- api-segment prefix not used when unlinking shm files
- unlink root region on exit if no clients referenced
- stale reference to freed segment name
- don't add fake client to /db unless CLIB_DEBUG > 2
- turn off the gmond plugin
- clean up unused vars in vpp/api
Change-Id: I66451fcfd6ee64a12466c2d6c209050e3cdb74b7
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Signed-off-by: Dave Barach <dave@barachs.net>
This is preparation for new C API. Moving common stuff to separate
headers reduces dependency issues.
Change-Id: Ie7adb23398de72448e5eba6c1c1da4e1bc678725
Signed-off-by: Klement Sekera <ksekera@cisco.com>
- refactor existing congestion control code (RFC 6582/5681). Handling of ack
feedback now consists of: ack parsing, cc event detection, event handling,
congestion control update
- extend sack scoreboard to support sack based retransmissions
- basic implementation of Eifel detection algorithm (RFC 3522) for
detecting spurious retransmissions
- actually initialize the per-thread frame freelist hash tables
- increase worker stack size to 2mb
- fix session queue node out-of-buffer handling
- ensure that the local buffer cache vec_len matches reality
- avoid 2x spurious event requeues when short of buffers
- count out-of-buffer events
- make the builtin server thread-safe
- fix bihash template threading issue: need to paint -1 across uninitialized
working_copy_length vector elements (via rebase from master)
Change-Id: I646cb9f1add9a67d08f4a87badbcb117980ebfc4
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dbarach@cisco.com>
- add option to preallocate fifos in a segment
- track active fifos with doubly linked list instead of vector
- update udp redirect test code to read fifo pointers from API call
instead of digging them up from fifo segment header
- input-node based active-open session generator
Change-Id: I804b81e99d95f8690d17e12660c6645995e28a9a
Signed-off-by: Dave Barach <dave@barachs.net>
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dbarach@cisco.com>
Among others:
- Moved app event queue to shared memory segment
- Use private memory segment for builtin apps
- Remove pid from svm fifo
- Protect session fifo (de)allocation
- Use fifo event for session disconnects
- Have session queue node poll in all wk threads
Change-Id: I89dbf7fdfebef12f5ef2b34ba3ef3c2c07f49ff2
Signed-off-by: Florin Coras <fcoras@cisco.com>
Major refactoring of the session layer api
- Add attatch api for application binding to the the session layer
- Simplify listen/connect calls
- Update application CLI
- Add transport endpoint to accept callback
- Associate segment manager to application and allow for multiple
binds/connects per app
Additional:
- svm fifo cleanup
- add fifo free, format fns
- add fifo offset enqueue unit test
Change-Id: Id93a65047de61afc2bf3d58c9b544339c02065af
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dave@barachs.net>
- added persist timer
- update rcv_las whenever sending an ack
- moved fifo size to its own cache line
- improved session and builtin client debugging
Change-Id: Ia649cf942cf0c061a713e8b67f0eb6974a6cd55b
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dave@barachs.net>
- Added svm fifo flag for tracking fifo dequeue events (replaces event
length). Updated all code to switch to the new scheme.
- More session debugging
- Fix peek index wrap
- Add a trivial socket test client
- Fast retransmit/cc fixes
- tx and rx SACK fixes and unit testing
- SRTT computation fix
- remove dupack/ack burst filters
- improve ack rx
- improved segment rx
- builtin client test code
Change-Id: Ic4eb2d5ca446eb2260ccd3ccbcdaa73c64e7f4e1
Signed-off-by: Florin Coras <fcoras@cisco.com>
Signed-off-by: Dave Barach <dbarach@cisco.com>
