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2017-07-06unix: mkdir VPP_RUN_DIR before opening a socket in itChris Luke3-0/+30
Change https://gerrit.fd.io/r/#/c/7230/ added a Unix domain CLI socket in the default startup.conf; however unless you had previously run VPP with the DPDK plugin enabled the directory that it is created in. /run/vpp, would not exist and startup would fail. This directory is typically hosted in a tmpfs ramdisk and is thus ephemeral. This patch adds a function that attempts to mkdir VPP_RUN_DIR and uses it in both the DPDK plugin and the CLI code if the CLI socket is to be created in that directory. Change-Id: Ibbf925819099dce2b5eb0fa238b9edca1036d6fd Signed-off-by: Chris Luke <chrisy@flirble.org>
2017-07-05Buffer name inconsistently used a cstring/vec (VPP-901)Chris Luke1-3/+3
Spotted in the output of CLI command "show buffers", the name field sometimes had trailing garbage, the hall sign of a string not being terminated. In this case it was being inconsistently used as a cstring or a vec. - CLI printf needs %v to print the vec srring - vlib_buffer_create_free_list_helper tried to use clib_mem_is_heap_object() to detect a vec object, wheras it should use clib_mem_is_vec() Change-Id: Ib8b242a0c5a18924b8af7e8e1432784eebcf572c Signed-off-by: Chris Luke <chrisy@flirble.org>
2017-06-30VPP debug image with worker threads hit assert on adding IP route with ↵Neale Ranns2-0/+23
traffic (VPP-892) When stacking DPOs the VLIB graph is also updated to add the edge between the nodes, if this edge does not yet exist. This addition should be done with the workers stopped. Change-Id: I327e4d7d26f0b23eb280f17e4619ff2093ff7940 Signed-off-by: Neale Ranns <nranns@cisco.com> (cherry picked from commit c02bd03ddf5eec9e9c79811360685f13e4ba8ee1)
2017-06-28switch vlib process model to tw_timer_template timer implDave Barach4-77/+89
Change-Id: I36bb47faea55a6fea7af7ee58d87d8f6dd28f93d Signed-off-by: Dave Barach <dave@barachs.net>
2017-06-21Add option to create clib_socket with group write permissionsDamjan Marion1-1/+4
Also allow group write as default for CLI socket connections. Change-Id: I6af1f277f70581358cd9241bf0f5cb0752fe250f Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-06-21Add knob to specify effective group id (gid) for VPP processDamjan Marion1-0/+7
Change-Id: Icf9bd4abda058fb380f1a25d5fe3917ffb38b1c4 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-06-09Implement sack based tcp loss recovery (RFC 6675)Florin Coras3-2/+3
- 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>
2017-06-07VPP-873: fix vector expansion bug in dispatch_pending_nodeDave Barach1-13/+27
The main interior graph-node dispatch loop had a longstanding dangling vector element reference: for (i = 0; i < _vec_len (nm->pending_frames); i++) cpu_time_now = dispatch_pending_node (vm, nm->pending_frames + i, cpu_time_now); Passing a pointer to a vector element (nm->pending_frames + i) has considerable comedic potential if there's any chance that the vector could expand. dispatch_pending_node() calls dispatch_node(), and indirectly any interior graph node dispatch function. If that node happens to expand nm->pending_frames by filling in a new frame, nm->pending_frames can expand. After calling the node dispatch function, dispatch_node() does the following: nf = vec_elt_at_index (nm->next_frames, p->next_frame_index); If nm->pending_frames expands during dispatch function execution, p is a dangling reference to freed memory. By luck, the TCP stack managed to allocate a fresh frame which included "old-p," which caused p->next_frame_index to be filled with the new-frame poison pattern 0xfefefefe. This has been broken from day 1, summer 2007, first use of the third-generation vector processing library. Change-Id: Ideb6363bb060c4e8bf9b901882c318bd83853121 Signed-off-by: Dave Barach <dave@barachs.net>
2017-06-06vlib: add screen-256color CLI terminal typeDamjan Marion1-0/+1
Change-Id: Ia78e69e5e8ed18020314aef321b94ac37037799b Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-06-05vlib: add unix_file_del_by_index functionDamjan Marion1-0/+8
Change-Id: I9eca5f9d1c1ae62d5ba5fb36f2f97434dbaf334e Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-05-24vlib: use driver_override in sysfs for binding pci devs to vfio/uio driversDamjan Marion1-12/+30
Change-Id: I262e455792fd95d286ee3ebc0049e2352ae5899f Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-05-24Fix tab-completion coverity issueYoann Desmouceaux1-1/+2
Change-Id: I051d015e7eee621dbef273b2c57449ea4c44b768 Signed-off-by: Yoann Desmouceaux <ydesmouc@cisco.com>
2017-05-23Add TAB-based auto-completion to the CLIYoann Desmouceaux3-0/+259
Hitting tab: - in the middle of a uniquely defined subcommand will expand the subcommand - in the middle of a non-uniquely defined (or empty) subcommand will display all possible subcommands, and possibly expand to the lowest common prefix Change-Id: Ib858eefdb0353cd2c3aad472799d15cd537455a0 Signed-off-by: Yoann Desmouceaux <ydesmouc@cisco.com>
2017-05-22vhost: migrate to use device infra for worker thread assignment, rx-mode.Steven1-10/+1
and add adaptive mode support to receive queue - Migrate vhost to use device infra which does the interface/queue to worker thread assignment. - Retire vhost thread CLI and corresponding code which assigns interface/queue to worker thread. set interface placement should be used instead to customize the interface/queue to worker thread assignment. - Retire vhost interrupt/polling option when creating vhost-user interface. Instead, set interface rx-mode should be used. - Add code in vnet_device_input_unassign_thread to change the node state to interrupt if the last polling interface has left the worker thread for the device of the corresponding interface/queue. - Add adaptive mode support. The node state is set to interrupt initially. When the scheduler detects a burst of traffic, it switches the input node to polling. Then we inform the device that we don't need interrupt notification. When the traffic subsides, the scheduler switches the input node back to interrupt. Then we immediately tell the driver that we want interrupt notification again. - Remove some duplicate code in vlib/main.c Change-Id: Id19bb1b9e50e6521c6464f470f5825c26924d3a8 Signed-off-by: Steven <sluong@cisco.com>
2017-05-16VPP-845: add configurable elog post-mortem dumpDave Barach3-4/+28
Off by default. Enable via cmdline "... vlib { elog-post-mortem-dump } ..." Change-Id: I2056b9de9b37475f2bfeeb5404da838f1b42645a Signed-off-by: Dave Barach <dave@barachs.net>
2017-05-10completelly deprecate os_get_cpu_number, replace new occurencesDamjan Marion4-14/+5
Change-Id: I82c663bc0866c6c68ba354104b0bb059387f4b9d Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-05-09Fix remaining 32-bit compile issuesDamjan Marion1-1/+1
Change-Id: I9664214652229b663c3e3ba7406b4ede96bfb123 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-05-08vlib: do not unbind devices already bound to vfio-pciDamjan Marion1-0/+5
Change-Id: I739bed5b9d9504d18ee88206e29ebc4ba1b47d28 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-05-03Fix vnet unit testsFilip Tehlar1-0/+12
Change-Id: Ibe55e4399c6b78d83268d7c49ed498cab7bfdb43 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
2017-04-26Exit if plugin load attempt failDamjan Marion1-6/+2
This happens mainly if plugin contains unresolved symbol. Such situation typically leads on crash a bit later so it is better to exit immediatelly and display meaningful error message. Change-Id: I4abd9a9089a4863400bf609e8d3fd7cebab92913 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-25Fix structure alignment with 32-bit pointersDamjan Marion1-0/+4
Change-Id: I740de6c0f12dab452b4349e3bf89ff976a6268c0 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-21vlib: add cli command to dump all CLI commandsDamjan Marion1-0/+49
To be used for bash completion Change-Id: I8f4702f24c2b7e223945e00a1b3560dec6ef39fd Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-11Fix typo in minimal epoll polling timePierre Pfister1-1/+1
epoll was supposed to not sleep when timeout is less than 1ms, but a typo made it not sleep any time the requested timeout is lower than 1000 seconds (in practice, never...). This patch replaces "1e3" with "1e-3", which represents 1ms. Change-Id: I731851b27a6bf6ab8e41586e017e94b962b09bf3 Signed-off-by: Pierre Pfister <ppfister@cisco.com> (cherry picked from commit ec06222ae189fe8d84b63410130fff04bf446573)
2017-04-10Common device-input interrupt infraDamjan Marion1-0/+14
Change-Id: I23b588eb56a3f5690158449a1f9bc8053cd3d251 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-06Use thread local storage for thread indexDamjan Marion16-116/+94
This patch deprecates stack-based thread identification, Also removes requirement that thread stacks are adjacent. Finally, possibly annoying for some folks, it renames all occurences of cpu_index and cpu_number with thread index. Using word "cpu" is misleading here as thread can be migrated ti different CPU, and also it is not related to linux cpu index. Change-Id: I68cdaf661e701d2336fc953dcb9978d10a70f7c1 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-04vlib: make vlib_node_interrupt_pending(...) thread safeDamjan Marion3-5/+22
Change-Id: I24577bd32ae23fbe8515cc8d960eab5448ce3b5c Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-01Clean up event log merge codeDave Barach1-1/+1
Fix a decade-old ridiculous qsort function bug. Managed to subtract floating-point numbers as if they were integers, leading to manufactured time-paradoxes. That completely confuses g2, leading to the summary disappearance of entire tracks' worth of data at high zoom levels. Add a manual alignment tweak parameter to elog_merge, users can dial-out time paradoxes caused by NTP-grade clock synchronization. The event-logger has a precision of O(100ns), whereas NTP synchronization is O(1ms). Change-Id: I69dedabaa314f69f9df74ec9ee66e21e6c87f703 Signed-off-by: Dave Barach <dave@barachs.net>
2017-03-31vlib: extend foreach_vlib_main macro to assert if workers are not parkedDamjan Marion2-12/+27
Change-Id: I6ff7b65a400734a47bc0a7d03faf86ef1cf4f8c8 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-28vlib: inline dispatch_node(...) (again)Damjan Marion2-11/+2
Worker main loop is now shared code with main thread main loop so no need to export functions anymore. Change-Id: I99ee2eee981c1b88ca31d20eabeb6c21d030a34d Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-22vlib: add description field in plugin registrationDamjan Marion2-5/+10
Change-Id: I88b322a5d602f3d6d3310e971479180a89430e0e Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-22vhost: support interrupt modeSteven1-5/+8
vhost currently supports only polling mode. This patch is to add interrupt mode. When the interface is configured for interrupt mode, our input node does not get called unless there is a packet in the vring. If a particular CPU has one interface configured for polling mode and another in interrupt, the input node is set to polling for that CPU. This diffs also includes two crashes in vlib's dispatch_node. One is included in https://gerrit.fd.io/r/#/c/5516. The other crash is in the ASSERT. The ASSERT can become true when the caller of dispatch_node is in a loop. The first call converted the node to polling. The second call thereafter will hit the ASSERT. Change-Id: If17b6d48b20d7d8605c6a161459828637173cd32 Signed-off-by: Steven <sluong@cisco.com>
2017-03-20vnet: add device-input threadplacement infraDamjan Marion1-10/+4
This change adds two new debug CLI command: - "show interface placmenet" to display which thread (main or worker) is responsible for processing interface rx queue vpp# show interface placement Thread 0 (vpp_main): node af-packet-input: host-vpp1 queue 0 Thread 1 (vpp_wk_0): node af-packet-input: host-virbr0 queue 0 Thread 2 (vpp_wk_1): node af-packet-input: host-vpp2 queue 0 host-lxcbr0 queue 0 - "set interface placmenet" to assign thread (main or worker) which process specific interface rx queue vpp# set interface placement host-vpp1 queue 0 main Change-Id: Id4dd00cf2b05e10fae2125ac7cb4411b446c5e9c Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-1764 bit per-thread countersNeale Ranns2-172/+101
after: TenGigabitEthernet5/0/1-output active 107522 17375708 0 7.22e0 161.60 TenGigabitEthernet5/0/1-tx active 107522 17375708 0 6.93e1 161.60 ip4-input-no-checksum active 107522 17375708 0 2.52e1 161.60 ip4-lookup active 107522 17375708 0 3.10e1 161.60 ip4-rewrite active 107522 17375708 0 2.52e1 161.60 before TenGigabitEthernet5/0/1-output active 433575 110995200 0 6.95e0 256.00 TenGigabitEthernet5/0/1-tx active 433575 110995200 0 7.14e1 256.00 ip4-input-no-checksum active 433575 110995200 0 2.66e1 256.00 ip4-lookup active 433575 110995200 0 3.29e1 256.00 ip4-rewrite active 433575 110995200 0 2.59e1 256.00 Change-Id: I46405bd22189f48a39f06e3443bb7e13f410b539 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-03-17vlib: fix potential crash in dispatch_node ELOG_DATA callSteven1-2/+11
dispatch_node may be invoked from vlib main or worker threads. The call to ELOG_DATA in dispatch_node passes the parameter &vm->elog_main. It works fine when dispatch_node is invoked from the main thread. It does bad thing when it is invoked from the worker thread. While we are at it, make two additional enhancements to the same area. 1. Use ELOG_TRACK_DATA instead of ELOG_DATA to enhance g2 viewer presentation. 2. Since ELOG_DATA is in the data path, it could get very chatty. Make the call to ELOG_TRACK_DATA conditional compile. Change-Id: I80ca0eea10bc1e5d0d5549f9844dd9a34dbb65a2 Signed-off-by: Steven <sluong@cisco.com>
2017-03-16vlib: additional runtime_data checksDamjan Marion1-8/+14
Change-Id: I9b6ed9741fae89bdefa6f601398eb63a21155069 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-16vlib: make runtime_data thread-localDamjan Marion5-45/+103
Change-Id: I4aa3e7e42fb81211de1aed07dc7befee87a1e18b Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-15No vector allocation during buffer copyNeale Ranns1-4/+1
Change-Id: I7e8556af833ca0e00fadc96dcd2077ff1104541b Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-03-14vlib: poll pre_input nodes only on main threadDamjan Marion1-6/+7
Change-Id: I61464fd1610a9754693f31edd72f9fa1b6926511 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-10Retire vpp_liteDamjan Marion1-0/+6
vpp_lite platform is not needed anymore as same efect can be achieved with following startup.conf config: plugins { plugin dpdk_plugin.so { disable } } Change-Id: I690ea8ceb1c6e1fe32e01e7da54e9958019a93bf Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-10vlib: deduplicatee code in main and worker main loopDamjan Marion4-142/+116
Change-Id: Id18d59c9442602633a6310b2001a95bce8b6b232 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-09vlib_mains == 0 special cases be goneDave Barach6-55/+65
Clean up spurious binary API client link dependency on libvlib.so, which managed to hide behind vlib_mains == 0 checks reached by VLIB_xxx_FUNCTION macros. Change-Id: I5df1f8ab07dca1944250e643ccf06e60a8462325 Signed-off-by: Dave Barach <dave@barachs.net>
2017-03-08vlib: add process restart cliDamjan Marion1-0/+20
Change-Id: I8b81e53ebea573b4edb17aca7e1c284f3984e399 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-06Add support for unix { coredump-size <size> }.Klement Sekera1-0/+22
Use setrlimit to set the core size limit if the argument is passed to vpp. Change-Id: Ie76c082b2af81337310fcb1925af915a42067f15 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-03-02Clean up binary api message handler registration issuesDave Barach1-7/+24
Removed a fair number of "BUG" message handlers, due to conflicts with actual message handlers in api_format.c. Vpp itself had no business receiving certain messages, up to the point where we started building in relevant code from vpp_api_test. Eliminated all but one duplicate registration complaint. That one needs attention from the vxlan team since the duplicated handlers have diverged. Change-Id: Iafce5429d2f906270643b4ea5f0130e20beb4d1d Signed-off-by: Dave Barach <dave@barachs.net>
2017-03-01VPP-598: tcp stack initial commitDave Barach2-1/+69
Change-Id: I49e5ce0aae6e4ff634024387ceaf7dbc432a0351 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Florin Coras <fcoras@cisco.com>
2017-03-01Fix buffer template copyDave Barach2-5/+30
Change-Id: If451c9cb68719fc816999b0330b9be3a0169176a Signed-off-by: Dave Barach <dave@barachs.net>
2017-02-28vlib: add buffer cloning supportDamjan Marion3-200/+171
Change-Id: I50070611af15b2b4cc29664a8bee4f821ac3c835 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-02-27vlib: add VLIB_BUFFER_EXT_HDR_VALID flagDamjan Marion1-0/+2
Change-Id: If56c66dd12eded1cc997087de5fd1b975766c4e2 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-02-26Load plugins in alphabetical orderDave Barach1-9/+55
API traces contain absolute message numbers. Loading plugins in directory (vs. alphabetical) order makes trace replay fragile. Change-Id: I46b3a3b6a9843a383d42269fca0cf5a789486eaf Signed-off-by: Dave Barach <dave@barachs.net>
2017-02-24VPP-650: handle buffer failure in vlib_buffer_copy(...)Dave Barach1-1/+10
Change-Id: I6aac48d780fcd935818221044eae50067f225175 Signed-off-by: Dave Barach <dave@barachs.net>