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2018-11-05Enable atomic swap and store macro with acquire and release orderingSirshak Das2-5/+9
Add atomic swap and store macro with acquire and release ordering respectively. Variable in question is interupt_pending variable which is used as guard variable by input nodes to process the device queue. Atomic Swap is used with Acquire ordering as writes or reads following this in program order should not be reordered before the swap. Atomic Store is used with Release ordering, as post store the node is added to pending list. Change-Id: I1be49e91a15c58d0bf21ff5ba1bd37d5d7d12f7a 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>
2018-10-27virtio: remove the extra return callMohsin Kazmi1-2/+0
Change-Id: I6e43953a6ad1bd672e69d8377d18bd9614b469d8 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-10-23c11 safe string handling supportDave Barach13-29/+29
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-10-20pipes: fix the l2.l2_len and the l[23]_hdr_offset setting behavior of ↵Andrew Yourtchenko1-29/+30
pipe-rx node to match that of ethernet-input node Since pipe-rx is a sibling node of ethernet-input, it ought to perform similarly: set l2/l3 header offsets, and l2.l2_len value if the interface is in the l2 mode. The use cases of pipes do not assume the tagged traffic, so assume the simple ethernet header. Change-Id: I7c9b5f4f2b1402cfbd10513f76cdd59b2db7a7a6 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
2018-10-19vppinfra: add atomic macros for __sync builtinsSirshak Das1-2/+2
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>
2018-10-02vhost-user: add support for vlib_log APIJerome Tollet4-177/+129
Change-Id: I0af68f6b41d0024aa64b93a8b18e2d179bf939b0 Signed-off-by: Jerome Tollet <jtollet@cisco.com> Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-10-02vhost-user: Interface state updatesJuraj Sloboda4-16/+29
Fix inconsistencies between admin and link interface states Admin down should imply link down: link_up = admin_up && link_ready Change-Id: I4d668d82d035b5d2ae508727f34f1722a0c3e677 Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
2018-10-02vhost_user: Fix setting MTU using uninitialized variableJuraj Sloboda1-2/+1
Change-Id: I0caa5fd584e3785f237d08f3d3be23e9bfee7605 Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
2018-09-20vhost: show vhost may display garbage after the interface nameSteven1-2/+3
DBGvpp# show vhost-user Virtio vhost-user interfaces Global: coalesce frames 32 time 1e-3 number of rx virtqueues in interrupt mode: 0 Interface: VirtualEthernet0/0/0�?x�D (ifindex 3) The fix is to use format_vnet_hw_if_index_name rather than hi->name. The former format the name with %v rather than %s Change-Id: If4d275e1eb249cf87b2d6b796b42f24769f9e3e3 Signed-off-by: Steven <sluong@cisco.com>
2018-09-20vhost-user: Add disable feature support in apiMohsin Kazmi2-2/+16
Two flags to disable mergable rx buffers and indirect descriptors are added to api. Change-Id: Iba0ee9c48d19dfc3d3420a3fdaf44a1a1d325e99 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-09-12vhost: Fix VPP crash when reloading VM with mixed-type ports [VPP-1406]Yichen Wang2-1/+15
When VM is having mixed type of vhost-user and SRIOV ports, QEMU (RedHat v2.10) will not send disconnect signal to VPP, and just gives the new memory region directly. VPP is not able to handle new memory region mapping without disconnect signal first, which will result in a SEGV. The fix will handle the VM reboot scenario without explict disconnect signal from QEMU. The fix is to invalidate the avail, desc, and used pointers in the txvq when the new memory regions are received. This is because these pointers are not valid anymore with the new memory regions. In the input node, check to make sure the avail pointer is valid and punt if not. Change-Id: Ieb8b427b202f4442a58907dab1661d63a03650de Signed-off-by: Yichen Wang <yicwang@cisco.com>
2018-09-08L2 BVI/FIB: Update L2 FIB table when BVI's MAC changesNeale Ranns1-1/+1
also some moving of l2 headers to reduce dependencies Change-Id: I7a700a411a91451ef13fd65f9c90de2432b793bb Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-08-17Fix a bug in function pipe_rxLijian Zhang1-1/+1
GCC 7 found this issue with a compiling warning, and this bug has been confirmed by module owner. Change-Id: If29e857b3a87f91f08674aee6993b075fcff87e7 Signed-off-by: Lijian Zhang <Lijian.Zhang@arm.com>
2018-08-13Multiarch handling in different constructor macrosDamjan Marion2-5/+0
This significantly reduces need for ... in multiarch code. Simply constructor macros will jost create static unused entry if CLIB_MARCH_VARIANT is defined and that will be optimized out by compiler. Change-Id: I17d1c4ac0c903adcfadaa4a07de1b854c7ab14ac Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-08-11Multiversioning: Device (tx) function constructorMohsin Kazmi1-18/+3
Change-Id: I39f87ca161c891fb22462a23188982fef7c3243f Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-07-17VOM: support for pipesNeale Ranns2-10/+10
Change-Id: I5c381dfe2f926f94a34ee8ed8f1b9ec6038d5fe2 Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2018-07-11avoid using thread local storage for thread indexDamjan Marion5-6/+6
It is cheaper to get thread index from vlib_main_t if available... Change-Id: I4582e160d06d9d7fccdc54271912f0635da79b50 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-07-09new pipe code does not use stdintsNeale Ranns1-2/+2
Change-Id: Idee565af852c7bb434b886fbf31c6e76315686c4 Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-07-08vhost: Add multi-versioning supportMohsin Kazmi6-1534/+1667
It also refactors the vhost code which was in one big file vhost-user.c. Receive side code is in vhost_user_input.c and Transmit side code is in vhost_user_output.c Change-Id: I1b539b5008685889723e228265786a2a3e9f3a78 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-07-07PipesNeale Ranns4-0/+1141
A pipe resembles a unix pipe. Each end of the pipe is a full VPP interface. pipes can be used for e.g. packet recirculation, inter-BD, etc. Change-Id: I185bb9fb43dd233ff45da63ac1b85ae2e1ceca16 Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2018-06-27gcc8 and Wstringop-truncationMarco Varlese1-2/+2
gcc8 introduced a new warning (Wstringop-truncation) which in our case is being treated as error. Disabling the warning globally might introduce bugs related to string truncation which are not desired by the developer (e.g. bug). Instead, this patch disables the warning only for those occurences which have been verified to be non-bugs but the desired behaviour as per developer will. Change-Id: I0f04ff6b4fad44061e80a65af633fd7e0148a0c5 Signed-off-by: Marco Varlese <marco.varlese@suse.com>
2018-06-22Update tapv2 documentationIan Wells1-1/+1
The documentation in the API file says that 0xffff == 'no interface ID specified' but the code tests against ~(u32)0. Change-Id: I5cd83d876c3ad4f53a5b01463299d4fcb806ea98 Signed-off-by: Ian Wells <iawells@cisco.com>
2018-06-11MTU: Software interface / Per-protocol MTU supportOle Troan1-2/+1
This patch separates setting of hardware interfaec and software interface MTU. Software MTU is L2 payload MTU (i.e. not including L2 header). Per-protocol MTU for IPv4, IPv6 and MPLS can also be set. Currently only IP4, IP6 are enabled in adjacency / rewrite code. Documentation in src/vnet/MTU.md Change-Id: Iee2fd6f0bbc8210748dd8e073ab9fab87d323690 Signed-off-by: Ole Troan <ot@cisco.com>
2018-06-05VPP-1305: Add support for tagsJerome Tollet2-2/+18
Change-Id: I9e759037295fe675abe426e565a562b1ec1e7d33 Signed-off-by: Jerome Tollet <jtollet@cisco.com>
2018-05-29af_packet: Add support for dump interfacesMohsin Kazmi4-1/+98
Change-Id: I8d8ecc80edb7665125ba625a3ce7b30d2dea88f0 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-05-28af-packet: Add support for loggingMohsin Kazmi3-38/+52
Change-Id: I4cc6a20b69cce2aa52768a27c5d455eb098224c8 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-05-28itf: Fix admin up down for AF_PACKET and vhost-userMohsin Kazmi2-10/+45
Change-Id: I84327197d59c72d0d046dd2cb4071bf74af6fc28 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-05-18tap: remove the local vlib_log_info definitionMohsin Kazmi1-9/+3
Change-Id: Idff55a19d27fed0d57e222f38d2e16c5367911cb Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-05-10vppinfra: use count_trailing_zeros in sparse_vec_indexDamjan Marion1-6/+6
It is much cheaper to use ctzll than to do shift,subtract and mask in likely case when we are looking for 1st set bit in the uword. Change-Id: I31954081571978878c7098bafad0c85a91755fa2 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-04-27TAP memory leaks:Neale Ranns2-26/+18
1 - use bit-map to re-use ID values and thus VLIB nodes 2 - free vrings 3 - free hw_address on HW interface delete (a HW * struct is memset on pool_get) 4 - free temporary node names during TX node setup Change-Id: Id114c8bb9c844fd4ceb02fbbeb4b511ecfeb61ce Signed-off-by: Neale Ranns <nranns@cisco.com>
2018-04-17Add logging supportDamjan Marion2-0/+12
Change-Id: Ieac9cf50156dbbb4962411e900d59256441915ef Signed-off-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Klement Sekera <ksekera@cisco.com>
2018-04-17vhost: show vhost-user <interface> may crash [VPP-1242]Steven1-0/+7
show vhost-user <interface> may cause a crash if interface is semi-bogus. Semi-bogus means it is a known vpp interface which has a hw_if_index, but it is bogus because it is not a vhost-user interface. The fix is to add a check to reject non vhost-user interface for the command. Change-Id: I63f1e8bfbf46f5ec4c30f9fb3546982b63cd7cc5 Signed-off-by: Steven <sluong@cisco.com>
2018-04-13Revert "MTU: Setting of MTU on software interface (instead of hardware ↵Damjan Marion1-2/+2
interface)" This reverts commit 70083ee74c3141bbefb185525315f1b34497dcaa. Reverting as this patch is causing following crash: 0: /home/damarion/cisco/vpp3/build-data/../src/vnet/devices/devices.h:131 (vnet_get_device_input_thread_index) assertion `queue_id < vec_len (hw->input_node_thread_index_by_queue)' fails Aborted Change-Id: Ie2a365032110b1f67be7a9d832885b9899813d39 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-04-13MTU: Setting of MTU on software interface (instead of hardware interface)Ole Troan1-2/+2
Change-Id: I98bd454a761a1032738a21edeb0fe847e801f901 Signed-off-by: Ole Troan <ot@cisco.com>
2018-03-30tapv2: Sporadic SIGABRT in ethernet_input [VPP-1183]Steven2-5/+6
virtio_free_rx_buffers uses the wrong slot in the vring to get the buffer index. It uses desc_next. It should be last_used_idx which is the slot number for the first valid descriptor. Change-Id: I6b62b794f06869fbffffce45430b8b2e37b1266c Signed-off-by: Steven <sluong@cisco.com>
2018-03-26afpacket: Fix the reply if itf already exitsMohsin Kazmi1-1/+3
Change-Id: I47768ea50140222fec54e97cbaff2049bd3cb599 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2018-03-22Avoid atomic ops when polling queuesDave Barach1-4/+5
Change-Id: I31c6a0a1d11b5b12d8a5c32c29fea9618b1a53d4 Signed-off-by: Dave Barach <dave@barachs.net>
2018-03-14At AF_PACKET socket create, do intf bind before rx ring cfg to avoid ↵Chaoyu Jin1-12/+12
receiving pkts from other interfaces Change-Id: Ie40ee9129edaac717e716b469f4d10f3c29a4932 Signed-off-by: Chaoyu Jin <chjin@cisco.com>
2018-03-03netlink: Use nl_pid 0 to play nice with others.Jon Loeliger1-1/+1
While the netlink field is named nl_pid, and typically contains a process id, setting it to a pid value directly prevents other modules from also using a netlink socket. On the other hand, setting it to 0 allows multiple modules to use a netlink socket by letting the kernel assign the nl_pid a value. This allows the verito tap code to interact nicely with the router plugin's librtnl after, say, tap-inject has been enabled. Change-Id: I9771929f34d15497a5f7b8c5fd78dac28e31383b Signed-off-by: Jon Loeliger <jdl@netgate.com>
2018-03-02tapv2: CLI and binary API fixesSteven2-3/+3
1. When interface create encouners an error (see test below), the same id cannot be used again. This is due to hash_set is called too early in the function. After the hash entry is set, there are different errors may cause the interface create to be aborted. But we didn't remove the hash entry when error is encountered. The fix is to move the hash_set call near the end which has no more "goto error" DBGvpp# create tap id 1 rx-ring-size 1021 tx-ring-size 1021 create tap id 1 rx-ring-size 1021 tx-ring-size 1021 create tap: ring size must be power of 2 DBGvpp# create tap id 1 rx-ring-size 1024 tx-ring-size 1024 create tap id 1 rx-ring-size 1024 tx-ring-size 1024 create tap: interface already exists DBGvpp# 2. multiple issues exist with api_format.c with the below command binary-api tap_create_v2 id 4 hw-addr 90:e2:ba:76:cf:2f rx-ring-size 1024 tx-ring-size 1024 - hw_addr is not taken due to the test for random mac is inverted - id is an integer, not a string - integer values were not converted to network format Change-Id: I5a669d702a80ad158517df46f0ab089e4d0d692e Signed-off-by: Steven <sluong@cisco.com>
2018-02-28tapv2: abort in tap_create_if (VPP-1179)Steven1-0/+1
The following command sequences cause the crash: create tap id 0 rx-ring-size 1024 tx-ring-size 1024 create tap id 1 rx-ring-size 1024 tx-ring-size 1024 set interface state tap0 up set interface state tap1 up delete tap tap0 delete tap tap1 create tap id 0 rx-ring-size 1024 tx-ring-size 1024 0: /home/sluong/vpp2/vpp/build-data/../src/vnet/interface_funcs.h:46 (vnet_get_hw_interface) assertion `! pool_is_free (vnm->interface_main.hw_interfaces, _e)' fails The reason for the crash is because when the tap interface is deleted, the code does not remove the entry from the device queue. But the interface is deleted anyway from vnet_main.interface_main.hw_interfaces. When an interface is created again, it may encounter the deleted entry in the device queue and crash. Notice create and delete a single entry does not cause a crash. Need to create and delete 2 interfaces to create a "hole" in the device queue. Change-Id: I42ce0b7943d73b3eab32a16751a0a3183de62d9f Signed-off-by: Steven <sluong@cisco.com>
2018-02-28at af_packet input, drop partial packets to prevent l4 checksum deadloop at ↵Chaoyu Jin1-4/+17
ouptut Change-Id: I6f75b7328fd0aa71d00a701e36c8b4ad06bff3c4 Signed-off-by: Chaoyu Jin <chjin@cisco.com>
2018-02-19virtio: add missing tx lock when running multithreadedDamjan Marion3-0/+10
Change-Id: I373f429c53c6f66ad38322addcfaccddb7761392 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-02-08virtio: reset vnet header on txDamjan Marion1-0/+3
Change-Id: Ib04a8787038fb536470a04d99fdc165102edfb5a Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-02-08vhostuser: Fix vhostuser file descriptor leakHaiyang Tan1-4/+13
In the case that vhostuser server accepted more than one client connection, 'vui->clib_file_index' will be overwritten directly without release the possible existed resource, so file descriptor leak occurs Change-Id: I89d08133dae31a12a815df2631334dbf0aefeb1e Signed-off-by: Haiyang Tan <haiyang.tan.dev@gmail.com>
2018-02-07vhost: Added ARMV8 NEON version of function map_guest_mem()Nitin Saxena1-0/+69
(VPP-1085) The NEON implementation searches particular address in VHOST_MEMORY_MAX_NREGIONS regions. Searching two regions at a time. Change-Id: Icc3c6746bc98e3a1fa71424e51b64f62efbfdc74 Signed-off-by: Nitin Saxena <nitin.saxena@cavium.com>
2018-02-07af_packet: Fix lock positionPierre Pfister1-2/+1
In multi-worker cases, af-packet tx was subject to a pretty serious race condition as the device lock was obtained after some queue values were read from queue. Result could go from packet loss to queue inconsistency, leading to tx being stuck for 'some time'. The fix is really simple. Finding the problem was not... Change-Id: Ib18967b7459a8609428a56de934c577cea87b165 Signed-off-by: Pierre Pfister <ppfister@cisco.com>
2018-02-06vlib: epoll on worker threadsDamjan Marion5-1/+9
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>
2018-02-05vhost_user: code cleanupHaiyang Tan1-4/+4
1. Replace the magic number '-1' with MAP_FAILED 2. On x86 platform, QEMU uses vhostuser required the memory back-end is file based, the file could be tmpfs(4K page size) or hugetlbfs(2M or 1G page size) Change-Id: If1818cb6833728d641f68e4d4a3bc645e70f2ee6 Signed-off-by: Haiyang Tan <haiyang.tan.dev@gmail.com>
2018-01-30VPP-899: Run VPP under SELinuxBilly McFall1-13/+17
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>