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2021-11-05devices: remove dead code in pipeDamjan Marion1-2/+1
Type: refactor Change-Id: If4a0484afebe53d53d79ab5cb72299e6298cfee7 Signed-off-by: Damjan Marion <damarion@cisco.com>
2021-11-05virtio: fix the initializationMohsin Kazmi1-1/+1
Type: fix Fixes: d96b28ac0917 ("virtio: improve input node performance") vlib_buffer_t is defined on stack to be used for input feature arc lookup once per frame call for performance reasons. The definition is missing the initialization to avoid the assignment of garbage value. Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: Ie7930186bbd8240c44d257808ebd31e06e854b29
2021-10-29devices: default mode eth in the apiNathan Skrzypczak2-2/+4
Type: fix https://gerrit.fd.io/r/c/vpp/+/34027 added support for l3 mode, but as the eth_mode constant was set to 1 we did default to l3 mode in the api. This reverts to the original logic. Change-Id: If8b90b300d3868de5233dfa1f33ec975853cba11 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2021-10-28tap: handle null namespace and bridge correctlyMatthew Smith1-2/+4
Type: fix In tap_create_if(), if args->host_namespace or args->host_bridge are null because no values were set for those, the virtio_if_t entry in virtio_main.interfaces ends up getting populated with values of "(nil)" in net_ns or host_bridge, respectively. Check whether args->host_namespace and args->host_bridge are null before trying to set the corresponding fields on virtio_if_t. Change-Id: I8e1e66a6d7b246e7c66fece406d116ffb1312c64 Signed-off-by: Matthew Smith <mgsmith@netgate.com>
2021-10-27devices: fix coverity warning/don't leak fdKlement Sekera1-1/+2
Move socket creation past code which returns from function to avoid leaking the socket in case of an early error return. Type: fix Signed-off-by: Klement Sekera <ksekera@cisco.com> Change-Id: I9e18bd32022441c17ca920d1c2458b058b76c3c0
2021-10-22devices: add support for l3 af_packet interfaceMohsin Kazmi5-37/+106
Type: improvement Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: Ia6b9d4ac55be2216887bfdb99be4021f6a96f166
2021-10-06docs: vnet comment nitfixesNathan Skrzypczak1-31/+37
Type: improvement Change-Id: Iac01d7830b53819ace8f199554be10ab89ecdb97 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2021-10-05tap: free the tap_fds vec on interface deletionMohsin Kazmi1-0/+1
Type: fix Tap fds are stored in vector array but deleting tap was not freeing this vector. This patch fixes it. Change-Id: I5228e3b9f432c69cf2656b2ee7402360d775964b Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-10-04virtio: remove control queue support from virtio_show() for tap/tunMohsin Kazmi1-6/+0
Type: fix Tap/Tun interfaces do not have control queue. This patch removes the support of control queue from virtio_show() which is used by show tap/tun cli. Change-Id: Ib89144ad488ed548fb1ce50ee232a1b8659ccf29 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-10-01devices: add support for pseudo header checksumMohsin Kazmi3-15/+49
Type: improvement Linux uses pseudo header checksum when checksum of l4 is offloaded. This patch adds similar support in virtual interfaces. Change-Id: I6a94d1104e59356f95057e7c122e3be9cd8659a3 Signed-off-by: Aloys Augustin <aloaugus@cisco.com> Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-09-29tap: Fix tap create with nsNathan Skrzypczak1-55/+24
This fixes the interface creation passing a netns. [0] made the renaming of the new tuntap interface before switching netns Thus, preventing creating an interface in another netns if one exists in VPP's netns with the same name. This also fixes restore netns on errors Type: fix [0] https://gerrit.fd.io/r/c/vpp/+/33696 Change-Id: I5c83bb37d664057bcf231cd0c636f0e51aa542ad Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2021-09-28devices: Add queues params in create_ifNathan Skrzypczak7-96/+185
Type: feature Change-Id: I027ff2c5c905a7ccebd3705a58e35218a94f4880 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2021-09-27virtio: Still init unused txqNathan Skrzypczak1-17/+0
Type: fix For some virtio backends, packets don't seem to flow if all the queues that have been requested are not initialized Change-Id: I41765d668497ff954e6d69d36836590947fd93b1 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2021-09-27tap: move the api msg_id_base to tap_main_tMohsin Kazmi2-3/+3
Type: fix Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: Ia4065550a7ad1109e3a2592ef2c21b5e23fa85b5
2021-09-22tap: remove cxq_vring from tap/tunMohsin Kazmi1-1/+0
Type: fix virtio_if_t is shared data struct between tap, tun and virtio pci. cxq_vring is virtio pci specific element. It shouldn't be set or accessed in tap driver. Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: I8b34570f61b38d8b9d79d5b0669bda0f89ebc28c
2021-09-22virtio: fix the type of argument in virtio_show()Mohsin Kazmi2-7/+8
Type: fix virtio have three different interfaces (tap, tun and native virtio). virtio_show() is used by CLI commands to show information about these interfaces. It uses interface type to print interface specific information. virtio_show() should use proper type for virtio interfaces (TAP, TUN, VIRTIO). Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: I2043dc2cfe2e2f6c7c9348b8494aa4a27cab31f3
2021-09-15tap: set device name on creation via TUNSETIFFDuncan Eastoe1-17/+8
Type: fix Currently when a new TAP/TUN device is created from tap_create_if() via the TUNSETIFF ioctl(), a name is allocated by the kernel (eg. tap0). If the caller supplied a name this is subsequently set via netlink, after the device has been created. Now we request the kernel to create the new device with the caller's requested name in the first instance, thus avoiding the need to rename the device, and therefore avoiding a window where the device exists with a different name. This can be beneficial, for example, when writing systemd-udevd link files [1]. Having the TAP/TUN devices created with the requested name ensures they can be correctly matched by the OriginalName option. Writing link files might be necessary, for example, to avoid VPP and systemd-udevd racing to set the MAC address on a newly created TAP interface. systemd-udevd can be configured to not manipulate the MAC addresses of matched interfaces. These changes also resolve an issue where the created device would not be renamed if the caller requested it be moved to a different network namespace, since vnet_netlink_set_link_name() was not called in that case. [1] https://www.freedesktop.org/software/systemd/man/systemd.link.html Signed-off-by: Duncan Eastoe <duncan@graphiant.com> Change-Id: I3d657632856d03979d6b914225c3c841c379e0a1
2021-09-07devices: restore regular af-packet tx pathMohammed Hawari2-21/+28
This change restores the af_packet tx path prior in use prior to Change Idf0bdd88990254a614962c2f7bc3e0292ccfd61a but fixes the stalling issue by ensuring that the next tx frame pointer is only incremented when a new tx frame is used. This change also enables the af_packet PACKET_QDISC_BYPASS option, for better performance. Change-Id: I65dde648ed66d21654847a900ceda5a8980ae6ec Type: improvement Signed-off-by: Mohammed Hawari <mohammed@hawari.fr>
2021-08-26vhost: migrate to new TX infraSteven Luong3-88/+67
Take advantage of the new TX infra and support manual thread placement Type: improvement Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: Id8023846a2eb59125fcf2f80f4f11eb681cf14dc
2021-08-20vlib: add format_vnet_buffer_no_chainBenoît Ganne1-3/+2
- add format_vnet_buffer and format_vnet_buffer_no_chain to mirror format_vlib_buffer and format_vlib_buffer_no_chain - format_vnet_buffer used to be the "no chain" version, replace all of its current use with the corresponding format_vnet_buffer_no_chain - add a function to dump vnet buffer details from gdb Type: improvement Change-Id: I143ce845f80e7ef937ea33a557b6e3b5988c5b8f Signed-off-by: Benoît Ganne <bganne@cisco.com>
2021-08-18vhost: interrupt mode support with mqSteven Luong3-138/+209
vhost interrupt mode support with mq does not work when coalesce frame is not configured to 0. When packed-ring is configured, we were also setting the wrong flag for want-interrupt. No need to trigger an interrupt to RX infra if there is at least one queue in the same thread that is doing polling. Type: fix Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I8e64250f2aa6bf611a777a53e4d2c1076d83305f
2021-07-22vppinfra: add abstract socket & netns fnsNathan Skrzypczak1-32/+14
* Add clib_socket_init support for abstract sockets if name starts with an '@' * Add clib_socket_init_netns to open socket in netns * Add clib_netns_open Type: feature Change-Id: I89637ad657c702ec38ddecb5c03a1673d0dfb104 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2021-07-15misc: replace CLIB_PREFETCH with clib_prefetch_{load,store}Damjan Marion3-16/+16
Type: refactor Change-Id: Id10cbf52e8f2dd809080a228d8fa282308be84ac Signed-off-by: Damjan Marion <damarion@cisco.com>
2021-07-08tap: Set the MTU on the TUN deivceNeale Ranns1-0/+13
Type: fix For a TAP device the MTU is set via the ethernet_register for TUN we need to do it explicitly (like we do for other tunnel types). Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Ie6a13c795acb35b53f8d99b05c70c3e73a7b428e
2021-06-23virtio: api cleanupFilip Tehlar2-49/+13
Use autogenerated code. Does not change API definitions. Type: improvement Signed-off-by: Filip Tehlar <ftehlar@cisco.com> Change-Id: I4f9316b16f16a48e2042aa17db596bfd181bd314
2021-06-22virtio: api cleanupFilip Tehlar1-54/+9
Use autogenerated code. Does not change API definitions. Type: improvement Signed-off-by: Filip Tehlar <ftehlar@cisco.com> Change-Id: I047310b8c9fcc51dcfb187710ff59b7895abe217
2021-06-22devices: af_packet api cleanupFilip Tehlar1-53/+8
Use autogenerated code. Does not change API definitions. Type: improvement Signed-off-by: Filip Tehlar <ftehlar@cisco.com> Change-Id: Ic7979755494a2fd23b9fa3d74e14f6b9ea0a46d0
2021-06-22devices: tapv2 api cleanupFilip Tehlar1-49/+12
Use autogenerated code. Does not change API definitions. Type: improvement Signed-off-by: Filip Tehlar <ftehlar@cisco.com> Change-Id: I0a2c1cbbe798ddf9d08da78bf0b458a0f54fa13a
2021-06-22devices: api cleanupFilip Tehlar1-52/+8
Use autogenerated code. Does not change API definitions. Type: improvement Signed-off-by: Filip Tehlar <ftehlar@cisco.com> Change-Id: I03f51393a92bae45608d9fc9f53164f3b0add3cd
2021-06-07pg: Reduce the inclusion of pg.hNeale Ranns1-0/+3
Type: style reduce the number of files recompiled after changing pg.h from 1110 to 102. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: I50611eba818eeb3a2dffd437a3c72c77766bed80
2021-05-17virtio: add the checks for descriptors chain lenMohsin Kazmi1-0/+23
Type: fix virtio uses indirect descriptors for chain buffers. indirect descriptor chain is mapped on a vlib_buffer_t. Single descriptor is 16 bytes and vlib_buffer_t has 2048 bytes space. So maximum long chain can have 128 (=2048/16) indirect descriptors. This patch adds check to make sure descriptors chain len should not exceed 128. Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: I060cfb7709568f42c9b5634527172690ce66a1a3
2021-05-08vhost: low performance in interrupt mode in some casesSteven Luong1-35/+19
When vhost and another interface, say tap, are configured for interrupt mode, performance number may be very low from vhost. Further analysis discovers that when vhost posts an interrupt to the RX infra, there is a 10 msec delay in waking up its input routine. The delay is due to vhost posts the interrupt from the main thread which tries to wake up the worker thread. The fix is for vhost to move the posting interrupt call to the corresponding input worker thread by calling vnet_hw_if_set_rx_queue_file_index() to set it up. While at it, streamline the function vhost_user_kickfd_read_ready() since it will be called from the worker thread. Type: fix Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: I9beedcd33e1558c8335da4ee7fadc51c29ee4589
2021-05-06vlib: fix the offload flags sizeMohsin Kazmi5-6/+6
Type: fix Change-Id: I433fe3799975fe3ba00fa30226f6e8dae34e88fc Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-05-05vlib: move offload flags to 1st cacheline in vlib_buffer_tMohsin Kazmi2-3/+3
Type: improvement Some tests i.e. ipsec see performance regression when offload flags are moved to 2nd cacheline. This patch moves them back to 1st cacheline. Change-Id: I6ead45ff6d2c467b0d248f409e27c2ba31758741 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-05-04virtio: add simple drop counter for interfaceMohsin Kazmi1-30/+33
Type: improvement Change-Id: I4ac6b1a6553e26a5c26b6761fa3c4cc5d4925486 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-05-04virtio: fix the interruptMohsin Kazmi3-162/+202
Type: fix virtio/tap interfaces set the empty buffers in the input node for receiving data. Backend uses those buffers, fills them with data and notifies the virtio/tap driver. But virtio/tap driver gets into stall state if interface is created and configured through exec script on VPP startup.conf and put the interface in interrupt mode while VPP is only configured with main thread. This patch fixes the problem by prefilling buffers during the interface creation. Change-Id: Ibc4d0e70e127ccc4b7cf8b2b18406ae4b02c73b4 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-05-01vlib: refactor trajectory trace debug featureBenoît Ganne3-7/+0
trajectory trace has been broken for a while because we used to save the buffer trajectory in a vector pointed to in opaque2. This does not work well when opaque2 is copied (eg. because of a clone) as 2 buffers end up sharing the same vector. This dedicates a full cacheline in the buffer metadata instead when trajectory is compiled in. No dynamic allocation, no sharing, no tears. Type: refactor Change-Id: I6a028ca1b48d38f393a36979e5e452c2dd48ad3f Signed-off-by: Benoît Ganne <bganne@cisco.com>
2021-04-08devices: af_packet - use netlink to get/set mtuAloys Augustin3-23/+100
The /sys filesystem is not always accurate when switching network namespaces. Using netlink should work in more situations. Type: improvement Change-Id: I71611f14319820469ea7794eec5b7c6c70e2be6d Signed-off-by: Aloys Augustin <aloaugus@cisco.com>
2021-04-05vhost: Crash upon disconnectSteven Luong1-1/+1
Patch 24601 introduced description into template. In vhost_user_process, template is reused inside the while loop to call clib_file_add. But description is allocated outside of the loop only once. As a result, the same storage for description is being referenced by all instances of call to clib_file_add. As long as we don't call clib_file_del, we may be good with multiple fds sharing the same storage for the description. When one of the fds disconnects and frees the description, the other fds is holding onto the free memory pointer. Bad news eventually happens when another fd disconnects and frees the description that was already free previously. The fix is to move the allocation of description inside the loop to avoid sharing. Type: fix Fixes: gerrit.fd.io/r/c/vpp/+/24601 Signed-off-by: Steven Luong <sluong@cisco.com> Change-Id: Ie670931acdc2c7b851982d98fd0d837284a19036
2021-03-24virtio: improve compilation timeDamjan Marion1-64/+57
Type: improvement Change-Id: I56dadb852f63da0597ddf4db395a22afdf2d9cc0 Signed-off-by: Damjan Marion <damarion@cisco.com>
2021-03-19interface: add capabilities flagsMohsin Kazmi5-42/+46
Type: improvement This patch adds flags to represent the modern NICs capabilities. Change-Id: I96d38d9ab7eac55974d72795cd100d8337168e1e Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-03-05ipsec: Support async mode per-SANeale Ranns1-1/+1
Type: feature This feautre only applies to ESP not AH SAs. As well as the gobal switch for ayncs mode, allow individual SAs to be async. If global async is on, all SAs are async. If global async mode is off, then if then an SA can be individually set to async. This preserves the global switch behaviour. the stratergy in the esp encrypt.decrypt nodes is to separate the frame into, 1) sync buffers, 2) async buffers and 3) no-op buffers. Sync buffer will undergo a cyrpto/ath operation, no-op will not, they are dropped or handed-off. Signed-off-by: Neale Ranns <neale@graphiant.com> Change-Id: Ifc15b10b870b19413ad030ce7f92ed56275d6791
2021-02-26virtio: place the event fds on worker threads for pci deviceMohsin Kazmi1-0/+11
Type: improvement Change-Id: I8322bca1a9aa75c97c0fe2ff24b2f65fc43242ce Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-02-25ipsec: enable input features on tunnelsBrian Russell1-8/+18
Make the ipsec[46]-tun-input nodes siblings of device-input so that input features can be enabled on them. Register ipsec-tun for feature updates. When a feature is enabled on the device-input arc and the ifindex is an IPSec tunnel, change the end node of the arc for that ifindex to be the appropriate ESP decrypt node. Set a flag on the tunnel to indicate that the feature arc should be started for packets input on the tunnel. Test input policing on ESP IPSec tunnels. Type: improvement Signed-off-by: Brian Russell <brian@graphiant.com> Change-Id: I3b9f047e5e737f3ea4c58fc82cd3c15700b6f9f7
2021-02-24virtio: enable the interrupt support for uio_pci_genericMohsin Kazmi1-11/+4
Type: improvement Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: Ic25ffe9c8e37826733cfb9e62cefb491bb3322bc
2021-02-15vlib: refactor checksum offload supportMohsin Kazmi5-34/+45
Type: refactor This patch refactors the offload flags in vlib_buffer_t. There are two main reasons behind this refactoring. First, offload flags are insufficient to represent outer and inner headers offloads. Second, room for these flags in first cacheline of vlib_buffer_t is also limited. This patch introduces a generic offload flag in first cacheline. And detailed offload flags in 2nd cacheline of the structure for performance optimization. Change-Id: Icc363a142fb9208ec7113ab5bbfc8230181f6004 Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
2021-02-08virtio: use vpp clib_memset instead glibc memsetMohsin Kazmi1-2/+2
Type: improvement Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: Ib3cefe5d27286c4853eb0c0e1803a94787a62c97
2021-02-08virtio: add atomic call for kickingMohsin Kazmi2-20/+6
Type: fix Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: I41faa2ca249ff75e564a732af896e6b5d76bf665
2021-02-05devices: af-packet gso mtuNathan Skrzypczak4-38/+126
Type: fix Set the GSO flag when buffer length exceeds the linux mtu. Don't listen for mtu changes on linux side for now. This also fixes a TX issue, as we only search for valid frames on tx to the extent of n_left, we might stay stuck. Change-Id: Idf0bdd88990254a614962c2f7bc3e0292ccfd61a Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2021-02-01tap: fix the interrupt handlingMohsin Kazmi1-3/+4
Type: fix Interrupt are suppressed from kernel on tx path. Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com> Change-Id: I9f39f343b7e16bad09910766adf0b09654721f67