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2017-09-27VLAN support on host(af-packet) interface.Akshaya N1-3/+26
On host interface if a VLAN tagged packet is received, linux kernel removes the VLAN header from packet byte stream and adds metadata in tpacket2_hdr. This patch explicitely checks for the presense of VLAN metadata and adds it in VPP packet. Change-Id: I0ba35c1e98dbc008ce18d032f22f2717d610c1aa Signed-off-by: Akshaya N <akshaya@rtbrick.com>
2017-09-22vhost-user: fix link-up statusYoann Desmouceaux1-1/+1
When changing the admin state of a vhost-user interface, do not put it in link-up mode if the interface is not actually ready. Change-Id: Idbc631a7126efa79d199909f9e7656d21bd412ca Signed-off-by: Yoann Desmouceaux <ydesmouc@cisco.com>
2017-09-15vppinfra: add clib_mem_vm_ext_alloc functionDamjan Marion1-2/+2
Change-Id: Iff33694fc42cc3bcc73cf1372339053a6365039c Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-09-09move unix_file_* code to vppinfraDamjan Marion6-47/+47
This will allow us to use this code in client libraries without vlib. Change-Id: I8557b752496841ba588aa36b6082cbe2cd1867fe Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-09-08vlib: move linux-specific code to vlib/linuxDamjan Marion1-0/+1
Change-Id: Id79d2c2be7a98e15416a537c890a8f2dd6d4464d Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-09-07Devices: Set interface rx-mode may cause SIGSEGV with nonexistent queueSteven1-0/+8
When I type in set interface rx-mode with a nonexistent queue, I got a crash with the following traceback. It looks like the vm is NULL when vlib_node_get_runtime is called. DBGvpp# sh int rx Thread 0 (vpp_main): node dpdk-input: TenGigabitEthernet5/0/0 queue 0 (polling) TenGigabitEthernet5/0/1 queue 0 (polling) TenGigabitEthernet7/0/0 queue 0 (polling) TenGigabitEthernet7/0/1 queue 0 (polling) node vhost-user-input: VirtualEthernet0/0/2 queue 0 (adaptive) DBGvpp# set interface rx-mode VirtualEthernet0/0/2 queue 1 polling Thread 1 "vpp_main" received signal SIGSEGV, Segmentation fault. 0x00007ffff6d4e0bc in vlib_node_get_runtime (vm=0x0, node_index=125) at /home/sluong/vpp/build-data/../src/vlib/node_funcs.h:92 92 vlib_node_t *n = vec_elt (nm->nodes, node_index); (gdb) where at /home/sluong/vpp/build-data/../src/vlib/node_funcs.h:92 at /home/sluong/vpp/build-data/../src/vlib/node_funcs.h:112 vnm=0x6f0fa0 <vnet_main>, hw_if_index=7, queue_id=1, mode=0x7fffb62099e8) at /home/sluong/vpp/build-data/../src/vnet/devices/devices.c:307 hw_if_index=7, queue_id=1, mode=VNET_HW_INTERFACE_RX_MODE_POLLING) at /home/sluong/vpp/build-data/../src/vnet/interface_cli.c:1192 vm=0x7ffff7b9d440 <vlib_global_main>, input=0x7fffb6209ef0, cmd=0x7fffb61d5d14) at /home/sluong/vpp/build-data/../src/vnet/interface_cli.c:1288 vm=0x7ffff7b9d440 <vlib_global_main>, cm=0x7ffff7b9d630 <vlib_global_main+496>, input=0x7fffb6209ef0, parent_command_index=18) at /home/sluong/vpp/build-data/../src/vlib/cli.c:588 vm=0x7ffff7b9d440 <vlib_global_main>, cm=0x7ffff7b9d630 <vlib_global_main+496>, input=0x7fffb6209ef0, parent_command_index=12) The fix is to add a check for vec_len(hw->input_node_thread_index_by_queue) and vec_len (hw->rx_mode_by_queue) to reject the command if the queue_id is out of bound. While at it, I notice inputting queue_id=-1 is being interpreted as all queues. An easy fix is to not overload the queue_id variable with -1 to mean something else. Change-Id: Id70ec3e7d06ccc67635e6d28ef53420bdac4a988 Signed-off-by: Steven <sluong@cisco.com>
2017-08-31vhost: Disallow interrupt mode config if driver opts out interrupt supportSteven2-3/+9
According to the spec, supporting interrupt mode from the driver is optional, not a must. When interrupt mode is configured on the interface, we should check to make sure that the driver didn't opt out for the kickfd support and reject the configuration if it did. Change-Id: I7d3dbaddde65458e1a6a802754a3768ae8685a0e Signed-off-by: Steven <sluong@cisco.com>
2017-08-30vhost: Cache qsz_mask instead of qsz in vhost_user_vring_tSteven2-32/+28
In the data path, we grab qsz from vhost_user_vring_t to compute qsz_mask and store it in a stack variable to use on many occasions. We never use qsz for any meaningful purpose. It is more useful to cache qsz_mask in vhost_user_vring_t to avoid the needless computation in the data path. Change-Id: Idf4d94a9754d5c75c899f1f4f59602275b9904a6 Signed-off-by: Steven <sluong@cisco.com>
2017-08-28vhost: Remove operation mode in the APISteven1-6/+0
create/delete/modify vhost_user APIs no longer support the operation mode (polling/interrupt/adaptive). They are now done via the generic interface. Change-Id: I9e9bd503f9b56c953ecd2b271b3e2007da20c72a Signed-off-by: Steven <sluong@cisco.com>
2017-08-18Use correct msg ID in the sw-interface-event from TAP and VHOSTNeale Ranns1-1/+1
Change-Id: I0124fa264f7f390fc7cd9722da59be03116831c5 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-08-11Dedicated SW Interface EventNeale Ranns1-3/+3
Change-Id: I06a10a4291e61aec3f1396d2514ed6fe3901897a Signed-off-by: Neale Ranns <neale.ranns@cisco.com> Signed-off-by: Marek Gradzki <mgradzki@cisco.com>
2017-08-01P2P EthernetPavel Kotucek1-0/+6
Change-Id: Idb97e573961b3bc2acdeef77582314590795f8c3 Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>
2017-07-27vhost: debug vhost-user command needs better error checking on the syntax ↵Steven1-5/+26
(VPP-916) The syntax for debug vhost-user is debug vhost-user <on | off> However, currently the code does not reject the invalid command such as below debug vhost-user debug vhost-user on blah debug vhost-user off blah The fix is to enforece the correct syntax and reject the command when invalid option is entered. Change-Id: I1a04ae8ddb6dd299aa6d15b043362964e685ddde Signed-off-by: Steven <sluong@cisco.com> (cherry picked from commit 6a4de2764d9e6cadf36af824dddb3f33c2d6dc7e)
2017-06-29Fix SIGBUS on aarch64Christophe Fontaine1-1/+1
A call to 'clib_smp_swap (&((dq)->interrupt_pending), 0)' was creating a SIGBUS. Instead of making dq->interrupt_pending aligned on 64bits, we reduce the size from uword (u64) to u32, as the number of pending interrupts will never go above max of u32. Change-Id: Ifa5a6d3b7adee222329a671be01305cf50853b33 Signed-off-by: Christophe Fontaine <christophe.fontaine@enea.com>
2017-06-21Introduce default rx mode for device driversDamjan Marion1-0/+3
If interface is down and queues are not configured then we are not able to change rx-mode. This change introducess default mode which is stored per interface and applied if driver wants. Change-Id: I70149c21c1530eafc148d5e4aa03fbee53dec62f Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-06-16Add missing barrier sync to rx placement infra codeDamjan Marion1-5/+15
Change-Id: I25ccf8260dbe7e1550aee3904a688fc135ce1f03 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-06-02vhost: add debug vhost-user on | off CLISteven2-20/+59
Add runtime debug vhost-user on | off CLI to facilitate troubleshooting. This feature is needed to avoid recompiling the code to debug vhost issues. The debugging messages should not be on the data path to avoid performance hit. Change-Id: I4c40f65dbb222557cba3fb8706fa3b7b62eec95f Signed-off-by: Steven <sluong@cisco.com>
2017-05-25af_packet: fix coverity errorRay Kinsella1-2/+19
Fix coverity error associated with fd. Change-Id: I0648aebaf356308bc03cc7217922479bfc4e22f7 Signed-off-by: Ray Kinsella <ray.kinsella@intel.com>
2017-05-22vhost: migrate to use device infra for worker thread assignment, rx-mode.Steven4-484/+336
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>
2017-05-20vhost: buffers leak and interface disable upon vring descriptor out of mmapSteven1-16/+9
When processing a vring descriptor which is outside of mmap, we disable the interface and spit a message to shut/no shut the interface. This is not practical as application using vhost cannot constantly checking the logs and do the recovery. The proposed fix is to log an error, like other errors that we encounter. The other bug is buffer leak in the function rewind. At the end of the while loop when b_current != b_head, we still have to give back 1 more buffer or add 1 to rx_buffers_len. Change-Id: I68c0b24f070e644cd8878f42272a7b518f14393f Signed-off-by: Steven <sluong@cisco.com>
2017-05-20af_packet: set mac address supportRay Kinsella1-1/+47
Added support to the interfaces mac address. Resolved an fd leak when the interface is a bridge. Change-Id: I6608c51b11a50bd0ae4aabe0dc5788c4301b5a1e Signed-off-by: Ray Kinsella <ray.kinsella@intel.com>
2017-05-17vhost: bad packet assembled from descriptor chainingSteven1-1/+2
When the descriptor is chained via multiple parts, vhost is supposed to reassemble the different parts to form a packet prior to passing the packet to the next input node. However, bad packet was seen, having bad ethertype, source, and destination mac addresses. The problem was due to the destination pointer not being incremented as each chain is processed. THe result was the first chain is copied to the beginning of the buffer, the next chain is copied, then the last chain is also copied to the beginning of the buffer. As a result, the ethertype, source and destination mac, etc, are being overwritten by the very last chain of the descriptor. Change-Id: I78f9a91de68c85574047912576dcc311d7597e21 Signed-off-by: Steven <sluong@cisco.com>
2017-05-15af_packet: support changing the mtu sizeRay Kinsella1-1/+23
Added support to the af_packet device to change the MTU size. Change-Id: I9c9e1e17323721f3efccf70a10b753e12eef94d5 Signed-off-by: Ray Kinsella <ray.kinsella@intel.com>
2017-05-10device: Add callback for set interface rx-modeSteven1-0/+1
- When the interface rx-mode is changed via CLI, the corresponding device may want to know about it and to reset the driver. This patch is to add the callback. - In the function vnet_hw_interface_set_rx_mode, it appears it is missing a line hw->rx_mode_by_queue[queue_id] = mode because the function is checking if the new mode is the same as hw->rx_mode_by_queue which is initialized to POLLING. So if the function is called to change the mode to interrupt, it just returns without doing anything. This is the check that I am talking about in the same function. if (hw->rx_mode_by_queue[queue_id] == mode) return 0; Change-Id: Iaca2651c43e0ae3fda6fd8dc128e247b0851cc65 Signed-off-by: Steven <sluong@cisco.com>
2017-05-09Fix remaining 32-bit compile issuesDamjan Marion1-1/+1
Change-Id: I9664214652229b663c3e3ba7406b4ede96bfb123 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-05-02Add interface rx mode commands, unify rx mode and placement CLIDamjan Marion3-176/+48
Change-Id: Ib506c3e9d66170f29e3266ad6dc4d32b829befba Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-28af_packet: reflect admin device state on hostRay Kinsella3-15/+78
Setting the interface state in VPP on an af_packet device, was not being reflected on the host. This implied the user had to set the device state in VPP and then on the host, in order to put the interface into an 'up' state. This changes makes the device state consisent in VPP and the host. Change-Id: I6dc6aee79503e04576683db937b861337a2b375b Signed-off-by: Ray Kinsella <ray.kinsella@intel.com>
2017-04-28vhost: Disallow duplicate path name for vhost interfaceSteven2-1/+37
When creating or modifying a vhost interface, verify if the path name already existed and reject the command. Change-Id: I8b2d33b77c847f774492874f7d194fa72c488479 Signed-off-by: Steven <sluong@cisco.com>
2017-04-26vhost: Fix mmap size calculationPierre Pfister1-3/+3
I had a bug where a requested size of 1G was resulting in an aligned size of '1G + 2M', resulting in an OOM error. Previous code was adding one huge page size when memory is already aligned. Change-Id: Idd3aa0e9b893fb3efccba6ae1c7161e26d3f9456 Signed-off-by: Pierre Pfister <ppfister@cisco.com>
2017-04-26vhost: core dump on quit with worker threadsSteven1-0/+2
Patch 6347 removed the socket file when the interface is deleted and when VPP process is exitting. The CLI for deleting the interface has builtin vlib_worker_thread_barrier_sync to prevent the worker threads from running. Unfortunately, the CLI quit does not have the builtin vlib_worker_thread_barrier_sync. As a result, it may cause the worker thread to crash. The fix is to add the vlib_worker_thread_barrier_sync in vhost_user_exit. Change-Id: I1eff81170e131098f1799662f0ab48d6fca3def7 Signed-off-by: Steven <sluong@cisco.com>
2017-04-25"autoreply" flag: autogenerate standard xxx_reply_t messagesDave Barach3-55/+5
Change-Id: I72298aaae7d172082ece3a8edea4217c11b28d79 Signed-off-by: Dave Barach <dave@barachs.net>
2017-04-24vhost: remove socket linked file when deleting vhost interfaceSteven1-9/+18
- Unlink the file created for the socket when deleting vhost interface if we are the server mode. - Remove all vhost interfaces when VPP process is exitting. Change-Id: Id9b676cd027bbd67b473bbd01901d1ecc4d8e6cb Signed-off-by: Steven <sluong@cisco.com>
2017-04-11Devices: set interface placement does not remove the old interface placementSteven1-3/+0
The command set interface placement is supposed to remove the existing interface placement and add a new interface placement based on the given options. My quick test for the CLI shows that the old interface placement continues to exist. But the new interface placement is also added. The bug exists in vnet_device_input_unassign_thread which checks the old thread index is the same as the passed thread index and skips the deletion if they are the same. The fix is to remove the check which is not supposed to be there. Change-Id: Ib055721fad47513949a03b3cb6dc292bd19fd1e8 Signed-off-by: Steven <sluong@cisco.com>
2017-04-11vhost: interrupt mode enhancementsSteven2-34/+26
- Add cpu index to the vring structure for quick lookup - Reduce the code that needs to be protected by vlib_worker_thread_barrier_sync - Set minimum timer no less than 1 ms Change-Id: Iafef4bf6879a8efb350abf4e0f517e38f7ff7a8b Signed-off-by: Steven <sluong@cisco.com>
2017-04-10Common device-input interrupt infraDamjan Marion4-29/+175
Change-Id: I23b588eb56a3f5690158449a1f9bc8053cd3d251 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-07MPLS McastNeale Ranns1-1/+1
1 - interface-DPO Used in the Data-plane to change a packet's input interface 2 - MPLS multicast FIB entry Same as a unicast entry but it links to a replicate not a load-balance DPO 3 - Multicast MPLS tunnel Update MPLS tunnels to use a FIB path-list to describe the endpoint[s]. Use the path-list to generate the forwarding chain (DPOs) to link to . 4 - Resolve a path via a local label (of an mLDP LSP) For IP multicast entries to use an LSP in the replication list, we need to decribe the 'resolve-via-label' where the label is that of a multicast LSP. 5 - MPLS disposition path sets RPF-ID For a interface-less LSP (i.e. mLDP not RSVP-TE) at the tail of the LSP we still need to perform an RPF check. An MPLS disposition DPO performs the MPLS pop validation checks and sets the RPF-ID in the packet. 6 - RPF check with per-entry RPF-ID An RPF-ID is used instead of a real interface SW if index in the case the IP traffic arrives from an LSP that does not have an associated interface. Change-Id: Ib92e177be919147bafeb599729abf3d1abc2f4b3 Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-04-06Use thread local storage for thread indexDamjan Marion6-126/+130
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>
2017-03-30vppinfra: add spinlock inline functionsDamjan Marion6-26/+12
Change-Id: I86089e9bb604adfc260a111685001be1c897ce53 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-29vhost: vhost-user component may become unusable with too many open files ↵Steven1-9/+20
(VPP-668) When the number of open files is reached in the system, vhost may encounter a failure in socket call and return from vhost-user-process. The return terminates all attempts of incoming socket connections in the future, even if the condition is reconciled. The fix is to not return from vhost-user-process, record the error in the interface, spit out the error, and retry the connection every 3 seconds. Change-Id: I806baedf13e8c9b73e7c7820c094240f39949950 Signed-off-by: Steven <sluong@cisco.com>
2017-03-28af_packet driver needs to check VLIB_BUFFER_NEXT_PRESENT flag is setJim Gibson1-1/+2
when walking vlib_buffer_t next_buffer chain on transmit. On buffer allocation: - next_buffer is not and may contain a stale invalid value that should be ignored if not overwritten by a valid value. - VLIB_BUFFER_NEXT_PRESENT flag is cleared and only set if a valid value is written to next_buffer. Change-Id: I9b0ccdc54f4f7456f8328ce7c4a0d52d0fba8caa Signed-off-by: Jim Gibson <gibson+fdio@cisco.com>
2017-03-26Rename "show interfaces" -> "show interface"Dave Barach2-2/+2
To line up with "show interface placement," recently added. Otherwise, "show int" refers only to "show interface placement," which tends to annoy the cash customers... Change-Id: Iea9e3681aeb051e2b0e1ecbf06706d98af9a3abf Signed-off-by: Dave Barach <dave@barachs.net>
2017-03-22vhost: support interrupt modeSteven2-22/+322
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 Marion5-68/+300
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>
2017-03-17Fix IP feature ordering.Neale Ranns1-1/+0
Drop comes before lookup when enabled. is_first_or_last is not required when setting a feature, the anchor is added in find_config_with_features(). Don't make the PG interfaces automatically L3 enabled, this way we can have tests that check the L3 protocol disbaled behaviour. Change-Id: Icef22a920b27ff9cec6ab2da6b05f05c532cb60f Signed-off-by: Neale Ranns <nranns@cisco.com>
2017-03-16vhost: wrong value return for VHOST_USER_VRING_GET_BASESteven1-4/+11
When the VM is migrated, the driver sends VHOST_USER_VRING_GET_BASE message to the device to get the vring offset. The device is supposed to shut down the vring, and return the current vring offset. What the code did was to shutdown the vring, initialize the vring, and return 0 to the driver. The fix is to first store last_avail_idx in the message and then close the vring. Change-Id: I432e9f50f36d89fe53a45e050edcf5e1218caf7a Signed-off-by: Steven <sluong@cisco.com>
2017-03-10Retire vpp_liteDamjan Marion4-4465/+0
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>
2017-03-09vlib_mains == 0 special cases be goneDave Barach1-5/+4
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>
2017-03-08vhost: binary API changes for interrupt modeSteven4-10/+41
Add operation_mode for create_vhost_user_if, modify_vhost_user_if, and sw_interface_vhost_user_details. Only polling mode is supported for these APIs. Other mode is rejected and gets VNET_API_ERROR_UNIMPLEMENTED error. Change-Id: I0596f4e2c087aa2b6f78eb3e0b63910b1859641e Signed-off-by: Steven <sluong@cisco.com>
2017-03-06features: take device-input buffer advance value directlyDamjan Marion3-4/+3
Change-Id: Ifac7d9134d03d79164ce6f06ae9413279bbaadb3 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-02Clean up binary api message handler registration issuesDave Barach1-9/+1
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>