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path: root/src/plugins/memif/memif_api.c
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2023-04-25memif: support dma optionMarvin Liu1-0/+92
Introduce async model into memif by utilizing new DMA API. Original process is broken down to submission stage and completion stage. As multiple submissions may in flight simultaneously, per thread data is no longer safe, now replace thread data into each dma data structure. As slave side already support zero copy mode, DMA option is only added in master side. Type: feature Signed-off-by: Marvin Liu <yong.liu@intel.com> Change-Id: I084f253866f5127cdc73b9a08c8ce73b091488f3
2023-03-14memif: don't leak error strings in API handlersDamjan Marion1-4/+4
Type: fix Fixes: ab4d917 Change-Id: I226044f64e1577033798fd203a2e981c894830d6 Signed-off-by: Damjan Marion <damarion@cisco.com>
2023-03-06memif: autogenerate socket_idsNathan Skrzypczak1-0/+36
This patch adds an API memif_socket_filename_add_del_v2 that allows autogenerating memif socket_id when passing ~0 in the socket_id field. It opportunistically walks the hash to find a free ID to use, and returns it in the reply. socket_filename also becomes a variable length string, to accomodate for longer names (in case a netns gets passed) Type: feature Change-Id: I33fc3e1cf553af27579d6bad8691b22b530531cc Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
2023-02-06vppinfra: refactor clib_socket_init, add linux netns supportDamjan Marion1-13/+2
Type: improvement Change-Id: Ida2d044bccf0bc8914b4fe7d383f827400fa6a52 Signed-off-by: Damjan Marion <dmarion@me.com>
2023-02-01memif: improve error reportingDamjan Marion1-3/+4
Type: improvement Change-Id: I12b120d988347cced3df82810e86dc2fd5cfca80 Signed-off-by: Damjan Marion <dmarion@me.com>
2022-04-04vppinfra: make _vec_len() read-onlyDamjan Marion1-1/+1
Use of _vec_len() to set vector length breaks address sanitizer. Users should use vec_set_len(), vec_inc_len(), vec_dec_len () instead. Type: improvement Change-Id: I441ae948771eb21c23a61f3ff9163bdad74a2cb8 Signed-off-by: Damjan Marion <damarion@cisco.com>
2020-12-14misc: move to new pool_foreach macrosDamjan Marion1-3/+3
Type: refactor Change-Id: Ie67dc579e88132ddb1ee4a34cb69f96920101772 Signed-off-by: Damjan Marion <damarion@cisco.com>
2019-10-10memif: remove api boilerplateOle Troan1-68/+5
Type: refactor Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: Icab769607c4a5890dc80b8f2661faa7e297c2a27
2019-09-11memif: fix zero-copy arg overwriteJakub Grajciar1-3/+0
Type: fix Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com> Change-Id: I9a34465c85597baecdbc672ce395265f7dbb7f00
2019-09-09memif: API cleanupJakub Grajciar1-9/+25
Use consistent API types. memif_create now enables zero-copy by default. Add no_zero_copy param to memif_create which if set, disables zero copy. Type: refactor Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com> Change-Id: I11df8b9212c40de179ee71dc9da14039b982ede5 Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
2019-09-04memif: always enable zero-copy when creating memif using APIJakub Grajciar1-0/+3
Type: fix Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com> Change-Id: I823b6297e1d2bdd438633ec7b877960e6d8423fa
2019-07-23api: binary api cleanupDave Barach1-2/+5
Multiple API message handlers call vnet_get_sup_hw_interface(...) without checking the inbound sw_if_index. This can cause a pool_elt_at_index ASSERT in a debug image, and major disorder in a production image. Given that a number of places are coded as follows, add an "api_visible_or_null" variant of vnet_get_sup_hw_interface, which returns NULL given an invalid sw_if_index, or a hidden sw interface: - hw = vnet_get_sup_hw_interface (vnm, sw_if_index); + hw = vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index); if (hw == NULL || memif_device_class.index != hw->dev_class_index) return clib_error_return (0, "not a memif interface"); Rename two existing xxx_safe functions -> xxx_or_null to make it obvious what they return. Type: fix Change-Id: I29996e8d0768fd9e0c5495bd91ff8bedcf2c5697 Signed-off-by: Dave Barach <dave@barachs.net>
2019-03-07Remove local REPLY_MACRO so that socket transport works.Ole Troan1-36/+2
memif, lacp, nsh and cdp used local REPLY_MACROs. Remove and use those in api_helper.h Change-Id: Ib01d6ae5cff0b6f1cef90996a54b3177f0c53463 Signed-off-by: Ole Troan <ot@cisco.com>
2018-10-23c11 safe string handling supportDave Barach1-2/+2
Change-Id: Ied34720ca5a6e6e717eea4e86003e854031b6eab Signed-off-by: Dave Barach <dave@barachs.net>
2018-06-27gcc8 and Wstringop-truncationMarco Varlese1-1/+1
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>
2018-02-16memif: VPP-1172: Ensure memif_create reply contains sw_if_indexJon Loeliger1-1/+6
Change-Id: If5cd2e913770adac4e7320f54584da63012f925d Signed-off-by: Jon Loeliger <jdl@netgate.com>
2018-01-29memif: Add new API calls to manage memif socket names.Jon Loeliger1-26/+118
New API calls and corresponding CLI commands allow the user to manage the socket filenames for memif connections using: vppctl# create memif id <u32> filename <socket-filename> vppctl# delete memif id <u32> and then referencing it later in a memif interface: vppctl# create memif <u32> socket-id <id> mode <mode> <master|slave> ... Corresponding VAT cli entries have also been added. The default memif socket file at id 0 are still always present. The existing memif create/delete CLI commands have been slightly altered into the new syntax: vppctl# create interface memif ... vppctl# delete interface memif ... Change-Id: If2bdc7eac3d81e1d9011a5869747e52fc5e11639 Signed-off-by: Jon Loeliger <jdl@netgate.com> Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-01-11api: remove transport specific code from handlersFlorin Coras1-6/+6
This does not update api client code. In other words, if the client assumes the transport is shmem based, this patch does not change that. Furthermore, code that checks queue size, for tail dropping, is not updated. Done for the following apis: Plugins - acl - gtpu - memif - nat - pppoe VNET - bfd - bier - tapv2 - vhost user - dhcp - flow - geneve - ip - punt - ipsec/ipsec-gre - l2 - l2tp - lisp-cp/one-cp - lisp-gpe - map - mpls - policer - session - span - udp - tap - vxlan/vxlan-gpe - interface VPP - api/api.c OAM - oam_api.c Stats - stats.c Change-Id: I0e33ecefb2bdab0295698c0add948068a5a83345 Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-01-09api: refactor vlibmemoryFlorin Coras1-4/+4
- 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>
2017-10-03Repair vlib API socket serverDave Barach1-1/+1
- 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>
2017-09-11memif: mode ip is not settable from binary APISteven1-0/+3
While mode ip is supported via the CLI for creating a memif interface, it is not settable from the binary API due to missing code. While at it, update the help usage to include the missing keyword secret. Change-Id: Ia9c71f4017210a5e1733ce4992fbb566b7d20c1a Signed-off-by: Steven <sluong@cisco.com>
2017-09-08memif: fix coverity warnings as of 9/7Steven1-2/+5
1. coverity complains about "buffer not null terminated" for strncpy because we pass the size of the destination to the call which is equal to the true size of the destination. We subtract 1 for the size to accommodate the null like all other places are already doing it. 2. Add a check to tx_queues in memif_interface_tx_inline to avoid "divide by zero". 3. To avoid null pointer dereference in memif_create_if, change the goto done rather than goto error and spit a more meaningful error rather than silent about it. 4. Shuffle a line to avoid "check after use" in vl_api_memif_delete_t_handler. Change-Id: Icba7ecd5362c012a48ac35795d31aab356617420 Signed-off-by: Steven <sluong@cisco.com>
2017-06-30memif: API message handler registration bug-fixJakub Grajciar1-11/+0
- removed memif details message from memif API Change-Id: I21185e7678f375cc10639cdbc3ad2fd84bc95459 Signed-off-by: Jakub Grajciar <grajciar.jakub@gmail.com>
2017-06-25memif: If rx/tx_queues are unset, use default valuesMilan Lenco1-2/+12
The standard behaviour for binary API is that zeroed arguments are treated as if the default values were set. This way the configurator does not need to know what default values are. This, however, wasn't the case for rx_queues and tx_queues in memif_create binary API message. Change-Id: Ib588b472823f6bbb5ef12a798d68b0dda6dd2139 Signed-off-by: Milan Lenco <milan.lenco@pantheon.tech>
2017-06-12memif: complete refactor of socket handling codeDamjan Marion1-22/+30
Change-Id: I4d41def83a23f13701f1ddcea722d481e4c85cbc Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-05-31memif: multi-queues supportSteven1-0/+5
- Add rx-queues and tx-queues option to the create memif CLI - Add vlib_worker_thread_barrier_sync () to memif_conn_fd_read_ready () as the latter function may disconnect the ring and clean up the shared memory. - On transmit, write the rid (queue number) to the socket. - On receive, read the rid and trigger the interrupt for the corresponding thread. Change-Id: If1c7e26c7124174678f047909cbc33e931eaac8c Signed-off-by: Steven <sluong@cisco.com>
2017-03-22Add memif - packet memory interface for intra-host communicationDamjan Marion1-0/+332
Change-Id: I94c06b07a39f07ceba87bf3e7fcfc70e43231e8a Signed-off-by: Damjan Marion <damarion@cisco.com> Co-Authored-By: Milan Lenco <Milan.Lenco@pantheon.tech>