From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id 0602A2946 for ; Thu, 9 Jun 2016 18:10:40 +0200 (CEST) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP; 09 Jun 2016 09:10:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,445,1459839600"; d="scan'208";a="998666368" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga002.fm.intel.com with ESMTP; 09 Jun 2016 09:10:29 -0700 Received: from sivswdev02.ir.intel.com (sivswdev02.ir.intel.com [10.237.217.46]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id u59GASpV024512 for ; Thu, 9 Jun 2016 17:10:29 +0100 Received: from sivswdev02.ir.intel.com (localhost [127.0.0.1]) by sivswdev02.ir.intel.com with ESMTP id u59GAShH012344 for ; Thu, 9 Jun 2016 17:10:28 +0100 Received: (from reshmapa@localhost) by sivswdev02.ir.intel.com with id u59GASkV012340 for dev@dpdk.org; Thu, 9 Jun 2016 17:10:28 +0100 From: Reshma Pattan To: dev@dpdk.org Date: Thu, 9 Jun 2016 17:10:20 +0100 Message-Id: <1465488628-12297-1-git-send-email-reshma.pattan@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1465462210-4203-1-git-send-email-reshma.pattan@intel.com> References: <1465462210-4203-1-git-send-email-reshma.pattan@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] =?utf-8?q?=5BPATCH_v7_0/8=5D_add_packet_capture_framew?= =?utf-8?q?ork?= X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Jun 2016 16:10:41 -0000 This patch set include below changes 1)Changes to librte_ether. 2)A new library librte_pdump added for packet capture framework. 3)A new app/pdump tool added for packet capturing. 4)Test pmd changes done to initialize packet capture framework. 5)Documentation update. 1)librte_pdump ============== To support packet capturing on dpdk Ethernet devices, a new library librte_pdump is added.Users can develop their own packet capturing application using new library APIs. Operation: ---------- Pdump library provides APIs to support packet capturing on dpdk Ethernet devices. Library provides APIs to initialize the packet capture framework, enable/disable the packet capture and uninitialize the packet capture framework. Pdump library works on client/server based model. Sever is responsible for enabling/disabling the packet captures. Clients are responsible for requesting enable/disable of the packet captures. As part of packet capture framework initialization, pthread and the server socket is created. Only one server socket is allowed on the system. As part of enabling/disabling the packet capture, client sockets are created and multiple client sockets are allowed. Who ever calls initialization first they will succeed with the initialization, next subsequent calls of initialization are not allowed. So next users can only request enabling/disabling the packet capture. Applications using below APIs need to pass port/device_id, queue, mempool and ring parameters. Library uses user provided ring and mempool to mirror the rx/tx packets of the port for users. Users need to dequeue the rings and write the packets to vdev(pcap/tuntap) to view the packets using any standard tools. Note: Mempool and Ring should be mc/mp supportable. Mempool mbuf size should be big enough to handle the rx/tx packets of a port. APIs: ----- rte_pdump_init() rte_pdump_enable() rte_pdump_enable_by_deviceid() rte_pdump_disable() rte_pdump_disable_by_deviceid() rte_pdump_uninit() 2)app/pdump tool ================ Tool app/pdump is designed based on librte_pdump for packet capturing in DPDK. This tool by default runs as secondary process, and provides the support for the command line options for packet capture. ./build/app/dpdk_pdump -- --pdump '(port= | device_id=), (queue=), (rx-dev= | tx-dev=), [ring-size=], [mbuf-size=], [total-num-mbufs=]' Parameters inside the parenthesis represents the mandatory parameters. Parameters inside the square brackets represents optional parameters. User has to pass on packet capture parameters under --pdump parameters, multiples of --pdump can be passed to capture packets on different port and queue combinations Operation: ---------- *Tool parse the user command line arguments, creates the mempool, ring and the PCAP PMD vdev with 'tx_stream' as either of the device passed in rx-dev|tx-dev parameters. *Then calls the APIs of librte_pdump i.e. rte_pdump_enable()/rte_pdump_enable_by_deviceid() to enable packet capturing on a specific port/device_id and queue by passing on port|device_id, queue, mempool and ring info. *Tool runs in while loop to dequeue the packets from the ring and write them to pcap device. *Tool can be stopped using SIGINT, upon which tool calls rte_pdump_disable()/rte_pdump_disable_by_deviceid() and free the allocated resources. Note: CONFIG_RTE_LIBRTE_PMD_PCAP flag should be set to yes to compile and run the pdump tool. 3)Test-pmd changes ================== Changes are done to test-pmd application to initialize/uninitialize the packet capture framework. So app/pdump tool can be run to see packets of dpdk ports that are used by test-pmd. Similarly any application which needs packet capture should call initialize/uninitialize APIs of librte_pdump and use pdump tool to start the capture. 4)Packet capture flow between pdump tool and librte_pdump ========================================================= * Pdump tool (Secondary process) requests packet capture for specific port|device_id and queue combinations. *Library in secondary process context creates client socket and communicates the port|device_id, queue, ring and mempool to server. *Library initializes server in primary process 'test-pmd' context and server serves the client request to enable Ethernet rxtx call-backs for a given port|device_id and queue. *Copy the rx/tx packets to passed mempool and enqueue the packets to ring for secondary process. *Pdump tool will dequeue the packets from ring and writes them to PCAPMD vdev, so ultimately packets will be seen on the device that is passed in rx-dev|tx-dev. *Once the pdump tool is terminated with SIGINT it will disable the packet capturing. *Library receives the disable packet capture request, communicate the info to server, server will remove the Ethernet rxtx call-backs. *Packet capture can be seen using tcpdump command "tcpdump -ni " (or) "tcpdump –nr " 5)Example command line ====================== ./build/app/dpdk_pdump -- --pdump 'device_id=0000:02:0.0,queue=*,tx-dev=/tmp/dt-file.pcap,rx-dev=/tmp/dr-file.pcap,ring-size=8192,mbuf-size=2176,total-num-mbufs=32768' --pdump 'device_id=0000:01:00.0,queue=*,rx-dev=/tmp/d-file.pcap,tx-dev=/tmp/d-file.pcap,ring-size=16384,mbuf-size=2176,total-num-mbufs=32768' v7: fixed lines over 90 characters. v6: removed below deprecation notice patch from patch set. http://dpdk.org/dev/patchwork/patch/13372/ v5: addressed code review comments for below patches http://dpdk.org/dev/patchwork/patch/12955/ http://dpdk.org/dev/patchwork/patch/12951/ v4: added missing deprecation notice for ABI changes of rte_eth_dev_info structure. made doc changes as per doc guidelines. replaced rte_eal_vdev_init with rte_eth_dev_attach in pdump tool. removed rxtx-dev parameter from pdump tool command line. v3: app/pdump: Moved cleanup code from signal handler to main. divided librte_ether changes into multiple patches. example command changed in app/pdump application guide v2: fix compilation issues for 4.8.3 fix unnecessary #includes Reshma Pattan (8): librte_ether: protect add/remove of rxtx callbacks with spinlocks librte_ether: add new api rte_eth_add_first_rx_callback librte_ether: add new fields to rte_eth_dev_info struct librte_ether: make rte_eth_dev_get_port_by_name rte_eth_dev_get_name_by_port public lib/librte_pdump: add new library for packet capturing support app/pdump: add pdump tool for packet capturing app/test-pmd: add pdump initialization uninitialization doc: update doc for packet capture framework MAINTAINERS | 8 + app/Makefile | 1 + app/pdump/Makefile | 45 ++ app/pdump/main.c | 844 +++++++++++++++++++++++++++++++ app/test-pmd/testpmd.c | 6 + config/common_base | 5 + doc/guides/prog_guide/index.rst | 1 + doc/guides/prog_guide/pdump_library.rst | 107 ++++ doc/guides/rel_notes/release_16_07.rst | 13 + doc/guides/sample_app_ug/index.rst | 1 + doc/guides/sample_app_ug/pdump.rst | 122 +++++ lib/Makefile | 1 + lib/librte_ether/rte_ethdev.c | 123 +++-- lib/librte_ether/rte_ethdev.h | 60 +++ lib/librte_ether/rte_ether_version.map | 9 + lib/librte_pdump/Makefile | 55 ++ lib/librte_pdump/rte_pdump.c | 872 ++++++++++++++++++++++++++++++++ lib/librte_pdump/rte_pdump.h | 186 +++++++ lib/librte_pdump/rte_pdump_version.map | 12 + mk/rte.app.mk | 1 + 20 files changed, 2428 insertions(+), 44 deletions(-) create mode 100644 app/pdump/Makefile create mode 100644 app/pdump/main.c create mode 100644 doc/guides/prog_guide/pdump_library.rst create mode 100644 doc/guides/sample_app_ug/pdump.rst create mode 100644 lib/librte_pdump/Makefile create mode 100644 lib/librte_pdump/rte_pdump.c create mode 100644 lib/librte_pdump/rte_pdump.h create mode 100644 lib/librte_pdump/rte_pdump_version.map -- 2.5.0