From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id E539CA00BE; Mon, 25 Apr 2022 03:46:01 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id DF10540F35; Mon, 25 Apr 2022 03:46:01 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by mails.dpdk.org (Postfix) with ESMTP id F0FD54069D for ; Mon, 25 Apr 2022 03:45:59 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650851160; x=1682387160; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=j6yYK9H3hkXWI75ABCQK6LbEUMCxVHDCHK2KECU9HL0=; b=NYPPPFqELMIc4r6NuAXG6X+7kwagZZjd1AmH+bldPma+0zwP8RDL/Y4e ULFg3dACh2bmf0kBmR2JwvbtPRIkZReUddbdnjmSwZrNfqS4WwLYdYcoJ 5gHlLqDl5lvaVtf0P8XJFWn1WcxWytRCsBHTCxVGwg1QVLvCgIjp94iWv 21fKJWytRjdvFcZMSf3OpLX7ehkowzKNZtMpnLYlOyeN+uPkqGoxY9dpU aO8woEcSfp3LTAdgyA5gpkSdX3GmYbYQ8HESFaG0FEl5Udh8/1pL9Ou2I MTBmRL5WwtpNd2HQoZ3w75iO0NXfOreIqRUpOQfgRf+5/8KVS+69lAEx3 g==; X-IronPort-AV: E=McAfee;i="6400,9594,10327"; a="265276794" X-IronPort-AV: E=Sophos;i="5.90,287,1643702400"; d="scan'208";a="265276794" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2022 18:45:41 -0700 X-IronPort-AV: E=Sophos;i="5.90,287,1643702400"; d="scan'208";a="704357052" Received: from unknown (HELO localhost.localdomain) ([10.239.251.222]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Apr 2022 18:45:40 -0700 From: Wei Ling To: dts@dpdk.org Cc: Wei Ling Subject: [dts][PATCH V1 2/3] test_plans/loopback_virtio_user_server_mode_cbdma_test_plan: add loopback_virtio_user_server_mode_cbdma test_plan Date: Mon, 25 Apr 2022 09:45:36 +0800 Message-Id: <20220425014536.1572732-1-weix.ling@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dts@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: test suite reviews and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dts-bounces@dpdk.org As commit 53d3f4778c(vhost: integrate dmadev in asynchronous data-path), add new testsuite loopback_virtio_user_server_mode_cbdma for coverage the loopback virtio-user server mode with cbdma. 1) Add new testplan loopback_virtio_user_server_mode_cbdma_test_plan into test_plans. Signed-off-by: Wei Ling --- ...irtio_user_server_mode_cbdma_test_plan.rst | 372 ++++++++++++++++++ 1 file changed, 372 insertions(+) create mode 100644 test_plans/loopback_virtio_user_server_mode_cbdma_test_plan.rst diff --git a/test_plans/loopback_virtio_user_server_mode_cbdma_test_plan.rst b/test_plans/loopback_virtio_user_server_mode_cbdma_test_plan.rst new file mode 100644 index 00000000..761397df --- /dev/null +++ b/test_plans/loopback_virtio_user_server_mode_cbdma_test_plan.rst @@ -0,0 +1,372 @@ +.. Copyright (c) <2022>, Intel Corporation + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + - Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + - Neither the name of Intel Corporation nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOgit T LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + OF THE POSSIBILITY OF SUCH DAMAGE. + +================================================ +vhost/virtio-user loopback server mode test plan +================================================ + +Description +=========== + +1. Virtio-user server mode is a feature to enable virtio-user as the server, vhost as the client, +thus after vhost-user is killed then relaunched, +virtio-user can reconnect back to vhost-user again; at another hand, +virtio-user also can reconnect back to vhost-user after virtio-user is killed. +2. This feature test need cover different rx/tx paths with virtio 1.0 and virtio 1.1, +includes split ring mergeable, non-mergeable, inorder mergeable,inorder non-mergeable, vector_rx path +and packed ring mergeable, non-mergeable, inorder non-mergeable, inorder mergeable, vectorized path. +3. Split ring and packed ring test when vhost enqueue operation with multi-CBDMA channels. +When DMA devices are bound to vfio driver,VA mode is the default and recommended. For PA mode, +page by page mapping may exceed IOMMU's max capability, better to use 1G guest hugepage. + +For more about dpdk-testpmd sample, please refer to the DPDK docments: +https://doc.dpdk.org/guides/testpmd_app_ug/run_app.html + +For virtio-user vdev parameter, you can refer to the DPDK docments: +https://doc.dpdk.org/guides/nics/virtio.html#virtio-paths-selection-and-usage. + +Prerequisites +============= + +Topology +-------- +Test flow: Virtio-user-->Vhost-user-->Testpmd-->Vhost-user-->Virtio-user + +Hardware +-------- +Supportted NICs: ALL + +Software +-------- +Trex:http://trex-tgn.cisco.com/trex/release/v2.26.tar.gz + +General set up +-------------- +1. Compile DPDK:: + + # CC=gcc meson --werror -Denable_kmods=True -Dlibdir=lib -Dexamples=all --default-library= + # ninja -C -j 110 + +2. Get the PCI device ID and DMA device ID of DUT, for example, 0000:18:00.0 is PCI device ID, 0000:00:04.0, 0000:00:04.1 is DMA device ID:: + + # ./usertools/dpdk-devbind.py -s + + Network devices using kernel driver + =================================== + 0000:18:00.0 'Device 159b' if=ens785f0 drv=ice unused=vfio-pci + + DMA devices using kernel driver + =============================== + 0000:00:04.0 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci + 0000:00:04.1 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci + +Test case +========= + +Common steps +------------ +1. Bind 1 NIC port and CBDMA channels to vfio-pci:: + + # ./usertools/dpdk-devbind.py -b vfio-pci + # ./usertools/dpdk-devbind.py -b vfio-pci + + For example, bind 2 CBDMA channels:: + # ./usertools/dpdk-devbind.py -b vfio-pci 0000:00:04.0,0000:00:04.1 + +2. Attach pdump secondary process to primary process by same file-prefix:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-pdump -v --file-prefix=virtio1 -- \ + --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=./pdump-virtio-rx-q0.pcap,mbuf-size=8000' \ + --pdump 'device_id=net_virtio_user1,queue=0,rx-dev=./pdump-virtio-rx-q0.pcap,mbuf-size=8000' + + +Test Case 1: loopback packed ring all path cbdma test payload check with server mode and multi-queues +----------------------------------------------------------------------------------------------------- +This case uses testpmd to test packed ring all path with multi-queues to test payload check with server mode and relaunch vhost. + +1. Bind 8 CBDMA channel to vfio-pci, as common step 1. + +2. Launch vhost by below command:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \ + -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \ + --vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq6;txq7]' \ + --iova=va -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \ + --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.7,lcore12@0000:00:04.1,lcore12@0000:00:04.2,lcore12@0000:00:04.3,lcore13@0000:00:04.2,lcore13@0000:00:04.3,lcore13@0000:00:04.4,lcore14@0000:00:04.2,lcore14@0000:00:04.3,lcore14@0000:00:04.4,lcore14@0000:00:04.5,lcore15@0000:00:04.0,lcore15@0000:00:04.1,lcore15@0000:00:04.2,lcore15@0000:00:04.3,lcore15@0000:00:04.4,lcore15@0000:00:04.5,lcore15@0000:00:04.6,lcore15@0000:00:04.7] + +3. Launch virtio-user with packed ring mergeable inorder path:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=1,packed_vq=1,server=1 \ + -- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 + testpmd>set fwd csum + testpmd>start + +4. Start pdump to capture virtio-user packets, as common step 2. + +5. Send large pkts from vhost, check loopback performance can get expected and each queue can receive packets:: + + testpmd> set fwd csum + testpmd> set txpkts 64,64,64,2000,2000,2000 + testpmd> set burst 1 + testpmd> start tx_first 1 + testpmd> stop + +6. Quit pdump, check all the packets length are 6192 Byte in the pcap file and the payload in receive packets are same. + +7. Quit and relaunch vhost and rerun step 4-6. + +8. Quit and relaunch virtio with packed ring mergeable path as below:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=0,packed_vq=1,server=1 \ + -- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 + testpmd>set fwd csum + testpmd>start + +9. Rerun steps 4-7. + +10. Quit and relaunch virtio with packed ring non-mergeable path as below:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=0,packed_vq=1,server=1 \ + -- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 + testpmd>set fwd csum + testpmd>start + +11. Send pkts from vhost, check loopback performance can get expected and each queue can receive packets:: + + testpmd> set fwd csum + testpmd> set txpkts 64,128,256,512 + testpmd> set burst 1 + testpmd> start tx_first 1 + testpmd> stop + +12. Quit pdump, check all the packets length are 960 Byte in the pcap file and the payload in receive packets are same. + +13. Quit and relaunch vhost and rerun step 11-12. + +14. Quit and relaunch virtio with packed ring inorder non-mergeable path as below:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,packed_vq=1,server=1 \ + -- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 + testpmd>set fwd csum + testpmd>start + +15. Rerun step 11-13. + +16. Quit and relaunch virtio with packed ring vectorized path as below:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci --force-max-simd-bitwidth=512 \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,packed_vq=1,vectorized=1,server=1 \ + -- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 + testpmd>set fwd csum + testpmd>start + +17. Rerun step 11-13. + +18. Quit and relaunch virtio with packed ring vectorized path and ring size is not power of 2 as below:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci --force-max-simd-bitwidth=512 \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,packed_vq=1,vectorized=1,queue_size=1025,server=1 \ + -- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1025 --rxd=1025 + testpmd>set fwd csum + testpmd>start + +19. Rerun step 11-13. + +20. Quit and relaunch vhost w/ iova=pa:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 \ + -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 -a 0000:00:04.3 -a 0000:00:04.4 -a 0000:00:04.5 -a 0000:00:04.6 -a 0000:00:04.7 \ + --vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq6;txq7]' \ + --iova=pa -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \ + --lcore-dma=[lcore11@0000:00:04.0,lcore11@0000:00:04.7,lcore12@0000:00:04.1,lcore12@0000:00:04.2,lcore12@0000:00:04.3,lcore13@0000:00:04.2,lcore13@0000:00:04.3,lcore13@0000:00:04.4,lcore14@0000:00:04.2,lcore14@0000:00:04.3,lcore14@0000:00:04.4,lcore14@0000:00:04.5,lcore15@0000:00:04.0,lcore15@0000:00:04.1,lcore15@0000:00:04.2,lcore15@0000:00:04.3,lcore14@0000:00:04.4,lcore14@0000:00:04.5,lcore15@0000:00:04.6,lcore15@0000:00:04.7] + +21. Rerun steps 2-19. + +Test Case 2: loopback split ring all path cbdma test payload check with server mode and multi-queues +---------------------------------------------------------------------------------------------------- +This case uses testpmd to test split ring all path with multi-queues to test payload check with server mode and relaunch vhost. + +1. Bind 3 CBDMA channel to vfio-pci, as common step 1. + +2. Launch vhost by below command:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 \ + --vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6]' \ + --iova=va -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \ + --lcore-dma=[lcore11@0000:00:04.0,lcore12@0000:00:04.0,lcore13@0000:00:04.1,lcore13@0000:00:04.2,lcore14@0000:00:04.1,lcore14@0000:00:04.2,lcore15@0000:00:04.1,lcore15@0000:00:04.2] + +3. Launch virtio-user with split ring mergeable inorder path:: + + dpdk dir># ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \ + -vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=1,server=1 \ + - -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 + testpmd>set fwd csum + testpmd>start + +4. Start pdump to capture virtio-user packets, as common step 2. + +5. Send large pkts from vhost, check loopback performance can get expected and each queue can receive packets:: + + testpmd> set fwd csum + testpmd> set txpkts 64,64,64,2000,2000,2000 + testpmd> set burst 1 + testpmd> start tx_first 1 + testpmd> stop + +6. Quit pdump, check all the packets length are 6192 Byte in the pcap file and the payload in receive packets are same. + +7. Quit and relaunch vhost and rerun step 4-6. + +8. Quit and relaunch virtio with split ring mergeable path as below:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=1,in_order=0,server=1 \ + -- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 + testpmd>set fwd csum + testpmd>start + +9. Rerun steps 4-7. + +10. Quit and relaunch virtio with split ring non-mergeable path as below:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=0,server=1 \ + -- -i --enable-hw-vlan-strip --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 + testpmd>set fwd csum + testpmd>start + +11. Send pkts from vhost, check loopback performance can get expected and each queue can receive packets:: + + testpmd> set fwd csum + testpmd> set txpkts 64,128,256,512 + testpmd> set burst 1 + testpmd> start tx_first 1 + testpmd> stop + +12. Quit pdump, check all the packets length are 960 Byte in the pcap file and the payload in receive packets are same. + +13. Quit and relaunch vhost and rerun step 11-12. + +14. Quit and relaunch virtio with split ring inorder non-mergeable path as below:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=1,server=1 \ + -- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 + testpmd>set fwd csum + testpmd>start + +15. Rerun step 11-13. + +16. Quit and relaunch virtio with split ring vectorized path as below:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=virtio-user0 --no-pci \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=8,mrg_rxbuf=0,in_order=0,vectorized=1,server=1 \ + -- -i --nb-cores=1 --rxq=8 --txq=8 --txd=1024 --rxd=1024 + testpmd>set fwd csum + testpmd>start + +17. Rerun step 11-13. + +18. Quit and relaunch vhost w/ iova=pa:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 10-18 -n 4 -a 0000:00:04.0 -a 0000:00:04.1 -a 0000:00:04.2 \ + --vdev 'eth_vhost0,iface=vhost-net0,queues=8,client=1,dmas=[txq0;txq1;txq2;txq3;txq4;txq5;txq6]' \ + --iova=pa -- -i --nb-cores=5 --rxq=8 --txq=8 --txd=1024 --rxd=1024 \ + --lcore-dma=[lcore11@0000:00:04.0,lcore12@0000:00:04.0,lcore13@0000:00:04.1,lcore13@0000:00:04.2,lcore14@0000:00:04.1,lcore14@0000:00:04.2,lcore15@0000:00:04.1,lcore15@0000:00:04.2] + +19. Rerun steps 2-18. + +Test Case 3: loopback split ring large chain packets stress test with server mode and cbdma enqueue +--------------------------------------------------------------------------------------------------- +This case uses testpmd to test split ring large chain packets stress test with server mode. + +1. Bind 1 CBDMA channel to vfio-pci, as common step 1. + +2. Launch vhost by below command:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-3 -n 4 -a 0000:00:04.0 \ + --vdev 'eth_vhost0,iface=vhost-net0,queues=1,client=1,dmas=[txq0]' --iova=va -- -i --nb-cores=1 --mbuf-size=65535 --lcore-dma=[lcore3@0000:00:04.0] + +3. Launch virtio and start testpmd:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=testpmd0 --no-pci \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=1,server=1,mrg_rxbuf=1,in_order=0,vectorized=1,queue_size=2048 \ + -- -i --rxq=1 --txq=1 --txd=2048 --rxd=2048 --nb-cores=1 + testpmd>start + +4. Send large packets from vhost, check virtio can receive packets:: + + testpmd> set txpkts 65535,65535,65535,65535,65535 + testpmd> start tx_first 32 + testpmd> show port stats all + +5. Stop and quit vhost testpmd and relaunch vhost with iova=pa:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-3 -n 4 -a 0000:00:04.0 \ + --vdev 'eth_vhost0,iface=vhost-net0,queues=1,client=1,dmas=[txq0]' --iova=pa -- -i --nb-cores=1 --mbuf-size=65535 --lcore-dma=[lcore3@0000:00:04.0] + +6. Rerun steps 4. + +Test Case 4: loopback packed ring large chain packets stress test with server mode and cbdma enqueue +---------------------------------------------------------------------------------------------------- +This case uses testpmd to test packed ring large chain packets stress test with server mode. + +1. Bind 1 CBDMA channel to vfio-pci, as common step 1. + +2. Launch vhost by below command:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-3 -n 4 -a 0000:00:04.0 \ + --vdev 'eth_vhost0,iface=vhost-net0,queues=1,dmas=[txq0],client=1' --iova=va -- -i --nb-cores=1 --mbuf-size=65535 --lcore-dma=[lcore3@0000:00:04.0] + +3. Launch virtio and start testpmd:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 30,31 -n 4 --file-prefix=testpmd0 --no-pci \ + --vdev=net_virtio_user0,mac=00:11:22:33:44:10,path=./vhost-net0,queues=1,mrg_rxbuf=1,in_order=0,vectorized=1,packed_vq=1,queue_size=2048,server=1 \ + -- -i --rxq=1 --txq=1 --txd=2048 --rxd=2048 --nb-cores=1 + testpmd>start + +4. Send large packets from vhost, check virtio can receive packets:: + + testpmd> set txpkts 65535,65535,65535,65535,65535 + testpmd> start tx_first 32 + testpmd> show port stats all + +5. Stop and quit vhost testpmd and relaunch vhost with iova=pa:: + + # ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 2-3 -n 4 -a 0000:00:04.0 \ + --vdev 'eth_vhost0,iface=vhost-net0,queues=1,dmas=[txq0],client=1' --iova=pa -- -i --nb-cores=1 --mbuf-size=65535 --lcore-dma=[lcore3@0000:00:04.0] + +6. Rerun steps 4. \ No newline at end of file -- 2.25.1