From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jianfeng Tan Subject: [PATCH v2 0/5] add LSC and Rxq interrupt for virtio-user Date: Tue, 28 Mar 2017 08:21:51 +0000 Message-ID: <1490689316-131625-1-git-send-email-jianfeng.tan@intel.com> References: <1488563803-87754-1-git-send-email-jianfeng.tan@intel.com> Cc: yuanhan.liu@linux.intel.com, david.marchand@6wind.com, maxime.coquelin@redhat.com, Jianfeng Tan To: dev@dpdk.org Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id E22C06A71 for ; Tue, 28 Mar 2017 10:21:12 +0200 (CEST) In-Reply-To: <1488563803-87754-1-git-send-email-jianfeng.tan@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" v2: - Drop the support of LSC for virtio-user + vhost-kernel as the backend. - Rearrange the sequence of intr config and DRIVER_OK. - Address comments from yuanhan. - Update doc. This is an attempt to add LSC and Rxq interrupt for a virtual device, virtio-user (with the backend of both vhost-user and vhost-kernel). We need to support: Case 1. Rxq interrupt for virtio-user + vhost-user as the backend. Case 2. LSC interrupt for virtio-user + vhost-user as the backend. Case 3. Rxq interrupt for virtio-user + vhost-kernel as the backend. Another case is not supported now as we did not find a way to monitor tap device up/down events: - LSC interrupt for virtio-user + vhost-kernel as the backend. HOW TO TEST: Step 1: start testpmd with a virtual vhost device: $ testpmd -c 0x3 -n 4 --socket-mem 1024 --no-pci \ --vdev 'eth_vhost0,iface=/tmp/sock0' -- -i Step 2: start l3fwd-power with a virtio-user device: $ l3fwd-power -c 0xc -n 4 --socket-mem 1024 --no-pci \ --file-prefix=l3fwd-pwd \ --vdev=virtio_user0,path=/tmp/sock0 \ -- -p 1 -P --config="(0,0,1)" \ --no-numa --parse-ptype Step 3: start burst in testpmd (testpmd)> start tx_first Packets will be received and forwarded back by l3fwd-power. And l3fwd-power will keep in polling mode. Step 4: stop burst in testpmd (testpmd)> stop l3fwd-power will change to interrupt mode with few CPU consumption. Step 5: kill testpmd $ kill -p `pidof testpmd` The link status will be changed to down in l3fwd-power. Signed-off-by: Jianfeng Tan Jianfeng Tan (5): eal/linux: add interrupt type for vdev net/virtio: add interrupt configure for vdev net/virtio-user: add rxq interrupt mode support net/virtio-user: support to report net status net/virtio-user: add lsc support doc/guides/rel_notes/release_17_05.rst | 12 ++++ drivers/net/virtio/virtio_ethdev.c | 59 +++++++++++++++--- drivers/net/virtio/virtio_ethdev.h | 2 + drivers/net/virtio/virtio_user/virtio_user_dev.c | 28 ++++++++- drivers/net/virtio/virtio_user/virtio_user_dev.h | 2 +- drivers/net/virtio/virtio_user_ethdev.c | 70 +++++++++++++++++++--- lib/librte_eal/linuxapp/eal/eal_interrupts.c | 30 +++++++++- .../linuxapp/eal/include/exec-env/rte_interrupts.h | 5 +- 8 files changed, 186 insertions(+), 22 deletions(-) -- 2.7.4