From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id DFA6758F4 for ; Mon, 9 Feb 2015 02:14:23 +0100 (CET) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP; 08 Feb 2015 17:14:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.09,540,1418112000"; d="scan'208";a="682850946" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by orsmga002.jf.intel.com with ESMTP; 08 Feb 2015 17:14:22 -0800 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id t191EIB4017400; Mon, 9 Feb 2015 09:14:18 +0800 Received: from shecgisg004.sh.intel.com (localhost [127.0.0.1]) by shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id t191EGBk011363; Mon, 9 Feb 2015 09:14:18 +0800 Received: (from couyang@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t191EFJX011359; Mon, 9 Feb 2015 09:14:15 +0800 From: Ouyang Changchun To: dev@dpdk.org Date: Mon, 9 Feb 2015 09:13:49 +0800 Message-Id: <1423444455-11330-1-git-send-email-changchun.ouyang@intel.com> X-Mailer: git-send-email 1.7.12.2 In-Reply-To: <1422516249-14596-1-git-send-email-changchun.ouyang@intel.com> References: <1422516249-14596-1-git-send-email-changchun.ouyang@intel.com> Subject: [dpdk-dev] [PATCH v4 00/26] Single virtio implementation 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: Mon, 09 Feb 2015 01:14:24 -0000 This is the patch set for single virtio implementation. Why we need single virtio? ============================ As we know currently there are at least 3 virtio PMD driver implementations: A) lib/librte_pmd_virtio(refer as virtio A); B) virtio_net_pmd by 6wind(refer as virtio B); C) virtio by Brocade/vyatta(refer as virtio C); Integrating 3 implementations into one could reduce the maintaining cost and time, in other hand, user don't need practice their application on 3 variant one by one to see which one is the best for them; What's the status? ==================== Currently virtio A has covered most features of virtio B except for using port io to get pci resource, so there is a patch(17/22) to resolve it. But on the other hand there are a few differences between virtio A and virtio C, it needs integrate features/codes of virtio C into virtio A. This patch set bases on two original RFC patch sets from Stephen Hemminger[stephen@networkplumber.org] Refer to [http://dpdk.org/ml/archives/dev/2014-August/004845.html ] for the original one. This patch set also resolves some conflict with latest codes, removed duplicated codes, fix some issues in original codes. What this patch set contains: =============================== 1) virtio: Rearrange resource initialization, it extracts a function to setup PCI resources; 2) virtio: Use weaker barriers, as DPDK driver only has to deal with the case of running on PCI and with SMP, In this case, the code can use the weaker barriers instead of using hard (fence) barriers. This may help performance a bit; 3) virtio: Allow starting with link down, other driver has similar behavior; 4) virtio: Add support for Link State interrupt; 5) ether: Add soft vlan encap/decap functions, it helps if HW don't support vlan strip; 6) virtio: Use software vlan stripping; 7) virtio: Remove unnecessary adapter structure; 8) virtio: Remove redundant vq_alignment, as vq alignment is always 4K, so use constant when needed; 9) virtio: Fix how states are handled during initialization, this is to match Linux kernel; 10) virtio: Make vtpci_get_status a local function as it is used in one file; 11) virtio: Check for packet headroom at compile time; 12) virtio: Move allocation before initialization to avoid being stuck in middle of virtio init; 13) virtio: Add support for vlan filtering; 14) virtio: Add support for multiple mac addresses; 15) virtio: Add ability to set MAC address; 16) virtio: Free mbuf's with threshold, this makes its behavior more like ixgbe; 17) virtio: Use port IO to get PCI resource for security reasons and match virtio-net-pmd; 18) virtio: Fix descriptor index issue; 19) ether: Fix vlan strip/insert issue; 20) example/vhost: Avoid inserting vlan twice and guest and host; 21) example/vhost: Add vlan-strip cmd line option to turn on/off vlan strip on host; 22) virtio: Use soft vlan strip in mergeable Rx path, this makes it has consistent logic with the normal Rx path. Changes in v2: 23) virtio: Fix zero copy break issue, the vring should be ready before virtio PMD set the status of DRIVER_OK; 24) virtio: Remove unnecessary hotspots in data path. Changes in v3: 25) virtio: Fix wmb issue; 26) Fix one minor issue in patch 20, also fix its idention. Changes in v4: 27) Fix updating vring descriptor index issue and memory barrier issue; 28) Reslove comments for patch 17. Changchun Ouyang (10): virtio: Use port IO to get PCI resource. virtio: Fix descriptor index issue ether: Fix vlan strip/insert issue example/vhost: Avoid inserting vlan twice example/vhost: Add vlan-strip cmd line option virtio: Use soft vlan strip in mergeable Rx path virtio: Fix zero copy break issue virtio: Remove hotspots virtio: Fix wmb issue virtio: Fix updating vring descriptor index issue Stephen Hemminger (16): virtio: Rearrange resource initialization virtio: Use weaker barriers virtio: Allow starting with link down virtio: Add support for Link State interrupt ether: Add soft vlan encap/decap functions virtio: Use software vlan stripping virtio: Remove unnecessary adapter structure virtio: Remove redundant vq_alignment virtio: Fix how states are handled during initialization virtio: Make vtpci_get_status local virtio: Check for packet headroom at compile time virtio: Move allocation before initialization virtio: Add support for vlan filtering virtio: Add suport for multiple mac addresses virtio: Add ability to set MAC address virtio: Free mbuf's with threshold examples/vhost/main.c | 70 +++-- lib/librte_ether/rte_ethdev.h | 8 + lib/librte_ether/rte_ether.h | 76 +++++ lib/librte_pmd_virtio/Makefile | 2 + lib/librte_pmd_virtio/virtio_ethdev.c | 519 ++++++++++++++++++++++++++-------- lib/librte_pmd_virtio/virtio_ethdev.h | 12 +- lib/librte_pmd_virtio/virtio_pci.c | 20 +- lib/librte_pmd_virtio/virtio_pci.h | 8 +- lib/librte_pmd_virtio/virtio_rxtx.c | 154 +++++++--- lib/librte_pmd_virtio/virtqueue.h | 59 +++- 10 files changed, 729 insertions(+), 199 deletions(-) -- 1.8.4.2