From: "Tian, Kevin" <kevin.tian@intel.com> To: Jason Wang <jasowang@redhat.com>, "mst@redhat.com" <mst@redhat.com>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "kvm@vger.kernel.org" <kvm@vger.kernel.org>, "virtualization@lists.linux-foundation.org" <virtualization@lists.linux-foundation.org>, "netdev@vger.kernel.org" <netdev@vger.kernel.org> Cc: "Bie, Tiwei" <tiwei.bie@intel.com>, "jgg@mellanox.com" <jgg@mellanox.com>, "maxime.coquelin@redhat.com" <maxime.coquelin@redhat.com>, "Liang, Cunming" <cunming.liang@intel.com>, "Wang, Zhihong" <zhihong.wang@intel.com>, "rob.miller@broadcom.com" <rob.miller@broadcom.com>, "Wang, Xiao W" <xiao.w.wang@intel.com>, "haotian.wang@sifive.com" <haotian.wang@sifive.com>, "Zhu, Lingshan" <lingshan.zhu@intel.com>, "eperezma@redhat.com" <eperezma@redhat.com>, "lulu@redhat.com" <lulu@redhat.com>, "parav@mellanox.com" <parav@mellanox.com>, "stefanha@redhat.com" <stefanha@redhat.com>, "rdunlap@infradead.org" <rdunlap@infradead.org>, "hch@infradead.org" <hch@infradead.org>, "aadam@redhat.com" <aadam@redhat.com>, "jakub.kicinski@netronome.com" <jakub.kicinski@netronome.com>, "jiri@mellanox.com" <jiri@mellanox.com>, "shahafs@mellanox.com" <shahafs@mellanox.com>, "hanand@xilinx.com" <hanand@xilinx.com>, "mhabets@solarflare.com" <mhabets@solarflare.com> Subject: RE: [PATCH 0/5] vDPA support Date: Tue, 21 Jan 2020 08:44:39 +0000 Message-ID: <AADFC41AFE54684AB9EE6CBC0274A5D19D73EC6B@SHSMSX104.ccr.corp.intel.com> (raw) In-Reply-To: <20200116124231.20253-1-jasowang@redhat.com> > From: Jason Wang > Sent: Thursday, January 16, 2020 8:42 PM > > Hi all: > > Based on the comments and discussion for mdev based hardware virtio > offloading support[1]. A different approach to support vDPA device is > proposed in this series. Can you point to the actual link which triggered the direction change? A quick glimpse in that thread doesn't reveal such information... > > Instead of leveraging VFIO/mdev which may not work for some > vendors. This series tries to introduce a dedicated vDPA bus and > leverage vhost for userspace drivers. This help for the devices that > are not fit for VFIO and may reduce the conflict when try to propose a > bus template for virtual devices in [1]. > > The vDPA support is split into following parts: > > 1) vDPA core (bus, device and driver abstraction) > 2) virtio vDPA transport for kernel virtio driver to control vDPA > device > 3) vhost vDPA bus driver for userspace vhost driver to control vDPA > device > 4) vendor vDPA drivers > 5) management API > > Both 1) and 2) are included in this series. Tiwei will work on part > 3). For 4), Ling Shan will work and post IFCVF driver. For 5) we leave > it to vendor to implement, but it's better to come into an agreement > for management to create/configure/destroy vDPA device. > > The sample driver is kept but renamed to vdap_sim. An on-chip IOMMU > implementation is added to sample device to make it work for both > kernel virtio driver and userspace vhost driver. It implements a sysfs > based management API, but it can switch to any other (e.g devlink) if > necessary. > > Please refer each patch for more information. > > Comments are welcomed. > > [1] https://lkml.org/lkml/2019/11/18/261 > > Jason Wang (5): > vhost: factor out IOTLB > vringh: IOTLB support > vDPA: introduce vDPA bus > virtio: introduce a vDPA based transport > vdpasim: vDPA device simulator > > MAINTAINERS | 2 + > drivers/vhost/Kconfig | 7 + > drivers/vhost/Kconfig.vringh | 1 + > drivers/vhost/Makefile | 2 + > drivers/vhost/net.c | 2 +- > drivers/vhost/vhost.c | 221 +++------ > drivers/vhost/vhost.h | 36 +- > drivers/vhost/vhost_iotlb.c | 171 +++++++ > drivers/vhost/vringh.c | 434 +++++++++++++++++- > drivers/virtio/Kconfig | 15 + > drivers/virtio/Makefile | 2 + > drivers/virtio/vdpa/Kconfig | 26 ++ > drivers/virtio/vdpa/Makefile | 3 + > drivers/virtio/vdpa/vdpa.c | 141 ++++++ > drivers/virtio/vdpa/vdpa_sim.c | 796 > +++++++++++++++++++++++++++++++++ > drivers/virtio/virtio_vdpa.c | 400 +++++++++++++++++ > include/linux/vdpa.h | 191 ++++++++ > include/linux/vhost_iotlb.h | 45 ++ > include/linux/vringh.h | 36 ++ > 19 files changed, 2327 insertions(+), 204 deletions(-) > create mode 100644 drivers/vhost/vhost_iotlb.c > create mode 100644 drivers/virtio/vdpa/Kconfig > create mode 100644 drivers/virtio/vdpa/Makefile > create mode 100644 drivers/virtio/vdpa/vdpa.c > create mode 100644 drivers/virtio/vdpa/vdpa_sim.c > create mode 100644 drivers/virtio/virtio_vdpa.c > create mode 100644 include/linux/vdpa.h > create mode 100644 include/linux/vhost_iotlb.h > > -- > 2.19.1
next prev parent reply index Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-01-16 12:42 Jason Wang 2020-01-16 12:42 ` [PATCH 1/5] vhost: factor out IOTLB Jason Wang 2020-01-17 4:14 ` Randy Dunlap 2020-01-17 9:34 ` Jason Wang 2020-01-18 0:01 ` kbuild test robot 2020-01-18 0:40 ` kbuild test robot 2020-01-16 12:42 ` [PATCH 2/5] vringh: IOTLB support Jason Wang 2020-01-17 21:54 ` kbuild test robot 2020-01-17 22:33 ` kbuild test robot 2020-01-16 12:42 ` [PATCH 3/5] vDPA: introduce vDPA bus Jason Wang 2020-01-16 15:22 ` Jason Gunthorpe 2020-01-17 3:03 ` Jason Wang 2020-01-17 13:54 ` Jason Gunthorpe 2020-01-20 7:50 ` Jason Wang 2020-01-20 12:17 ` Michael S. Tsirkin 2020-01-20 17:50 ` Jason Gunthorpe 2020-01-20 21:56 ` Michael S. Tsirkin 2020-01-21 14:12 ` Jason Gunthorpe 2020-01-21 14:15 ` Michael S. Tsirkin 2020-01-21 14:16 ` Jason Gunthorpe 2020-01-21 8:40 ` Tian, Kevin 2020-01-21 9:41 ` Jason Wang 2020-01-17 4:16 ` Randy Dunlap 2020-01-17 9:34 ` Jason Wang 2020-01-17 12:13 ` Michael S. Tsirkin 2020-01-17 13:52 ` Jason Wang [not found] ` <CAJPjb1+fG9L3=iKbV4Vn13VwaeDZZdcfBPvarogF_Nzhk+FnKg@mail.gmail.com> 2020-01-19 9:07 ` Shahaf Shuler 2020-01-19 9:59 ` Michael S. Tsirkin 2020-01-20 8:44 ` Jason Wang 2020-01-20 12:09 ` Michael S. Tsirkin 2020-01-21 3:32 ` Jason Wang 2020-01-20 8:43 ` Jason Wang 2020-01-20 17:49 ` Jason Gunthorpe 2020-01-20 20:51 ` Shahaf Shuler 2020-01-20 21:25 ` Michael S. Tsirkin 2020-01-20 21:47 ` Shahaf Shuler 2020-01-20 21:59 ` Michael S. Tsirkin 2020-01-21 6:01 ` Shahaf Shuler 2020-01-21 7:57 ` Jason Wang 2020-01-21 14:07 ` Jason Gunthorpe 2020-01-21 14:16 ` Michael S. Tsirkin 2020-01-20 21:48 ` Michael S. Tsirkin 2020-01-21 4:00 ` Jason Wang 2020-01-21 5:47 ` Michael S. Tsirkin 2020-01-21 8:00 ` Jason Wang 2020-01-21 8:15 ` Michael S. Tsirkin 2020-01-21 8:35 ` Jason Wang 2020-01-21 11:09 ` Shahaf Shuler 2020-01-22 6:36 ` Jason Wang 2020-01-21 14:05 ` Jason Gunthorpe 2020-01-21 14:17 ` Michael S. Tsirkin 2020-01-22 6:18 ` Jason Wang 2020-01-20 8:19 ` Jason Wang 2020-01-16 12:42 ` [PATCH 4/5] virtio: introduce a vDPA based transport Jason Wang 2020-01-16 15:38 ` Jason Gunthorpe 2020-01-17 9:32 ` Jason Wang 2020-01-17 14:00 ` Jason Gunthorpe 2020-01-20 7:52 ` Jason Wang 2020-01-17 4:10 ` Randy Dunlap 2020-01-16 12:42 ` [PATCH 5/5] vdpasim: vDPA device simulator Jason Wang 2020-01-16 15:47 ` Jason Gunthorpe 2020-01-17 9:32 ` Jason Wang 2020-01-17 14:10 ` Jason Gunthorpe 2020-01-20 8:01 ` Jason Wang 2020-02-04 4:19 ` Jason Wang 2020-01-17 4:12 ` Randy Dunlap 2020-01-17 9:35 ` Jason Wang 2020-01-18 18:18 ` kbuild test robot 2020-01-28 3:32 ` Dan Carpenter 2020-02-04 4:07 ` Jason Wang 2020-02-04 8:21 ` Zhu Lingshan 2020-02-04 8:28 ` Jason Wang 2020-02-04 12:52 ` Jason Gunthorpe 2020-02-05 3:14 ` Jason Wang 2020-01-21 8:44 ` Tian, Kevin [this message] 2020-01-21 9:39 ` [PATCH 0/5] vDPA support Jason Wang
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=AADFC41AFE54684AB9EE6CBC0274A5D19D73EC6B@SHSMSX104.ccr.corp.intel.com \ --to=kevin.tian@intel.com \ --cc=aadam@redhat.com \ --cc=cunming.liang@intel.com \ --cc=eperezma@redhat.com \ --cc=hanand@xilinx.com \ --cc=haotian.wang@sifive.com \ --cc=hch@infradead.org \ --cc=jakub.kicinski@netronome.com \ --cc=jasowang@redhat.com \ --cc=jgg@mellanox.com \ --cc=jiri@mellanox.com \ --cc=kvm@vger.kernel.org \ --cc=lingshan.zhu@intel.com \ --cc=linux-kernel@vger.kernel.org \ --cc=lulu@redhat.com \ --cc=maxime.coquelin@redhat.com \ --cc=mhabets@solarflare.com \ --cc=mst@redhat.com \ --cc=netdev@vger.kernel.org \ --cc=parav@mellanox.com \ --cc=rdunlap@infradead.org \ --cc=rob.miller@broadcom.com \ --cc=shahafs@mellanox.com \ --cc=stefanha@redhat.com \ --cc=tiwei.bie@intel.com \ --cc=virtualization@lists.linux-foundation.org \ --cc=xiao.w.wang@intel.com \ --cc=zhihong.wang@intel.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
KVM Archive on lore.kernel.org Archives are clonable: git clone --mirror https://lore.kernel.org/kvm/0 kvm/git/0.git # If you have public-inbox 1.1+ installed, you may # initialize and index your mirror using the following commands: public-inbox-init -V2 kvm kvm/ https://lore.kernel.org/kvm \ kvm@vger.kernel.org public-inbox-index kvm Example config snippet for mirrors Newsgroup available over NNTP: nntp://nntp.lore.kernel.org/org.kernel.vger.kvm AGPL code for this site: git clone https://public-inbox.org/public-inbox.git