From: "Michael S. Tsirkin" <mst@redhat.com> To: Jason Wang <jasowang@redhat.com> Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, kwankhede@nvidia.com, alex.williamson@redhat.com, tiwei.bie@intel.com, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, cohuck@redhat.com, maxime.coquelin@redhat.com, cunming.liang@intel.com, zhihong.wang@intel.com, rob.miller@broadcom.com, xiao.w.wang@intel.com, haotian.wang@sifive.com, zhenyuw@linux.intel.com, zhi.a.wang@intel.com, jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com, rodrigo.vivi@intel.com, airlied@linux.ie, daniel@ffwll.ch, farman@linux.ibm.com, pasic@linux.ibm.com, sebott@linux.ibm.com, oberpar@linux.ibm.com, heiko.carstens@de.ibm.com, gor@linux.ibm.com, borntraeger@de.ibm.com, akrowiak@linux.ibm.com, freude@linux.ibm.com, lingshan.zhu@intel.com, idos@mellanox.com, eperezma@redhat.com, lulu@redhat.com, parav@mellanox.com Subject: Re: [PATCH 0/6] mdev based hardware virtio offloading support Date: Mon, 23 Sep 2019 09:59:38 -0400 [thread overview] Message-ID: <20190923095820-mutt-send-email-mst@kernel.org> (raw) In-Reply-To: <20190923130331.29324-1-jasowang@redhat.com> On Mon, Sep 23, 2019 at 09:03:25PM +0800, Jason Wang wrote: > Hi all: > > There are hardware that can do virtio datapath offloading while having > its own control path. This path tries to implement a mdev based > unified API to support using kernel virtio driver to drive those > devices. This is done by introducing a new mdev transport for virtio > (virtio_mdev) and register itself as a new kind of mdev driver. Then > it provides a unified way for kernel virtio driver to talk with mdev > device implementation. > > Though the series only contains kernel driver support, the goal is to > make the transport generic enough to support userspace drivers. This > means vhost-mdev[1] could be built on top as well by resuing the > transport. > > A sample driver is also implemented which simulate a virito-net > loopback ethernet device on top of vringh + workqueue. This could be > used as a reference implementation for real hardware driver. > > Consider mdev framework only support VFIO device and driver right now, > this series also extend it to support other types. This is done > through introducing class id to the device and pairing it with > id_talbe claimed by the driver. On top, this seris also decouple > device specific parents ops out of the common ones. > > Pktgen test was done with virito-net + mvnet loop back device. > > Please review. > > [1] https://lkml.org/lkml/2019/9/16/869 > > Changes from RFC-V2: > - silent compile warnings on some specific configuration > - use u16 instead u8 for class id > - reseve MDEV_ID_VHOST for future vhost-mdev work > - introduce "virtio" type for mvnet and make "vhost" type for future > work > - add entries in MAINTAINER > - tweak and typos fixes in commit log > > Changes from RFC-V1: > > - rename device id to class id > - add docs for class id and device specific ops (device_ops) > - split device_ops into seperate headers > - drop the mdev_set_dma_ops() > - use device_ops to implement the transport API, then it's not a part > of UAPI any more > - use GFP_ATOMIC in mvnet sample device and other tweaks > - set_vring_base/get_vring_base support for mvnet device > > Jason Wang (6): > mdev: class id support > mdev: introduce device specific ops > mdev: introduce virtio device and its device ops > virtio: introduce a mdev based transport > vringh: fix copy direction of vringh_iov_push_kern() > docs: sample driver to demonstrate how to implement virtio-mdev > framework That's pretty clean, so how about we start by just merging this? Alex are you going to handle this through your next tree? If yes, pls include: Acked-by: Michael S. Tsirkin <mst@redhat.com> > .../driver-api/vfio-mediated-device.rst | 11 +- > MAINTAINERS | 3 + > drivers/gpu/drm/i915/gvt/kvmgt.c | 17 +- > drivers/s390/cio/vfio_ccw_ops.c | 17 +- > drivers/s390/crypto/vfio_ap_ops.c | 14 +- > drivers/vfio/mdev/Kconfig | 7 + > drivers/vfio/mdev/Makefile | 1 + > drivers/vfio/mdev/mdev_core.c | 21 +- > drivers/vfio/mdev/mdev_driver.c | 14 + > drivers/vfio/mdev/mdev_private.h | 1 + > drivers/vfio/mdev/vfio_mdev.c | 37 +- > drivers/vfio/mdev/virtio_mdev.c | 416 +++++++++++ > drivers/vhost/vringh.c | 8 +- > include/linux/mdev.h | 47 +- > include/linux/mod_devicetable.h | 8 + > include/linux/vfio_mdev.h | 53 ++ > include/linux/virtio_mdev.h | 144 ++++ > samples/Kconfig | 7 + > samples/vfio-mdev/Makefile | 1 + > samples/vfio-mdev/mbochs.c | 19 +- > samples/vfio-mdev/mdpy.c | 19 +- > samples/vfio-mdev/mtty.c | 17 +- > samples/vfio-mdev/mvnet.c | 688 ++++++++++++++++++ > 23 files changed, 1481 insertions(+), 89 deletions(-) > create mode 100644 drivers/vfio/mdev/virtio_mdev.c > create mode 100644 include/linux/vfio_mdev.h > create mode 100644 include/linux/virtio_mdev.h > create mode 100644 samples/vfio-mdev/mvnet.c > > -- > 2.19.1
WARNING: multiple messages have this Message-ID (diff)
From: "Michael S. Tsirkin" <mst@redhat.com> To: Jason Wang <jasowang@redhat.com> Cc: kvm@vger.kernel.org, airlied@linux.ie, heiko.carstens@de.ibm.com, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, kwankhede@nvidia.com, rob.miller@broadcom.com, linux-s390@vger.kernel.org, sebott@linux.ibm.com, lulu@redhat.com, eperezma@redhat.com, pasic@linux.ibm.com, borntraeger@de.ibm.com, haotian.wang@sifive.com, cunming.liang@intel.com, farman@linux.ibm.com, idos@mellanox.com, gor@linux.ibm.com, intel-gfx@lists.freedesktop.org, xiao.w.wang@intel.com, freude@linux.ibm.com, parav@mellanox.com, zhihong.wang@intel.com, intel-gvt-dev@lists.freedesktop.org, akrowiak@linux.ibm.com, oberpar@linux.ibm.com, tiwei.bie@intel.com, netdev@vger.kernel.org, cohuck@redhat.com, linux-kernel@vger.kernel.org, maxime.coquelin@redhat.com, lingshan.zhu@intel.com Subject: Re: [PATCH 0/6] mdev based hardware virtio offloading support Date: Mon, 23 Sep 2019 09:59:38 -0400 [thread overview] Message-ID: <20190923095820-mutt-send-email-mst@kernel.org> (raw) In-Reply-To: <20190923130331.29324-1-jasowang@redhat.com> On Mon, Sep 23, 2019 at 09:03:25PM +0800, Jason Wang wrote: > Hi all: > > There are hardware that can do virtio datapath offloading while having > its own control path. This path tries to implement a mdev based > unified API to support using kernel virtio driver to drive those > devices. This is done by introducing a new mdev transport for virtio > (virtio_mdev) and register itself as a new kind of mdev driver. Then > it provides a unified way for kernel virtio driver to talk with mdev > device implementation. > > Though the series only contains kernel driver support, the goal is to > make the transport generic enough to support userspace drivers. This > means vhost-mdev[1] could be built on top as well by resuing the > transport. > > A sample driver is also implemented which simulate a virito-net > loopback ethernet device on top of vringh + workqueue. This could be > used as a reference implementation for real hardware driver. > > Consider mdev framework only support VFIO device and driver right now, > this series also extend it to support other types. This is done > through introducing class id to the device and pairing it with > id_talbe claimed by the driver. On top, this seris also decouple > device specific parents ops out of the common ones. > > Pktgen test was done with virito-net + mvnet loop back device. > > Please review. > > [1] https://lkml.org/lkml/2019/9/16/869 > > Changes from RFC-V2: > - silent compile warnings on some specific configuration > - use u16 instead u8 for class id > - reseve MDEV_ID_VHOST for future vhost-mdev work > - introduce "virtio" type for mvnet and make "vhost" type for future > work > - add entries in MAINTAINER > - tweak and typos fixes in commit log > > Changes from RFC-V1: > > - rename device id to class id > - add docs for class id and device specific ops (device_ops) > - split device_ops into seperate headers > - drop the mdev_set_dma_ops() > - use device_ops to implement the transport API, then it's not a part > of UAPI any more > - use GFP_ATOMIC in mvnet sample device and other tweaks > - set_vring_base/get_vring_base support for mvnet device > > Jason Wang (6): > mdev: class id support > mdev: introduce device specific ops > mdev: introduce virtio device and its device ops > virtio: introduce a mdev based transport > vringh: fix copy direction of vringh_iov_push_kern() > docs: sample driver to demonstrate how to implement virtio-mdev > framework That's pretty clean, so how about we start by just merging this? Alex are you going to handle this through your next tree? If yes, pls include: Acked-by: Michael S. Tsirkin <mst@redhat.com> > .../driver-api/vfio-mediated-device.rst | 11 +- > MAINTAINERS | 3 + > drivers/gpu/drm/i915/gvt/kvmgt.c | 17 +- > drivers/s390/cio/vfio_ccw_ops.c | 17 +- > drivers/s390/crypto/vfio_ap_ops.c | 14 +- > drivers/vfio/mdev/Kconfig | 7 + > drivers/vfio/mdev/Makefile | 1 + > drivers/vfio/mdev/mdev_core.c | 21 +- > drivers/vfio/mdev/mdev_driver.c | 14 + > drivers/vfio/mdev/mdev_private.h | 1 + > drivers/vfio/mdev/vfio_mdev.c | 37 +- > drivers/vfio/mdev/virtio_mdev.c | 416 +++++++++++ > drivers/vhost/vringh.c | 8 +- > include/linux/mdev.h | 47 +- > include/linux/mod_devicetable.h | 8 + > include/linux/vfio_mdev.h | 53 ++ > include/linux/virtio_mdev.h | 144 ++++ > samples/Kconfig | 7 + > samples/vfio-mdev/Makefile | 1 + > samples/vfio-mdev/mbochs.c | 19 +- > samples/vfio-mdev/mdpy.c | 19 +- > samples/vfio-mdev/mtty.c | 17 +- > samples/vfio-mdev/mvnet.c | 688 ++++++++++++++++++ > 23 files changed, 1481 insertions(+), 89 deletions(-) > create mode 100644 drivers/vfio/mdev/virtio_mdev.c > create mode 100644 include/linux/vfio_mdev.h > create mode 100644 include/linux/virtio_mdev.h > create mode 100644 samples/vfio-mdev/mvnet.c > > -- > 2.19.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2019-09-23 13:59 UTC|newest] Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-09-23 13:03 [PATCH 0/6] mdev based hardware virtio offloading support Jason Wang 2019-09-23 13:03 ` [PATCH 1/6] mdev: class id support Jason Wang 2019-09-23 13:03 ` Jason Wang 2019-09-23 13:03 ` Jason Wang 2019-09-23 16:05 ` Alex Williamson 2019-09-23 16:05 ` Alex Williamson 2019-09-23 16:05 ` Alex Williamson 2019-09-24 10:11 ` Jason Wang 2019-09-24 10:11 ` Jason Wang 2019-09-24 10:11 ` Jason Wang 2019-09-23 20:58 ` Parav Pandit 2019-09-23 20:58 ` Parav Pandit 2019-09-23 20:58 ` Parav Pandit 2019-09-24 11:20 ` Jason Wang 2019-09-24 11:20 ` Jason Wang 2019-09-24 11:20 ` Jason Wang 2019-09-24 11:20 ` Jason Wang 2019-09-23 21:02 ` Parav Pandit 2019-09-23 21:02 ` Parav Pandit 2019-09-23 21:02 ` Parav Pandit 2019-09-24 11:23 ` Jason Wang 2019-09-24 11:23 ` Jason Wang 2019-09-24 11:23 ` Jason Wang 2019-09-24 11:23 ` Jason Wang 2019-09-23 13:03 ` [PATCH 2/6] mdev: introduce device specific ops Jason Wang 2019-09-23 15:20 ` kbuild test robot 2019-09-23 15:20 ` kbuild test robot 2019-09-23 15:20 ` kbuild test robot 2019-09-23 15:36 ` Michael S. Tsirkin 2019-09-23 15:36 ` Michael S. Tsirkin 2019-09-23 15:36 ` Michael S. Tsirkin 2019-09-24 11:23 ` Jason Wang 2019-09-24 11:23 ` Jason Wang 2019-09-24 11:23 ` Jason Wang 2019-09-23 15:20 ` kbuild test robot 2019-09-23 22:59 ` Parav Pandit 2019-09-23 22:59 ` Parav Pandit 2019-09-23 22:59 ` Parav Pandit 2019-09-24 11:26 ` Jason Wang 2019-09-24 11:26 ` Jason Wang 2019-09-24 11:26 ` Jason Wang 2019-09-24 11:26 ` Jason Wang 2019-09-23 13:03 ` Jason Wang 2019-09-23 13:03 ` [PATCH 3/6] mdev: introduce virtio device and its device ops Jason Wang 2019-09-23 13:03 ` Jason Wang 2019-09-23 13:03 ` [PATCH 4/6] virtio: introduce a mdev based transport Jason Wang 2019-09-23 13:03 ` Jason Wang 2019-09-23 22:28 ` Parav Pandit 2019-09-23 22:28 ` Parav Pandit 2019-09-23 22:28 ` Parav Pandit 2019-09-24 11:30 ` Jason Wang 2019-09-24 11:30 ` Jason Wang 2019-09-24 11:30 ` Jason Wang 2019-09-24 11:30 ` Jason Wang 2019-09-23 13:03 ` [PATCH 5/6] vringh: fix copy direction of vringh_iov_push_kern() Jason Wang 2019-09-23 13:03 ` Jason Wang 2019-09-23 15:45 ` Alex Williamson 2019-09-23 15:45 ` Alex Williamson 2019-09-23 15:45 ` Alex Williamson 2019-09-23 16:00 ` Michael S. Tsirkin 2019-09-23 16:00 ` Michael S. Tsirkin 2019-09-23 16:00 ` Michael S. Tsirkin 2019-09-24 14:04 ` Alex Williamson 2019-09-24 14:04 ` Alex Williamson 2019-09-25 11:56 ` Jason Wang 2019-09-25 11:56 ` Jason Wang 2019-09-25 11:56 ` Jason Wang 2019-09-24 14:04 ` Alex Williamson 2019-09-23 13:03 ` [PATCH 6/6] docs: sample driver to demonstrate how to implement virtio-mdev framework Jason Wang 2019-09-23 13:03 ` Jason Wang 2019-09-23 13:59 ` Michael S. Tsirkin [this message] 2019-09-23 13:59 ` [PATCH 0/6] mdev based hardware virtio offloading support Michael S. Tsirkin 2019-09-23 13:59 ` Michael S. Tsirkin 2019-09-23 18:22 ` ✗ Fi.CI.CHECKPATCH: warning for mdev based hardware virtio offloading support (rev2) Patchwork 2019-09-23 18:44 ` ✓ Fi.CI.BAT: success " Patchwork 2019-09-24 6:07 ` ✓ Fi.CI.IGT: " Patchwork -- strict thread matches above, loose matches on Subject: below -- 2019-09-23 13:03 [PATCH 0/6] mdev based hardware virtio offloading support Jason Wang
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