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Date: Tue, 7 Apr 2020 05:50:31 -0400
From: "Michael S. Tsirkin" <mst@...hat.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
alexander.h.duyck@...ux.intel.com, david@...hat.com,
eperezma@...hat.com, jasowang@...hat.com, lingshan.zhu@...el.com,
mhocko@...nel.org, namit@...are.com, rdunlap@...radead.org,
rientjes@...gle.com, tiwei.bie@...el.com, tysand@...gle.com,
wei.w.wang@...el.com, xiao.w.wang@...el.com,
yuri.benditovich@...nix.com
Subject: Re: [GIT PULL] vhost: fixes, vdpa
On Mon, Apr 06, 2020 at 05:11:28PM -0400, Michael S. Tsirkin wrote:
> Now that many more architectures build vhost, a couple of these (um, and
> arm with deprecated oabi) have reported build failures with randconfig,
> however fixes for that need a bit more discussion/testing and will be
> merged separately.
>
> Not a regression - these previously simply didn't have vhost at all.
> Also, there's some DMA API code in the vdpa simulator is hacky - if no
> solution surfaces soon we can always disable it before release:
> it's not a big deal either way as it's just test code.
>
> The following changes since commit 16fbf79b0f83bc752cee8589279f1ebfe57b3b6e:
>
> Linux 5.6-rc7 (2020-03-22 18:31:56 -0700)
>
> are available in the Git repository at:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus
>
> for you to fetch changes up to c9b9f5f8c0f3cdb893cb86c168cdaa3aa5ed7278:
>
> vdpa: move to drivers/vdpa (2020-04-02 10:41:40 -0400)
>
> ----------------------------------------------------------------
> virtio: fixes, vdpa
>
> Some bug fixes.
> Balloon reverted to use the OOM handler again.
> The new vdpa subsystem with two first drivers.
>
> Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
OK this was conflicting with akpm tree, turns out Stephen
was reverting the OOM handler change since akpm tree has its own
variant.
So I pushed the revert in my tree to make it easier for you.
I'll send PULL v2 just to make things clear.
> ----------------------------------------------------------------
> David Hildenbrand (1):
> virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
>
> Jason Wang (7):
> vhost: refine vhost and vringh kconfig
> vhost: allow per device message handler
> vhost: factor out IOTLB
> vringh: IOTLB support
> vDPA: introduce vDPA bus
> virtio: introduce a vDPA based transport
> vdpasim: vDPA device simulator
>
> Michael S. Tsirkin (2):
> tools/virtio: option to build an out of tree module
> vdpa: move to drivers/vdpa
>
> Tiwei Bie (1):
> vhost: introduce vDPA-based backend
>
> Yuri Benditovich (3):
> virtio-net: Introduce extended RSC feature
> virtio-net: Introduce RSS receive steering feature
> virtio-net: Introduce hash report feature
>
> Zhu Lingshan (1):
> virtio: Intel IFC VF driver for VDPA
>
> MAINTAINERS | 3 +
> arch/arm/kvm/Kconfig | 2 -
> arch/arm64/kvm/Kconfig | 2 -
> arch/mips/kvm/Kconfig | 2 -
> arch/powerpc/kvm/Kconfig | 2 -
> arch/s390/kvm/Kconfig | 4 -
> arch/x86/kvm/Kconfig | 4 -
> drivers/Kconfig | 4 +
> drivers/Makefile | 1 +
> drivers/misc/mic/Kconfig | 4 -
> drivers/net/caif/Kconfig | 4 -
> drivers/vdpa/Kconfig | 37 ++
> drivers/vdpa/Makefile | 4 +
> drivers/vdpa/ifcvf/Makefile | 3 +
> drivers/vdpa/ifcvf/ifcvf_base.c | 389 +++++++++++++++++
> drivers/vdpa/ifcvf/ifcvf_base.h | 118 ++++++
> drivers/vdpa/ifcvf/ifcvf_main.c | 435 +++++++++++++++++++
> drivers/vdpa/vdpa.c | 180 ++++++++
> drivers/vdpa/vdpa_sim/Makefile | 2 +
> drivers/vdpa/vdpa_sim/vdpa_sim.c | 629 ++++++++++++++++++++++++++++
> drivers/vhost/Kconfig | 45 +-
> drivers/vhost/Kconfig.vringh | 6 -
> drivers/vhost/Makefile | 6 +
> drivers/vhost/iotlb.c | 177 ++++++++
> drivers/vhost/net.c | 5 +-
> drivers/vhost/scsi.c | 2 +-
> drivers/vhost/vdpa.c | 883 +++++++++++++++++++++++++++++++++++++++
> drivers/vhost/vhost.c | 233 ++++-------
> drivers/vhost/vhost.h | 45 +-
> drivers/vhost/vringh.c | 421 ++++++++++++++++++-
> drivers/vhost/vsock.c | 2 +-
> drivers/virtio/Kconfig | 13 +
> drivers/virtio/Makefile | 1 +
> drivers/virtio/virtio_balloon.c | 107 ++---
> drivers/virtio/virtio_vdpa.c | 396 ++++++++++++++++++
> include/linux/vdpa.h | 253 +++++++++++
> include/linux/vhost_iotlb.h | 47 +++
> include/linux/vringh.h | 36 ++
> include/uapi/linux/vhost.h | 24 ++
> include/uapi/linux/vhost_types.h | 8 +
> include/uapi/linux/virtio_net.h | 102 ++++-
> tools/virtio/Makefile | 27 +-
> 42 files changed, 4354 insertions(+), 314 deletions(-)
> create mode 100644 drivers/vdpa/Kconfig
> create mode 100644 drivers/vdpa/Makefile
> create mode 100644 drivers/vdpa/ifcvf/Makefile
> create mode 100644 drivers/vdpa/ifcvf/ifcvf_base.c
> create mode 100644 drivers/vdpa/ifcvf/ifcvf_base.h
> create mode 100644 drivers/vdpa/ifcvf/ifcvf_main.c
> create mode 100644 drivers/vdpa/vdpa.c
> create mode 100644 drivers/vdpa/vdpa_sim/Makefile
> create mode 100644 drivers/vdpa/vdpa_sim/vdpa_sim.c
> delete mode 100644 drivers/vhost/Kconfig.vringh
> create mode 100644 drivers/vhost/iotlb.c
> create mode 100644 drivers/vhost/vdpa.c
> create mode 100644 drivers/virtio/virtio_vdpa.c
> create mode 100644 include/linux/vdpa.h
> create mode 100644 include/linux/vhost_iotlb.h
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