search for: vdpa

Live migration of vdpa would typically require re-instate vdpa device with an idential set of configs on the destination node, same way as how source node created the device in the first place. In order to allow live migration orchestration software to export the initial set of vdpa attributes with which the device was...

...s since commit ceaa837f96adb69c0df0397937cd74991d5d821a: Linux 6.2-rc8 (2023-02-12 14:10:17 -0800) 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 deeacf35c922da579637f5db625af20baafc66ed: vdpa/mlx5: support device features provisioning (2023-02-20 19:27:00 -0500) Note: dropped a patch close to the bottom of the stack at the last minute so the commits differ but all of these have been in next already. The dropped patch just added a new query ioctl so not interacting with anything else in...

On 2020/4/1 ??3:19, Michael S. Tsirkin wrote: > We have both vhost and virtio drivers that depend on vdpa. > It's easier to locate it at a top level directory otherwise > we run into issues e.g. if vhost is built-in but virtio > is modular. Let's just move it up a level. > > Reported-by: Randy Dunlap <rdunlap at infradead.org> > Signed-off-by: Michael S. Tsirkin <mst...

If user did not configure any vdpa drivers, neither vhost nor virtio vdpa are going to be useful. So there's no point in prompting for these and selecting vdpa core automatically. Simplify configuration by making virtio and vhost vdpa drivers depend on vdpa menu entry. Once done, we no longer need a separate menu entry, so also...

...adba3e2d7d3c25b72a1390b24ebfc58161 # save the attached .config to linux build tree GCC_VERSION=9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp at intel.com> All errors (new ones prefixed by >>): drivers/vdpa/vdpa_sim/vdpa_sim.c: In function 'vdpasim_queue_ready': >> drivers/vdpa/vdpa_sim/vdpa_sim.c:94:8: error: implicit declaration of function 'vringh_init_iotlb'; did you mean 'vringh_init_kern'? [-Werror=implicit-function-declaration] 94 | ret = vringh_init_iotlb(&...

...ple 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...

...ple 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...

...d821a: > > Linux 6.2-rc8 (2023-02-12 14:10:17 -0800) > > 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 deeacf35c922da579637f5db625af20baafc66ed: > > vdpa/mlx5: support device features provisioning (2023-02-20 19:27:00 -0500) > > Note: dropped a patch close to the bottom of the stack at the last > minute so the commits differ but all of these have been in next already. > The dropped patch just added a new query ioctl so not interacting w...

This patch introduces a vDPA transport for virtio. This is used to use kernel virtio driver to drive the vDPA device that is capable of populating virtqueue directly. A new virtio-vdpa driver will be registered to the vDPA bus, when a new virtio-vdpa device is probed, it will register the device with vdpa based config ops. Th...

This patch introduces a vDPA transport for virtio. This is used to use kernel virtio driver to drive the mediated device that is capable of populating virtqueue directly. A new virtio-vdpa driver will be registered to the vDPA bus, when a new virtio-vdpa device is probed, it will register the device with vdpa based config ops...

On Mon, Feb 10, 2020 at 11:56:08AM +0800, Jason Wang wrote: > This patch implements a software vDPA networking device. The datapath > is implemented through vringh and workqueue. The device has an on-chip > IOMMU which translates IOVA to PA. For kernel virtio drivers, vDPA > simulator driver provides dma_ops. For vhost driers, set_map() methods > of vdpa_config_ops is implemented to a...

From: Allen Hubbe <allen.hubbe at amd.com> Consume the parameter to device_features when parsing command line options. Otherwise the parameter may be used again as an option name. # vdpa dev add ... device_features 0xdeadbeef mac 00:11:22:33:44:55 Unknown option "0xdeadbeef" Fixes: a4442ce58ebb ("vdpa: allow provisioning device features") Signed-off-by: Allen Hubbe <allen.hubbe at amd.com> Reviewed-by: Shannon Nelson <shannon.nelson at amd.com> ---...

From: Allen Hubbe <allen.hubbe at amd.com> Consume the parameter to device_features when parsing command line options. Otherwise the parameter may be used again as an option name. # vdpa dev add ... device_features 0xdeadbeef mac 00:11:22:33:44:55 Unknown option "0xdeadbeef" Fixes: a4442ce58ebb ("vdpa: allow provisioning device features") Signed-off-by: Allen Hubbe <allen.hubbe at amd.com> Reviewed-by: Shannon Nelson <shannon.nelson at amd.com> ---...

...PI is used to setup device interrupts. IRQ-bypass can also be supported. Currently, the data path interrupt can be configured via the VFIO_VHOST_VQ_IRQ_INDEX with virtqueue's callfd. Signed-off-by: Tiwei Bie <tiwei.bie at intel.com> --- drivers/vhost/Makefile | 2 + drivers/vhost/vdpa.c | 770 +++++++++++++++++++++++++++++++++++++ include/linux/vdpa_mdev.h | 72 ++++ include/uapi/linux/vfio.h | 19 + include/uapi/linux/vhost.h | 25 ++ 5 files changed, 888 insertions(+) create mode 100644 drivers/vhost/vdpa.c create mode 100644 include/linux/vdpa_mdev.h diff --git...

...PI is used to setup device interrupts. IRQ-bypass can also be supported. Currently, the data path interrupt can be configured via the VFIO_VHOST_VQ_IRQ_INDEX with virtqueue's callfd. Signed-off-by: Tiwei Bie <tiwei.bie at intel.com> --- drivers/vhost/Makefile | 2 + drivers/vhost/vdpa.c | 770 +++++++++++++++++++++++++++++++++++++ include/linux/vdpa_mdev.h | 72 ++++ include/uapi/linux/vfio.h | 19 + include/uapi/linux/vhost.h | 25 ++ 5 files changed, 888 insertions(+) create mode 100644 drivers/vhost/vdpa.c create mode 100644 include/linux/vdpa_mdev.h diff --git...

...will be > able to work with the guest virtio driver in the VM just like > what the software backend does. That is to say, we can implement > a hardware based vhost backend in QEMU, and any virtio ring > compatible devices potentially can be used with this backend. > (We also call it vDPA -- vhost Data Path Acceleration). > > One problem is that, different virtio ring compatible devices > may have different device interfaces. That is to say, we will > need different drivers in QEMU. It could be troublesome. And > that's what this patch trying to fix. The idea behi...

...Then the hardware device will be able to work with the guest virtio driver in the VM just like what the software backend does. That is to say, we can implement a hardware based vhost backend in QEMU, and any virtio ring compatible devices potentially can be used with this backend. (We also call it vDPA -- vhost Data Path Acceleration). One problem is that, different virtio ring compatible devices may have different device interfaces. That is to say, we will need different drivers in QEMU. It could be troublesome. And that's what this patch trying to fix. The idea behind this patch is very si...

...Then the hardware device will be able to work with the guest virtio driver in the VM just like what the software backend does. That is to say, we can implement a hardware based vhost backend in QEMU, and any virtio ring compatible devices potentially can be used with this backend. (We also call it vDPA -- vhost Data Path Acceleration). One problem is that, different virtio ring compatible devices may have different device interfaces. That is to say, we will need different drivers in QEMU. It could be troublesome. And that's what this patch trying to fix. The idea behind this patch is very si...

...SET_MEM_TABLE DMA can be done at the level of parent device which means it can work for e.g the card with on-chip IOMMU. And what's the plan for vIOMMU? > > Signed-off-by: Tiwei Bie <tiwei.bie at intel.com> > --- > drivers/vhost/Makefile | 2 + > drivers/vhost/vdpa.c | 770 +++++++++++++++++++++++++++++++++++++ > include/linux/vdpa_mdev.h | 72 ++++ > include/uapi/linux/vfio.h | 19 + > include/uapi/linux/vhost.h | 25 ++ > 5 files changed, 888 insertions(+) > create mode 100644 drivers/vhost/vdpa.c > create mode 100644 in...

...pages. All callers assign it to a u32 variable anyway, so let's just change the return value type to u32. Cc: "Zhu, Lingshan" <lingshan.zhu at intel.com> Reported-by: Arnd Bergmann <arnd at arndb.de> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/vdpa/ifcvf/ifcvf_main.c | 2 +- drivers/vdpa/vdpa_sim/vdpa_sim.c | 2 +- include/linux/vdpa.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index 28d9e5de5675..abf6a061cab6 100644 --- a/drivers/vdpa/i...