similar to: [RFC PATCH 00/22] Enhance VHOST to enable SoC-to-SoC communication

On Tue, 1 Sep 2020 16:50:03 +0800 Jason Wang <jasowang at redhat.com> wrote: > On 2020/9/1 ??1:24, Kishon Vijay Abraham I wrote: > > Hi, > > > > On 28/08/20 4:04 pm, Cornelia Huck wrote: > >> On Thu, 9 Jul 2020 14:26:53 +0800 > >> Jason Wang <jasowang at redhat.com> wrote: > >> > >> [Let me note right at the beginning that I

On 2020/7/6 ??5:32, Kishon Vijay Abraham I wrote: > Hi Jason, > > On 7/3/2020 12:46 PM, Jason Wang wrote: >> On 2020/7/2 ??9:35, Kishon Vijay Abraham I wrote: >>> Hi Jason, >>> >>> On 7/2/2020 3:40 PM, Jason Wang wrote: >>>> On 2020/7/2 ??5:51, Michael S. Tsirkin wrote: >>>>> On Thu, Jul 02, 2020 at 01:51:21PM +0530, Kishon Vijay

On 2020/7/7 ??10:45, Kishon Vijay Abraham I wrote: > Hi Jason, > > On 7/7/2020 3:17 PM, Jason Wang wrote: >> On 2020/7/6 ??5:32, Kishon Vijay Abraham I wrote: >>> Hi Jason, >>> >>> On 7/3/2020 12:46 PM, Jason Wang wrote: >>>> On 2020/7/2 ??9:35, Kishon Vijay Abraham I wrote: >>>>> Hi Jason, >>>>>

On 2020/7/2 ??9:35, Kishon Vijay Abraham I wrote: > Hi Jason, > > On 7/2/2020 3:40 PM, Jason Wang wrote: >> On 2020/7/2 ??5:51, Michael S. Tsirkin wrote: >>> On Thu, Jul 02, 2020 at 01:51:21PM +0530, Kishon Vijay Abraham I wrote: >>>> This series enhances Linux Vhost support to enable SoC-to-SoC >>>> communication over MMIO. This series enables rpmsg

On 2020/7/8 ??9:13, Kishon Vijay Abraham I wrote: > Hi Jason, > > On 7/8/2020 4:52 PM, Jason Wang wrote: >> On 2020/7/7 ??10:45, Kishon Vijay Abraham I wrote: >>> Hi Jason, >>> >>> On 7/7/2020 3:17 PM, Jason Wang wrote: >>>> On 2020/7/6 ??5:32, Kishon Vijay Abraham I wrote: >>>>> Hi Jason, >>>>>

PCIe endpoint framework provides APIs to implement PCIe endpoint function. This framework allows defining various PCIe endpoint function behaviors in software. This patch extend the framework for virtio pci device. The virtio is defined to communicate guest on virtual machine and host side. Advantage of the virtio is the efficiency of data transfer and the conciseness of implementation device

On 2020/9/1 ??1:24, Kishon Vijay Abraham I wrote: > Hi, > > On 28/08/20 4:04 pm, Cornelia Huck wrote: >> On Thu, 9 Jul 2020 14:26:53 +0800 >> Jason Wang <jasowang at redhat.com> wrote: >> >> [Let me note right at the beginning that I first noted this while >> listening to Kishon's talk at LPC on Wednesday. I might be very >> confused about the

Hi all: This is an updated version of kernel support for vDPA device. Various changes were made based on the feedback since last verion. One major change is to drop the sysfs API and leave the management interface for future development, and introudce the incremental DMA bus operations. Please see changelog for more information. The work on vhost, IFCVF (intel VF driver for vDPA) and qemu is

Hi all: This is an update version of vDPA support in kernel. vDPA device is a device that uses a datapath which complies with the virtio specifications with vendor specific control path. vDPA devices can be both physically located on the hardware or emulated by software. vDPA hardware devices are usually implemented through PCIE with the following types: - PF (Physical Function) - A single

Hi all: This is an update version of vDPA support in kernel. vDPA device is a device that uses a datapath which complies with the virtio specifications with vendor specific control path. vDPA devices can be both physically located on the hardware or emulated by software. vDPA hardware devices are usually implemented through PCIE with the following types: - PF (Physical Function) - A single

This series adds support for the use of user virtual addresses in the vDPA simulator devices. The main reason for this change is to lift the pinning of all guest memory. Especially with virtio devices implemented in software. The next step would be to generalize the code in vdpa-sim to allow the implementation of in-kernel software devices. Similar to vhost, but using vDPA so we can reuse the

v2: - rebased on Linus' tree, commit ae3419fbac84 ("vc_screen: don't clobber return value in vcs_read") - removed `struct task_struct *owner` param (unused for now, maybe ?useful to support cgroups) [Jason] - add unbind_mm callback [Jason] - call the new unbind_mm callback during the release [Jason] - avoid to call bind_mm callback after the reset, since the device ?is not

This series adds support for the use of user virtual addresses in the vDPA simulator devices. The main reason for this change is to lift the pinning of all guest memory. Especially with virtio devices implemented in software. The next step would be to generalize the code in vdpa-sim to allow the implementation of in-kernel software devices. Similar to vhost, but using vDPA so we can reuse the

On 2020/9/15 ??11:47, Kishon Vijay Abraham I wrote: > Hi Jason, > > On 15/09/20 1:48 pm, Jason Wang wrote: >> Hi Kishon: >> >> On 2020/9/14 ??3:23, Kishon Vijay Abraham I wrote: >>>> Then you need something that is functional equivalent to virtio PCI >>>> which is actually the concept of vDPA (e.g vDPA provides alternatives if >>>> the

Hi Kishon: On 2020/9/14 ??3:23, Kishon Vijay Abraham I wrote: >> Then you need something that is functional equivalent to virtio PCI >> which is actually the concept of vDPA (e.g vDPA provides alternatives if >> the queue_sel is hard in the EP implementation). > Okay, I just tried to compare the 'struct vdpa_config_ops' and 'struct > vhost_config_ops' (

Let's move work management inside the vdpa_sim core. This way we can easily change how we manage the works, without having to change the devices each time. Acked-by: Eugenio P??rez Martin <eperezma at redhat.com> Acked-by: Jason Wang <jasowang at redhat.com> Signed-off-by: Stefano Garzarella <sgarzare at redhat.com> --- drivers/vdpa/vdpa_sim/vdpa_sim.h | 3 ++-

Simple typos, don't repost until there's more substantive feedback. On Thu, Apr 27, 2023 at 07:44:26PM +0900, Shunsuke Mie wrote: > The Linux PCIe Endpoint framework supports to implement PCIe endpoint > functions using a PCIe controller operating in endpoint mode. > It is possble to realize the behavior of PCIe device, such as virtio PCI > device. This patch introduces a

On 2020/8/4 ??5:00, Michael S. Tsirkin wrote: > VDPA sim accesses config space as native endian - this is > wrong since it's a modern device and actually uses LE. > > It only supports modern guests so we could punt and > just force LE, but let's use the full virtio APIs since people > tend to copy/paste code, and this is not data path anyway. > > Signed-off-by:

On 2020/8/4 ??5:00, Michael S. Tsirkin wrote: > VDPA sim accesses config space as native endian - this is > wrong since it's a modern device and actually uses LE. > > It only supports modern guests so we could punt and > just force LE, but let's use the full virtio APIs since people > tend to copy/paste code, and this is not data path anyway. > > Signed-off-by:

On Thu, Feb 13, 2020 at 10:56:00AM -0500, Michael S. Tsirkin wrote: > On Thu, Feb 13, 2020 at 11:51:54AM -0400, Jason Gunthorpe wrote: > > > That bus is exactly what Greg KH proposed. There are other ways > > > to solve this I guess but this bikeshedding is getting tiring. > > > > This discussion was for a different goal, IMHO. > > Hmm couldn't find it