[dpdk-dev] [PATCH 0/8] Introduce emudev library and iavf emudev driver

[David Marchand]

On Fri, Dec 18, 2020 at 9:02 AM Chenbo Xia <chenbo.xia at intel.com> wrote:
>
> This series introduces a new device abstraction called emudev for emulated
> devices. A new library (librte_emudev) is implemented. The first emudev
> driver is also introduced, which emulates Intel Adaptive Virtual Function
> (iavf) as a software network device.
>
> This series has a dependency on librte_vfio_user patch series:
> http://patchwork.dpdk.org/cover/85389/
>
> Background & Motivation
> -----------------------
> The disaggregated/multi-process QEMU is using VFIO-over-socket/vfio-user
> as the main transport mechanism to disaggregate IO services from QEMU.
> Therefore, librte_vfio_user is introduced in DPDK to accommodate
> emulated devices for high performance I/O. Although vfio-user library
> provides possibility of emulating devices in DPDK, DPDK does not have
> a device abstraction for emulated devices. A good device abstraction will
> be useful for applications or high performance data path driver. With
> this consideration, emudev library is designed and implemented. It also
> make it possbile to keep modular design on emulated devices by implementing
> data path related logic in a standalone driver (e.g., an ethdev driver)
> and keeps the unrelated logic in the emudev driver.

Since you mention performance, how does it compare to vhost-user/virtio?


-- 
David Marchand