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GSoC project: VIRTIO_F_IN_ORDER support for virtio devices
From: |
Guo Zhi |
Subject: |
GSoC project: VIRTIO_F_IN_ORDER support for virtio devices |
Date: |
Sat, 28 May 2022 09:49:00 +0800 (CST) |
Hi everyone,
I'm Zhi Guo, a student from GSoC 2022.
My project is VIRTIO_F_IN_ORDER support for virtio devices.
VIRTIO_F_IN_ORDER is a new feature presented in VIRTIO 1.1. As mentioned on the
project description
page(https://wiki.qemu.org/Google_Summer_of_Code_2022#VIRTIO_F_IN_ORDER_support_for_virtio_devices),
VIRTIO_F_IN_ORDER is a feature that devices and drivers can negotiate when the
device uses descriptors in the same order in which they were made available by
the driver. This feature can help devices and drivers batch buffers and improve
performance. Currently the devices and drivers available in Linux and QEMU do
not support the VIRTIO_F_IN_ORDER feature. The only implementation is available
in DPDK for the virtio-net driver. I will spend this summer to implement
VIRTIO_F_IN_ORDER feature in both Linux and QEMU, and in both split and packed
virtqueue layouts. Patches will be sent as soon as possible.
Best regards,
Zhi
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