linux-kernel - [PATCH 0/2] virtio_net: add page

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Message-ID: <20260106221924.123856-1-vishs@meta.com>
Date: Tue, 6 Jan 2026 14:19:22 -0800
From: Vishwanath Seshagiri <vishs@...a.com>
To: "Michael S . Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>
CC: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
        Eugenio Pérez
	<eperezma@...hat.com>,
        Andrew Lunn <andrew+netdev@...n.ch>,
        "David S .
 Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub
 Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, David Wei
	<dw@...idwei.uk>,
        <netdev@...r.kernel.org>, <virtualization@...ts.linux.dev>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 0/2] virtio_net: add page_pool support

Introduce page_pool support in virtio_net driver in order to recycle
pages in RX buffer allocation and avoid reallocating through the page
allocator. This applies to mergeable and small buffer modes.

The patch has been tested using the included selftests and additional
edge case scripts covering device unbind/bind cycles, rapid interface
open/close, traffic during close, ethtool stress with feature toggling,
close with pending refill work, and data integrity verification.

Vishwanath Seshagiri (2):
  virtio_net: add page pool support for buffer allocation
  selftests: virtio_net: add buffer circulation test

 drivers/net/virtio_net.c                      | 246 +++++++++++++++---
 .../drivers/net/virtio_net/basic_features.sh  |  70 +++++
 2 files changed, 275 insertions(+), 41 deletions(-)

-- 
2.47.3