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Tue, 03 Dec 2024 21:08:14 -0800 (PST) X-Google-Smtp-Source: AGHT+IFj+uUlyY1C0BsWmALoxtojbbY8sLNjryjJ+hUDmswkw3F7P+vqgijj+KJpqRsQ36IWx1WReA== X-Received: by 2002:a05:6a20:3948:b0:1e0:c7cf:bc2d with SMTP id adf61e73a8af0-1e16bdd328amr5699705637.3.1733288894118; Tue, 03 Dec 2024 21:08:14 -0800 (PST) Received: from localhost.localdomain ([240f:74:7be:1:9c88:3d14:cbea:e537]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-7fd0a0682d6sm145466a12.10.2024.12.03.21.08.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Dec 2024 21:08:13 -0800 (PST) From: Koichiro Den To: virtualization@lists.linux.dev Cc: mst@redhat.com, jasowang@redhat.com, xuanzhuo@linux.alibaba.com, eperezma@redhat.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, jiri@resnulli.us, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH net-next v3 5/7] virtio_net: ensure netdev_tx_reset_queue is called on tx ring resize Date: Wed, 4 Dec 2024 14:07:22 +0900 Message-ID: <20241204050724.307544-6-koichiro.den@canonical.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241204050724.307544-1-koichiro.den@canonical.com> References: <20241204050724.307544-1-koichiro.den@canonical.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" virtnet_tx_resize() flushes remaining tx skbs, requiring DQL counters to be reset when flushing has actually occurred. Add virtnet_sq_free_unused_buf_done() as a callback for virtqueue_reset() to handle this. Fixes: c8bd1f7f3e61 ("virtio_net: add support for Byte Queue Limits") Cc: # v6.11+ Signed-off-by: Koichiro Den Acked-by: Jason Wang --- drivers/net/virtio_net.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 2a90655cfa4f..d0cf29fd8255 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -3395,7 +3395,8 @@ static int virtnet_tx_resize(struct virtnet_info *vi,= struct send_queue *sq, =20 virtnet_tx_pause(vi, sq); =20 - err =3D virtqueue_resize(sq->vq, ring_num, virtnet_sq_free_unused_buf, NU= LL); + err =3D virtqueue_resize(sq->vq, ring_num, virtnet_sq_free_unused_buf, + virtnet_sq_free_unused_buf_done); if (err) netdev_err(vi->dev, "resize tx fail: tx queue index: %d err: %d\n", qind= ex, err); =20 --=20 2.43.0