patches for DPDK stable branches
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From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: Xuan Ding <xuan.ding@intel.com>,
	tiwei.bie@intel.com, zhihong.wang@intel.com, yong.liu@intel.com,
	xiaolong.ye@intel.com
Cc: dev@dpdk.org, stable@dpdk.org
Subject: Re: [dpdk-stable] [PATCH v5] net/virtio-user: fix packed ring server mode
Date: Wed, 15 Jan 2020 12:16:47 +0100
Message-ID: <2bbfce86-c26a-a93d-3ac4-fb8b18572f8f@redhat.com> (raw)
In-Reply-To: <20200115061358.5666-1-xuan.ding@intel.com>



On 1/15/20 7:13 AM, Xuan Ding wrote:
> This patch fixes the situation where data path does not work properly when
> vhost reconnects to virtio in server mode with packed ring.
> 
> Currently, virtio and vhost share memory of vring. For split ring, vhost
> can read the status of descriptors directly from the available ring and
> the used ring during reconnection. Therefore, the data path can continue.
> 
> But for packed ring, when reconnecting to virtio, vhost cannot get the
> status of descriptors via the descriptor ring. By resetting Tx
> and Rx queues, the data path can restart from the beginning.
> 
> Fixes: 4c3f5822eb214 ("net/virtio: add packed virtqueue defines")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Xuan Ding <xuan.ding@intel.com>
> ---
> 
> v5:
> * Fixed two spelling mistakes in the commit log.
> * Added notice message when resetting vring.
> 
> v4:
> * Moved change log below '---' marker.
> 
> v3:
> * Removed an extra asterisk from a comment.
> * Renamed device reset function and moved it to virtio_user_ethdev.c.
> 
> v2:
> * Renamed queue reset functions and moved them to virtqueue.c.
> ---
>  drivers/net/virtio/virtio_ethdev.c      |  4 +-
>  drivers/net/virtio/virtio_user_ethdev.c | 42 +++++++++++++++
>  drivers/net/virtio/virtqueue.c          | 71 +++++++++++++++++++++++++
>  drivers/net/virtio/virtqueue.h          |  4 ++
>  4 files changed, 119 insertions(+), 2 deletions(-)

Applied to dpdk-next-virtio/master

Thanks,
Maxime


  parent reply index

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-09 16:49 [dpdk-stable] [PATCH v1] " Xuan Ding
2019-12-09  8:51 ` [dpdk-stable] [dpdk-dev] " Liu, Yong
2019-12-12 11:08   ` Ding, Xuan
2019-12-18  2:24 ` [dpdk-stable] [PATCH v3] " Xuan Ding
2019-12-18  2:25   ` [dpdk-stable] [dpdk-dev] " Ye Xiaolong
2019-12-18  2:38     ` Ding, Xuan
2019-12-23  7:25   ` [dpdk-stable] [PATCH v4] " Xuan Ding
2020-01-14 15:04     ` Maxime Coquelin
2020-01-15  6:08       ` Ding, Xuan
2020-01-15  6:13     ` [dpdk-stable] [PATCH v5] " Xuan Ding
2020-01-15 10:47       ` Maxime Coquelin
2020-01-15 11:16       ` Maxime Coquelin [this message]
2020-01-15 15:40         ` Ferruh Yigit
2020-01-16  7:13           ` Ding, Xuan

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