From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: Marvin Liu <yong.liu@intel.com>, tiwei.bie@intel.com
Cc: zhihong.wang@intel.com, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v3 01/11] vhost: advertise support in-order feature
Date: Thu, 28 Jun 2018 16:32:54 +0200 [thread overview]
Message-ID: <49ce4761-e598-816e-3110-8e37cf1ff002@redhat.com> (raw)
In-Reply-To: <20180628215235.106069-2-yong.liu@intel.com>
On 06/28/2018 11:52 PM, Marvin Liu wrote:
> If devices always use descriptors in the same order in which they have
> been made available. These devices can offer the VIRTIO_F_IN_ORDER
> feature. If negotiated, this knowledge allows devices to notify the use
> of a batch of buffers to virtio driver by only writing used ring index.
>
> Vhost user device has supported this feature by default. If vhost
> dequeue zero is enabled, should disable VIRTIO_F_IN_ORDER as vhost can’t
> assure that descriptors returned from NIC are in order.
>
> Signed-off-by: Marvin Liu <yong.liu@intel.com>
>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Thanks,
Maxime
next prev parent reply other threads:[~2018-06-28 14:32 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-28 21:52 [dpdk-dev] [PATCH v3 00/11] " Marvin Liu
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 01/11] vhost: advertise " Marvin Liu
2018-06-28 14:32 ` Maxime Coquelin [this message]
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 02/11] net/virtio: add in-order feature bit definition Marvin Liu
2018-06-28 14:33 ` Maxime Coquelin
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 03/11] net/virtio-user: add unsupported features mask Marvin Liu
2018-06-28 14:34 ` Maxime Coquelin
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 04/11] net/virtio-user: add mrg_rxbuf and in_order vdev parameters Marvin Liu
2018-06-28 14:43 ` Maxime Coquelin
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 05/11] net/virtio: free in-order descriptors before device start Marvin Liu
2018-06-28 14:45 ` Maxime Coquelin
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 06/11] net/virtio: extract common part for in-order functions Marvin Liu
2018-06-28 14:48 ` Maxime Coquelin
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 07/11] net/virtio: support in-order Rx and Tx Marvin Liu
2018-06-28 15:08 ` Maxime Coquelin
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 08/11] net/virtio: add in-order Rx/Tx into selection Marvin Liu
2018-06-28 15:16 ` Maxime Coquelin
2018-06-28 15:39 ` Liu, Yong
2018-06-29 8:04 ` Maxime Coquelin
2018-06-30 2:42 ` Tiwei Bie
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 09/11] net/virtio: advertise support in-order feature Marvin Liu
2018-06-28 15:16 ` Maxime Coquelin
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 10/11] doc: add mrg_rxbuf and in_order parameters for virtio device Marvin Liu
2018-06-28 15:17 ` Maxime Coquelin
2018-06-28 21:52 ` [dpdk-dev] [PATCH v3 11/11] doc: add in-order funciton " Marvin Liu
2018-06-28 15:17 ` Maxime Coquelin
2018-06-29 13:10 ` [dpdk-dev] [PATCH v3 00/11] support in-order feature Maxime Coquelin
2018-06-30 16:07 ` Liu, Yong
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