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From: Jason Wang <jasowang@redhat.com>
To: Tiwei Bie <tiwei.bie@intel.com>,
mst@redhat.com, virtualization@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Cc: wexu@redhat.com, jfreimann@redhat.com
Subject: Re: [RFC v3 0/5] virtio: support packed ring
Date: Wed, 2 May 2018 11:49:43 +0800 [thread overview]
Message-ID: <31839145-3e87-2cc7-dfca-a09ae64b976a@redhat.com> (raw)
In-Reply-To: <20180425051550.24342-1-tiwei.bie@intel.com>
On 2018年04月25日 13:15, Tiwei Bie wrote:
> Hello everyone,
>
> This RFC implements packed ring support in virtio driver.
>
> Some simple functional tests have been done with Jason's
> packed ring implementation in vhost:
>
> https://lkml.org/lkml/2018/4/23/12
>
> Both of ping and netperf worked as expected (with EVENT_IDX
> disabled). But there are below known issues:
>
> 1. Reloading the guest driver will break the Tx/Rx;
It looks like the reason is we don't sync wrap counter information
between host and qemu through VHOST_SET/GET_VRING_BASE. And both vhost
and qemu need to do this through encoding warp counters to higher bits
of vhost_vring_state.num,
Thanks
prev parent reply other threads:[~2018-05-02 3:50 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-25 5:15 Tiwei Bie
2018-04-25 5:15 ` [RFC v3 1/5] virtio: add packed ring definitions Tiwei Bie
2018-04-25 5:15 ` [RFC v3 2/5] virtio_ring: support creating packed ring Tiwei Bie
2018-04-25 5:15 ` [RFC v3 3/5] virtio_ring: add packed ring support Tiwei Bie
2018-05-10 7:32 ` Jason Wang
2018-05-10 7:34 ` Jason Wang
2018-05-10 8:56 ` Tiwei Bie
2018-05-10 9:49 ` Jason Wang
2018-05-10 10:50 ` Tiwei Bie
2018-04-25 5:15 ` [RFC v3 4/5] virtio_ring: add event idx support in packed ring Tiwei Bie
2018-05-02 2:51 ` Jason Wang
2018-05-02 7:28 ` Tiwei Bie
2018-05-02 13:51 ` Michael S. Tsirkin
2018-05-02 15:12 ` Tiwei Bie
2018-05-02 15:42 ` Michael S. Tsirkin
2018-05-03 1:11 ` Tiwei Bie
2018-05-03 1:44 ` Michael S. Tsirkin
2018-05-03 2:09 ` Tiwei Bie
2018-05-03 7:25 ` Jason Wang
2018-05-03 13:54 ` Tiwei Bie
2018-05-08 3:05 ` Jason Wang
2018-05-08 5:40 ` Jason Wang
2018-05-08 6:44 ` Tiwei Bie
2018-05-08 7:16 ` Jason Wang
2018-05-08 9:16 ` Tiwei Bie
2018-05-08 9:34 ` Jason Wang
2018-05-08 9:44 ` Tiwei Bie
2018-05-09 3:43 ` Jason Wang
2018-05-16 5:01 ` Jason Wang
2018-05-16 5:55 ` Tiwei Bie
2018-04-25 5:15 ` [RFC v3 5/5] virtio_ring: enable " Tiwei Bie
2018-04-27 3:56 ` [RFC v3 0/5] virtio: support " Jason Wang
2018-04-27 4:18 ` Michael S. Tsirkin
2018-04-27 6:17 ` Jason Wang
2018-04-27 9:12 ` Tiwei Bie
2018-04-28 2:45 ` Jason Wang
2018-05-02 3:49 ` Jason Wang [this message]
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