From: Shahaf Shuler <shahafs@mellanox.com>
To: Ye Xiaolong <xiaolong.ye@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
Maxime Coquelin <maxime.coquelin@redhat.com>,
Tiwei Bie <tiwei.bie@intel.com>,
Zhihong Wang <zhihong.wang@intel.com>,
"xiao.w.wang@intel.com" <xiao.w.wang@intel.com>,
Rami Rosen <roszenrami@gmail.com>,
Wang Haiyue <haiyue.wang@intel.com>
Subject: Re: [dpdk-dev] [PATCH v8 2/2] examples/vdpa: introduce a new sample for vDPA
Date: Thu, 17 Jan 2019 15:17:25 +0000 [thread overview]
Message-ID: <DB7PR05MB442688E0132F442EBA142C2BC3830@DB7PR05MB4426.eurprd05.prod.outlook.com> (raw)
In-Reply-To: <20190117151327.GA54315@intel.com>
Thursday, January 17, 2019 5:13 PM, Ye Xiaolong:
> Subject: Re: [dpdk-dev] [PATCH v8 2/2] examples/vdpa: introduce a new
> sample for vDPA
>
> Hi,
>
> On 01/17, Shahaf Shuler wrote:
> >Hi,
> >
> >Going back to this merged commit,
> >
> >Saturday, September 29, 2018 12:48 AM, Xiaolong Ye:
> >> Subject: [dpdk-dev] [PATCH v8 2/2] examples/vdpa: introduce a new
> >> sample for vDPA
> >>
> >> The vdpa sample application creates vhost-user sockets by using the
> >> vDPA backend. vDPA stands for vhost Data Path Acceleration which
> >> utilizes virtio ring compatible devices to serve virtio driver
> >> directly to enable datapath acceleration. As vDPA driver can help to
> >> set up vhost datapath, this application doesn't need to launch
> >> dedicated worker threads for vhost enqueue/dequeue operations.
> >>
> >> Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
> >> Acked-by: Xiao Wang <xiao.w.wang@intel.com>
> >> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> >> ---
> >
> >[...]
> >
> >> +
> >> +Start the VMs
> >> +~~~~~~~~~~~~~
> >> +
> >> +.. code-block:: console
> >> +
> >> + qemu-system-x86_64 -cpu host -enable-kvm \
> >> + <snip>
> >> + -mem-prealloc \
> >> + -chardev socket,id=char0,path=<socket_file created in above steps>
> \
> >> + -netdev type=vhost-user,id=vdpa,chardev=char0 \
> >> + -device
> >> + virtio-net-pci,netdev=vdpa,mac=00:aa:bb:cc:dd:ee,page-per-vq=on \
> >
> >
> >It doesn't seems like qemu has the id=vdpa and netdev=vdpa options.
> >Grepping vdpa on qemu returns empty.
> >
> >Am using QEMU v3.1.0-513-gfb177a0. Commit head is fb177a036f2e
> ("MAINTAINERS: Mark RISC-V as Supported").
> >
> >Did I missed anything?
> >
>
> Not quite sure about your question here, the vdpa used in above qemu
> cmdline is just a normal string, you can replace it with other string like
>
> -netdev type=vhost-user,id=mynet,chardev=char0 \ -device virtio-net-
> pci,netdev=mynet,...
>
> The major support for vdpa is done in dpdk side as the vhost user backend,
> qemu will use normal vhost user protocol to communicate with it.
Thanks. I mis-interpreted the option fields.
>
> Thanks,
> Xiaolong
next prev parent reply other threads:[~2019-01-17 15:17 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-20 22:28 [dpdk-dev] [PATCH v3 0/2] introduce vdpa sample Xiaolong Ye
2018-09-20 22:28 ` [dpdk-dev] [PATCH v3 1/2] vhost: introduce API to get vDPA device number Xiaolong Ye
2018-09-20 22:28 ` [dpdk-dev] [PATCH v3 2/2] examples/vdpa: introduce a new sample for vDPA Xiaolong Ye
2018-09-21 5:07 ` Wang, Xiao W
2018-09-22 11:04 ` Ye Xiaolong
2018-09-24 8:42 ` [dpdk-dev] [PATCH v4 0/2] introduce vdpa sample Xiaolong Ye
2018-09-24 8:42 ` [dpdk-dev] [PATCH v4 1/2] vhost: introduce API to get vDPA device number Xiaolong Ye
2018-09-24 8:42 ` [dpdk-dev] [PATCH v4 2/2] examples/vdpa: introduce a new sample for vDPA Xiaolong Ye
2018-09-24 4:12 ` Wang, Xiao W
2018-09-24 21:30 ` Ye Xiaolong
2018-09-25 12:07 ` [dpdk-dev] [PATCH v5 0/2] introduce vdpa sample Xiaolong Ye
2018-09-25 12:07 ` [dpdk-dev] [PATCH v5 1/2] vhost: introduce API to get vDPA device number Xiaolong Ye
2018-09-25 12:07 ` [dpdk-dev] [PATCH v5 2/2] examples/vdpa: introduce a new sample for vDPA Xiaolong Ye
2018-09-25 8:32 ` Wang, Xiao W
2018-09-26 9:06 ` [dpdk-dev] [PATCH v6 0/2] introduce vdpa sample Xiaolong Ye
2018-09-26 3:15 ` Wang, Xiao W
2018-09-26 9:06 ` [dpdk-dev] [PATCH v6 1/2] vhost: introduce API to get vDPA device number Xiaolong Ye
2018-09-26 9:06 ` [dpdk-dev] [PATCH v6 2/2] examples/vdpa: introduce a new sample for vDPA Xiaolong Ye
2018-09-27 16:37 ` Maxime Coquelin
2018-09-28 7:32 ` Ye Xiaolong
2018-09-28 11:23 ` [dpdk-dev] [PATCH v7 0/2] introduce vdpa sample Xiaolong Ye
2018-09-28 11:23 ` [dpdk-dev] [PATCH v7 1/2] vhost: introduce API to get vDPA device number Xiaolong Ye
2018-09-28 11:23 ` [dpdk-dev] [PATCH v7 2/2] examples/vdpa: introduce a new sample for vDPA Xiaolong Ye
2018-09-28 7:31 ` Maxime Coquelin
2018-09-28 14:33 ` Ye Xiaolong
2018-09-28 7:49 ` Maxime Coquelin
2018-09-28 15:17 ` Ye Xiaolong
2018-09-28 8:31 ` Maxime Coquelin
2018-09-28 17:37 ` Ye Xiaolong
2018-09-28 21:47 ` [dpdk-dev] [PATCH v8 0/2] introduce vdpa sample Xiaolong Ye
2018-09-28 21:47 ` [dpdk-dev] [PATCH v8 1/2] vhost: introduce API to get vDPA device number Xiaolong Ye
2018-10-02 13:19 ` Ferruh Yigit
2018-10-03 5:53 ` Ye Xiaolong
2018-09-28 21:47 ` [dpdk-dev] [PATCH v8 2/2] examples/vdpa: introduce a new sample for vDPA Xiaolong Ye
2018-10-02 14:03 ` Ferruh Yigit
2018-10-03 6:04 ` Ye Xiaolong
2018-10-03 7:48 ` Ferruh Yigit
2019-01-17 14:37 ` Shahaf Shuler
2019-01-17 15:13 ` Ye Xiaolong
2019-01-17 15:17 ` Shahaf Shuler [this message]
2018-10-02 12:51 ` [dpdk-dev] [PATCH v8 0/2] introduce vdpa sample Maxime Coquelin
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