* [PATCH] Reserve device id for RDMA device
@ 2021-09-03 8:03 Junji Wei
2021-09-03 8:32 ` Michael S. Tsirkin
2021-09-22 11:28 ` [virtio-dev] " Cornelia Huck
0 siblings, 2 replies; 6+ messages in thread
From: Junji Wei @ 2021-09-03 8:03 UTC (permalink / raw)
To: virtio-dev
Cc: weijunji, dledford, jgg, mst, jasowang, yuval.shaia.ml,
marcel.apfelbaum, cohuck, hare, xieyongji, chaiwen.cc,
dingtao.darren, duanxiongchun
Use device ID 42
Signed-off-by: Junji Wei <weijunji@bytedance.com>
---
content.tex | 2 ++
1 file changed, 2 insertions(+)
diff --git a/content.tex b/content.tex
index 3aeb4a4..b57c997 100644
--- a/content.tex
+++ b/content.tex
@@ -2878,6 +2878,8 @@ \chapter{Device Types}\label{sec:Device Types}
\hline
41 & GPIO device \\
\hline
+42 & RDMA device \\
+\hline
\end{tabular}
Some of the devices above are unspecified by this document,
--
2.30.1 (Apple Git-130)
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] Reserve device id for RDMA device
2021-09-03 8:03 [PATCH] Reserve device id for RDMA device Junji Wei
@ 2021-09-03 8:32 ` Michael S. Tsirkin
2021-09-22 11:28 ` [virtio-dev] " Cornelia Huck
1 sibling, 0 replies; 6+ messages in thread
From: Michael S. Tsirkin @ 2021-09-03 8:32 UTC (permalink / raw)
To: Junji Wei
Cc: virtio-dev, dledford, jgg, jasowang, yuval.shaia.ml,
marcel.apfelbaum, cohuck, hare, xieyongji, chaiwen.cc,
dingtao.darren, duanxiongchun
On Fri, Sep 03, 2021 at 04:03:03PM +0800, Junji Wei wrote:
> Use device ID 42
>
> Signed-off-by: Junji Wei <weijunji@bytedance.com>
Pls remember you will need a github issue and all that jazz.
> ---
> content.tex | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/content.tex b/content.tex
> index 3aeb4a4..b57c997 100644
> --- a/content.tex
> +++ b/content.tex
> @@ -2878,6 +2878,8 @@ \chapter{Device Types}\label{sec:Device Types}
> \hline
> 41 & GPIO device \\
> \hline
> +42 & RDMA device \\
> +\hline
> \end{tabular}
>
> Some of the devices above are unspecified by this document,
> --
> 2.30.1 (Apple Git-130)
^ permalink raw reply [flat|nested] 6+ messages in thread
* [virtio-dev] Re: [PATCH] Reserve device id for RDMA device
2021-09-03 8:03 [PATCH] Reserve device id for RDMA device Junji Wei
2021-09-03 8:32 ` Michael S. Tsirkin
@ 2021-09-22 11:28 ` Cornelia Huck
2021-09-23 3:00 ` Junji Wei
1 sibling, 1 reply; 6+ messages in thread
From: Cornelia Huck @ 2021-09-22 11:28 UTC (permalink / raw)
To: Junji Wei, virtio-dev
Cc: weijunji, dledford, jgg, mst, jasowang, yuval.shaia.ml,
marcel.apfelbaum, hare, xieyongji, chaiwen.cc, dingtao.darren,
duanxiongchun
On Fri, Sep 03 2021, Junji Wei <weijunji@bytedance.com> wrote:
> Use device ID 42
>
> Signed-off-by: Junji Wei <weijunji@bytedance.com>
> ---
> content.tex | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/content.tex b/content.tex
> index 3aeb4a4..b57c997 100644
> --- a/content.tex
> +++ b/content.tex
> @@ -2878,6 +2878,8 @@ \chapter{Device Types}\label{sec:Device Types}
> \hline
> 41 & GPIO device \\
> \hline
> +42 & RDMA device \\
> +\hline
> \end{tabular}
>
> Some of the devices above are unspecified by this document,
Do we have an answer to the issues raised with the QEMU patches? IOW, is
it reasonable to expect that we can actually implement a usuable RDMA
device? While device IDs are generally cheap, it would be good not to
have too many dead entries.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] Reserve device id for RDMA device
2021-09-22 11:28 ` [virtio-dev] " Cornelia Huck
@ 2021-09-23 3:00 ` Junji Wei
2021-09-24 13:50 ` [virtio-dev] " Cornelia Huck
0 siblings, 1 reply; 6+ messages in thread
From: Junji Wei @ 2021-09-23 3:00 UTC (permalink / raw)
To: Cornelia Huck
Cc: virtio-dev, Doug Ledford, Jason Gunthorpe, mst, Jason Wang,
yuval.shaia.ml, marcel.apfelbaum, Hannes Reinecke, Yongji Xie,
柴稳, dingtao.darren, duanxiongchun
> On Sep 22, 2021, at 7:28 PM, Cornelia Huck <cohuck@redhat.com> wrote:
>
> On Fri, Sep 03 2021, Junji Wei <weijunji@bytedance.com> wrote:
>
>> Use device ID 42
>>
>> Signed-off-by: Junji Wei <weijunji@bytedance.com>
>> ---
>> content.tex | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/content.tex b/content.tex
>> index 3aeb4a4..b57c997 100644
>> --- a/content.tex
>> +++ b/content.tex
>> @@ -2878,6 +2878,8 @@ \chapter{Device Types}\label{sec:Device Types}
>> \hline
>> 41 & GPIO device \\
>> \hline
>> +42 & RDMA device \\
>> +\hline
>> \end{tabular}
>>
>> Some of the devices above are unspecified by this document,
>
> Do we have an answer to the issues raised with the QEMU patches? IOW, is
Yes.
> it reasonable to expect that we can actually implement a usuable RDMA
> device? While device IDs are generally cheap, it would be good not to
> have too many dead entries.
I think we can implement an usable RDMA device through uRDMA (a
software implementation of the RoCEv2 protocol in QEMU with VFIO
or DPDK).
Thanks.
Junji
^ permalink raw reply [flat|nested] 6+ messages in thread
* [virtio-dev] Re: [PATCH] Reserve device id for RDMA device
2021-09-23 3:00 ` Junji Wei
@ 2021-09-24 13:50 ` Cornelia Huck
2021-09-24 14:29 ` [External] " 魏俊吉
0 siblings, 1 reply; 6+ messages in thread
From: Cornelia Huck @ 2021-09-24 13:50 UTC (permalink / raw)
To: Junji Wei
Cc: virtio-dev, Doug Ledford, Jason Gunthorpe, mst, Jason Wang,
yuval.shaia.ml, marcel.apfelbaum, Hannes Reinecke, Yongji Xie,
柴稳, dingtao.darren, duanxiongchun
On Thu, Sep 23 2021, Junji Wei <weijunji@bytedance.com> wrote:
>> On Sep 22, 2021, at 7:28 PM, Cornelia Huck <cohuck@redhat.com> wrote:
>>
>> On Fri, Sep 03 2021, Junji Wei <weijunji@bytedance.com> wrote:
>>
>>> Use device ID 42
>>>
>>> Signed-off-by: Junji Wei <weijunji@bytedance.com>
>>> ---
>>> content.tex | 2 ++
>>> 1 file changed, 2 insertions(+)
>>>
>>> diff --git a/content.tex b/content.tex
>>> index 3aeb4a4..b57c997 100644
>>> --- a/content.tex
>>> +++ b/content.tex
>>> @@ -2878,6 +2878,8 @@ \chapter{Device Types}\label{sec:Device Types}
>>> \hline
>>> 41 & GPIO device \\
>>> \hline
>>> +42 & RDMA device \\
>>> +\hline
>>> \end{tabular}
>>>
>>> Some of the devices above are unspecified by this document,
>>
>> Do we have an answer to the issues raised with the QEMU patches? IOW, is
>
> Yes.
>
>> it reasonable to expect that we can actually implement a usuable RDMA
>> device? While device IDs are generally cheap, it would be good not to
>> have too many dead entries.
>
> I think we can implement an usable RDMA device through uRDMA (a
> software implementation of the RoCEv2 protocol in QEMU with VFIO
> or DPDK).
If nobody disagrees, we can start a vote.
One last question: there were two patches, this one and the one linked
in the issue... I think they are the same, right? (I do not trust myself
on Friday afternoons.)
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [External] Re: [PATCH] Reserve device id for RDMA device
2021-09-24 13:50 ` [virtio-dev] " Cornelia Huck
@ 2021-09-24 14:29 ` 魏俊吉
0 siblings, 0 replies; 6+ messages in thread
From: 魏俊吉 @ 2021-09-24 14:29 UTC (permalink / raw)
To: Cornelia Huck
Cc: virtio-dev, Doug Ledford, Jason Gunthorpe, mst, Jason Wang,
yuval.shaia.ml, marcel.apfelbaum, Hannes Reinecke, Yongji Xie,
柴稳, dingtao.darren, duanxiongchun
On Fri, Sep 24, 2021 at 9:50 PM Cornelia Huck <cohuck@redhat.com> wrote:
>
> On Thu, Sep 23 2021, Junji Wei <weijunji@bytedance.com> wrote:
>
> >> On Sep 22, 2021, at 7:28 PM, Cornelia Huck <cohuck@redhat.com> wrote:
> >>
> >> On Fri, Sep 03 2021, Junji Wei <weijunji@bytedance.com> wrote:
> >>
> >>> Use device ID 42
> >>>
> >>> Signed-off-by: Junji Wei <weijunji@bytedance.com>
> >>> ---
> >>> content.tex | 2 ++
> >>> 1 file changed, 2 insertions(+)
> >>>
> >>> diff --git a/content.tex b/content.tex
> >>> index 3aeb4a4..b57c997 100644
> >>> --- a/content.tex
> >>> +++ b/content.tex
> >>> @@ -2878,6 +2878,8 @@ \chapter{Device Types}\label{sec:Device Types}
> >>> \hline
> >>> 41 & GPIO device \\
> >>> \hline
> >>> +42 & RDMA device \\
> >>> +\hline
> >>> \end{tabular}
> >>>
> >>> Some of the devices above are unspecified by this document,
> >>
> >> Do we have an answer to the issues raised with the QEMU patches? IOW, is
> >
> > Yes.
> >
> >> it reasonable to expect that we can actually implement a usuable RDMA
> >> device? While device IDs are generally cheap, it would be good not to
> >> have too many dead entries.
> >
> > I think we can implement an usable RDMA device through uRDMA (a
> > software implementation of the RoCEv2 protocol in QEMU with VFIO
> > or DPDK).
>
> If nobody disagrees, we can start a vote.
>
> One last question: there were two patches, this one and the one linked
> in the issue... I think they are the same, right? (I do not trust myself
> on Friday afternoons.)
>
Yes, the first patch was rejected by the virtio-dev mail list because I was
not a subscriber, so I re-sent another one.
Thanks.
Junji
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-09-24 14:29 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-09-03 8:03 [PATCH] Reserve device id for RDMA device Junji Wei
2021-09-03 8:32 ` Michael S. Tsirkin
2021-09-22 11:28 ` [virtio-dev] " Cornelia Huck
2021-09-23 3:00 ` Junji Wei
2021-09-24 13:50 ` [virtio-dev] " Cornelia Huck
2021-09-24 14:29 ` [External] " 魏俊吉
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