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From: Dominique Martinet <asmadeus@codewreck.org>
To: Christian Schoenebeck <linux_oss@crudebyte.com>
Cc: Eric Van Hensbergen <ericvh@gmail.com>,
	Greg Kurz <groug@kaod.org>, Latchesar Ionkov <lucho@ionkov.net>,
	Nikolay Kichukov <nikolay@oldum.net>,
	netdev@vger.kernel.org, v9fs-developer@lists.sourceforge.net
Subject: Re: [PATCH v4 00/12] remove msize limit in virtio transport
Date: Fri, 8 Jul 2022 20:40:36 +0900	[thread overview]
Message-ID: <YsgXtBsfLEQ9dFux@codewreck.org> (raw)
In-Reply-To: <1690835.L3irNgtgWz@silver>

Christian Schoenebeck wrote on Fri, Jul 08, 2022 at 01:18:40PM +0200:
> On Freitag, 8. Juli 2022 04:26:40 CEST Eric Van Hensbergen wrote:
> > kvmtool might be the easiest I guess - I’m traveling right now but I can
> > try and find some others.  The arm fast models have free versions that are
> > downloadable as well.  I know I’ve seem some other less-traditional uses of
> > virtio particularly in libos deployments but will take some time to rattle
> > those from my memory.
> 
> Some examples would indeed be useful, thanks!

https://github.com/kvmtool/kvmtool indeed has a 9p server, I think I
used to run it ages ago.
I'll give it a fresh spin, thanks for the reminder.

For this one it defines VIRTQUEUE_NUM to 128, so not quite 1024.


> > > I found https://github.com/moby/hyperkit for OSX but that doesn't really
> > > help me, and can't see much else relevant in a quick search
> 
> So that appears to be a 9p (@virtio-PCI) client for xhyve,

oh the 9p part is client code?
the readme says it's a server:
"It includes a complete hypervisor, based on xhyve/bhyve"
but I can't run it anyway, so I didn't check very hard.

> with max. 256kB buffers <=> max. 68 virtio descriptors (memory segments) [1]:

huh...

Well, as long as msize is set I assume it'll work out anyway? How does
virtio queue size work with e.g. parallel messages?

Anyway, even if the negotiation part gets done servers won't all get
implemented in a day, so we need to think of other servers a bit..

--
Dominique

  reply	other threads:[~2022-07-08 11:41 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-30 13:23 [PATCH v4 00/12] remove msize limit in virtio transport Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 12/12] net/9p: allocate appropriate reduced message buffers Christian Schoenebeck
2022-04-02 14:05   ` Dominique Martinet
2022-04-03 11:29     ` Christian Schoenebeck
2022-04-03 12:37       ` Dominique Martinet
2022-04-03 14:00         ` Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 08/12] net/9p: limit 'msize' to KMALLOC_MAX_SIZE for all transports Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 04/12] 9p/trans_virtio: introduce struct virtqueue_sg Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 01/12] net/9p: show error message if user 'msize' cannot be satisfied Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 10/12] 9p: add P9_ERRMAX for 9p2000 and 9p2000.u Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 11/12] net/9p: add p9_msg_buf_size() Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 06/12] 9p/trans_virtio: support larger msize values Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 02/12] 9p/trans_virtio: separate allocation of scatter gather list Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 09/12] net/9p: split message size argument into 't_size' and 'r_size' pair Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 07/12] 9p/trans_virtio: resize sg lists to whatever is possible Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 05/12] net/9p: add trans_maxsize to struct p9_client Christian Schoenebeck
2021-12-30 13:23 ` [PATCH v4 03/12] 9p/trans_virtio: turn amount of sg lists into runtime info Christian Schoenebeck
2022-01-20 22:43 ` [PATCH v4 00/12] remove msize limit in virtio transport Nikolay Kichukov
2022-01-22 13:34   ` Christian Schoenebeck
2022-01-24 10:21     ` Nikolay Kichukov
2022-01-24 11:07       ` Dominique Martinet
2022-01-24 11:57         ` Christian Schoenebeck
2022-01-24 12:56           ` Dominique Martinet
2022-01-24 13:55             ` Christian Schoenebeck
2022-01-25  8:45           ` Nikolay Kichukov
2022-05-24  8:10         ` Nikolay Kichukov
2022-05-24 11:29           ` Christian Schoenebeck
2022-07-07 14:30 ` Christian Schoenebeck
     [not found]   ` <CAFkjPT=GAoViYd0E7CZQDq3ZjhmYT0DsBytfZXnE10JL0P8O-Q@mail.gmail.com>
2022-07-08  1:15     ` Dominique Martinet
     [not found]       ` <CAFkjPTngeFh=0mPVW-Yf1Sxkxp_HDNUeANndoYN3-eU9_rGLuQ@mail.gmail.com>
2022-07-08 11:18         ` Christian Schoenebeck
2022-07-08 11:40           ` Dominique Martinet [this message]
2022-07-08 13:00             ` Christian Schoenebeck

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