From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Rusty Russell <rusty-8n+1lVoiYb80n/F98K4Iww@public.gmane.org>
Cc: Stephen Rothwell <sfr-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>,
Xen Mailing List
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<jmk-zzFmDc4TPjtKvsKVC3L/VUEOCMrvLtNR@public.gmane.org>,
Herbert Xu
<herbert-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>,
kvm-devel
<kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
virtualization
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Christian Borntraeger
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Latchesar Ionkov <lionkov-YOWKrPYUwWM@public.gmane.org>,
Suzanne McIntosh
<skranjac-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>,
Martin Schwidefsky
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Subject: Re: [PATCH RFC 0/3] Virtio draft III
Date: Sun, 17 Jun 2007 17:14:55 +0300 [thread overview]
Message-ID: <467541DF.5060907@qumranet.com> (raw)
In-Reply-To: <1181999552.6237.255.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
Rusty Russell wrote:
> In this episode, Rusty tries to NAPI-ize the driver and discovers that
> virtio callbacks are a bad idea: NAPI needs to turn interrupts off and
> still be able to query for new incoming packets.
>
> Changes to core:
> 1) Back to "interrupt" model with get_inbuf()/get_outbuf() calls.
>
Seems to be these are just two different ways of iterating over the
pending buffers, and one could be implemented in terms of the other in a
few lines. I think that new new way is better, though, due to less
indirection.
btw, I'm not sure that the name 'virtio' is correct. Probably any
network or block driver which has support for batching (the vast
majority) could use this to good effect.
--
error compiling committee.c: too many arguments to function
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next prev parent reply other threads:[~2007-06-17 14:14 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-07 12:02 [PATCH RFC 0/3] Virtio draft II Rusty Russell
2007-06-07 12:04 ` [PATCH RFC 1/3] Virtio draft II: virtio.h Rusty Russell
[not found] ` <1181217867.14054.195.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-07 12:05 ` [PATCH RFC 2/3] Virtio draft II: example block driver Rusty Russell
[not found] ` <1181217920.14054.196.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-07 12:07 ` [PATCH RFC 3/3] Virtio draft II: example net driver Rusty Russell
2007-06-07 12:19 ` [PATCH RFC 2/3] Virtio draft II: example block driver Avi Kivity
[not found] ` <4667F7C0.3070604-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-08 1:11 ` Rusty Russell
[not found] ` <1181217762.14054.192.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-16 13:12 ` [PATCH RFC 0/3] Virtio draft III Rusty Russell
[not found] ` <1181999552.6237.255.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-16 13:14 ` [PATCH RFC 1/3] Virtio draft III: virtio.h Rusty Russell
[not found] ` <1181999669.6237.257.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-16 13:17 ` [PATCH RFC 2/3] Virtio draft III: example net driver Rusty Russell
[not found] ` <1181999825.6237.260.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-16 13:18 ` [PATCH RFC 3/3] Virtio draft III: example block driver Rusty Russell
[not found] ` <1181999920.6237.263.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-16 13:28 ` [PATCH] Lguest implemention of virtio draft III Rusty Russell
[not found] ` <1182000514.6237.273.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-16 13:50 ` Arnd Bergmann
2007-06-17 14:25 ` [PATCH RFC 3/3] Virtio draft III: example block driver Avi Kivity
[not found] ` <46754451.2010305-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-18 8:08 ` Rusty Russell
[not found] ` <1182154095.19064.24.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-18 9:09 ` Avi Kivity
[not found] ` <46764BB5.6070704-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-19 6:27 ` Rusty Russell
[not found] ` <1182234466.19064.51.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-19 8:34 ` Avi Kivity
2007-06-25 15:26 ` [PATCH RFC 2/3] Virtio draft III: example net driver Brian King
[not found] ` <467FDEAD.4030204-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2007-06-25 19:33 ` Christoph Hellwig
[not found] ` <20070625193304.GB25736-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2007-06-25 21:54 ` Avi Kivity
[not found] ` <46803999.4040500-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-25 22:13 ` Brian King
[not found] ` <46803E0E.7080103-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2007-06-25 22:20 ` Avi Kivity
2007-06-28 11:20 ` Rusty Russell
[not found] ` <1183029641.12401.36.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-06-28 15:55 ` Brian King
2007-06-17 14:14 ` Avi Kivity [this message]
[not found] ` <467541DF.5060907-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-06-18 7:48 ` [Xen-devel] Re: [PATCH RFC 0/3] Virtio draft III Rusty Russell
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