From: erik quanstrom <quanstro@quanstro.net>
To: 9fans@hamnavoe.com, 9fans@9fans.net
Subject: Re: [9fans] usbether
Date: Sat, 29 Sep 2012 14:41:39 -0400 [thread overview]
Message-ID: <9680a4c5cb0d2d5ae048e7338c49bb61@kw.quanstro.net> (raw)
In-Reply-To: <896eab203042b2e267eb2b12d585a553@hamnavoe.com>
On Sat Sep 29 14:02:51 EDT 2012, 9fans@hamnavoe.com wrote:
> > why doesn't the device do the buffering?
>
> By "device" do you mean the hardware usb/ether adapter? It does some
i ment #u itself. sorry for being unclear. actually, echoing
gorka, i think there's going to need to be enough threads/buffering
to decouple the packet pipeline.
it might be that the usb packet shuffler should be in the kernel, and
usbd should poke it from user land. for a device without more
processing power than a cray 2, this could make a big difference.
i wrote a sd loopback device that turns a file into a sd device;
perhaps the same model would work for ether? (sdloop is in 9atom.)
- erik
next prev parent reply other threads:[~2012-09-29 18:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-29 16:16 Richard Miller
2012-09-29 16:39 ` Gorka Guardiola
2012-09-29 17:03 ` erik quanstrom
2012-09-29 18:01 ` Richard Miller
2012-09-29 18:19 ` Gorka Guardiola
2012-09-29 18:24 ` Richard Miller
2012-09-29 21:38 ` Gorka Guardiola
2012-09-29 21:46 ` Richard Miller
2012-09-29 21:48 ` erik quanstrom
2012-10-01 19:20 ` Richard Miller
2012-09-30 9:20 ` Charles Forsyth
2012-09-30 10:24 ` Richard Miller
2012-09-30 13:54 ` Charles Forsyth
2012-09-29 18:41 ` erik quanstrom [this message]
2012-09-29 19:49 ` Charles Forsyth
2012-09-30 23:29 ` Tristan
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