From: David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
To: oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org
Cc: shemminger-ZtmgI6mnKB3QT0dZR+AlfA@public.gmane.org,
stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org,
tom.leiming-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: future developments of usbnet
Date: Thu, 12 May 2011 13:46:55 -0400 (EDT) [thread overview]
Message-ID: <20110512.134655.235895548164532973.davem@davemloft.net> (raw)
In-Reply-To: <201105120959.28473.oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org>
From: Oliver Neukum <oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org>
Date: Thu, 12 May 2011 09:59:28 +0200
> Our problem here is that USB doesn't work sanely without
> interrupts. We can stop IO regarding rx, but we cannot stop
> interrupts if we want to do rx.
Understood.
However, I was wondering if you could do this in software. When URBs
trigger, just queue that pending work up in a software queue when NAPI
is scheduled, then when you exit NAPI polling you check that queue to
see if there are interrupt events to process.
Similarly to how we handle software interrupts.
Anyways, just an idea.
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next prev parent reply other threads:[~2011-05-12 17:46 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-06 18:45 future developments of usbnet Oliver Neukum
[not found] ` <201105062045.37336.oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org>
2011-05-09 3:26 ` Ming Lei
2011-05-09 8:42 ` Oliver Neukum
[not found] ` <201105091042.01014.oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org>
2011-05-09 15:22 ` Ming Lei
2011-05-09 15:31 ` Alan Stern
2011-05-09 15:46 ` Stephen Hemminger
2011-05-11 17:37 ` Oliver Neukum
[not found] ` <201105111937.47448.oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org>
2011-05-11 17:47 ` David Miller
2011-05-12 7:59 ` Oliver Neukum
[not found] ` <201105120959.28473.oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org>
2011-05-12 14:37 ` Alan Stern
2011-05-14 10:01 ` Oliver Neukum
[not found] ` <201105141201.40265.oliver-GvhC2dPhHPQdnm+yROfE0A@public.gmane.org>
2011-05-14 10:46 ` Michał Mirosław
2011-05-12 17:46 ` David Miller [this message]
2011-05-10 9:42 ` Richard Cochran
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