From: linas@austin.ibm.com (Linas Vepstas)
To: Arnd Bergmann <arnd@arndb.de>
Cc: akpm@osdl.org, jeff@garzik.org, netdev@vger.kernel.org,
jklewis@us.ibm.com, linux-kernel@vger.kernel.org,
linuxppc-dev@ozlabs.org, Jens.Osterkamp@de.ibm.com,
David Miller <davem@davemloft.net>
Subject: Re: [PATCH 1/2]: powerpc/cell spidernet bottom half
Date: Wed, 16 Aug 2006 18:30:28 -0500 [thread overview]
Message-ID: <20060816233028.GO20551@austin.ibm.com> (raw)
In-Reply-To: <200608170016.47072.arnd@arndb.de>
On Thu, Aug 17, 2006 at 12:16:46AM +0200, Arnd Bergmann wrote:
> Am Wednesday 16 August 2006 23:32 schrieb David Miller:
> > Can spidernet be told these kinds of parameters? "N packets or
> > X usecs"?
>
> It can not do exactly this but probably we can get close to it by
Why would you want o do this? It seems like a cruddier strategy
than what we can already do (which is to never get an transmit
interrupt, as long as the kernel can shove data into the device fast
enough to keep the queue from going empty.) The whole *point* of a
low-watermark interrupt is to never have to actually get the interrupt,
if the rest of the system is on its toes and is supplying data fast
enough.
--linas
next prev parent reply other threads:[~2006-08-16 23:30 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-11 17:03 [PATCH 0/4]: powerpc/cell spidernet ethernet driver fixes Linas Vepstas
2006-08-11 17:06 ` [PATCH 1/4]: powerpc/cell spidernet burst alignment patch Linas Vepstas
2006-08-11 17:08 ` [PATCH 2/4]: powerpc/cell spidernet low watermark patch Linas Vepstas
2006-08-16 23:43 ` Benjamin Herrenschmidt
2006-08-18 19:23 ` Linas Vepstas
2006-08-18 21:25 ` David Miller
2006-08-18 22:46 ` Linas Vepstas
2006-08-18 22:51 ` David Miller
2006-08-18 23:29 ` Linas Vepstas
2006-08-18 23:45 ` Linas Vepstas
2006-08-19 4:33 ` Benjamin Herrenschmidt
2006-08-22 0:13 ` Linas Vepstas
2006-08-22 0:30 ` David Miller
2006-08-19 4:31 ` Benjamin Herrenschmidt
2006-08-11 17:09 ` [PATCH 3/4]: powerpc/cell spidernet stop error printing patch Linas Vepstas
2006-08-11 17:11 ` [PATCH 4/4]: powerpc/cell spidernet ethtool -i version number info Linas Vepstas
2006-08-11 18:00 ` Olof Johansson
2006-08-11 18:50 ` James K Lewis
2006-08-11 19:46 ` Linas Vepstas
2006-08-15 19:05 ` Olof Johansson
2006-08-16 0:29 ` Michael Ellerman
2006-08-11 17:42 ` [PATCH 0/4]: powerpc/cell spidernet ethernet driver fixes jschopp
2006-08-11 17:44 ` Sam Ravnborg
2006-08-11 19:31 ` Linas Vepstas
2006-08-11 20:27 ` Arnd Bergmann
2006-08-16 16:18 ` [PATCH 1/2]: powerpc/cell spidernet bottom half Linas Vepstas
2006-08-16 16:30 ` Jeff Garzik
2006-08-16 20:30 ` Linas Vepstas
2006-08-16 20:34 ` Jeff Garzik
2006-08-16 20:46 ` David Miller
2006-08-16 21:24 ` Arnd Bergmann
2006-08-16 21:32 ` David Miller
2006-08-16 22:16 ` Arnd Bergmann
2006-08-16 22:29 ` David Miller
2006-08-16 22:47 ` Arnd Bergmann
2006-08-16 23:30 ` Linas Vepstas [this message]
2006-08-16 23:32 ` David Miller
2006-08-17 0:23 ` Linas Vepstas
2006-08-16 23:24 ` Linas Vepstas
2006-08-16 22:55 ` Linas Vepstas
2006-08-16 23:03 ` Arnd Bergmann
2006-08-16 23:47 ` Linas Vepstas
2006-08-16 23:08 ` Rick Jones
2006-08-16 21:58 ` Linas Vepstas
2006-08-16 16:23 ` [PATCH 2/2]: powerpc/cell spidernet refine locking Linas Vepstas
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