From: Benedikt Spranger <b.spranger@linutronix.de>
To: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Oliver Hartkopp <socketcan@hartkopp.net>,
Wolfgang Grandegger <wg@grandegger.com>,
linux-can <linux-can@vger.kernel.org>
Subject: Re: API to support hardware priorities
Date: Mon, 9 Nov 2015 17:36:36 +0100 [thread overview]
Message-ID: <20151109173636.1f98f861@mitra> (raw)
In-Reply-To: <5640BDE1.7060508@pengutronix.de>
Am Mon, 9 Nov 2015 16:38:09 +0100
schrieb Marc Kleine-Budde <mkl@pengutronix.de>:
> OK, I was not aware of that feature. I'll have a look to the
> datasheets. What's the benefit of associating a mailbox to a specific
> ID in the hardware?
A "stop all engines. NOW!"-message would not blocked by 1001 bulk
messages telling about air pressure, temperature and sunshine.
Look at it from a "classic" microcontroller POV.
> ...one serving the bulk hardware FIFO and one serving the high prio HW
"tree/net/sched/em_canid.c" and multiple queues look promising.
Will have a deeper look at it.
Regards
Bene
prev parent reply other threads:[~2015-11-09 16:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20151109123618.41ad1bae@mitra>
2015-11-09 13:32 ` API to support hardware priorities (was: Re: API zur hardwareunterstützten Priorisierung von CAN-Paketen) Marc Kleine-Budde
2015-11-09 13:51 ` API to support hardware priorities Marc Kleine-Budde
2015-11-09 14:04 ` Oliver Hartkopp
2015-11-09 15:27 ` Benedikt Spranger
2015-11-09 15:38 ` Marc Kleine-Budde
2015-11-09 16:36 ` Benedikt Spranger [this message]
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