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Subject: Re: [net] protecting interfaces from races between control and data ?
From: Adrian Chadd <adrian@freebsd.org>
To: Scott Long <scott4long@yahoo.com>
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Cc: Andre Oppermann <andre@freebsd.org>, mike@karels.net,
 Bryan Venteicher <bryanv@daemoninthecloset.org>,
 Navdeep Parhar <np@freebsd.org>, net@freebsd.org,
 Giuseppe Lettieri <g.lettieri@iet.unipi.it>, Luigi Rizzo <rizzo@iet.unipi.it>
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On 7 August 2013 13:08, Scott Long <scott4long@yahoo.com> wrote:

> An even rore relevant difference is that taskqueues have a much stronger
> management API.  Ithreads can only be scheduled by generating a hardware interrupt,
> can only be drained by calling bus_teardown_intr(), and cannot be paused.  Taskqueues
> give you direct access to this control.

It would be really nice if we had a software method to trigger an
ithread to run, like a software interrupt.

It would also be nice to pin taskqueues to CPUs, we can do with
ithreads at the moment.



-adrian