From: Arthur Kepner <akepner@sgi.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH] mlx4_core: module param to limit msix vec allocation
Date: Mon, 6 Sep 2010 10:42:45 -0700 [thread overview]
Message-ID: <20100906174245.GA12956@sgi.com> (raw)
In-Reply-To: <20100903.193046.184840227.davem@davemloft.net>
On Fri, Sep 03, 2010 at 07:30:46PM -0700, David Miller wrote:
> ...
> Likely there would be a set of policies just like the cpu
> power management layer we have. And there would be a default,
> and userland could override the default.
Thanks. I had thought this over again, and come up with
something like what you describe. Testing now, and plan
to send a work-in-progress patch later today for comments.
>
> This also means there would have to be notifications sent to
> drivers when the distribution and allocation policy of MSI-X
> interrupts is changed. This is so that, for example, network
> drivers can reconfigure their network queues for the new set
> of MSI-X vectors available to them after the policy change.
Hadn't considered this. Will have to add it.
--
Arthur
next prev parent reply other threads:[~2010-09-06 17:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-26 17:06 [PATCH] mlx4_core: module param to limit msix vec allocation Arthur Kepner
2010-08-26 19:24 ` David Miller
2010-09-03 20:30 ` Arthur Kepner
2010-09-03 21:46 ` David Miller
2010-09-03 22:13 ` Arthur Kepner
2010-09-04 2:30 ` David Miller
2010-09-06 17:42 ` Arthur Kepner [this message]
2010-09-06 19:51 ` David Miller
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