| title: | Re PATCH mlx4 core module param to limit |
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From: Arthur Kepner <akepner@xxxxxxx
Date: Fri, 3 Sep 2010 15:13:03 -0700
On Fri, Sep 03, 2010 at 02:46:58PM -0700, David Miller wrote:
No, you really cant do it this way, IRQ allocation management has to
be in the kernel.
Really? I was specifically trying to avoid that, and let the
policy about interrupt assignment be done in a user process.
Do you have any specific ideas about how thatd look?
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.
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.
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