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Date: Sun, 26 Oct 2014 19:05:43 +0100
From: Heiner Kallweit <heiner.kallweit@web.de>
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CC: "linux-arm-kernel"@lists.infradead.org, l.stach@pengutronix.de
Subject: Setting cpu affinity for MSI-X on i.mx6 possible?
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I use a mini pc with i.mx6 dual and Intel igb based nic (I211) connected via PCIE.
igb driver uses MSI-X and creates two rx/tx queue pairs. However the IRQs of all queues are handled by the same CPU.
Changing affinity is not possible. Obvious direct reason is that irq_chip PCI-MSI doesn't implement the callback
for setting cpu affinity.
I'd appreciate a hint whether this is a general limitation of the Cortex-A9 / GICv1 / Synopsys Designware
architecture or whether just a proper implementation is missing yet.

Rgds, Heiner