From 19ede2e422496b2a064b9b22823c6afb66ff927b Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Date: Mon, 10 Jan 2011 17:42:21 -0800
Subject: [PATCH] IB/qib: Fix interrupt mitigation

For SusieQ we need to write to the interrupt timer register before
updating the header queue head with interrupt count.  This is to
ensure that the timer is enabled properly and a receive available
interrupt is delivered.  Otherwise this interrupt can be lost if the
receiver header/eager queues are full before the timer is enabled.

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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