From 90f9e934647e652a69396e18c779215a493271cf Mon Sep 17 00:00:00 2001
From: Jon Mason <jon.mason@intel.com>
Date: Fri, 1 Feb 2013 15:34:35 -0700
Subject: [PATCH] NTB: reset tx_index on link toggle

If the NTB link toggles, the driver could stop receiving due to the
tx_index not being set to 0 on the transmitting size on a link-up event.
This is due to the driver expecting the incoming data to start at the
beginning of the receive buffer and not at a random place.

Signed-off-by: Jon Mason <jon.mason@intel.com>
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