From 6d6a0e71eec5886f2511632a38f28f1ed7794d70 Mon Sep 17 00:00:00 2001
From: Alexander Chiang <achiang@hp.com>
Date: Tue, 2 Feb 2010 19:08:09 +0000
Subject: [PATCH] IB/uverbs: Increase maximum devices supported

Some large systems may support more than IB_UVERBS_MAX_DEVICES
(currently 32).

This change allows us to support more devices in a backwards-compatible
manner.  The first IB_UVERBS_MAX_DEVICES keep the same major/minor
device numbers that they've always had.

If there are more than IB_UVERBS_MAX_DEVICES, we then dynamically
request a new major device number (new minors start at 0).

This change increases the maximum number of HCAs to 64 (from 32).

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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