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Date: Thu, 05 Nov 2009 13:38:22 +0200
From: Or Gerlitz <ogerlitz@Voltaire.com>
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To: Sean Hefty <sean.hefty@intel.com>
CC: linux-rdma <linux-rdma@vger.kernel.org>
Subject: Re: [PATCH] librdmacm/mckey: enforce local binding for
	unmapped	multicast addresses
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Index: librdmacm/man/mckey.1
===================================================================
--- librdmacm.orig/man/mckey.1
+++ librdmacm/man/mckey.1
@@ -47,6 +47,9 @@ UDP (0x0111) or IPoIB (0x0002) port spac
 Basic usage is to start mckey -m multicast_address on a server system,
 then run mckey -m multicast_address -s on a client system.
 .P
+Unique SA assigned multicast GIDs can be retreived by invoking mckey
+with a zero MGID using the unmapped option, i.e  -M ::0
+.P
 Because this test maps RDMA resources to userspace, users must ensure
 that they have available system resources and permissions.  See the
 libibverbs README file for additional details.