From mboxrd@z Thu Jan 1 00:00:00 1970 From: jackm Subject: Re: [PATCH rdma-rc 5/9] IB/mlx4: Handle well-known-gid in mad_demux processing Date: Sun, 6 Nov 2016 20:41:07 +0200 Message-ID: <20161106204107.00005742@dev.mellanox.co.il> References: <1478375842-21513-1-git-send-email-leonro@mellanox.com> <1478375842-21513-6-git-send-email-leonro@mellanox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Hal Rosenstock Cc: Leon Romanovsky , dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Daniel Jurgens , Leon Romanovsky , eitan-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org List-Id: linux-rdma@vger.kernel.org On Sat, 5 Nov 2016 17:03:25 -0400 Hal Rosenstock wrote: > Isn't the SA well-known GID the concatenation of the subnet prefix > (which isn't necessarily the default link local one) and the GUID > 0x0200000000000002 ? You are correct regarding the subnet prefix (it should be the port's current subnet prefix, and not the default subnet prefix). Regarding the SM GUID, the version of the Virtualization Annex that I worked with (v17 -- Feb 16, 2015) states: SM GID A well-known GID that is associated with the SM, comprising the concatenation of the Subnet prefix and the GUID 0x2. The SM GID is never present in any GID Table. Has the SM GUID value changed (0x2 -->0x0200000000000002) in the Annex since v17? (I'm not a member of the MGTWG workgroup, so I don't have access to the most recent version). -Jack -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html