From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roland Dreier Subject: Re: [PATCHv9 09/12] ib_core: Add VLAN support to IBoE Date: Mon, 16 Aug 2010 15:17:42 -0700 Message-ID: References: <20100806144153.GJ20588@mtldesk30> <20100806164915.GL11306@obsidianresearch.com> <20100816125128.GB22111@mtldesk30> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: In-Reply-To: <20100816125128.GB22111@mtldesk30> (Eli Cohen's message of "Mon, 16 Aug 2010 15:51:28 +0300") Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Eli Cohen Cc: Jason Gunthorpe , RDMA list List-Id: linux-rdma@vger.kernel.org I think I've lost the plot a bit here. > The 3 bit user priority field is identical to the 3 bits of the SL. I'm having a hard time figuring out what this sentence has to do with this patch. I don't see anywhere in the patch where the sl field is used except for copying the TOS into it, and I don't see what "user priority field" might be referring to. Also, how do VLANs work with multicast? As far as I can tell, there are no spare bits in an IB MGID or IPv6 multicast address that can be stolen to use for a VLAN ID. For example, how would I create an AH to use to send to MGID ff02::1 on VLAN 25? - R. -- Roland Dreier || For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/index.html -- 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