From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bart Van Assche Subject: Re: [PATCH RFC v2 02/10] IB/core: Introduce Signature Verbs API Date: Fri, 01 Nov 2013 15:23:35 -0700 Message-ID: <527429E7.7010705@acm.org> References: <1383222255-22699-1-git-send-email-sagig@mellanox.com> <1383222255-22699-3-git-send-email-sagig@mellanox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1383222255-22699-3-git-send-email-sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Sagi Grimberg , linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: oren-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org, tzahio-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org List-Id: linux-rdma@vger.kernel.org On 31/10/2013 5:24, Sagi Grimberg wrote: > + * @type3_inc_reftag: T10-DIF type 3 does not state > + * about the reference tag, it is the user > + * choice to increment it or not. Can you explain this further ? Does this mean that the HCA can check whether the reference tags are increasing when receiving data for TYPE 3 protection mode ? My understanding of SPC-4 is that the application is free to use the reference tag in any way when using TYPE 3 protection and hence that the HCA must not check whether the reference tag is increasing for TYPE 3 protection. See e.g. sd_dif_type3_get_tag() in drivers/scsi/sd_dif.c. Bart. -- 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