Return-Path: X-Sieve: cmu-sieve 2.0 Return-Path: Received: from bache.ece.cmu.edu (BACHE.ECE.CMU.EDU [128.2.129.23]) by ece.cmu.edu (8.11.0/8.10.2) with ESMTP id h4UK0s305691 for ; Fri, 30 May 2003 16:00:54 -0400 (EDT) Received: by bache.ece.cmu.edu (Postfix, from userid 953) id EB30098; Fri, 30 May 2003 16:00:52 -0400 (EDT) Received: from sos.ece.cmu.edu (SOS.ECE.CMU.EDU [128.2.129.27]) by bache.ece.cmu.edu (Postfix) with ESMTP id 26F5F7B; Fri, 30 May 2003 16:00:42 -0400 (EDT) Received: by sos.ece.cmu.edu (Postfix) id 9B5FC89D6; Fri, 30 May 2003 16:00:21 -0400 (EDT) Received: from hazard.ece.cmu.edu (HAZARD.ECE.CMU.EDU [128.2.129.24]) by sos.ece.cmu.edu (Postfix) with ESMTP id 8A9EC8950 for ; Fri, 30 May 2003 16:00:21 -0400 (EDT) Received: by hazard.ece.cmu.edu (Postfix) id 5BEBE7A; Fri, 30 May 2003 16:00:21 -0400 (EDT) Received: by hazard.ece.cmu.edu (Postfix, from userid 953) id 36E0E82; Fri, 30 May 2003 16:00:21 -0400 (EDT) Received: from sos.ece.cmu.edu (SOS.ECE.CMU.EDU [128.2.129.27]) by hazard.ece.cmu.edu (Postfix) with ESMTP id 9E1BD7A for ; Fri, 30 May 2003 16:00:18 -0400 (EDT) Received: by sos.ece.cmu.edu (Postfix, from userid 363) id 6F58389D7; Fri, 30 May 2003 16:00:18 -0400 (EDT) X-Original-To: ips@sos.ece.cmu.edu Received: from bache.ece.cmu.edu (BACHE.ECE.CMU.EDU [128.2.129.23]) by sos.ece.cmu.edu (Postfix) with ESMTP id 978B68950 for ; Fri, 30 May 2003 16:00:16 -0400 (EDT) Received: by bache.ece.cmu.edu (Postfix) id 124B17B; Fri, 30 May 2003 16:00:16 -0400 (EDT) Delivered-To: ips@ece.cmu.edu Received: by bache.ece.cmu.edu (Postfix, from userid 953) id EB39D82; Fri, 30 May 2003 16:00:15 -0400 (EDT) Received: from mail2.microsoft.com (mail2.microsoft.com [131.107.3.124]) by bache.ece.cmu.edu (Postfix) with ESMTP id 96C797F for ; Fri, 30 May 2003 16:00:12 -0400 (EDT) Received: from INET-VRS-02.redmond.corp.microsoft.com ([157.54.8.110]) by mail2.microsoft.com with Microsoft SMTPSVC(5.0.2195.6624); Fri, 30 May 2003 13:00:08 -0700 Received: from 157.54.8.109 by INET-VRS-02.redmond.corp.microsoft.com (InterScan E-Mail VirusWall NT); Fri, 30 May 2003 13:00:08 -0700 Received: from red-imc-02.redmond.corp.microsoft.com ([157.54.9.107]) by inet-hub-02.redmond.corp.microsoft.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 May 2003 13:00:08 -0700 Received: from win-imc-01.wingroup.windeploy.ntdev.microsoft.com ([157.54.0.39]) by red-imc-02.redmond.corp.microsoft.com with Microsoft SMTPSVC(6.0.3790.0); Fri, 30 May 2003 13:00:07 -0700 Received: from WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com ([157.54.12.81]) by win-imc-01.wingroup.windeploy.ntdev.microsoft.com with Microsoft SMTPSVC(6.0.3788.0); Fri, 30 May 2003 13:00:02 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.5.6940.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="------------InterScan_NT_MIME_Boundary" Subject: iSCSI: Plugging holes in CmdSN Date: Fri, 30 May 2003 12:59:57 -0700 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: iSCSI: Plugging holes in CmdSN Thread-Index: AcMiPHs8uVgggDquQr2Nb0d/nWL+PQEqE/aA From: "Lakshmi Ramasubramanian" To: "Julian Satran" , X-OriginalArrivalTime: 30 May 2003 20:00:02.0253 (UTC) FILETIME=[0E67E7D0:01C326E6] Sender: owner-ips@ece.cmu.edu Precedence: bulk X-Spam-Status: No, hits=-1.2 required=5.0 tests=BAYES_30,HTML_70_80,HTML_FONT_COLOR_BLUE version=2.50 X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 2.50 (1.173-2003-02-20-exp) This is a multi-part message in MIME format. --------------InterScan_NT_MIME_Boundary Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C326E6.0C23ADB7" ------_=_NextPart_001_01C326E6.0C23ADB7 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable If the target detects data digest error in a PDU, and sends Reject the initiator=20 =20 * MAY retry the command with the same CmdSN, TaskTag, etc.=20 =20 * Or, Send a Task Mgmt command to ABORT TASK that task. =20 Target will not advance ExpCmdSN until initiator does something to clear the rejected command. =20 But, can the initiator send a Task Mgmt command with function LU Reset (instead of ABORT TASK) as IMMEDIATE command? Should=20 the target then clear the rejected command and any command that=20 was received after that? And, advance the ExpCmdSN so that initiator can proceed with that session? =20 thanks! -lakshmi =20 =20 ------_=_NextPart_001_01C326E6.0C23ADB7 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
If the target detects data = digest error=20 in a PDU,
and sends Reject the=20 initiator
 
 * MAY retry the = command=20 with the same CmdSN, TaskTag, etc.=20
 
 * Or, Send a Task = Mgmt command to=20 ABORT TASK that task.
 
Target will not=20 advance ExpCmdSN until initiator=20 does something
to clear the = rejected=20 command.
 
But, can the initiator = send a Task Mgmt=20 command with function
LU Reset (instead of ABORT = TASK) as=20 IMMEDIATE command? Should
the target then=20 clear the rejected command and any command that =
was received=20 after that? And, advance the ExpCmdSN so that=20 initiator
can proceed with that=20 session?
 
thanks!
 -lakshmi
 
 
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