From folkert@vanheusden.com Wed Feb 2 06:10:30 2011 Return-Path: X-Original-To: ips@core3.amsl.com Delivered-To: ips@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 0C3BB3A6BBF for ; Wed, 2 Feb 2011 06:10:30 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, J_CHICKENPOX_31=0.6] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hY6VWA5wAvqM for ; Wed, 2 Feb 2011 06:10:28 -0800 (PST) Received: from keetweej.vanheusden.com (tunnel947.ipv6.xs4all.nl [IPv6:2001:888:10:3b3::2]) by core3.amsl.com (Postfix) with ESMTP id 5B5E43A6CD2 for ; Wed, 2 Feb 2011 06:10:26 -0800 (PST) Received: from belle.intranet.vanheusden.com (belle.intranet.vanheusden.com [192.168.64.100]) by keetweej.vanheusden.com (Postfix) with ESMTP id 02DD7162E03 for ; Wed, 2 Feb 2011 15:13:41 +0100 (CET) Received: by belle.intranet.vanheusden.com (Postfix, from userid 1000) id D2AC993364; Wed, 2 Feb 2011 15:13:40 +0100 (CET) Date: Wed, 2 Feb 2011 15:13:40 +0100 From: folkert To: ips@ietf.org Message-ID: <20110202141339.GV19602@belle.intranet.vanheusden.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Organization: www.unixexpert.nl X-Chameleon-Return-To: folkert@vanheusden.com X-Xfmail-Return-To: folkert@vanheusden.com X-Phonenumber: +31-6-41278122 X-URL: http://www.vanheusden.com/ X-PGP-KeyID: 1F28D8AE X-GPG-fingerprint: AC89 09CE 41F2 00B4 FCF2 B174 3019 0E8C 1F28 D8AE X-Key: http://pgp.surfnet.nl:11371/pks/lookup?op=get&search=0x1F28D8AE Read-Receipt-To: Reply-By: Sat Jan 15 11:07:06 CET 2011 X-Message-Flag: www.unixexpert.nl User-Agent: Mutt/1.5.18 (2008-05-17) Subject: [Ips] SCSI inquire command & iscsi wrapping X-BeenThere: ips@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IP Storage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Feb 2011 14:10:30 -0000 Hi, I'm struggling to get scsi 0x12 command working in my iSCSI target (which will be an opensource java iSCSI target by the way). I follow the procedure as described at http://en.wikipedia.org/wiki/SCSI_Inquiry_Command If I understand it correctly this is what happens: Now, I receive an PDU with opcode 0x01 (SCSI command). In it, there's the CDB with byte 3 and 4 telling how much extra data (apart from the regular 16 CDB in the PDU) may be send by the target. So as a target, let's say cdb byte 3+4 tell me i can send 'x' bytes. So in the CDB space in the PDU I put a CDB with opcode 12 and byte 3+4 telling how many bytes I want to send. Then, of the next 36 bytes I would want to send (I don't have any vendor specific data), I can add 'x' bytes after the PDU with byte 4 set to MIN(x, 36) - 4. My question now is: am I right? Folkert van Heusden -- ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com From folkert@vanheusden.com Wed Feb 9 09:18:28 2011 Return-Path: X-Original-To: ips@core3.amsl.com Delivered-To: ips@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 68A903A67C2 for ; Wed, 9 Feb 2011 09:18:28 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id IpsLEF+Scq5K for ; Wed, 9 Feb 2011 09:18:27 -0800 (PST) Received: from keetweej.vanheusden.com (tunnel947.ipv6.xs4all.nl [IPv6:2001:888:10:3b3::2]) by core3.amsl.com (Postfix) with ESMTP id 3A6523A67A5 for ; Wed, 9 Feb 2011 09:18:25 -0800 (PST) Received: from belle.intranet.vanheusden.com (belle.intranet.vanheusden.com [192.168.64.100]) by keetweej.vanheusden.com (Postfix) with ESMTP id 81FAE162E0A for ; Wed, 9 Feb 2011 18:18:28 +0100 (CET) Received: by belle.intranet.vanheusden.com (Postfix, from userid 1000) id 5BD7793367; Wed, 9 Feb 2011 18:18:28 +0100 (CET) Date: Wed, 9 Feb 2011 18:18:28 +0100 From: folkert To: ips@ietf.org Message-ID: <20110209171827.GU19602@belle.intranet.vanheusden.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Organization: www.unixexpert.nl X-Chameleon-Return-To: folkert@vanheusden.com X-Xfmail-Return-To: folkert@vanheusden.com X-Phonenumber: +31-6-41278122 X-URL: http://www.vanheusden.com/ X-PGP-KeyID: 1F28D8AE X-GPG-fingerprint: AC89 09CE 41F2 00B4 FCF2 B174 3019 0E8C 1F28 D8AE X-Key: http://pgp.surfnet.nl:11371/pks/lookup?op=get&search=0x1F28D8AE Read-Receipt-To: Reply-By: Sat Jan 15 11:07:06 CET 2011 X-Message-Flag: PGP key-id: 0x1f28d8ae - consider encrypting your e-mail to me with PGP! User-Agent: Mutt/1.5.18 (2008-05-17) Subject: [Ips] iSCSI WRITE (10) X-BeenThere: ips@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IP Storage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Feb 2011 17:18:28 -0000 Hi, Ok I'm a lot further: the whole discovery handshake (including mode sense, inquiries and what not) works find. Small reads/writes work too (the ones with data in the pdu message). Something which is not entirely clear from the RFC is the following: - an initiator sends a 0x05 PDU (data-out) with data to be stored on disk. after processing, the target should send back a 0x21 PDU (scsi response). is that correct? Folkert van Heusden -- ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com From folkert@vanheusden.com Wed Feb 9 09:37:56 2011 Return-Path: X-Original-To: ips@core3.amsl.com Delivered-To: ips@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 2DC553A69D5 for ; Wed, 9 Feb 2011 09:37:56 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.599 X-Spam-Level: X-Spam-Status: No, score=-2.599 tagged_above=-999 required=5 tests=[BAYES_00=-2.599] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id IXnI3NQw9F70 for ; Wed, 9 Feb 2011 09:37:55 -0800 (PST) Received: from keetweej.vanheusden.com (tunnel947.ipv6.xs4all.nl [IPv6:2001:888:10:3b3::2]) by core3.amsl.com (Postfix) with ESMTP id DA0CD3A69D1 for ; Wed, 9 Feb 2011 09:37:53 -0800 (PST) Received: from belle.intranet.vanheusden.com (belle.intranet.vanheusden.com [192.168.64.100]) by keetweej.vanheusden.com (Postfix) with ESMTP id 3B7E1162E11 for ; Wed, 9 Feb 2011 18:38:03 +0100 (CET) Received: by belle.intranet.vanheusden.com (Postfix, from userid 1000) id 08E2B93367; Wed, 9 Feb 2011 18:38:02 +0100 (CET) Date: Wed, 9 Feb 2011 18:38:02 +0100 From: folkert To: ips@ietf.org Message-ID: <20110209173802.GW19602@belle.intranet.vanheusden.com> References: <20110209171827.GU19602@belle.intranet.vanheusden.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110209171827.GU19602@belle.intranet.vanheusden.com> Organization: www.unixexpert.nl X-Chameleon-Return-To: folkert@vanheusden.com X-Xfmail-Return-To: folkert@vanheusden.com X-Phonenumber: +31-6-41278122 X-URL: http://www.vanheusden.com/ X-PGP-KeyID: 1F28D8AE X-GPG-fingerprint: AC89 09CE 41F2 00B4 FCF2 B174 3019 0E8C 1F28 D8AE X-Key: http://pgp.surfnet.nl:11371/pks/lookup?op=get&search=0x1F28D8AE Read-Receipt-To: Reply-By: Sat Jan 15 11:07:06 CET 2011 X-Message-Flag: www.vanheusden.com User-Agent: Mutt/1.5.18 (2008-05-17) Subject: Re: [Ips] iSCSI WRITE (10) X-BeenThere: ips@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IP Storage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Feb 2011 17:37:56 -0000 > Ok I'm a lot further: the whole discovery handshake (including mode > sense, inquiries and what not) works find. Small reads/writes work too > (the ones with data in the pdu message). > > Something which is not entirely clear from the RFC is the following: > - an initiator sends a 0x05 PDU (data-out) with data to be stored on > disk. > after processing, the target should send back a 0x21 PDU (scsi > response). is that correct? Let me elaborate: I -> T PDU 0x01 (scsi request), opcode 0x2a (WRITE 10) T -> I PDU 0x21 (scsi response) more data follows, so I -> T PDU 0x05 (data out) T -> I PDU 0x21 (scsi response, for each data out) Folkert van Heusden -- ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com From Sanjay_Goyal@pmc-sierra.com Sun Feb 13 20:21:05 2011 Return-Path: X-Original-To: ips@core3.amsl.com Delivered-To: ips@core3.amsl.com Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 15CE83A6C48 for ; Sun, 13 Feb 2011 20:21:05 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.288 X-Spam-Level: X-Spam-Status: No, score=-2.288 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HOST_MISMATCH_COM=0.311] Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Nzxd-QAXMbRH for ; Sun, 13 Feb 2011 20:21:04 -0800 (PST) Received: from bby1mta03.pmc-sierra.bc.ca (bby1mta03.pmc-sierra.com [216.241.235.118]) by core3.amsl.com (Postfix) with ESMTP id F24343A6C46 for ; Sun, 13 Feb 2011 20:21:03 -0800 (PST) Received: from bby1mta03.pmc-sierra.bc.ca (localhost.pmc-sierra.bc.ca [127.0.0.1]) by localhost (Postfix) with SMTP id 886EB10700E4; Sun, 13 Feb 2011 19:50:30 -0800 (PST) Received: from bby1exg02.pmc_nt.nt.pmc-sierra.bc.ca (bby1exg02 [216.241.231.167]) by bby1mta03.pmc-sierra.bc.ca (Postfix) with SMTP id 57A9A10700E3; Sun, 13 Feb 2011 19:50:30 -0800 (PST) Received: from BBY1EXM11.pmc_nt.nt.pmc-sierra.bc.ca ([216.241.231.157]) by bby1exg02.pmc_nt.nt.pmc-sierra.bc.ca with Microsoft SMTPSVC(6.0.3790.4675); Sun, 13 Feb 2011 19:50:30 -0800 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Date: Sun, 13 Feb 2011 19:50:27 -0800 Message-ID: In-Reply-To: <20110209173802.GW19602@belle.intranet.vanheusden.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [Ips] iSCSI WRITE (10) Thread-Index: AcvIgB/ldbDqFtIDSMeVXn1iU4gJqQDefxEA References: <20110209171827.GU19602@belle.intranet.vanheusden.com> <20110209173802.GW19602@belle.intranet.vanheusden.com> From: "Sanjay Goyal" To: "folkert" , X-OriginalArrivalTime: 14 Feb 2011 03:50:30.0342 (UTC) FILETIME=[52E87660:01CBCBFA] Subject: Re: [Ips] iSCSI WRITE (10) X-BeenThere: ips@ietf.org X-Mailman-Version: 2.1.9 Precedence: list List-Id: IP Storage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Feb 2011 04:21:05 -0000 Response should be sent once, after all the write data ( I assume it is unsolicited data) is received. I -> T PDU 0x01 (scsi request), opcode 0x2a (WRITE 10) I -> T PDU 0x05 (data out) I -> T PDU 0x05 (data out) ... T -> I PDU 0x21 (scsi response, for each data out) -----Original Message----- From: ips-bounces@ietf.org [mailto:ips-bounces@ietf.org] On Behalf Of folkert Sent: Wednesday, February 09, 2011 11:08 PM To: ips@ietf.org Subject: Re: [Ips] iSCSI WRITE (10) > Ok I'm a lot further: the whole discovery handshake (including mode > sense, inquiries and what not) works find. Small reads/writes work too > (the ones with data in the pdu message). >=20 > Something which is not entirely clear from the RFC is the following: > - an initiator sends a 0x05 PDU (data-out) with data to be stored on > disk. > after processing, the target should send back a 0x21 PDU (scsi > response). is that correct? Let me elaborate: I -> T PDU 0x01 (scsi request), opcode 0x2a (WRITE 10) T -> I PDU 0x21 (scsi response) more data follows, so I -> T PDU 0x05 (data out) T -> I PDU 0x21 (scsi response, for each data out) Folkert van Heusden --=20 ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com _______________________________________________ Ips mailing list Ips@ietf.org https://www.ietf.org/mailman/listinfo/ips