From patchwork Wed May 9 14:58:11 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fam Zheng X-Patchwork-Id: 10389715 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B6A5F60318 for ; Wed, 9 May 2018 15:04:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A74D1284F9 for ; Wed, 9 May 2018 15:04:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9BC9C28F99; Wed, 9 May 2018 15:04:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2EDEE284F9 for ; Wed, 9 May 2018 15:04:32 +0000 (UTC) Received: from localhost ([::1]:56991 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fGQdr-0004sG-6M for patchwork-qemu-devel@patchwork.kernel.org; Wed, 09 May 2018 11:04:31 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56777) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fGQYZ-00076e-DD for qemu-devel@nongnu.org; Wed, 09 May 2018 10:59:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fGQYY-0006qQ-I6 for qemu-devel@nongnu.org; Wed, 09 May 2018 10:59:03 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:47776 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fGQYV-0006kz-Rw; Wed, 09 May 2018 10:58:59 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 5700140200A3; Wed, 9 May 2018 14:58:59 +0000 (UTC) Received: from lemon.usersys.redhat.com (ovpn-12-170.pek2.redhat.com [10.72.12.170]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0137ED74B9; Wed, 9 May 2018 14:58:54 +0000 (UTC) From: Fam Zheng To: qemu-devel@nongnu.org Date: Wed, 9 May 2018 22:58:11 +0800 Message-Id: <20180509145815.3330-6-famz@redhat.com> In-Reply-To: <20180509145815.3330-1-famz@redhat.com> References: <20180509145815.3330-1-famz@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Wed, 09 May 2018 14:58:59 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Wed, 09 May 2018 14:58:59 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'famz@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v3 5/9] iscsi: Query and save device designator when opening X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , Stefan Hajnoczi , qemu-block@nongnu.org, Peter Lieven , Max Reitz , Ronnie Sahlberg , Paolo Bonzini Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP The device designator data returned in INQUIRY command will be useful to fill in source/target fields during copy offloading. Do this when connecting to the target and save the data for later use. Signed-off-by: Fam Zheng Reviewed-by: Stefan Hajnoczi --- block/iscsi.c | 41 +++++++++++++++++++++++++++++++++++++++++ include/scsi/constants.h | 2 ++ 2 files changed, 43 insertions(+) diff --git a/block/iscsi.c b/block/iscsi.c index d19ae0e398..5811ff1d51 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -68,6 +68,7 @@ typedef struct IscsiLun { QemuMutex mutex; struct scsi_inquiry_logical_block_provisioning lbp; struct scsi_inquiry_block_limits bl; + struct scsi_inquiry_device_designator *dd; unsigned char *zeroblock; /* The allocmap tracks which clusters (pages) on the iSCSI target are * allocated and which are not. In case a target returns zeros for @@ -1740,6 +1741,30 @@ static QemuOptsList runtime_opts = { }, }; +static void iscsi_save_designator(IscsiLun *lun, + struct scsi_inquiry_device_identification *inq_di) +{ + struct scsi_inquiry_device_designator *desig, *copy = NULL; + + for (desig = inq_di->designators; desig; desig = desig->next) { + if (desig->association || + desig->designator_type > SCSI_DESIGNATOR_TYPE_NAA) { + continue; + } + /* NAA works better than T10 vendor ID based designator. */ + if (!copy || copy->designator_type < desig->designator_type) { + copy = desig; + } + } + if (copy) { + lun->dd = g_new(struct scsi_inquiry_device_designator, 1); + *lun->dd = *copy; + lun->dd->next = NULL; + lun->dd->designator = g_malloc(copy->designator_length); + memcpy(lun->dd->designator, copy->designator, copy->designator_length); + } +} + static int iscsi_open(BlockDriverState *bs, QDict *options, int flags, Error **errp) { @@ -1922,6 +1947,7 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags, struct scsi_task *inq_task; struct scsi_inquiry_logical_block_provisioning *inq_lbp; struct scsi_inquiry_block_limits *inq_bl; + struct scsi_inquiry_device_identification *inq_di; switch (inq_vpd->pages[i]) { case SCSI_INQUIRY_PAGECODE_LOGICAL_BLOCK_PROVISIONING: inq_task = iscsi_do_inquiry(iscsilun->iscsi, iscsilun->lun, 1, @@ -1947,6 +1973,17 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags, sizeof(struct scsi_inquiry_block_limits)); scsi_free_scsi_task(inq_task); break; + case SCSI_INQUIRY_PAGECODE_DEVICE_IDENTIFICATION: + inq_task = iscsi_do_inquiry(iscsilun->iscsi, iscsilun->lun, 1, + SCSI_INQUIRY_PAGECODE_DEVICE_IDENTIFICATION, + (void **) &inq_di, errp); + if (inq_task == NULL) { + ret = -EINVAL; + goto out; + } + iscsi_save_designator(iscsilun, inq_di); + scsi_free_scsi_task(inq_task); + break; default: break; } @@ -2003,6 +2040,10 @@ static void iscsi_close(BlockDriverState *bs) iscsi_logout_sync(iscsi); } iscsi_destroy_context(iscsi); + if (iscsilun->dd) { + g_free(iscsilun->dd->designator); + g_free(iscsilun->dd); + } g_free(iscsilun->zeroblock); iscsi_allocmap_free(iscsilun); qemu_mutex_destroy(&iscsilun->mutex); diff --git a/include/scsi/constants.h b/include/scsi/constants.h index a141dd71f8..54733b7110 100644 --- a/include/scsi/constants.h +++ b/include/scsi/constants.h @@ -311,4 +311,6 @@ #define MMC_PROFILE_HDDVD_RW_DL 0x005A #define MMC_PROFILE_INVALID 0xFFFF +#define IDENT_DESCR_TGT_DESCR 0xE4 + #endif