From patchwork Thu Jul 2 01:43:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Christie X-Patchwork-Id: 11637653 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 020FD6C1 for ; Thu, 2 Jul 2020 01:43:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D6934207D4 for ; Thu, 2 Jul 2020 01:43:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="xfo7z3q6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727956AbgGBBn3 (ORCPT ); Wed, 1 Jul 2020 21:43:29 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:51508 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726038AbgGBBn2 (ORCPT ); Wed, 1 Jul 2020 21:43:28 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0621dQSN154856; Thu, 2 Jul 2020 01:43:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id : in-reply-to : references; s=corp-2020-01-29; bh=CpsW1stTVGUZ4N8Wn5aCehynrUWbuqkaWE2+YbLkY9I=; b=xfo7z3q6I0XOk8gmTjlkK/HOHWOA9AlSUn9IdJczF63oalGTbnjWqa7/4kiUBZkPH+Wf FEkPYYZ2YXWWAtKFh8jTnn5EJbzFzAKXttqGlZrtKaUet3vL8puLzvuw9WEVxOlrhlq2 +Dh2jSe0wRxMpSvB9Dbw0+OwlU4Hr7u+ijq2rTlqe8bw+AKfFYk/w7YhpSw78ubOrLe9 Wff25hjhnBKyqNVGV9WxmbFJmNj+04R0dk/NdmS9lM22j1EOoGrLbDu1LpZZOCM4IOgt bhAZGlMrhlnmCPWTiqh3P1h7IivPRDZxTTFNTiQLSm2zYVE5t4M4yAGMnncxflBXzCHC sQ== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by userp2120.oracle.com with ESMTP id 31wxrndng1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 02 Jul 2020 01:43:25 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0621bpP2181445; Thu, 2 Jul 2020 01:43:24 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userp3030.oracle.com with ESMTP id 31xg204txj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 02 Jul 2020 01:43:24 +0000 Received: from abhmp0007.oracle.com (abhmp0007.oracle.com [141.146.116.13]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 0621hNcq030498; Thu, 2 Jul 2020 01:43:24 GMT Received: from ol2.localdomain (/73.88.28.6) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 02 Jul 2020 01:43:23 +0000 From: Mike Christie To: martin.petersen@oracle.com, bstroesser@ts.fujitsu.com, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org Subject: [PATCH 1/7] target: check enforce_pr_isids during registration Date: Wed, 1 Jul 2020 20:43:17 -0500 Message-Id: <1593654203-12442-2-git-send-email-michael.christie@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1593654203-12442-1-git-send-email-michael.christie@oracle.com> References: <1593654203-12442-1-git-send-email-michael.christie@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9669 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 spamscore=0 phishscore=0 malwarescore=0 mlxlogscore=999 adultscore=0 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2007020009 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9669 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 mlxlogscore=999 priorityscore=1501 impostorscore=0 bulkscore=0 clxscore=1015 malwarescore=0 phishscore=0 adultscore=0 cotscore=-2147483648 lowpriorityscore=0 suspectscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2007020009 Sender: target-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org Move the check for enforce_pr_isids to the registration code where we can fail at the time an initiator tries to register a path without an isid. In its current place in __core_scsi3_locate_pr_reg, it is too late because it can be registered and be reported in PR in commands and it is stuck in this state because we cannot unregister it. Reviewed-by: Hannes Reinecke Reviewed-by: Lee Duncan Signed-off-by: Mike Christie --- drivers/target/target_core_pr.c | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index 91e41cc..293f518 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -1176,15 +1176,6 @@ static struct t10_pr_registration *__core_scsi3_locate_pr_reg( * ISID, then we have found a match. */ if (!pr_reg->isid_present_at_reg) { - /* - * Determine if this SCSI device server requires that - * SCSI Intiatior TransportID w/ ISIDs is enforced - * for fabric modules (iSCSI) requiring them. - */ - if (tpg->se_tpg_tfo->sess_get_initiator_sid != NULL) { - if (dev->dev_attrib.enforce_pr_isids) - continue; - } atomic_inc_mb(&pr_reg->pr_res_holders); spin_unlock(&pr_tmpl->registration_lock); return pr_reg; @@ -1591,10 +1582,25 @@ static void core_scsi3_lunacl_undepend_item(struct se_dev_entry *se_deve) continue; dest_rtpi = tmp_lun->lun_rtpi; + iport_ptr = NULL; i_str = target_parse_pr_out_transport_id(tmp_tpg, ptr, &tid_len, &iport_ptr); if (!i_str) continue; + /* + * Determine if this SCSI device server requires that + * SCSI Intiatior TransportID w/ ISIDs is enforced + * for fabric modules (iSCSI) requiring them. + */ + if (tpg->se_tpg_tfo->sess_get_initiator_sid && + dev->dev_attrib.enforce_pr_isids && + !iport_ptr) { + pr_warn("SPC-PR: enforce_pr_isids is set but a isid has not been sent in the SPEC_I_PT data for %s.", + i_str); + ret = TCM_INVALID_PARAMETER_LIST; + spin_unlock(&dev->se_port_lock); + goto out_unmap; + } atomic_inc_mb(&tmp_tpg->tpg_pr_ref_count); spin_unlock(&dev->se_port_lock);