From patchwork Fri Jun 15 18:23:40 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhu Lingshan X-Patchwork-Id: 10467339 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 CBAA1601C2 for ; Fri, 15 Jun 2018 18:25:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BC91128E3B for ; Fri, 15 Jun 2018 18:25:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B128428E40; Fri, 15 Jun 2018 18:25:46 +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 vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 612CE28E3B for ; Fri, 15 Jun 2018 18:25:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756360AbeFOSZp (ORCPT ); Fri, 15 Jun 2018 14:25:45 -0400 Received: from smtp2.provo.novell.com ([137.65.250.81]:42504 "EHLO smtp2.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756279AbeFOSZo (ORCPT ); Fri, 15 Jun 2018 14:25:44 -0400 Received: from vstart.localdomain (prv-ext-foundry1int.gns.novell.com [137.65.251.240]) by smtp2.provo.novell.com with ESMTP (TLS encrypted); Fri, 15 Jun 2018 12:25:33 -0600 From: Zhu Lingshan To: target-devel@vger.kernel.org, linux-scsi@vger.kernel.org, nab@linux-iscsi.org, mchristi@redhat.com, martin.petersen@oracle.com Cc: hare@suse.de, lduncan@suse.com, ddiss@suse.de, lszhu@suse.de, Zhu Lingshan Subject: [PATCH 31/33] TCMU PR: enable PRO Release for TCMU devices Date: Sat, 16 Jun 2018 02:23:40 +0800 Message-Id: <20180615182342.6239-31-lszhu@suse.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180615182342.6239-1-lszhu@suse.com> References: <20180615182342.6239-1-lszhu@suse.com> Sender: target-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch would enable the passthrough Persist Reservation Release operation routine for TCMU devices. If dev->passthrough_pr is 1, both dev->transport->pr_ops and dev->transport->pr_ops->pr_release are not NULL, core_scsi3_emulate_pro_release() will call dev->transport->pr_ops->pr_release to passthrough PR release request to user space Signed-off-by: Zhu Lingshan --- drivers/target/target_core_pr.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index d47ccbf05679..c668dfb84bf1 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -2554,6 +2554,15 @@ core_scsi3_emulate_pro_release(struct se_cmd *cmd, int type, int scope, struct t10_reservation *pr_tmpl = &dev->t10_pr; sense_reason_t ret = 0; + if (dev->transport->pr_ops && dev->transport->pr_ops->pr_register + && dev->passthrough_pr) { + if (scope != PR_SCOPE_LU_SCOPE) { + pr_err("SPC-3 PR: Illegal SCOPE: 0x%02x\n", scope); + return TCM_INVALID_PARAMETER_LIST; + } + return dev->transport->pr_ops->pr_release(cmd, type, res_key); + } + if (!se_sess || !se_lun) { pr_err("SPC-3 PR: se_sess || struct se_lun is NULL!\n"); return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;