From patchwork Fri Mar 11 08:40:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Bogdanov X-Patchwork-Id: 12935723 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E651C19F2D for ; Wed, 3 Aug 2022 16:32:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238213AbiHCQcN (ORCPT ); Wed, 3 Aug 2022 12:32:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51270 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237606AbiHCQbd (ORCPT ); Wed, 3 Aug 2022 12:31:33 -0400 Received: from mta-01.yadro.com (mta-02.yadro.com [89.207.88.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3E6416342; Wed, 3 Aug 2022 09:30:15 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id AE436412FE; Wed, 3 Aug 2022 16:30:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yadro.com; h= content-type:content-type:content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:date:subject :subject:from:from:received:received:received:received; s= mta-01; t=1659544212; x=1661358613; bh=EyVD6bNDYi6Hci8/RaMsy90vn T1nj8IM+Qzvs9n7IKU=; b=mdSuoobvPkqdGfO04V80E1BlFFQ6ouwb5erMdDKEw LYDMXPsLI3EExm7o74Vr2WB9QtFgV6sjY4tXdLl6X0TaaDis7gx5dLMJhYkbVoeC gXwrEmyT8P9bxaMx7IdJKVkvPsuPGa0/0lZNOvgslyvKQ8AepbreCVMBEboKA+0N CY= X-Virus-Scanned: amavisd-new at yadro.com Received: from mta-01.yadro.com ([127.0.0.1]) by localhost (mta-01.yadro.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id A8pKwWcY2DeP; Wed, 3 Aug 2022 19:30:12 +0300 (MSK) Received: from T-EXCH-01.corp.yadro.com (t-exch-01.corp.yadro.com [172.17.10.101]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mta-01.yadro.com (Postfix) with ESMTPS id 799334127C; Wed, 3 Aug 2022 19:29:26 +0300 (MSK) Received: from T-EXCH-08.corp.yadro.com (172.17.11.58) by T-EXCH-01.corp.yadro.com (172.17.10.101) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Wed, 3 Aug 2022 19:29:26 +0300 Received: from NB-591.corp.yadro.com (10.199.18.20) by T-EXCH-08.corp.yadro.com (172.17.11.58) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.1118.9; Wed, 3 Aug 2022 19:29:25 +0300 From: Dmitry Bogdanov To: Martin Petersen , CC: , , Dmitry Bogdanov Subject: [RFC PATCH 45/48] target: cluster: add reset cluster function Date: Fri, 11 Mar 2022 11:40:31 +0300 Message-ID: <20220803162857.27770-46-d.bogdanov@yadro.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220803162857.27770-1-d.bogdanov@yadro.com> References: <20220803162857.27770-1-d.bogdanov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.199.18.20] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-08.corp.yadro.com (172.17.11.58) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Introduce `reset' function pointer in target cluster ops. For no cluster case do just clear SCSI2 reservation status. Signed-off-by: Dmitry Bogdanov --- drivers/target/target_core_device.c | 9 +++++++++ drivers/target/target_core_tmr.c | 9 +-------- include/target/target_core_base.h | 1 + 3 files changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 4f36d12d2213..7d0d889961c2 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -802,6 +802,14 @@ static void target_reserve2_nodlm(struct se_device *dev, struct se_session *sess } } +static void target_reset_nodlm(struct se_device *dev) +{ + if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) { + target_release_reservation(dev); + pr_debug("LUN_RESET: SCSI-2 Released reservation\n"); + } +} + const struct target_cluster_ops nodlm_cluster_ops = { .name = "single", .owner = NULL, @@ -813,6 +821,7 @@ const struct target_cluster_ops nodlm_cluster_ops = { .pr_unlock = target_dummy_nodlm, .pr_sync = target_prsync_nodlm, .reserve = target_reserve2_nodlm, + .reset = target_reset_nodlm, }; struct se_device *target_alloc_device(struct se_hba *hba, const char *name) diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index 6984bfa976a4..878401ab8145 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -402,14 +402,7 @@ int core_tmr_lun_reset( { core_local_lun_reset(dev, tmr, NULL, NULL); - /* - * Clear any legacy SPC-2 reservation when called during - * LOGICAL UNIT RESET - */ - if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) { - dev->cl_ops->reserve(dev, NULL); - pr_debug("LUN_RESET: SCSI-2 Released reservation\n"); - } + dev->cl_ops->reset(dev); target_dev_ua_allocate(dev, 0x29, ASCQ_29H_BUS_DEVICE_RESET_FUNCTION_OCCURRED); diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index af3c972c3376..c8900da705b6 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -791,6 +791,7 @@ struct target_cluster_ops { int (*pr_unlock)(struct se_device *dev); int (*pr_sync)(struct se_device *dev, u8 pro_sa); void (*reserve)(struct se_device *dev, struct se_session *sess); + void (*reset)(struct se_device *dev); }; struct se_device {