From patchwork Wed Aug 9 20:23:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 13348459 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 E67B2C001B0 for ; Wed, 9 Aug 2023 20:24:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232125AbjHIUYT (ORCPT ); Wed, 9 Aug 2023 16:24:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40304 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234456AbjHIUYO (ORCPT ); Wed, 9 Aug 2023 16:24:14 -0400 Received: from mail-pj1-f49.google.com (mail-pj1-f49.google.com [209.85.216.49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0A2FC213D; Wed, 9 Aug 2023 13:24:05 -0700 (PDT) Received: by mail-pj1-f49.google.com with SMTP id 98e67ed59e1d1-268030e1be7so115886a91.3; Wed, 09 Aug 2023 13:24:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691612644; x=1692217444; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=kSNICLt5izxMPlfJB1Gv3pSOy0XC1d0m6f5mFl3o5Og=; b=I27x2eQpX9QRZBrsOFwF4VPLzVmakpjtbOeriymhFkuleM/vFFV4lgv/W/oP58f0xG /D8dcogoZHF45zROHrxjSPWuNtox6XtrgiJQ7nkC8oFEWfS/FoqaR9fGnbsxtfywca/x 0ggxwQfZrKrMuq9KFmxjPLAFLKBosrFsF8gDzNJRSJxhwb3qOS6sRImiRO/ipyybUIig qd5H+IJjICOguvXNXUsUcuE1e1rqsZduxVZSxuEugbHu0GSmw6M2lejAocQxe5hgW00M 6PhLQwWWGDlvLmxfTi7ZsVu7zqeWYD3aNMj8yI4wV+zC+BXMZn0yBTcSw2wrX7h+j6H9 4HkA== X-Gm-Message-State: AOJu0Yx+bC2MAXJXA0M981bLH5rKj0FbKa9tHqe6lbKW+cizejoV9zak 2nTkwLnC9oaXeHGI2qM5eUc= X-Google-Smtp-Source: AGHT+IHlJqgsFL4e9TZCsmfYgxlgxUqjyBXjL42w4gnyVAAkSamX3FbAbt1d6bIGFJs/jtVRpwsUGw== X-Received: by 2002:a17:90b:1b0c:b0:267:f2f6:586b with SMTP id nu12-20020a17090b1b0c00b00267f2f6586bmr322493pjb.21.1691612644371; Wed, 09 Aug 2023 13:24:04 -0700 (PDT) Received: from bvanassche-glaptop2.roam.corp.google.com ([98.51.102.78]) by smtp.gmail.com with ESMTPSA id gq9-20020a17090b104900b002694da8a9cdsm1868103pjb.48.2023.08.09.13.24.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Aug 2023 13:24:04 -0700 (PDT) From: Bart Van Assche To: Jens Axboe Cc: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, Jaegeuk Kim , Christoph Hellwig , Bart Van Assche , "Martin K . Petersen" , Douglas Gilbert , "James E.J. Bottomley" Subject: [PATCH v7 4/7] scsi: scsi_debug: Support disabling zone write locking Date: Wed, 9 Aug 2023 13:23:45 -0700 Message-ID: <20230809202355.1171455-5-bvanassche@acm.org> X-Mailer: git-send-email 2.41.0.640.ga95def55d0-goog In-Reply-To: <20230809202355.1171455-1-bvanassche@acm.org> References: <20230809202355.1171455-1-bvanassche@acm.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Make it easier to test not using zone write locking by supporting disabling zone write locking in the scsi_debug driver. Cc: Martin K. Petersen Cc: Douglas Gilbert Signed-off-by: Bart Van Assche --- drivers/scsi/scsi_debug.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 9c0af50501f9..22485726c534 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -832,6 +832,7 @@ static int dix_reads; static int dif_errors; /* ZBC global data */ +static bool sdeb_no_zwrl; static bool sdeb_zbc_in_use; /* true for host-aware and host-managed disks */ static int sdeb_zbc_zone_cap_mb; static int sdeb_zbc_zone_size_mb; @@ -5138,9 +5139,13 @@ static struct sdebug_dev_info *find_build_dev_info(struct scsi_device *sdev) static int scsi_debug_slave_alloc(struct scsi_device *sdp) { + struct request_queue *q = sdp->request_queue; + if (sdebug_verbose) pr_info("slave_alloc <%u %u %u %llu>\n", sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); + if (sdeb_no_zwrl) + q->limits.use_zone_write_lock = false; return 0; } @@ -5738,6 +5743,7 @@ module_param_named(ndelay, sdebug_ndelay, int, S_IRUGO | S_IWUSR); module_param_named(no_lun_0, sdebug_no_lun_0, int, S_IRUGO | S_IWUSR); module_param_named(no_rwlock, sdebug_no_rwlock, bool, S_IRUGO | S_IWUSR); module_param_named(no_uld, sdebug_no_uld, int, S_IRUGO); +module_param_named(no_zone_write_lock, sdeb_no_zwrl, bool, S_IRUGO); module_param_named(num_parts, sdebug_num_parts, int, S_IRUGO); module_param_named(num_tgts, sdebug_num_tgts, int, S_IRUGO | S_IWUSR); module_param_named(opt_blks, sdebug_opt_blks, int, S_IRUGO); @@ -5812,6 +5818,8 @@ MODULE_PARM_DESC(ndelay, "response delay in nanoseconds (def=0 -> ignore)"); MODULE_PARM_DESC(no_lun_0, "no LU number 0 (def=0 -> have lun 0)"); MODULE_PARM_DESC(no_rwlock, "don't protect user data reads+writes (def=0)"); MODULE_PARM_DESC(no_uld, "stop ULD (e.g. sd driver) attaching (def=0))"); +MODULE_PARM_DESC(no_zone_write_lock, + "Disable serialization of zoned writes (def=0)"); MODULE_PARM_DESC(num_parts, "number of partitions(def=0)"); MODULE_PARM_DESC(num_tgts, "number of targets per host to simulate(def=1)"); MODULE_PARM_DESC(opt_blks, "optimal transfer length in blocks (def=1024)");