From patchwork Sun Mar 24 23:54:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13601068 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C6F2A2A2B5C; Sun, 24 Mar 2024 23:55:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711324549; cv=none; b=YgIw9aZa3fB/ElnKbOPyT2q3m9M0b/ZRZOoYzwDbY4GOovUXwyTSkrfLaWY5DB4UC9f0c+ySh7wZ/hFRj8zWzXSTRKu1PNP3zFmyADfDwqk8i60K17QNgJmRDh0aSZMO22dRuvdXGUCGVcfKtRhU2vtJBB/PvwXfHC61Yllauso= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711324549; c=relaxed/simple; bh=LItSflsTIpc3oSfPFr0kTVKSf+cMF4KH1ptylwWgfXU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=nUGVqEafThUhRph9dadxB4VEO1xHOCLBQReJVEKHqf0d0lk4ieL6n0XviQVOyK3Fbmhau+XidPMim/PIOcujr2z/kkwb8zG6RjJG9bA8DlXj3BDwVmba70SkBEEIpnLfrwFjZEv1LH6rFkrmzKQ1d4iBEJxao8d6ll3m4n4tYGU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=XbCc2oME; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="XbCc2oME" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=WXYhCbVwCEU0UHf+sQtOcxTHe5YrehjKDolUaK54+l0=; b=XbCc2oMEJQFyUJsRWtFJXJO4qk Q679u+SL3f1+0VtHHT0u4U34Ha5HX9PqcEhZ+uptBoaUVApbXxL9mh6WM737csu9xD9oNZ0op6k9H GHy8Bif+xRLkICRPQuw0+Smv14r2ujhknZWW/U5NpNgMHqPbpMWFUgM/oTpkI5/NCZiENSHU6NDnk ZJ3ckaD59z2WfQXBw6cbcnzOHWqcEmAVqQrfdnIJGV5mgNm7OEQ/ngfmfu35GHB4xLSLgSZ7vktZ9 XGjnr6+B2sC5hO9DWYebAwdI/q6ma73tpgrSvZxFCw4+5Kx4tp8im1WQoVDOLzlTWotgnDafk+Qkd haYOuUCw==; Received: from [210.13.83.2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1roXge-0000000DzZ6-3X9j; Sun, 24 Mar 2024 23:55:37 +0000 From: Christoph Hellwig To: Jens Axboe , "Martin K. Petersen" Cc: Damien Le Moal , Niklas Cassel , Takashi Sakamoto , Sathya Prakash , Sreekanth Reddy , Suganath Prabu Subramani , "Juergen E. Fischer" , Xiang Chen , HighPoint Linux Team , Tyrel Datwyler , Brian King , Lee Duncan , Chris Leech , Mike Christie , John Garry , Jason Yan , Kashyap Desai , Sumit Saxena , Shivasharan S , Chandrakanth patil , Jack Wang , Nilesh Javali , GR-QLogic-Storage-Upstream@marvell.com, Greg Kroah-Hartman , Alim Akhtar , Avri Altman , Bart Van Assche , Krzysztof Kozlowski , Alan Stern , linux-block@vger.kernel.org, linux-ide@vger.kernel.org, linux1394-devel@lists.sourceforge.net, MPT-FusionLinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, megaraidlinux.pdl@broadcom.com, mpi3mr-linuxdrv.pdl@broadcom.com, linux-samsung-soc@vger.kernel.org, linux-usb@vger.kernel.org, usb-storage@lists.one-eyed-alien.net Subject: [PATCH 09/23] scsi: use the atomic queue limits API in scsi_add_lun Date: Mon, 25 Mar 2024 07:54:34 +0800 Message-Id: <20240324235448.2039074-10-hch@lst.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240324235448.2039074-1-hch@lst.de> References: <20240324235448.2039074-1-hch@lst.de> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Switch scsi_add_lun to use the atomic queue limits API to update the max_hw_sectors for devices with quirks. Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal Reviewed-by: Bart Van Assche Reviewed-by: John Garry --- drivers/scsi/scsi_scan.c | 49 ++++++++++++++++++++-------------------- 1 file changed, 24 insertions(+), 25 deletions(-) diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 205ab3b3ea89be..699356d7d17545 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -874,6 +874,7 @@ static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result, static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, blist_flags_t *bflags, int async) { + struct queue_limits lim; int ret; /* @@ -1004,19 +1005,6 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, if (*bflags & BLIST_SELECT_NO_ATN) sdev->select_no_atn = 1; - /* - * Maximum 512 sector transfer length - * broken RA4x00 Compaq Disk Array - */ - if (*bflags & BLIST_MAX_512) - blk_queue_max_hw_sectors(sdev->request_queue, 512); - /* - * Max 1024 sector transfer length for targets that report incorrect - * max/optimal lengths and relied on the old block layer safe default - */ - else if (*bflags & BLIST_MAX_1024) - blk_queue_max_hw_sectors(sdev->request_queue, 1024); - /* * Some devices may not want to have a start command automatically * issued when a device is added. @@ -1077,19 +1065,22 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, transport_configure_device(&sdev->sdev_gendev); + /* + * No need to freeze the queue as it isn't reachable to anyone else yet. + */ + lim = queue_limits_start_update(sdev->request_queue); + if (*bflags & BLIST_MAX_512) + lim.max_hw_sectors = 512; + else if (*bflags & BLIST_MAX_1024) + lim.max_hw_sectors = 1024; + ret = queue_limits_commit_update(sdev->request_queue, &lim); + if (ret) + goto fail; + if (sdev->host->hostt->slave_configure) { ret = sdev->host->hostt->slave_configure(sdev); - if (ret) { - /* - * if LLDD reports slave not present, don't clutter - * console with alloc failure messages - */ - if (ret != -ENXIO) { - sdev_printk(KERN_ERR, sdev, - "failed to configure device\n"); - } - return SCSI_SCAN_NO_RESPONSE; - } + if (ret) + goto fail; /* * The queue_depth is often changed in ->slave_configure. @@ -1115,8 +1106,16 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, */ if (!async && scsi_sysfs_add_sdev(sdev) != 0) return SCSI_SCAN_NO_RESPONSE; - return SCSI_SCAN_LUN_PRESENT; + +fail: + /* + * If the LLDD reports LU not present, don't clutter the console with + * alloc failure messages. + */ + if (ret != -ENXIO) + sdev_printk(KERN_ERR, sdev, "failed to configure device\n"); + return SCSI_SCAN_NO_RESPONSE; } #ifdef CONFIG_SCSI_LOGGING