From patchwork Tue Apr 9 14:37:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13622718 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 0DFDA4F8A2; Tue, 9 Apr 2024 14:38:26 +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=1712673507; cv=none; b=kMfqy3QK4f7rHzVfWwt8TwaqMPCEx69PCuu4n7w02JgjwwPgTL3QC37UPTIpinBr7CBsEVFYpaJSx65ml3C3Lk98QTYAK3wQV9qbSFjVkcHqsDKMVMFeGDazHEPdOO+L0I7bvjIMyYcAR331AtjdhXp5gFTmPjoVLCYZ2uUFSnc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712673507; c=relaxed/simple; bh=yRs1eQVsx1wupOYoSqjqniNJSBS4MykxallS3OUfDyQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=A3Ct2JTPZCYjDdXnjfeChquP9Ag1s19JscDuBT8ub63UrQ2HTR0i/kdacD8Nn4CIW3EMoF25TpH2HRp70WNIHm/iDIE23lD0Ve2KnZY1/mCSFHXtz/KavsTQYb3UrvJnd28pTeS170o7yg8Uh21NXl5OYmDoZrS2Wl9KofQI4wg= 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=FUcGYsmD; 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="FUcGYsmD" 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=qdBDwRo2V4JX0xyQIJVY7xlxpQCRwPAMUs1DTxBmn+I=; b=FUcGYsmDCWv/1jT+/Lpu8wELyt 8XMYjzJgx8O04fr+KieGerFgNJvla/6klLX+F8bSukZW+/7LyQIL9101+vFNf/nML59/SCrzL34oP aK6lsa/WC5Wn3w4AZ0SRisLf3qhudrWx4+5Jd9cHlIDnbeyaSvX/5BMzOs2DCTuBJyqhp/4xqs0n4 sa5XqLLabqO7LXEl/d9c46qzNU2aONkkeGglM7eG8edC6bYuL5qKEQnq4kl+J/6Rj6/6to0EpxKhq hgBLDaHzz5wODNVyUshRu4poiDDFCFW/RfKpclKaC67+7BmQ2AEnY92TsIjppo5DKtOa2aU654fMj zLYAhxTg==; Received: from 2a02-8389-2341-5b80-39d3-4735-9a3c-88d8.cable.dynamic.v6.surfer.at ([2a02:8389:2341:5b80:39d3:4735:9a3c:88d8] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1ruCc2-00000002Ryy-0swm; Tue, 09 Apr 2024 14:38:15 +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, 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, Hannes Reinecke Subject: [PATCH 09/23] scsi: use the atomic queue limits API in scsi_add_lun Date: Tue, 9 Apr 2024 16:37:34 +0200 Message-Id: <20240409143748.980206-10-hch@lst.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240409143748.980206-1-hch@lst.de> References: <20240409143748.980206-1-hch@lst.de> Precedence: bulk X-Mailing-List: linux-block@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: Bart Van Assche Reviewed-by: John Garry Reviewed-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Johannes Thumshirn --- drivers/scsi/scsi_scan.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 205ab3b3ea89be..1ec4b309af726d 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. @@ -1077,6 +1065,20 @@ 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) { + sdev_printk(KERN_ERR, sdev, "failed to apply queue limits.\n"); + return SCSI_SCAN_NO_RESPONSE; + } + if (sdev->host->hostt->slave_configure) { ret = sdev->host->hostt->slave_configure(sdev); if (ret) {