From patchwork Sun Mar 24 23:54:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13601083 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 DD6C2189245; Sun, 24 Mar 2024 23:56:19 +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=1711324582; cv=none; b=Apjt4bMBf2uNyAXMZvYkNWNBjc2NiFl5Ho4zSChyiZSbtgZXsb6RCIL0qDVJEhEhaYxIDGXUf5ch2y86G/g1GAQiwbTriVisboGVuO/qgVpTDCBz6GPTb4IK4O/Gbh17M/2SViwEF8nW0xKxJ6MLxEosyurbpKPgIA/o/avBd48= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711324582; c=relaxed/simple; bh=Ke16FWK3CTx3hTqTxP13uL9Dp+Fdso3HRy3JBR8IfGw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=j9QXA4fUs36E4fNa0s8gNgQ4cYLp607oAq3XO2EDYvCxqQcJs+w1R0Pi0t8NrLyDw3UWYmi+xF/FbQLxi57l7Y5Wcy7/kTbAx/YcjhzcU+drcCMuOaGTUPxvYUJdBraer+g666FfY/fbdZSAe+KIleEKbE7i+v1uguCg509hj4o= 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=FgaYvL4R; 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="FgaYvL4R" 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=xL4EmOYh991KWZN2JoTWW1e6ishZxgC6oGRU+OrRqSA=; b=FgaYvL4RdJqJFw6XhIpv6cC9lt X0F6o3jLYU9cnkmfBPU1K+Ooha1uPPiw6jgGCDoByjB9ZgYQd1QCfbydiAMzRZiu3fLsTE0tAhITA KKl7Y1ZOTAUl9iIZ0DEpdsL7dY00EhlPvwRjfL8hXMG/fHIeJTqt2zlUeDknurrzL0iB/yb8DGhyZ d1+6I/540cU1x9/X28ChIO1vwE+jlL6wVj7DEm+1l7NzpiIDZne53L2+lGFEPBB568WKdEejXFu+F hdmPao7HNhm6bRRo4qLFOvT3P0ENmjvrZUkrGOjTmrYG4O3RhpZiX+em2KXbfLNROocbT4g9wxLEY J0XN5ewg==; Received: from [210.13.83.2] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1roXhA-0000000Dzkd-1JEq; Sun, 24 Mar 2024 23:56:08 +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 17/23] usb-storage: switch to using ->device_configure Date: Mon, 25 Mar 2024 07:54:42 +0800 Message-Id: <20240324235448.2039074-18-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-scsi@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 to the ->device_configure method instead of ->slave_configure and update the block limits on the passed in queue_limits instead of using the per-limit accessors. Also use the proper atomic queue limit update helpers and freeze the queue when updating max_hw_sectors from sysfs. Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal --- drivers/usb/storage/scsiglue.c | 36 ++++++++++++++++++++-------------- 1 file changed, 21 insertions(+), 15 deletions(-) diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index eb4ba03e082d89..b31464740f6c86 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -82,7 +82,7 @@ static int slave_alloc (struct scsi_device *sdev) return 0; } -static int slave_configure(struct scsi_device *sdev) +static int device_configure(struct scsi_device *sdev, struct queue_limits *lim) { struct us_data *us = host_to_us(sdev->host); struct device *dev = us->pusb_dev->bus->sysdev; @@ -97,31 +97,28 @@ static int slave_configure(struct scsi_device *sdev) if (us->fflags & US_FL_MAX_SECTORS_MIN) max_sectors = PAGE_SIZE >> 9; - if (queue_max_hw_sectors(sdev->request_queue) > max_sectors) - blk_queue_max_hw_sectors(sdev->request_queue, - max_sectors); + lim->max_hw_sectors = min(lim->max_hw_sectors, max_sectors); } else if (sdev->type == TYPE_TAPE) { /* * Tapes need much higher max_sector limits, so just * raise it to the maximum possible (4 GB / 512) and * let the queue segment size sort out the real limit. */ - blk_queue_max_hw_sectors(sdev->request_queue, 0x7FFFFF); + lim->max_hw_sectors = 0x7FFFFF; } else if (us->pusb_dev->speed >= USB_SPEED_SUPER) { /* * USB3 devices will be limited to 2048 sectors. This gives us * better throughput on most devices. */ - blk_queue_max_hw_sectors(sdev->request_queue, 2048); + lim->max_hw_sectors = 2048; } /* * The max_hw_sectors should be up to maximum size of a mapping for * the device. Otherwise, a DMA API might fail on swiotlb environment. */ - blk_queue_max_hw_sectors(sdev->request_queue, - min_t(size_t, queue_max_hw_sectors(sdev->request_queue), - dma_max_mapping_size(dev) >> SECTOR_SHIFT)); + lim->max_hw_sectors = min_t(size_t, + lim->max_hw_sectors, dma_max_mapping_size(dev) >> SECTOR_SHIFT); /* * We can't put these settings in slave_alloc() because that gets @@ -582,13 +579,22 @@ static ssize_t max_sectors_store(struct device *dev, struct device_attribute *at size_t count) { struct scsi_device *sdev = to_scsi_device(dev); + struct queue_limits lim; unsigned short ms; + int ret; - if (sscanf(buf, "%hu", &ms) > 0) { - blk_queue_max_hw_sectors(sdev->request_queue, ms); - return count; - } - return -EINVAL; + if (sscanf(buf, "%hu", &ms) <= 0) + return -EINVAL; + + blk_mq_freeze_queue(sdev->request_queue); + lim = queue_limits_start_update(sdev->request_queue); + lim.max_hw_sectors = ms; + ret = queue_limits_commit_update(sdev->request_queue, &lim); + blk_mq_unfreeze_queue(sdev->request_queue); + + if (ret) + return ret; + return count; } static DEVICE_ATTR_RW(max_sectors); @@ -626,7 +632,7 @@ static const struct scsi_host_template usb_stor_host_template = { .this_id = -1, .slave_alloc = slave_alloc, - .slave_configure = slave_configure, + .device_configure = device_configure, .target_alloc = target_alloc, /* lots of sg segments can be handled */