From patchwork Fri Oct 14 11:45:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anastasia Kovaleva X-Patchwork-Id: 615212 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 1ABEDC43219 for ; Fri, 14 Oct 2022 11:46:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229818AbiJNLqR (ORCPT ); Fri, 14 Oct 2022 07:46:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43018 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229919AbiJNLqM (ORCPT ); Fri, 14 Oct 2022 07:46:12 -0400 Received: from mta-01.yadro.com (mta-02.yadro.com [89.207.88.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B3478103261; Fri, 14 Oct 2022 04:46:07 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 235F441222; Fri, 14 Oct 2022 11:46:06 +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=1665747964; x=1667562365; bh=A4QsxFQVgNYAsqNe8gkYhy6bo ef34sWDk/zUFN2cHCU=; b=TetX88BsURUvf+aYziRL0++8kGb1oQa8UDaH9gywK RHM/+xUerYqsB46YVzeTE3cnuvpzMTkj1TRdOM2tVOkjxVZpiLazOGra/c9jEqml qJuPgKCDIoaVf5v4sNXWB/xqfktLS7cBA7aEEoMWOXP7XUC3sGMdpLqb8GHp+eI1 rw= 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 5crHkRbmNXay; Fri, 14 Oct 2022 14:46:04 +0300 (MSK) Received: from T-EXCH-02.corp.yadro.com (T-EXCH-02.corp.yadro.com [172.17.10.102]) (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 0709B41220; Fri, 14 Oct 2022 14:46:04 +0300 (MSK) Received: from T-EXCH-09.corp.yadro.com (172.17.11.59) by T-EXCH-02.corp.yadro.com (172.17.10.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Fri, 14 Oct 2022 14:46:03 +0300 Received: from localhost (10.199.23.220) by T-EXCH-09.corp.yadro.com (172.17.11.59) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.1118.9; Fri, 14 Oct 2022 14:46:03 +0300 From: Anastasia Kovaleva To: CC: , Subject: [v2,PATCH 1/3] target: core: Send mtl in blocks Date: Fri, 14 Oct 2022 14:45:47 +0300 Message-ID: <20221014114549.32888-2-a.kovaleva@yadro.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221014114549.32888-1-a.kovaleva@yadro.com> References: <20221014114549.32888-1-a.kovaleva@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.199.23.220] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-09.corp.yadro.com (172.17.11.59) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org A MAXIMUM TRANSFER LENGTH value indicates the maximum transfer length in logical blocks that the device server accepts for a single command. Fix function sending the length in sectors instead of blocks. This patch also removes the special casing for fileio in block_size_store since this logic in now unified in spc_emulate_evpd_b0() for all backends. Signed-off-by: Anastasia Kovaleva Reviewed-by: Konstantin Shelekhin Reviewed-by: Dmitriy Bogdanov Reviewed-by: Christoph Hellwig --- drivers/target/target_core_configfs.c | 2 -- drivers/target/target_core_file.c | 1 - drivers/target/target_core_spc.c | 6 +++++- include/target/target_core_base.h | 1 - 4 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 416514c5c7ac..a126ae5dca08 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -1100,8 +1100,6 @@ static ssize_t block_size_store(struct config_item *item, } da->block_size = val; - if (da->max_bytes_per_io) - da->hw_max_sectors = da->max_bytes_per_io / val; pr_debug("dev[%p]: SE Device block_size changed to %u\n", da->da_dev, val); diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 28aa643be5d5..f9aed9fa8ced 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -193,7 +193,6 @@ static int fd_configure_device(struct se_device *dev) } dev->dev_attrib.hw_block_size = fd_dev->fd_block_size; - dev->dev_attrib.max_bytes_per_io = FD_MAX_BYTES; dev->dev_attrib.hw_max_sectors = FD_MAX_BYTES / fd_dev->fd_block_size; dev->dev_attrib.hw_queue_depth = FD_MAX_DEVICE_QUEUE_DEPTH; diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 7cca3b15472b..4ab10437c8a9 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -519,6 +519,7 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) struct se_device *dev = cmd->se_dev; u32 mtl = 0; int have_tp = 0, opt, min; + u32 io_max_blocks; /* * Following spc3r22 section 6.5.3 Block Limits VPD page, when @@ -557,7 +558,10 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) mtl = (cmd->se_tfo->max_data_sg_nents * PAGE_SIZE) / dev->dev_attrib.block_size; } - put_unaligned_be32(min_not_zero(mtl, dev->dev_attrib.hw_max_sectors), &buf[8]); + io_max_blocks = mult_frac(dev->dev_attrib.hw_max_sectors, + dev->dev_attrib.hw_block_size, + dev->dev_attrib.block_size); + put_unaligned_be32(min_not_zero(mtl, io_max_blocks), &buf[8]); /* * Set OPTIMAL TRANSFER LENGTH diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 8c920456edd9..cb7acbbdbcfb 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -709,7 +709,6 @@ struct se_dev_attrib { u32 unmap_granularity; u32 unmap_granularity_alignment; u32 max_write_same_len; - u32 max_bytes_per_io; struct se_device *da_dev; struct config_group da_group; };