From patchwork Thu Nov 10 03:50:45 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shinichiro Kawasaki X-Patchwork-Id: 13038271 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 62CD5C4332F for ; Thu, 10 Nov 2022 03:51:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232481AbiKJDvL (ORCPT ); Wed, 9 Nov 2022 22:51:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232732AbiKJDu4 (ORCPT ); Wed, 9 Nov 2022 22:50:56 -0500 Received: from esa4.hgst.iphmx.com (esa4.hgst.iphmx.com [216.71.154.42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D39EA3122E for ; Wed, 9 Nov 2022 19:50:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1668052247; x=1699588247; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=Y9J2qK6obDPDGX+Pb4FpsZoX8K1nRGPUZEHjoWG8FVQ=; b=N1h+GJbYGKdCLtXEOtyyHj/vIuMVhH5K0P/xkXxVxeW9Q57c+wdgiOtn 1nG0qidiAVTMHSd55FGXqnIA7TeZMWBrm17xeUjhhOF262/D90RaZZE/0 +S5SxBNqGKJKs99PffbZ9dxYYNou9Pvjm23swOpMZofc7hbSvdUrXrQoq mdWkVwqMb5Ok6oxSgVdyLIGWzC/bLaxhY9Z+UaLcCU86u/GcXE1uJKq13 UYs1XcTSOGohSjj0yHnmfSAwQD4FWlZ/5K1oGmJcjbtrbWAlBswj4yyCT FgmG6NU8+oFT1Fv5NEp1vz0tnIFC2XQpRkiWILM8HWkaV5qeqtCaTv+1/ Q==; X-IronPort-AV: E=Sophos;i="5.96,152,1665417600"; d="scan'208";a="214197389" Received: from uls-op-cesaip01.wdc.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 10 Nov 2022 11:50:47 +0800 IronPort-SDR: Y5MX8JiPhXtFYXWwQ8fLjFiEAOcragz5PDW1wlx0YMWP9mEVeSto2W51W5fVZG4BZDbsCFXkKA Ivi50re+YJL2nZMfI/sxMepihqLjcZOWNa46GqQJE8RDY9lTZqLd8lewoepOqEx2uXn+CBKx/w cj4PaT05SKq+WK1bzOTFRm3aQ/RaMi7xxa1E9oUtlAhJ/uY7bkbp8nn0ifIaa6nfGBAkCHkG46 COkW1C7CNwFgQ5bZ89wNFidfphIU4H0mSlKR7qvJPzA+EmqUVVtNwW1cZb+5Pw8Rm79aRrqwFH Xqo= Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 09 Nov 2022 19:09:50 -0800 IronPort-SDR: EbvhCnoLhYgU0iIDVbW+dHbDwKnkzfWR4M3t9fL30kH5UHNr20rjJe7QDsL1Ij/p3YjYy8yw8Z aBMim9l7cBa5N86q2DrxSiw2q3CpKmN+oQqTwNOAAdNsI4r84e8v1eMotTPXeQZrRNcy02nymV VuFIlW6cdOAZOW6lu3Grk/1DAOKt5sPIjcxirSngI2boCVXfB14ngWUp8tCvPU5AGyNvBCOcQk B4cg+d/Kw5hvGStBPB82yoZb2YrskhEqYyDOwBHIPm+vie+JW6640BUHo42Kwag8EY6WWbnS2q F84= WDCIronportException: Internal Received: from shindev.dhcp.fujisawa.hgst.com (HELO shindev.fujisawa.hgst.com) ([10.149.52.207]) by uls-op-cesaip01.wdc.com with ESMTP; 09 Nov 2022 19:50:47 -0800 From: Shin'ichiro Kawasaki To: linux-scsi@vger.kernel.org, "Martin K . Petersen" Cc: Christoph Hellwig , Damien Le Moal , Dmitry Fomichev , Shin'ichiro Kawasaki Subject: [PATCH v2] scsi: sd: enforce SYNCHRONIZE CACHE (16) on ZBC devices Date: Thu, 10 Nov 2022 12:50:45 +0900 Message-Id: <20221110035045.1633965-1-shinichiro.kawasaki@wdc.com> X-Mailer: git-send-email 2.37.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org ZBC Zoned Block Commands specification mandates SYNCHRONIZE CACHE (16) for host-managed zoned block devices, but does not mandate SYNCHRONIZE CACHE (10). Call SYNCHRONIZE CACHE (16) in place of SYNCHRONIZE CACHE (10) to ensure that the command is always supported. For this purpose, add use_16_for_sync flag to struct scsi_device in same manner as use_16_for_rw flag. To be precise, ZBC does not mandate READ(16), WRITE (16) and SYNCHRONIZE CACHE (16) commands for host-aware zoned block devices. However, modern devices should support the 16 byte commands. Hence, enforce the 16 byte commands on both types of ZBC devices, host-aware and host-managed. Of note is that this patch depends on the libata-scsi fix [1], and should be merged to upstream after it. [1] https://lore.kernel.org/linux-ide/20221107040229.1548793-1-shinichiro.kawasaki@wdc.com/ Signed-off-by: Shin'ichiro Kawasaki Reviewed-by: Damien Le Moal --- Changes from v1: * Dropped the first patch to relax check on host-aware devices * Enforce SYNC 16 command on both host-aware and host-managed devices drivers/scsi/sd.c | 16 ++++++++++++---- drivers/scsi/sd_zbc.c | 3 ++- include/scsi/scsi_device.h | 1 + 3 files changed, 15 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index eb76ba055021..faa2b55d1a21 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1026,8 +1026,13 @@ static blk_status_t sd_setup_flush_cmnd(struct scsi_cmnd *cmd) /* flush requests don't perform I/O, zero the S/G table */ memset(&cmd->sdb, 0, sizeof(cmd->sdb)); - cmd->cmnd[0] = SYNCHRONIZE_CACHE; - cmd->cmd_len = 10; + if (cmd->device->use_16_for_sync) { + cmd->cmnd[0] = SYNCHRONIZE_CACHE_16; + cmd->cmd_len = 16; + } else { + cmd->cmnd[0] = SYNCHRONIZE_CACHE; + cmd->cmd_len = 10; + } cmd->transfersize = 0; cmd->allowed = sdkp->max_retries; @@ -1587,9 +1592,12 @@ static int sd_sync_cache(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr) sshdr = &my_sshdr; for (retries = 3; retries > 0; --retries) { - unsigned char cmd[10] = { 0 }; + unsigned char cmd[16] = { 0 }; - cmd[0] = SYNCHRONIZE_CACHE; + if (sdp->use_16_for_sync) + cmd[0] = SYNCHRONIZE_CACHE_16; + else + cmd[0] = SYNCHRONIZE_CACHE; /* * Leave the rest of the command zero to indicate * flush everything. diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c index bd15624c6322..b163bf936acc 100644 --- a/drivers/scsi/sd_zbc.c +++ b/drivers/scsi/sd_zbc.c @@ -921,9 +921,10 @@ int sd_zbc_read_zones(struct scsi_disk *sdkp, u8 buf[SD_BUF_SIZE]) return 0; } - /* READ16/WRITE16 is mandatory for ZBC disks */ + /* READ16/WRITE16/SYNC16 is mandatory for ZBC devices */ sdkp->device->use_16_for_rw = 1; sdkp->device->use_10_for_rw = 0; + sdkp->device->use_16_for_sync = 1; if (!blk_queue_is_zoned(q)) { /* diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index c36656d8ac6c..afd2986007a4 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -184,6 +184,7 @@ struct scsi_device { unsigned no_report_opcodes:1; /* no REPORT SUPPORTED OPERATION CODES */ unsigned no_write_same:1; /* no WRITE SAME command */ unsigned use_16_for_rw:1; /* Use read/write(16) over read/write(10) */ + unsigned use_16_for_sync:1; /* Use sync (16) over sync (10) */ unsigned skip_ms_page_8:1; /* do not use MODE SENSE page 0x08 */ unsigned skip_ms_page_3f:1; /* do not use MODE SENSE page 0x3f */ unsigned skip_vpd_pages:1; /* do not read VPD pages */