From patchwork Thu Aug 12 07:50:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 496394 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D54EC43216 for ; Thu, 12 Aug 2021 07:50:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7F02D60FC4 for ; Thu, 12 Aug 2021 07:50:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234830AbhHLHuo (ORCPT ); Thu, 12 Aug 2021 03:50:44 -0400 Received: from esa6.hgst.iphmx.com ([216.71.154.45]:51846 "EHLO esa6.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234835AbhHLHuo (ORCPT ); Thu, 12 Aug 2021 03:50:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1628754620; x=1660290620; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=rhENVR9t5E+3q6WsypqNKv3Sv5M/dUcXWGrLNHz3Cu8=; b=kfTsaG5KGICyY/4D8pxbc+1XLiEs7EldE2v6MVH8ypvb1T5F1aehyBnY PcewsTw6Jivs/zax4q8Dae3wujR6RPfB2mWDwbYySgOZPPYFXSSU/fe7e H6YpuU1geVQY6L8/SWp4SwO7k1SfVR85R+KyCgdAb8D2SyfxvulzfMV+Y VQCzWhbbpkFXjpDprSTLbh+hxpbMDKE47IoLSML/2K34zx0gPQKt74drc X4go7tFaJ0Kg0AWTERiClv7MYmfBUEOxRQb7VW5LOqhf+8+6jlDs6JpYX 9n8U/CHGDI/nhGmbZ94bgXPAivDwoKLrwEgyugHv04BTiS1qFos8hwWFt g==; X-IronPort-AV: E=Sophos;i="5.84,315,1620662400"; d="scan'208";a="177596934" Received: from uls-op-cesaip02.wdc.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 12 Aug 2021 15:50:20 +0800 IronPort-SDR: JLJbVB67WV7LjYoGGN0PlW0gGmrPQSWA/G08R00DNd+CGQ//HGnPS7AwPghX35O7rx8PtKaprY 5qPfG9nZxbxWq0BKryndjGnfU8kj9+kj8M6yjImstT0WPx0V14Q4xB74JiFRVlqjczYY9W6jPe wnyUJm4rwtx6remvGa3CM6Ib2WCJl8CjtoP7wAQBtm3hFVuz8hhw4bTUgsAK7Vtf/rJnz7vEAO GzEIJYPZ7hU/XSwlhfX/Ofc7l9kx5Ddbmu82k+5qsqk/li76MQhpIejr7R4XTC0jcpCK7q6Tan JCqCj96HiH/3mKXOW2vM2LXj Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2021 00:25:48 -0700 IronPort-SDR: Ybz0OWujfIJQNhJbVM+lyGtpEz7f/pFIoCUo632bOvlpuh6BT5C/3wvfI2N8uxXWKpMQMbU2Fh 5QCi7Z7yLJ8Yq6Sw2Vk269evFF2Sm2Ot7q3XLXiHygEkSRX1g4xKLReoHnFWqPWOgq44ZAdv3J A6Y1vfehxWTwP8UJ8y9AqebyjAXXj2G0w7lvBcQ+eTQXDM6eLJNUGRZ4dDuEL6oy70BI+cQvc7 ChTKp5xAMkQmf4nXm+M4L7gLC0zghbOextktNYpuefvk8pMpSTzIDetdmF4dVWrGHGbDvd55lS q2I= WDCIronportException: Internal Received: from washi.fujisawa.hgst.com ([10.149.53.254]) by uls-op-cesaip02.wdc.com with ESMTP; 12 Aug 2021 00:50:18 -0700 From: Damien Le Moal To: Jens Axboe , linux-block@vger.kernel.org, "Martin K . Petersen" , linux-scsi@vger.kernel.org Subject: [PATCH v5 2/5] scsi: sd: add concurrent positioning ranges support Date: Thu, 12 Aug 2021 16:50:12 +0900 Message-Id: <20210812075015.1090959-3-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210812075015.1090959-1-damien.lemoal@wdc.com> References: <20210812075015.1090959-1-damien.lemoal@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Add the sd_read_cpr() function to the sd scsi disk driver to discover if a device has multiple concurrent positioning ranges (i.e. multiple actuators on an HDD). This new function is called from sd_revalidate_disk() and uses the block layer functions blk_alloc_cranges() and blk_queue_set_cranges() to set a device cranges according to the information retrieved from log page B9h, if the device supports it. The format of the Concurrent Positioning Ranges VPD page B9h is defined in section 6.6.6 of SBC-5. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/scsi/sd.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++ drivers/scsi/sd.h | 1 + 2 files changed, 82 insertions(+) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index b8d55af763f9..5480d75f4883 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -3125,6 +3125,86 @@ static void sd_read_security(struct scsi_disk *sdkp, unsigned char *buffer) sdkp->security = 1; } +static inline sector_t sd64_to_sectors(struct scsi_disk *sdkp, u8 *buf) +{ + return logical_to_sectors(sdkp->device, get_unaligned_be64(buf)); +} + +/** + * sd_read_cpr - Query concurrent positioning ranges + * @sdkp: disk to query + */ +static void sd_read_cpr(struct scsi_disk *sdkp) +{ + unsigned char *buffer = NULL; + struct blk_cranges *cr = NULL; + unsigned int nr_cpr = 0; + int i, vpd_len, buf_len = SD_BUF_SIZE; + u8 *desc; + + /* + * We need to have the capacity set first for the block layer to be + * able to check the ranges. + */ + if (sdkp->first_scan) + return; + + if (!sdkp->capacity) + goto out; + + /* + * Concurrent Positioning Ranges VPD: there can be at most 256 ranges, + * leading to a maximum page size of 64 + 256*32 bytes. + */ + buf_len = 64 + 256*32; + buffer = kmalloc(buf_len, GFP_KERNEL); + if (!buffer || scsi_get_vpd_page(sdkp->device, 0xb9, buffer, buf_len)) + goto out; + + /* We must have at least a 64B header and one 32B range descriptor */ + vpd_len = get_unaligned_be16(&buffer[2]) + 3; + if (vpd_len > buf_len || vpd_len < 64 + 32 || (vpd_len & 31)) { + sd_printk(KERN_ERR, sdkp, + "Invalid Concurrent Positioning Ranges VPD page\n"); + goto out; + } + + nr_cpr = (vpd_len - 64) / 32; + if (nr_cpr == 1) { + nr_cpr = 0; + goto out; + } + + cr = disk_alloc_cranges(sdkp->disk, nr_cpr); + if (!cr) { + nr_cpr = 0; + goto out; + } + + desc = &buffer[64]; + for (i = 0; i < nr_cpr; i++, desc += 32) { + if (desc[0] != i) { + sd_printk(KERN_ERR, sdkp, + "Invalid Concurrent Positioning Range number\n"); + nr_cpr = 0; + break; + } + + cr->ranges[i].sector = sd64_to_sectors(sdkp, desc + 8); + cr->ranges[i].nr_sectors = sd64_to_sectors(sdkp, desc + 16); + } + +out: + disk_set_cranges(sdkp->disk, cr); + if (nr_cpr && sdkp->nr_actuators != nr_cpr) { + sd_printk(KERN_NOTICE, sdkp, + "%u concurrent positioning ranges\n", nr_cpr); + sdkp->nr_actuators = nr_cpr; + } + + kfree(buffer); +} + /* * Determine the device's preferred I/O size for reads and writes * unless the reported value is unreasonably small, large, not a @@ -3240,6 +3320,7 @@ static int sd_revalidate_disk(struct gendisk *disk) sd_read_app_tag_own(sdkp, buffer); sd_read_write_same(sdkp, buffer); sd_read_security(sdkp, buffer); + sd_read_cpr(sdkp); } /* diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h index b59136c4125b..2e5932bde43d 100644 --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -106,6 +106,7 @@ struct scsi_disk { u8 protection_type;/* Data Integrity Field */ u8 provisioning_mode; u8 zeroing_mode; + u8 nr_actuators; /* Number of actuators */ unsigned ATO : 1; /* state of disk ATO bit */ unsigned cache_override : 1; /* temp override of WCE,RCD */ unsigned WCE : 1; /* state of disk WCE bit */ From patchwork Thu Aug 12 07:50:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 496393 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DD16C4338F for ; Thu, 12 Aug 2021 07:50:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 700166044F for ; Thu, 12 Aug 2021 07:50:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234843AbhHLHup (ORCPT ); Thu, 12 Aug 2021 03:50:45 -0400 Received: from esa6.hgst.iphmx.com ([216.71.154.45]:51846 "EHLO esa6.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234835AbhHLHup (ORCPT ); Thu, 12 Aug 2021 03:50:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1628754621; x=1660290621; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=Pct8EeEecztMeJWAOQS8KuUpCZvdxSholvmEQ5/zfBM=; b=UeG0GsCb+HHhfIVyfCRghf7pnDeJlyWTiO2ZACAzhFATNW5BHQQxjeCJ F1fQB+cETs7pundjox2KVEdHMuI/MFa4YR5tIuUJc9m/nu3ixK5SX3gdG nPdulztt7kSYEYHx/nif++pdnu65NDWNECOj0Imnzw0G/tsE3jb0QMi+c 5cF05rl+b07yevap1mNGmKRbnA7sKwu/c0o1qebMiTaoMLZniQpNdTT1/ fd52BH1JaBYVDSj4J/KzY8KBsE2DYTlxmkmn6pR+G9S1iCjybLWpg/8UR +9P6eyQmgsd7AKXaNVnORPpH+3/u6gl8EpDv+mFlp32xCw3QPBe96kcEU Q==; X-IronPort-AV: E=Sophos;i="5.84,315,1620662400"; d="scan'208";a="177596936" Received: from uls-op-cesaip02.wdc.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 12 Aug 2021 15:50:21 +0800 IronPort-SDR: q0L6kjlo9RdsWS+rp77jMzT2TvmhbMz0fU5wSxyuMUNKQhEl/N8tRMBeAB8X+pLjY8vQkWBPsI r7hAhJfJayNOW6nmELLRYNsxjgc/C8lrWNIYMhlI443j43LWSoLnKlQ2nf7mLBSrVExZobx1oP 8yHkRIPg3ZBZiFMS5mk3FZ/tv+ajOnIIwJtCVZtxYxZu3SDdlVdrWWc1Fj7hJmhMv5YkgFHxpJ +hQWC1X/5GdjqW+oVsie1Uiejn/LHaFpzCwOKTOJC+m/Dcio8WHJYNywmHhVQt6D2k71IvJPo6 4rmXlAfvgniceaE0GvM3hcUB Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2021 00:25:49 -0700 IronPort-SDR: HLNs5HCR3LeQ+yTMrakLhNuKolu8rZ9M5TSJmFB7sB0Xn9wPoiACZrKtWPAsXVasprFYoLJ2Fa KkoB3bFoJ33/1n4PRfWjwcPGzDLauVRddw72KdZbT7HjKX2BER/+krc7YW1CtFw4yBC+sKl0ao peFw1Y5SYcqfaaXdQGbek2vAVn+pKXzMZaQAJvW95VKbLndbLI9pfyOhqM/G9Ic8LLDWymKRxC 3PN8IZkICFBVIghtiyQRxR7Q2srWkot/4feKJIGlcBl5snF9CoN00lmFXXH/F8SZWDvEeEnxY9 Va8= WDCIronportException: Internal Received: from washi.fujisawa.hgst.com ([10.149.53.254]) by uls-op-cesaip02.wdc.com with ESMTP; 12 Aug 2021 00:50:19 -0700 From: Damien Le Moal To: Jens Axboe , linux-block@vger.kernel.org, "Martin K . Petersen" , linux-scsi@vger.kernel.org Subject: [PATCH v5 3/5] libata: support concurrent positioning ranges log Date: Thu, 12 Aug 2021 16:50:13 +0900 Message-Id: <20210812075015.1090959-4-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210812075015.1090959-1-damien.lemoal@wdc.com> References: <20210812075015.1090959-1-damien.lemoal@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Add support to discover if an ATA device supports the Concurrent Positioning Ranges Log (address 0x47), indicating that the device is capable of seeking to multiple different locations in parallel using multiple actuators serving different LBA ranges. Also add support to translate the concurrent positioning ranges log into its equivalent Concurrent Positioning Ranges VPD page B9h in libata-scsi.c. The format of the Concurrent Positioning Ranges Log is defined in ACS-5 r9. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig --- drivers/ata/libata-core.c | 52 +++++++++++++++++++++++++++++++++++++++ drivers/ata/libata-scsi.c | 48 +++++++++++++++++++++++++++++------- include/linux/ata.h | 1 + include/linux/libata.h | 15 +++++++++++ 4 files changed, 107 insertions(+), 9 deletions(-) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 61c762961ca8..ab3f61ea743e 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2363,6 +2363,57 @@ static void ata_dev_config_trusted(struct ata_device *dev) dev->flags |= ATA_DFLAG_TRUSTED; } +static void ata_dev_config_cpr(struct ata_device *dev) +{ + unsigned int err_mask; + size_t buf_len; + int i, nr_cpr = 0; + struct ata_cpr_log *cpr_log = NULL; + u8 *desc, *buf = NULL; + + if (!ata_identify_page_supported(dev, + ATA_LOG_CONCURRENT_POSITIONING_RANGES)) + goto out; + + /* + * Read IDENTIFY DEVICE data log, page 0x47 + * (concurrent positioning ranges). We can have at most 255 32B range + * descriptors plus a 64B header. + */ + buf_len = (64 + 255 * 32 + 511) & ~511; + buf = kzalloc(buf_len, GFP_KERNEL); + if (!buf) + goto out; + + err_mask = ata_read_log_page(dev, ATA_LOG_IDENTIFY_DEVICE, + ATA_LOG_CONCURRENT_POSITIONING_RANGES, + buf, buf_len >> 9); + if (err_mask) + goto out; + + nr_cpr = buf[0]; + if (!nr_cpr) + goto out; + + cpr_log = kzalloc(struct_size(cpr_log, cpr, nr_cpr), GFP_KERNEL); + if (!cpr_log) + goto out; + + cpr_log->nr_cpr = nr_cpr; + desc = &buf[64]; + for (i = 0; i < nr_cpr; i++, desc += 32) { + cpr_log->cpr[i].num = desc[0]; + cpr_log->cpr[i].num_storage_elements = desc[1]; + cpr_log->cpr[i].start_lba = get_unaligned_le64(&desc[8]); + cpr_log->cpr[i].num_lbas = get_unaligned_le64(&desc[16]); + } + +out: + swap(dev->cpr_log, cpr_log); + kfree(cpr_log); + kfree(buf); +} + /** * ata_dev_configure - Configure the specified ATA/ATAPI device * @dev: Target device to configure @@ -2591,6 +2642,7 @@ int ata_dev_configure(struct ata_device *dev) ata_dev_config_sense_reporting(dev); ata_dev_config_zac(dev); ata_dev_config_trusted(dev); + ata_dev_config_cpr(dev); dev->cdb_len = 32; } diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index b9588c52815d..5cadbb9a8bf2 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1937,7 +1937,7 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf) */ static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf) { - int num_pages; + int i, num_pages = 0; static const u8 pages[] = { 0x00, /* page 0x00, this page */ 0x80, /* page 0x80, unit serial no page */ @@ -1947,13 +1947,17 @@ static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf) 0xb1, /* page 0xb1, block device characteristics page */ 0xb2, /* page 0xb2, thin provisioning page */ 0xb6, /* page 0xb6, zoned block device characteristics */ + 0xb9, /* page 0xb9, concurrent positioning ranges */ }; - num_pages = sizeof(pages); - if (!(args->dev->flags & ATA_DFLAG_ZAC)) - num_pages--; + for (i = 0; i < sizeof(pages); i++) { + if (pages[i] == 0xb6 && + !(args->dev->flags & ATA_DFLAG_ZAC)) + continue; + rbuf[num_pages + 4] = pages[i]; + num_pages++; + } rbuf[3] = num_pages; /* number of supported VPD pages */ - memcpy(rbuf + 4, pages, num_pages); return 0; } @@ -2163,6 +2167,26 @@ static unsigned int ata_scsiop_inq_b6(struct ata_scsi_args *args, u8 *rbuf) return 0; } +static unsigned int ata_scsiop_inq_b9(struct ata_scsi_args *args, u8 *rbuf) +{ + struct ata_cpr_log *cpr_log = args->dev->cpr_log; + u8 *desc = &rbuf[64]; + int i; + + /* SCSI Concurrent Positioning Ranges VPD page: SBC-5 rev 1 or later */ + rbuf[1] = 0xb9; + put_unaligned_be16(64 + (int)cpr_log->nr_cpr * 32 - 4, &rbuf[3]); + + for (i = 0; i < cpr_log->nr_cpr; i++, desc += 32) { + desc[0] = cpr_log->cpr[i].num; + desc[1] = cpr_log->cpr[i].num_storage_elements; + put_unaligned_be64(cpr_log->cpr[i].start_lba, &desc[8]); + put_unaligned_be64(cpr_log->cpr[i].num_lbas, &desc[16]); + } + + return 0; +} + /** * modecpy - Prepare response for MODE SENSE * @dest: output buffer @@ -4162,11 +4186,17 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b2); break; case 0xb6: - if (dev->flags & ATA_DFLAG_ZAC) { + if (dev->flags & ATA_DFLAG_ZAC) ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b6); - break; - } - fallthrough; + else + ata_scsi_set_invalid_field(dev, cmd, 2, 0xff); + break; + case 0xb9: + if (dev->cpr_log) + ata_scsi_rbuf_fill(&args, ata_scsiop_inq_b9); + else + ata_scsi_set_invalid_field(dev, cmd, 2, 0xff); + break; default: ata_scsi_set_invalid_field(dev, cmd, 2, 0xff); break; diff --git a/include/linux/ata.h b/include/linux/ata.h index 1b44f40c7700..199e47e97d64 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -329,6 +329,7 @@ enum { ATA_LOG_SECURITY = 0x06, ATA_LOG_SATA_SETTINGS = 0x08, ATA_LOG_ZONED_INFORMATION = 0x09, + ATA_LOG_CONCURRENT_POSITIONING_RANGES = 0x47, /* Identify device SATA settings log:*/ ATA_LOG_DEVSLP_OFFSET = 0x30, diff --git a/include/linux/libata.h b/include/linux/libata.h index 3fcd24236793..b159a245d88c 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -670,6 +670,18 @@ struct ata_ering { struct ata_ering_entry ring[ATA_ERING_SIZE]; }; +struct ata_cpr { + u8 num; + u8 num_storage_elements; + u64 start_lba; + u64 num_lbas; +}; + +struct ata_cpr_log { + u8 nr_cpr; + struct ata_cpr cpr[]; +}; + struct ata_device { struct ata_link *link; unsigned int devno; /* 0 or 1 */ @@ -729,6 +741,9 @@ struct ata_device { u32 zac_zones_optimal_nonseq; u32 zac_zones_max_open; + /* Concurrent positioning ranges */ + struct ata_cpr_log *cpr_log; + /* error history */ int spdn_cnt; /* ering is CLEAR_END, read comment above CLEAR_END */ From patchwork Thu Aug 12 07:50:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 496392 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 89278C4320A for ; Thu, 12 Aug 2021 07:50:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6CF7960FC4 for ; Thu, 12 Aug 2021 07:50:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234959AbhHLHuu (ORCPT ); Thu, 12 Aug 2021 03:50:50 -0400 Received: from esa6.hgst.iphmx.com ([216.71.154.45]:51846 "EHLO esa6.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234907AbhHLHur (ORCPT ); Thu, 12 Aug 2021 03:50:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1628754623; x=1660290623; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=mhabWCigeMf23LkXW4lJkPoqzA+1/WMbsc4DZ/vq3tw=; b=SZUDLHH6LAGaGeKUER9HVRgAEdsUCFjMxA/LDudnQxEvLf0X4eEnQwwz Tun21mnBuwVSLI4ylQDcdCLXC/QrqwDJWzXeJPBoqbL1bKgGubX5owUvp eMxo/pdS9apGlRVA4bFSO8Y7NfLgkSoPr2Gj1pT6w8161d5gZNbJAgZQB GYHMK5iK0Nv45zS8sN0i24t0NFzf37VsIOBJ7SAIx6zvjizxnzcZKWSUp BrkhkQEvEdKKfmGCxxEy1KTrczLqC8aoGyS7Pvw21Ha1J0ahiso0rZPGY AMmE8pAOWu0vR7wUHh/OVVpSVlnjVERwpTZmvTPCWrCkKNfMzEfGhpDen g==; X-IronPort-AV: E=Sophos;i="5.84,315,1620662400"; d="scan'208";a="177596943" Received: from uls-op-cesaip02.wdc.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 12 Aug 2021 15:50:23 +0800 IronPort-SDR: 0OesJ+fSRYY3cqX0+jeNm7DsMQkidQUVOQSryo271WGxgQG5PNI88B25ftvv8y/XudWhoBKJ66 KyRVME5ajNA7uKdLt1/vh4ap6NslrPlTXUTmhvJAlw6lenk61d9R73GfYuOMXaOr5gdSNaR6/8 V9UCR6KwAXU7mWelm10emiFKORQkdnn+O2TMkdTi8lkcfs9oLAmoF/ZvgZ7MrhcCen8s/6uubD hKVzi5xwrBVPtEurFGYsPfYrqShiLSt+q0l+6d/mHS9JO22AWQ6Rc8HSrDQpEgOAV1omA6CwJV San/67ncuhc1Kfv73DbB/Ew1 Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2021 00:25:52 -0700 IronPort-SDR: Y1Ypfv0yVGZKC3DnoHshu9G/WDLsplaRQrBahece99Kn80KD8XrHeKc7bVYk+yO+l4pwn/bM0/ WrD3ecnXXu7gI46HrGZpwSsPKCRbBhbTAT5BElgs3AQbT9KtOlacMHJ+R3rPJIsXTNpCrUsKv/ cUVk57YcLhsIiAO2S9+BWQXsUvh5aMoCMzMm4KSaUoxyCOv5T61YCLy35a/GKl6ZOOSecQtPLX NF8Q6iTjXCRjykOjSL+3mZpMeAooJwdJO/mrxCZIngdu2XxZMP1uNvxZsMFO4564Gu1idxNYD3 0rA= WDCIronportException: Internal Received: from washi.fujisawa.hgst.com ([10.149.53.254]) by uls-op-cesaip02.wdc.com with ESMTP; 12 Aug 2021 00:50:21 -0700 From: Damien Le Moal To: Jens Axboe , linux-block@vger.kernel.org, "Martin K . Petersen" , linux-scsi@vger.kernel.org Subject: [PATCH v5 5/5] doc: Fix typo in request queue sysfs documentation Date: Thu, 12 Aug 2021 16:50:15 +0900 Message-Id: <20210812075015.1090959-6-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210812075015.1090959-1-damien.lemoal@wdc.com> References: <20210812075015.1090959-1-damien.lemoal@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Fix a typo (are -> as) in the introduction paragraph of Documentation/block/queue-sysfs.rst. Signed-off-by: Damien Le Moal --- Documentation/block/queue-sysfs.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/block/queue-sysfs.rst b/Documentation/block/queue-sysfs.rst index 757609bbb1e2..25f4a768f450 100644 --- a/Documentation/block/queue-sysfs.rst +++ b/Documentation/block/queue-sysfs.rst @@ -4,7 +4,7 @@ Queue sysfs files This text file will detail the queue files that are located in the sysfs tree for each block device. Note that stacked devices typically do not export -any settings, since their queue merely functions are a remapping target. +any settings, since their queue merely functions as a remapping target. These files are the ones found in the /sys/block/xxx/queue/ directory. Files denoted with a RO postfix are readonly and the RW postfix means