From patchwork Thu Dec 8 10:59:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Niklas Cassel X-Patchwork-Id: 13068264 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 4C6D8C63718 for ; Thu, 8 Dec 2022 11:04:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230267AbiLHLDy (ORCPT ); Thu, 8 Dec 2022 06:03:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230354AbiLHLDB (ORCPT ); Thu, 8 Dec 2022 06:03:01 -0500 Received: from esa3.hgst.iphmx.com (esa3.hgst.iphmx.com [216.71.153.141]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E458A60B68; Thu, 8 Dec 2022 03:01:23 -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=1670497283; x=1702033283; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=mVpZtl2tFg3Ckd5fmjDsooFADqyv2MXcG51EfFVn4Gw=; b=BPmpaQq/ifZP+ee4Ny23HIBuHoAub+7G+rLp+o4TNH2q2DwV+hTQ26tW kNya5xM2CxtHXIMI0swuxJdnTRl2PYCgrdjKjLjKyks1O71C9rpKvl8w/ rXEWqY7hCXd0JLSwAq2QB0uhoLPtM0gCNWY231fQuOUTmf/70uV1yGs6P f31EqwkrfoM4F6YJ3ynvBDPTYLbhnqa3fAoJVYgqw+y+qhoESQiTM2z9L L9+c1HXKSPwq3294cKoOqHp9g5kstNvc+gzhZwdwTbOTOeLBAEt3LUsZl y4iOu/615ssYb/PvRkqf/68UEG/WN+1lQ1f+MiUAikL48XazEyNHsUFXw g==; X-IronPort-AV: E=Sophos;i="5.96,227,1665417600"; d="scan'208";a="223333406" Received: from uls-op-cesaip02.wdc.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 08 Dec 2022 19:01:21 +0800 IronPort-SDR: 0gjqIPQ4dXlP2OlfhqXmsP/xUstL15MpvsoQ6k2M/3d45yBo46cAZkfcAOzzPEcKQEtZqjUX9a LBpuhkfRvm7nV64s2uSXJ7x80eLlALNwqjPvp4ZdGzXnRC8YvpHeKh4VRvtOllRg2dz1bV5uGl 8BxC+Uf2JDNHK9pRQzRQ3IqxpVMO4cMaPMwPt0N3aii7IqZ+T5m+G+onotVvm09SsPt1WZ37BN RSr9BoT948V54mqnZO6CD45qCKGg3Wlzr8wf/0EvcotXTazHShMfRG5JaUUPD8sMU9qY+k79FO B9Q= Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 08 Dec 2022 02:14:06 -0800 IronPort-SDR: uzGC6IonMacszw9EqOqzPuQBHfQnyeh0/tyvolQbsjn5TVv2JgzmstWyo5s6NI47/fXGJi3iUe HEbtAqXdg4Txee4LoMBc7N8rMaN1lS7gtuiXOjMeAbHgyLc41FYJS8k9r05jywuiyMg/bbGv5P dtQZrHbNKh7WJKZ6HMlOdn4xHRsiPDhb1BsC+Ev1/DZH4jUKdNLX09dy5Aon7AmyvG//pU2SkI MyQpNrlu2GKFrKH+h/JP5lzd/OTc5C5jq5B6TNmFAG2iQkI/BeLMxd6z8OrS5ceZ6ReQPrgAQH xqY= WDCIronportException: Internal Received: from dellx5.wdc.com (HELO x1-carbon.cphwdc) ([10.200.210.81]) by uls-op-cesaip01.wdc.com with ESMTP; 08 Dec 2022 03:01:20 -0800 From: Niklas Cassel To: Damien Le Moal Cc: Hannes Reinecke , linux-scsi@vger.kernel.org, Niklas Cassel , linux-ide@vger.kernel.org Subject: [PATCH 16/25] ata: libata: detect support for command duration limits Date: Thu, 8 Dec 2022 11:59:32 +0100 Message-Id: <20221208105947.2399894-17-niklas.cassel@wdc.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221208105947.2399894-1-niklas.cassel@wdc.com> References: <20221208105947.2399894-1-niklas.cassel@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Damien Le Moal Use the supported capabilities identify device data log page to detect if a device supports the command duration limits feature. For devices supporting this feature, set the device flag ATA_DFLAG_CDL. To support scsi-ata translation, retrieve the command duration limits log page 18h and cache this page content using the cdl array added to the ata_device data structure. Co-developed-by: Niklas Cassel Signed-off-by: Niklas Cassel Signed-off-by: Damien Le Moal --- drivers/ata/libata-core.c | 52 ++++++++++++++++++++++++++++++++++++++- drivers/ata/libata-scsi.c | 17 ++++++------- include/linux/ata.h | 5 +++- include/linux/libata.h | 6 ++++- 4 files changed, 68 insertions(+), 12 deletions(-) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 6b03bebcde50..d7a602a8f59e 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2363,6 +2363,54 @@ static void ata_dev_config_trusted(struct ata_device *dev) dev->flags |= ATA_DFLAG_TRUSTED; } +static void ata_dev_config_cdl(struct ata_device *dev) +{ + struct ata_port *ap = dev->link->ap; + unsigned int err_mask; + u64 val; + + if (ata_id_major_version(dev->id) < 12) + goto not_supported; + + if (!ata_log_supported(dev, ATA_LOG_IDENTIFY_DEVICE) || + !ata_identify_page_supported(dev, ATA_LOG_SUPPORTED_CAPABILITIES)) + goto not_supported; + + err_mask = ata_read_log_page(dev, ATA_LOG_IDENTIFY_DEVICE, + ATA_LOG_SUPPORTED_CAPABILITIES, + ap->sector_buf, 1); + if (err_mask) + goto not_supported; + + /* Check Command Duration Limit Supported bits */ + val = get_unaligned_le64(&ap->sector_buf[168]); + if (!(val & BIT_ULL(63)) || !(val & BIT_ULL(0))) + goto not_supported; + + /* Warn the user if command duration guideline is not supported */ + if (!(val & BIT_ULL(1))) + ata_dev_warn(dev, + "Command duration guideline is not supported\n"); + + /* + * Command duration limits is supported: cache the CDL log page 18h + * (command duration descriptors). + */ + err_mask = ata_read_log_page(dev, ATA_LOG_CDL, 0, ap->sector_buf, 1); + if (err_mask) { + ata_dev_warn(dev, "Read Command Duration Limits log failed\n"); + goto not_supported; + } + + memcpy(dev->cdl, ap->sector_buf, ATA_LOG_CDL_SIZE); + dev->flags |= ATA_DFLAG_CDL; + + return; + +not_supported: + dev->flags &= ~ATA_DFLAG_CDL; +} + static int ata_dev_config_lba(struct ata_device *dev) { const u16 *id = dev->id; @@ -2508,12 +2556,13 @@ static void ata_dev_print_features(struct ata_device *dev) return; ata_dev_info(dev, - "Features:%s%s%s%s%s%s\n", + "Features:%s%s%s%s%s%s%s\n", dev->flags & ATA_DFLAG_TRUSTED ? " Trust" : "", dev->flags & ATA_DFLAG_DA ? " Dev-Attention" : "", dev->flags & ATA_DFLAG_DEVSLP ? " Dev-Sleep" : "", dev->flags & ATA_DFLAG_NCQ_SEND_RECV ? " NCQ-sndrcv" : "", dev->flags & ATA_DFLAG_NCQ_PRIO ? " NCQ-prio" : "", + dev->flags & ATA_DFLAG_CDL ? " CDL" : "", dev->cpr_log ? " CPR" : ""); } @@ -2674,6 +2723,7 @@ int ata_dev_configure(struct ata_device *dev) ata_dev_config_zac(dev); ata_dev_config_trusted(dev); ata_dev_config_cpr(dev); + ata_dev_config_cdl(dev); dev->cdb_len = 32; if (print_info) diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 78729fd9fbfd..042c1748815a 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -47,15 +47,14 @@ typedef unsigned int (*ata_xlat_func_t)(struct ata_queued_cmd *qc); static struct ata_device *__ata_scsi_find_dev(struct ata_port *ap, const struct scsi_device *scsidev); -#define RW_RECOVERY_MPAGE 0x1 -#define RW_RECOVERY_MPAGE_LEN 12 -#define CACHE_MPAGE 0x8 -#define CACHE_MPAGE_LEN 20 -#define CONTROL_MPAGE 0xa -#define CONTROL_MPAGE_LEN 12 -#define ALL_MPAGES 0x3f -#define ALL_SUB_MPAGES 0xff - +#define RW_RECOVERY_MPAGE 0x1 +#define RW_RECOVERY_MPAGE_LEN 12 +#define CACHE_MPAGE 0x8 +#define CACHE_MPAGE_LEN 20 +#define CONTROL_MPAGE 0xa +#define CONTROL_MPAGE_LEN 12 +#define ALL_MPAGES 0x3f +#define ALL_SUB_MPAGES 0xff static const u8 def_rw_recovery_mpage[RW_RECOVERY_MPAGE_LEN] = { RW_RECOVERY_MPAGE, diff --git a/include/linux/ata.h b/include/linux/ata.h index 0c18499f60b6..b01e2cebe1fe 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -323,15 +323,18 @@ enum { ATA_LOG_SATA_NCQ = 0x10, ATA_LOG_NCQ_NON_DATA = 0x12, ATA_LOG_NCQ_SEND_RECV = 0x13, + ATA_LOG_CDL = 0x18, + ATA_LOG_CDL_SIZE = ATA_SECT_SIZE, ATA_LOG_IDENTIFY_DEVICE = 0x30, ATA_LOG_CONCURRENT_POSITIONING_RANGES = 0x47, /* Identify device log pages: */ + ATA_LOG_SUPPORTED_CAPABILITIES = 0x03, ATA_LOG_SECURITY = 0x06, ATA_LOG_SATA_SETTINGS = 0x08, ATA_LOG_ZONED_INFORMATION = 0x09, - /* Identify device SATA settings log:*/ + /* Identify device SATA settings log: */ ATA_LOG_DEVSLP_OFFSET = 0x30, ATA_LOG_DEVSLP_SIZE = 0x08, ATA_LOG_DEVSLP_MDAT = 0x00, diff --git a/include/linux/libata.h b/include/linux/libata.h index 3b7f5d9e2f87..2bb8027ae148 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -90,6 +90,7 @@ enum { ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */ ATA_DFLAG_AN = (1 << 7), /* AN configured */ ATA_DFLAG_TRUSTED = (1 << 8), /* device supports trusted send/recv */ + ATA_DFLAG_CDL = (1 << 9), /* supports cmd duration limits */ ATA_DFLAG_DMADIR = (1 << 10), /* device requires DMADIR */ ATA_DFLAG_NCQ_SEND_RECV = (1 << 11), /* device supports NCQ SEND and RECV */ ATA_DFLAG_NCQ_PRIO = (1 << 12), /* device supports NCQ priority */ @@ -114,7 +115,7 @@ enum { ATA_DFLAG_FEATURES_MASK = ATA_DFLAG_TRUSTED | ATA_DFLAG_DA | \ ATA_DFLAG_DEVSLP | ATA_DFLAG_NCQ_SEND_RECV | \ - ATA_DFLAG_NCQ_PRIO, + ATA_DFLAG_NCQ_PRIO | ATA_DFLAG_CDL, ATA_DEV_UNKNOWN = 0, /* unknown device */ ATA_DEV_ATA = 1, /* ATA device */ @@ -707,6 +708,9 @@ struct ata_device { /* Concurrent positioning ranges */ struct ata_cpr_log *cpr_log; + /* Command Duration Limits log support */ + u8 cdl[ATA_LOG_CDL_SIZE]; + /* error history */ int spdn_cnt; /* ering is CLEAR_END, read comment above CLEAR_END */