From patchwork Tue Sep 10 07:30:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UGV0ZXIgV2FuZyAo546L5L+h5Y+LKQ==?= X-Patchwork-Id: 827681 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (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 5149117DE06; Tue, 10 Sep 2024 07:30:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.61.82.184 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725953453; cv=none; b=e0ZZ/q7CpIfkP+qV8jNCh66w8x+QiW70YFeXzutMteg+nOIDE9deTbq8U4i4hlIqNax+oGI5Eflmw4l7Nw0Vx3ioKwG+lE22QI7OWSbiq3WS3hoZDbv/Yp6xh+OzZpemDFQKgD7XlOiYRoqYwSNTd0a/OCkTx5I8WhGlPf5Xi74= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725953453; c=relaxed/simple; bh=3xVszixAw0Ibg8n5AJhYz5UfRwnQDctJFD1JDNxEm3k=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Je1f7gkZHDyBsb4vpxOorCHj8nXWkMqCOUZmNvjVSceL+SknGtQ2pZSKu4in1aUcgVT2BOsBjgn28u2mg0tJMflYb0U1N/6kzywKrL2qvrxNxN2BMUAYLzqoyPt45OpuZ5U6dEC76YKAIAOafdef9nZbSfd5A6hjSha1G738lrE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=fCry6jnP; arc=none smtp.client-ip=210.61.82.184 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="fCry6jnP" X-UUID: 936d75106f4611ef8b96093e013ec31c-20240910 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=GFgzJm/DxHOLMafqI/d/JsPdRubgO572kyjok06D4fU=; b=fCry6jnPZvjeBM/tQNVMikcA72tY4QagCJgEvP+NwXKtSk5eX4tuXLRDzu96pJiERZsdxmJpG0Fd81DW1rZf5wIG1Ixew4hXiWQ2F5Pt9dlZ0KvtkbXdnEotXiGkJx2vEOKZpbbSwYdaWmSmp4ZAhOLNcMLKO9D7gE2C7yEfkfc=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.41, REQID:5cf66ded-26e9-43b7-bf80-ed02d632ff3b, IP:0, U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-25 X-CID-META: VersionHash:6dc6a47, CLOUDID:db75f8cf-7921-4900-88a1-3aef019a55ce, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES :1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULN X-UUID: 936d75106f4611ef8b96093e013ec31c-20240910 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 263420334; Tue, 10 Sep 2024 15:30:38 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by MTKMBS09N2.mediatek.inc (172.21.101.94) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Tue, 10 Sep 2024 00:30:37 -0700 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Tue, 10 Sep 2024 15:30:37 +0800 From: To: , , , , CC: , , , , , , , , , , , , , , , , , Subject: [PATCH v4 2/2] ufs: core: requeue aborted request Date: Tue, 10 Sep 2024 15:30:35 +0800 Message-ID: <20240910073035.25974-3-peter.wang@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240910073035.25974-1-peter.wang@mediatek.com> References: <20240910073035.25974-1-peter.wang@mediatek.com> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MTK: N From: Peter Wang ufshcd_abort_all froce abort all on-going command and the host will automatically fill in the OCS field of the corresponding response with OCS_ABORTED based on different working modes. MCQ mode: aborts a command using SQ cleanup, The host controller will post a Completion Queue entry with OCS = ABORTED. SDB mode: aborts a command using UTRLCLR. Task Management response which means a Transfer Request was aborted. For these two cases, set a flag to notify SCSI to requeue the command after receiving response with OCS_ABORTED. Fixes: ab248643d3d6 ("scsi: ufs: core: Add error handling for MCQ mode") Cc: stable@vger.kernel.org Signed-off-by: Peter Wang --- drivers/ufs/core/ufshcd.c | 34 +++++++++++++++++++--------------- include/ufs/ufshcd.h | 3 +++ 2 files changed, 22 insertions(+), 15 deletions(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index a6f818cdef0e..615da47c1727 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -3006,6 +3006,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) ufshcd_prepare_lrbp_crypto(scsi_cmd_to_rq(cmd), lrbp); lrbp->req_abort_skip = false; + lrbp->abort_initiated_by_err = false; ufshcd_comp_scsi_upiu(hba, lrbp); @@ -5404,7 +5405,10 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp, } break; case OCS_ABORTED: - result |= DID_ABORT << 16; + if (lrbp->abort_initiated_by_err) + result |= DID_REQUEUE << 16; + else + result |= DID_ABORT << 16; break; case OCS_INVALID_COMMAND_STATUS: result |= DID_REQUEUE << 16; @@ -6471,26 +6475,12 @@ static bool ufshcd_abort_one(struct request *rq, void *priv) struct scsi_device *sdev = cmd->device; struct Scsi_Host *shost = sdev->host; struct ufs_hba *hba = shost_priv(shost); - struct ufshcd_lrb *lrbp = &hba->lrb[tag]; - struct ufs_hw_queue *hwq; - unsigned long flags; *ret = ufshcd_try_to_abort_task(hba, tag); dev_err(hba->dev, "Aborting tag %d / CDB %#02x %s\n", tag, hba->lrb[tag].cmd ? hba->lrb[tag].cmd->cmnd[0] : -1, *ret ? "failed" : "succeeded"); - /* Release cmd in MCQ mode if abort succeeds */ - if (hba->mcq_enabled && (*ret == 0)) { - hwq = ufshcd_mcq_req_to_hwq(hba, scsi_cmd_to_rq(lrbp->cmd)); - if (!hwq) - return 0; - spin_lock_irqsave(&hwq->cq_lock, flags); - if (ufshcd_cmd_inflight(lrbp->cmd)) - ufshcd_release_scsi_cmd(hba, lrbp); - spin_unlock_irqrestore(&hwq->cq_lock, flags); - } - return *ret == 0; } @@ -7561,6 +7551,20 @@ int ufshcd_try_to_abort_task(struct ufs_hba *hba, int tag) goto out; } + /* + * When the host software receives a "FUNCTION COMPLETE", set flag + * to requeue command after receive response with OCS_ABORTED + * SDB mode: UTRLCLR Task Management response which means a Transfer + * Request was aborted. + * MCQ mode: Host will post to CQ with OCS_ABORTED after SQ cleanup + * This flag is set because ufshcd_abort_all forcibly aborts all + * commands, and the host will automatically fill in the OCS field + * of the corresponding response with OCS_ABORTED. + * Therefore, upon receiving this response, it needs to be requeued. + */ + if (!err) + lrbp->abort_initiated_by_err = true; + err = ufshcd_clear_cmd(hba, tag); if (err) dev_err(hba->dev, "%s: Failed clearing cmd at tag %d, err %d\n", diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index 0fd2aebac728..15b357672ca5 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -173,6 +173,8 @@ struct ufs_pm_lvl_states { * @crypto_key_slot: the key slot to use for inline crypto (-1 if none) * @data_unit_num: the data unit number for the first block for inline crypto * @req_abort_skip: skip request abort task flag + * @abort_initiated_by_err: The flag is specifically used to handle aborts + * caused by errors due to host/device communication */ struct ufshcd_lrb { struct utp_transfer_req_desc *utr_descriptor_ptr; @@ -202,6 +204,7 @@ struct ufshcd_lrb { #endif bool req_abort_skip; + bool abort_initiated_by_err; }; /**