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Mon, 11 May 2020 11:13:59 +0900 (KST) Received: from epsmtrp1.samsung.com (unknown [182.195.40.13]) by epcas5p2.samsung.com (KnoxPortal) with ESMTPA id 20200511021359epcas5p24f652fd652a7b55c1ba90d01c03e8336~N14vlygp72932329323epcas5p2P; Mon, 11 May 2020 02:13:59 +0000 (GMT) Received: from epsmgms1p2.samsung.com (unknown [182.195.42.42]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20200511021359epsmtrp1dd7e5f81707f209a2fccc300938b48e6~N14vjs64Q0628006280epsmtrp1S; Mon, 11 May 2020 02:13:59 +0000 (GMT) X-AuditID: b6c32a4a-3b1ff70000005c11-04-5eb8b4e7d9b0 Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p2.samsung.com (Symantec Messaging Gateway) with SMTP id A1.64.25866.7E4B8BE5; Mon, 11 May 2020 11:13:59 +0900 (KST) Received: from Jaguar.sa.corp.samsungelectronics.net (unknown [107.108.73.139]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20200511021357epsmtip2f950cf834419353a9dc84e4ee51a79fe~N14te59Y30194601946epsmtip2p; Mon, 11 May 2020 02:13:56 +0000 (GMT) From: Alim Akhtar To: robh@kernel.org Cc: devicetree@vger.kernel.org, linux-scsi@vger.kernel.org, krzk@kernel.org, avri.altman@wdc.com, martin.petersen@oracle.com, kwmad.kim@samsung.com, stanley.chu@mediatek.com, cang@codeaurora.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Alim Akhtar Subject: [PATCH v8 05/10] scsi: ufs: add quirk to fix abnormal ocs fatal error Date: Mon, 11 May 2020 07:30:26 +0530 Message-Id: <20200511020031.25730-6-alim.akhtar@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200511020031.25730-1-alim.akhtar@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpmleLIzCtJLcpLzFFi42LZdlhTQ/f5lh1xBrPbNC0ezNvGZvHy51U2 i0/rl7FazD9yjtXi/PkN7BY3txxlsdj0+BqrxeVdc9gsZpzfx2TRfX0Hm8Xy4/+YLP7v2cFu sXTrTUYHXo/Lfb1MHptWdbJ5bF5S79Fycj+Lx8ent1g8+rasYvT4vEnOo/1AN1MARxSXTUpq TmZZapG+XQJXxsonb5kL2vkq5l0qaGA8w93FyMkhIWAi0bj8NmsXIxeHkMBuRom1V+eyQzif GCVe/drFDOF8ZpTY8v0zK0zLnQ/zGCESuxgldrfsg2ppYZJ4NfUxO0gVm4C2xN3pW5hAbBEB YYkj39oYQWxmgRtMEg9WuoDYwgIBEm13f4JNZRFQlTg0eQZYL6+AjcTZs+eZIbbJS6zecADM 5hSwlZjWsJ0FZJmEQCeHxJ6729khilwkTk9pZISwhSVeHd8CFZeSeNnfBmRzANnZEj27jCHC NRJL5x1jgbDtJQ5cmcMCUsIsoCmxfpc+xJl8Er2/nzBBdPJKdLQJQVSrSjS/uwrVKS0xsbsb GiYeEt8nLIaGyQRGiUfNT9knMMrOQpi6gJFxFaNkakFxbnpqsWmBUV5quV5xYm5xaV66XnJ+ 7iZGcDrR8trB+PDBB71DjEwcjIcYJTiYlUR4l+fuiBPiTUmsrEotyo8vKs1JLT7EKM3BoiTO m9S4JU5IID2xJDU7NbUgtQgmy8TBKdXAtNZ8rdFf/243jQsNyy0T+8MKU9lz4rxcGr2COidP ux4R+UtEXEZis/v9bf7zg9xE/3gvZf+nvkkxclXS2tBnSufXd+YUu1at4f723XvmNOlnFfun Lc+8+27SnnSHndx3hGo4u46si9gopb7wyvfq3GuNSqqcUfJHxWrONc6b9fLKXq3Tf4RT+tlW 694Mkj6/4BODY+vDazeece9+/v/Xwt3bvnyoPmF8ymBFt8J2QZUtLj8K1De4TmwO+/jH8bLW 8V1W6kcnv7h6w9tcpWTN8WMfM26aTfNvMUn9HrU3+alxvl70M2GBNdZ/2RvvBjDse/llIsvz r39db05jXzuRsflLrLVzZpvX9vknGgu2sSixFGckGmoxFxUnAgDR3uHRlgMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrELMWRmVeSWpSXmKPExsWy7bCSvO7zLTviDFYeELR4MG8bm8XLn1fZ LD6tX8ZqMf/IOVaL8+c3sFvc3HKUxWLT42usFpd3zWGzmHF+H5NF9/UdbBbLj/9jsvi/Zwe7 xdKtNxkdeD0u9/UyeWxa1cnmsXlJvUfLyf0sHh+f3mLx6NuyitHj8yY5j/YD3UwBHFFcNimp OZllqUX6dglcGSufvGUuaOermHepoIHxDHcXIyeHhICJxJ0P8xi7GLk4hAR2MErcOP+FESIh LXF94wR2CFtYYuW/5+wQRU1MEndW7wRLsAloS9ydvoUJxBYBKjryrQ2smVngGZPEqYelILaw gJ/E5fPb2EBsFgFViUOTZ4D18grYSJw9e54ZYoG8xOoNB8BsTgFbiWkN21lAbCGgmhmbNrNO YORbwMiwilEytaA4Nz232LDAKC+1XK84Mbe4NC9dLzk/dxMjOJi1tHYw7ln1Qe8QIxMH4yFG CQ5mJRHe5bk74oR4UxIrq1KL8uOLSnNSiw8xSnOwKInzfp21ME5IID2xJDU7NbUgtQgmy8TB KdXAZB7Cuv3p4bWcF1pvGhySKIn40vrh/rTPaQl7lEU1G5wdJk6foJ7h3h4o0M5wS6fASINt 2Rzp+af/S+XHPkl/EP3XhzNUj3XR71SmyzkFf77E9Au+dOTij2YVMTl2bcveu++e6F8/WyQU avB7fa7bfbvdCfZMP8/FXqkwVPd7XWp+scfuvvbSf43ul99aH7mx1FFNZrXv5Bmbw5Zw7miu WqUi+MCq/Y2ORK8u96aZp759clwqc+pehsf63YvFvjhtvSi8YPopDdOwpuy9a/j/v1/D9OP4 b7bDt+I7DsV1LPpwomx2+q6Lf2bEr/j+UcJXfOdKz3jnkxdEPO+zznaq8ne3m3NWpmh11B+7 Vd9bXiqxFGckGmoxFxUnAgASi6fY1QIAAA== X-CMS-MailID: 20200511021359epcas5p24f652fd652a7b55c1ba90d01c03e8336 X-Msg-Generator: CA CMS-TYPE: 105P X-CMS-RootMailID: 20200511021359epcas5p24f652fd652a7b55c1ba90d01c03e8336 References: <20200511020031.25730-1-alim.akhtar@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org From: Kiwoong Kim Some controller like Exynos determines if FATAL ERROR (0x7) in OCS field in UTRD occurs for values other than GOOD (0x0) in STATUS field in response upiu as well as errors that a host controller can't cover. This patch is to prevent from reporting command results in those cases. Reviewed-by: Avri Altman Signed-off-by: Kiwoong Kim Signed-off-by: Alim Akhtar --- drivers/scsi/ufs/ufshcd.c | 6 ++++++ drivers/scsi/ufs/ufshcd.h | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index ba093d0d0942..33ebffa8257d 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4794,6 +4794,12 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) /* overall command status of utrd */ ocs = ufshcd_get_tr_ocs(lrbp); + if (hba->quirks & UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR) { + if (be32_to_cpu(lrbp->ucd_rsp_ptr->header.dword_1) & + MASK_RSP_UPIU_RESULT) + ocs = OCS_SUCCESS; + } + switch (ocs) { case OCS_SUCCESS: result = ufshcd_get_req_rsp(lrbp->ucd_rsp_ptr); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index a9b9ace9fc72..e1d09c2c4302 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -541,6 +541,12 @@ enum ufshcd_quirks { * resolution of the values of PRDTO and PRDTL in UTRD as byte. */ UFSHCD_QUIRK_PRDT_BYTE_GRAN = 1 << 9, + + /* + * This quirk needs to be enabled if the host controller reports + * OCS FATAL ERROR with device error through sense data + */ + UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR = 1 << 10, }; enum ufshcd_caps {