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Sun, 26 Apr 2020 17:42:11 +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 v7 05/10] scsi: ufs: add quirk to fix abnormal ocs fatal error Date: Sun, 26 Apr 2020 23:00:19 +0530 Message-Id: <20200426173024.63069-6-alim.akhtar@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200426173024.63069-1-alim.akhtar@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupnleLIzCtJLcpLzFFi42LZdlhTXffr8aVxBhNP6Fs8mLeNzeLlz6ts Fp/WL2O1mH/kHKvF+fMb2C1ubjnKYrHp8TVWi8u75rBZzDi/j8mi+/oONovlx/8xWfzfs4Pd YunWm4wOvB6X+3qZPDat6mTz2Lyk3qPl5H4Wj49Pb7F49G1ZxejxeZOcR/uBbqYAjigum5TU nMyy1CJ9uwSujFMXdzAWXOetmPastoFxIXcXIyeHhICJRNejW4xdjFwcQgK7GSVaNs9kg3A+ MUrc3bOSFcL5xihxeu5kFpiWRVffQVXtZZRoXPGbCcJpYZLoPHgLrIpNQFvi7vQtTCC2iICw xJFvbYwgNrPADSaJBytdQGxhgQCJBxN62EBsFgFViS1r/rGC2LwCNhIXHi9hhtgmL7F6wwEw m1PAVuLUjF1MEPFODonT7+IhbBeJzrMboOqFJV4d38IOYUtJvOxvA7I5gOxsiZ5dxhDhGoml 845BPWMvceDKHBaQEmYBTYn1u/QhruST6P39hAmik1eio00IolpVovndVahOaYmJ3d2sELaH xJnNW6ChMIFRYtKhVrYJjLKzEKYuYGRcxSiZWlCcm55abFpgnJdarlecmFtcmpeul5yfu4kR nEy0vHcwbjrnc4hRgINRiYeXY/vSOCHWxLLiytxDjBIczEoivDEli+KEeFMSK6tSi/Lji0pz UosPMUpzsCiJ805ivRojJJCeWJKanZpakFoEk2Xi4JRqYPQPXsbi77fnwI91cc90GUt2pAhs sXHtY3T+KurYsf8T50PeO+Zfbh1XWn3j1eQd5auad259bb8951HgyYU/W4zO7px4Zkby7kdC 8oedbCd+ffyKaWeCfK/7o8dqEcUuHy/GfKxs5LWNWP/oqNBNvRDnSYf38fd+KHE2kSwN41zx s1ptZ2y5RYASS3FGoqEWc1FxIgClp2bjIgMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrILMWRmVeSWpSXmKPExsWy7bCSnO7X40vjDD4/4rd4MG8bm8XLn1fZ LD6tX8ZqMf/IOVaL8+c3sFvc3HKUxWLT42usFpd3zWGzmHF+H5NF9/UdbBbLj/9jsvi/Zwe7 xdKtNxkdeD0u9/UyeWxa1cnmsXlJvUfLyf0sHh+f3mLx6NuyitHj8yY5j/YD3UwBHFFcNimp OZllqUX6dglcGacu7mAsuM5bMe1ZbQPjQu4uRk4OCQETiUVX37F1MXJxCAnsZpR4e/49G0RC WuL6xgnsELawxMp/z9khipqYJGa82c8EkmAT0Ja4O30LmC0CVHTkWxsjiM0s8IxJ4tTDUhBb WMBPouXDf2YQm0VAVWLLmn+sIDavgI3EhcdLmCEWyEus3nAAzOYUsJU4NWMX0EwOoGU2EtPX +09g5FvAyLCKUTK1oDg3PbfYsMAwL7Vcrzgxt7g0L10vOT93EyM4lLU0dzBuX/VB7xAjEwfj IUYJDmYlEd6YkkVxQrwpiZVVqUX58UWlOanFhxilOViUxHlvFC6MExJITyxJzU5NLUgtgsky cXBKNTAlLUl58eV5fE3WweRjeyL0F020uThbiaNpeUrppVuOM/6c3OMintHw9ucmO0+NnSo3 5wZ/a2XZ4LBEoszgv1ICa8UyB+8Pib/1brM5O/RzK2ZWcy2ZZ8Gzvuh/eKvez9CszIXOnO9M 8nt8nGOPF4faneL/7Krzt7717Fr+D9/mvTGtdlt1draAWueXh6lKE1WdF2s7Nc9y1fevrTj2 7KHFkXn/76s1b2xMmf/0tnKU9E/XCv+ccw5Fole+T/62OlTd3IxfRvXV8b/zn3y59fP83oCA GwlzP8Rqf/c7M/NQ55OTGp4HK3I+TWydxFzXX/s5/MUM/bo70h41M90Oz/KbbLxt9pxf1jlF QtcPWrUpsRRnJBpqMRcVJwIAZ+voQNQCAAA= X-CMS-MailID: 20200426174213epcas5p3f5b403eafe77d98cbe0b92ccb3fd56b2 X-Msg-Generator: CA CMS-TYPE: 105P X-CMS-RootMailID: 20200426174213epcas5p3f5b403eafe77d98cbe0b92ccb3fd56b2 References: <20200426173024.63069-1-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. 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 {