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Sat, 13 Jun 2020 03:04:45 +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, kishon@ti.com, Alim Akhtar Subject: [RESEND PATCH v10 05/10] scsi: ufs: add quirk to fix abnormal ocs fatal error Date: Sat, 13 Jun 2020 08:17:01 +0530 Message-Id: <20200613024706.27975-6-alim.akhtar@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200613024706.27975-1-alim.akhtar@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupkleLIzCtJLcpLzFFi42LZdlhTQzfA6UmcwZfnChYP5m1js3j58yqb xaf1y1gt5h85x2px4WkPm8X58xvYLW5uOcpisenxNVaLy7vmsFnMOL+PyaL7+g42i+XH/zFZ /N+zg91i6dabjA58Hpf7epk8Nq3qZPPYvKTeo+XkfhaPj09vsXj0bVnF6HH8xnYmj8+b5Dza D3QzBXBGcdmkpOZklqUW6dslcGVsOvKDraCdr2L95YvMDYxnuLsYOTkkBEwk5s1eygxiCwns ZpR4fUO/i5ELyP7EKHHi0hdGCOczo8TDz0dYYTru7D7PDJHYxShxcsdhJoj2FiaJrh0FIDab gLbE3elbwOIiAsISR761MYLYzAIvmSR2PQKrERaIkGjd9B5oKAcHi4CqxPT/xSAmr4CNxKP2 IohV8hKrNxwAO45TwFbi4P8FTCBrJQSmckj8/XafBaLIRWJC/w4oW1ji1fEt7BC2lMTnd3vZ QGZKCGRL9OwyhgjXSCyddwyq3F7iwJU5LCAlzAKaEut36UMcySfR+/sJE0Qnr0RHmxBEtapE 87urUJ3SEhO7u6EB4iExa8lxFkgYTGCUmNldOIFRdhbC0AWMjKsYJVMLinPTU4tNCwzzUsv1 ihNzi0vz0vWS83M3MYJTi5bnDsa7Dz7oHWJk4mA8xCjBwawkwiso/jBOiDclsbIqtSg/vqg0 J7X4EKM0B4uSOK/SjzNxQgLpiSWp2ampBalFMFkmDk6pBiaBZyfDTqotigirWnyh2GaDih6P 77WzOpHWGVZB7A4rFE/OuRC55z3nu2s3gx9EVnYLRMvqV7Vs2zR/JvfOgI0nv108tkb2f2ua 85wLZ1lOSSWJWYix9ipeX3Fv6Ztp4fOjrL2vvW9+rzh7isR5iaVXeO9ozto4mXFdbpZAEOck vVsX7u45/Xr1jIcz2y93dZebL5kb9OTuX7/7M/c33NlxbuX/8rwbzhZmte+8uVvDd29JFRSe YMc5sa+YlUsogumtYdTvitMP/NiE3nVWTf/ofrVgcfPJ1qNTTpY9YYlwmRn4eHXun9+VbbXc 6zgqt10L+7JR4GP6QYMJa8Q6JhiXX0o0WqI/8drtKwfS8kQdlFiKMxINtZiLihMByWbfB5wD AAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrDLMWRmVeSWpSXmKPExsWy7bCSvK6/05M4g8cvRC0ezNvGZvHy51U2 i0/rl7FazD9yjtXiwtMeNovz5zewW9zccpTFYtPja6wWl3fNYbOYcX4fk0X39R1sFsuP/2Oy +L9nB7vF0q03GR34PC739TJ5bFrVyeaxeUm9R8vJ/SweH5/eYvHo27KK0eP4je1MHp83yXm0 H+hmCuCM4rJJSc3JLEst0rdL4MrYdOQHW0E7X8X6yxeZGxjPcHcxcnJICJhI3Nl9nrmLkYtD SGAHo8SDVZ/ZIBLSEtc3TmCHsIUlVv57zg5R1MQk8atxDzNIgk1AW+Lu9C1MILYIUNGRb22M IEXMAt+ZJA5MmABWJCwQJvFvyhegBAcHi4CqxPT/xSAmr4CNxKP2Ioj58hKrNxwAq+YUsJU4 +H8B2EghoJLdR3+yTmDkW8DIsIpRMrWgODc9t9iwwCgvtVyvODG3uDQvXS85P3cTIzjAtbR2 MO5Z9UHvECMTB+MhRgkOZiURXkHxh3FCvCmJlVWpRfnxRaU5qcWHGKU5WJTEeb/OWhgnJJCe WJKanZpakFoEk2Xi4JRqYFqwX5vvX9tK7kWpC2PPleQtr2Qtuedi3KGXFhxezyCwxeFD1qMd D9q6xaPbM7p4512Wfv6P8b7bmr3n/tzKXajV/KPKQv99md1lxd0h3RueP70V+SQhfD5HSrqL fnKZo1uNdWRQoXsGb3Htkx/zdL98mfHoS63wn+b560I3ePiVudiYcguturk2aOUMlolBGZpJ W4uvLesT6LUUU7r9ZtsmV1XHTW+EN0f8FCoNN+R9Jpd5NHqhb1pV+YpK8Ze9/ByTol7xXOc5 r/WWU0TMnr3TUP5iTNvqUKPDHUxMX1zj5vG5rXz69uiKw0tO7QlQztxzj3VL1OvHE94sNu/z ZE0u/cISbV9m0j+nk/+QEktxRqKhFnNRcSIA+qeBpN8CAAA= X-CMS-MailID: 20200613030447epcas5p4ef2db2121851bdd251d2fd19b3532bb1 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P X-CMS-RootMailID: 20200613030447epcas5p4ef2db2121851bdd251d2fd19b3532bb1 References: <20200613024706.27975-1-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 Reviewed-by: Avri Altman --- 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 { -- 2.17.1