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authorKiwoong Kim <kwmad.kim@samsung.com>2020-05-28 04:16:53 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2020-06-15 21:04:10 +0300
commitd779a6e90e189f4883ce6f900da02995fb000df5 (patch)
tree5fdcd04eeb41a7707f40c8cb2eb315a71aad6059 /drivers/scsi/ufs/ufshcd.h
parent26f968d7de823ba4974a8f25c8bd8ee2df6ab74b (diff)
downloadlinux-d779a6e90e189f4883ce6f900da02995fb000df5.tar.xz
scsi: ufs: Add quirk to fix abnormal ocs fatal error
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. Link: https://lore.kernel.org/r/20200528011658.71590-6-alim.akhtar@samsung.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.h')
-rw-r--r--drivers/scsi/ufs/ufshcd.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 519a9e82ab95..84842003c7ac 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -543,6 +543,12 @@ 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 {