From 3bc5b128b9a2efaf5d5e54f2197b2a01d2f79a27 Mon Sep 17 00:00:00 2001
From: Kiwoong Kim <kwmad.kim@samsung.com>
Date: Fri, 21 Jan 2022 14:37:55 +0900
Subject: [PATCH] scsi: ufs: Treat link loss as fatal error
[ Upstream commit c99b9b2301492b665b6e51ba6c06ec362eddcd10 ]
This event is raised when link is lost as specified in UFSHCI spec and that
means communication is not possible. Thus initializing UFS interface needs
to be done.
Make UFS driver considers Link Lost as fatal in the INT_FATAL_ERRORS
mask. This will trigger a host reset whenever a link lost interrupt occurs.
Link: https://lore.kernel.org/r/1642743475-54275-1-git-send-email-kwmad.kim@samsung.com
Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/scsi/ufs/ufshci.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index 6795e1f0e8f8c..1d999228efc85 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -138,7 +138,8 @@ enum {
#define INT_FATAL_ERRORS (DEVICE_FATAL_ERROR |\
CONTROLLER_FATAL_ERROR |\
SYSTEM_BUS_FATAL_ERROR |\
- CRYPTO_ENGINE_FATAL_ERROR)
+ CRYPTO_ENGINE_FATAL_ERROR |\
+ UIC_LINK_LOST)
/* HCS - Host Controller Status 30h */
#define DEVICE_PRESENT 0x1
--
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