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scsi: ufs: Treat link loss as fatal error

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[ 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>
This commit is contained in:
Kiwoong Kim 2022-01-21 14:37:55 +09:00 committed by Greg Kroah-Hartman
parent f0a91d8923
commit 0c8d27c2aa
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/ufs/ufshci.h
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@ -142,7 +142,8 @@ static inline u32 ufshci_version(u32 major, u32 minor)
#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