diff options
| author | Can Guo <cang@codeaurora.org> | 2020-08-24 19:07:06 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-09-02 22:49:07 -0400 |
| commit | 2355b66ed20ce442603aadc05b150db7282d8acf (patch) | |
| tree | 1d7b5443782dc0320372c5220c2d104c4c28d888 /drivers/scsi/ufs/ufshci.h | |
| parent | 307348f6ab144bbb625214f46bc88e810591ae65 (diff) | |
scsi: ufs: Handle LINERESET indication in err handler
PA Layer issues a LINERESET to the PHY at the recovery step in the Power
Mode change operation. If it happens during auto or manual hibern8 enter,
even if hibern8 enter succeeds, UFS power mode shall be set to PWM-G1 mode
and kept in that mode after exit from hibern8, leading to bad performance.
Handle the LINERESET in the eh_work by restoring power mode to HS mode
after all pending reqs and tasks are cleared from doorbell.
Link: https://lore.kernel.org/r/1598321228-21093-3-git-send-email-cang@codeaurora.org
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshci.h')
| -rw-r--r-- | drivers/scsi/ufs/ufshci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h index ba31b090f784..6795e1f0e8f8 100644 --- a/drivers/scsi/ufs/ufshci.h +++ b/drivers/scsi/ufs/ufshci.h @@ -171,6 +171,7 @@ enum { #define UIC_PHY_ADAPTER_LAYER_ERROR 0x80000000 #define UIC_PHY_ADAPTER_LAYER_ERROR_CODE_MASK 0x1F #define UIC_PHY_ADAPTER_LAYER_LANE_ERR_MASK 0xF +#define UIC_PHY_ADAPTER_LAYER_GENERIC_ERROR 0x10 /* UECDL - Host UIC Error Code Data Link Layer 3Ch */ #define UIC_DATA_LINK_LAYER_ERROR 0x80000000 |