diff mbox

scsi: ufs: introduce a new ufshcd_statea UFSHCD_STATE_EH_SCHEDULED

Message ID 20161116032937.117395-1-zangleigang@hisilicon.com (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Zang Leigang Nov. 16, 2016, 3:29 a.m. UTC
Add a new ufshcd_state, indicats that an err handler may get to run
immediately. Use UFSHCD_STATE_ERROR here looks not literaly correct.

Signed-off-by: Zang Leigang <zangleigang@hisilicon.com>

Comments

subhashj@codeaurora.org Nov. 16, 2016, 6:48 p.m. UTC | #1
On 2016-11-15 19:29, Zang Leigang wrote:
> Add a new ufshcd_state, indicats that an err handler may get to run
> immediately. Use UFSHCD_STATE_ERROR here looks not literaly correct.
> 
> Signed-off-by: Zang Leigang <zangleigang@hisilicon.com>
> 
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index 05c7456..59d4130 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -123,6 +123,7 @@ enum {
>  	UFSHCD_STATE_RESET,
>  	UFSHCD_STATE_ERROR,
>  	UFSHCD_STATE_OPERATIONAL,
> +	UFSHCD_STATE_EH_SCHEDULED,
>  };
> 
>  /* UFSHCD error handling flags */
> @@ -1410,6 +1411,7 @@ static int ufshcd_queuecommand(struct Scsi_Host
> *host, struct scsi_cmnd *cmd)
>  	switch (hba->ufshcd_state) {
>  	case UFSHCD_STATE_OPERATIONAL:
>  		break;
> +	case UFSHCD_STATE_EH_SCHEDULED:
>  	case UFSHCD_STATE_RESET:
>  		err = SCSI_MLQUEUE_HOST_BUSY;
>  		goto out_unlock;
> @@ -4158,7 +4160,7 @@ static void ufshcd_check_errors(struct ufs_hba 
> *hba)
>  			/* block commands from scsi mid-layer */
>  			scsi_block_requests(hba->host);
> 
> -			hba->ufshcd_state = UFSHCD_STATE_ERROR;
> +			hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED;
>  			schedule_work(&hba->eh_work);
>  		}
>  	}


LGTM.
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Martin K. Petersen Nov. 17, 2016, 1:29 a.m. UTC | #2
>>>>> "Zang" == Zang Leigang <zangleigang@hisilicon.com> writes:

Zang> Add a new ufshcd_state, indicats that an err handler may get to
Zang> run immediately. Use UFSHCD_STATE_ERROR here looks not literaly
Zang> correct.

Applied to 4.10/scsi-queue.
diff mbox

Patch

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 05c7456..59d4130 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -123,6 +123,7 @@  enum {
 	UFSHCD_STATE_RESET,
 	UFSHCD_STATE_ERROR,
 	UFSHCD_STATE_OPERATIONAL,
+	UFSHCD_STATE_EH_SCHEDULED,
 };
 
 /* UFSHCD error handling flags */
@@ -1410,6 +1411,7 @@  static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	switch (hba->ufshcd_state) {
 	case UFSHCD_STATE_OPERATIONAL:
 		break;
+	case UFSHCD_STATE_EH_SCHEDULED:
 	case UFSHCD_STATE_RESET:
 		err = SCSI_MLQUEUE_HOST_BUSY;
 		goto out_unlock;
@@ -4158,7 +4160,7 @@  static void ufshcd_check_errors(struct ufs_hba *hba)
 			/* block commands from scsi mid-layer */
 			scsi_block_requests(hba->host);
 
-			hba->ufshcd_state = UFSHCD_STATE_ERROR;
+			hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED;
 			schedule_work(&hba->eh_work);
 		}
 	}