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* [PATCH] scsi: ufs: introduce a new ufshcd_statea UFSHCD_STATE_EH_SCHEDULED
@ 2016-11-16  3:29 Zang Leigang
  2016-11-16 18:48 ` Subhash Jadavani
  2016-11-17  1:29 ` Martin K. Petersen
  0 siblings, 2 replies; 3+ messages in thread
From: Zang Leigang @ 2016-11-16  3:29 UTC (permalink / raw)
  To: vinholikatti, jejb, martin.petersen, linux-scsi

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);
 		}
 	}
-- 
2.9.3


^ permalink raw reply related	[flat|nested] 3+ messages in thread

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Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2016-11-16  3:29 [PATCH] scsi: ufs: introduce a new ufshcd_statea UFSHCD_STATE_EH_SCHEDULED Zang Leigang
2016-11-16 18:48 ` Subhash Jadavani
2016-11-17  1:29 ` Martin K. Petersen

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