diff mbox series

[RFC,13/22] scsi: spi: Have scsi-ml retry spi_execute errors

Message ID 20220922100704.753666-14-michael.christie@oracle.com
State New
Headers show
Series Allow scsi_execute users to control retries | expand

Commit Message

Mike Christie Sept. 22, 2022, 10:06 a.m. UTC 
This has spi_execute have scsi-ml retry errors instead of driving them.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
---
 drivers/scsi/scsi_transport_spi.c | 37 +++++++++++++++++--------------
 1 file changed, 20 insertions(+), 17 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index 4f4c2b155da0..4df56ee4eaac 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -109,29 +109,32 @@  static int spi_execute(struct scsi_device *sdev, const void *cmd,
 		       void *buffer, unsigned bufflen,
 		       struct scsi_sense_hdr *sshdr)
 {
-	int i, result;
 	unsigned char sense[SCSI_SENSE_BUFFERSIZE];
 	struct scsi_sense_hdr sshdr_tmp;
+	struct scsi_failure failures[] = {
+		{
+			.sense = UNIT_ATTENTION,
+			.asc = SCMD_FAILURE_ASC_ANY,
+			.ascq = SCMD_FAILURE_ASCQ_ANY,
+			.allowed = DV_RETRIES,
+			.result = SAM_STAT_CHECK_CONDITION,
+		},
+		{},
+	};
 
 	if (!sshdr)
 		sshdr = &sshdr_tmp;
 
-	for(i = 0; i < DV_RETRIES; i++) {
-		/*
-		 * The purpose of the RQF_PM flag below is to bypass the
-		 * SDEV_QUIESCE state.
-		 */
-		result = scsi_execute(sdev, cmd, dir, buffer, bufflen, sense,
-				      sshdr, DV_TIMEOUT, /* retries */ 1,
-				      REQ_FAILFAST_DEV |
-				      REQ_FAILFAST_TRANSPORT |
-				      REQ_FAILFAST_DRIVER,
-				      RQF_PM, NULL, NULL);
-		if (result < 0 || !scsi_sense_valid(sshdr) ||
-		    sshdr->sense_key != UNIT_ATTENTION)
-			break;
-	}
-	return result;
+	/*
+	 * The purpose of the RQF_PM flag below is to bypass the
+	 * SDEV_QUIESCE state.
+	 */
+	return scsi_execute(sdev, cmd, dir, buffer, bufflen, sense,
+			    sshdr, DV_TIMEOUT, /* retries */ 1,
+			    REQ_FAILFAST_DEV |
+			    REQ_FAILFAST_TRANSPORT |
+			    REQ_FAILFAST_DRIVER,
+			    RQF_PM, NULL, failures);
 }
 
 static struct {