[PATCH v4 33/36] scsi: ses: Have scsi-ml retry scsi_exec_req errors

[Mike Christie <michael.christie@oracle.com>]

This has ses have scsi-ml retry scsi_exec_req errors instead of driving
them itself.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
---
 drivers/scsi/ses.c | 84 ++++++++++++++++++++++++++++------------------
 1 file changed, 52 insertions(+), 32 deletions(-)

diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index c90722aa552c..d8b31c0b0125 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -87,23 +87,33 @@ static int ses_recv_diag(struct scsi_device *sdev, int page_code,
 		0
 	};
 	unsigned char recv_page_code;
-	unsigned int retries = SES_RETRIES;
-	struct scsi_sense_hdr sshdr;
-
-	do {
-		ret = scsi_exec_req(((struct scsi_exec_args) {
-					.sdev = sdev,
-					.cmd = cmd,
-					.data_dir = DMA_FROM_DEVICE,
-					.buf = buf,
-					.buf_len = bufflen,
-					.sshdr = &sshdr,
-					.timeout = SES_TIMEOUT,
-					.retries = 1 }));
-	} while (ret > 0 && --retries && scsi_sense_valid(&sshdr) &&
-		 (sshdr.sense_key == NOT_READY ||
-		  (sshdr.sense_key == UNIT_ATTENTION && sshdr.asc == 0x29)));
+	struct scsi_failure failures[] = {
+		{
+			.sense = UNIT_ATTENTION,
+			.asc = 0x29,
+			.ascq = SCMD_FAILURE_ASCQ_ANY,
+			.allowed = SES_RETRIES,
+			.result = SAM_STAT_CHECK_CONDITION,
+		},
+		{
+			.sense = NOT_READY,
+			.asc = SCMD_FAILURE_ASC_ANY,
+			.ascq = SCMD_FAILURE_ASCQ_ANY,
+			.allowed = SES_RETRIES,
+			.result = SAM_STAT_CHECK_CONDITION,
+		},
+		{},
+	};
 
+	ret = scsi_exec_req(((struct scsi_exec_args) {
+				.sdev = sdev,
+				.cmd = cmd,
+				.data_dir = DMA_FROM_DEVICE,
+				.buf = buf,
+				.buf_len = bufflen,
+				.timeout = SES_TIMEOUT,
+				.retries = 1,
+				.failures = failures }));
 	if (unlikely(ret))
 		return ret;
 
@@ -135,23 +145,33 @@ static int ses_send_diag(struct scsi_device *sdev, int page_code,
 		bufflen & 0xff,
 		0
 	};
-	struct scsi_sense_hdr sshdr;
-	unsigned int retries = SES_RETRIES;
-
-	do {
-		result = scsi_exec_req(((struct scsi_exec_args) {
-						.sdev = sdev,
-						.cmd = cmd,
-						.data_dir = DMA_TO_DEVICE,
-						.buf = buf,
-						.buf_len = bufflen,
-						.sshdr = &sshdr,
-						.timeout = SES_TIMEOUT,
-						.retries = 1 }));
-	} while (result > 0 && --retries && scsi_sense_valid(&sshdr) &&
-		 (sshdr.sense_key == NOT_READY ||
-		  (sshdr.sense_key == UNIT_ATTENTION && sshdr.asc == 0x29)));
+	struct scsi_failure failures[] = {
+		{
+			.sense = UNIT_ATTENTION,
+			.asc = 0x29,
+			.ascq = SCMD_FAILURE_ASCQ_ANY,
+			.allowed = SES_RETRIES,
+			.result = SAM_STAT_CHECK_CONDITION,
+		},
+		{
+			.sense = NOT_READY,
+			.asc = SCMD_FAILURE_ASC_ANY,
+			.ascq = SCMD_FAILURE_ASCQ_ANY,
+			.allowed = SES_RETRIES,
+			.result = SAM_STAT_CHECK_CONDITION,
+		},
+		{},
+	};
 
+	result = scsi_exec_req(((struct scsi_exec_args) {
+					.sdev = sdev,
+					.cmd = cmd,
+					.data_dir = DMA_TO_DEVICE,
+					.buf = buf,
+					.buf_len = bufflen,
+					.timeout = SES_TIMEOUT,
+					.retries = 1,
+					.failures = failures }));
 	if (result)
 		sdev_printk(KERN_ERR, sdev, "SEND DIAGNOSTIC result: %8x\n",
 			    result);
-- 
2.25.1