[PATCH V2 09/24] aacraid: Added support for read medium error

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This patch processes Raw IO read medium errors.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@xxxxxxxxxxxxx>
Signed-off-by: Dave Carroll <David.Carroll@xxxxxxxxxxxxx>

---
 Changes in  V2:
  None

 drivers/scsi/aacraid/aachba.c  | 10 ++++++++++
 drivers/scsi/aacraid/aacraid.h |  1 +
 2 files changed, 11 insertions(+)

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 48a4336..42baca9 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -62,6 +62,7 @@
 #define SENCODE_END_OF_DATA			0x00
 #define SENCODE_BECOMING_READY			0x04
 #define SENCODE_INIT_CMD_REQUIRED		0x04
+#define SENCODE_UNRECOVERED_READ_ERROR		0x11
 #define SENCODE_PARAM_LIST_LENGTH_ERROR		0x1A
 #define SENCODE_INVALID_COMMAND			0x20
 #define SENCODE_LBA_OUT_OF_RANGE		0x21
@@ -1997,6 +1998,15 @@ static void io_callback(void *context, struct fib * fibptr)
 		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
 			     SCSI_SENSE_BUFFERSIZE));
 		break;
+	case ST_MEDERR:
+		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 |
+			SAM_STAT_CHECK_CONDITION;
+		set_sense(&dev->fsa_dev[cid].sense_data, MEDIUM_ERROR,
+		  SENCODE_UNRECOVERED_READ_ERROR, ASENCODE_NO_SENSE, 0, 0);
+		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
+		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
+			     SCSI_SENSE_BUFFERSIZE));
+		break;
 	default:
 #ifdef AAC_DETAILED_STATUS_INFO
 		printk(KERN_WARNING "io_callback: io failed, status = %d\n",
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index f749215..fb46252 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1462,6 +1462,7 @@ struct aac_dev
 #define		ST_IO		5
 #define		ST_NXIO		6
 #define		ST_E2BIG	7
+#define		ST_MEDERR	8
 #define		ST_ACCES	13
 #define		ST_EXIST	17
 #define		ST_XDEV		18
-- 
2.7.4

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