According to SPC-4, section 4.5.2.1, 252 is the limit of sense data. So
increase the values.
Tested by hacking QEMU to fake virtio-scsi request sense len to 252.
Without this patch the driver stops working immediately when it gets the
request.
Signed-off-by: Fam Zheng <famz@xxxxxxxxxx>
---
include/linux/virtio_scsi.h | 2 +-
include/scsi/scsi_cmnd.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/virtio_scsi.h b/include/linux/virtio_scsi.h
index 4195b97..a437f7f 100644
--- a/include/linux/virtio_scsi.h
+++ b/include/linux/virtio_scsi.h
@@ -28,7 +28,7 @@
#define _LINUX_VIRTIO_SCSI_H
#define VIRTIO_SCSI_CDB_SIZE 32
-#define VIRTIO_SCSI_SENSE_SIZE 96
+#define VIRTIO_SCSI_SENSE_SIZE 252
/* SCSI command request, followed by data-out */
struct virtio_scsi_cmd_req {
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 91558a1..a64dac03 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -104,7 +104,7 @@ struct scsi_cmnd {
struct request *request; /* The command we are
working on */
-#define SCSI_SENSE_BUFFERSIZE 96
+#define SCSI_SENSE_BUFFERSIZE 252
unsigned char *sense_buffer;
/* obtained by REQUEST SENSE when
* CHECK CONDITION is received on original
--
1.9.0
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