From: Paolo Bonzini <pbonz...@redhat.com>
This will let scsi-block/scsi-generic report progress on long
operations.
Reported-by: Thomas Schmitt <scdbac...@gmxbackup.net>
Tested-by: Thomas Schmitt <scdbac...@gmxbackup.net>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
Signed-off-by: Kevin Wolf <kw...@redhat.com>
---
hw/scsi-bus.c | 4 +---
hw/scsi-disk.c | 8 ++++++--
hw/scsi.h | 2 ++
3 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c
index 4d9ff35..3a2a7bb 100644
--- a/hw/scsi-bus.c
+++ b/hw/scsi-bus.c
@@ -9,8 +9,6 @@
static char *scsibus_get_fw_dev_path(DeviceState *dev);
static int scsi_req_parse(SCSICommand *cmd, SCSIDevice *dev, uint8_t *buf);
static void scsi_req_dequeue(SCSIRequest *req);
-static int scsi_build_sense(uint8_t *in_buf, int in_len,
- uint8_t *buf, int len, bool fixed);
static struct BusInfo scsi_bus_info = {
.name = "SCSI",
@@ -502,7 +500,7 @@ SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag,
uint32_t lun,
hba_private);
} else if (lun != d->lun ||
buf[0] == REPORT_LUNS ||
- buf[0] == REQUEST_SENSE) {
+ (buf[0] == REQUEST_SENSE && (d->sense_len || cmd.xfer < 4))) {
req = scsi_req_alloc(&reqops_target_command, d, tag, lun,
hba_private);
} else {
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index 9dd2be8..e3690ec 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -1179,6 +1179,11 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r)
outbuf[7] = 0;
buflen = 8;
break;
+ case REQUEST_SENSE:
+ /* Just return "NO SENSE". */
+ buflen = scsi_build_sense(NULL, 0, outbuf, r->buflen,
+ (req->cmd.buf[1] & 1) == 0);
+ break;
case MECHANISM_STATUS:
buflen = scsi_emulate_mechanism_status(s, outbuf);
if (buflen < 0) {
@@ -1313,6 +1318,7 @@ static int32_t scsi_send_command(SCSIRequest *req,
uint8_t *buf)
case GET_EVENT_STATUS_NOTIFICATION:
case MECHANISM_STATUS:
case SERVICE_ACTION_IN_16:
+ case REQUEST_SENSE:
case VERIFY_10:
rc = scsi_disk_emulate_command(r);
if (rc < 0) {
@@ -1407,8 +1413,6 @@ static int32_t scsi_send_command(SCSIRequest *req,
uint8_t *buf)
}
break;
- case REQUEST_SENSE:
- abort();
default:
DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]);
scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE));
diff --git a/hw/scsi.h b/hw/scsi.h
index ff8fdd0..61c64d5 100644
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -179,6 +179,8 @@ extern const struct SCSISense
sense_code_DEVICE_INTERNAL_RESET;
#define SENSE_CODE(x) sense_code_ ## x
int scsi_sense_valid(SCSISense sense);
+int scsi_build_sense(uint8_t *in_buf, int in_len,
+ uint8_t *buf, int len, bool fixed);
SCSIRequest *scsi_req_alloc(const SCSIReqOps *reqops, SCSIDevice *d,
uint32_t tag, uint32_t lun, void *hba_private);
--
1.7.7.1
