scsi: move handling of REQUEST SENSE to common code

Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

hw/scsi-bus.c

@@ -270,6 +270,13 @@ static int32_t scsi_target_send_command(SCSIRequest *req, uint8_t *buf)
             goto illegal_request;
         }
         break;
+    case REQUEST_SENSE:
+        if (req->cmd.xfer < 4) {
+            goto illegal_request;
+        }
+        r->len = scsi_device_get_sense(r->req.dev, r->buf, req->cmd.xfer,
+                                       (req->cmd.buf[1] & 1) == 0);
+        break;
     default:
         scsi_req_build_sense(req, SENSE_CODE(LUN_NOT_SUPPORTED));
         scsi_req_complete(req, CHECK_CONDITION);
@@ -351,8 +358,9 @@ SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun,
                                       cmd.lba);
         }
 
-        if ((lun != d->lun && buf[0] != REQUEST_SENSE) ||
-            buf[0] == REPORT_LUNS) {
+        if (lun != d->lun ||
+            buf[0] == REPORT_LUNS ||
+            buf[0] == REQUEST_SENSE) {
             req = scsi_req_alloc(&reqops_target_command, d, tag, lun,
                                  hba_private);
         } else {

hw/scsi-disk.c

@@ -788,12 +788,6 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf)
         if (!bdrv_is_inserted(s->bs))
             goto not_ready;
         break;
-    case REQUEST_SENSE:
-        if (req->cmd.xfer < 4)
-            goto illegal_request;
-        buflen = scsi_device_get_sense(&s->qdev, outbuf, req->cmd.xfer,
-                                       (req->cmd.buf[1] & 1) == 0);
-        break;
     case INQUIRY:
         buflen = scsi_disk_emulate_inquiry(req, outbuf);
         if (buflen < 0)
@@ -964,7 +958,6 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf)
 
     switch (command) {
     case TEST_UNIT_READY:
-    case REQUEST_SENSE:
     case INQUIRY:
     case MODE_SENSE:
     case MODE_SENSE_10:
@@ -1063,6 +1056,8 @@ 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));

hw/scsi-generic.c

@@ -183,22 +183,6 @@ static void scsi_read_data(SCSIRequest *req)
         return;
     }
 
-    if (r->req.cmd.buf[0] == REQUEST_SENSE) {
-        r->io_header.driver_status = 0;
-        r->io_header.status = 0;
-        r->io_header.dxfer_len =
-            scsi_device_get_sense(&s->qdev, r->buf, r->req.cmd.xfer,
-                                  (r->req.cmd.buf[1] & 1) == 0);
-        r->len = -1;
-        DPRINTF("Data ready tag=0x%x len=%d\n", r->req.tag, r->io_header.dxfer_len);
-        DPRINTF("Sense: %d %d %d %d %d %d %d %d\n",
-                r->buf[0], r->buf[1], r->buf[2], r->buf[3],
-                r->buf[4], r->buf[5], r->buf[6], r->buf[7]);
-        scsi_req_data(&r->req, r->io_header.dxfer_len);
-        /* The sense buffer is cleared when we return GOOD */
-        return;
-    }
-
     ret = execute_command(s->bs, r, SG_DXFER_FROM_DEV, scsi_read_complete);
     if (ret < 0) {
         scsi_command_complete(r, ret);