[Qemu-devel] [PATCH 09/16] scsi: push lun field to SCSIDevice

[Paolo Bonzini <pbonzini@redhat.com>]

This will let SCSIBus detect requests sent to an invalid LUN, and
handle them itself.  However, there will be still support for only one
LUN per target

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/scsi-bus.c     |    1 +
 hw/scsi-generic.c |    5 +----
 hw/scsi.h         |    1 +
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c
index 579f6b4..07d8704 100644
--- a/hw/scsi-bus.c
+++ b/hw/scsi-bus.c
@@ -16,6 +16,7 @@ static struct BusInfo scsi_bus_info = {
     .get_fw_dev_path = scsibus_get_fw_dev_path,
     .props = (Property[]) {
         DEFINE_PROP_UINT32("scsi-id", SCSIDevice, id, -1),
+        DEFINE_PROP_UINT32("lun", SCSIDevice, lun, 0),
         DEFINE_PROP_END_OF_LIST(),
     },
 };
diff --git a/hw/scsi-generic.c b/hw/scsi-generic.c
index 453a295..699831a 100644
--- a/hw/scsi-generic.c
+++ b/hw/scsi-generic.c
@@ -60,7 +60,6 @@ struct SCSIGenericState
 {
     SCSIDevice qdev;
     BlockDriverState *bs;
-    int lun;
 };
 
 static void scsi_free_request(SCSIRequest *req)
@@ -292,7 +291,7 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *cmd)
     SCSIGenericReq *r = DO_UPCAST(SCSIGenericReq, req, req);
     int ret;
 
-    if (cmd[0] != REQUEST_SENSE && req->lun != s->lun) {
+    if (cmd[0] != REQUEST_SENSE && req->lun != s->qdev.lun) {
         DPRINTF("Unimplemented LUN %d\n", req->lun);
         scsi_req_build_sense(&r->req, SENSE_CODE(LUN_NOT_SUPPORTED));
         scsi_req_complete(&r->req, CHECK_CONDITION);
@@ -466,8 +465,6 @@ static int scsi_generic_initfn(SCSIDevice *dev)
     }
 
     /* define device state */
-    s->lun = scsiid.lun;
-    DPRINTF("LUN %d\n", s->lun);
     s->qdev.type = scsiid.scsi_type;
     DPRINTF("device type %d\n", s->qdev.type);
     if (s->qdev.type == TYPE_TAPE) {
diff --git a/hw/scsi.h b/hw/scsi.h
index f29d65f..5a1bbe2 100644
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -65,6 +65,7 @@ struct SCSIDevice
     uint8_t sense[SCSI_SENSE_BUF_SIZE];
     uint32_t sense_len;
     QTAILQ_HEAD(, SCSIRequest) requests;
+    uint32_t lun;
     int blocksize;
     int type;
 };
-- 
1.7.6