scsi: allow arbitrary LUNs

This only requires changes in two places: in SCSIBus, we need to look
for a free LUN if somebody creates a device with a pre-existing scsi-id
but the default LUN (-1, meaning "search for a free spot"); in vSCSI,
we need to actually parse the LUN according to the SCSI spec.

For vSCSI, max_target/max_lun are set according to the logical unit
addressing format in SAM.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/hw/scsi.h b/hw/scsi.h
index add3d2d..401d8d3 100644
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -98,7 +98,8 @@ struct SCSIDeviceInfo {
 };
 
 struct SCSIBusInfo {
-    int tcq, ndev;
+    int tcq;
+    int max_target, max_lun;
     void (*transfer_data)(SCSIRequest *req, uint32_t arg);
     void (*complete)(SCSIRequest *req, uint32_t arg);
     void (*cancel)(SCSIRequest *req);