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/esp.c b/hw/esp.c
index aad290f..5742bb3 100644
--- a/hw/esp.c
+++ b/hw/esp.c
@@ -724,7 +724,8 @@ void esp_init(target_phys_addr_t espaddr, int it_shift,
 
 static const struct SCSIBusInfo esp_scsi_info = {
     .tcq = false,
-    .ndev = ESP_MAX_DEVS,
+    .max_target = ESP_MAX_DEVS,
+    .max_lun = 7,
 
     .transfer_data = esp_transfer_data,
     .complete = esp_command_complete,