[Qemu-devel] [PATCH v2 4/5] vhost-scsi: add a property for booting

[arei.gonglei]

From: Gonglei <address@hidden>

Because Qemu only accept an wwpn argument for vhost-scsi, we
cannot assign a tpgt. That's say tpg is transparent for Qemu, Qemu
doesn't know which tpg can boot, but vhost-scsi driver module
doesn't know too for one assigned wwpn.

At present, we assume that the first tpg can boot only, and add
a boot_tpgt property that defaults to 0. Of course, people can
pass a valid value by qemu command line.

Suggested-by: Paolo Bonzini <address@hidden>
Signed-off-by: Gonglei <address@hidden>
---
 include/hw/virtio/vhost-scsi.h  | 1 +
 include/hw/virtio/virtio-scsi.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/include/hw/virtio/vhost-scsi.h b/include/hw/virtio/vhost-scsi.h
index c0056c2..dea0075 100644
--- a/include/hw/virtio/vhost-scsi.h
+++ b/include/hw/virtio/vhost-scsi.h
@@ -69,6 +69,7 @@ typedef struct VHostSCSI {
 #define DEFINE_VHOST_SCSI_PROPERTIES(_state, _conf_field) \
     DEFINE_PROP_STRING("vhostfd", _state, _conf_field.vhostfd), \
     DEFINE_PROP_STRING("wwpn", _state, _conf_field.wwpn), \
+    DEFINE_PROP_UINT32("boot_tpgt", _state, _conf_field.boot_tpgt, 0), \
     DEFINE_PROP_UINT32("num_queues", _state, _conf_field.num_queues, 1), \
     DEFINE_PROP_UINT32("max_sectors", _state, _conf_field.max_sectors, 
0xFFFF), \
     DEFINE_PROP_UINT32("cmd_per_lun", _state, _conf_field.cmd_per_lun, 128)
diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h
index bf17cc9..c122e7a 100644
--- a/include/hw/virtio/virtio-scsi.h
+++ b/include/hw/virtio/virtio-scsi.h
@@ -153,6 +153,7 @@ struct VirtIOSCSIConf {
     uint32_t cmd_per_lun;
     char *vhostfd;
     char *wwpn;
+    uint32_t boot_tpgt;
     IOThread *iothread;
 };
 
-- 
1.7.12.4