Each SCSI target port can have a 'target port group' identifier.
This identifier is used for management software to group individual
I_T_L nexus together eg when assembling a multipath topology.
Signed-off-by: Hannes Reinecke <h...@suse.de>
---
hw/scsi/scsi-disk.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 4797d83..f544f43 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -79,6 +79,7 @@ struct SCSIDiskState
uint64_t wwn;
uint64_t port_wwn;
uint16_t port_index;
+ uint16_t port_group;
uint64_t max_unmap_size;
uint64_t max_io_size;
QEMUBH *bh;
@@ -658,6 +659,14 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req,
uint8_t *outbuf)
stw_be_p(&outbuf[buflen + 2], s->port_index);
buflen += 4;
}
+ if (s->port_group) {
+ outbuf[buflen++] = 0x61; // SAS / Binary
+ outbuf[buflen++] = 0x95; // PIV / Target port / target port
group
+ outbuf[buflen++] = 0; // reserved
+ outbuf[buflen++] = 4;
+ stw_be_p(&outbuf[buflen + 2], s->port_group);
+ buflen += 4;
+ }
break;
}
case 0xb0: /* block limits */
@@ -2670,6 +2679,7 @@ static Property scsi_hd_properties[] = {
DEFINE_PROP_UINT64("wwn", SCSIDiskState, wwn, 0),
DEFINE_PROP_UINT64("port_wwn", SCSIDiskState, port_wwn, 0),
DEFINE_PROP_UINT16("port_index", SCSIDiskState, port_index, 0),
+ DEFINE_PROP_UINT16("port_group", SCSIDiskState, port_group, 0),
DEFINE_PROP_UINT64("max_unmap_size", SCSIDiskState, max_unmap_size,
DEFAULT_MAX_UNMAP_SIZE),
DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size,
@@ -2720,6 +2730,7 @@ static Property scsi_cd_properties[] = {
DEFINE_PROP_UINT64("wwn", SCSIDiskState, wwn, 0),
DEFINE_PROP_UINT64("port_wwn", SCSIDiskState, port_wwn, 0),
DEFINE_PROP_UINT16("port_index", SCSIDiskState, port_index, 0),
+ DEFINE_PROP_UINT16("port_group", SCSIDiskState, port_group, 0),
DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size,
DEFAULT_MAX_IO_SIZE),
DEFINE_PROP_END_OF_LIST(),
@@ -2785,6 +2796,7 @@ static Property scsi_disk_properties[] = {
DEFINE_PROP_UINT64("wwn", SCSIDiskState, wwn, 0),
DEFINE_PROP_UINT64("port_wwn", SCSIDiskState, port_wwn, 0),
DEFINE_PROP_UINT16("port_index", SCSIDiskState, port_index, 0),
+ DEFINE_PROP_UINT16("port_group", SCSIDiskState, port_group, 0),
DEFINE_PROP_UINT64("max_unmap_size", SCSIDiskState, max_unmap_size,
DEFAULT_MAX_UNMAP_SIZE),
DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size,
--
1.8.4.5
