[SCSI] iscsi: add target discvery event to transport class
Patch from david.somayajulu@qlogic.com:
Add target discovery event. We may have a setup where the iscsi traffic
is on a different netowrk than the other network traffic. In this case
we will want to do discovery though the iscsi card. This patch adds
a event to the transport class that can be used by hw iscsi cards that
support this.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 5569fdc..99e76d4 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -978,6 +978,21 @@
}
static int
+iscsi_tgt_dscvr(struct iscsi_transport *transport,
+ struct iscsi_uevent *ev)
+{
+ struct sockaddr *dst_addr;
+
+ if (!transport->tgt_dscvr)
+ return -EINVAL;
+
+ dst_addr = (struct sockaddr *)((char*)ev + sizeof(*ev));
+ return transport->tgt_dscvr(ev->u.tgt_dscvr.type,
+ ev->u.tgt_dscvr.host_no,
+ ev->u.tgt_dscvr.enable, dst_addr);
+}
+
+static int
iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
int err = 0;
@@ -1065,6 +1080,9 @@
case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT:
err = iscsi_if_transport_ep(transport, ev, nlh->nlmsg_type);
break;
+ case ISCSI_UEVENT_TGT_DSCVR:
+ err = iscsi_tgt_dscvr(transport, ev);
+ break;
default:
err = -EINVAL;
break;