1 files changed, 29 insertions, 2 deletions

diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index 4496b32972e5..319ff7a60dfe 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -28,6 +28,7 @@
 #define SCSI_TRANSPORT_FC_H
 
 #include <linux/config.h>
+#include <scsi/scsi.h>
 
 struct scsi_transport_template;
 
@@ -429,6 +430,34 @@ struct fc_function_template {
 };
 
 
+/**
+ * fc_remote_port_chkready - called to validate the remote port state
+ *   prior to initiating io to the port.
+ *
+ * Returns a scsi result code that can be returned by the LLDD.
+ *
+ * @rport:      remote port to be checked
+ **/
+static inline int
+fc_remote_port_chkready(struct fc_rport *rport)
+{
+        int result;
+
+        switch (rport->port_state) {
+        case FC_PORTSTATE_ONLINE:
+                result = 0;
+                break;
+        case FC_PORTSTATE_BLOCKED:
+                result = DID_BUS_BUSY << 16;
+                break;
+        default:
+                result = DID_NO_CONNECT << 16;
+                break;
+        }
+        return result;
+}
+
+
 struct scsi_transport_template *fc_attach_transport(
                         struct fc_function_template *);
 void fc_release_transport(struct scsi_transport_template *);
@@ -437,8 +466,6 @@ struct fc_rport *fc_remote_port_add(struct Scsi_Host *shost,
                         int channel, struct fc_rport_identifiers  *ids);
 void fc_remote_port_delete(struct fc_rport  *rport);
 void fc_remote_port_rolechg(struct fc_rport  *rport, u32 roles);
-int fc_remote_port_block(struct fc_rport *rport);
-void fc_remote_port_unblock(struct fc_rport *rport);
 int scsi_is_fc_rport(const struct device *);
 
 static inline u64 wwn_to_u64(u8 *wwn)