[SCSI] libfc: vport link handling and fc_vport state managment
NPIV vports are managed in libfc by changing their virtual link state
when the parent N_Ports internal state changes. The vport link is only
online when the N_Port is in a ready state (logged into the fabric).
vport_state is updated as needed in this patch as well, currently the states
LINKDOWN, INITIALIZING, ACTIVE, DSIABLED, and NO_FABRIC_SUPP are used.
This also changes the fc_host port_state handling to differentiate between
LINKDOWN and OFFLINE.
Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 2c6d55d..dfeb1ee 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -788,11 +788,13 @@
/*
* The link is up for the given local port.
*/
+void __fc_linkup(struct fc_lport *);
void fc_linkup(struct fc_lport *);
/*
* Link is down for the given local port.
*/
+void __fc_linkdown(struct fc_lport *);
void fc_linkdown(struct fc_lport *);
/*
@@ -821,6 +823,12 @@
struct fc_lport *fc_vport_id_lookup(struct fc_lport *n_port, u32 port_id);
/*
+ * NPIV VN_Port link state management
+ */
+void fc_vport_setlink(struct fc_lport *vn_port);
+void fc_vports_linkchange(struct fc_lport *n_port);
+
+/*
* REMOTE PORT LAYER
*****************************/
int fc_rport_init(struct fc_lport *lp);