[SCSI] fcoe: reset FIP ctlr link state on disable/enable

The FIP controler state wasn't being reset on a disable.
A disable/enable sequence should be treated as a link event.
Otherwise, when using disable to mask a time when the link
is up but unusable, FCF discovery would attempt to continue
and login would jump directly to the non-FIP fallback on
enable.

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>

1 files changed, 7 insertions, 4 deletions

diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 927b3e63d871..0d8127e58feb 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -1901,9 +1901,10 @@ static int fcoe_disable(const char *buffer, struct kernel_param *kp)
         fcoe = fcoe_hostlist_lookup_port(netdev);
         rtnl_unlock();
 
-        if (fcoe)
+        if (fcoe) {
                 fc_fabric_logoff(fcoe->ctlr.lp);
-        else
+                fcoe_ctlr_link_down(&fcoe->ctlr);
+        } else
                 rc = -ENODEV;
 
         dev_put(netdev);
@@ -1950,9 +1951,11 @@ static int fcoe_enable(const char *buffer, struct kernel_param *kp)
         fcoe = fcoe_hostlist_lookup_port(netdev);
         rtnl_unlock();
 
-        if (fcoe)
+        if (fcoe) {
+                if (!fcoe_link_ok(fcoe->ctlr.lp))
+                        fcoe_ctlr_link_up(&fcoe->ctlr);
                 rc = fc_fabric_login(fcoe->ctlr.lp);
-        else
+        } else
                 rc = -ENODEV;
 
         dev_put(netdev);