[SCSI] libfc: add FLOGI state to rport for VN2VN

The FIP proposal for VN_port to VN_port point-to-multipoint
operation requires a FLOGI be sent to each remote port.
The FLOGI is sent with the assigned S_ID and D_IDs of the
local and remote ports.  This and the response get
FIP-encapsulated for Ethernet.

Add FLOGI state to the remote port state machine.
This will be skipped if not in point-to-multipoint mode.

To reduce a little duplication between PLOGI and FLOGI
response handling, added fc_rport_login_complete(), which
handles the parameters for the rdata struct.

Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

2 files changed, 6 insertions, 0 deletions

diff --git a/include/scsi/fc/fc_els.h b/include/scsi/fc/fc_els.h
index 70a7e92a7664..481abbd48e39 100644
--- a/include/scsi/fc/fc_els.h
+++ b/include/scsi/fc/fc_els.h
@@ -191,6 +191,7 @@ enum fc_els_rjt_reason {
         ELS_RJT_UNAB =          0x09,   /* unable to perform command request */
         ELS_RJT_UNSUP =         0x0b,   /* command not supported */
         ELS_RJT_INPROG =        0x0e,   /* command already in progress */
+        ELS_RJT_FIP =           0x20,   /* FIP error */
         ELS_RJT_VENDOR =        0xff,   /* vendor specific error */
 };
 
@@ -212,6 +213,7 @@ enum fc_els_rjt_explan {
         ELS_EXPL_UNAB_DATA =    0x2a,   /* unable to supply requested data */
         ELS_EXPL_UNSUPR =       0x2c,   /* Request not supported */
         ELS_EXPL_INV_LEN =      0x2d,   /* Invalid payload length */
+        ELS_EXPL_NOT_NEIGHBOR = 0x62,   /* VN2VN_Port not in neighbor set */
         /* TBD - above definitions incomplete */
 };
 
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index bd0560509ce6..24b91c922055 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -97,6 +97,8 @@ enum fc_disc_event {
 /**
  * enum fc_rport_state - Remote port states
  * @RPORT_ST_INIT:    Initialized
+ * @RPORT_ST_FLOGI:   Waiting for FLOGI completion for point-to-multipoint
+ * @RPORT_ST_PLOGI_WAIT:   Waiting for peer to login for point-to-multipoint
  * @RPORT_ST_PLOGI:   Waiting for PLOGI completion
  * @RPORT_ST_PRLI:    Waiting for PRLI completion
  * @RPORT_ST_RTV:     Waiting for RTV completion
@@ -107,6 +109,8 @@ enum fc_disc_event {
 */
 enum fc_rport_state {
         RPORT_ST_INIT,
+        RPORT_ST_FLOGI,
+        RPORT_ST_PLOGI_WAIT,
         RPORT_ST_PLOGI,
         RPORT_ST_PRLI,
         RPORT_ST_RTV,