[SCSI] lpfc 8.3.18: Add logic to detect last devloss timeout

Added driver logic to detect the last devloss timeout of remote nodes which
was still in use of FCF. At that point, the driver should set the last
in-use remote node devloss timeout flag if it was not already set and should
perform proper action on the in-use FCF and recover of FCF from firmware,
depending on the state the driver's FIP engine is in.

Find eligible FCF through FCF table rescan or the next new FCF event when
FCF table rescan turned out empty eligible FCF, and the successful flogi
into an FCF shall clear the HBA_DEVLOSS_TMO flag, indicating the successful
recovery from devloss timeout.

[jejb: add delay.h include to lpfc_hbadisc.c to fix ppc compile]
Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index a0ca572ec28b..98da223e19e0 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -23,6 +23,9 @@
 #define LPFC_GET_QE_REL_INT			32
 #define LPFC_RPI_LOW_WATER_MARK			10
 
+#define LPFC_UNREG_FCF                          1
+#define LPFC_SKIP_UNREG_FCF                     0
+
 /* Amount of time in seconds for waiting FCF rediscovery to complete */
 #define LPFC_FCF_REDISCOVER_WAIT_TMO		2000 /* msec */
 
@@ -163,9 +166,8 @@ struct lpfc_fcf {
 #define FCF_REDISC_PEND	0x80 /* FCF rediscovery pending */
 #define FCF_REDISC_EVT	0x100 /* FCF rediscovery event to worker thread */
 #define FCF_REDISC_FOV	0x200 /* Post FCF rediscovery fast failover */
-#define FCF_REDISC_RRU	0x400 /* Roundrobin bitmap updated */
+#define FCF_REDISC_PROG (FCF_REDISC_PEND | FCF_REDISC_EVT)
 	uint32_t addr_mode;
-	uint16_t fcf_rr_init_indx;
 	uint32_t eligible_fcf_cnt;
 	struct lpfc_fcf_rec current_rec;
 	struct lpfc_fcf_rec failover_rec;