[SCSI] lpfc 8.3.0 : Fix several minor issues

- Avoid polling HBA Error Attention when HBA's PCI channel is offline
  due to PCI EEH

- Fix handling of RSCN with non-zero event qualifiers

- Remove unnecessary sleeps during HBA initialization which slow down
  driver load

- Fix internal and external loopback on FCoE HBAs

- Fix incorrect decrement of cmd_pending count in lpfc_queuecomand
  error path

- Fix reporting of port busy events to management application

- Rename lpfc_adjust_queue_depth() to lpfc_rampdown_queue_depth() for
  consistency with its partner lpfc_rampup_queue_depth()

- Delete redundant lpfc_cmd->start_time = jiffies assignment in
  lpfc_queuecommand()

- Fix handling for ELS, mailbox and heartbeat time outs in the worker
  thread by removing unnecessary checking of the work_port_events
  flags.

- Fix NULL pointer dereference in lpfc_prep_els_iocb

- In lpfc_device_recov_npr_node(), move clearing of NLP_NPR_2B_DISC
  flag after call to lpfc_cancel_retry_delay_tmo() to keep
  targets-in-discovery count correct

- Remove lpfc_probe_one()'s call to scsi_scan_host() which could cause
  concurrent SCSI scans to step on each other

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/lpfc/lpfc_hbadisc.c

@@ -350,7 +350,7 @@ lpfc_send_fastpath_evt(struct lpfc_hba *phba,
 			evt_data_size = sizeof(fast_evt_data->un.
 				read_check_error);
 		} else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
-			(evt_sub_category == IOSTAT_NPORT_BSY)) {
+			(evt_sub_category == LPFC_EVENT_PORT_BUSY)) {
 			evt_data = (char *) &fast_evt_data->un.fabric_evt;
 			evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
 		} else {