Unable to get "LinkUp / Online " status for qlogic HBA on RHEL.

Issue

• HBA state is seen as "LinkDown" even though HBA is correctly detected in the system.

• HBA is seen to have been detected correctly.

$ grep -i Fibre lspci
05:00.0 Fibre Channel: QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA (rev 03)
05:00.1 Fibre Channel: QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA (rev 03)
           +-06.0-[05]--+-00.0  QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA
           |            \-00.1  QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA

• With third-party utility

# qaucli -g
Using config file: /opt/QLogic_Corporation/QConvergeConsoleCLI/qaucli.cfg
Installation directory: /opt/QLogic_Corporation/QConvergeConsoleCLI
Working dir: /root
--------------------------------------------------------------------------------
Host Name                      : node1
OS Type                        : Linux - Red Hat Enterprise Linux Server release 5.8  x86_64
OS Version                     : 2.6.18-348.4.1.el5
[... ]
--------------------------------------------------------------------------------
HBA Model QLE2462 (SN Lxxxxxxx38):
  Port   1 WWPN 21-00-00-aa-xx-yy-cc-29 (HBA instance  0) Link Down     <--------
  Port   2 WWPN 21-01-00-aa-xx-yy-cc-29 (HBA instance  1) Link Down     <--------
--------------------------------------------------------------------------------
Total QLogic HBA(s) : 1

• With RHEL provided qla2xxx drivers

# cat /sys/class/fc_host/host*/port_state
Linkdown                      <--------
Linkdown                      <--------