Emulex info in the Open Source domain....

The Emulex proprietary drivers and included utilities are extremely helpful. (the only oddity is where they are installed /usr/sbin/lpfc - but, whatever...). I happen to be at a shop that uses the OS multipath and Emulex fiber channel drivers. There is a bunch of good information to be found...

# lspci | grep -i emulex

0b:00.0 Fibre Channel: Emulex Corporation Saturn-X: LightPulse Fibre Channel Host Adapter (rev 03)

11:00.0 Fibre Channel: Emulex Corporation Saturn-X: LightPulse Fibre Channel Host Adapter (rev 03)

# cat /sys/class/scsi_host/host[2-3]/fwrev

2.00A3 (U3D2.00A3), sli-3

2.00A3 (U3D2.00A3), sli-3

# cat /sys/class/scsi_host/host[2-3]/lpfc_drvr_version

Emulex LightPulse Fibre Channel SCSI driver 8.2.0.87.1p

Emulex LightPulse Fibre Channel SCSI driver 8.2.0.87.1p

# hbacmd listhbas | grep "Port WWN" | awk '{print $4}' | xargs -n 1 hbacmd HbaAttributes

HBA Attributes for 10:00:00:00:c9:a6:91:35

Host Name : dbslp0066

Manufacturer : Emulex Corporation

Serial Number : VM03980823

Model : LPe12000-E

Model Desc : EMC LPe12000-E 8Gb PCIe Fibre Channel Adapter

Node WWN : 20 00 00 00 c9 a6 91 35

Node Symname : Emulex LPe12000-E FV2.00A3 DV8.2.0.87.1p

HW Version : 31004549

Opt ROM Version: 5.03a10

FW Version : 2.00A3 (U3D2.00A3), sli-3

Vendor Spec ID : 10DF

Number of Ports: 1

Driver Name : lpfc

Device ID : F100

HBA Type : LPe12000-E

Operational FW : SLI-3 Overlay

SLI2 FW : 2.00a3

SLI3 FW : 2.00a3

IEEE Address : 00 00 c9 a6 91 35

Boot Code : Enabled

Boot Version : 5.03a10

Driver Version : 8.2.0.87.1p; HBAAPI(I) v2.3.b, 07-12-10

Kernel Version : 1.10a8

HBA Temperature: Normal

Function Type : FC

Sub Device ID : F100

Sub Vendor ID : 10DF

HBA Attributes for 10:00:00:00:c9:a6:8c:63

Host Name : dbslp0066

Manufacturer : Emulex Corporation

Serial Number : VM03980805

Model : LPe12000-E

Model Desc : EMC LPe12000-E 8Gb PCIe Fibre Channel Adapter

Node WWN : 20 00 00 00 c9 a6 8c 63

Node Symname : Emulex LPe12000-E FV2.00A3 DV8.2.0.87.1p

HW Version : 31004549

Opt ROM Version: 5.03a10

FW Version : 2.00A3 (U3D2.00A3), sli-3

Vendor Spec ID : 10DF

Number of Ports: 1

Driver Name : lpfc

Device ID : F100

HBA Type : LPe12000-E

Operational FW : SLI-3 Overlay

SLI2 FW : 2.00a3

SLI3 FW : 2.00a3

IEEE Address : 00 00 c9 a6 8c 63

Boot Code : Enabled

Boot Version : 5.03a10

Driver Version : 8.2.0.87.1p; HBAAPI(I) v2.3.b, 07-12-10

Kernel Version : 1.10a8

HBA Temperature: Normal

Function Type : FC

Sub Device ID : F100

Sub Vendor ID : 10DF

# ls -1 -d /sys/bus/pci/drivers/lpfc/*/host*

/sys/bus/pci/drivers/lpfc/0000:0b:00.0/host2

/sys/bus/pci/drivers/lpfc/0000:11:00.0/host3

2012-03-07 -- I found the following @
http://kairo.wordpress.com/2010/05/13/identify-qlogic-wwn-on-red-hat-enterprise-linux-5-and-4-rhel/

# lspci | grep -i fibre
04:00.0 Fibre Channel: QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA (rev 03)
04:00.1 Fibre Channel: QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA (rev 03)
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)

On  Red Hat Enterprise Linux 5 (5.x) is on /sys/class/fc_host/hostX/port_name

(X is your device 1,2,3,…N)

For get use:

cat /sys/class/fc_host/hostX/port_name

Sample with multiple HBA (Fibre) QLogic

# ls /sys/class/fc_host/
host3  host4  host5  host6
# cat /sys/class/fc_host/host[3-6]/port_name
0x2100001b32936e24
0x2101001b32b36e24
0x2100001b32932821
0x2101001b32b32821

On Red Hat Enterprise Linux 4 (AS/ES) is on /proc/scsi/qla2xxx/1 (1,2,3,..N)

Sample:

# egrep [node|port] /proc/scsi/qlx2xxx/0
scsi-qla0-adapter-node=200000e08b1c19f2;
scsi-qla0-adapter-port=210000e08b1c19f2;