From: Brian King <brking@linux.vnet.ibm.com>
Date: Tue, 23 Aug 2011 04:45:20 +0000 (+0000)
Subject: ofpath: Add support for fibre channel devices
X-Git-Url: http://git.ozlabs.org/?p=yaboot.git;a=commitdiff_plain;h=61cc58993f0d2d142a9866417a4f9ffe05e50b1c

ofpath: Add support for fibre channel devices

Adds support for fibre channel devices to ofpath for IBM Power Systems.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
---

diff --git a/ybin/ofpath b/ybin/ofpath
index 1a601bb..cb4198e 100755
--- a/ybin/ofpath
+++ b/ybin/ofpath
@@ -464,6 +464,40 @@ scsi_ofpath2()
                 return 0
         fi
 
+        local fc=${DEVSPEC%@*}
+        fc=${fc##/*/}
+
+        if [[ -e /proc/device-tree$DEVSPEC/device_type ]]; then
+                local devtype=$(cat /proc/device-tree$DEVSPEC/device_type);
+                if [[ $devtype = "fcp" || $devtype = "scsi-fcp" ]]; then
+                        fc="fibre-channel";
+                fi
+        fi
+
+        if [[ $fc = "fibre-channel" ]]; then
+                local wwpn=$(get_fc_wwpn "$DEVICE_PATH/../../fc_remote_ports*")
+                local ofpath=$DEVSPEC
+
+                if [[ ! -e /proc/device-tree$DEVSPEC/disk ]]; then
+                        for dir in `find /proc/device-tree$DEVSPEC -type d`; do
+                                if [[ -e $dir/disk ]]; then
+                                        ofpath=${dir##/proc/device-tree}
+                                        break;
+                                fi
+                        done
+                fi
+
+                ofpath=$(printf "%s/disk@%s" $ofpath $wwpn)
+
+                if [[ $DEVICE_LUN != "0" ]]; then
+                        local fc_lun=$(get_fc_scsilun $DEVICE_LUN)
+                        ofpath=$(printf "%s,%s" $ofpath $fc_lun)
+                fi
+
+                echo "$ofpath"
+                return 0
+        fi
+
         echo 1>&2 "$PRG: Driver: $SCSI_DRIVER is not supported"
         return 1
 }