mirror of
https://github.com/AuxXxilium/eudev.git
synced 2024-12-28 06:35:34 +07:00
path_id: add bus to USB path
This commit is contained in:
Hannes Reinecke
Kay Sievers
parent
63645a3dfc
commit
24c27caf82
1
TODO
1
TODO
@ -17,4 +17,3 @@ udev version:
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(we rely on the kernel "uevent" triggers of kernel 2.6.15 and no longer
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want to guess event properties from sysfs like udevstart is doing it)
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o remove use of "device" link in path_id
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@ -29,8 +29,7 @@ KERNEL=="sd*[0-9]|dasd*[0-9]", IMPORT{parent}=="ID_*"
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KERNEL=="sd*[0-9]|dasd*[0-9]", ENV{ID_SERIAL}=="?*", SYMLINK+="disk/by-id/$env{ID_BUS}-$env{ID_SERIAL}-part%n"
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# by-path (shortest physical path)
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KERNEL=="*[!0-9]|sr*", ENV{ID_TYPE}=="?*", IMPORT{program}="/sbin/path_id %p", SYMLINK+="disk/by-path/$env{ID_PATH}"
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KERNEL=="st*", ENV{ID_TYPE}=="?*", IMPORT{program}="/sbin/path_id %p", SYMLINK+="tape/by-path/$env{ID_PATH}"
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KERNEL=="*[!0-9]|sr*|st*", ENV{ID_TYPE}=="?*", IMPORT{program}="/sbin/path_id %p", SYMLINK+="disk/by-path/$env{ID_PATH}"
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KERNEL=="sr*|st*", GOTO="persistent_storage_end"
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KERNEL=="*[0-9]", IMPORT{parent}=="ID_*"
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KERNEL=="*[0-9]", ENV{ID_PATH}=="?*", SYMLINK+="disk/by-path/$env{ID_PATH}-part%n"
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535
extras/path_id
Normal file → Executable file
535
extras/path_id
Normal file → Executable file
@ -1,9 +1,9 @@
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#!/bin/sh
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# provide the shortest possible unique hardware path to a block device
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# for the udev persistent disk device naming scheme
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# provide the shortest possible unique hardware path to a device
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# for the Linux Persistent Device Naming scheme
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#
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# Copyright (C) 2005 SUSE Linux Products GmbH
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# Copyright (C) 2005-2006 SUSE Linux Products GmbH
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# Author:
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# Hannes Reinecke <hare@suse.de>
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#
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@ -12,53 +12,12 @@
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# Free Software Foundation version 2 of the License.
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#
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# to be called from a udev rule to return the name for a symlink
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# DEVPATH=/block/sda/sda3 path_id
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# DEVPATH=<devpath>; path_id
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# path_id <devpath>
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# examples for all block devices on a system:
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# for i in `find /sys/class/block`; do DEVPATH="`echo $i | sed -e 's@^/sys\|/dev@@g'`"; path_id; done
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# SCSI cdrom
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# /class/block/sr0 -> /devices/pci0002:30/0002:30:0c.0/host0/target0:0:0/0:0:1:0
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# pci-0002:30:0c.0-scsi-0:0:1:0
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#
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# SCSI disk
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# /class/block/sda -> /devices/pci0002:30/0002:30:0c.0/host0/target0:0:0/0:0:4:0
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# pci-0002:30:0c.0-scsi-0:0:4:0
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#
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# SATA disk, 4 channels per controller
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# /class/block/sda -> /devices/pci0001:00/0001:00:07.0/0001:05:0c.0/host0/target0:0:0/0:0:0:0
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# pci-0001:05:0c.0-scsi-0:0:0:0
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#
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# IDE disk
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# /class/block/hda -> /devices/pci0002:02/0002:02:0d.0/ide0/0.0
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# pci-0002:02:0d.0-ide-0.0
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#
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# IDE cdrom on a Mac ASIC:
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# /class/block/hdc -> /devices/pci0001:01/0001:01:17.0/0.80000000:mac-io/0.00020000:ata-3/ide1/1.0
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# mac-io_ata-3_master
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#
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# IDE cdrom on a Mac ASIC, with ide-scsi:
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# /class/block/sr0 -> /devices/pci0001:01/0001:01:17.0/0.80000000:mac-io/0.0001f000:ata-4/ide0/0.1/host2/target2:0:0/2:0:0:0
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# mac-io_ata-4_slave
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# USB CDrom drive without 'serial' number:
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# reusing 'product' and 'manufacturer' string, if available
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# /class/block/sr0 -> /devices/pci0001:00/0001:00:04.0/0001:02:0b.0/usb4/4-2/4-2:1.0/host4/4:0:0:0
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# usb-storage-odd-Freecom-USIDERev930:0:0:0
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# devices may have several interfaces on one PCI device, like IDE:
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# pci-0001:00:04.0_ide1-master
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# pci-0001:00:04.0_ide2-master
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# pci-0001:00:04.0_ide2-slave
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# they are marked as ports, it is expected that the driver shows
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# ide1 even if there is nothing connected to either master or slave
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# interface
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#
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# match order is important.
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# first IDE to find ide-scsi devices, then SCSI
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# first usb-storage, then firewire sbp2, then the rest
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SYSFS=/sys
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RESULT=1
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TYPE=
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@ -67,83 +26,82 @@ full_sysfs_path=
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full_sysfs_device_path=
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if [ -z "$DEVPATH" -a -z "$1" ] ; then
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exit 1
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exit 1
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fi
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if [ -z "$DEVPATH" ] ; then
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case "$1" in
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$SYSFS/*)
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DEVPATH="${1#$SYSFS}"
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;;
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*)
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DEVPATH=$1
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;;
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esac
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case "$1" in
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$SYSFS/*)
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DEVPATH="${1#$SYSFS}"
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;;
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*)
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DEVPATH=$1
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;;
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esac
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fi
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if [ ! -e $SYSFS$DEVPATH/dev ] ; then
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exit 1
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exit 1
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fi
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case "$DEVPATH" in
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/devices/*)
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cd "$SYSFS$DEVPATH/subsystem";
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TYPE="`pwd -P`"
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cd "$OPWD"
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TYPE="${TYPE##*/}"
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;;
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/class/*)
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TYPE="${DEVPATH#/class/}"
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TYPE="${TYPE%%/*}"
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;;
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/block/*)
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TYPE=block
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;;
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*)
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exit 1
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;;
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/devices/*)
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cd "$SYSFS$DEVPATH/subsystem";
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TYPE="`pwd -P`"
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cd "$OPWD"
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TYPE="${TYPE##*/}"
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;;
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/class/*)
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TYPE="${DEVPATH#/class/}"
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TYPE="${TYPE%%/*}"
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;;
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/block/*)
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TYPE=block
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;;
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*)
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exit 1
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;;
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esac
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get_port_offset () {
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local type offset port
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type=$1
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offset=$2
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for i in $type[0-9]* ; do
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: i $i
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port="${i#$type}"
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if [ "$port" -lt "$offset" ] ; then offset=$port ; fi
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done
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echo $offset
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local type offset port
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type=$1
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offset=$2
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for i in $type[0-9]* ; do
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: i $i
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port="${i#$type}"
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if [ "$port" -lt "$offset" ] ; then offset=$port ; fi
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done
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echo $offset
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}
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handle_pci () {
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local DEV=$1
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cd -P $1
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DEV=${PWD}
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pci_id=${DEV##*/}
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host_dev_path=$DEV
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while [ ! -z "$host_dev_path" ] ; do
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case "$host_dev_path" in
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*/pci[0-9]*)
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host_dev_path=${host_dev_path%/*}
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;;
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*) break;;
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esac
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done
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d="pci-$pci_id-$d"
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D="$host_dev_path"
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RESULT=0
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local DEV=$1
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cd -P $1
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DEV=${PWD}
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pci_id=${DEV##*/}
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host_dev_path=$DEV
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while [ ! -z "$host_dev_path" ] ; do
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case "$host_dev_path" in
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*/pci[0-9]*)
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host_dev_path=${host_dev_path%/*}
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;;
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*)
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break
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;;
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esac
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done
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d="pci-$pci_id-$d"
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D="$host_dev_path"
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RESULT=0
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}
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handle_block_ide () {
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: handle_block_ide $*
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handle_ide () {
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: handle_ide $*
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local DEV=$1
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local port idedev idecontroller
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# IDE
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: DEV $DEV
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port=${DEV##*/}
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idedev=${DEV%/*}
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idecontroller=${idedev%/*}
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@ -152,32 +110,32 @@ handle_block_ide () {
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: port $port d $d
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: idedev $idedev kernel_port $port
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case "${port#*.}" in
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0)
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channel=0
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;;
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1)
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channel=1
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;;
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*)
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echo "Error: $idedev is neither master or slave" >&2
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0)
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channel=0
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;;
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1)
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channel=1
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;;
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*)
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echo "Error: $idedev is neither master or slave" >&2
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;;
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esac
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cd $idecontroller
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offset="`get_port_offset ide ${port%.*}`"
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cd "$OPWD"
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: port offset $offset
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port=$((${port%.*} - $offset))
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if [ "$d" ] ; then
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d="ide-${port}:$channel-$d"
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d="ide-${port}:$channel-$d"
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else
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d="ide-${port}:$channel"
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d="ide-${port}:$channel"
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fi
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D=$idecontroller
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RESULT=0
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}
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handle_block_scsi () {
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: handle_block_scsi $*
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handle_scsi () {
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: handle_scsi $*
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local DEV=$1
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local cil controller_port controller_dev
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# SCSI device
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@ -188,12 +146,10 @@ handle_block_scsi () {
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cd "$target_dev"
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target_num=0
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for tid in ${target_id}* ; do
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target_num=$(( $target_num + 1 ))
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target_num=$(( $target_num + 1 ))
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done
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controller_port=${target_dev%/*}
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controller_dev="${controller_port%/*}"
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: controller_dev $controller_dev
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: controller_port $controller_port
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# a host controller may have more than one interface/port
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@ -204,41 +160,35 @@ handle_block_scsi () {
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cd "$OPWD"
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controller_port=$(( $controller_port - $controller_offset))
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scsi_id="scsi-${controller_port}:${cil}"
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if [ "$d" ] ; then
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d="${scsi_id}-$d"
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d="${scsi_id}-$d"
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else
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d="$scsi_id"
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d="$scsi_id"
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fi
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D="$controller_dev"
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RESULT=0
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}
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handle_block_firewire () {
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:handle_block_firewire $*
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local DEV=$1
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if [ -f "$D/ieee1394_id" ] ; then
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read ieee1394_id < $D/ieee1394_id
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fi
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if [ -z "$ieee1394_id" ] ; then
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: no IEEE1394 ID
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RESULT=1
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return
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fi
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fw_host_dev=${DEV%/fw-host*}
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# IEEE1394 devices are always endpoints
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d="ieee1394-0x$ieee1394_id"
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D="$fw_host_dev"
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RESULT=0
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handle_firewire () {
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:handle_firewire $*
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local DEV=$1
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if [ -f "$D/ieee1394_id" ] ; then
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read ieee1394_id < $D/ieee1394_id
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fi
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if [ -z "$ieee1394_id" ] ; then
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: no IEEE1394 ID
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RESULT=1
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return
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fi
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fw_host_dev=${DEV%/fw-host*}
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# IEEE1394 devices are always endpoints
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d="ieee1394-0x$ieee1394_id"
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D="$fw_host_dev"
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RESULT=0
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}
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handle_block_fc () {
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: handle_block_fc $*
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handle_fc () {
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: handle_fc $*
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local DEV=$1
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local cil controller_port controller_dev
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# SCSI-FC device
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@ -248,34 +198,32 @@ handle_block_fc () {
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fc_tgt_num="${fc_tgt_path##*/}"
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fc_tgt_dev="${fc_tgt_path}/fc_transport:${fc_tgt_num}"
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if [ -e "$fc_tgt_dev/port_name" ]; then
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read wwpn < $fc_tgt_dev/port_name
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read wwpn < $fc_tgt_dev/port_name
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fi
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if [ -z "$wwpn" ] ; then
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: no WWPN
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RESULT=1
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return
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: no WWPN
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RESULT=1
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return
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fi
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# Linux currently knows about 32bit luns
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tmp_lun3=$(printf "%04x" $(($fc_tgt_lun & 0xFFFF)))
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tmp_lun2=$(printf "%04x" $(( ($fc_tgt_lun >> 16) & 0xFFFF)))
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tmp_lun1="0000"
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tmp_lun0="0000"
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if (($fc_tgt_lun == 0)) ; then
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lun="0x0000000000000000"
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lun="0x0000000000000000"
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else
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lun="0x${tmp_lun3}${tmp_lun2}${tmp_lun1}${tmp_lun0}"
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lun="0x${tmp_lun3}${tmp_lun2}${tmp_lun1}${tmp_lun0}"
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fi
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controller_dev="${fc_tgt_path%/host[0-9]*}"
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# FC devices are always endpoints
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d="fc-${wwpn}:${lun}"
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D="$controller_dev"
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RESULT=0
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}
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handle_block_sas () {
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: handle_block_sas $*
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handle_sas () {
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: handle_sas $*
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local DEV=$1
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local cil adapter controller_dev
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# SAS device
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@ -286,34 +234,31 @@ handle_block_sas () {
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sas_rphy_id="${sas_phy_path##*/}"
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sas_phy_dev="${sas_host_path}/${sas_phy_id}/sas_phy:${sas_phy_id}"
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if [ -e "$sas_phy_dev/sas_address" ]; then
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read phy_address < $sas_phy_dev/sas_address
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read phy_port < $sas_phy_dev/port_identifier
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read phy_id < $sas_phy_dev/phy_identifier
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read phy_address < $sas_phy_dev/sas_address
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read phy_port < $sas_phy_dev/port_identifier
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read phy_id < $sas_phy_dev/phy_identifier
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fi
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if [ -z "$phy_address" ] ; then
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: no initiator address
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RESULT=1
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return
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: no initiator address
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RESULT=1
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return
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fi
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sas_phy_address="$phy_address:$phy_port:$phy_id"
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sas_rphy_dev="${sas_host_path}/${sas_phy_id}/${sas_rphy_id}/sas_rphy:${sas_rphy_id}"
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if [ -e "$sas_rphy_dev/sas_address" ]; then
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read rphy_address < $sas_rphy_dev/sas_address
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read rphy_id < $sas_rphy_dev/phy_identifier
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read rphy_address < $sas_rphy_dev/sas_address
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read rphy_id < $sas_rphy_dev/phy_identifier
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fi
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if [ -z "$rphy_address" ] ; then
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: no initiator address
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RESULT=1
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return
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: no initiator address
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RESULT=1
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return
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fi
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sas_rphy_address="$rphy_address:$rphy_id"
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controller_dev="${sas_host_path%/host[0-9]*}"
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# SAS devices are always endpoints
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d="sas-${sas_phy_address}-${sas_rphy_address}"
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D="$controller_dev"
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RESULT=0
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}
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@ -328,10 +273,12 @@ handle_usb () {
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while [ ! -z "$host_dev_path" ] ; do
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case "$host_dev_path" in
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*/usb*)
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usb_host_path=$host_dev_path
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host_dev_path="${host_dev_path%/*}"
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;;
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*) break ;;
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usb_host_path=$host_dev_path
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host_dev_path="${host_dev_path%/*}"
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;;
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*)
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break
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;;
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esac
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done
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: host_dev_path $host_dev_path
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@ -341,142 +288,140 @@ handle_usb () {
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usb_host_offset=$(get_port_offset usb $usb_host_num)
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usb_host_port=$(($usb_host_num - $usb_host_offset))
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cd "$OPWD"
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if [ "$d" ] ; then
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d="usb-$usb_host_port:$port_num-${d}"
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d="usb-$usb_host_port:$port_num-${d}"
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else
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d="usb-$usb_host_port:$port_num"
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d="usb-$usb_host_port:$port_num"
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fi
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|
||||
D="$host_dev_path"
|
||||
RESULT=0
|
||||
}
|
||||
|
||||
handle_block () {
|
||||
full_sysfs_path="$SYSFS$DEVPATH"
|
||||
if [ -L $full_sysfs_path/subsystem ]; then
|
||||
# new sysfs block layout
|
||||
full_sysfs_path="${full_sysfs_path%/*}"
|
||||
cd "$full_sysfs_path/subsystem";
|
||||
subsys="`pwd -P`"
|
||||
cd "$OPWD"
|
||||
subsys="${subsys##*/}"
|
||||
if [ "$subsys" == "block" ]; then
|
||||
# parent is "block", it's a partition, move one up
|
||||
full_sysfs_path="${full_sysfs_path%/*}"
|
||||
fi
|
||||
cd $full_sysfs_path
|
||||
else
|
||||
# old sysfs block layout
|
||||
if [ ! -L $full_sysfs_path/device ] ; then
|
||||
if [ -f $full_sysfs_path/range ] ; then return ; fi
|
||||
full_sysfs_path="${full_sysfs_path%/*}"
|
||||
: full_sysfs_path "$full_sysfs_path"
|
||||
if [ ! -L $full_sysfs_path/device -o ! -f $full_sysfs_path/dev ] ; then
|
||||
return
|
||||
fi
|
||||
fi
|
||||
cd $full_sysfs_path/device
|
||||
fi
|
||||
full_sysfs_device_path="`pwd -P`"
|
||||
cd "$OPWD"
|
||||
D=$full_sysfs_device_path
|
||||
while [ ! -z "$D" ] ; do
|
||||
case "$D" in
|
||||
*/ide[0-9]/[0-9].[0-9]*|*/ide[0-9][0-9]/[0-9][0-9].[0-9]*)
|
||||
handle_block_ide "$D"
|
||||
;;
|
||||
*/css0/*)
|
||||
if [ -r $full_sysfs_device_path/wwpn ]; then
|
||||
read wwpn < $full_sysfs_device_path/wwpn
|
||||
fi
|
||||
if [ -r $full_sysfs_device_path/fcp_lun ]; then
|
||||
read lun < $full_sysfs_device_path/fcp_lun
|
||||
fi
|
||||
if [ -r $full_sysfs_device_path/hba_id ]; then
|
||||
read bus_id < $full_sysfs_device_path/hba_id
|
||||
fi
|
||||
if [ "$bus_id" -a "$wwpn" -a "$lun" ]; then
|
||||
# S/390 zfcp adapter
|
||||
d="ccw-$bus_id-zfcp-$wwpn:$lun"
|
||||
RESULT=0
|
||||
handle_device () {
|
||||
full_sysfs_path="$SYSFS$DEVPATH"
|
||||
if [ -L $full_sysfs_path/subsystem ]; then
|
||||
# new sysfs block layout
|
||||
full_sysfs_path="${full_sysfs_path%/*}"
|
||||
cd "$full_sysfs_path/subsystem";
|
||||
subsys="`pwd -P`"
|
||||
cd "$OPWD"
|
||||
subsys="${subsys##*/}"
|
||||
if [ "$subsys" == "block" ]; then
|
||||
# parent is "block", it's a partition, move one up
|
||||
full_sysfs_path="${full_sysfs_path%/*}"
|
||||
fi
|
||||
cd $full_sysfs_path
|
||||
else
|
||||
# DASD devices
|
||||
bus="ccw"
|
||||
adapter=${D##*/}
|
||||
d="$bus-$adapter"
|
||||
RESULT=0
|
||||
# old sysfs block layout
|
||||
if [ ! -L $full_sysfs_path/device ] ; then
|
||||
if [ -f $full_sysfs_path/range ] ; then return ; fi
|
||||
full_sysfs_path="${full_sysfs_path%/*}"
|
||||
: full_sysfs_path "$full_sysfs_path"
|
||||
if [ ! -L $full_sysfs_path/device -o ! -f $full_sysfs_path/dev ] ; then
|
||||
return
|
||||
fi
|
||||
fi
|
||||
cd $full_sysfs_path/device
|
||||
fi
|
||||
D=
|
||||
;;
|
||||
*/rport-[0-9]*:[0-9]*-[0-9]*/*)
|
||||
handle_block_fc "$D"
|
||||
;;
|
||||
*/phy-[0-9]*:[0-9]*/*)
|
||||
handle_block_sas "$D"
|
||||
;;
|
||||
*/fw-host[0-9]*/*)
|
||||
handle_block_firewire "$D"
|
||||
;;
|
||||
*/host[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*)
|
||||
handle_block_scsi "$D"
|
||||
;;
|
||||
*/usb[0-9]*/[0-9]*/*)
|
||||
handle_usb "$D"
|
||||
;;
|
||||
*/pci[0-9]*:[0-9]*)
|
||||
handle_pci "$D"
|
||||
;;
|
||||
*/devices)
|
||||
D=
|
||||
;;
|
||||
*)
|
||||
: not handled
|
||||
RESULT=1
|
||||
return
|
||||
;;
|
||||
esac
|
||||
done
|
||||
|
||||
if [ "$TYPE" == "scsi_tape" ] ; then
|
||||
devname=${full_sysfs_path##*/}
|
||||
rewind="${devname%%st*}"
|
||||
mode="${devname##*st}"
|
||||
case "$mode" in
|
||||
*l)
|
||||
mode="l"
|
||||
;;
|
||||
*m)
|
||||
mode="m"
|
||||
;;
|
||||
*a)
|
||||
mode="a"
|
||||
;;
|
||||
*)
|
||||
mode=""
|
||||
;;
|
||||
esac
|
||||
if [ "$d" ]; then
|
||||
d="$d-${rewind}st${mode}"
|
||||
full_sysfs_device_path="`pwd -P`"
|
||||
cd "$OPWD"
|
||||
D=$full_sysfs_device_path
|
||||
while [ ! -z "$D" ] ; do
|
||||
case "$D" in
|
||||
*/ide[0-9]/[0-9].[0-9]*|*/ide[0-9][0-9]/[0-9][0-9].[0-9]*)
|
||||
handle_ide "$D"
|
||||
;;
|
||||
*/css0/*)
|
||||
if [ -r $full_sysfs_device_path/wwpn ]; then
|
||||
read wwpn < $full_sysfs_device_path/wwpn
|
||||
fi
|
||||
if [ -r $full_sysfs_device_path/fcp_lun ]; then
|
||||
read lun < $full_sysfs_device_path/fcp_lun
|
||||
fi
|
||||
if [ -r $full_sysfs_device_path/hba_id ]; then
|
||||
read bus_id < $full_sysfs_device_path/hba_id
|
||||
fi
|
||||
if [ "$bus_id" -a "$wwpn" -a "$lun" ]; then
|
||||
# S/390 zfcp adapter
|
||||
d="ccw-$bus_id-zfcp-$wwpn:$lun"
|
||||
RESULT=0
|
||||
else
|
||||
# DASD devices
|
||||
bus="ccw"
|
||||
adapter=${D##*/}
|
||||
d="$bus-$adapter"
|
||||
RESULT=0
|
||||
fi
|
||||
D=
|
||||
;;
|
||||
*/rport-[0-9]*:[0-9]*-[0-9]*/*)
|
||||
handle_fc "$D"
|
||||
;;
|
||||
*/phy-[0-9]*:[0-9]*/*)
|
||||
handle_sas "$D"
|
||||
;;
|
||||
*/fw-host[0-9]*/*)
|
||||
handle_firewire "$D"
|
||||
;;
|
||||
*/host[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*)
|
||||
handle_scsi "$D"
|
||||
;;
|
||||
*/usb[0-9]*/[0-9]*/*)
|
||||
handle_usb "$D"
|
||||
;;
|
||||
*/pci[0-9]*:[0-9]*)
|
||||
handle_pci "$D"
|
||||
;;
|
||||
*/devices)
|
||||
D=
|
||||
;;
|
||||
*)
|
||||
: not handled
|
||||
RESULT=1
|
||||
return
|
||||
;;
|
||||
esac
|
||||
done
|
||||
if [ "$TYPE" == "scsi_tape" ] ; then
|
||||
devname=${full_sysfs_path##*/}
|
||||
rewind="${devname%%st*}"
|
||||
mode="${devname##*st}"
|
||||
case "$mode" in
|
||||
*l)
|
||||
mode="l"
|
||||
;;
|
||||
*m)
|
||||
mode="m"
|
||||
;;
|
||||
*a)
|
||||
mode="a"
|
||||
;;
|
||||
*)
|
||||
mode=""
|
||||
;;
|
||||
esac
|
||||
if [ "$d" ]; then
|
||||
d="$d-${rewind}st${mode}"
|
||||
fi
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
case "$TYPE" in
|
||||
block)
|
||||
handle_block
|
||||
echo "ID_PATH=$d"
|
||||
;;
|
||||
scsi_tape)
|
||||
handle_block
|
||||
echo "ID_PATH=$d"
|
||||
;;
|
||||
input)
|
||||
handle_usb $SYSFS$DEVPATH/device
|
||||
echo "ID_PATH=$d"
|
||||
;;
|
||||
*)
|
||||
RESULT=1
|
||||
;;
|
||||
block)
|
||||
handle_device
|
||||
echo "ID_PATH=$d"
|
||||
;;
|
||||
scsi_tape)
|
||||
handle_device
|
||||
echo "ID_PATH=$d"
|
||||
;;
|
||||
input)
|
||||
handle_device
|
||||
echo "ID_PATH=$d"
|
||||
;;
|
||||
*)
|
||||
RESULT=1
|
||||
;;
|
||||
esac
|
||||
|
||||
exit $RESULT
|
||||
|
||||
Loading…
Reference in New Issue
Block a user