Re: Yaboot
- To: debian-powerpc@lists.debian.org
- Subject: Re: Yaboot
- From: Joseph Jezak <josejx@gentoo.org>
- Date: Mon, 14 Feb 2011 09:04:42 -0500
- Message-id: <4D59367A.5030304@gentoo.org>
- In-reply-to: <20101202163634.GS8340@roxor.cx>
- References: <7xHAw0wS.1290860571.3764970.jjhdiederen@pop3.versatel.nl> <1291040950.2906.53.camel@nsk> <1291067118-sup-5878@meteor.durcheinandertal.local> <1291079821.2906.83.camel@nsk> <20101201221051.GP8340@roxor.cx> <4CF74B1A.9050601@physics.harvard.edu> <4CF7C207.2010208@gentoo.org> <20101202163634.GS8340@roxor.cx>
On 12/02/10 11:36, Aurélien GÉRÔME wrote:
> Hi Joseph,
>
> On Thu, Dec 02, 2010 at 10:57:59AM -0500, Joseph Jezak wrote:
>> Sorry for not playing a larger role in getting this taken care of, I've
>> been really busy with other things.
> Sure, no problem.
>
>> The code that I posted was not finished, I know. When I posted it to the
> It is an excellent starting point though.
>
>> yaboot mailing list, I was looking for testing and some feedback as to
>> the approach I took. I have not seen a report of the code breaking where
>> the old ofpath worked or a good reason to keep the old ofpath code
>> around besides the fear of breaking things. However, I do also
>> understand the desire to not rock the boat, especially from Debian's
>> perspective.
>>
>> In any case, if I were to integrate my code with the old ofpath, are
>> there enough people to test it with any confidence over the new version
>> I wrote? Does anyone actually want this? What would be the best solution?
> I actually think it is a good idea, removing the cruft is always
> possible later. And using the ideas behind your code in an attempt
> to add sysfs support to the current ofpath seems to be working great
> so far on the G5, G4, and G3 PowerMacs I have access to.
>
> I am more worried about IBM machines though.
>
> I could test on Pegasos and Efika, but is anyone really using Yaboot
> on those? Because, in the past, Sven made SmartFirmware directly
> load Linux and D-I followed that spirit.
>
> I actually think Milan has a great idea to ask for tarballs of
> device-trees and sysfs info. It would be nice if those could be
> uploaded to the BTS for public reference and perhaps regression tests.
>
> Cheers,
Hi Debian folks!
I've finally gotten around to patching the existing ofpath as requested
here. If I could get some testing, that would be greatly appreciated!
I've attached the whole ofpath program here. The patch against the
yaboot git head can be found on the yaboot mailing list.
Thanks,
-Joe
#! /bin/sh
###############################################################################
##
## ofpath: determine OpenFirmware path from unix device node
## Copyright (C) 2000, 2001, 2002, 2003 Ethan Benson
##
## Portions based on show_of_path.sh:
##
## Copyright (C) 2000 Olaf Hering <olh@suse.de>
##
## This program is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License
## as published by the Free Software Foundation; either version 2
## of the License, or (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
##
###############################################################################
PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin"
PRG="${0##*/}"
VERSION=1.0.7
DEBUG=0
export LC_COLLATE=C
## --version output.
version()
{
echo \
"$PRG $VERSION
Written by Ethan Benson
Portions based on show_of_path.sh written by Olaf Hering
Copyright (C) 2000, 2001, 2002, 2003 Ethan Benson
Portions Copyright (C) 2000 Olaf Hering
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
}
## --help output.
usage()
{
echo \
"Usage: $PRG [OPTION]... FILE
Find OpenFirmware device path from unix device node.
--debug print boring junk only useful for debugging
-h, --help display this help and exit
-V, --version output version information and exit"
}
## a small seq replacement, seq is not present on boot/rescue floppies.
smallseq()
{
local v="$1"
local n=1
echo 1
while [ "$v" -gt 1 ] ; do
echo "$(($n + 1))"
local n="$(($n + 1))"
local v="$(($v - 1))"
done
return 0
}
## a kludge to replace wc -l, wc is not present on boot/rescue
## floppies. max file is 145 lines, 3 hosts * 16 devs each * 3 lines
## per device, + 1 "Attached Devices:" line.
linecount()
{
if [ $# = 0 ] ; then
local file="$(cat)"
local v="$file"
else
local file="$(cat $1)"
local v="$file"
fi
if [ -z "$file" ] ; then
echo 0
return 0
fi
## use real wc if available
if (command -v wc > /dev/null 2>&1) ; then
if [ -x `command -v wc` ] ; then
lines="$(echo "$file" | wc -l)"
if [ $? = 0 ] ; then
echo $lines
unset lines
return 0
fi
fi
fi
while true ; do
for i in `smallseq 145` ; do
local b="$(echo "$file" | tail -n $i)"
if [ "$v" = "$b" ] ; then
echo "$i"
break 2
fi
done
done
return 0
}
## small tr replacment which handles a specific need of this script.
smalltr()
{
case "$1" in
a) echo 1 ;; b) echo 2 ;; c) echo 3 ;; d) echo 4 ;; e) echo 5 ;; f) echo 6 ;;
g) echo 7 ;; h) echo 8 ;; i) echo 9 ;; j) echo 10 ;; k) echo 11 ;; l) echo 12 ;;
m) echo 13 ;; n) echo 14 ;; o) echo 15 ;; p) echo 16 ;;
1) echo a ;; 2) echo b ;; 3) echo c ;; 4) echo d ;; 5) echo e ;;
6) echo f ;; 7) echo g ;; 8) echo h ;; 9) echo i ;; 10) echo j ;;
11) echo k ;; 12) echo l ;; 13) echo m ;; 14) echo n ;; 15) echo o ;;
16) echo p ;;
esac
return 0
}
## replacment for grep -l which is not supported by busybox grep.
## echo $(cat..) hack needed because busybox grep barfs with `line too
## long' when fed /proc files. the for loop is needed since busybox
## grep seems to have somewhat broken regexp support.
## usage: lgrep filename regexp regexp ...
lgrep()
{
local f="$1"
shift
for i in "$@" ; do
echo "$(cat "$f")" | grep -q "$i" && echo "$f" && break
done
return 0
}
## if readlink is missing use a kludge
if (command -v readlink > /dev/null 2>&1) ; then
true
else
readlink()
{
local SYMTARGET="$(v=`ls -l "$1" 2>/dev/null` ; echo ${v##*> })"
if [ -n "$SYMTARGET" ] ; then
echo "$SYMTARGET"
return 0
else
return 1
fi
}
fi
## a function to print relevant scsi host path when there is more then
## one. this function also takes care of stripping off the trailing
## /compatible.
printhost()
{
case "$1" in
1)
echo "${2%/*}"
;;
2)
echo "${3%/*}"
;;
3)
echo "${4%/*}"
;;
4)
echo "${5%/*}"
;;
esac
return 0
}
## this finds information we need on both newworld and oldworld macs.
## mainly what scsi host a disk is attached to.
scsiinfo()
{
## see if system has scsi at all
if [ ! -f /proc/scsi/scsi ] ; then
local kver="$(uname -r)"
case "$kver" in
2.5.*|2.6.*)
if [ -d /sys/bus/scsi/devices -a \
-n "$(ls /sys/bus/scsi/devices 2>/dev/null)" ] ; then
echo 1>&2 "$PRG: /proc/scsi/scsi does not exist"
echo 1>&2 "$PRG: Make sure you compiled your kernel with CONFIG_SCSI_PROC_FS=y"
return 1
fi
;;
esac
echo 1>&2 "$PRG: /dev/$DEVNODE: Device not configured"
return 1
fi
## first we have to figure out the SCSI ID, have to do that
## anyway [to] find the attached scsi disks = "Direct-Access" and
## stop at sda=1 sdb=2 or whatever count in 3 lines steps
## get last letter of device node, ie sda -> a
SUBNODE=${DEVNODE##*sd}
## turn SUBNODE above into a number starting at 1, ie a -> 1
SUBDEV="$(smalltr $SUBNODE)"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: SUBNODE=$SUBNODE SUBDEV=$SUBDEV"
DEVCOUNT=0
## copy scsi file into a variable removing "Attached Devices"
## which is the first line. this avoids a lot of
## [incmopatible] crap later, and improves readability.
## find number of lines once and recycle that number, to save
## some time (linecount is a bit slow). subtract one line
## to scrap Attached Devices:
SCSILINES="$(($(linecount /proc/scsi/scsi) - 1))"
if [ "$SUBDEV" -gt "$(cat /proc/scsi/scsi | grep Direct-Access | linecount)" ] ; then
echo 1>&2 "$PRG: /dev/$DEVNODE: Device not configured"
return 1
fi
PROCSCSI="$(cat /proc/scsi/scsi | tail -n $SCSILINES)"
for i in $(smallseq $(($SCSILINES / 3))) ; do
## put every scsi device into one single line
DEVINFO="$(echo "$PROCSCSI" | head -n $(($i * 3)) | tail -n 3)"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVINFO=$DEVINFO"
## cut the type field, expect "Direct-Access" later.
DEVTYPE="$(v=$(echo ${DEVINFO##*Type: }) ; echo ${v%% *})"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVTYPE=$DEVTYPE"
## get the device id.
DEVID="$(v=$(echo ${DEVINFO##*Id: }) ; n=$(echo ${v%% *}) ; echo ${n#*0})"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVID=$DEVID"
## get the scsi host id.
DEVHOST="$(v=$(echo ${DEVINFO##*Host: scsi}) ; echo ${v%% *})"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVHOST=$DEVHOST"
if [ "$DEVTYPE" = "Direct-Access" ] || [ "$DEVTYPE" = "Direct-Access-RBC" ] ; then
DEVCOUNT="$(($DEVCOUNT + 1))"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVCOUNT=$DEVCOUNT"
if [ "$SUBDEV" = "$DEVCOUNT" ] ; then
DEVICE_HOST=$DEVHOST
DEVICE_ID=$DEVID
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVICE_HOST=$DEVICE_HOST"
break
fi
fi
done
## figure out what the scsi driver is, it is /proc/scsi/dirname.
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVICE_HOST=$DEVICE_HOST"
SCSI_DRIVER="$(x=`ls /proc/scsi/*/$DEVICE_HOST 2>/dev/null | cat` ; y=`echo ${x##*proc/scsi/}` ; echo ${y%%/*})"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: SCSI_DRIVER=$SCSI_DRIVER"
## figure out which host we found.
SCSI_HOSTNUMBER="$(v=`ls /proc/scsi/$SCSI_DRIVER/* 2>/dev/null | cat | grep -n "$DEVICE_HOST\>"` ; echo ${v%%:*})"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: SCSI_HOSTNUMBER=$SCSI_HOSTNUMBER"
return 0
}
## generic function that can find OF device paths for scsi devices,
## must be run after scsiinfo().
scsi_ofpath()
{
case "$SCSI_DRIVER" in
aic7xxx)
HOST_LIST="$(for i in `find /proc/device-tree -name compatible` ; do
lgrep "$i" "^ADPT" "^pci900[45]" "^pciclass,01000" ; done)"
DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
echo "${DEVICE_PATH##*device-tree}/@$DEVICE_ID:$PARTITION"
;;
sym53c8xx)
HOST_LIST="$(for i in `find /proc/device-tree -name compatible` ; do
lgrep "$i" "^Symbios" "^pci1000" "^pciclass,01000" ; done)"
DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
echo "${DEVICE_PATH##*device-tree}/@$DEVICE_ID:$PARTITION"
;;
mesh)
HOST_LIST="$(for i in `find /proc/device-tree -name compatible` ; do
lgrep "$i" "mesh" ; done)"
DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
echo "${DEVICE_PATH##*device-tree}/@$DEVICE_ID:$PARTITION"
;;
ata_k2|sata_svw)
#Not all G5 device trees have a compatible "k2-sata" node
#per channel use parent
HOST_LIST="$(for i in `find /proc/device-tree -name compatible ` ; do
lgrep "$i" "k2-s-ata" ; done | sort)"
DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
K2_DEVICE_ID=0
while [ "$DEVICE_PATH" = "" ] ; do
SCSI_HOSTNUMBER=`expr $SCSI_HOSTNUMBER - 1`
let "K2_DEVICE_ID += 1"
DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
done
echo "${DEVICE_PATH##*device-tree}/k2-sata@$K2_DEVICE_ID/disk@0:$PARTITION"
;;
usb-storage)
HOST_LIST="$(for i in `find /proc/device-tree -name name | grep usb` ; do
lgrep "$i" "disk" ; done)"
DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
echo "${DEVICE_PATH##*device-tree}:$PARTITION"
;;
sbp2|"")
# sbp-2 driver may not have a dir in /proc/scsi
HOST_LIST="$(for i in `find /proc/device-tree -name name` ; do
lgrep "$i" "sbp-2" ; done)"
if [ "$SCSI_HOSTNUMBER" = "" ] ; then
SCSI_HOSTNUMBER=1
fi
DEVICE_PATH="$(printhost $SCSI_HOSTNUMBER $HOST_LIST)"
echo "${DEVICE_PATH##*device-tree}/disk@0:$PARTITION"
;;
*)
echo 1>&2 "$PRG: Driver: $SCSI_DRIVER is not supported"
echo ""
;;
esac
echo ""
}
### If scsi_ofpath can't find anything, try a new method
scsi_sys_ofpath() {
### Get the sysfs mount point
local SYS="$(m=`grep '.* .* sysfs ' /proc/mounts | head -n 1` ; echo `d=${m#* };echo ${d%% *}`)";
if [ -z "$SYS" -o ! -d "$SYS" ] ; then
echo 1>&2 "$PRG: Unable to determine sysfs mountpoint";
echo "";
return;
fi
### Get the device name and dereference it to support devices like /dev/cdrom1
local REAL_DEV=$(readlink -f "$DEVICE")
REAL_DEV=$(basename "$REAL_DEV")
if [ "$REAL_DEV" == "" ] || [ ! -e "/dev/$REAL_DEV" ]; then
echo 1>&2 "ofpath: Invalid device: /dev/$REAL_DEV";
echo "";
return;
fi
### Get the partition if it exists
case ${REAL_DEV} in
sd*) PARTITION="${REAL_DEV#sd?}" ;;
### No partition for sr/sg devices
sr*) PARTITION="${REAL_DEV#sr?}" ;;
sg*) PARTITION="${REAL_DEV#sg?}" ;;
*) echo 1>&2 "ofpath: Unknown device string."; return "";;
esac
### Get the disk device name
DISK_NAME="${REAL_DEV%%${PARTITION}}";
### Find the devspec for the controller
DEVSPEC=$(cd -P "$SYS/block/${DISK_NAME}/device" && pwd)
if [ "${DEVSPEC}" == "" ]; then
echo 1>&2 "ofpath: Unable to determine device path!";
echo "";
return;
fi
### Get the OF Path of the controller
CONTROLLER_PATH=$(cat "${DEVSPEC}/../../../devspec");
if [ "$CONTROLLER_PATH" == "" ]; then
echo 1>&2 "ofpath: Unable to find the controller path!";
echo "";
return;
fi
### Generate the disk number and partition info
DISK_NO="$(cd ${DEVSPEC}/../; pwd)";
DISK_NO="${DISK_NO##*:}";
DISK_NO="disk@${DISK_NO}:";
### We need to get the controller port path if it has one
if [ ! -d "/proc/device-tree/$CONTROLLER_PATH/disk" ] && [ ! -d "/proc/device-tree/$CONTROLLER_PATH/$DISK_NO" ]; then
### FIXME Does every scsi device uses the host nomenclature?
PORT="$(cd ${DEVSPEC}/../../; pwd)";
PORT="${PORT##*host}";
CTL_PORT="${CONTROLLER_PATH##*/}";
CTL_PORT="${CTL_PORT%%-root*}";
PORT="$CTL_PORT@$PORT";
fi
### Add the partition information if required
if [ ! $PARTITION == "" ]; then
DISK_NO="${DISK_NO}${PARTITION}";
fi
### Build the OF Path and print it out
if [ "$PORT" == "" ]; then
echo "$CONTROLLER_PATH/$DISK_NO";
else
echo "$CONTROLLER_PATH/$PORT/$DISK_NO";
fi
return;
}
ide_ofpath()
{
if [ ! -L "/proc/ide/$DEVNODE" ] ; then
echo 1>&2 "$PRG: /dev/$DEVNODE: Device not configured"
return 1
fi
local IDEBUS="$(v=`readlink /proc/ide/$DEVNODE` ; echo ${v%%/*} )"
if [ -z "$IDEBUS" ] ; then
echo 1>&2 "$PRG: BUG: IDEBUS == NULL"
return 1
fi
case "$(uname -r)" in
2.5.*|2.6.0*|2.6.1|2.6.1-*|2.6.2|2.6.2-*)
echo 1>&2 "$PRG: Linux kernel `uname -r` is not supported"
return 1
;;
2.6.*|2.7.*)
if ! (grep -q '.* .* sysfs ' /proc/mounts 2> /dev/null) ; then
echo 1>&2 "$PRG: sysfs must be mounted for ofpath to support this system"
return 1
fi
local SYS="$(m=`grep '.* .* sysfs ' /proc/mounts | head -n 1` ; echo `d=${m#* };echo ${d%% *}`)"
if [ -z "$SYS" -o ! -d "$SYS" ] ; then
echo 1>&2 "$PRG: Unable to determine sysfs mountpoint"
return 1
fi
local OF1275IDE="${SYS}/block/${DEVNODE}/device/../../devspec"
;;
*)
local OF1275IDE="/proc/ide/$IDEBUS/devspec"
;;
esac
if [ ! -f "$OF1275IDE" ] ; then
case "$(cat /proc/device-tree/model)" in
PowerMac3*|PowerMac4*|PowerMac5*|PowerMac6*|PowerMac7*|RackMac*)
local CDROM="$(grep "^drive name:" /proc/sys/dev/cdrom/info 2> /dev/null | grep $DEVNODE)"
if [ -z "$CDROM" ] ; then
echo 1>&2 "$PRG: WARNING: Your kernel is too old for proper support, device may be innaccurate."
echo "ultra2:$PARTITION"
else
echo "cd:$PARTITION"
fi
;;
*)
local CDROM="$(grep "^drive name:" /proc/sys/dev/cdrom/info 2> /dev/null | grep $DEVNODE)"
if [ -z "$CDROM" ] ; then
if [ "$DEVNODE" = hda ] ; then
echo "hd:$PARTITION"
else
echo "ultra1:$PARTITION"
fi
else
echo "cd:$PARTITION"
fi
;;
esac
else
local DEVSPEC="$(cat $OF1275IDE)"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVSPEC=$DEVSPEC"
if [ -z "$DEVSPEC" ] ; then
echo 1>&2 "$PRG: KERNEL BUG: $OF1275IDE exists, but is empty"
return 1
fi
if [ ! -f "/proc/ide/${IDEBUS}/channel" ] ; then
echo 1>&2 "$PRG: KERNEL BUG: /proc/ide/${IDEBUS}/channel does not exist"
return 1
fi
case "$(cat /proc/device-tree${DEVSPEC}/device_type 2> /dev/null)" in
ide|ata)
local MASTER="/disk@0"
local SLAVE="/disk@1"
;;
pci-ide|pci-ata)
local MASTER="/@$(cat /proc/ide/${IDEBUS}/channel)/disk@0"
local SLAVE="/@$(cat /proc/ide/${IDEBUS}/channel)/disk@1"
;;
scsi) ## some lame controllers pretend they are scsi, hopefully all kludges are created equal.
local MASTER="/@$(($(cat /proc/ide/${IDEBUS}/channel) * 2 + 0))"
local SLAVE="/@$(($(cat /proc/ide/${IDEBUS}/channel) * 2 + 1))"
;;
spi)
local MASTER="/disk@$(cat /proc/ide/${IDEBUS}/channel),0"
local SLAVE="/disk@$(cat /proc/ide/${IDEBUS}/channel),1"
;;
*)
echo 1>&2 "$PRG: Unsupported IDE device type: \"$(cat /proc/device-tree${DEVSPEC}/device_type 2> /dev/null)\""
return 1
;;
esac
case "$DEVNODE" in
hda|hdc|hde|hdg|hdi|hdk|hdm|hdo)
echo "${DEVSPEC}${MASTER}:$PARTITION"
return 0
;;
hdb|hdd|hdf|hdh|hdj|hdl|hdn|hdp)
echo "${DEVSPEC}${SLAVE}:$PARTITION"
return 0
;;
*)
echo 1>&2 "$PRG: /dev/$DEVNODE is not supported"
return 1
;;
esac
fi
}
## figure out the OpenFirmware device path for newworld macs.
## sd* scsi disks , hd* ide disks.
newworld()
{
local SCSI_PATH=""
case "$DEVNODE" in
sd*|sr*|sg*)
### Run the new sysfs version, this version will get libata results
SCSI_PATH=`scsi_sys_ofpath`
### Check if we got a result from the last call and if not, run the old code
if [ "${SCSI_PATH}" == "" ]; then
## use common scsiinfo function to get info we need.
scsiinfo || return 1
## now we have the data for /@$DEVID:$PARTITION
## find the actual OF path.
SCSI_PATH=`scsi_ofpath`
fi
### Echo the found path
echo ${SCSI_PATH}
;;
hd*)
ide_ofpath || return 1
;;
*)
echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
return 1
;;
esac
return 0
}
oldworld()
{
## for some reason 2.4 kernels put OF aliases in aliases@0/ instead of plain aliases/
if [ -d "/proc/device-tree/aliases" ] ; then
local ALIASES="aliases"
elif [ -d "/proc/device-tree/aliases@0" ] ; then
local ALIASES="aliases@0"
else
echo 1>&2 "$PRG: Cannot find OpenFirmware aliases directory in /proc/device-tree/"
return 1
fi
local MODEL="$(cat /proc/device-tree/compatible)"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: Oldworld subarch: $MODEL"
case "$MODEL" in
AAPL,7300*|AAPL,7500*|AAPL,8500*|AAPL,9500*|AAPL,\?\?\?\?*)
case "$DEVNODE" in
sd*)
scsiinfo || return 1
case "$SCSI_DRIVER" in
mesh)
echo $(cat /proc/device-tree/$ALIASES/scsi-int)/sd\@$DEVICE_ID:$PARTITION
;;
53c94)
echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITION
;;
*)
echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
return 1
;;
esac
;;
*)
echo 1>&2 "$PRG: Unsupported device: /dev/$DEVNODE"
return 1
;;
esac
;;
AAPL,e407*)
case "$DEVNODE" in
sd*)
scsiinfo || return 1
case "$SCSI_DRIVER" in
mesh)
echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITION
;;
*)
echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
return 1
;;
esac
;;
hda*)
echo $(cat /proc/device-tree/$ALIASES/ata)/ATA-Disk\@0:$PARTITION
;;
hdb*)
echo $(cat /proc/device-tree/$ALIASES/ata)/ATA-Disk\@1:$PARTITION
;;
hd*)
echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
;;
esac
;;
AAPL,e826*)
case "$DEVNODE" in
sd*)
scsiinfo || return 1
case "$SCSI_DRIVER" in
mesh)
echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITION
;;
*)
echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
return 1
;;
esac
;;
hda*)
echo $(cat /proc/device-tree/$ALIASES/ata)/ata-disk\@0:$PARTITION
;;
hdb*)
echo $(cat /proc/device-tree/$ALIASES/ata)/ata-disk\@1:$PARTITION
;;
hd*)
echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
;;
esac
;;
AAPL,Gossamer*|AAPL,PowerMac\ G3*)
case "$DEVNODE" in
sd*)
scsiinfo || return 1
case "$SCSI_DRIVER" in
mesh)
echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITION
;;
*)
echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
return 1
;;
esac
;;
hda*)
echo $(cat /proc/device-tree/$ALIASES/ide0)/ata-disk\@0:$PARTITION
;;
hdb*)
echo $(cat /proc/device-tree/$ALIASES/ide0)/ata-disk\@1:$PARTITION
;;
hdc*)
echo $(cat /proc/device-tree/$ALIASES/ide1)/ata-disk\@0:$PARTITION
;;
hdd*)
echo $(cat /proc/device-tree/$ALIASES/ide1)/ata-disk\@1:$PARTITION
;;
hd*)
echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
;;
esac
;;
AAPL,PowerBook1998*)
if [ -f /proc/device-tree/$ALIASES/ata0 ] ; then
local ATA0=ata0
else
local ATA0=ide0
fi
if [ -f /proc/device-tree/$ALIASES/ata1 ] ; then
local ATA1=ata1
else
local ATA1=bay-ata1
fi
case "$DEVNODE" in
sd*)
scsiinfo || return 1
case "$SCSI_DRIVER" in
mesh)
echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITON
;;
*)
echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
return 1
;;
esac
;;
hda*)
echo $(cat /proc/device-tree/$ALIASES/$ATA0)/ata-disk\@0:$PARTITION
;;
hdb*)
echo $(cat /proc/device-tree/$ALIASES/$ATA0)/ata-disk\@1:$PARTITION
;;
hdc*)
echo $(cat /proc/device-tree/$ALIASES/$ATA1)/atapi-disk\@0:$PARTITION
;;
hdd*)
echo $(cat /proc/device-tree/$ALIASES/$ATA1)/atapi-disk\@1:$PARTITION
;;
*)
echo 1>&2 "$PRG: Unsupported device: /dev/$DEVNODE"
return 1
;;
esac
;;
AAPL,3400/2400*)
case "$DEVNODE" in
sd*)
scsiinfo || return 1
case "$SCSI_DRIVER" in
mesh)
echo $(cat /proc/device-tree/$ALIASES/scsi-int)/sd\@$DEVICE_ID:$PARTITON
;;
53c94)
echo $(cat /proc/device-tree/$ALIASES/scsi)/sd\@$DEVICE_ID:$PARTITON
;;
*)
echo 1>&2 "$PRG: Driver $SCSI_DRIVER is not supported"
return 1
;;
esac
;;
hda*)
echo $(cat /proc/device-tree/$ALIASES/ata0)/ata-disk\@0:$PARTITION
;;
hdb*)
echo $(cat /proc/device-tree/$ALIASES/ata0)/ata-disk\@1:$PARTITION
;;
hdc*)
echo $(cat /proc/device-tree/$ALIASES/ata1)/atapi-disk\@0:$PARTITION
;;
hdd*)
echo $(cat /proc/device-tree/$ALIASES/ata1)/atapi-disk\@1:$PARTITION
;;
hde*)
echo $(cat /proc/device-tree/$ALIASES/ata2):$PARTITION
;;
hdf*)
echo $(cat /proc/device-tree/$ALIASES/ata3):$PARTITION
;;
*)
echo 1>&2 "$PRG: Unsupported device: /dev/$DEVNODE"
return 1
;;
esac
;;
*)
echo 1>&2 "$PRG: This machine is not supported: $MODEL"
return 1
;;
esac
return 0
}
## find OpenFirmware device path for IBM CHRP hardware (scsi only)
chrp()
{
case "$DEVNODE" in
sd*)
## use common scsiinfo function to get info we need.
scsiinfo || return 1
## now we have the data for /@$DEVID:$PARTITION
## find the actual OF path.
scsi_ofpath || return 1
;;
*)
echo 1>&2 "$PRG: Device: /dev/$DEVNODE is not supported"
return 1
;;
esac
return 0
}
## If we get lame devfs name, we need to make it foad
ckdevfs()
{
case "$1" in
/dev/ide/*|/dev/scsi/*|/dev/discs/*)
return 0
;;
*)
return 1
;;
esac
}
## convert devfs names into normal short ones, written by Tom Rini.
fixdevfs()
{
## get partition number, if any
local PARTNUM="${1##*[a-z]}"
## Find the bus type.
local TYPE="$(v=${1#/dev/} ; echo ${v%/host*})"
## Find the host number.
local HOST="$(v=${1#/dev/*/host} ; echo ${v%/bus*})"
## Find the bus number.
local BUS="$(v=${1#/dev/*/bus} ; echo ${v%/tar*})"
## Find the target.
local TARGET="$(v=${1#/dev/*/target} ; echo ${v%/lun*})"
case "$TYPE" in
ide)
case "$HOST" in
0)
case "$TARGET" in
0)
local DEV=hda
;;
1)
local DEV=hdb
;;
esac
;;
1)
case "$TARGET" in
0)
local DEV=hdc
;;
1)
local DEV=hdd
;;
esac
;;
*)
echo 1>&2 "$PRG: $1: Unable to translate this device, try again without devfs."
return 1
esac
local DEV="${DEV}${PARTNUM}"
echo "/dev/$DEV"
return 0
;;
scsi)
local LUN="$(v=${1#/dev/*/lun} ; echo ${v%/*})"
## In this case, we need to figure out what number our device is
local DEVCOUNT=0
## copy scsi file into a variable removing "Attached Devices"
## which is the first line. this avoids a lot of
## [incmopatible] crap later, and improves readability.
## find number of lines once and recycle that number, to save
## some time (linecount is a bit slow). subtract one line
## to scrap Attached Devices:
local SCSILINES="$(($(linecount /proc/scsi/scsi) - 1))"
local PROCSCSI="$(cat /proc/scsi/scsi | tail -n $SCSILINES)"
for i in $(smallseq $(($SCSILINES / 3))) ; do
## put every scsi device into one single line
local DEVINFO="$(echo "$PROCSCSI" | head -n $(($i * 3)) | tail -n 3)"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVINFO=$DEVINFO"
## cut the type field, expect "Direct-Access" later.
local DEVTYPE="$(v=$(echo ${DEVINFO##*Type: }) ; echo ${v%% *})"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVTYPE=$DEVTYPE"
if [ "$DEVTYPE" = "Direct-Access" ] || [ "$DEVTYPE" = "Direct-Access-RBC" ] ; then
## Lets find out some more information
## get the device id.
local DEVID="$(v=$(echo ${DEVINFO##*Id: }) ; n=$(echo ${v%% *}) ; echo ${n#*0})"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVID=$DEVID"
## get the device lun.
local DEVLUN="$(v=$(echo ${DEVINFO##*Lun: }) ; n=$(echo ${v%% *}) ; echo ${n#*0})"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVLUN=$DEVLUN"
## get the device channel.
local DEVCHAN="$(v=$(echo ${DEVINFO##*Channel: }) ; n=$(echo ${v%% *}) ; echo ${n#*0})"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVCHAN=$DEVCHAN"
## get the scsi host id.
local DEVHOST="$(v=$(echo ${DEVINFO##*Host: scsi}) ; echo ${v%% *})"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVHOST=$DEVHOST"
local DEVCOUNT="$(($DEVCOUNT + 1))"
[ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: fixdevfs: DEVCOUNT=$DEVCOUNT"
if [ "$DEVHOST" = "$HOST" -a "$DEVCHAN" = "$BUS" -a \
"$DEVID" = "$TARGET" -a "$DEVLUN" = "$LUN" ] ; then
local DEV="sd$(smalltr $DEVCOUNT)${PARTNUM}"
echo "/dev/$DEV"
return 0
fi
fi
done
echo 1>&2 "$PRG: $1: Unable to translate this device, try again without devfs."
return 1
;;
*)
echo 1>&2 "$PRG: Unknown bus $TYPE"
return 1
;;
esac
## we should never get here
return 1
}
## make sure that find, head and tail can be found. otherwise the
## script will silently give bogus paths. these are the only /usr/*
## utilities this script depends on.
checkutils()
{
if command -v find > /dev/null 2>&1 ; then
[ -x `command -v find` ] || FAIL=1 ; else FAIL=1 ; fi
if command -v head > /dev/null 2>&1 ; then
[ -x `command -v head` ] || FAIL=1 ; else FAIL=1 ; fi
if command -v tail > /dev/null 2>&1 ; then
[ -x `command -v tail` ] || FAIL=1 ; else FAIL=1 ; fi
if [ "$FAIL" = 1 ] ; then
echo 1>&2 "$PRG: \`find', \`head', or \`tail' could not be found, aborting."
return 1
else
return 0
fi
}
## parse command line switches.
if [ $# != 0 ] ; then
while true ; do
case "$1" in
-V|--version)
version
exit 0
;;
-h|--help)
usage
exit 0
;;
--debug)
DEBUG=1
shift
;;
-*)
echo 1>&2 "$PRG: unrecognized option \`$1'"
echo 1>&2 "$PRG: Try \`$PRG --help' for more information."
exit 1
;;
"")
echo 1>&2 "$PRG: You must specify a filename"
echo 1>&2 "Try \`$PRG --help' for more information."
exit 1
;;
*)
device="$1"
break
;;
esac
done
else
echo 1>&2 "$PRG: You must specify a /dev device"
echo 1>&2 "Try \`$PRG --help' for more information."
exit 1
fi
## check that FILE is a block device and exists.
if [ ! -e "$device" ] ; then
echo 1>&2 "$PRG: $device: No such file or directory"
exit 1
elif [ ! -b "$device" ] ; then
echo 1>&2 "$PRG: $device is not a block device"
exit 1
fi
## check that we are running on a GNU/Linux system, OSX/BSD does not
## have the same /proc stuff
if [ `uname -s` != Linux ] ; then
echo 1>&2 "$PRG: This utility will only work with GNU/Linux"
exit 1
fi
## check for ppc, i think uname -m is safe for this...
if [ `uname -m` != ppc -a `uname -m` != ppc64 ] ; then
echo 1>&2 "$PRG: This utility will only work on PowerPC hardware"
exit 1
fi
## ofpath cannot live without procfs
if [ ! -f /proc/uptime ] ; then
echo 1>&2 "$PRG: This utility requires the /proc filesystem"
exit 1
fi
## check for retarded devfs names and tell them to foad.
if ckdevfs "$device" ; then
device="$(fixdevfs $device)" || exit 1
fi
## check for newworld mac. use cat hack due to /proc wierdness.
if [ "$(v=`cat /proc/cpuinfo 2>/dev/null | grep pmac-generation` ; echo ${v##*:[ ]})" = NewWorld ] ; then
SUBARCH=NewWorld
elif [ "$(v=`cat /proc/cpuinfo 2>/dev/null | grep pmac-generation` ; echo ${v##*:[ ]})" = OldWorld ] ; then
SUBARCH=OldWorld
elif (cat /proc/cpuinfo 2>/dev/null | grep ^motherboard | grep -q AAPL) ; then
SUBARCH=OldWorld
elif (cat /proc/cpuinfo 2> /dev/null | grep ^machine | grep -q 'CHRP IBM') ; then
SUBARCH=CHRP
elif (cat /proc/cpuinfo 2>/dev/null | grep ^machine | grep -q 'CHRP Pegasos') ; then
SUBARCH=Pegasos
else
echo 1>&2 "$PRG: This machine is not yet supported"
exit 1
fi
## make sure /proc/device-tree exists
if [ ! -d /proc/device-tree ] ; then
echo 1>&2 "$PRG: /proc/device-tree does not exist"
echo 1>&2 "$PRG: Make sure you compiled your kernel with CONFIG_PROC_DEVICETREE=y"
exit 1
fi
## make sure we have what we need.
checkutils || exit 1
## get the base device node and scrap /dev/ ie /dev/hda2 -> hda
DEVICE="${device##*/}"
DEVNODE="${DEVICE%%[0-9]*}"
PARTITION="${DEVICE##*[a-z]}"
## use appropriate search for right sub arch.
case "$SUBARCH" in
# Pegasos OF seems to be NewWorld-ish enough to cope with this.
NewWorld|Pegasos)
newworld || exit 1
;;
OldWorld)
oldworld || exit 1
;;
CHRP)
chrp || exit 1
;;
esac
exit 0
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