From b08b9a3c77bafcc0c6ace608482796665084500e Mon Sep 17 00:00:00 2001 From: daniceexi Date: Sun, 30 Jun 2013 04:23:20 +0000 Subject: [PATCH] Code drop for Xeon Phi (mic) support. Ron on host to flash the mic git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/branches/2.8@16831 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd --- xCAT-server/sbin/flashmic | 201 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 201 insertions(+) create mode 100755 xCAT-server/sbin/flashmic diff --git a/xCAT-server/sbin/flashmic b/xCAT-server/sbin/flashmic new file mode 100755 index 000000000..0b0271595 --- /dev/null +++ b/xCAT-server/sbin/flashmic @@ -0,0 +1,201 @@ +#!/usr/bin/env perl + +# This script is used to flash the mics on the host. +# This script is run by xdsh from MN/SN to the host +# parameters +# -m xcatmaster +# -p the path of the mic configuration file. Generally, it's /tftpboot/xcat/miccfg/micflash.hostname + +use strict; +use IO::Socket; + +use File::Path; +use File::Copy; +use Getopt::Long; + +# enable the autoflush of stdout +select STDOUT; +$| = 1; + +my $tmppath = "/tmp/mictmp"; +my $logpath = "/var/log/xcat/"; +my $logfile = "$logpath/flash.log"; +my $micmnt = "/opt/intel/mic/mnt"; +my $flashpath = "$micmnt/opt/intel/mic/flash"; + +mkpath $tmppath; +mkpath $micmnt; +#open the log file +open (LOG, ">>$logfile") or die "Error: cannot open $logfile\n"; +print LOG "\n\n====================================================\nStart mic flashing: ".`date`."\n"; + +my ($master, $cfgpath); +GetOptions ('m=s'=>\$master, 'p=s'=>\$cfgpath); +unless ($master && $cfgpath) { + outputmsg("Error: the -m master and -p path arguments must be specified for configmic.\n", 1); +} + +# get the correct host name for the host +my $nodename; +my $masterip = `getent hosts $master | awk {'print \$1'}`; +chomp($masterip); +my $myip = `ip route get $masterip| head -n 1 | sed 's/^.*src//g' | awk {'print \$1'}`; +my $myipinfo =`getent hosts $myip`; +if ($myipinfo =~ /([^\s]+)\s+([^\s]+)\s+([^\s]+)/) { + my $n1 = $2; + my $n2 = $3; + if (length($n1) > length($n2)) { + $nodename = $n2; + } else { + $nodename = $n1; + } +} elsif ($myipinfo =~ /([^\s]+)\s+([^\s]+)/) { + $nodename = $2; +} else { + outputmsg("Error: cannot get the hostname of the host node\n", 2); +} + +# download the mic configuration file from master +my $cmd = "wget -N --waitretry=10 --random-wait -T 60 http://$master/$cfgpath/micflash.$nodename -P $tmppath"; +my ($rc, $output) = runsyscmd ($cmd, "Error: failed to download mic configuration file from $master\n", 3); + +unless (-r "$tmppath/micflash.$nodename") { + runsyscmd ("Error: cannot get the mic configuration file from http://$master/$cfgpath/micflash.$nodename\n", 4); +} + +# parse the configuration file +unless (open (CFGFILE, "<$tmppath/micflash.$nodename")) { + runsyscmd ("Error: cannot open $tmppath/micflash.$nodename\n", 5); +} + +# the configureation file should have the following format +#miclist=mic0 +#0:name=host1-mic0 +#imgpath=/install/mpss3.new + +my %miccfg; +my $miclist; +my $ospath; +while () { + if (/(\d+):(.*)/) { + my $deviceid = $1; + my @params = split (/\|/, $2); + foreach (@params) { + my ($n, $v) = split (/=/, $_); + $miccfg{$deviceid}{$n} = $v; + } + } elsif (/^miclist=(.*)/) { + $miclist = $1; + } elsif (/^imgpath=(.*)/) { + $ospath= $1; + } +} +close (CFGFILE); + +$miclist =~ s/,/ /g; + +# add the mount entry for mounting of root fs from master to /etc/fstab +# e.g. mount $master:/install/mpss3 /opt/intel/mic/mnt +$cmd = "grep $master:$ospath $micmnt /etc/fstab "; +($rc, $output) = runsyscmd ($cmd); +if ($rc) { + # not found the exact mount entry + $cmd = "grep $micmnt /etc/fstab"; + ($rc, $output) = runsyscmd ($cmd); + if (!$rc) { + # found the mount to $micmnt with another master or directory, remove the entry and umount it + my $trans = $micmnt; + $trans =~ s/\//\\\//g; + $cmd = "sed \"/$trans/d\" /etc/fstab > $tmppath/fstab.tmp"; + runsyscmd ($cmd, "Error: failed to configure fstab.\n", 6); + copy ("$tmppath/fstab.tmp", "/etc/fstab"); + $cmd = "umount -l -f $micmnt"; + runsyscmd ($cmd, "Error: failed to run umount -l -f $micmnt\n", 7); + } + $cmd = "echo \"$master:$ospath $micmnt nfs timeo=14,intr 1 2\" >>/etc/fstab"; + runsyscmd ($cmd); + $cmd = "mount -a"; + runsyscmd ($cmd); +} + +# make sure the remote flash directory is accessable +unless (-d "$flashpath") { + outputmsg("Error: cannot access the $flashpath.\n", 8); +} + +# start to flash the mic +# # +# # reset the mic to ready stat +$cmd = "micctrl -r -w $miclist"; +($rc, $output) = runsyscmd ($cmd, "Error: failed to reset mic.\n", 100); + +my $micidlist; +foreach my $micid (keys %miccfg) { + unless (grep /mic$micid: ready/, @$output) { + outputmsg("MICMSG:$miccfg{$micid}{'name'}: Error: failed to reset mic to ready stat.\n", 100); + } + $micidlist .= ",$micid"; +} + +$micidlist =~ s/^,//; + +# do the flash +$cmd = "/opt/intel/mic/bin/micflash -update $flashpath -device $micidlist"; +($rc, $output) = runsyscmd ($cmd); + +# generate the output messages +foreach (@$output) { + foreach my $line (split /\n/, $_) { + if ($line =~ /^mic(\d+):/) { + $line =~ s/^mic(\d+):/MICMSG:$miccfg{$1}{'name'}:/; + } + print $line."\n"; + } +} + +print LOG "\nFinish the mic flashing: ".`date`."====================================================\n"; + +close (LOG); + +exit 0; + +# run command +sub runsyscmd { + my $cmd = shift; + my $errmsg = shift; + my $rc = shift; + + print LOG "---------------------------------------------\n"; + print LOG "Run command: $cmd\n"; + + if (!($cmd =~ /2>&1$/)) { $cmd .= ' 2>&1'; } + my @output = `$cmd`; + + my $errcode = 0; + if ($?) { + $errcode = $? >> 8; + } + + foreach (@output) { + print LOG $_; + } + print LOG "---------------------------------------------\n"; + + if ($rc && $errcode) { + outputmsg($errmsg, $rc); + exit $rc; + } + return ($errcode, \@output); +} + +# display the output message +sub outputmsg{ + my $msg = shift; + my $rc =shift; + print LOG $msg; + print $msg; + if ($rc) { + exit $rc; + } +} +