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