Add a attribute in site table to set the delay time for rflash

Currently abort failure(0x81) occur during the initiate stage as
the firmware state is not stable enough after cold reset. As the
delay time is not a constant value, this change add a interface in
site table for user to set this value.

Close-issue: xcat2#471

docs/source/guides/admin-guides/references/man5/site.5.rst

@@ -235,6 +235,10 @@ site Attributes:
    snmpc:  The snmp community string that xcat should use when communicating with the
            switches.
   
+   rflash_delay:  Only for rflash command to upgrade firmware on OpenPOWER servers.
+                  This attribute is delay time to wait for the firmware initialization
+                  after cold reset. Default value is 120 in seconds. If set to 0, no delay.
+  
    ---------------------------
   INSTALL/DEPLOYMENT ATTRIBUTES
    ---------------------------

perl-xCAT/xCAT/Schema.pm

@@ -1070,6 +1070,9 @@ site => {
    "              through HMC. Default is 0.\n\n".
    " snmpc:  The snmp community string that xcat should use when communicating with the\n".
    "         switches.\n\n".
+   " rflash_delay:  Only for rflash command to upgrade firmware on OpenPOWER servers.\n".
+   "                This attribute is delay time to wait for the firmware initialization\n".
+   "                after cold reset. Default value is 120 in seconds. If set to 0, no delay.\n\n".
    " ---------------------------\n".
    "INSTALL/DEPLOYMENT ATTRIBUTES\n".
    " ---------------------------\n".

xCAT-server/lib/xcat/plugins/ipmi.pm

@@ -1692,7 +1692,10 @@ sub do_firmware_update {
     # NOTE(chenglch) some firmware may not stable enough, it can handle the ipmi session
     # request, but failed to upgrade, add sleep function as a work around here to avoid of
     # error.
-    sleep(60);
+    my $rflash_delay = 120;
+    my $delay_config = xCAT::TableUtils->get_site_attribute("rflash_delay");
+    $rflash_delay = $delay_config if defined($delay_config) and $delay_config =~ /^\d+$/;
+    sleep($rflash_delay) if $rflash_delay != 0;
     $cmd = $pre_cmd." -z 30000 hpm upgrade $hpm_file force";
     $output = xCAT::Utils->runcmd($cmd, -1);