diff options
Diffstat (limited to 'src/usr')
| -rw-r--r-- | src/usr/ipmi/ipmiwatchdog.C | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/usr/ipmi/ipmiwatchdog.C b/src/usr/ipmi/ipmiwatchdog.C index 3efdbfbb7..2f9f28f74 100644 --- a/src/usr/ipmi/ipmiwatchdog.C +++ b/src/usr/ipmi/ipmiwatchdog.C @@ -6,6 +6,7 @@ /* OpenPOWER HostBoot Project */ /* */ /* Contributors Listed Below - COPYRIGHT 2014,2018 */ +/* [+] Google Inc. */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -39,6 +40,7 @@ #include <ipmi/ipmiwatchdog.H> #include <ipmi/ipmiif.H> #include <sys/time.h> +#include <time.h> /******************************************************************************/ // Globals/Constants @@ -104,6 +106,18 @@ errlHndl_t resetWatchDogTimer() { errlHndl_t err_ipmi = NULL; + // Limit the amount of sent watchdog resets to once per second to make + // sure that we don't overload the BMC with resets during quickly + // completing ISTEPs. For simplicity we only compare the tv_sec so + // the grace period may be almost 2 seconds. + static uint64_t last_reset_sec; + timespec_t now; + clock_gettime(CLOCK_MONOTONIC, &now); + if (last_reset_sec + 1 >= now.tv_sec) + { + return NULL; + } + last_reset_sec = now.tv_sec; // reset command does not take any request data size_t len = 0; |
