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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/isteps/istep08/sbe_extract_rc_handler.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2017 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/**
* @file sbe_extract_rc_handler.H
*
* Handle a SBE extract rc error. We use a switch-case to determine
* what action to take, and a finite state machine to control the
* threshold actions.
*/
/*****************************************************************************/
// Includes
/*****************************************************************************/
#include <stdint.h>
#include <trace/interface.H>
#include <errl/errlentry.H>
#include <errl/errlmanager.H>
#include <p9_extract_sbe_rc.H>
#include <fapi2/target.H>
#include <fapi2/plat_hwp_invoker.H>
#include <isteps/istep_reasoncodes.H>
#include <initservice/isteps_trace.H>
#include <errl/errludtarget.H>
#include <p9_start_cbs.H>
#include "sbe_extract_rc_handler.H"
/* array and enum must be in sync */
P9_EXTRACT_SBE_RC::RETURN_ACTION (* state[])(TARGETING::Target * i_target,
uint8_t i_prev_error) =
{ same_side_retry_state, other_side_state,
working_exit_state, failing_exit_state };
enum state_codes { same_side_retry, other_side,
working_exit, failing_exit };
struct transition
{
enum state_codes src_state;
uint8_t ret_code;
enum state_codes dst_state;
};
/* transistions from end states aren't needed */
struct transition state_transitions[] = {
{ same_side_retry, 0, working_exit },
{ same_side_retry, 1, other_side },
{ other_side, 0, working_exit },
{ other_side, 1, failing_exit }
};
enum state_codes get_next_state( enum state_codes i_src, uint8_t i_rc )
{
return (state_transitions[ i_src*2 + i_rc ]).dst_state;
}
void sbe_threshold_handler( bool i_procSide,
TARGETING::Target * i_target,
P9_EXTRACT_SBE_RC::RETURN_ACTION i_initialAction,
uint8_t i_previousError )
{
// Note: This is set up as a finite state machine since all actions are
// connected and most of them lead to another.
state_codes cur_state = same_side_retry;
// The initial state depends on our inputs
if( i_procSide )
{
cur_state = other_side;
}
// Setup the rest of the FSM
P9_EXTRACT_SBE_RC::RETURN_ACTION l_returnedAction;
P9_EXTRACT_SBE_RC::RETURN_ACTION (*state_fcn)(TARGETING::Target * i_target,
uint8_t i_prev_error);
P9_EXTRACT_SBE_RC::RETURN_ACTION l_currentAction = i_initialAction;
// Begin FSM
for(;;)
{
state_fcn = state[cur_state];
l_returnedAction = state_fcn(i_target, l_currentAction);
if( cur_state == working_exit || cur_state == failing_exit)
{
break;
}
l_currentAction = l_returnedAction;
// If the returned action was 0, the return is a pass: 0,
// Else, the SBE did not start cleanly and we continue
cur_state = get_next_state(cur_state,
!(P9_EXTRACT_SBE_RC::ERROR_RECOVERED == l_returnedAction));
}
return;
}
P9_EXTRACT_SBE_RC::RETURN_ACTION same_side_retry_state(
TARGETING::Target * i_target,
uint8_t i_prev_error)
{
return P9_EXTRACT_SBE_RC::ERROR_RECOVERED; //pass
}
P9_EXTRACT_SBE_RC::RETURN_ACTION other_side_state(
TARGETING::Target * i_target,
uint8_t i_prev_error)
{
return P9_EXTRACT_SBE_RC::ERROR_RECOVERED; //pass
}
P9_EXTRACT_SBE_RC::RETURN_ACTION working_exit_state(
TARGETING::Target * i_target,
uint8_t i_prev_error)
{
return P9_EXTRACT_SBE_RC::ERROR_RECOVERED; //pass
}
P9_EXTRACT_SBE_RC::RETURN_ACTION failing_exit_state(
TARGETING::Target * i_target,
uint8_t i_prev_error)
{
return P9_EXTRACT_SBE_RC::ERROR_RECOVERED; //pass
}
// end FSM
void proc_extract_sbe_handler( TARGETING::Target * i_target,
uint8_t i_previous_error, uint8_t i_current_error)
{
TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace, ENTER_MRK
"proc_extract_sbe_handler error: %llx",i_current_error);
errlHndl_t l_errl = NULL;
/*@
* @errortype
* @severity ERRORLOG::ERRL_SEV_INFORMATIONAL
* @moduleid ISTEP::MOD_SBE_EXTRACT_RC_HANDLER
* @reasoncode ISTEP::RC_SBE_EXTRACT_RC_ERROR
* @userdata1 HUID of proc that had the SBE timeout
* @userdata2 SBE failing code
*
* @devdesc SBE did not start, this funciton is looking at
* the error to determine next course of action
*
* @custdesc The SBE did not start, we will attempt a reboot if possible
*/
l_errl = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_INFORMATIONAL,
ISTEP::MOD_SBE_EXTRACT_RC_HANDLER,
ISTEP::RC_SBE_EXTRACT_RC_ERROR,
TARGETING::get_huid(i_target),
i_current_error);
l_errl->collectTrace("ISTEPS_TRACE",256);
// Commit error and continue
errlCommit(l_errl, ISTEP_COMP_ID);
switch(i_current_error)
{
case P9_EXTRACT_SBE_RC::RESTART_SBE:
case P9_EXTRACT_SBE_RC::RESTART_CBS:
{
break;
}
case P9_EXTRACT_SBE_RC::REIPL_BKP_SEEPROM:
{
break;
}
case P9_EXTRACT_SBE_RC::REIPL_UPD_SEEPROM:
{
break;
}
case P9_EXTRACT_SBE_RC::NO_RECOVERY_ACTION:
{
break;
}
default:
{
break;
}
}
TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace, EXIT_MRK
"proc_extract_sbe_handler");
return;
}
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