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p9_io_xbus_read_erepair.C
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p9_io_xbus_read_erepair.C
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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/io/p9_io_xbus_read_erepair.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2017 */
/* [+] 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 p9_io_xbus_read_erepair.C
/// @brief Read eRepair.
///----------------------------------------------------------------------------
/// *HWP HWP Owner : Chris Steffen <cwsteffen@us.ibm.com>
/// *HWP HWP Backup Owner : Gary Peterson <garyp@us.ibm.com>
/// *HWP FW Owner : Jamie Knight <rjknight@us.ibm.com>
/// *HWP Team : IO
/// *HWP Level : 2
/// *HWP Consumed by : FSP:HB
///----------------------------------------------------------------------------
///
/// @verbatim
/// High-level procedure flow:
///
/// A HWP that runs Read eRepair. This procedure reads the current bad
/// lanes and passes by reference the lane numbers in a vector.
///
/// Procedure Prereq:
/// - System clocks are running.
///
/// @endverbatim
///----------------------------------------------------------------------------
// ----------------------------------------------------------------------------
// Includes
// ----------------------------------------------------------------------------
#include "p9_io_xbus_read_erepair.H"
#include "p9_io_scom.H"
#include "p9_io_regs.H"
// ----------------------------------------------------------------------------
// Procedure Function
// ----------------------------------------------------------------------------
/**
* @brief A HWP that runs Read eRepair. This procedure reads the current bad
* lanes and passes by reference the lane numbers in a vector. The rx vectors
* will return to the caller ( PRD or e-repair ) the bad lane numbers on this
* endpoint. The caller will duplicate the found rx bad lanes to the
* corresponding tx bad lanes on the connected target.
* @param[in] i_target Reference to Target
* @param[in] i_clock_group Clock Group of Target
* @param[out] o_bad_lanes Vector of bad lanes
* @retval ReturnCode
*/
fapi2::ReturnCode p9_io_xbus_read_erepair(
const fapi2::Target < fapi2::TARGET_TYPE_XBUS >& i_target,
const uint8_t& i_clock_group,
std::vector< uint8_t >& o_bad_lanes )
{
FAPI_IMP("p9_io_xbus_read_erepair: Entering.");
const uint8_t LANE_00 = 0;
const uint16_t BAD_LANES_3PLUS = 3;
const uint16_t BAD_LANES_2 = 2;
const uint16_t BAD_LANES_1 = 1;
const uint16_t BAD_LANES_0 = 0;
uint64_t l_data = 0;
o_bad_lanes.clear();
FAPI_TRY(io::read( EDIP_RX_GLBSM_STAT9_E_PG, i_target, i_clock_group, LANE_00, l_data),
"Reading Bad Lane Code Failed.");
FAPI_DBG( "Bad Lane Code: %d", io::get( EDIP_RX_BAD_LANE_CODE, l_data ) );
switch( io::get( EDIP_RX_BAD_LANE_CODE, l_data ) )
{
case BAD_LANES_3PLUS:
FAPI_DBG( "Bad Lane: Three or more bad lanes found." );
// We will intentionally fall through to collect bad lane 1 & 2.
case BAD_LANES_2:
FAPI_DBG( "Bad Lane 2: %d", io::get( EDIP_RX_BAD_LANE2, l_data ) );
o_bad_lanes.push_back( (uint8_t)io::get( EDIP_RX_BAD_LANE2, l_data ) );
// We will intentionally fall through to collect bad lane 1.
case BAD_LANES_1:
FAPI_DBG( "Bad Lane 1: %d", io::get( EDIP_RX_BAD_LANE1, l_data ) );
o_bad_lanes.push_back( (uint8_t)io::get( EDIP_RX_BAD_LANE1, l_data ) );
break;
case BAD_LANES_0:
FAPI_DBG( "No Bad Lanes" );
default:
break;
}
fapi_try_exit:
FAPI_IMP("p9_io_xbus_read_erepair: Exiting.");
return fapi2::current_err;
}