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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/hwpf/hwp/bus_training/io_read_erepair.C $ */
/* */
/* IBM CONFIDENTIAL */
/* */
/* COPYRIGHT International Business Machines Corp. 2013,2014 */
/* */
/* p1 */
/* */
/* Object Code Only (OCO) source materials */
/* Licensed Internal Code Source Materials */
/* IBM HostBoot Licensed Internal Code */
/* */
/* The source code for this program is not published or otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* Origin: 30 */
/* */
/* IBM_PROLOG_END_TAG */
// $Id: io_read_erepair.C,v 1.12 2014/04/17 15:58:23 steffen Exp $
// *!***************************************************************************
// *! (C) Copyright International Business Machines Corp. 1997, 1998
// *! All Rights Reserved -- Property of IBM
// *! *** IBM Confidential ***
// *!***************************************************************************
// *! FILENAME : io_read_erepair.C
// *! TITLE :
// *! DESCRIPTION : Read e-repair data
// *! CONTEXT :
// *!
// *! OWNER NAME : Varghese, Varkey Email: varkey.kv@in.ibm.com
// *! BACKUP NAME : Swaminathan, Janani Email: jaswamin@in.ibm.com
// *!
// *!***************************************************************************
// CHANGE HISTORY:
//------------------------------------------------------------------------------
// Version:|Author: | Date: | Comment:
// --------|--------|---------|--------------------------------------------------
// 1.0 |varkeykv|21-Jan-13|Initial check in
//------------------------------------------------------------------------------
#include <fapi.H>
#include "io_read_erepair.H"
#include "gcr_funcs.H"
extern "C" {
using namespace fapi;
//! Read repair values from VPD into the HW
/*
This function will perform erepair for one IO type target -- eithe MCS or XBUS or ABUS
* Tx and Rx lanes vector is filled in by the HWP with bad lane numbers
*/
ReturnCode io_read_erepair(const Target& target,std::vector<uint8_t> &rx_lanes)
{
ReturnCode rc;
ecmdDataBufferBase data_one(16);
ecmdDataBufferBase mask(16);
uint8_t lane=0;
io_interface_t interface=CP_IOMC0_P0; // Since G
uint32_t rc_ecmd=0;
uint8_t start_group=0;
uint8_t end_group=0;
const fapi::Target &TARGET=target;
rc_ecmd=mask.flushTo1();
if(rc_ecmd)
{
rc.setEcmdError(rc_ecmd);
return(rc);
}
// Check which type of bus this is and do setup needed
fapi::TargetType l_type = target.getType();
switch (l_type)
{
case fapi::TARGET_TYPE_ABUS_ENDPOINT:
start_group=0;
end_group=0;
interface=CP_FABRIC_A0; // base scom for A bus , assume translation to A1 by PLAT
break;
case fapi::TARGET_TYPE_XBUS_ENDPOINT:
start_group=0;
end_group=0;
interface=CP_FABRIC_X0; // base scom for X bus
break;
case fapi::TARGET_TYPE_MCS_CHIPLET:
start_group=3;
end_group=3;
interface=CP_IOMC0_P0; // base scom for MC bus
break;
case fapi::TARGET_TYPE_MEMBUF_CHIP:
start_group=0;
end_group=0;
interface=CEN_DMI; // base scom Centaur chip
break;
default:
FAPI_ERR("Invalid io_read_erepair HWP invocation");
FAPI_SET_HWP_ERROR(rc,IO_READ_EREPAIR_INVALID_INVOCATION_RC);
break;
}
if (rc)
{
return(rc);
}
FAPI_INF("Reading erepair data \n");
for(uint8_t clock_group=start_group;clock_group<=end_group;++clock_group)
{
// This is only for X bus ..where multi groups are translated to consecutive lane numbers
if(interface==CP_FABRIC_X0)
{
switch (clock_group)
{
case 0:
lane=0;
break;
case 1:
lane=20;
break;
case 2:
lane=40;
break;
case 3:
lane=60;
break;
default:
//don't need to do anything?
FAPI_ERR("io_read_erepair has a non-known clock groupd");
break;
}
}
//Collect the RX bad lanes
rc_ecmd|=data_one.flushTo0();
if(rc_ecmd)
{
FAPI_ERR("io_read_erepair hit an error while flushing data");
rc.setEcmdError(rc_ecmd);
return(rc);
}
rc = GCR_read( target, interface, rx_bad_lane_enc_gcrmsg_pg, clock_group, 0, data_one);
if(rc)
{
FAPI_ERR("io_read_erepair hit an error while writing rx_bad_lane_enc_gcrmsg_pg");
return(rc);
}
// RX lane records
// Set the RX bad lanes in the RX vector
uint8_t status=0;
// Get first bad lane
data_one.extract(&status,14,2);
status=status>>6;
FAPI_DBG("Bad lane status is %d",status);
if(status!=0){
if(status>=1){
data_one.extract(&lane,0,7);
lane=lane>>1;
FAPI_DBG("First bad lane is %d",lane);
rx_lanes.push_back(lane); // 0 to 15 bad lanes
}
// Get second bad lane if any
if(status>=2){
data_one.extract(&lane,7,7);
lane=lane>>1;
FAPI_DBG("Second bad lane is %d",lane);
rx_lanes.push_back(lane); // 16 to 31 bad lanes
}
}
else{
// No bad lanes to report
FAPI_DBG("No bad lane to report!!");
}
}
return rc;
}
} //end extern C
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