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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/hwpf/hwp/mvpd_accessors/getMBvpdAddrMirrorData.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2013,2014 */
/* [+] 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 */
// $Id: getMBvpdAddrMirrorData.C,v 1.5 2014/10/23 22:01:31 dcrowell Exp $
/**
* @file getMBvpdAddrMirrorData.C
*
* @brief get Address Mirroring Data from MBvpd AM keyword
*
*/
#include <stdint.h>
// fapi support
#include <fapi.H>
#include <fapiUtil.H>
#include <getMBvpdAddrMirrorData.H>
extern "C"
{
using namespace fapi;
fapi::ReturnCode getMBvpdAddrMirrorData(
const fapi::Target &i_mbaTarget,
uint8_t (& o_val)[2][2])
{
//AM keyword layout
//The following constants are for readibility. They need to stay in sync
// with the vpd layout.
const uint8_t NUM_MBAS = 2; //There are 2 MBAs per Centaur memory buffer
const uint8_t NUM_PORTS = 2; //Each MBA has 2 ports
struct port_attributes
{
uint8_t iv_dimm ; // bits 0:3 DIMM 0 bits 4:7 DIMM 1
};
struct mba_attributes
{
port_attributes mba_port[NUM_PORTS];
};
struct am_keyword
{
mba_attributes mb_mba[NUM_MBAS];
uint8_t spare[8]; //VPD data CCIN_31E1_v.5.3.ods
};
const uint32_t AM_KEYWORD_SIZE = sizeof(am_keyword); // keyword size
fapi::ReturnCode l_fapirc;
fapi::Target l_mbTarget;
uint8_t l_mbaPos = NUM_MBAS; //initialize to out of range value (+1)
am_keyword * l_pMaBuffer = NULL; // MBvpd MT keyword buffer
uint32_t l_MaBufsize = sizeof(am_keyword);
FAPI_DBG("getMBvpdAddrMirrorData: entry ");
do {
// Determine which VPD format we are using
uint8_t l_customDimm = 0;
l_fapirc=FAPI_ATTR_GET(ATTR_EFF_CUSTOM_DIMM,&i_mbaTarget,l_customDimm);
if(l_fapirc)
{
FAPI_ERR("getMBvpdAddrMirrorData: Read of Custom Dimm failed");
break;
}
//if not a custom_dimm then assume ISDIMM
if(fapi::ENUM_ATTR_EFF_CUSTOM_DIMM_NO == l_customDimm)
{
// Planar CVPD (==ISDIMM) has no AM keyword, by default there is
// no mirrored data
for (uint8_t l_port=0; l_port<NUM_PORTS; l_port++)
{
o_val[l_port][0] = 0;
o_val[l_port][1] = 0;
}
break;
}
// find the position of the passed mba on the centuar
l_fapirc = FAPI_ATTR_GET(ATTR_CHIP_UNIT_POS,&i_mbaTarget,l_mbaPos);
if (l_fapirc)
{
FAPI_ERR(" getMBvpdAddrMirrorData: Get MBA position failed ");
break; // break out with fapirc
}
FAPI_DBG("getMBvpdAddrMirrorData: mba %s position=%d",
i_mbaTarget.toEcmdString(),
l_mbaPos);
// find the Centaur memmory buffer from the passed MBA
l_fapirc = fapiGetParentChip (i_mbaTarget,l_mbTarget);
if (l_fapirc)
{
FAPI_ERR("getMBvpdAddrMirrorData: Finding the parent mb failed ");
break; // break out with fapirc
}
FAPI_DBG("getMBvpdAddrMirrorData: parent mb path=%s ",
l_mbTarget.toEcmdString() );
// Read the AM keyword field
l_pMaBuffer = new am_keyword;
l_fapirc = fapiGetMBvpdField(fapi::MBVPD_RECORD_VSPD,
fapi::MBVPD_KEYWORD_AM,
l_mbTarget,
reinterpret_cast<uint8_t *>(l_pMaBuffer),
l_MaBufsize);
if (l_fapirc)
{
FAPI_ERR("getMBvpdAddrMirrorData: Read of AM keyword failed");
break; // break out with fapirc
}
// Check that sufficient AM was returned.
if (l_MaBufsize < AM_KEYWORD_SIZE )
{
FAPI_ERR("getMBvpdAddrMirrorData:"
" less AM keyword returned than expected %d < %d",
l_MaBufsize, AM_KEYWORD_SIZE);
const uint32_t & KEYWORD = fapi::MBVPD_KEYWORD_AM;
const uint32_t & RETURNED_SIZE = l_MaBufsize;
const fapi::Target & CHIP_TARGET = l_mbTarget;
FAPI_SET_HWP_ERROR(l_fapirc, RC_MBVPD_INSUFFICIENT_VPD_RETURNED );
break; // break out with fapirc
}
// Return the 4 bits of address mirroring data for each
// of the 4 DIMMs for the requested mba from the AM keyword buffer
for (uint8_t l_port=0; l_port<NUM_PORTS; l_port++)
{
uint8_t l_dimm = l_pMaBuffer->
mb_mba[l_mbaPos].mba_port[l_port].iv_dimm;
o_val[l_port][0]= ((l_dimm & 0xF0)>>4);
o_val[l_port][1]= l_dimm & 0x0F;
}
} while (0);
if( l_pMaBuffer )
{
delete l_pMaBuffer;
l_pMaBuffer = NULL;
}
FAPI_DBG("getMBvpdAddrMirrorData: exit rc=0x%08x",
static_cast<uint32_t>(l_fapirc));
return l_fapirc;
}
} // extern "C"
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