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nvdimm.C
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nvdimm.C
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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/isteps/nvdimm/nvdimm.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2014,2019 */
/* [+] 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 */
#include "nvdimm.H"
#include <trace/interface.H>
#include <errl/errlentry.H>
#include <errl/errlmanager.H>
#include <errl/errludtarget.H>
#include <targeting/common/commontargeting.H>
#include <targeting/common/util.H>
#include <targeting/common/utilFilter.H>
#include <sys/time.h>
#include <usr/devicefw/userif.H>
#include <fapi2.H>
#include <fapi2/plat_hwp_invoker.H>
#include <lib/shared/nimbus_defaults.H>
#include <lib/ccs/ccs_nimbus.H>
#include <lib/dimm/ddr4/nvdimm_utils.H>
#include <lib/mc/port.H>
#include <isteps/nvdimm/nvdimmreasoncodes.H>
#include <isteps/nvdimm/nvdimm.H>
#include <vpd/spdenums.H>
#include <secureboot/trustedbootif.H>
#include <targeting/common/targetUtil.H>
#ifdef __HOSTBOOT_RUNTIME
#include <runtime/hbrt_utilities.H>
#include <usr/runtime/rt_targeting.H>
#else
#include <initservice/istepdispatcherif.H>
#endif
using namespace TARGETING;
using namespace DeviceFW;
using namespace EEPROM;
trace_desc_t* g_trac_nvdimm = NULL;
TRAC_INIT(&g_trac_nvdimm, NVDIMM_COMP_NAME, 2*KILOBYTE);
// Easy macro replace for unit testing
//#define TRACUCOMP(args...) TRACFCOMP(args)
#define TRACUCOMP(args...)
namespace NVDIMM
{
#define NUM_OFFSET 2
#define NVDIMM_SET_USER_DATA_1(left_32_ops_id, right_32_huid) \
TWO_UINT32_TO_UINT64(left_32_ops_id, right_32_huid)
#define NVDIMM_SET_USER_DATA_2_TIMEOUT(left_32_polled, right_32_timeout) \
NVDIMM_SET_USER_DATA_1(left_32_polled, right_32_timeout)
typedef struct ops_timeoutInfo{
const char * desc;
uint16_t offset[2];
uint8_t idx;
uint16_t status_reg_offset;
uint8_t status_progress;
} ops_timeoutInfo_t;
// Table containing register info on the timeout registers for different ops
constexpr ops_timeoutInfo_t timeoutInfoTable[] =
{
{"SAVE", {CSAVE_TIMEOUT1, CSAVE_TIMEOUT0}, SAVE , NVDIMM_CMD_STATUS0, SAVE_IN_PROGRESS},
{"RESTORE", {RESTORE_TIMEOUT1, RESTORE_TIMEOUT0}, RESTORE , NVDIMM_CMD_STATUS0, RSTR_IN_PROGRESS},
{"ERASE", {ERASE_TIMEOUT1, ERASE_TIMEOUT0}, ERASE , NVDIMM_CMD_STATUS0, ERASE_IN_PROGRESS},
{"ARM", {ARM_TIMEOUT1, ARM_TIMEOUT0}, ARM , NVDIMM_CMD_STATUS0, ARM_IN_PROGRESS},
{"PAGE_SWITCH", {PAGE_SWITCH_LATENCY1, PAGE_SWITCH_LATENCY0}, PAGE_SWITCH, 0xff, 0xff},
{"CHARGE", {ES_CHARGE_TIMEOUT1, ES_CHARGE_TIMEOUT0}, CHARGE , MODULE_HEALTH_STATUS1, CHARGE_IN_PROGRESS},
};
// Definition of ENCRYPTION_CONFIG_STATUS -- page 5 offset 0x20
typedef union {
uint8_t whole;
struct
{
uint8_t reserved : 1; // [7]
uint8_t unsupported_field : 1; // [6]
uint8_t erase_pending : 1; // [5]
uint8_t encryption_unlocked : 1; // [4]
uint8_t encryption_enabled : 1; // [3]
uint8_t erase_key_present : 1; // [2]
uint8_t random_string_present : 1; // [1]
uint8_t encryption_supported : 1; // [0]
} PACKED;
} encryption_config_status_t;
// Valid bits to check against (skips reserved and unsupported)
static constexpr uint8_t ENCRYPTION_STATUS_CHECK_MASK = 0x3F;
static constexpr uint8_t ENCRYPTION_STATUS_DISABLED = 0x01;
static constexpr uint8_t ENCRYPTION_STATUS_ENABLED = 0x1F;
// NV_STATUS masks
static constexpr uint8_t NV_STATUS_OR_MASK = 0xFB;
static constexpr uint8_t NV_STATUS_AND_MASK = 0x04;
static constexpr uint8_t NV_STATUS_UNPROTECTED_SET = 0x01;
static constexpr uint8_t NV_STATUS_UNPROTECTED_CLEAR = 0xFE;
static constexpr uint8_t NV_STATUS_POSSIBLY_UNPROTECTED_SET = 0x40;
static constexpr uint8_t NV_STATUS_POSSIBLY_UNPROTECTED_CLEAR = 0xBF;
// NVDIMM key consts
static constexpr size_t NUM_KEYS_IN_ATTR = 3;
static constexpr size_t MAX_TPM_SIZE = 34;
static constexpr uint8_t KEY_TERMINATE_BYTE = 0x00;
static constexpr uint8_t KEY_ABORT_BYTE = 0xFF;
// Definition of ENCRYPTION_KEY_VALIDATION -- page 5 offset 0x2A
typedef union {
uint8_t whole;
struct
{
uint8_t reserved : 5; // [7:3]
uint8_t keys_validated : 1; // [2]
uint8_t access_key_valid : 1; // [1]
uint8_t erase_key_valid : 1; // [0]
} PACKED;
} encryption_key_validation_t;
/**
* @brief Utility function to send the value of
* ATTR_NVDIMM_ARMED to the FSP
*/
void send_ATTR_NVDIMM_ARMED( Target* i_nvdimm,
ATTR_NVDIMM_ARMED_type& i_val );
/**
* @brief Utility function to set ATTR_NVDIMM_ENCRYPTION_KEYS_FW
* and send the value to the FSP
*/
void set_ATTR_NVDIMM_ENCRYPTION_KEYS_FW(
ATTR_NVDIMM_ENCRYPTION_KEYS_FW_typeStdArr& i_val )
{
Target* l_sys = nullptr;
targetService().getTopLevelTarget( l_sys );
assert(l_sys, "set_ATTR_NVDIMM_ENCRYPTION_KEYS_FW: no TopLevelTarget");
l_sys->setAttrFromStdArr
<ATTR_NVDIMM_ENCRYPTION_KEYS_FW>(i_val);
#ifdef __HOSTBOOT_RUNTIME
errlHndl_t l_err = nullptr;
// Send attr to HWSV if at runtime
AttributeTank::Attribute l_attr = {};
if( !makeAttributeStdArr<ATTR_NVDIMM_ENCRYPTION_KEYS_FW>
(l_sys, l_attr) )
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"set_ATTR_NVDIMM_ENCRYPTION_KEYS_FW() Could not create Attribute");
/*@
*@errortype
*@reasoncode NVDIMM_CANNOT_MAKE_ATTRIBUTE
*@severity ERRORLOG_SEV_PREDICTIVE
*@moduleid SET_ATTR_NVDIMM_ENCRYPTION_KEYS_FW
*@devdesc Couldn't create an Attribute to send the data
* to the FSP
*@custdesc NVDIMM encryption error
*/
l_err = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_PREDICTIVE,
SET_ATTR_NVDIMM_ENCRYPTION_KEYS_FW,
NVDIMM_CANNOT_MAKE_ATTRIBUTE,
ERRORLOG::ErrlEntry::ADD_SW_CALLOUT );
l_err->collectTrace(NVDIMM_COMP_NAME);
errlCommit( l_err, NVDIMM_COMP_ID );
}
else
{
std::vector<TARGETING::AttributeTank::Attribute> l_attrList;
l_attrList.push_back(l_attr);
l_err = sendAttributes( l_attrList );
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"set_ATTR_NVDIMM_ENCRYPTION_KEYS_FW() Error sending ATTR_NVDIMM_ENCRYPTION_KEYS_FW down to FSP");
l_err->setSev(ERRORLOG::ERRL_SEV_PREDICTIVE);
l_err->collectTrace(NVDIMM_COMP_NAME);
errlCommit( l_err, NVDIMM_COMP_ID );
}
}
#endif //__HOSTBOOT_RUNTIME
}
/**
* @brief Wrapper to call deviceOp to read the NV controller via I2C
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @param[in] i_addr - address/offset for the register to be read
*
* @param[out] o_data - returned data from read
*
* @param[in] page_verify - read and verify the page associated to the given address.
* Change if needed. Default to true
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmReadReg(Target* i_nvdimm,
uint16_t i_addr,
uint8_t & o_data,
const bool page_verify)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"NVDIMM Read HUID 0x%X, addr 0x%X",
get_huid(i_nvdimm), i_addr);
errlHndl_t l_err = nullptr;
size_t l_numBytes = 1;
uint8_t l_reg_addr = ADDRESS(i_addr);
uint8_t l_reg_page = PAGE(i_addr);
do
{
// If page_verify is true, make sure the current page is set to the page
// where i_addr is in and change if needed
if (page_verify)
{
uint8_t l_data = 0;
l_err = nvdimmReadReg(i_nvdimm, OPEN_PAGE, l_data, NO_PAGE_VERIFY);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmReadReg() nvdimm[%X] - failed to read the current page",
get_huid(i_nvdimm));
break;
}
if (l_data != l_reg_page)
{
l_err = nvdimmOpenPage(i_nvdimm, l_reg_page);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmReadReg() nvdimm[%X] - failed to verify page",
get_huid(i_nvdimm));
break;
}
}
}
l_err = DeviceFW::deviceOp( DeviceFW::READ,
i_nvdimm,
&o_data,
l_numBytes,
DEVICE_NVDIMM_ADDRESS(l_reg_addr));
}while(0);
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"NVDIMM Read HUID 0x%X, page 0x%X, addr 0x%X = 0x%X",
get_huid(i_nvdimm), l_reg_page, l_reg_addr, o_data);
return l_err;
}
/**
* @brief Wrapper to call deviceOp to write the NV controller via I2C
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @param[in] i_addr - address/offset for the register to be written
*
* @param[in] i_data - data to be written to register @ i_addr
*
* @param[in] page_verify - read and verify the page associated to the given address.
* Change if needed. Default to true
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmWriteReg(Target* i_nvdimm,
uint16_t i_addr,
uint8_t i_data,
const bool page_verify)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"NVDIMM Write HUID 0x%X, addr 0x%X = 0x%X",
get_huid(i_nvdimm), i_addr, i_data);
errlHndl_t l_err = nullptr;
size_t l_numBytes = 1;
uint8_t l_reg_addr = ADDRESS(i_addr);
uint8_t l_reg_page = PAGE(i_addr);
do
{
// If page_verify is true, make sure the current page is set to the page
// where i_addr is in and change if needed
if (page_verify)
{
uint8_t l_data = 0;
l_err = nvdimmReadReg(i_nvdimm, OPEN_PAGE, l_data, NO_PAGE_VERIFY);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmWriteReg() nvdimm[%X] - failed to read the current page",
get_huid(i_nvdimm));
break;
}
if (l_data != l_reg_page)
{
l_err = nvdimmOpenPage(i_nvdimm, l_reg_page);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmWriteReg() nvdimm[%X] - failed to verify page",
get_huid(i_nvdimm));
break;
}
}
}
l_err = DeviceFW::deviceOp( DeviceFW::WRITE,
i_nvdimm,
&i_data,
l_numBytes,
DEVICE_NVDIMM_ADDRESS(l_reg_addr));
}while(0);
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"NVDIMM Write HUID 0x%X, page = 0x%X, addr 0x%X = 0x%X",
get_huid(i_nvdimm), l_reg_page, l_reg_addr, i_data);
return l_err;
}
/**
* @brief Set the status flag
*
* @param[in] i_nvdimm - nvdimm target
*
* @param[in] i_status_flag - status flag to set for each nvdimm
*
*/
void nvdimmSetStatusFlag(Target *i_nvdimm, const uint8_t i_status_flag)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmSetStatusFlag() HUID[%X], i_status_flag[%X]"
,get_huid(i_nvdimm), i_status_flag);
auto l_statusFlag = i_nvdimm->getAttr<ATTR_NV_STATUS_FLAG>();
switch(i_status_flag)
{
// Make sure NSTD_VAL_PRSV (content preserved) is unset before setting NSTD_VAL_NOPRSV
// (data not preserved) or NSTD_ERR_NOPRSV (error preserving data)
case NSTD_ERR:
case NSTD_VAL_NOPRSV:
case NSTD_ERR_NOPRSV:
l_statusFlag &= NSTD_VAL_PRSV_MASK;
l_statusFlag |= i_status_flag;
break;
// If the content preserved(restore sucessfully), make sure
// NSTD_VAL_NOPRSV (not preserved) and NSTD_ERR_NOPRSV (error preserving)
// are unset before setting this flag.
case NSTD_VAL_PRSV:
l_statusFlag &= (NSTD_VAL_NOPRSV_MASK & NSTD_ERR_NOPRSV_MASK);
l_statusFlag |= i_status_flag;
break;
case NSTD_ERR_NOBKUP:
l_statusFlag |= i_status_flag;
break;
default:
assert(0, "nvdimmSetStatusFlag() HUID[%X], i_status_flag[%X] invalid flag!",
get_huid(i_nvdimm), i_status_flag);
break;
}
i_nvdimm->setAttr<ATTR_NV_STATUS_FLAG>(l_statusFlag);
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"nvdimmSetStatusFlag() HUID[%X], i_status_flag[%X]"
,get_huid(i_nvdimm), i_status_flag);
}
/**
* @brief Check NV controller ready state
*
* @param[in] i_nvdimm - nvdimm target
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmReady(Target *i_nvdimm)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmReady() HUID[%X]",get_huid(i_nvdimm));
errlHndl_t l_err = nullptr;
uint8_t l_data = 0x0;
uint8_t l_nvm_init_time = 0;
size_t l_numBytes = 1;
do
{
// Read the maximum NVM init time in seconds from the SPD
l_err = deviceRead(i_nvdimm,
&l_nvm_init_time,
l_numBytes,
DEVICE_SPD_ADDRESS(SPD::NVM_INIT_TIME));
TRACUCOMP(g_trac_nvdimm, "nvdimmReady() HUID[%X] l_nvm_init_time = %u",
get_huid(i_nvdimm), l_nvm_init_time);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmReady() nvdimm[%X] - failed to retrieve NVM_INIT_TIME from SPD",
get_huid(i_nvdimm));
break;
}
// Convert to ms for polling
uint32_t l_nvm_init_time_ms = l_nvm_init_time * MS_PER_SEC;
uint32_t l_poll = 0;
do
{
l_err = nvdimmReadReg(i_nvdimm, NVDIMM_READY, l_data);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmReady() nvdimm[%X] - error getting ready status[%d]",
get_huid(i_nvdimm), l_data);
break;
}
if (l_data == NV_READY)
{
break;
}
nanosleep(0, NV_READY_POLL_TIME_MS*NS_PER_MSEC);
l_poll += NV_READY_POLL_TIME_MS;
}while(l_poll < l_nvm_init_time_ms);
if ((l_data != NV_READY) && !l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmReady() nvdimm[%X] - nvdimm not ready[%d]",
get_huid(i_nvdimm), l_data);
/*@
*@errortype
*@reasoncode NVDIMM_NOT_READY
*@severity ERRORLOG_SEV_UNRECOVERABLE
*@moduleid NVDIMM_CHECK_READY
*@userdata1[0:31] Ret value from ready register
*@userdata1[32:63] Target Huid
*@userdata2 <UNUSED>
*@devdesc Failed to read ready status or NVDIMM not ready
* for host access. (userdata1 != 0xA5)
*@custdesc NVDIMM not ready
*/
l_err = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_UNRECOVERABLE,
NVDIMM_CHECK_READY,
NVDIMM_NOT_READY,
NVDIMM_SET_USER_DATA_1(l_data, get_huid(i_nvdimm)),
0x0,
ERRORLOG::ErrlEntry::NO_SW_CALLOUT );
l_err->collectTrace(NVDIMM_COMP_NAME);
// If nvdimm is not ready for access by now, this is
// a failing indication on the NV controller
l_err->addPartCallout( i_nvdimm,
HWAS::NV_CONTROLLER_PART_TYPE,
HWAS::SRCI_PRIORITY_HIGH);
}
}while(0);
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"nvdimmReady() HUID[%X] ready[%X]",
get_huid(i_nvdimm), l_data);
return l_err;
}
/**
* @brief Reset the NV controller. This operation does not interfere
* with the DRAM operation but will introduce loss of protection
* if NVDIMM was armed
*
* @param[in] i_nvdimm - nvdimm target
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmResetController(Target *i_nvdimm)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmResetController() HUID[%X]",get_huid(i_nvdimm));
errlHndl_t l_err = nullptr;
do
{
l_err = nvdimmWriteReg(i_nvdimm, NVDIMM_MGT_CMD0, RESET_CONTROLLER);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmResetController() nvdimm[%X] - error reseting the controller",
get_huid(i_nvdimm));
break;
}
l_err = nvdimmReady(i_nvdimm);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmResetController() nvdimm[%X] - not ready after reset.",
get_huid(i_nvdimm));
}
}while(0);
// Reset will lock encryption so unlock again
TargetHandleList l_nvdimmTargetList;
l_nvdimmTargetList.push_back(i_nvdimm);
nvdimm_encrypt_unlock(l_nvdimmTargetList);
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"nvdimmResetController() HUID[%X]",get_huid(i_nvdimm));
return l_err;
}
/**
* @brief This function polls the status register for the given ops_id
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @param[in] i_ops_id - id assigned to each operation in nvdimm.H
*
* @param[out] o_poll - total polled time in ms
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmPollStatus ( Target *i_nvdimm,
ops_id i_ops_id,
uint32_t &o_poll)
{
errlHndl_t l_err = nullptr;
uint8_t l_data = 0x0;
uint32_t l_target_timeout_values[6];
bool l_done = false;
// Get the timeout value for ops_id
assert(i_nvdimm->tryGetAttr<ATTR_NV_OPS_TIMEOUT_MSEC>(l_target_timeout_values),
"nvdimmPollStatus() HUID[%X], failed reading ATTR_NV_OPS_TIMEOUT_MSEC!", get_huid(i_nvdimm));
uint32_t l_timeout = l_target_timeout_values[i_ops_id];
do
{
nanosleep( 0, OPS_POLL_TIME_MS*NS_PER_MSEC ); //sleep for POLL ms
l_err = nvdimmReadReg( i_nvdimm,
timeoutInfoTable[i_ops_id].status_reg_offset,
l_data );
if(l_err)
{
break;
}
if((l_data & timeoutInfoTable[i_ops_id].status_progress) !=
timeoutInfoTable[i_ops_id].status_progress) // Done
{
l_done = true;
break;
}
o_poll += OPS_POLL_TIME_MS;
} while (o_poll <= l_timeout);
if (!l_done && !l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmPollStatus() nvdimm[%X] - Status timed out ops_id[%d]",
get_huid(i_nvdimm), i_ops_id);
/*@
*@errortype
*@reasoncode NVDIMM_STATUS_TIMEOUT
*@severity ERRORLOG_SEV_PREDICTIVE
*@moduleid NVDIMM_POLL_STATUS
*@userdata1[0:31] Related ops (0xff = NA)
*@userdata1[32:63] Target Huid
*@userdata2[0:31] Polled value
*@userdata2[32:63] Timeout value
*@devdesc Encountered timeout while performing operation on NVDIMM
* Refer to userdata1 for which operation it timed out.
*@custdesc NVDIMM timed out
*/
l_err = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_PREDICTIVE,
NVDIMM_POLL_STATUS,
NVDIMM_STATUS_TIMEOUT,
NVDIMM_SET_USER_DATA_1(i_ops_id, get_huid(i_nvdimm)),
NVDIMM_SET_USER_DATA_2_TIMEOUT(o_poll, l_timeout),
ERRORLOG::ErrlEntry::NO_SW_CALLOUT );
l_err->collectTrace(NVDIMM_COMP_NAME);
// May have to move the error handling to the caller
// as different op could have different error severity
l_err->addPartCallout( i_nvdimm,
HWAS::NV_CONTROLLER_PART_TYPE,
HWAS::SRCI_PRIORITY_HIGH);
}
return l_err;
}
/**
* @brief This function polls the command status register for backup/CSAVE
* completion (does not indicate success or fail)
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @param[out] o_poll - total polled time in ms
*
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmPollBackupDone(Target* i_nvdimm,
uint32_t &o_poll)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmPollBackupDone() nvdimm[%X]",
get_huid(i_nvdimm));
errlHndl_t l_err = nullptr;
l_err = nvdimmPollStatus ( i_nvdimm, SAVE, o_poll);
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"nvdimmPollBackupDone() nvdimm[%X]",
get_huid(i_nvdimm));
return l_err;
}
/**
* @brief This function polls the command status register for restore
* completion (does not indicate success or fail)
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @param[out] o_poll - total polled time in ms
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmPollRestoreDone(Target* i_nvdimm,
uint32_t &o_poll)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmPollRestoreDone() nvdimm[%X]",
get_huid(i_nvdimm));
errlHndl_t l_err = nullptr;
l_err = nvdimmPollStatus ( i_nvdimm, RESTORE, o_poll );
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"nvdimmPollRestoreDone() nvdimm[%X]",
get_huid(i_nvdimm));
return l_err;
}
/**
* @brief This function polls the command status register for erase
* completion (does not indicate success or fail)
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @param[out] o_poll - total polled time in ms
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmPollEraseDone(Target* i_nvdimm,
uint32_t &o_poll)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmPollEraseDone() nvdimm[%X]",
get_huid(i_nvdimm));
errlHndl_t l_err = nullptr;
l_err = nvdimmPollStatus ( i_nvdimm, ERASE, o_poll);
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"nvdimmPollEraseDone() nvdimm[%X]",
get_huid(i_nvdimm));
return l_err;
}
/**
* @brief This function polls the command status register for backup power
* charge completion (does not indicate success or fail)
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @param[out] o_poll - total polled time in ms
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmPollESChargeStatus(Target* i_nvdimm,
uint32_t &o_poll)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmPollESChargeDone() nvdimm[%X]",
get_huid(i_nvdimm));
errlHndl_t l_err = nullptr;
l_err = nvdimmPollStatus ( i_nvdimm, CHARGE, o_poll );
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"nvdimmPollESChargeDone() nvdimm[%X]",
get_huid(i_nvdimm));
return l_err;
}
/**
* @brief This function retrieve the restore status
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @param[out] o_rstrValid - returned data from the restore status register
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmGetRestoreValid(Target* i_nvdimm, uint8_t & o_rstrValid)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmGetRestoreValid() nvdimm[%X]",
get_huid(i_nvdimm));
errlHndl_t l_err = nullptr;
l_err = nvdimmReadReg(i_nvdimm, RESTORE_STATUS, o_rstrValid);
if (l_err){
TRACFCOMP(g_trac_nvdimm, ERR_MRK"NDVIMM HUID[%X], Error getting restore status!",
get_huid(i_nvdimm));
}
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"nvdimmGetRestoreValid() nvdimm[%X], restore_status[%x],",
get_huid(i_nvdimm), o_rstrValid);
return l_err;
}
/**
* @brief This function sets the energy supply policy to device-managed
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmSetESPolicy(Target* i_nvdimm)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmSetESPolicy() nvdimm[%X]",
get_huid(i_nvdimm));
errlHndl_t l_err = nullptr;
uint8_t l_data;
do
{
l_err = nvdimmWriteReg(i_nvdimm, SET_ES_POLICY_CMD, ES_DEV_MANAGE);
if (l_err)
{
nvdimmSetStatusFlag(i_nvdimm, NSTD_ERR_NOBKUP);
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmSetESPolicy() nvdimm[%X]"
"failed to write ES register!",get_huid(i_nvdimm));
break;
}
// Give it a bit of time (100ms) for the status reg to reflect the change
nanosleep( 0, 100*NS_PER_MSEC );
// Make sure the set was a success
l_err = nvdimmReadReg(i_nvdimm, SET_ES_POLICY_STATUS, l_data);
if (l_err)
{
nvdimmSetStatusFlag(i_nvdimm, NSTD_ERR_NOBKUP);
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmSetESPolicy() nvdimm[%X]"
"failed to read ES register!",get_huid(i_nvdimm));
break;
}
if ((l_data & ES_SUCCESS) != ES_SUCCESS)
{
TRACFCOMP(g_trac_nvdimm, EXIT_MRK"NDVIMM HUID[%X], nvdimmSetESPolicy() "
"failed!",get_huid(i_nvdimm));
/*@
*@errortype
*@reasoncode NVDIMM_SET_ES_ERROR
*@severity ERRORLOG_SEV_PREDICTIVE
*@moduleid NVDIMM_SET_ES
*@userdata1[0:31] Related ops (0xff = NA)
*@userdata1[32:63] Target Huid
*@userdata2 <UNUSED>
*@devdesc Encountered error setting the energy source policy
* Make sure the connection between energy source and
* NVDIMM is intact
*@custdesc NVDIMM encountered error setting the energy source policy
*/
l_err = new ERRORLOG::ErrlEntry(
ERRORLOG::ERRL_SEV_PREDICTIVE,
NVDIMM_SET_ES,
NVDIMM_SET_ES_ERROR,
NVDIMM_SET_USER_DATA_1(CHARGE, get_huid(i_nvdimm)),
0x0,
ERRORLOG::ErrlEntry::NO_SW_CALLOUT );
l_err->collectTrace(NVDIMM_COMP_NAME);
// Failure setting the energy source policy could mean error on the
// battery or even the cabling
l_err->addPartCallout( i_nvdimm,
HWAS::BPM_PART_TYPE,
HWAS::SRCI_PRIORITY_HIGH);
l_err->addPartCallout( i_nvdimm,
HWAS::BPM_CABLE_PART_TYPE,
HWAS::SRCI_PRIORITY_HIGH);
}
}while(0);
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"NDVIMM HUID[%X], nvdimmSetESPolicy(),"
,get_huid(i_nvdimm));
return l_err;
}
/**
* @brief This function arms/disarms the trigger based on i_state
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @param[in] i_state - true to arm, false to disarm
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmChangeArmState(Target *i_nvdimm, bool i_state)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmChangeArmState() nvdimm[%X]",
get_huid(i_nvdimm));
errlHndl_t l_err = nullptr;
// If i_state is true, arm the nvdimm in conjunction with ATOMIC_SAVE_AND_ERASE
// feature. A separate erase command is not requred as the image will get erased
// before backup on the next catastrophic event
uint8_t l_data = i_state ? ARM_RESETN_AND_ATOMIC_SAVE_AND_ERASE : DISARM_RESETN;
l_err = nvdimmWriteReg(i_nvdimm, ARM_CMD, l_data);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmChangeArmState() nvdimm[%X] error %s nvdimm!!",
get_huid(i_nvdimm), i_state? "arming" : "disarming");
}
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"nvdimmChangeArmState() nvdimm[%X]",
get_huid(i_nvdimm));
return l_err;
}
/**
* @brief This function checks for valid image on the given target
*
* @param[in] i_nvdimm - nvdimm target with NV controller
*
* @param[out] o_imgValid - return true if the target has a valid image
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmValidImage(Target *i_nvdimm, bool &o_imgValid)
{
TRACUCOMP(g_trac_nvdimm, ENTER_MRK"nvdimmValidImage(): nvdimm[%X]",
get_huid(i_nvdimm));
errlHndl_t l_err = nullptr;
uint8_t l_data = 0x0;
o_imgValid = false;
l_err = nvdimmReadReg(i_nvdimm, CSAVE_INFO, l_data);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmValidImage() nvdimm[%X]"
"failed to for image!",get_huid(i_nvdimm) );
}
else if(l_data & VALID_IMAGE)
{
o_imgValid = true;
}
TRACUCOMP(g_trac_nvdimm, EXIT_MRK"nvdimmValidImage(): nvdimm[%X] ret[%X]",
get_huid(i_nvdimm), l_data);
return l_err;
}
#ifndef __HOSTBOOT_RUNTIME
/**
* @brief This function handles all the restore related operations.
* SRE -> restore -> SRX/RCD/MRS
*
* @param[in] i_nvdimmList - list of nvdimms
*
* @param[in] i_mpipl - MPIPL mode
*
* @return errlHndl_t - Null if successful, otherwise a pointer to
* the error log.
*/
errlHndl_t nvdimmRestore(TargetHandleList i_nvdimmList, uint8_t &i_mpipl)
{
errlHndl_t l_err = nullptr;
bool l_imgValid;
uint8_t l_rstrValid;
uint32_t l_poll = 0;
do
{
// Put NVDIMM into self-refresh
for (TargetHandleList::iterator it = i_nvdimmList.begin();
it != i_nvdimmList.end();)
{
// Default state during boot is unarmed, therefore not preserved
nvdimmSetStatusFlag(*it, NSTD_ERR_NOBKUP);
l_err = nvdimmValidImage(*it, l_imgValid);
// No reason to run if we can't figure out
// if there is an image or not
if (l_err)
{
break;
}
if (!l_imgValid)
{
nvdimmSetStatusFlag(*it, NSTD_VAL_NOPRSV);
i_nvdimmList.erase(it);
continue;
}
TargetHandleList l_mcaList;
getParentAffinityTargets(l_mcaList, *it, CLASS_UNIT, TYPE_MCA);
assert(l_mcaList.size(), "nvdimmRestore() failed to find parent MCA.");
fapi2::Target<fapi2::TARGET_TYPE_MCA> l_fapi_mca(l_mcaList[0]);
// Before we do anything, check if we are in mpipl. If we are, make sure ddr_resetn
// is de-asserted before kicking off the restore
if (i_mpipl)
{
TRACFCOMP(g_trac_nvdimm, "nvdimmRestore(): in MPIPL");
FAPI_INVOKE_HWP(l_err, mss::ddr_resetn, l_fapi_mca, HIGH);
if (l_err)
{
TRACFCOMP(g_trac_nvdimm, ERR_MRK"nvdimmRestore() HUID[%X] i_mpipl[%u] failed to de-assert resetn!",
get_huid(*it), i_mpipl);
nvdimmSetStatusFlag(*it, NSTD_ERR_NOPRSV);
//@TODO RTC 199645 - add HW callout on dimm target
// If we failed to de-assert reset_n, the dimm is pretty much useless.
// Let's not restore if that happens
// The callout will be added inside the HWP
// Leaving this comment here as a reminder, will remove later
break;
}
// In MPIPL, invalidate the BAR to prevent any traffic from stepping on