/* IBM_PROLOG_BEGIN_TAG */ /* This is an automatically generated prolog. */ /* */ /* $Source: src/usr/vpd/dvpd.C $ */ /* */ /* OpenPOWER HostBoot Project */ /* */ /* Contributors Listed Below - COPYRIGHT 2013,2017 */ /* [+] 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 */ // ---------------------------------------------- // Includes // ---------------------------------------------- #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "dvpd.H" #include "cvpd.H" #include "vpd.H" #include "pvpd.H" #include // ---------------------------------------------- // Trace definitions // ---------------------------------------------- extern trace_desc_t* g_trac_vpd; // ------------------------ // Macros for unit testing //#define TRACUCOMP(args...) TRACFCOMP(args) #define TRACUCOMP(args...) //#define TRACSSCOMP(args...) TRACFCOMP(args) #define TRACSSCOMP(args...) namespace DVPD { // local functions bool dvpdPresent ( TARGETING::Target * i_target ); // ---------------------------------------------- // Globals // ---------------------------------------------- mutex_t g_mutex = MUTEX_INITIALIZER; /** * @brief This function will perform the steps required to do a read from * the Hostboot DVPD data. * * @param[in] i_opType - Operation Type - See DeviceFW::OperationType in * driververif.H * * @param[in] i_target - Processor Target device * * @param [in/out] io_buffer - Pointer to the data that was read from * the target device. This parameter, when set to NULL, will return * the keyword size value in io_buflen. * * @param [in/out] io_buflen - Length of the buffer to be read or written * to/from the target. This value should indicate the size of the * io_buffer parameter that has been allocated. Being returned it * will indicate the number of valid bytes in the buffer being * returned. This parameter will contain the size of a keyword when * the io_buffer parameter is passed in NULL. * * @param [in] i_accessType - Access Type - See DeviceFW::AccessType in * usrif.H * * @param [in] i_args - This is an argument list for the device driver * framework. * * @return errlHndl_t - NULL if successful, otherwise a pointer to the * error log. */ errlHndl_t dvpdRead ( DeviceFW::OperationType i_opType, TARGETING::Target * i_target, void * io_buffer, size_t & io_buflen, int64_t i_accessType, va_list i_args ) { errlHndl_t err = NULL; IpVpdFacade::input_args_t args; args.record = ((dvpdRecord)va_arg( i_args, uint64_t )); args.keyword = ((dvpdKeyword)va_arg( i_args, uint64_t )); args.location = ((VPD::vpdCmdTarget)va_arg( i_args, uint64_t )); TRACSSCOMP( g_trac_vpd, ENTER_MRK"dvpdRead()" ); err = Singleton::instance().read(i_target, io_buffer, io_buflen, args); return err; } /** * @brief This function will perform the steps required to do a write to * the Hostboot DVPD data. * * @param[in] i_opType - Operation Type - See DeviceFW::OperationType in * driververif.H * * @param[in] i_target - Processor Target device * * @param [in/out] io_buffer - Pointer to the data that was read from * the target device. It will also be used to contain data to * be written to the device. * * @param [in/out] io_buflen - Length of the buffer to be read or written * to/from the target. This value should indicate the size of the * io_buffer parameter that has been allocated. Being returned it * will indicate the number of valid bytes in the buffer being * returned. * * @param [in] i_accessType - Access Type - See DeviceFW::AccessType in * usrif.H * * @param [in] i_args - This is an argument list for the device driver * framework. * * @return errlHndl_t - NULL if successful, otherwise a pointer to the * error log. */ errlHndl_t dvpdWrite ( DeviceFW::OperationType i_opType, TARGETING::Target * i_target, void * io_buffer, size_t & io_buflen, int64_t i_accessType, va_list i_args ) { errlHndl_t err = NULL; IpVpdFacade::input_args_t args; args.record = ((dvpdRecord)va_arg( i_args, uint64_t )); args.keyword = ((dvpdKeyword)va_arg( i_args, uint64_t )); args.location = ((VPD::vpdCmdTarget)va_arg( i_args, uint64_t )); TRACSSCOMP( g_trac_vpd, ENTER_MRK"dvpdWrite()" ); err = Singleton::instance().write(i_target, io_buffer, io_buflen, args); return err; } // Register with the routing code DEVICE_REGISTER_ROUTE( DeviceFW::READ, DeviceFW::DVPD, TARGETING::TYPE_MCS, dvpdRead ); DEVICE_REGISTER_ROUTE( DeviceFW::WRITE, DeviceFW::DVPD, TARGETING::TYPE_MCS, dvpdWrite ); }; // end namespace DVPD #if !defined(__HOSTBOOT_RUNTIME) // -------------------------------------------------------- // Presence Detection //--------------------------------------------------------- /** * @brief Performs a presence detect operation on MCSs * * Although not a physical part, presence detect confirms access * to direct access memory vpd. * * @param[in] i_opType Operation type, see DeviceFW::OperationType * in driverif.H * @param[in] i_target Presence detect target * @param[in/out] io_buffer Read: Pointer to output data storage * Write: Pointer to input data storage * @param[in/out] io_buflen Input: size of io_buffer (in bytes, always 1) * Output: Success = 1, Failure = 0 * @param[in] i_accessType DeviceFW::AccessType enum (userif.H) * @param[in] i_args This is an argument list for DD framework. * In this function, there are no arguments. * @return errlHndl_t */ errlHndl_t directMemoryPresenceDetect(DeviceFW::OperationType i_opType, TARGETING::Target* i_target, void* io_buffer, size_t& io_buflen, int64_t i_accessType, va_list i_args) { errlHndl_t l_errl = NULL; bool dvpd_present = false; TRACSSCOMP(g_trac_vpd, ENTER_MRK "directMemoryPresenceDetect"); if (unlikely(io_buflen < sizeof(bool))) { TRACFCOMP(g_trac_vpd, ERR_MRK "directMemoryPresenceDetect> Invalid data length: %d", io_buflen); /*@ * @errortype * @moduleid VPD::VPD_DVPD_PRESENCEDETECT * @reasoncode VPD::VPD_INVALID_LENGTH * @userdata1 Data Length * @devdesc presenceDetect> Invalid data length (!= 1 bytes) */ l_errl = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE, VPD::VPD_DVPD_PRESENCEDETECT, VPD::VPD_INVALID_LENGTH, TO_UINT64(io_buflen), true /*SW error*/); io_buflen = 0; return l_errl; } dvpd_present = DVPD::dvpdPresent( i_target ); #if defined(CONFIG_MEMVPD_READ_FROM_HW) && defined(CONFIG_MEMVPD_READ_FROM_PNOR) //skipping cache sync when dvpd is present as it will be taken care by node //vpd if( !dvpd_present ) { TRACFCOMP(g_trac_vpd, ERR_MRK "directMemoryPresenceDetect> failed presence detect"); // Defer invalidating DVPD in the PNOR in case another target might be // sharing this VPD_REC_NUM. Check all targets sharing this // VPD_REC_NUM after target discovery in VPD::validateSharedPnorCache. // Ensure the VPD_SWITCHES cache valid bit is invalid at this point. TARGETING::ATTR_VPD_SWITCHES_type vpdSwitches = i_target->getAttr(); vpdSwitches.pnorCacheValid = 0; i_target->setAttr( vpdSwitches ); } #endif memcpy(io_buffer, &dvpd_present, sizeof(dvpd_present)); io_buflen = sizeof(dvpd_present); TRACSSCOMP(g_trac_vpd, EXIT_MRK "directMemoryPresenceDetect = %d",dvpd_present); return NULL; } // Register as the presence detect for MCSs. DEVICE_REGISTER_ROUTE(DeviceFW::READ, DeviceFW::PRESENT, TARGETING::TYPE_MCS, directMemoryPresenceDetect); #endif bool DVPD::dvpdPresent( TARGETING::Target * i_target ) { TRACSSCOMP( g_trac_vpd, ENTER_MRK"dvpdPresent()"); #if(defined( CONFIG_MEMVPD_READ_FROM_HW ) && !defined( __HOSTBOOT_RUNTIME) ) return EEPROM::eepromPresence( i_target ); #else return Singleton::instance().hasVpdPresent( i_target, //TODO RTC 144519 Update recod/keyword once records/keywords defined // to be used as "sniff test" that vpd is readable. CVPD::VEIR, CVPD::PF ); #endif } //DVPD Class Functions /** * @brief Constructor * Planar VPD is included in the Centaur PNOR section. * Including with Centaur vpd minimizes the number of PNOR sections. */ DvpdFacade::DvpdFacade() : IpVpdFacade(DVPD::dvpdRecords, (sizeof(DVPD::dvpdRecords)/sizeof(DVPD::dvpdRecords[0])), DVPD::dvpdKeywords, (sizeof(DVPD::dvpdKeywords)/sizeof(DVPD::dvpdKeywords[0])), PNOR::CENTAUR_VPD, // note use of CVPD DVPD::g_mutex, VPD::VPD_WRITE_MCS) // Direct access memory { TRACUCOMP(g_trac_vpd, "DvpdFacade::DvpdFacade> " ); #ifdef CONFIG_MEMVPD_READ_FROM_PNOR iv_configInfo.vpdReadPNOR = true; #else iv_configInfo.vpdReadPNOR = false; #endif #ifdef CONFIG_MEMVPD_READ_FROM_HW iv_configInfo.vpdReadHW = true; #else iv_configInfo.vpdReadHW = false; #endif #ifdef CONFIG_MEMVPD_WRITE_TO_PNOR iv_configInfo.vpdWritePNOR = true; #else iv_configInfo.vpdWritePNOR = false; #endif #ifdef CONFIG_MEMVPD_WRITE_TO_HW iv_configInfo.vpdWriteHW = true; #else iv_configInfo.vpdWriteHW = false; #endif iv_vpdSectionSize = DVPD::SECTION_SIZE; iv_vpdMaxSections = DVPD::MAX_SECTIONS; } // Retrun lists of records that should be copied to pnor. void DvpdFacade::getRecordLists( const recordInfo* & o_list1VpdRecords, uint64_t & o_list1RecSize, const recordInfo* & o_list2VpdRecords, uint64_t & o_list2RecSize) { // Always return this object's list o_list1VpdRecords = iv_vpdRecords; o_list1RecSize = iv_recSize; // If the planar eeprom is being shared with direct memory vpd, // then return the pvpd list as the secondlist. // TODO RTC 144519 If there is a separate eeprom for planar // and direct memory VPD, then list2 = NULL size=0; // The pvpd and cvpd may need an update on what configs to check for // sharing. #ifdef CONFIG_PVPD_READ_FROM_PNOR o_list2VpdRecords = Singleton::instance().iv_vpdRecords; o_list2RecSize = Singleton::instance().iv_recSize; #else o_list2VpdRecords = NULL; o_list2RecSize = 0; #endif }