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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/include/usr/hwpf/plat/fapiPlatAttrOverrideSync.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2012,2014 */
/* [+] 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 */
/**
* @file fapiPlatAttrOverrideSync.H
*
* @brief Defines the AttrOverrideSync class that contains functions for
* Attribute Override and Sync
*/
#ifndef FAPIPLATATTROVERRIDESYNC_H_
#define FAPIPLATATTROVERRIDESYNC_H_
//******************************************************************************
// Includes
//******************************************************************************
#include <stdint.h>
#include <errl/errlentry.H>
#include <mbox/mboxif.H>
#include <fapiAttributeIds.H>
#include <targeting/common/attributeTank.H>
#include <pnor/pnorif.H>
//******************************************************************************
// Interface
//******************************************************************************
namespace TARGETING
{
errlHndl_t getAttrOverrides(PNOR::SectionInfo_t &i_sectionInfo,
AttributeTank* io_tanks[AttributeTank::TANK_LAYER_LAST]);
}
namespace fapi
{
// Forward references
class AttrOverrideSync;
class Target;
/**
* @brief Return the AttrOverrideSync Singleton. Other modules must call this
* rather than using Singleton<>
*
* @return Reference to the AttrOverrideSync Singleton
*/
AttrOverrideSync & theAttrOverrideSync();
/**
* @class AttrOverrideSync
*
* This class contains the FAPI Attribute Override and Sync tanks. It provides
* functions to:
* - Monitor for incoming attribute override/sync messages from the FSP
* - Send attribute override/syncs to the FSP
* - Return any attribute override on an attribute get
* - Cancel any non-const attribute override and save the attribute in the sync
* tank on an attribute set
*/
class AttrOverrideSync
{
public:
/**
* @brief Allow a debug tool to directly access the override tank
*/
friend void directOverride();
/**
* @brief Allow a attribute override to directly access the override tank
*/
friend errlHndl_t TARGETING::getAttrOverrides(
PNOR::SectionInfo_t &i_sectionInfo,
TARGETING::AttributeTank*
io_tanks[TARGETING::AttributeTank::TANK_LAYER_LAST]);
/**
* @brief Maximum size of a direct attribute override
*/
static const size_t MAX_DIRECT_OVERRIDE_ATTR_SIZE_BYTES = 64;
/**
* @brief Attribute Override/Sync Mailbox Message Type Constants
* These must be kept in sync with FSP firmware
*/
enum MAILBOX_MSG_TYPE
{
MSG_SET_OVERRIDES = MBOX::FIRST_UNSECURE_MSG + 0x10, // FSP<->Hb
MSG_CLEAR_ALL_OVERRIDES = MBOX::FIRST_UNSECURE_MSG + 0x11, // FSP<->Hb
MSG_SET_SYNC_ATTS = MBOX::FIRST_UNSECURE_MSG + 0x12, // FSP<--Hb
MSG_GET_OVERRIDES = MBOX::FIRST_UNSECURE_MSG + 0x13, // FSP<--Hb
};
/**
* @brief Default constructor
*/
AttrOverrideSync();
/**
* @brief Destructor
*/
~AttrOverrideSync();
/**
* @brief Monitors for incoming attribute override messages from the FSP.
* This function never returns and must be called by a task
* specifically started to monitor for these messages
*/
void monitorForFspMessages();
/**
* @brief Sends Attribute Overrides and Syncs to the FSP
*
* This is called at the end of an IStep. For both FAPI/TARG tanks it:
* - Clears the FSP Attribute Overrides
* - Sends the Hostboot Attribute Overrides to the FSP
* - Sends the Hostboot Attribute Syncs to the FSP
*/
void sendAttrOverridesAndSyncsToFsp();
/**
* @brief Gets Attribute Overrides and Syncs from the FSP
*
* This is called at the start of a normal (non-istep) IPL if an attribute
* is set indicating that the FSP has attribute overrides in place
*/
void getAttrOverridesFromFsp();
/**
* @brief This function gets any Attribute Override on an attribute get
*
* This is called for those FAPI Attributes that do not map to Targeting
* attributes - their overrides live in the FAPI Attribute tanks.
*
* @param[in] i_attrId FAPI Attribute ID
* @param[in] i_pTarget Pointer to FAPI Target
* @param[in] o_pVal Pointer to attribute value
*
* @return true if an override exists and was written to o_pVal
*/
bool getAttrOverride(const fapi::AttributeId i_attrId,
const fapi::Target * const i_pTarget,
void * o_pVal) const;
/**
* @brief This function gets any Attribute Override on an attribute get
*
* This is a wrapper that calls getAttrOverride on the AttrOverrideSync
* singleton, it should be called by external modules to avoid the
* performance penalty of calling theAttrOverrideSync() then getAttrOverride
*
* @param[in] i_attrId FAPI Attribute ID
* @param[in] i_pTarget Pointer to FAPI Target
* @param[in] o_pVal Pointer to attribute value
*
* @return true if an override exists and was written to o_pVal
*/
static bool getAttrOverrideFunc(const fapi::AttributeId i_attrId,
const fapi::Target * const i_pTarget,
void * o_pVal);
/**
* @brief This function performs the actions required on an attribute set
*
* This is called for those FAPI Attributes that do not map to Targeting
* attributes - their overrides/syncs live in the FAPI Attribute tanks.
*
* - Any non-const attribute override is cleared
* - The attribute is saved to be synced to Cronus (if Cronus Sync enabled)
*
* @param[in] i_attrId FAPI Attribute ID
* @param[in] i_pTarget Pointer to FAPI Target
* @param[in] i_size Size of attribute value
* @param[in] i_pVal Pointer to attribute value
*/
void setAttrActions(const fapi::AttributeId i_attrId,
const fapi::Target * const i_pTarget,
const uint32_t i_size,
const void * i_pVal);
/**
* @brief This function performs the actions required on an attribute set
*
* This is a wrapper that calls setAttrActions on the AttrOverrideSync
* singleton, it should be called by external modules to avoid the
* performance penalty of calling theAttrOverrideSync() then setAttrActions
*
* @param[in] i_attrId FAPI Attribute ID
* @param[in] i_pTarget Pointer to FAPI Target
* @param[in] i_size Size of attribute value
* @param[in] i_pVal Pointer to attribute value
*/
static void setAttrActionsFunc(const fapi::AttributeId i_attrId,
const fapi::Target * const i_pTarget,
const uint32_t i_size,
const void * i_pVal);
private:
/**
* @brief Utility function that sends attributes to the FSP
*
* This function frees the allocated memory in the input vector of chunks
* and empties the vector
*
* @param[in] i_msgType Message type (ID) to send
* @param[in] i_tankLayer Tank Layer to send attribute to
* @param[io] io_attributes Attributes to send.
*
* @return error log handle
*/
static errlHndl_t sendAttrsToFsp(
const MAILBOX_MSG_TYPE i_msgType,
const TARGETING::AttributeTank::TankLayer i_tankLayer,
std::vector<TARGETING::AttributeTank::AttributeSerializedChunk> &
io_attributes);
/**
* @brief Utility function that gets the target type of a FAPI Target as
* used in an attribute tank
*
* @param[in] i_pTarget Pointer to FAPI Target (NULL = system)
*
* @return Target Type
*/
static uint32_t getTargetType(const fapi::Target * const i_pTarget);
// The FAPI Attribute Tanks
TARGETING::AttributeTank iv_overrideTank;
TARGETING::AttributeTank iv_syncTank;
};
} // namespace fapi
#endif // FAPIPLATATTROVERRIDESYNC_H_
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