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/* Copyright (c) 1996-2004, Adaptec Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the Adaptec Corporation nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
//File - RAID_HBA.CPP
//***************************************************************************
//
//Description:
//
// This file contains the function definitions for the dptRAIDhba_C
//class.
//
//Author: Doug Anderson
//Date: 3/25/93
//
//Editors:
//
//Remarks:
//
//
//***************************************************************************
//Include Files -------------------------------------------------------------
#include "allfiles.hpp" // All engine include files
//Function - dptRAIDhba_C::dptRAIDhba_C() - start
//===========================================================================
//
//Description:
//
// This function is the constructor for the dptRAIDhba_C class.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
dptRAIDhba_C::dptRAIDhba_C()
{
// Default to DPT logical array page #1 (mode page 0x3b)
lapPage = LAP_DPT1;
privateEngFlags = 0;
// Set up the default RAID definitions
setDefRAID();
}
//dptRAIDhba_C::dptRAIDhba_C() - end
//Function - dptRAIDhba_C::postAddLog() - start
//===========================================================================
//
//Description:
//
// This function is called after an object has been added to the
//logical device list. This function updates the Hot Spare protection
//status for all RAID drives attached to this HBA.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
void dptRAIDhba_C::postAddLog(dptCoreDev_C *dev_P)
{
if (dev_P->isMyObject(this) && dev_P->isLogical())
updateHSprotection();
}
//dptRAIDhba_C::postAddLog() - end
//Function - dptRAIDhba_C::setDefRAID() - start
//===========================================================================
//
//Description:
//
// This function sets up default RAID definitions.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
void dptRAIDhba_C::setDefRAID()
{
raidDef_S *def_P;
// Define RAID 0
def_P = new raidDef_S;
if (def_P!=NULL) {
// Initialize the RAID definition data
// def_P->refNum = 0;
// def_P->type = 0;
// def_P->minDrives = 2;
def_P->maxDrives = 0xffff;
def_P->redundants = 0;
// def_P->minStripe = 1;
// def_P->maxStripe = 0xffffffffL;
// def_P->chanCount = 0xffff;
def_P->required |= FLG_REQ_SAME_STRIPE_SZ |
FLG_REQ_SAME_NUM_STRIPE |
FLG_REQ_UNDER_MULTIPLE;
// def_P->devType = DPT_SCSI_DASD;
def_P->permit |= FLG_COMP_EMULATED;
// Add to the RAID definition list
enterRAIDdef(def_P);
// Set the RAID support flag
raidSupport |= FLG_RAID_0;
}
// Define RAID 1
def_P = new raidDef_S;
if (def_P!=NULL) {
// Initialize the RAID definition data
def_P->refNum = 1;
def_P->type = 1;
def_P->minDrives = 2;
def_P->maxDrives = 2;
def_P->redundants = 0x82;
// def_P->minStripe = 1;
// def_P->maxStripe = 0xffffffffL;
// def_P->chanCount = 0xffff;
def_P->required |= FLG_REQ_SAME_STRIPE_SZ |
FLG_REQ_SAME_NUM_STRIPE;
// def_P->devType = DPT_SCSI_DASD;
def_P->permit |= FLG_COMP_EMULATED;
// Add to the RAID definition list
enterRAIDdef(def_P);
// Set the RAID support flag
raidSupport |= FLG_RAID_1;
}
// Define RAID 3
def_P = new raidDef_S;
if (def_P!=NULL) {
// Initialize the RAID definition data
def_P->refNum = 3;
def_P->type = 3;
def_P->minDrives = 3;
def_P->maxDrives = 0xffff;
// def_P->redundants = 1;
// def_P->minStripe = 1;
def_P->maxStripe = 1;
// def_P->chanCount = 0xffff;
def_P->required |= FLG_REQ_SAME_STRIPE_SZ |
FLG_REQ_SAME_NUM_STRIPE |
FLG_REQ_UNDER_MULTIPLE |
FLG_REQ_POWER_2_PLUS;
// def_P->devType = DPT_SCSI_DASD;
def_P->permit |= FLG_COMP_EMULATED;
// Add to the RAID definition list
enterRAIDdef(def_P);
// Set the RAID support flag
raidSupport |= FLG_RAID_3;
}
// Define RAID 5
def_P = new raidDef_S;
if (def_P!=NULL) {
// Initialize the RAID definition data
def_P->refNum = 5;
def_P->type = 5;
def_P->minDrives = 3;
def_P->maxDrives = 0xffff;
// def_P->redundants = 1;
def_P->minStripe = 1;
// def_P->maxStripe = 0xffffffffL;
// def_P->chanCount = 0xffff;
def_P->required |= FLG_REQ_SAME_STRIPE_SZ |
FLG_REQ_SAME_NUM_STRIPE |
FLG_REQ_UNDER_MULTIPLE;
// def_P->devType = DPT_SCSI_DASD;
def_P->permit |= FLG_COMP_EMULATED;
// Add to the RAID definition list
enterRAIDdef(def_P);
// Set the RAID support flag
raidSupport |= FLG_RAID_5;
}
// Define an HBA Hot Spare
def_P = new raidDef_S;
if (def_P!=NULL) {
// Initialize the RAID definition data
def_P->refNum = RAID_HOT_SPARE;
def_P->type = RAID_HOT_SPARE;
def_P->minDrives = 1;
def_P->maxDrives = 1;
def_P->redundants = 0;
// def_P->minStripe = 1;
// def_P->maxStripe = 0xffffffffL;
// def_P->chanCount = 0xffff;
def_P->required |= FLG_REQ_SUPPRESS | FLG_REQ_RESTRICT;
// def_P->devType = DPT_SCSI_DASD;
def_P->permit |= FLG_COMP_EMULATED;
// Add to the RAID definition list
enterRAIDdef(def_P);
// Set the RAID support flag
raidSupport |= FLG_RAID_HOT_SPARE;
}
// Define a re-directed drive
def_P = new raidDef_S;
if (def_P!=NULL) {
// Initialize the RAID definition data
def_P->refNum = RAID_REDIRECT;
def_P->type = RAID_REDIRECT;
def_P->minDrives = 1;
def_P->maxDrives = 1;
def_P->redundants = 0;
// def_P->minStripe = 1;
// def_P->maxStripe = 0xffffffffL;
// def_P->chanCount = 0xffff;
// def_P->required = 0;
// def_P->devType = DPT_SCSI_DASD;
def_P->permit |= FLG_COMP_EMULATED;
// Add to the RAID definition list
enterRAIDdef(def_P);
// Set the RAID support flag
raidSupport |= FLG_RAID_REDIRECT;
}
}
//dptRAIDhba_C::setDefRAID() - end
//Function - dptRAIDhba_C::updateHSprotection() - start
//===========================================================================
//
//Description:
//
// This function updates the Hot Spare protection status of RAID drives
//with at least 1 redundant drive.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
void dptRAIDhba_C::updateHSprotection()
{
uLONG hsMaxLBA = 0;
// Find the largest optimal Hot Spare
dptRAIDdev_C *dev_P = (dptRAIDdev_C *) logList.reset();
while (dev_P!=NULL) {
// If the device is a valid Hot-Spare...
if (dev_P->isValidHotSpare()) {
// Get the Hot-Spare's physical component
dptRAIDdev_C *comp_P = (dptRAIDdev_C *) dev_P->compList.reset();
if (comp_P != NULL) {
// If the physical component is ready...
// (for IBM drives with a switch to turn off the motor)
// (done at Olivetti's request)
if (comp_P->isReady()) {
// Get the largest optimal Hot Spare
if (dev_P->getLastLBA() > hsMaxLBA)
hsMaxLBA = dev_P->getLastLBA();
}
}
}
dev_P = (dptRAIDdev_C *) logList.next();
}
dev_P = (dptRAIDdev_C *) logList.reset();
while (dev_P!=NULL) {
// If the device is attached to this HBA...
if (dev_P->isMyObject(this))
// Set the Hot Spare coverage status
dev_P->setHScoverage(hsMaxLBA);
dev_P = (dptRAIDdev_C *) logList.next();
}
/* // clear any old HS protectecion flags
dptRAIDdev_C *dev_P = (dptRAIDdev_C *) logList.reset();
while (dev_P!=NULL) {
// If the device is attached to this HBA...
if (dev_P->isMyObject(this))
// Set the Hot Spare coverage status
dev_P->setHScoverage(0);
dev_P = (dptRAIDdev_C *) logList.next();
}
// look at all the HS's and find arrays it protects
dptRAIDdev_C *hs_P = (dptRAIDdev_C *) logList.reset();
while (hs_P!=NULL) {
// If the device is a valid Hot-Spare...
if (hs_P->isValidHotSpare()) {
// Get the Hot-Spare's physical component
dptRAIDdev_C *comp_P = (dptRAIDdev_C *) hs_P->compList.reset();
if (comp_P != NULL) {
// If the physical component is ready...
// (for IBM drives with a switch to turn off the motor)
// (done at Olivetti's request)
if (comp_P->isReady()) {
// get the addr of the HS
dptAddr_S hsAddr = hs_P->getAddr();
// now we go thru the list again, finding components that are on the same channel
// if they are see if the HS will protect it iff the array is not already protected
dptRAIDdev_C *raid_P = (dptRAIDdev_C *) logList.reset();
// look thru all the arrays
while(raid_P) {
// if the array is attached to this hba and its not already protected
if (raid_P->isMyObject(this) && !raid_P->isHSprotected()) {
// get the addr of the array
dptAddr_S raidAddr = raid_P->getAddr();
// if the channels match, let it determine if it is protected
if (hsAddr.chan == raidAddr.chan)
raid_P->setHScoverage(hs_P->getLastLBA());
}
raid_P = (dptRAIDdev_C *) logList.next();
}
// set the logical list back to our hotspare so we can continue the search
logList.exists(hs_P);
}
}
}
hs_P = (dptRAIDdev_C *) logList.next();
} */
}
//dptRAIDhba_C::updateHSprotection() - end
//Function - dptRAIDhba_C::postDelete() - start
//===========================================================================
//
//Description:
//
// This function is called after an object has been removed from
//all core lists and before the object is freed from memory.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
void dptRAIDhba_C::postDelete(dptCoreObj_C *obj_P)
{
if (obj_P->isDevice())
// If the device is a Hot Spare...
if (((dptRAIDdev_C *)obj_P)->getRAIDtype()==RAID_HOT_SPARE)
// Update the Hot Spare protection status
updateHSprotection();
}
//dptRAIDhba_C::postDelete() - end
//Function - dptRAIDhba_C::isRAIDcapable() - start
//===========================================================================
//
//Description:
//
// This function determines if this HBA is capable of configuring
//RAID devices.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
uSHORT dptRAIDhba_C::isRAIDcapable()
{
uSHORT capable = 0;
// If the device is capable of supportng RAID...
if (isI2O())
capable = 1;
else if (isRAIDmodule() && is512kCache() && (flags & FLG_HBA_RAID_FW))
capable = 1;
return (capable);
}
//dptRAIDhba_C::isRAIDcapable() - end
//Function - dptRAIDhba_C::isRAIDready() - start
//===========================================================================
//
//Description:
//
// This function determines if this HBA can configure RAID devices.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
uSHORT dptRAIDhba_C::isRAIDready()
{
uSHORT ready = 0;
// If the device is capable of supportng RAID...
if (isRAIDcapable())
ready = findDASD(phyList);
return (ready);
}
//dptRAIDhba_C::isRAIDready() - end
//Function - dptRAIDhba_C::getObjFlags() - start
//===========================================================================
//
//Description:
//
// This function sets RAID HBA flags.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
void dptRAIDhba_C::getObjFlags(uSHORT &flg)
{
// Set base class flags
dptSCSIhba_C::getObjFlags(flg);
// If this object is capable of supporting RAID...
if (isRAIDcapable())
flg |= FLG_HBA_RAID_CAPABLE;
// If this object can currently support RAID...
if (isRAIDready())
flg |= FLG_HBA_RAID_READY;
}
//dptRAIDhba_C::getObjFlags() - end
//Function - dptRAIDhba_C::handleMessage() - start
//===========================================================================
//
//Description:
//
// This routine handles DPT events for the dptRAIDhba_C class.
//
//Parameters:
//
//Return Value:
//
//Global Variables Affected:
//
//Remarks: (Side effects, Assumptions, Warnings...)
//
//
//---------------------------------------------------------------------------
DPT_RTN_T dptRAIDhba_C::handleMessage(DPT_MSG_T message,
dptBuffer_S *fromEng_P,
dptBuffer_S *toEng_P
)
{
DPT_RTN_T retVal = MSG_RTN_IGNORED;
switch (message) {
// Create a new RAID device
case MSG_RAID_NEW:
if (isRAIDready())
retVal = newRAID(fromEng_P,toEng_P,0);
break;
// Create an invalid (ghosted) RAID device
case MSG_RAID_GHOST:
if (isRAIDready())
retVal = newRAID(fromEng_P,toEng_P,1);
break;
// Create an invalid (ghosted) RAID device
case MSG_GET_MEMBANK_CAPACITIES:
retVal = rtnMembankCapacities(fromEng_P);
break;
default:
// Call base class event handler
retVal = dptSCSIhba_C::handleMessage(message,fromEng_P,toEng_P);
break;
} // end switch
return (retVal);
}
//dptRAIDhba_C::handleMessage() - end
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