public FlashChipDie(uint channelID, uint overallChipID, uint localChipID, uint dieID,
uint PlanesNoPerDie, uint BlocksNoPerPlane, uint PagesNoPerBlock)
{
CurrentActivePlaneID = 0;
Planes = new FlashChipPlane[PlanesNoPerDie];
for (uint i = 0; i < PlanesNoPerDie; i++)
{
Planes[i] = new FlashChipPlane(channelID, overallChipID, localChipID, dieID, i, BlocksNoPerPlane, PagesNoPerBlock);
}
BlockInfoAbstract = new BlockGroupData[BlocksNoPerPlane];
for (uint i = 0; i < BlocksNoPerPlane; i++)
{
BlockInfoAbstract[i] = new BlockGroupData(i, PagesNoPerBlock * PlanesNoPerDie);
}
}
public void prepare()
{
IntegerPageAddress tempAddress = new IntegerPageAddress(0, 0, 0, 0, 0, 0, 0);
switch (InitialSSDStatus)
{
case InitialStatus.SteadyState:
double validPagesAverage = ((double)initialPercentageOfValidPages / 100) * FTL.PagesNoPerBlock;
double validPagesStdDev = ((double)initialPercentagesOfValidPagesStdDev / 100) * FTL.PagesNoPerBlock;
uint totalAvailableBlocks = FTL.BlockNoPerPlane - (FTL.GarbageCollector.EmergencyThreshold_PlaneFreePages / FTL.PagesNoPerBlock) - 1;
for (uint channelID = 0; channelID < FTL.ChannelCount; channelID++)
{
for (uint chipID = 0; chipID < FTL.ChipNoPerChannel; chipID++)
{
for (uint dieID = 0; dieID < FTL.DieNoPerChip; dieID++)
{
for (uint planeID = 0; planeID < FTL.PlaneNoPerDie; planeID++)
{
FlashChipPlane targetPlane = FTL.ChannelInfos[channelID].FlashChips[chipID].Dies[dieID].Planes[planeID];
for (uint blockID = 0; blockID < totalAvailableBlocks; blockID++)
{
double randomValue = pageStatusRandomGenerator.Normal(validPagesAverage, validPagesStdDev);
if (randomValue < 0)
{
randomValue = validPagesAverage + (validPagesAverage - randomValue);
}
uint numberOfValidPages = Convert.ToUInt32(randomValue); // * FTL.PagesNoPerBlock);
if (numberOfValidPages > FTL.PagesNoPerBlock)
{
numberOfValidPages = FTL.PagesNoPerBlock;
}
for (uint pageID = 0; pageID < numberOfValidPages; pageID++)
{
FTL.MakePageValid(channelID, chipID, dieID, planeID, blockID, pageID);
}
for (uint pageID = numberOfValidPages; pageID < FTL.PagesNoPerBlock; pageID++)
{
FTL.MakePageInvalid(channelID, chipID, dieID, planeID, blockID, pageID);
}
if (FTL.ChannelInfos[channelID].FlashChips[chipID].Dies[dieID].Planes[planeID].Blocks[blockID].FreePageNo != 0)
{
throw new Exception("Huh for free pages");
}
if (FTL.ChannelInfos[channelID].FlashChips[chipID].Dies[dieID].Planes[planeID].Blocks[blockID].LastWrittenPageNo != 255)
{
throw new Exception("Huh for last written page no");
}
}
}
}
}
}
break;
case InitialStatus.Empty:
break;
default:
throw new Exception("Unhandled initial status!");
}
}
