/*
* Called whenever an array is shutdown
*/
static void
rf_UnconfigureArray()
{
int rc;
RF_LOCK_MUTEX(configureMutex);
if (--configureCount == 0) { /* if no active configurations, shut
* everything down */
isconfigged = 0;
rc = rf_ShutdownList(&globalShutdown);
if (rc) {
RF_ERRORMSG1("RAIDFRAME: unable to do global shutdown, rc=%d\n", rc);
}
rf_shutdown_threadid();
/*
* We must wait until now, because the AllocList module
* uses the DebugMem module.
*/
if (rf_memDebug)
rf_print_unfreed();
}
RF_UNLOCK_MUTEX(configureMutex);
}
static void
set_debug_option(char *name, long val)
{
RF_DebugName_t *p;
for (p = rf_debugNames; p->name; p++) {
if (!strcmp(p->name, name)) {
*(p->ptr) = val;
printf("[Set debug variable %s to %ld]\n", name, val);
return;
}
}
RF_ERRORMSG1("Unknown debug string \"%s\"\n", name);
}
/****************************************************************************************
*
* initialize the disks comprising the array
*
* We want the spare disks to have regular row,col numbers so that we can easily
* substitue a spare for a failed disk. But, the driver code assumes throughout
* that the array contains numRow by numCol _non-spare_ disks, so it's not clear
* how to fit in the spares. This is an unfortunate holdover from raidSim. The
* quick and dirty fix is to make row zero bigger than the rest, and put all the
* spares in it. This probably needs to get changed eventually.
*
***************************************************************************************/
int
rf_ConfigureDisks(
RF_ShutdownList_t ** listp,
RF_Raid_t * raidPtr,
RF_Config_t * cfgPtr)
{
RF_RaidDisk_t **disks;
RF_SectorCount_t min_numblks = (RF_SectorCount_t) 0x7FFFFFFFFFFFLL;
RF_RowCol_t r, c;
int bs, ret;
unsigned i, count, foundone = 0, numFailuresThisRow;
RF_DiskOp_t *rdcap_op = NULL, *tur_op = NULL;
int num_rows_done, num_cols_done;
struct proc *proc = 0;
#if !defined(__NetBSD__) && !defined(__OpenBSD__)
ret = rf_SCSI_AllocReadCapacity(&rdcap_op);
if (ret)
goto fail;
ret = rf_SCSI_AllocTUR(&tur_op);
if (ret)
goto fail;
#endif /* !__NetBSD__ && !__OpenBSD__ */
num_rows_done = 0;
num_cols_done = 0;
RF_CallocAndAdd(disks, raidPtr->numRow, sizeof(RF_RaidDisk_t *), (RF_RaidDisk_t **), raidPtr->cleanupList);
if (disks == NULL) {
ret = ENOMEM;
goto fail;
}
raidPtr->Disks = disks;
proc = raidPtr->proc; /* Blah XXX */
/* get space for the device-specific stuff... */
RF_CallocAndAdd(raidPtr->raid_cinfo, raidPtr->numRow,
sizeof(struct raidcinfo *), (struct raidcinfo **),
raidPtr->cleanupList);
if (raidPtr->raid_cinfo == NULL) {
ret = ENOMEM;
goto fail;
}
for (r = 0; r < raidPtr->numRow; r++) {
numFailuresThisRow = 0;
RF_CallocAndAdd(disks[r], raidPtr->numCol + ((r == 0) ? raidPtr->numSpare : 0), sizeof(RF_RaidDisk_t), (RF_RaidDisk_t *), raidPtr->cleanupList);
if (disks[r] == NULL) {
ret = ENOMEM;
goto fail;
}
/* get more space for device specific stuff.. */
RF_CallocAndAdd(raidPtr->raid_cinfo[r],
raidPtr->numCol + ((r == 0) ? raidPtr->numSpare : 0),
sizeof(struct raidcinfo), (struct raidcinfo *),
raidPtr->cleanupList);
if (raidPtr->raid_cinfo[r] == NULL) {
ret = ENOMEM;
goto fail;
}
for (c = 0; c < raidPtr->numCol; c++) {
ret = rf_ConfigureDisk(raidPtr, &cfgPtr->devnames[r][c][0],
&disks[r][c], rdcap_op, tur_op,
cfgPtr->devs[r][c], r, c);
if (ret)
goto fail;
if (disks[r][c].status != rf_ds_optimal) {
numFailuresThisRow++;
} else {
if (disks[r][c].numBlocks < min_numblks)
min_numblks = disks[r][c].numBlocks;
DPRINTF7("Disk at row %d col %d: dev %s numBlocks %ld blockSize %d (%ld MB)\n",
r, c, disks[r][c].devname,
(long int) disks[r][c].numBlocks,
disks[r][c].blockSize,
(long int) disks[r][c].numBlocks * disks[r][c].blockSize / 1024 / 1024);
}
num_cols_done++;
}
/* XXX fix for n-fault tolerant */
if (numFailuresThisRow > 0)
raidPtr->status[r] = rf_rs_degraded;
num_rows_done++;
}
#if (defined(__NetBSD__) || defined(__OpenBSD__)) && defined(_KERNEL)
/* we do nothing */
#else
rf_SCSI_FreeDiskOp(rdcap_op, 1);
rdcap_op = NULL;
rf_SCSI_FreeDiskOp(tur_op, 0);
tur_op = NULL;
#endif
/* all disks must be the same size & have the same block size, bs must
* be a power of 2 */
bs = 0;
for (foundone = r = 0; !foundone && r < raidPtr->numRow; r++) {
for (c = 0; !foundone && c < raidPtr->numCol; c++) {
if (disks[r][c].status == rf_ds_optimal) {
bs = disks[r][c].blockSize;
foundone = 1;
}
}
}
if (!foundone) {
RF_ERRORMSG("RAIDFRAME: Did not find any live disks in the array.\n");
ret = EINVAL;
goto fail;
}
for (count = 0, i = 1; i; i <<= 1)
if (bs & i)
count++;
if (count != 1) {
RF_ERRORMSG1("Error: block size on disks (%d) must be a power of 2\n", bs);
ret = EINVAL;
goto fail;
}
for (r = 0; r < raidPtr->numRow; r++) {
for (c = 0; c < raidPtr->numCol; c++) {
if (disks[r][c].status == rf_ds_optimal) {
if (disks[r][c].blockSize != bs) {
RF_ERRORMSG2("Error: block size of disk at r %d c %d different from disk at r 0 c 0\n", r, c);
ret = EINVAL;
goto fail;
}
if (disks[r][c].numBlocks != min_numblks) {
RF_ERRORMSG3("WARNING: truncating disk at r %d c %d to %d blocks\n",
r, c, (int) min_numblks);
disks[r][c].numBlocks = min_numblks;
}
}
}
}
raidPtr->sectorsPerDisk = min_numblks;
raidPtr->logBytesPerSector = ffs(bs) - 1;
raidPtr->bytesPerSector = bs;
raidPtr->sectorMask = bs - 1;
return (0);
fail:
#if (defined(__NetBSD__) || defined(__OpenBSD__)) && defined(_KERNEL)
for (r = 0; r < raidPtr->numRow; r++) {
for (c = 0; c < raidPtr->numCol; c++) {
/* Cleanup.. */
#ifdef DEBUG
printf("Cleaning up row: %d col: %d\n", r, c);
#endif
if (raidPtr->raid_cinfo[r][c].ci_vp) {
(void) vn_close(raidPtr->raid_cinfo[r][c].ci_vp,
FREAD | FWRITE, proc->p_ucred, proc);
}
}
}
/* Space allocated for raid_vpp will get cleaned up at some other
* point */
/* XXX Need more #ifdefs in the above... */
#else
if (rdcap_op)
rf_SCSI_FreeDiskOp(rdcap_op, 1);
if (tur_op)
rf_SCSI_FreeDiskOp(tur_op, 0);
#endif
return (ret);
}
/****************************************************************************************
* set up the data structures describing the spare disks in the array
* recall from the above comment that the spare disk descriptors are stored
* in row zero, which is specially expanded to hold them.
***************************************************************************************/
int
rf_ConfigureSpareDisks(
RF_ShutdownList_t ** listp,
RF_Raid_t * raidPtr,
RF_Config_t * cfgPtr)
{
char buf[256];
int r, c, i, ret;
RF_DiskOp_t *rdcap_op = NULL, *tur_op = NULL;
unsigned bs;
RF_RaidDisk_t *disks;
int num_spares_done;
struct proc *proc;
#if !defined(__NetBSD__) && !defined(__OpenBSD__)
ret = rf_SCSI_AllocReadCapacity(&rdcap_op);
if (ret)
goto fail;
ret = rf_SCSI_AllocTUR(&tur_op);
if (ret)
goto fail;
#endif /* !__NetBSD__ && !__OpenBSD__ */
num_spares_done = 0;
proc = raidPtr->proc;
/* The space for the spares should have already been allocated by
* ConfigureDisks() */
disks = &raidPtr->Disks[0][raidPtr->numCol];
for (i = 0; i < raidPtr->numSpare; i++) {
ret = rf_ConfigureDisk(raidPtr, &cfgPtr->spare_names[i][0],
&disks[i], rdcap_op, tur_op,
cfgPtr->spare_devs[i], 0, raidPtr->numCol + i);
if (ret)
goto fail;
if (disks[i].status != rf_ds_optimal) {
RF_ERRORMSG1("Warning: spare disk %s failed TUR\n", buf);
} else {
disks[i].status = rf_ds_spare; /* change status to
* spare */
DPRINTF6("Spare Disk %d: dev %s numBlocks %ld blockSize %d (%ld MB)\n", i,
disks[i].devname,
(long int) disks[i].numBlocks, disks[i].blockSize,
(long int) disks[i].numBlocks * disks[i].blockSize / 1024 / 1024);
}
num_spares_done++;
}
#if (defined(__NetBSD__) || defined(__OpenBSD__)) && (_KERNEL)
#else
rf_SCSI_FreeDiskOp(rdcap_op, 1);
rdcap_op = NULL;
rf_SCSI_FreeDiskOp(tur_op, 0);
tur_op = NULL;
#endif
/* check sizes and block sizes on spare disks */
bs = 1 << raidPtr->logBytesPerSector;
for (i = 0; i < raidPtr->numSpare; i++) {
if (disks[i].blockSize != bs) {
RF_ERRORMSG3("Block size of %d on spare disk %s is not the same as on other disks (%d)\n", disks[i].blockSize, disks[i].devname, bs);
ret = EINVAL;
goto fail;
}
if (disks[i].numBlocks < raidPtr->sectorsPerDisk) {
RF_ERRORMSG3("Spare disk %s (%d blocks) is too small to serve as a spare (need %ld blocks)\n",
disks[i].devname, disks[i].blockSize, (long int) raidPtr->sectorsPerDisk);
ret = EINVAL;
goto fail;
} else
if (disks[i].numBlocks > raidPtr->sectorsPerDisk) {
RF_ERRORMSG2("Warning: truncating spare disk %s to %ld blocks\n", disks[i].devname, (long int) raidPtr->sectorsPerDisk);
disks[i].numBlocks = raidPtr->sectorsPerDisk;
}
}
return (0);
fail:
#if (defined(__NetBSD__) || defined(__OpenBSD__)) && defined(_KERNEL)
/* Release the hold on the main components. We've failed to allocate
* a spare, and since we're failing, we need to free things.. */
for (r = 0; r < raidPtr->numRow; r++) {
for (c = 0; c < raidPtr->numCol; c++) {
/* Cleanup.. */
#ifdef DEBUG
printf("Cleaning up row: %d col: %d\n", r, c);
#endif
if (raidPtr->raid_cinfo[r][c].ci_vp) {
(void) vn_close(raidPtr->raid_cinfo[r][c].ci_vp,
FREAD | FWRITE, proc->p_ucred, proc);
}
}
}
for (i = 0; i < raidPtr->numSpare; i++) {
/* Cleanup.. */
#ifdef DEBUG
printf("Cleaning up spare: %d\n", i);
#endif
if (raidPtr->raid_cinfo[0][raidPtr->numCol + i].ci_vp) {
(void) vn_close(raidPtr->raid_cinfo[0][raidPtr->numCol + i].ci_vp,
FREAD | FWRITE, proc->p_ucred, proc);
}
}
#else
if (rdcap_op)
rf_SCSI_FreeDiskOp(rdcap_op, 1);
if (tur_op)
rf_SCSI_FreeDiskOp(tur_op, 0);
#endif
return (ret);
}
/****************************************************************************
* Set up the data structures describing the spare disks in the array.
* Recall from the above comment that the spare disk descriptors are stored
* in row zero, which is specially expanded to hold them.
****************************************************************************/
int
rf_ConfigureSpareDisks(RF_ShutdownList_t ** listp, RF_Raid_t * raidPtr,
RF_Config_t * cfgPtr)
{
int i, ret;
unsigned int bs;
RF_RaidDisk_t *disks;
int num_spares_done;
num_spares_done = 0;
/*
* The space for the spares should have already been allocated by
* ConfigureDisks().
*/
disks = &raidPtr->Disks[0][raidPtr->numCol];
for (i = 0; i < raidPtr->numSpare; i++) {
ret = rf_ConfigureDisk(raidPtr, &cfgPtr->spare_names[i][0],
&disks[i], 0, raidPtr->numCol + i);
if (ret)
goto fail;
if (disks[i].status != rf_ds_optimal) {
RF_ERRORMSG1("Warning: spare disk %s failed TUR\n",
&cfgPtr->spare_names[i][0]);
} else {
/* Change status to spare. */
disks[i].status = rf_ds_spare;
DPRINTF6("Spare Disk %d: dev %s numBlocks %ld"
" blockSize %d (%ld MB).\n", i, disks[i].devname,
(long int) disks[i].numBlocks, disks[i].blockSize,
(long int) disks[i].numBlocks *
disks[i].blockSize / 1024 / 1024);
}
num_spares_done++;
}
/* Check sizes and block sizes on spare disks. */
bs = 1 << raidPtr->logBytesPerSector;
for (i = 0; i < raidPtr->numSpare; i++) {
if (disks[i].blockSize != bs) {
RF_ERRORMSG3("Block size of %d on spare disk %s is"
" not the same as on other disks (%d).\n",
disks[i].blockSize, disks[i].devname, bs);
ret = EINVAL;
goto fail;
}
if (disks[i].numBlocks < raidPtr->sectorsPerDisk) {
RF_ERRORMSG3("Spare disk %s (%llu blocks) is too small"
" to serve as a spare (need %llu blocks).\n",
disks[i].devname, disks[i].numBlocks,
raidPtr->sectorsPerDisk);
ret = EINVAL;
goto fail;
} else
if (disks[i].numBlocks > raidPtr->sectorsPerDisk) {
RF_ERRORMSG2("Warning: truncating spare disk"
" %s to %llu blocks.\n", disks[i].devname,
raidPtr->sectorsPerDisk);
disks[i].numBlocks = raidPtr->sectorsPerDisk;
}
}
return (0);
fail:
/*
* Release the hold on the main components. We've failed to allocate
* a spare, and since we're failing, we need to free things...
*
* XXX Failing to allocate a spare is *not* that big of a deal...
* We *can* survive without it, if need be, esp. if we get hot
* adding working.
* If we don't fail out here, then we need a way to remove this spare...
* That should be easier to do here than if we are "live"...
*/
rf_UnconfigureVnodes(raidPtr);
return (ret);
}
/****************************************************************************
*
* Initialize the disks comprising the array.
*
* We want the spare disks to have regular row,col numbers so that we can
* easily substitue a spare for a failed disk. But, the driver code assumes
* throughout that the array contains numRow by numCol _non-spare_ disks, so
* it's not clear how to fit in the spares. This is an unfortunate holdover
* from raidSim. The quick and dirty fix is to make row zero bigger than the
* rest, and put all the spares in it. This probably needs to get changed
* eventually.
*
****************************************************************************/
int
rf_ConfigureDisks(RF_ShutdownList_t **listp, RF_Raid_t *raidPtr,
RF_Config_t *cfgPtr)
{
RF_RaidDisk_t **disks;
RF_SectorCount_t min_numblks = (RF_SectorCount_t) 0x7FFFFFFFFFFFLL;
RF_RowCol_t r, c;
int bs, ret;
unsigned i, count, foundone = 0, numFailuresThisRow;
int force;
force = cfgPtr->force;
ret = rf_AllocDiskStructures(raidPtr, cfgPtr);
if (ret)
goto fail;
disks = raidPtr->Disks;
for (r = 0; r < raidPtr->numRow; r++) {
numFailuresThisRow = 0;
for (c = 0; c < raidPtr->numCol; c++) {
ret = rf_ConfigureDisk(raidPtr,
&cfgPtr->devnames[r][c][0], &disks[r][c], r, c);
if (ret)
goto fail;
if (disks[r][c].status == rf_ds_optimal) {
raidread_component_label(
raidPtr->raid_cinfo[r][c].ci_dev,
raidPtr->raid_cinfo[r][c].ci_vp,
&raidPtr->raid_cinfo[r][c].ci_label);
}
if (disks[r][c].status != rf_ds_optimal) {
numFailuresThisRow++;
} else {
if (disks[r][c].numBlocks < min_numblks)
min_numblks = disks[r][c].numBlocks;
DPRINTF7("Disk at row %d col %d: dev %s"
" numBlocks %ld blockSize %d (%ld MB)\n",
r, c, disks[r][c].devname,
(long int) disks[r][c].numBlocks,
disks[r][c].blockSize,
(long int) disks[r][c].numBlocks *
disks[r][c].blockSize / 1024 / 1024);
}
}
/* XXX Fix for n-fault tolerant. */
/*
* XXX This should probably check to see how many failures
* we can handle for this configuration !
*/
if (numFailuresThisRow > 0)
raidPtr->status[r] = rf_rs_degraded;
}
/*
* All disks must be the same size & have the same block size, bs must
* be a power of 2.
*/
bs = 0;
for (foundone = r = 0; !foundone && r < raidPtr->numRow; r++) {
for (c = 0; !foundone && c < raidPtr->numCol; c++) {
if (disks[r][c].status == rf_ds_optimal) {
bs = disks[r][c].blockSize;
foundone = 1;
}
}
}
if (!foundone) {
RF_ERRORMSG("RAIDFRAME: Did not find any live disks in"
" the array.\n");
ret = EINVAL;
goto fail;
}
for (count = 0, i = 1; i; i <<= 1)
if (bs & i)
count++;
if (count != 1) {
RF_ERRORMSG1("Error: block size on disks (%d) must be a"
" power of 2.\n", bs);
ret = EINVAL;
goto fail;
}
if (rf_CheckLabels(raidPtr, cfgPtr)) {
printf("raid%d: There were fatal errors\n", raidPtr->raidid);
if (force != 0) {
printf("raid%d: Fatal errors being ignored.\n",
raidPtr->raidid);
} else {
ret = EINVAL;
goto fail;
}
}
for (r = 0; r < raidPtr->numRow; r++) {
for (c = 0; c < raidPtr->numCol; c++) {
if (disks[r][c].status == rf_ds_optimal) {
if (disks[r][c].blockSize != bs) {
RF_ERRORMSG2("Error: block size of"
" disk at r %d c %d different from"
" disk at r 0 c 0.\n", r, c);
ret = EINVAL;
goto fail;
}
if (disks[r][c].numBlocks != min_numblks) {
RF_ERRORMSG3("WARNING: truncating disk"
" at r %d c %d to %d blocks.\n",
r, c, (int) min_numblks);
disks[r][c].numBlocks = min_numblks;
}
}
}
}
raidPtr->sectorsPerDisk = min_numblks;
raidPtr->logBytesPerSector = ffs(bs) - 1;
raidPtr->bytesPerSector = bs;
raidPtr->sectorMask = bs - 1;
return (0);
fail:
rf_UnconfigureVnodes(raidPtr);
return (ret);
}
int
rf_add_hot_spare(RF_Raid_t *raidPtr, RF_SingleComponent_t *sparePtr)
{
RF_RaidDisk_t *disks;
RF_DiskQueue_t *spareQueues;
int ret;
unsigned int bs;
int spare_number;
#if 0
printf("Just in rf_add_hot_spare: %d.\n", raidPtr->numSpare);
printf("Num col: %d.\n", raidPtr->numCol);
#endif
if (raidPtr->numSpare >= RF_MAXSPARE) {
RF_ERRORMSG1("Too many spares: %d.\n", raidPtr->numSpare);
return(EINVAL);
}
RF_LOCK_MUTEX(raidPtr->mutex);
/* The beginning of the spares... */
disks = &raidPtr->Disks[0][raidPtr->numCol];
spare_number = raidPtr->numSpare;
ret = rf_ConfigureDisk(raidPtr, sparePtr->component_name,
&disks[spare_number], 0, raidPtr->numCol + spare_number);
if (ret)
goto fail;
if (disks[spare_number].status != rf_ds_optimal) {
RF_ERRORMSG1("Warning: spare disk %s failed TUR.\n",
sparePtr->component_name);
ret = EINVAL;
goto fail;
} else {
disks[spare_number].status = rf_ds_spare;
DPRINTF6("Spare Disk %d: dev %s numBlocks %ld blockSize %d"
" (%ld MB).\n", spare_number, disks[spare_number].devname,
(long int) disks[spare_number].numBlocks,
disks[spare_number].blockSize,
(long int) disks[spare_number].numBlocks *
disks[spare_number].blockSize / 1024 / 1024);
}
/* Check sizes and block sizes on the spare disk. */
bs = 1 << raidPtr->logBytesPerSector;
if (disks[spare_number].blockSize != bs) {
RF_ERRORMSG3("Block size of %d on spare disk %s is not"
" the same as on other disks (%d).\n",
disks[spare_number].blockSize,
disks[spare_number].devname, bs);
ret = EINVAL;
goto fail;
}
if (disks[spare_number].numBlocks < raidPtr->sectorsPerDisk) {
RF_ERRORMSG3("Spare disk %s (%llu blocks) is too small to serve"
" as a spare (need %llu blocks).\n",
disks[spare_number].devname, disks[spare_number].numBlocks,
raidPtr->sectorsPerDisk);
ret = EINVAL;
goto fail;
} else {
if (disks[spare_number].numBlocks >
raidPtr->sectorsPerDisk) {
RF_ERRORMSG2("Warning: truncating spare disk %s to %llu"
" blocks.\n", disks[spare_number].devname,
raidPtr->sectorsPerDisk);
disks[spare_number].numBlocks = raidPtr->sectorsPerDisk;
}
}
spareQueues = &raidPtr->Queues[0][raidPtr->numCol];
ret = rf_ConfigureDiskQueue(raidPtr, &spareQueues[spare_number],
0, raidPtr->numCol + spare_number, raidPtr->qType,
raidPtr->sectorsPerDisk, raidPtr->Disks[0][raidPtr->numCol +
spare_number].dev, raidPtr->maxOutstanding,
&raidPtr->shutdownList, raidPtr->cleanupList);
raidPtr->numSpare++;
RF_UNLOCK_MUTEX(raidPtr->mutex);
return (0);
fail:
RF_UNLOCK_MUTEX(raidPtr->mutex);
return(ret);
}
/*****************************************************************************
*
* ConfigureLayout
*
* Read the configuration file and set up the RAID layout parameters.
* After reading common params, invokes the layout-specific configuration
* routine to finish the configuration.
*
*****************************************************************************/
int
rf_ConfigureLayout(RF_ShutdownList_t **listp, RF_Raid_t *raidPtr,
RF_Config_t *cfgPtr)
{
RF_RaidLayout_t *layoutPtr = &(raidPtr->Layout);
RF_ParityConfig_t parityConfig;
RF_LayoutSW_t *p;
int retval;
layoutPtr->sectorsPerStripeUnit = cfgPtr->sectPerSU;
layoutPtr->SUsPerPU = cfgPtr->SUsPerPU;
layoutPtr->SUsPerRU = cfgPtr->SUsPerRU;
parityConfig = cfgPtr->parityConfig;
if (layoutPtr->sectorsPerStripeUnit <= 0) {
RF_ERRORMSG2("raid%d: Invalid sectorsPerStripeUnit: %d.\n",
raidPtr->raidid, (int)layoutPtr->sectorsPerStripeUnit);
return (EINVAL);
}
layoutPtr->stripeUnitsPerDisk = raidPtr->sectorsPerDisk /
layoutPtr->sectorsPerStripeUnit;
p = rf_GetLayout(parityConfig);
if (p == NULL) {
RF_ERRORMSG1("Unknown parity configuration '%c'", parityConfig);
return (EINVAL);
}
RF_ASSERT(p->parityConfig == parityConfig);
layoutPtr->map = p;
/* Initialize the specific layout. */
retval = (p->Configure) (listp, raidPtr, cfgPtr);
if (retval)
return (retval);
layoutPtr->dataBytesPerStripe = layoutPtr->dataSectorsPerStripe <<
raidPtr->logBytesPerSector;
raidPtr->sectorsPerDisk = layoutPtr->stripeUnitsPerDisk *
layoutPtr->sectorsPerStripeUnit;
if (rf_forceNumFloatingReconBufs >= 0) {
raidPtr->numFloatingReconBufs = rf_forceNumFloatingReconBufs;
} else {
raidPtr->numFloatingReconBufs =
rf_GetDefaultNumFloatingReconBuffers(raidPtr);
}
if (rf_forceHeadSepLimit >= 0) {
raidPtr->headSepLimit = rf_forceHeadSepLimit;
} else {
raidPtr->headSepLimit = rf_GetDefaultHeadSepLimit(raidPtr);
}
#ifdef RAIDDEBUG
if (raidPtr->headSepLimit >= 0) {
printf("RAIDFRAME(%s): Using %ld floating recon bufs"
" with head sep limit %ld.\n", layoutPtr->map->configName,
(long) raidPtr->numFloatingReconBufs,
(long) raidPtr->headSepLimit);
} else {
printf("RAIDFRAME(%s): Using %ld floating recon bufs"
" with no head sep limit.\n", layoutPtr->map->configName,
(long) raidPtr->numFloatingReconBufs);
}
#endif /* RAIDDEBUG */
return (0);
}
