/****************************************************************************
* 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);
}
/****************************************************************************************
* 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);
}
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);
}
