/* Invoked when the copyback has completed. */
void
rf_CopybackComplete(RF_CopybackDesc_t *desc, int status)
{
RF_Raid_t *raidPtr = desc->raidPtr;
struct timeval t, diff;
if (!status) {
RF_LOCK_MUTEX(raidPtr->mutex);
if (raidPtr->Layout.map->flags & RF_DISTRIBUTE_SPARE) {
RF_ASSERT(raidPtr->Layout.map->parityConfig == 'D');
rf_FreeSpareTable(raidPtr);
} else {
raidPtr->Disks[desc->spRow][desc->spCol].status =
rf_ds_spare;
}
RF_UNLOCK_MUTEX(raidPtr->mutex);
RF_GETTIME(t);
RF_TIMEVAL_DIFF(&desc->starttime, &t, &diff);
printf("Copyback time was %d.%06d seconds.\n",
(int) diff.tv_sec, (int) diff.tv_usec);
} else
printf("COPYBACK: Failure.\n");
RF_Free(desc->databuf, rf_RaidAddressToByte(raidPtr, desc->sectPerSU));
rf_FreeMCPair(desc->mcpair);
RF_Free(desc, sizeof(*desc));
rf_copyback_in_progress = 0;
rf_ResumeNewRequests(raidPtr);
}
void
rf_PrintReconSchedule(RF_ReconMap_t *mapPtr, struct timeval *starttime)
{
static int old_pctg = -1;
struct timeval tv, diff;
int new_pctg;
new_pctg = 100 - (rf_UnitsLeftToReconstruct(mapPtr) * 100 /
mapPtr->totalRUs);
if (new_pctg != old_pctg) {
RF_GETTIME(tv);
RF_TIMEVAL_DIFF(starttime, &tv, &diff);
printf("%d %d.%06d\n", (int) new_pctg, (int) diff.tv_sec,
(int) diff.tv_usec);
old_pctg = new_pctg;
}
}
/* Do a complete copyback. */
void
rf_CopybackReconstructedData(RF_Raid_t *raidPtr)
{
RF_ComponentLabel_t c_label;
int done, retcode;
RF_CopybackDesc_t *desc;
RF_RowCol_t frow, fcol;
RF_RaidDisk_t *badDisk;
char *databuf;
struct partinfo dpart;
struct vnode *vp;
struct vattr va;
struct proc *proc;
int ac;
done = 0;
fcol = 0;
for (frow = 0; frow < raidPtr->numRow; frow++) {
for (fcol = 0; fcol < raidPtr->numCol; fcol++) {
if (raidPtr->Disks[frow][fcol].status ==
rf_ds_dist_spared ||
raidPtr->Disks[frow][fcol].status ==
rf_ds_spared) {
done = 1;
break;
}
}
if (done)
break;
}
if (frow == raidPtr->numRow) {
printf("COPYBACK: No disks need copyback.\n");
return;
}
badDisk = &raidPtr->Disks[frow][fcol];
proc = raidPtr->engine_thread;
/*
* This device may have been opened successfully the first time.
* Close it before trying to open it again.
*/
if (raidPtr->raid_cinfo[frow][fcol].ci_vp != NULL) {
printf("Close the opened device: %s.\n",
raidPtr->Disks[frow][fcol].devname);
vp = raidPtr->raid_cinfo[frow][fcol].ci_vp;
ac = raidPtr->Disks[frow][fcol].auto_configured;
rf_close_component(raidPtr, vp, ac);
raidPtr->raid_cinfo[frow][fcol].ci_vp = NULL;
}
/* Note that this disk was *not* auto_configured (any longer). */
raidPtr->Disks[frow][fcol].auto_configured = 0;
printf("About to (re-)open the device: %s.\n",
raidPtr->Disks[frow][fcol].devname);
retcode = raidlookup(raidPtr->Disks[frow][fcol].devname, proc, &vp);
if (retcode) {
printf("COPYBACK: raidlookup on device: %s failed: %d !\n",
raidPtr->Disks[frow][fcol].devname, retcode);
/*
* XXX The component isn't responding properly... Must be
* still dead :-(
*/
return;
} else {
/*
* Ok, so we can at least do a lookup...
* How about actually getting a vp for it ?
*/
if ((retcode = VOP_GETATTR(vp, &va, proc->p_ucred, proc)) != 0)
{
return;
}
retcode = VOP_IOCTL(vp, DIOCGPART, (caddr_t) &dpart, FREAD,
proc->p_ucred, proc);
if (retcode) {
return;
}
raidPtr->Disks[frow][fcol].blockSize = dpart.disklab->d_secsize;
raidPtr->Disks[frow][fcol].numBlocks = dpart.part->p_size -
rf_protectedSectors;
raidPtr->raid_cinfo[frow][fcol].ci_vp = vp;
raidPtr->raid_cinfo[frow][fcol].ci_dev = va.va_rdev;
/* XXX Or the above ? */
raidPtr->Disks[frow][fcol].dev = va.va_rdev;
/*
* We allow the user to specify that only a fraction of the
* disks should be used this is just for debug: it speeds up
* the parity scan.
*/
raidPtr->Disks[frow][fcol].numBlocks =
raidPtr->Disks[frow][fcol].numBlocks *
rf_sizePercentage / 100;
}
#if 0
/* This is the way it was done before the CAM stuff was removed. */
if (rf_extract_ids(badDisk->devname, &bus, &targ, &lun)) {
printf("COPYBACK: unable to extract bus, target, lun from"
" devname %s.\n", badDisk->devname);
return;
}
/*
* TUR the disk that's marked as bad to be sure that it's actually
* alive.
*/
rf_SCSI_AllocTUR(&tur_op);
retcode = rf_SCSI_DoTUR(tur_op, bus, targ, lun, badDisk->dev);
rf_SCSI_FreeDiskOp(tur_op, 0);
#endif
if (retcode) {
printf("COPYBACK: target disk failed TUR.\n");
return;
}
/* Get a buffer to hold one SU. */
RF_Malloc(databuf, rf_RaidAddressToByte(raidPtr,
raidPtr->Layout.sectorsPerStripeUnit), (char *));
/* Create a descriptor. */
RF_Malloc(desc, sizeof(*desc), (RF_CopybackDesc_t *));
desc->raidPtr = raidPtr;
desc->status = 0;
desc->frow = frow;
desc->fcol = fcol;
desc->spRow = badDisk->spareRow;
desc->spCol = badDisk->spareCol;
desc->stripeAddr = 0;
desc->sectPerSU = raidPtr->Layout.sectorsPerStripeUnit;
desc->sectPerStripe = raidPtr->Layout.sectorsPerStripeUnit *
raidPtr->Layout.numDataCol;
desc->databuf = databuf;
desc->mcpair = rf_AllocMCPair();
printf("COPYBACK: Quiescing the array.\n");
/*
* Quiesce the array, since we don't want to code support for user
* accs here.
*/
rf_SuspendNewRequestsAndWait(raidPtr);
/* Adjust state of the array and of the disks. */
RF_LOCK_MUTEX(raidPtr->mutex);
raidPtr->Disks[desc->frow][desc->fcol].status = rf_ds_optimal;
raidPtr->status[desc->frow] = rf_rs_optimal;
rf_copyback_in_progress = 1; /* Debug only. */
RF_UNLOCK_MUTEX(raidPtr->mutex);
printf("COPYBACK: Beginning\n");
RF_GETTIME(desc->starttime);
rf_ContinueCopyback(desc);
/*
* Data has been restored.
* Fix up the component label.
* Don't actually need the read here.
*/
raidread_component_label(raidPtr->raid_cinfo[frow][fcol].ci_dev,
raidPtr->raid_cinfo[frow][fcol].ci_vp,
&c_label);
raid_init_component_label(raidPtr, &c_label);
c_label.row = frow;
c_label.column = fcol;
raidwrite_component_label(raidPtr->raid_cinfo[frow][fcol].ci_dev,
raidPtr->raid_cinfo[frow][fcol].ci_vp,
&c_label);
}
/*
* Invoked via callback after a copyback I/O has completed to
* continue on with the next one.
*/
void
rf_ContinueCopyback(RF_CopybackDesc_t *desc)
{
RF_SectorNum_t testOffs, stripeAddr;
RF_Raid_t *raidPtr = desc->raidPtr;
RF_RaidAddr_t addr;
RF_RowCol_t testRow, testCol;
int old_pctg, new_pctg, done;
struct timeval t, diff;
old_pctg = (-1);
while (1) {
stripeAddr = desc->stripeAddr;
desc->raidPtr->copyback_stripes_done = stripeAddr /
desc->sectPerStripe;
if (rf_prReconSched) {
old_pctg = 100 * desc->stripeAddr /
raidPtr->totalSectors;
}
desc->stripeAddr += desc->sectPerStripe;
if (rf_prReconSched) {
new_pctg = 100 * desc->stripeAddr /
raidPtr->totalSectors;
if (new_pctg != old_pctg) {
RF_GETTIME(t);
RF_TIMEVAL_DIFF(&desc->starttime, &t, &diff);
printf("%d %d.%06d\n", new_pctg,
(int) diff.tv_sec, (int) diff.tv_usec);
}
}
if (stripeAddr >= raidPtr->totalSectors) {
rf_CopybackComplete(desc, 0);
return;
}
/* Walk through the current stripe, su-by-su. */
for (done = 0, addr = stripeAddr;
addr < stripeAddr + desc->sectPerStripe;
addr += desc->sectPerSU) {
/* Map the SU, disallowing remap to spare space. */
(raidPtr->Layout.map->MapSector) (raidPtr, addr,
&testRow, &testCol, &testOffs, RF_DONT_REMAP);
if (testRow == desc->frow && testCol == desc->fcol) {
rf_CopybackOne(desc, RF_COPYBACK_DATA, addr,
testRow, testCol, testOffs);
done = 1;
break;
}
}
if (!done) {
/*
* We didn't find the failed disk in the data part,
* check parity.
*/
/*
* Map the parity for this stripe, disallowing remap
* to spare space.
*/
(raidPtr->Layout.map->MapParity) (raidPtr, stripeAddr,
&testRow, &testCol, &testOffs, RF_DONT_REMAP);
if (testRow == desc->frow && testCol == desc->fcol) {
rf_CopybackOne(desc, RF_COPYBACK_PARITY,
stripeAddr, testRow, testCol, testOffs);
}
}
/* Check to see if the last read/write pair failed. */
if (desc->status) {
rf_CopybackComplete(desc, 1);
return;
}
/*
* We didn't find any units to copy back in this stripe.
* Continue with the next one.
*/
}
}