static int sysblk_get_host_blks(struct nvm_dev *dev, struct ppa_addr ppa,
u8 *blks, int nr_blks,
struct sysblk_scan *s)
{
int i, nr_sysblk = 0;
nr_blks = nvm_bb_tbl_fold(dev, blks, nr_blks);
if (nr_blks < 0)
return nr_blks;
for (i = 0; i < nr_blks; i++) {
if (blks[i] != NVM_BLK_T_HOST)
continue;
if (s->nr_ppas == MAX_BLKS_PR_SYSBLK * MAX_SYSBLKS) {
pr_err("nvm: too many host blks\n");
return -EINVAL;
}
ppa.g.blk = i;
s->ppas[scan_ppa_idx(s->row, nr_sysblk)] = ppa;
s->nr_ppas++;
nr_sysblk++;
}
return 0;
}
static int sysblk_get_free_blks(struct nvm_dev *dev, struct ppa_addr ppa,
u8 *blks, int nr_blks,
struct sysblk_scan *s)
{
struct ppa_addr *sppa;
int i, blkid = 0;
nr_blks = nvm_bb_tbl_fold(dev, blks, nr_blks);
if (nr_blks < 0)
return nr_blks;
for (i = 0; i < nr_blks; i++) {
if (blks[i] == NVM_BLK_T_HOST)
return -EEXIST;
if (blks[i] != NVM_BLK_T_FREE)
continue;
sppa = &s->ppas[scan_ppa_idx(s->row, blkid)];
sppa->g.ch = ppa.g.ch;
sppa->g.lun = ppa.g.lun;
sppa->g.blk = i;
s->nr_ppas++;
blkid++;
pr_debug("nvm: use (%u %u %u) as sysblk\n",
sppa->g.ch, sppa->g.lun, sppa->g.blk);
if (blkid > MAX_BLKS_PR_SYSBLK - 1)
return 0;
}
pr_err("nvm: sysblk failed get sysblk\n");
return -EINVAL;
}
static int pblk_bb_discovery(struct nvm_tgt_dev *dev, struct pblk_lun *rlun)
{
struct nvm_geo *geo = &dev->geo;
struct ppa_addr ppa;
u8 *blks;
int nr_blks, ret;
nr_blks = geo->blks_per_lun * geo->plane_mode;
blks = kmalloc(nr_blks, GFP_KERNEL);
if (!blks)
return -ENOMEM;
ppa.ppa = 0;
ppa.g.ch = rlun->bppa.g.ch;
ppa.g.lun = rlun->bppa.g.lun;
ret = nvm_get_tgt_bb_tbl(dev, ppa, blks);
if (ret)
goto out;
nr_blks = nvm_bb_tbl_fold(dev->parent, blks, nr_blks);
if (nr_blks < 0) {
ret = nr_blks;
goto out;
}
rlun->bb_list = blks;
return 0;
out:
kfree(blks);
return ret;
}