C++ (Cpp) nvm_bb_tbl_fold Examples

Example #1

File: sysblk.c Project: 513855417/linux

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;
}

Example #2

File: sysblk.c Project: 513855417/linux

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;
}

Example #3

File: pblk-init.c Project: mdamt/linux

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;
}