16 static u32 nsblk_meta_size(struct nd_namespace_blk *nsblk)  in nsblk_meta_size()  argument
18 	return nsblk->lbasize - ((nsblk->lbasize >= 4096) ? 4096 : 512);  in nsblk_meta_size()
21 static u32 nsblk_internal_lbasize(struct nd_namespace_blk *nsblk)  in nsblk_internal_lbasize()  argument
23 	return roundup(nsblk->lbasize, INT_LBASIZE_ALIGNMENT);  in nsblk_internal_lbasize()
26 static u32 nsblk_sector_size(struct nd_namespace_blk *nsblk)  in nsblk_sector_size()  argument
28 	return nsblk->lbasize - nsblk_meta_size(nsblk);  in nsblk_sector_size()
31 static resource_size_t to_dev_offset(struct nd_namespace_blk *nsblk,  in to_dev_offset()  argument
36 	for (i = 0; i < nsblk->num_resources; i++) {  in to_dev_offset()
37 		if (ns_offset < resource_size(nsblk->res[i])) {  in to_dev_offset()
38 			if (ns_offset + len > resource_size(nsblk->res[i])) {  in to_dev_offset()
39 				dev_WARN_ONCE(&nsblk->common.dev, 1,  in to_dev_offset()
43 			return nsblk->res[i]->start + ns_offset;  in to_dev_offset()
45 		ns_offset -= resource_size(nsblk->res[i]);  in to_dev_offset()
48 	dev_WARN_ONCE(&nsblk->common.dev, 1, "request out of range\n");  in to_dev_offset()
52 static struct nd_blk_region *to_ndbr(struct nd_namespace_blk *nsblk)  in to_ndbr()  argument
57 	parent = nsblk->common.dev.parent;  in to_ndbr()
63 static int nd_blk_rw_integrity(struct nd_namespace_blk *nsblk,  in nd_blk_rw_integrity()  argument
66 	struct nd_blk_region *ndbr = to_ndbr(nsblk);  in nd_blk_rw_integrity()
67 	unsigned int len = nsblk_meta_size(nsblk);  in nd_blk_rw_integrity()
72 	internal_lbasize = nsblk_internal_lbasize(nsblk);  in nd_blk_rw_integrity()
73 	sector_size = nsblk_sector_size(nsblk);  in nd_blk_rw_integrity()
75 	dev_offset = to_dev_offset(nsblk, ns_offset, len);  in nd_blk_rw_integrity()
109 static int nd_blk_rw_integrity(struct nd_namespace_blk *nsblk,  in nd_blk_rw_integrity()  argument
116 static int nsblk_do_bvec(struct nd_namespace_blk *nsblk,  in nsblk_do_bvec()  argument
120 	struct nd_blk_region *ndbr = to_ndbr(nsblk);  in nsblk_do_bvec()
127 	internal_lbasize = nsblk_internal_lbasize(nsblk);  in nsblk_do_bvec()
128 	sector_size = nsblk_sector_size(nsblk);  in nsblk_do_bvec()
142 		dev_offset = to_dev_offset(nsblk, ns_offset, cur_len);  in nsblk_do_bvec()
153 			err = nd_blk_rw_integrity(nsblk, bip, lba, rw);  in nsblk_do_bvec()
168 	struct nd_namespace_blk *nsblk;  in nd_blk_make_request()  local
179 	nsblk = q->queuedata;  in nd_blk_make_request()
186 		err = nsblk_do_bvec(nsblk, bip, bvec.bv_page, len,  in nd_blk_make_request()
189 			dev_dbg(&nsblk->common.dev,  in nd_blk_make_request()
208 	struct nd_namespace_blk *nsblk = to_nd_namespace_blk(&ndns->dev);  in nsblk_rw_bytes()  local
209 	struct nd_blk_region *ndbr = to_ndbr(nsblk);  in nsblk_rw_bytes()
212 	dev_offset = to_dev_offset(nsblk, offset, n);  in nsblk_rw_bytes()
214 	if (unlikely(offset + n > nsblk->size)) {  in nsblk_rw_bytes()
241 static int nsblk_attach_disk(struct nd_namespace_blk *nsblk)  in nsblk_attach_disk()  argument
243 	struct device *dev = &nsblk->common.dev;  in nsblk_attach_disk()
249 	internal_nlba = div_u64(nsblk->size, nsblk_internal_lbasize(nsblk));  in nsblk_attach_disk()
250 	available_disk_size = internal_nlba * nsblk_sector_size(nsblk);  in nsblk_attach_disk()
260 	blk_queue_logical_block_size(q, nsblk_sector_size(nsblk));  in nsblk_attach_disk()
262 	q->queuedata = nsblk;  in nsblk_attach_disk()
272 	nvdimm_namespace_disk_name(&nsblk->common, disk->disk_name);  in nsblk_attach_disk()
277 	if (nsblk_meta_size(nsblk)) {  in nsblk_attach_disk()
278 		int rc = nd_integrity_init(disk, nsblk_meta_size(nsblk));  in nsblk_attach_disk()
293 	struct nd_namespace_blk *nsblk;  in nd_blk_probe()  local
299 	nsblk = to_nd_namespace_blk(&ndns->dev);  in nd_blk_probe()
300 	nsblk->size = nvdimm_namespace_capacity(ndns);  in nd_blk_probe()
301 	dev_set_drvdata(dev, nsblk);  in nd_blk_probe()
310 		return nsblk_attach_disk(nsblk);  in nd_blk_probe()