24 static u32 nsblk_meta_size(struct nd_namespace_blk *nsblk)  in nsblk_meta_size()  argument
26 	return nsblk->lbasize - ((nsblk->lbasize >= 4096) ? 4096 : 512);  in nsblk_meta_size()
29 static u32 nsblk_internal_lbasize(struct nd_namespace_blk *nsblk)  in nsblk_internal_lbasize()  argument
31 	return roundup(nsblk->lbasize, INT_LBASIZE_ALIGNMENT);  in nsblk_internal_lbasize()
34 static u32 nsblk_sector_size(struct nd_namespace_blk *nsblk)  in nsblk_sector_size()  argument
36 	return nsblk->lbasize - nsblk_meta_size(nsblk);  in nsblk_sector_size()
39 static resource_size_t to_dev_offset(struct nd_namespace_blk *nsblk,  in to_dev_offset()  argument
44 	for (i = 0; i < nsblk->num_resources; i++) {  in to_dev_offset()
45 		if (ns_offset < resource_size(nsblk->res[i])) {  in to_dev_offset()
46 			if (ns_offset + len > resource_size(nsblk->res[i])) {  in to_dev_offset()
47 				dev_WARN_ONCE(&nsblk->common.dev, 1,  in to_dev_offset()
51 			return nsblk->res[i]->start + ns_offset;  in to_dev_offset()
53 		ns_offset -= resource_size(nsblk->res[i]);  in to_dev_offset()
56 	dev_WARN_ONCE(&nsblk->common.dev, 1, "request out of range\n");  in to_dev_offset()
60 static struct nd_blk_region *to_ndbr(struct nd_namespace_blk *nsblk)  in to_ndbr()  argument
65 	parent = nsblk->common.dev.parent;  in to_ndbr()
71 static int nd_blk_rw_integrity(struct nd_namespace_blk *nsblk,  in nd_blk_rw_integrity()  argument
74 	struct nd_blk_region *ndbr = to_ndbr(nsblk);  in nd_blk_rw_integrity()
75 	unsigned int len = nsblk_meta_size(nsblk);  in nd_blk_rw_integrity()
80 	internal_lbasize = nsblk_internal_lbasize(nsblk);  in nd_blk_rw_integrity()
81 	sector_size = nsblk_sector_size(nsblk);  in nd_blk_rw_integrity()
83 	dev_offset = to_dev_offset(nsblk, ns_offset, len);  in nd_blk_rw_integrity()
117 static int nd_blk_rw_integrity(struct nd_namespace_blk *nsblk,  in nd_blk_rw_integrity()  argument
124 static int nsblk_do_bvec(struct nd_namespace_blk *nsblk,  in nsblk_do_bvec()  argument
128 	struct nd_blk_region *ndbr = to_ndbr(nsblk);  in nsblk_do_bvec()
135 	internal_lbasize = nsblk_internal_lbasize(nsblk);  in nsblk_do_bvec()
136 	sector_size = nsblk_sector_size(nsblk);  in nsblk_do_bvec()
150 		dev_offset = to_dev_offset(nsblk, ns_offset, cur_len);  in nsblk_do_bvec()
161 			err = nd_blk_rw_integrity(nsblk, bip, lba, rw);  in nsblk_do_bvec()
176 	struct nd_namespace_blk *nsblk;  in nd_blk_make_request()  local
187 	nsblk = q->queuedata;  in nd_blk_make_request()
194 		err = nsblk_do_bvec(nsblk, bip, bvec.bv_page, len,  in nd_blk_make_request()
197 			dev_dbg(&nsblk->common.dev,  in nd_blk_make_request()
216 	struct nd_namespace_blk *nsblk = to_nd_namespace_blk(&ndns->dev);  in nsblk_rw_bytes()  local
217 	struct nd_blk_region *ndbr = to_ndbr(nsblk);  in nsblk_rw_bytes()
220 	dev_offset = to_dev_offset(nsblk, offset, n);  in nsblk_rw_bytes()
222 	if (unlikely(offset + n > nsblk->size)) {  in nsblk_rw_bytes()
249 static int nsblk_attach_disk(struct nd_namespace_blk *nsblk)  in nsblk_attach_disk()  argument
251 	struct device *dev = &nsblk->common.dev;  in nsblk_attach_disk()
257 	internal_nlba = div_u64(nsblk->size, nsblk_internal_lbasize(nsblk));  in nsblk_attach_disk()
258 	available_disk_size = internal_nlba * nsblk_sector_size(nsblk);  in nsblk_attach_disk()
268 	blk_queue_logical_block_size(q, nsblk_sector_size(nsblk));  in nsblk_attach_disk()
270 	q->queuedata = nsblk;  in nsblk_attach_disk()
280 	nvdimm_namespace_disk_name(&nsblk->common, disk->disk_name);  in nsblk_attach_disk()
285 	if (nsblk_meta_size(nsblk)) {  in nsblk_attach_disk()
286 		int rc = nd_integrity_init(disk, nsblk_meta_size(nsblk));  in nsblk_attach_disk()
301 	struct nd_namespace_blk *nsblk;  in nd_blk_probe()  local
307 	nsblk = to_nd_namespace_blk(&ndns->dev);  in nd_blk_probe()
308 	nsblk->size = nvdimm_namespace_capacity(ndns);  in nd_blk_probe()
309 	dev_set_drvdata(dev, nsblk);  in nd_blk_probe()
318 		return nsblk_attach_disk(nsblk);  in nd_blk_probe()