36 static u32 nd_blk_meta_size(struct nd_blk_device *blk_dev)  in nd_blk_meta_size()  argument
38 	return blk_dev->nsblk->lbasize - blk_dev->sector_size;  in nd_blk_meta_size()
63 static int nd_blk_rw_integrity(struct nd_blk_device *blk_dev,  in nd_blk_rw_integrity()  argument
67 	unsigned int len = nd_blk_meta_size(blk_dev);  in nd_blk_rw_integrity()
73 	nsblk = blk_dev->nsblk;  in nd_blk_rw_integrity()
74 	ndbr = blk_dev->ndbr;  in nd_blk_rw_integrity()
75 	ns_offset = lba * blk_dev->internal_lbasize + blk_dev->sector_size;  in nd_blk_rw_integrity()
109 static int nd_blk_rw_integrity(struct nd_blk_device *blk_dev,  in nd_blk_rw_integrity()  argument
117 static int nd_blk_do_bvec(struct nd_blk_device *blk_dev,  in nd_blk_do_bvec()  argument
122 	struct nd_blk_region *ndbr = blk_dev->ndbr;  in nd_blk_do_bvec()
137 		cur_len = bip ? min(len, blk_dev->sector_size) : len;  in nd_blk_do_bvec()
139 		lba = div_u64(sector << SECTOR_SHIFT, blk_dev->sector_size);  in nd_blk_do_bvec()
140 		ns_offset = lba * blk_dev->internal_lbasize;  in nd_blk_do_bvec()
141 		dev_offset = to_dev_offset(blk_dev->nsblk, ns_offset, cur_len);  in nd_blk_do_bvec()
152 			err = nd_blk_rw_integrity(blk_dev, bip, lba, rw);  in nd_blk_do_bvec()
158 		sector += blk_dev->sector_size >> SECTOR_SHIFT;  in nd_blk_do_bvec()
169 	struct nd_blk_device *blk_dev;  in nd_blk_make_request()  local
188 	blk_dev = disk->private_data;  in nd_blk_make_request()
195 		err = nd_blk_do_bvec(blk_dev, bip, bvec.bv_page, len,  in nd_blk_make_request()
198 			dev_info(&blk_dev->nsblk->common.dev,  in nd_blk_make_request()
217 	struct nd_blk_device *blk_dev = dev_get_drvdata(ndns->claim);  in nd_blk_rw_bytes()  local
218 	struct nd_namespace_blk *nsblk = blk_dev->nsblk;  in nd_blk_rw_bytes()
219 	struct nd_blk_region *ndbr = blk_dev->ndbr;  in nd_blk_rw_bytes()
224 	if (unlikely(offset + n > blk_dev->disk_size)) {  in nd_blk_rw_bytes()
241 		struct nd_blk_device *blk_dev)  in nd_blk_attach_disk()  argument
247 	internal_nlba = div_u64(blk_dev->disk_size, blk_dev->internal_lbasize);  in nd_blk_attach_disk()
248 	available_disk_size = internal_nlba * blk_dev->sector_size;  in nd_blk_attach_disk()
250 	blk_dev->queue = blk_alloc_queue(GFP_KERNEL);  in nd_blk_attach_disk()
251 	if (!blk_dev->queue)  in nd_blk_attach_disk()
254 	blk_queue_make_request(blk_dev->queue, nd_blk_make_request);  in nd_blk_attach_disk()
255 	blk_queue_max_hw_sectors(blk_dev->queue, UINT_MAX);  in nd_blk_attach_disk()
256 	blk_queue_bounce_limit(blk_dev->queue, BLK_BOUNCE_ANY);  in nd_blk_attach_disk()
257 	blk_queue_logical_block_size(blk_dev->queue, blk_dev->sector_size);  in nd_blk_attach_disk()
258 	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, blk_dev->queue);  in nd_blk_attach_disk()
260 	disk = blk_dev->disk = alloc_disk(0);  in nd_blk_attach_disk()
262 		blk_cleanup_queue(blk_dev->queue);  in nd_blk_attach_disk()
270 	disk->private_data	= blk_dev;  in nd_blk_attach_disk()
271 	disk->queue		= blk_dev->queue;  in nd_blk_attach_disk()
277 	if (nd_blk_meta_size(blk_dev)) {  in nd_blk_attach_disk()
278 		int rc = nd_integrity_init(disk, nd_blk_meta_size(blk_dev));  in nd_blk_attach_disk()
283 			blk_cleanup_queue(blk_dev->queue);  in nd_blk_attach_disk()
297 	struct nd_blk_device *blk_dev;  in nd_blk_probe()  local
304 	blk_dev = kzalloc(sizeof(*blk_dev), GFP_KERNEL);  in nd_blk_probe()
305 	if (!blk_dev)  in nd_blk_probe()
309 	blk_dev->disk_size = nvdimm_namespace_capacity(ndns);  in nd_blk_probe()
310 	blk_dev->ndbr = to_nd_blk_region(dev->parent);  in nd_blk_probe()
311 	blk_dev->nsblk = to_nd_namespace_blk(&ndns->dev);  in nd_blk_probe()
312 	blk_dev->internal_lbasize = roundup(nsblk->lbasize,  in nd_blk_probe()
314 	blk_dev->sector_size = ((nsblk->lbasize >= 4096) ? 4096 : 512);  in nd_blk_probe()
315 	dev_set_drvdata(dev, blk_dev);  in nd_blk_probe()
320 	else if (nd_btt_probe(ndns, blk_dev) == 0) {  in nd_blk_probe()
324 		rc = nd_blk_attach_disk(ndns, blk_dev);  in nd_blk_probe()
326 		kfree(blk_dev);  in nd_blk_probe()
330 static void nd_blk_detach_disk(struct nd_blk_device *blk_dev)  in nd_blk_detach_disk()  argument
332 	del_gendisk(blk_dev->disk);  in nd_blk_detach_disk()
333 	put_disk(blk_dev->disk);  in nd_blk_detach_disk()
334 	blk_cleanup_queue(blk_dev->queue);  in nd_blk_detach_disk()
339 	struct nd_blk_device *blk_dev = dev_get_drvdata(dev);  in nd_blk_remove()  local
344 		nd_blk_detach_disk(blk_dev);  in nd_blk_remove()
345 	kfree(blk_dev);  in nd_blk_remove()