diff --git a/drivers/nvme/host/Makefile b/drivers/nvme/host/Makefile
index cfb6679..219dc206 100644
--- a/drivers/nvme/host/Makefile
+++ b/drivers/nvme/host/Makefile
@@ -1,4 +1,4 @@
 
 obj-$(CONFIG_BLK_DEV_NVME)     += nvme.o
 
-nvme-y		+= pci.o scsi.o
+nvme-y		+= pci.o scsi.o lightnvm.o
diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
new file mode 100644
index 0000000..2d6f798
--- /dev/null
+++ b/drivers/nvme/host/lightnvm.c
@@ -0,0 +1,597 @@
+/*
+ * nvme-lightnvm.c - LightNVM NVMe device
+ *
+ * Copyright (C) 2014-2015 IT University of Copenhagen
+ * Initial release: Matias Bjorling <mb@lightnvm.io>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
+ * USA.
+ *
+ */
+
+#include "nvme.h"
+
+#ifdef CONFIG_NVM
+
+#include <linux/nvme.h>
+#include <linux/bitops.h>
+#include <linux/lightnvm.h>
+#include <linux/vmalloc.h>
+
+enum nvme_nvm_opcode {
+	nvme_nvm_cmd_hb_write	= 0x81,
+	nvme_nvm_cmd_hb_read	= 0x02,
+	nvme_nvm_cmd_ph_write	= 0x91,
+	nvme_nvm_cmd_ph_read	= 0x92,
+	nvme_nvm_cmd_erase	= 0x90,
+};
+
+enum nvme_nvm_admin_opcode {
+	nvme_nvm_admin_identify		= 0xe2,
+	nvme_nvm_admin_get_features	= 0xe6,
+	nvme_nvm_admin_set_resp		= 0xe5,
+	nvme_nvm_admin_get_l2p_tbl	= 0xea,
+	nvme_nvm_admin_get_bb_tbl	= 0xf2,
+	nvme_nvm_admin_set_bb_tbl	= 0xf1,
+};
+
+struct nvme_nvm_hb_rw {
+	__u8			opcode;
+	__u8			flags;
+	__u16			command_id;
+	__le32			nsid;
+	__u64			rsvd2;
+	__le64			metadata;
+	__le64			prp1;
+	__le64			prp2;
+	__le64			spba;
+	__le16			length;
+	__le16			control;
+	__le32			dsmgmt;
+	__le64			slba;
+};
+
+struct nvme_nvm_ph_rw {
+	__u8			opcode;
+	__u8			flags;
+	__u16			command_id;
+	__le32			nsid;
+	__u64			rsvd2;
+	__le64			metadata;
+	__le64			prp1;
+	__le64			prp2;
+	__le64			spba;
+	__le16			length;
+	__le16			control;
+	__le32			dsmgmt;
+	__le64			resv;
+};
+
+struct nvme_nvm_identify {
+	__u8			opcode;
+	__u8			flags;
+	__u16			command_id;
+	__le32			nsid;
+	__u64			rsvd[2];
+	__le64			prp1;
+	__le64			prp2;
+	__le32			chnl_off;
+	__u32			rsvd11[5];
+};
+
+struct nvme_nvm_l2ptbl {
+	__u8			opcode;
+	__u8			flags;
+	__u16			command_id;
+	__le32			nsid;
+	__le32			cdw2[4];
+	__le64			prp1;
+	__le64			prp2;
+	__le64			slba;
+	__le32			nlb;
+	__le16			cdw14[6];
+};
+
+struct nvme_nvm_bbtbl {
+	__u8			opcode;
+	__u8			flags;
+	__u16			command_id;
+	__le32			nsid;
+	__u64			rsvd[2];
+	__le64			prp1;
+	__le64			prp2;
+	__le32			prp1_len;
+	__le32			prp2_len;
+	__le32			lbb;
+	__u32			rsvd11[3];
+};
+
+struct nvme_nvm_set_resp {
+	__u8			opcode;
+	__u8			flags;
+	__u16			command_id;
+	__le32			nsid;
+	__u64			rsvd[2];
+	__le64			prp1;
+	__le64			prp2;
+	__le64			resp;
+	__u32			rsvd11[4];
+};
+
+struct nvme_nvm_erase_blk {
+	__u8			opcode;
+	__u8			flags;
+	__u16			command_id;
+	__le32			nsid;
+	__u64			rsvd[2];
+	__le64			prp1;
+	__le64			prp2;
+	__le64			spba;
+	__le16			length;
+	__le16			control;
+	__le32			dsmgmt;
+	__le64			resv;
+};
+
+struct nvme_nvm_command {
+	union {
+		struct nvme_common_command common;
+		struct nvme_nvm_identify identify;
+		struct nvme_nvm_hb_rw hb_rw;
+		struct nvme_nvm_ph_rw ph_rw;
+		struct nvme_nvm_l2ptbl l2p;
+		struct nvme_nvm_bbtbl get_bb;
+		struct nvme_nvm_bbtbl set_bb;
+		struct nvme_nvm_set_resp resp;
+		struct nvme_nvm_erase_blk erase;
+	};
+};
+
+/*
+ * Check we didin't inadvertently grow the command struct
+ */
+static inline void _nvme_nvm_check_size(void)
+{
+	BUILD_BUG_ON(sizeof(struct nvme_nvm_identify) != 64);
+	BUILD_BUG_ON(sizeof(struct nvme_nvm_hb_rw) != 64);
+	BUILD_BUG_ON(sizeof(struct nvme_nvm_ph_rw) != 64);
+	BUILD_BUG_ON(sizeof(struct nvme_nvm_l2ptbl) != 64);
+	BUILD_BUG_ON(sizeof(struct nvme_nvm_bbtbl) != 64);
+	BUILD_BUG_ON(sizeof(struct nvme_nvm_set_resp) != 64);
+	BUILD_BUG_ON(sizeof(struct nvme_nvm_erase_blk) != 64);
+}
+
+struct nvme_nvm_id_group {
+	__le64			laddr_begin;
+	__le32			queue_size;
+	__le32			channels;
+	__le32			luns_per_chnl;
+	__le32			sec_per_pg;
+	__le32			pgs_per_blk;
+	__le32			blks;
+	__le32			planes;
+	__le32			sec_size;
+	__le32			oob_size;
+	__le32			t_r;
+	__le32			t_sqr;
+	__le32			t_w;
+	__le32			t_sqw;
+	__le32			t_e;
+	__le16			chnl_parallelism;
+	__u8			plane_mode;
+	__u8			addr_mode;
+	__u8			reserved[124];
+} __packed;
+
+struct nvme_nvm_id {
+	__le16			ver_id;
+	__le16			ngroups;
+	__le16			nvm_vendor;
+	__u8			reserved[250];
+	struct nvme_nvm_id_group groups[20];
+} __packed;
+
+
+
+static int init_chnls(struct nvm_id *nvm_id, struct nvme_nvm_id *nvme_nvm_id)
+{
+	struct nvme_nvm_id_group *src;
+	struct nvm_id_group *dst;
+	int i, end;
+
+	end = min_t(u32, 20, nvm_id->ngroups);
+
+	for (i = 0; i < end; i++) {
+		src = &nvme_nvm_id->groups[i];
+		dst = &nvm_id->groups[i];
+
+		dst->laddr_begin = le64_to_cpu(src->laddr_begin);
+		dst->queue_size = le32_to_cpu(src->queue_size);
+		dst->channels = le32_to_cpu(src->channels);
+		dst->luns_per_chnl = le32_to_cpu(src->luns_per_chnl);
+		dst->sec_per_pg = le32_to_cpu(src->sec_per_pg);
+		dst->pgs_per_blk = le32_to_cpu(src->pgs_per_blk);
+		dst->blks = le32_to_cpu(src->blks);
+		dst->planes = le32_to_cpu(src->planes);
+		dst->sec_size = le32_to_cpu(src->sec_size);
+		dst->oob_size = le32_to_cpu(src->oob_size);
+		dst->t_r = le32_to_cpu(src->t_r);
+		dst->t_sqr = le32_to_cpu(src->t_sqr);
+		dst->t_w = le32_to_cpu(src->t_w);
+		dst->t_sqw = le32_to_cpu(src->t_sqw);
+		dst->t_e = le32_to_cpu(src->t_e);
+		dst->plane_mode = src->plane_mode;
+		dst->addr_mode = src->addr_mode;
+	}
+
+	return 0;
+}
+
+static int nvme_nvm_identify(struct request_queue *q, struct nvm_id *nvm_id)
+{
+	struct nvme_ns *ns = q->queuedata;
+	struct nvme_nvm_id *nvme_nvm_id;
+	struct nvme_nvm_command c = {};
+	int ret;
+
+	c.identify.opcode = nvme_nvm_admin_identify;
+	c.identify.nsid = cpu_to_le32(ns->ns_id);
+	c.identify.chnl_off = 0;
+	nvme_nvm_id = kmalloc(sizeof(struct nvme_nvm_id), GFP_KERNEL);
+	if (!nvme_nvm_id)
+		return -ENOMEM;
+
+	ret = nvme_submit_sync_cmd(q, (struct nvme_command *)&c, nvme_nvm_id,
+						sizeof(struct nvme_nvm_id));
+	if (ret) {
+		ret = -EIO;
+		goto out;
+	}
+
+	nvm_id->ver_id = le16_to_cpu(nvme_nvm_id->ver_id);
+	nvm_id->nvm_vendor = le16_to_cpu(nvme_nvm_id->nvm_vendor);
+	nvm_id->ngroups = le16_to_cpu(nvme_nvm_id->ngroups);
+
+	ret = init_chnls(nvm_id, nvme_nvm_id);
+out:
+	kfree(nvme_nvm_id);
+	return ret;
+}
+
+static int nvme_nvm_get_features(struct request_queue *q,
+						struct nvm_get_features *gf)
+{
+	struct nvme_ns *ns = q->queuedata;
+	struct nvme_nvm_command c = {};
+	int sz = sizeof(struct nvm_get_features);
+	int ret;
+	u64 *resp;
+
+	c.common.opcode = nvme_nvm_admin_get_features;
+	c.common.nsid = ns->ns_id;
+	resp = kmalloc(sz, GFP_KERNEL);
+	if (!resp)
+		return -ENOMEM;
+
+	ret = nvme_submit_sync_cmd(q, (struct nvme_command *)&c, resp, sz);
+	if (ret)
+		goto done;
+
+	gf->rsp = le64_to_cpu(resp[0]);
+	gf->ext = le64_to_cpu(resp[1]);
+
+done:
+	kfree(resp);
+	return ret;
+}
+
+static int nvme_nvm_set_resp(struct request_queue *q, u64 resp)
+{
+	struct nvme_ns *ns = q->queuedata;
+	struct nvme_nvm_command c = {};
+
+	c.resp.opcode = nvme_nvm_admin_set_resp;
+	c.resp.nsid = cpu_to_le32(ns->ns_id);
+	c.resp.resp = cpu_to_le64(resp);
+	return nvme_submit_sync_cmd(q, (struct nvme_command *)&c, NULL, 0);
+}
+
+static int nvme_nvm_get_l2p_tbl(struct request_queue *q, u64 slba, u64 nlb,
+				nvm_l2p_update_fn *update_l2p, void *priv)
+{
+	struct nvme_ns *ns = q->queuedata;
+	struct nvme_dev *dev = ns->dev;
+	struct nvme_nvm_command c = {};
+	u32 len = queue_max_hw_sectors(q) << 9;
+	u64 nlb_pr_rq = len / sizeof(u64);
+	u64 cmd_slba = slba;
+	void *entries;
+	int ret = 0;
+
+	c.l2p.opcode = nvme_nvm_admin_get_l2p_tbl;
+	c.l2p.nsid = cpu_to_le32(ns->ns_id);
+	entries = kmalloc(len, GFP_KERNEL);
+	if (!entries)
+		return -ENOMEM;
+
+	while (nlb) {
+		u64 cmd_nlb = min_t(u64, nlb_pr_rq, nlb);
+
+		c.l2p.slba = cmd_slba;
+		c.l2p.nlb = cmd_nlb;
+
+		ret = nvme_submit_sync_cmd(q, (struct nvme_command *)&c,
+								entries, len);
+		if (ret) {
+			dev_err(dev->dev, "L2P table transfer failed (%d)\n",
+									ret);
+			ret = -EIO;
+			goto out;
+		}
+
+		if (update_l2p(cmd_slba, cmd_nlb, entries, priv)) {
+			ret = -EINTR;
+			goto out;
+		}
+
+		cmd_slba += cmd_nlb;
+		nlb -= cmd_nlb;
+	}
+
+out:
+	kfree(entries);
+	return ret;
+}
+
+static int nvme_nvm_get_bb_tbl(struct request_queue *q, int lunid,
+				unsigned int nr_blocks,
+				nvm_bb_update_fn *update_bbtbl, void *priv)
+{
+	struct nvme_ns *ns = q->queuedata;
+	struct nvme_dev *dev = ns->dev;
+	struct nvme_nvm_command c = {};
+	void *bb_bitmap;
+	u16 bb_bitmap_size;
+	int ret = 0;
+
+	c.get_bb.opcode = nvme_nvm_admin_get_bb_tbl;
+	c.get_bb.nsid = cpu_to_le32(ns->ns_id);
+	c.get_bb.lbb = cpu_to_le32(lunid);
+	bb_bitmap_size = ((nr_blocks >> 15) + 1) * PAGE_SIZE;
+	bb_bitmap = kmalloc(bb_bitmap_size, GFP_KERNEL);
+	if (!bb_bitmap)
+		return -ENOMEM;
+
+	bitmap_zero(bb_bitmap, nr_blocks);
+
+	ret = nvme_submit_sync_cmd(q, (struct nvme_command *)&c, bb_bitmap,
+								bb_bitmap_size);
+	if (ret) {
+		dev_err(dev->dev, "get bad block table failed (%d)\n", ret);
+		ret = -EIO;
+		goto out;
+	}
+
+	ret = update_bbtbl(lunid, bb_bitmap, nr_blocks, priv);
+	if (ret) {
+		ret = -EINTR;
+		goto out;
+	}
+
+out:
+	kfree(bb_bitmap);
+	return ret;
+}
+
+static inline void nvme_nvm_cmd_hybrid(struct nvm_rq *rqd, struct nvme_ns *ns,
+						struct nvme_nvm_command *c)
+{
+	c->hb_rw.opcode = (rqd->opcode & 1) ?
+				nvme_nvm_cmd_hb_write : nvme_nvm_cmd_hb_read;
+	c->hb_rw.nsid = cpu_to_le32(ns->ns_id);
+	if (rqd->nr_pages == 1)
+		c->hb_rw.spba = cpu_to_le64(rqd->ppa_addr.ppa);
+	else
+		c->hb_rw.spba = cpu_to_le64(rqd->dma_ppa_list);
+	c->hb_rw.length = cpu_to_le16(rqd->nr_pages - 1);
+	c->hb_rw.slba = cpu_to_le64(nvme_block_nr(ns,
+						rqd->bio->bi_iter.bi_sector));
+}
+
+static inline void nvme_nvm_cmd_phys(struct nvm_rq *rqd, struct nvme_ns *ns,
+						struct nvme_nvm_command *c)
+{
+	c->ph_rw.opcode = (rqd->opcode & 1) ?
+				nvme_nvm_cmd_ph_write : nvme_nvm_cmd_ph_read;
+	c->ph_rw.nsid = cpu_to_le32(ns->ns_id);
+	if (rqd->nr_pages == 1)
+		c->ph_rw.spba = cpu_to_le64(rqd->ppa_addr.ppa);
+	else
+		c->ph_rw.spba = cpu_to_le64(rqd->dma_ppa_list);
+	c->ph_rw.length = cpu_to_le16(rqd->nr_pages - 1);
+	c->ph_rw.control = cpu_to_le16(0x2); /*quad access*/
+}
+
+static inline void nvme_nvm_rqtocmd(struct request *rq, struct nvm_rq *rqd,
+				struct nvme_ns *ns, struct nvme_nvm_command *c)
+{
+	switch (rqd->opcode) {
+	case NVM_OP_HBWRITE:
+	case NVM_OP_HBREAD:
+		nvme_nvm_cmd_hybrid(rqd, ns, c);
+		break;
+	case NVM_OP_PWRITE:
+	case NVM_OP_PREAD:
+		nvme_nvm_cmd_phys(rqd, ns, c);
+		break;
+	default:
+		pr_err("nvme: invalid opcode\n");
+	}
+}
+
+static void nvme_nvm_end_io(struct request *rq, int error)
+{
+	struct nvm_rq *rqd = rq->end_io_data;
+	struct nvm_dev *dev = rqd->dev;
+
+	if (error)
+		pr_err("nvme: err status: %x result: %lx\n",
+				rq->errors, (unsigned long)rq->special);
+
+	dev->mt->end_io(rqd, error);
+
+	kfree(rq->cmd);
+	blk_mq_free_request(rq);
+}
+
+static int nvme_nvm_submit_io(struct request_queue *q, struct nvm_rq *rqd)
+{
+	struct nvme_ns *ns = q->queuedata;
+	struct request *rq;
+	struct bio *bio = rqd->bio;
+	struct nvme_nvm_command *cmd;
+
+	rq = blk_mq_alloc_request(q, bio_rw(bio), GFP_KERNEL, 0);
+	if (IS_ERR(rq))
+		return -ENOMEM;
+
+	cmd = kzalloc(sizeof(struct nvme_nvm_command), GFP_KERNEL);
+	if (!cmd) {
+		blk_mq_free_request(rq);
+		return -ENOMEM;
+	}
+
+	rq->cmd_type = REQ_TYPE_DRV_PRIV;
+	rq->ioprio = bio_prio(bio);
+
+	if (bio_has_data(bio))
+		rq->nr_phys_segments = bio_phys_segments(q, bio);
+
+	rq->__data_len = bio->bi_iter.bi_size;
+	rq->bio = rq->biotail = bio;
+
+	nvme_nvm_rqtocmd(rq, rqd, ns, cmd);
+
+	rq->cmd = (unsigned char *)cmd;
+	rq->cmd_len = sizeof(struct nvme_nvm_command);
+	rq->special = (void *)0;
+
+	rq->end_io_data = rqd;
+
+	blk_execute_rq_nowait(q, NULL, rq, 0, nvme_nvm_end_io);
+
+	return 0;
+}
+
+static int nvme_nvm_erase_block(struct request_queue *q, struct nvm_rq *rqd)
+{
+	struct nvme_ns *ns = q->queuedata;
+	struct nvme_nvm_command c = {};
+
+	c.erase.opcode = nvme_nvm_cmd_erase;
+	c.erase.nsid = cpu_to_le32(ns->ns_id);
+	if (rqd->nr_pages == 1)
+		c.erase.spba = cpu_to_le64(rqd->ppa_addr.ppa);
+	else
+		c.erase.spba = cpu_to_le64(rqd->dma_ppa_list);
+	c.erase.length = cpu_to_le16(rqd->nr_pages - 1);
+
+	return nvme_submit_sync_cmd(q, (struct nvme_command *)&c, NULL, 0);
+}
+
+static void *nvme_nvm_create_dma_pool(struct request_queue *q, char *name)
+{
+	struct nvme_ns *ns = q->queuedata;
+	struct nvme_dev *dev = ns->dev;
+
+	return dma_pool_create(name, dev->dev, PAGE_SIZE, PAGE_SIZE, 0);
+}
+
+static void nvme_nvm_destroy_dma_pool(void *pool)
+{
+	struct dma_pool *dma_pool = pool;
+
+	dma_pool_destroy(dma_pool);
+}
+
+static void *nvme_nvm_dev_dma_alloc(struct request_queue *q, void *pool,
+				    gfp_t mem_flags, dma_addr_t *dma_handler)
+{
+	return dma_pool_alloc(pool, mem_flags, dma_handler);
+}
+
+static void nvme_nvm_dev_dma_free(void *pool, void *ppa_list,
+							dma_addr_t dma_handler)
+{
+	dma_pool_free(pool, ppa_list, dma_handler);
+}
+
+static struct nvm_dev_ops nvme_nvm_dev_ops = {
+	.identify		= nvme_nvm_identify,
+
+	.get_features		= nvme_nvm_get_features,
+	.set_responsibility	= nvme_nvm_set_resp,
+
+	.get_l2p_tbl		= nvme_nvm_get_l2p_tbl,
+
+	.get_bb_tbl		= nvme_nvm_get_bb_tbl,
+
+	.submit_io		= nvme_nvm_submit_io,
+	.erase_block		= nvme_nvm_erase_block,
+
+	.create_dma_pool	= nvme_nvm_create_dma_pool,
+	.destroy_dma_pool	= nvme_nvm_destroy_dma_pool,
+	.dev_dma_alloc		= nvme_nvm_dev_dma_alloc,
+	.dev_dma_free		= nvme_nvm_dev_dma_free,
+
+	.max_phys_sect		= 64,
+};
+
+int nvme_nvm_register(struct request_queue *q, char *disk_name)
+{
+	return nvm_register(q, disk_name, &nvme_nvm_dev_ops);
+}
+
+void nvme_nvm_unregister(struct request_queue *q, char *disk_name)
+{
+	nvm_unregister(disk_name);
+}
+
+int nvme_nvm_ns_supported(struct nvme_ns *ns, struct nvme_id_ns *id)
+{
+	struct nvme_dev *dev = ns->dev;
+	struct pci_dev *pdev = to_pci_dev(dev->dev);
+
+	/* QEMU NVMe simulator - LightNVM detection*/
+	if (pdev->vendor == PCI_VENDOR_ID_INTEL && pdev->device == 0x5845 &&
+							id->vs[0] == 0x1)
+		return 1;
+
+	/* CNEX Labs */
+	if (pdev->vendor == 0x1d1d && pdev->device == 0x2807)
+		return 1;
+
+	return 0;
+}
+#else
+int nvme_nvm_register(struct request_queue *q, char *disk_name)
+{
+	return 0;
+}
+void nvme_nvm_unregister(struct request_queue *q, char *disk_name) {};
+int nvme_nvm_ns_supported(struct nvme_ns *ns, struct nvme_id_ns *id)
+{
+	return 0;
+}
+#endif /* CONFIG_NVM */
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index c1f41bf..fdb4e5b 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -22,6 +22,11 @@
 extern unsigned char nvme_io_timeout;
 #define NVME_IO_TIMEOUT	(nvme_io_timeout * HZ)
 
+enum {
+	NVME_NS_LBA		= 0,
+	NVME_NS_LIGHTNVM	= 1,
+};
+
 /*
  * Represents an NVM Express device.  Each nvme_dev is a PCI function.
  */
@@ -84,6 +89,7 @@ struct nvme_ns {
 	u16 ms;
 	bool ext;
 	u8 pi_type;
+	int type;
 	u64 mode_select_num_blocks;
 	u32 mode_select_block_len;
 };
@@ -130,4 +136,8 @@ int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr);
 int nvme_sg_io32(struct nvme_ns *ns, unsigned long arg);
 int nvme_sg_get_version_num(int __user *ip);
 
+int nvme_nvm_ns_supported(struct nvme_ns *ns, struct nvme_id_ns *id);
+int nvme_nvm_register(struct request_queue *q, char *disk_name);
+void nvme_nvm_unregister(struct request_queue *q, char *disk_name);
+
 #endif /* _NVME_H */
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index ad58ee3..cc22633 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1946,6 +1946,9 @@ static void nvme_free_ns(struct kref *kref)
 {
 	struct nvme_ns *ns = container_of(kref, struct nvme_ns, kref);
 
+	if (ns->type == NVME_NS_LIGHTNVM)
+		nvme_nvm_unregister(ns->queue, ns->disk->disk_name);
+
 	spin_lock(&dev_list_lock);
 	ns->disk->private_data = NULL;
 	spin_unlock(&dev_list_lock);
@@ -2015,6 +2018,16 @@ static int nvme_revalidate_disk(struct gendisk *disk)
 		return -ENODEV;
 	}
 
+	if (nvme_nvm_ns_supported(ns, id) && ns->type != NVME_NS_LIGHTNVM) {
+		if (nvme_nvm_register(ns->queue, disk->disk_name)) {
+			dev_warn(dev->dev,
+				"%s: LightNVM init failure\n", __func__);
+			kfree(id);
+			return -ENODEV;
+		}
+		ns->type = NVME_NS_LIGHTNVM;
+	}
+
 	old_ms = ns->ms;
 	lbaf = id->flbas & NVME_NS_FLBAS_LBA_MASK;
 	ns->lba_shift = id->lbaf[lbaf].ds;
@@ -2046,7 +2059,9 @@ static int nvme_revalidate_disk(struct gendisk *disk)
 								!ns->ext)
 		nvme_init_integrity(ns);
 
-	if (ns->ms && !(ns->ms == 8 && ns->pi_type) && !blk_get_integrity(disk))
+	if ((ns->ms && !(ns->ms == 8 && ns->pi_type) &&
+						!blk_get_integrity(disk)) ||
+						ns->type == NVME_NS_LIGHTNVM)
 		set_capacity(disk, 0);
 	else
 		set_capacity(disk, le64_to_cpup(&id->nsze) << (ns->lba_shift - 9));
@@ -2169,17 +2184,19 @@ static void nvme_alloc_ns(struct nvme_dev *dev, unsigned nsid)
 		goto out_free_disk;
 
 	kref_get(&dev->kref);
-	add_disk(ns->disk);
-	if (ns->ms) {
-		struct block_device *bd = bdget_disk(ns->disk, 0);
-		if (!bd)
-			return;
-		if (blkdev_get(bd, FMODE_READ, NULL)) {
-			bdput(bd);
-			return;
+	if (ns->type != NVME_NS_LIGHTNVM) {
+		add_disk(ns->disk);
+		if (ns->ms) {
+			struct block_device *bd = bdget_disk(ns->disk, 0);
+			if (!bd)
+				return;
+			if (blkdev_get(bd, FMODE_READ, NULL)) {
+				bdput(bd);
+				return;
+			}
+			blkdev_reread_part(bd);
+			blkdev_put(bd, FMODE_READ);
 		}
-		blkdev_reread_part(bd);
-		blkdev_put(bd, FMODE_READ);
 	}
 	return;
  out_free_disk:
