diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 00444dc79756..8b4dd72011bf 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1002,7 +1002,7 @@ qla2x00_free_sysfs_attr(scsi_qla_host_t *vha, bool stop_beacon)
 /* Scsi_Host attributes. */
 
 static ssize_t
-qla2x00_drvr_version_show(struct device *dev,
+qla2x00_driver_version_show(struct device *dev,
 			  struct device_attribute *attr, char *buf)
 {
 	return scnprintf(buf, PAGE_SIZE, "%s\n", qla2x00_version_str);
@@ -2059,7 +2059,21 @@ ql2xiniexchg_store(struct device *dev, struct device_attribute *attr,
 	return strlen(buf);
 }
 
-static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, NULL);
+static ssize_t
+qla2x00_dif_bundle_statistics_show(struct device *dev,
+    struct device_attribute *attr, char *buf)
+{
+	scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+	struct qla_hw_data *ha = vha->hw;
+
+	return scnprintf(buf, PAGE_SIZE,
+	    "cross=%llu read=%llu write=%llu kalloc=%llu dma_alloc=%llu unusable=%u\n",
+	    ha->dif_bundle_crossed_pages, ha->dif_bundle_reads,
+	    ha->dif_bundle_writes, ha->dif_bundle_kallocs,
+	    ha->dif_bundle_dma_allocs, ha->pool.unusable.count);
+}
+
+static DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_driver_version_show, NULL);
 static DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
 static DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
 static DEVICE_ATTR(isp_name, S_IRUGO, qla2x00_isp_name_show, NULL);
@@ -2112,6 +2126,8 @@ static DEVICE_ATTR(zio_threshold, 0644,
 static DEVICE_ATTR_RW(qlini_mode);
 static DEVICE_ATTR_RW(ql2xexchoffld);
 static DEVICE_ATTR_RW(ql2xiniexchg);
+static DEVICE_ATTR(dif_bundle_statistics, 0444,
+    qla2x00_dif_bundle_statistics_show, NULL);
 
 
 struct device_attribute *qla2x00_host_attrs[] = {
@@ -2150,6 +2166,7 @@ struct device_attribute *qla2x00_host_attrs[] = {
 	&dev_attr_min_link_speed,
 	&dev_attr_max_speed_sup,
 	&dev_attr_zio_threshold,
+	&dev_attr_dif_bundle_statistics,
 	NULL, /* reserve for qlini_mode */
 	NULL, /* reserve for ql2xiniexchg */
 	NULL, /* reserve for ql2xexchoffld */
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 26b93c563f92..97f66b142ff2 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -314,6 +314,7 @@ struct srb_cmd {
 #define SRB_CRC_PROT_DMA_VALID		BIT_4	/* DIF: prot DMA valid */
 #define SRB_CRC_CTX_DSD_VALID		BIT_5	/* DIF: dsd_list valid */
 #define SRB_WAKEUP_ON_COMP		BIT_6
+#define SRB_DIF_BUNDL_DMA_VALID		BIT_7   /* DIF: DMA list valid */
 
 /* To identify if a srb is of T10-CRC type. @sp => srb_t pointer */
 #define IS_PROT_IO(sp)	(sp->flags & SRB_CRC_CTX_DSD_VALID)
@@ -1892,6 +1893,13 @@ struct crc_context {
 	/* List of DMA context transfers */
 	struct list_head dsd_list;
 
+	/* List of DIF Bundling context DMA address */
+	struct list_head ldif_dsd_list;
+	u8 no_ldif_dsd;
+
+	struct list_head ldif_dma_hndl_list;
+	u32 dif_bundl_len;
+	u8 no_dif_bundl;
 	/* This structure should not exceed 512 bytes */
 };
 
@@ -4184,6 +4192,26 @@ struct qla_hw_data {
 	uint16_t min_link_speed;
 	uint16_t max_speed_sup;
 
+	/* DMA pool for the DIF bundling buffers */
+	struct dma_pool *dif_bundl_pool;
+	#define DIF_BUNDLING_DMA_POOL_SIZE  1024
+	struct {
+		struct {
+			struct list_head head;
+			uint count;
+		} good;
+		struct {
+			struct list_head head;
+			uint count;
+		} unusable;
+	} pool;
+
+	unsigned long long dif_bundle_crossed_pages;
+	unsigned long long dif_bundle_reads;
+	unsigned long long dif_bundle_writes;
+	unsigned long long dif_bundle_kallocs;
+	unsigned long long dif_bundle_dma_allocs;
+
 	atomic_t        nvme_active_aen_cnt;
 	uint16_t        nvme_last_rptd_aen;             /* Last recorded aen count */
 
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 3673fcdb033a..bcc17a7261e7 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -160,6 +160,7 @@ extern int ql2xautodetectsfp;
 extern int ql2xenablemsix;
 extern int qla2xuseresexchforels;
 extern int ql2xexlogins;
+extern int ql2xdifbundlinginternalbuffers;
 
 extern int qla2x00_loop_reset(scsi_qla_host_t *);
 extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);
@@ -285,7 +286,7 @@ extern int qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *, srb_t *,
 extern int qla24xx_walk_and_build_sglist(struct qla_hw_data *, srb_t *,
 	uint32_t *, uint16_t, struct qla_tc_param *);
 extern int qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *, srb_t *,
-	uint32_t *, uint16_t, struct qla_tc_param *);
+	uint32_t *, uint16_t, struct qla_tgt_cmd *);
 extern int qla24xx_get_one_block_sg(uint32_t, struct qla2_sgx *, uint32_t *);
 extern int qla24xx_configure_prot_mode(srb_t *, uint16_t *);
 extern int qla24xx_build_scsi_crc_2_iocbs(srb_t *,
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 032635321ad6..65ba0e36ee60 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -1098,88 +1098,300 @@ qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd,
 
 int
 qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
-	uint32_t *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
+    uint32_t *cur_dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc)
 {
-	void *next_dsd;
-	uint8_t avail_dsds = 0;
-	uint32_t dsd_list_len;
-	struct dsd_dma *dsd_ptr;
+	struct dsd_dma *dsd_ptr = NULL, *dif_dsd, *nxt_dsd;
 	struct scatterlist *sg, *sgl;
-	int	i;
-	struct scsi_cmnd *cmd;
-	uint32_t *cur_dsd = dsd;
-	uint16_t used_dsds = tot_dsds;
+	struct crc_context *difctx = NULL;
 	struct scsi_qla_host *vha;
+	uint dsd_list_len;
+	uint avail_dsds = 0;
+	uint used_dsds = tot_dsds;
+	bool dif_local_dma_alloc = false;
+	bool direction_to_device = false;
+	int i;
 
 	if (sp) {
-		cmd = GET_CMD_SP(sp);
+		struct scsi_cmnd *cmd = GET_CMD_SP(sp);
 		sgl = scsi_prot_sglist(cmd);
 		vha = sp->vha;
+		difctx = sp->u.scmd.ctx;
+		direction_to_device = cmd->sc_data_direction == DMA_TO_DEVICE;
+		ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
+		  "%s: scsi_cmnd: %p, crc_ctx: %p, sp: %p\n",
+			__func__, cmd, difctx, sp);
 	} else if (tc) {
 		vha = tc->vha;
 		sgl = tc->prot_sg;
+		difctx = tc->ctx;
+		direction_to_device = tc->dma_data_direction == DMA_TO_DEVICE;
 	} else {
 		BUG();
 		return 1;
 	}
 
-	ql_dbg(ql_dbg_tgt, vha, 0xe021,
-		"%s: enter\n", __func__);
-
-	for_each_sg(sgl, sg, tot_dsds, i) {
-		dma_addr_t	sle_dma;
-
-		/* Allocate additional continuation packets? */
-		if (avail_dsds == 0) {
-			avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
-						QLA_DSDS_PER_IOCB : used_dsds;
-			dsd_list_len = (avail_dsds + 1) * 12;
-			used_dsds -= avail_dsds;
-
-			/* allocate tracking DS */
-			dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
-			if (!dsd_ptr)
-				return 1;
-
-			/* allocate new list */
-			dsd_ptr->dsd_addr = next_dsd =
-			    dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
-				&dsd_ptr->dsd_list_dma);
-
-			if (!next_dsd) {
-				/*
-				 * Need to cleanup only this dsd_ptr, rest
-				 * will be done by sp_free_dma()
-				 */
-				kfree(dsd_ptr);
-				return 1;
+	ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
+	    "%s: enter (write=%u)\n", __func__, direction_to_device);
+
+	/* if initiator doing write or target doing read */
+	if (direction_to_device) {
+		for_each_sg(sgl, sg, tot_dsds, i) {
+			dma_addr_t sle_phys = sg_phys(sg);
+
+			/* If SGE addr + len flips bits in upper 32-bits */
+			if (MSD(sle_phys + sg->length) ^ MSD(sle_phys)) {
+				ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022,
+				    "%s: page boundary crossing (phys=%llx len=%x)\n",
+				    __func__, sle_phys, sg->length);
+
+				if (difctx) {
+					ha->dif_bundle_crossed_pages++;
+					dif_local_dma_alloc = true;
+				} else {
+					ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
+					    vha, 0xe022,
+					    "%s: difctx pointer is NULL\n",
+					    __func__);
+				}
+				break;
+			}
+		}
+		ha->dif_bundle_writes++;
+	} else {
+		ha->dif_bundle_reads++;
+	}
+
+	if (ql2xdifbundlinginternalbuffers)
+		dif_local_dma_alloc = direction_to_device;
+
+	if (dif_local_dma_alloc) {
+		u32 track_difbundl_buf = 0;
+		u32 ldma_sg_len = 0;
+		u8 ldma_needed = 1;
+
+		difctx->no_dif_bundl = 0;
+		difctx->dif_bundl_len = 0;
+
+		/* Track DSD buffers */
+		INIT_LIST_HEAD(&difctx->ldif_dsd_list);
+		/* Track local DMA buffers */
+		INIT_LIST_HEAD(&difctx->ldif_dma_hndl_list);
+
+		for_each_sg(sgl, sg, tot_dsds, i) {
+			u32 sglen = sg_dma_len(sg);
+
+			ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe023,
+			    "%s: sg[%x] (phys=%llx sglen=%x) ldma_sg_len: %x dif_bundl_len: %x ldma_needed: %x\n",
+			    __func__, i, sg_phys(sg), sglen, ldma_sg_len,
+			    difctx->dif_bundl_len, ldma_needed);
+
+			while (sglen) {
+				u32 xfrlen = 0;
+
+				if (ldma_needed) {
+					/*
+					 * Allocate list item to store
+					 * the DMA buffers
+					 */
+					dsd_ptr = kzalloc(sizeof(*dsd_ptr),
+					    GFP_ATOMIC);
+					if (!dsd_ptr) {
+						ql_dbg(ql_dbg_tgt, vha, 0xe024,
+						    "%s: failed alloc dsd_ptr\n",
+						    __func__);
+						return 1;
+					}
+					ha->dif_bundle_kallocs++;
+
+					/* allocate dma buffer */
+					dsd_ptr->dsd_addr = dma_pool_alloc
+						(ha->dif_bundl_pool, GFP_ATOMIC,
+						 &dsd_ptr->dsd_list_dma);
+					if (!dsd_ptr->dsd_addr) {
+						ql_dbg(ql_dbg_tgt, vha, 0xe024,
+						    "%s: failed alloc ->dsd_ptr\n",
+						    __func__);
+						/*
+						 * need to cleanup only this
+						 * dsd_ptr rest will be done
+						 * by sp_free_dma()
+						 */
+						kfree(dsd_ptr);
+						ha->dif_bundle_kallocs--;
+						return 1;
+					}
+					ha->dif_bundle_dma_allocs++;
+					ldma_needed = 0;
+					difctx->no_dif_bundl++;
+					list_add_tail(&dsd_ptr->list,
+					    &difctx->ldif_dma_hndl_list);
+				}
+
+				/* xfrlen is min of dma pool size and sglen */
+				xfrlen = (sglen >
+				   (DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len)) ?
+				    DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len :
+				    sglen;
+
+				/* replace with local allocated dma buffer */
+				sg_pcopy_to_buffer(sgl, sg_nents(sgl),
+				    dsd_ptr->dsd_addr + ldma_sg_len, xfrlen,
+				    difctx->dif_bundl_len);
+				difctx->dif_bundl_len += xfrlen;
+				sglen -= xfrlen;
+				ldma_sg_len += xfrlen;
+				if (ldma_sg_len == DIF_BUNDLING_DMA_POOL_SIZE ||
+				    sg_is_last(sg)) {
+					ldma_needed = 1;
+					ldma_sg_len = 0;
+				}
 			}
+		}
 
-			if (sp) {
-				list_add_tail(&dsd_ptr->list,
-				    &((struct crc_context *)
-					    sp->u.scmd.ctx)->dsd_list);
+		track_difbundl_buf = used_dsds = difctx->no_dif_bundl;
+		ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe025,
+		    "dif_bundl_len=%x, no_dif_bundl=%x track_difbundl_buf: %x\n",
+		    difctx->dif_bundl_len, difctx->no_dif_bundl,
+		    track_difbundl_buf);
 
-				sp->flags |= SRB_CRC_CTX_DSD_VALID;
-			} else {
-				list_add_tail(&dsd_ptr->list,
-				    &(tc->ctx->dsd_list));
-				*tc->ctx_dsd_alloced = 1;
+		if (sp)
+			sp->flags |= SRB_DIF_BUNDL_DMA_VALID;
+		else
+			tc->prot_flags = DIF_BUNDL_DMA_VALID;
+
+		list_for_each_entry_safe(dif_dsd, nxt_dsd,
+		    &difctx->ldif_dma_hndl_list, list) {
+			u32 sglen = (difctx->dif_bundl_len >
+			    DIF_BUNDLING_DMA_POOL_SIZE) ?
+			    DIF_BUNDLING_DMA_POOL_SIZE : difctx->dif_bundl_len;
+
+			BUG_ON(track_difbundl_buf == 0);
+
+			/* Allocate additional continuation packets? */
+			if (avail_dsds == 0) {
+				ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha,
+				    0xe024,
+				    "%s: adding continuation iocb's\n",
+				    __func__);
+				avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
+				    QLA_DSDS_PER_IOCB : used_dsds;
+				dsd_list_len = (avail_dsds + 1) * 12;
+				used_dsds -= avail_dsds;
+
+				/* allocate tracking DS */
+				dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
+				if (!dsd_ptr) {
+					ql_dbg(ql_dbg_tgt, vha, 0xe026,
+					    "%s: failed alloc dsd_ptr\n",
+					    __func__);
+					return 1;
+				}
+				ha->dif_bundle_kallocs++;
+
+				difctx->no_ldif_dsd++;
+				/* allocate new list */
+				dsd_ptr->dsd_addr =
+				    dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
+					&dsd_ptr->dsd_list_dma);
+				if (!dsd_ptr->dsd_addr) {
+					ql_dbg(ql_dbg_tgt, vha, 0xe026,
+					    "%s: failed alloc ->dsd_addr\n",
+					    __func__);
+					/*
+					 * need to cleanup only this dsd_ptr
+					 *  rest will be done by sp_free_dma()
+					 */
+					kfree(dsd_ptr);
+					ha->dif_bundle_kallocs--;
+					return 1;
+				}
+				ha->dif_bundle_dma_allocs++;
+
+				if (sp) {
+					list_add_tail(&dsd_ptr->list,
+					    &difctx->ldif_dsd_list);
+					sp->flags |= SRB_CRC_CTX_DSD_VALID;
+				} else {
+					list_add_tail(&dsd_ptr->list,
+					    &difctx->ldif_dsd_list);
+					tc->ctx_dsd_alloced = 1;
+				}
+
+				/* add new list to cmd iocb or last list */
+				*cur_dsd++ =
+				    cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
+				*cur_dsd++ =
+				    cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
+				*cur_dsd++ = dsd_list_len;
+				cur_dsd = dsd_ptr->dsd_addr;
 			}
-
-			/* add new list to cmd iocb or last list */
-			*cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
-			*cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
-			*cur_dsd++ = dsd_list_len;
-			cur_dsd = (uint32_t *)next_dsd;
+			*cur_dsd++ = cpu_to_le32(LSD(dif_dsd->dsd_list_dma));
+			*cur_dsd++ = cpu_to_le32(MSD(dif_dsd->dsd_list_dma));
+			*cur_dsd++ = cpu_to_le32(sglen);
+			avail_dsds--;
+			difctx->dif_bundl_len -= sglen;
+			track_difbundl_buf--;
 		}
-		sle_dma = sg_dma_address(sg);
-
-		*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
-		*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
-		*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
 
-		avail_dsds--;
+		ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe026,
+		    "%s: no_ldif_dsd:%x, no_dif_bundl:%x\n", __func__,
+			difctx->no_ldif_dsd, difctx->no_dif_bundl);
+	} else {
+		for_each_sg(sgl, sg, tot_dsds, i) {
+			dma_addr_t sle_dma;
+
+			/* Allocate additional continuation packets? */
+			if (avail_dsds == 0) {
+				avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
+				    QLA_DSDS_PER_IOCB : used_dsds;
+				dsd_list_len = (avail_dsds + 1) * 12;
+				used_dsds -= avail_dsds;
+
+				/* allocate tracking DS */
+				dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
+				if (!dsd_ptr) {
+					ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
+					    vha, 0xe027,
+					    "%s: failed alloc dsd_dma...\n",
+					    __func__);
+					return 1;
+				}
+
+				/* allocate new list */
+				dsd_ptr->dsd_addr =
+				    dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
+					&dsd_ptr->dsd_list_dma);
+				if (!dsd_ptr->dsd_addr) {
+					/* need to cleanup only this dsd_ptr */
+					/* rest will be done by sp_free_dma() */
+					kfree(dsd_ptr);
+					return 1;
+				}
+
+				if (sp) {
+					list_add_tail(&dsd_ptr->list,
+					    &difctx->dsd_list);
+					sp->flags |= SRB_CRC_CTX_DSD_VALID;
+				} else {
+					list_add_tail(&dsd_ptr->list,
+					    &difctx->dsd_list);
+					tc->ctx_dsd_alloced = 1;
+				}
+
+				/* add new list to cmd iocb or last list */
+				*cur_dsd++ =
+				    cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
+				*cur_dsd++ =
+				    cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
+				*cur_dsd++ = dsd_list_len;
+				cur_dsd = dsd_ptr->dsd_addr;
+			}
+			sle_dma = sg_dma_address(sg);
+			*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
+			*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
+			*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
+			avail_dsds--;
+		}
 	}
 	/* Null termination */
 	*cur_dsd++ = 0;
@@ -1187,7 +1399,6 @@ qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
 	*cur_dsd++ = 0;
 	return 0;
 }
-
 /**
  * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command
  *							Type 6 IOCB types.
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 30d3090842f8..5c1de6ed825b 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -2725,6 +2725,17 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 			    cp->device->vendor);
 		break;
 
+	case CS_DMA:
+		ql_log(ql_log_info, fcport->vha, 0x3022,
+		    "CS_DMA error: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%06x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
+		    comp_status, scsi_status, res, vha->host_no,
+		    cp->device->id, cp->device->lun, fcport->d_id.b24,
+		    ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
+		    resid_len, fw_resid_len, sp, cp);
+		ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
+		    pkt, sizeof(*sts24));
+		res = DID_ERROR << 16;
+		break;
 	default:
 		res = DID_ERROR << 16;
 		break;
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index deb923058d08..2bc4fcd0c797 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -299,6 +299,13 @@ MODULE_PARM_DESC(ql2xprotguard, "Override choice of DIX checksum\n"
     "  1 -- Force T10 CRC\n"
     "  2 -- Force IP checksum\n");
 
+int ql2xdifbundlinginternalbuffers;
+module_param(ql2xdifbundlinginternalbuffers, int, 0644);
+MODULE_PARM_DESC(ql2xdifbundlinginternalbuffers,
+    "Force using internal buffers for DIF information\n"
+    "0 (Default). Based on check.\n"
+    "1 Force using internal buffers\n");
+
 /*
  * SCSI host template entry points
  */
@@ -819,7 +826,44 @@ qla2xxx_qpair_sp_free_dma(void *ptr)
 		ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
 		ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
 		mempool_free(ctx1, ha->ctx_mempool);
+		sp->flags &= ~SRB_FCP_CMND_DMA_VALID;
+	}
+	if (sp->flags & SRB_DIF_BUNDL_DMA_VALID) {
+		struct crc_context *difctx = sp->u.scmd.ctx;
+		struct dsd_dma *dif_dsd, *nxt_dsd;
+
+		list_for_each_entry_safe(dif_dsd, nxt_dsd,
+		    &difctx->ldif_dma_hndl_list, list) {
+			list_del(&dif_dsd->list);
+			dma_pool_free(ha->dif_bundl_pool, dif_dsd->dsd_addr,
+			    dif_dsd->dsd_list_dma);
+			kfree(dif_dsd);
+			difctx->no_dif_bundl--;
+		}
+
+		list_for_each_entry_safe(dif_dsd, nxt_dsd,
+		    &difctx->ldif_dsd_list, list) {
+			list_del(&dif_dsd->list);
+			dma_pool_free(ha->dl_dma_pool, dif_dsd->dsd_addr,
+			    dif_dsd->dsd_list_dma);
+			kfree(dif_dsd);
+			difctx->no_ldif_dsd--;
+		}
+
+		if (difctx->no_ldif_dsd) {
+			ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
+			    "%s: difctx->no_ldif_dsd=%x\n",
+			    __func__, difctx->no_ldif_dsd);
+		}
+
+		if (difctx->no_dif_bundl) {
+			ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
+			    "%s: difctx->no_dif_bundl=%x\n",
+			    __func__, difctx->no_dif_bundl);
+		}
+		sp->flags &= ~SRB_DIF_BUNDL_DMA_VALID;
 	}
+
 end:
 	CMD_SP(cmd) = NULL;
 	qla2xxx_rel_qpair_sp(sp->qpair, sp);
@@ -4030,9 +4074,86 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
 			    "Failed to allocate memory for fcp_cmnd_dma_pool.\n");
 			goto fail_dl_dma_pool;
 		}
+
+		if (ql2xenabledif) {
+			u64 bufsize = DIF_BUNDLING_DMA_POOL_SIZE;
+			struct dsd_dma *dsd, *nxt;
+			uint i;
+			/* Creata a DMA pool of buffers for DIF bundling */
+			ha->dif_bundl_pool = dma_pool_create(name,
+			    &ha->pdev->dev, DIF_BUNDLING_DMA_POOL_SIZE, 8, 0);
+			if (!ha->dif_bundl_pool) {
+				ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
+				    "%s: failed create dif_bundl_pool\n",
+				    __func__);
+				goto fail_dif_bundl_dma_pool;
+			}
+
+			INIT_LIST_HEAD(&ha->pool.good.head);
+			INIT_LIST_HEAD(&ha->pool.unusable.head);
+			ha->pool.good.count = 0;
+			ha->pool.unusable.count = 0;
+			for (i = 0; i < 128; i++) {
+				dsd = kzalloc(sizeof(*dsd), GFP_ATOMIC);
+				if (!dsd) {
+					ql_dbg_pci(ql_dbg_init, ha->pdev,
+					    0xe0ee, "%s: failed alloc dsd\n",
+					    __func__);
+					return 1;
+				}
+				ha->dif_bundle_kallocs++;
+
+				dsd->dsd_addr = dma_pool_alloc(
+				    ha->dif_bundl_pool, GFP_ATOMIC,
+				    &dsd->dsd_list_dma);
+				if (!dsd->dsd_addr) {
+					ql_dbg_pci(ql_dbg_init, ha->pdev,
+					    0xe0ee,
+					    "%s: failed alloc ->dsd_addr\n",
+					    __func__);
+					kfree(dsd);
+					ha->dif_bundle_kallocs--;
+					continue;
+				}
+				ha->dif_bundle_dma_allocs++;
+
+				/*
+				 * if DMA buffer crosses 4G boundary,
+				 * put it on bad list
+				 */
+				if (MSD(dsd->dsd_list_dma) ^
+				    MSD(dsd->dsd_list_dma + bufsize)) {
+					list_add_tail(&dsd->list,
+					    &ha->pool.unusable.head);
+					ha->pool.unusable.count++;
+				} else {
+					list_add_tail(&dsd->list,
+					    &ha->pool.good.head);
+					ha->pool.good.count++;
+				}
+			}
+
+			/* return the good ones back to the pool */
+			list_for_each_entry_safe(dsd, nxt,
+			    &ha->pool.good.head, list) {
+				list_del(&dsd->list);
+				dma_pool_free(ha->dif_bundl_pool,
+				    dsd->dsd_addr, dsd->dsd_list_dma);
+				ha->dif_bundle_dma_allocs--;
+				kfree(dsd);
+				ha->dif_bundle_kallocs--;
+			}
+
+			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0024,
+			    "%s: dif dma pool (good=%u unusable=%u)\n",
+			    __func__, ha->pool.good.count,
+			    ha->pool.unusable.count);
+		}
+
 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0025,
-		    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p.\n",
-		    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool);
+		    "dl_dma_pool=%p fcp_cmnd_dma_pool=%p dif_bundl_pool=%p.\n",
+		    ha->dl_dma_pool, ha->fcp_cmnd_dma_pool,
+		    ha->dif_bundl_pool);
 	}
 
 	/* Allocate memory for SNS commands */
@@ -4197,6 +4318,24 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
 		dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
 		    ha->sns_cmd, ha->sns_cmd_dma);
 fail_dma_pool:
+	if (ql2xenabledif) {
+		struct dsd_dma *dsd, *nxt;
+
+		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
+		    list) {
+			list_del(&dsd->list);
+			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
+			    dsd->dsd_list_dma);
+			ha->dif_bundle_dma_allocs--;
+			kfree(dsd);
+			ha->dif_bundle_kallocs--;
+			ha->pool.unusable.count--;
+		}
+		dma_pool_destroy(ha->dif_bundl_pool);
+		ha->dif_bundl_pool = NULL;
+	}
+
+fail_dif_bundl_dma_pool:
 	if (IS_QLA82XX(ha) || ql2xenabledif) {
 		dma_pool_destroy(ha->fcp_cmnd_dma_pool);
 		ha->fcp_cmnd_dma_pool = NULL;
@@ -4583,6 +4722,31 @@ qla2x00_mem_free(struct qla_hw_data *ha)
 
 	if (ha->ctx_mempool)
 		mempool_destroy(ha->ctx_mempool);
+	if (ql2xenabledif) {
+		struct dsd_dma *dsd, *nxt;
+
+		list_for_each_entry_safe(dsd, nxt, &ha->pool.unusable.head,
+		    list) {
+			list_del(&dsd->list);
+			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
+			    dsd->dsd_list_dma);
+			ha->dif_bundle_dma_allocs--;
+			kfree(dsd);
+			ha->dif_bundle_kallocs--;
+			ha->pool.unusable.count--;
+		}
+		list_for_each_entry_safe(dsd, nxt, &ha->pool.good.head, list) {
+			list_del(&dsd->list);
+			dma_pool_free(ha->dif_bundl_pool, dsd->dsd_addr,
+			    dsd->dsd_list_dma);
+			ha->dif_bundle_dma_allocs--;
+			kfree(dsd);
+			ha->dif_bundle_kallocs--;
+		}
+	}
+
+	if (ha->dif_bundl_pool)
+		dma_pool_destroy(ha->dif_bundl_pool);
 
 	qlt_mem_free(ha);
 
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index bceb8e882e7f..0df24968aeda 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -3230,7 +3230,7 @@ qlt_build_ctio_crc2_pkt(struct qla_qpair *qpair, struct qla_tgt_prm *prm)
 
 		cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address;
 		if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd,
-			prm->prot_seg_cnt, &tc))
+			prm->prot_seg_cnt, cmd))
 			goto crc_queuing_error;
 	}
 	return QLA_SUCCESS;
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index 577e1786a3f1..f3de75000a08 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -928,6 +928,8 @@ struct qla_tgt_cmd {
 	uint64_t	lba;
 	uint16_t	a_guard, e_guard, a_app_tag, e_app_tag;
 	uint32_t	a_ref_tag, e_ref_tag;
+#define DIF_BUNDL_DMA_VALID 1
+	uint16_t prot_flags;
 
 	uint64_t jiffies_at_alloc;
 	uint64_t jiffies_at_free;
