Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 6688 insertions, 0 deletions

diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
new file mode 100644
index 000000000..250d42371
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -0,0 +1,6688 @@
+/*******************************************************************
+ * This file is part of the Emulex Linux Device Driver for         *
+ * Fibre Channel Host Bus Adapters.                                *
+ * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term *
+ * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
+ * Copyright (C) 2007-2015 Emulex.  All rights reserved.           *
+ * EMULEX and SLI are trademarks of Emulex.                        *
+ * www.broadcom.com                                                *
+ *                                                                 *
+ * This program is free software; you can redistribute it and/or   *
+ * modify it under the terms of version 2 of the GNU General       *
+ * Public License as published by the Free Software Foundation.    *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
+ * more details, a copy of which can be found in the file COPYING  *
+ * included with this package.                                     *
+ *******************************************************************/
+
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/idr.h>
+#include <linux/interrupt.h>
+#include <linux/kthread.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/ctype.h>
+#include <linux/vmalloc.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_fc.h>
+#include <scsi/fc/fc_fs.h>
+
+#include "lpfc_hw4.h"
+#include "lpfc_hw.h"
+#include "lpfc_sli.h"
+#include "lpfc_sli4.h"
+#include "lpfc_nl.h"
+#include "lpfc_disc.h"
+#include "lpfc.h"
+#include "lpfc_scsi.h"
+#include "lpfc_nvme.h"
+#include "lpfc_logmsg.h"
+#include "lpfc_crtn.h"
+#include "lpfc_vport.h"
+#include "lpfc_version.h"
+#include "lpfc_compat.h"
+#include "lpfc_debugfs.h"
+#include "lpfc_bsg.h"
+
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+/*
+ * debugfs interface
+ *
+ * To access this interface the user should:
+ * # mount -t debugfs none /sys/kernel/debug
+ *
+ * The lpfc debugfs directory hierarchy is:
+ * /sys/kernel/debug/lpfc/fnX/vportY
+ * where X is the lpfc hba function unique_id
+ * where Y is the vport VPI on that hba
+ *
+ * Debugging services available per vport:
+ * discovery_trace
+ * This is an ACSII readable file that contains a trace of the last
+ * lpfc_debugfs_max_disc_trc events that happened on a specific vport.
+ * See lpfc_debugfs.h for different categories of  discovery events.
+ * To enable the discovery trace, the following module parameters must be set:
+ * lpfc_debugfs_enable=1         Turns on lpfc debugfs filesystem support
+ * lpfc_debugfs_max_disc_trc=X   Where X is the event trace depth for
+ *                               EACH vport. X MUST also be a power of 2.
+ * lpfc_debugfs_mask_disc_trc=Y  Where Y is an event mask as defined in
+ *                               lpfc_debugfs.h .
+ *
+ * slow_ring_trace
+ * This is an ACSII readable file that contains a trace of the last
+ * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA.
+ * To enable the slow ring trace, the following module parameters must be set:
+ * lpfc_debugfs_enable=1         Turns on lpfc debugfs filesystem support
+ * lpfc_debugfs_max_slow_ring_trc=X   Where X is the event trace depth for
+ *                               the HBA. X MUST also be a power of 2.
+ */
+static int lpfc_debugfs_enable = 1;
+module_param(lpfc_debugfs_enable, int, S_IRUGO);
+MODULE_PARM_DESC(lpfc_debugfs_enable, "Enable debugfs services");
+
+/* This MUST be a power of 2 */
+static int lpfc_debugfs_max_disc_trc;
+module_param(lpfc_debugfs_max_disc_trc, int, S_IRUGO);
+MODULE_PARM_DESC(lpfc_debugfs_max_disc_trc,
+	"Set debugfs discovery trace depth");
+
+/* This MUST be a power of 2 */
+static int lpfc_debugfs_max_slow_ring_trc;
+module_param(lpfc_debugfs_max_slow_ring_trc, int, S_IRUGO);
+MODULE_PARM_DESC(lpfc_debugfs_max_slow_ring_trc,
+	"Set debugfs slow ring trace depth");
+
+/* This MUST be a power of 2 */
+static int lpfc_debugfs_max_nvmeio_trc;
+module_param(lpfc_debugfs_max_nvmeio_trc, int, 0444);
+MODULE_PARM_DESC(lpfc_debugfs_max_nvmeio_trc,
+		 "Set debugfs NVME IO trace depth");
+
+static int lpfc_debugfs_mask_disc_trc;
+module_param(lpfc_debugfs_mask_disc_trc, int, S_IRUGO);
+MODULE_PARM_DESC(lpfc_debugfs_mask_disc_trc,
+	"Set debugfs discovery trace mask");
+
+#include <linux/debugfs.h>
+
+static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
+static unsigned long lpfc_debugfs_start_time = 0L;
+
+/* iDiag */
+static struct lpfc_idiag idiag;
+
+/**
+ * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer
+ * @vport: The vport to gather the log info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine gathers the lpfc discovery debugfs data from the @vport and
+ * dumps it to @buf up to @size number of bytes. It will start at the next entry
+ * in the log and process the log until the end of the buffer. Then it will
+ * gather from the beginning of the log and process until the current entry.
+ *
+ * Notes:
+ * Discovery logging will be disabled while while this routine dumps the log.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
+{
+	int i, index, len, enable;
+	uint32_t ms;
+	struct lpfc_debugfs_trc *dtp;
+	char *buffer;
+
+	buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
+	if (!buffer)
+		return 0;
+
+	enable = lpfc_debugfs_enable;
+	lpfc_debugfs_enable = 0;
+
+	len = 0;
+	index = (atomic_read(&vport->disc_trc_cnt) + 1) &
+		(lpfc_debugfs_max_disc_trc - 1);
+	for (i = index; i < lpfc_debugfs_max_disc_trc; i++) {
+		dtp = vport->disc_trc + i;
+		if (!dtp->fmt)
+			continue;
+		ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
+		snprintf(buffer,
+			LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
+			dtp->seq_cnt, ms, dtp->fmt);
+		len +=  scnprintf(buf+len, size-len, buffer,
+			dtp->data1, dtp->data2, dtp->data3);
+	}
+	for (i = 0; i < index; i++) {
+		dtp = vport->disc_trc + i;
+		if (!dtp->fmt)
+			continue;
+		ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
+		snprintf(buffer,
+			LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
+			dtp->seq_cnt, ms, dtp->fmt);
+		len +=  scnprintf(buf+len, size-len, buffer,
+			dtp->data1, dtp->data2, dtp->data3);
+	}
+
+	lpfc_debugfs_enable = enable;
+	kfree(buffer);
+
+	return len;
+}
+
+/**
+ * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer
+ * @phba: The HBA to gather the log info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine gathers the lpfc slow ring debugfs data from the @phba and
+ * dumps it to @buf up to @size number of bytes. It will start at the next entry
+ * in the log and process the log until the end of the buffer. Then it will
+ * gather from the beginning of the log and process until the current entry.
+ *
+ * Notes:
+ * Slow ring logging will be disabled while while this routine dumps the log.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
+{
+	int i, index, len, enable;
+	uint32_t ms;
+	struct lpfc_debugfs_trc *dtp;
+	char *buffer;
+
+	buffer = kmalloc(LPFC_DEBUG_TRC_ENTRY_SIZE, GFP_KERNEL);
+	if (!buffer)
+		return 0;
+
+	enable = lpfc_debugfs_enable;
+	lpfc_debugfs_enable = 0;
+
+	len = 0;
+	index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) &
+		(lpfc_debugfs_max_slow_ring_trc - 1);
+	for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) {
+		dtp = phba->slow_ring_trc + i;
+		if (!dtp->fmt)
+			continue;
+		ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
+		snprintf(buffer,
+			LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
+			dtp->seq_cnt, ms, dtp->fmt);
+		len +=  scnprintf(buf+len, size-len, buffer,
+			dtp->data1, dtp->data2, dtp->data3);
+	}
+	for (i = 0; i < index; i++) {
+		dtp = phba->slow_ring_trc + i;
+		if (!dtp->fmt)
+			continue;
+		ms = jiffies_to_msecs(dtp->jif - lpfc_debugfs_start_time);
+		snprintf(buffer,
+			LPFC_DEBUG_TRC_ENTRY_SIZE, "%010d:%010d ms:%s\n",
+			dtp->seq_cnt, ms, dtp->fmt);
+		len +=  scnprintf(buf+len, size-len, buffer,
+			dtp->data1, dtp->data2, dtp->data3);
+	}
+
+	lpfc_debugfs_enable = enable;
+	kfree(buffer);
+
+	return len;
+}
+
+static int lpfc_debugfs_last_hbq = -1;
+
+/**
+ * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer
+ * @phba: The HBA to gather host buffer info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the host buffer queue info from the @phba to @buf up to
+ * @size number of bytes. A header that describes the current hbq state will be
+ * dumped to @buf first and then info on each hbq entry will be dumped to @buf
+ * until @size bytes have been dumped or all the hbq info has been dumped.
+ *
+ * Notes:
+ * This routine will rotate through each configured HBQ each time called.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
+{
+	int len = 0;
+	int i, j, found, posted, low;
+	uint32_t phys, raw_index, getidx;
+	struct lpfc_hbq_init *hip;
+	struct hbq_s *hbqs;
+	struct lpfc_hbq_entry *hbqe;
+	struct lpfc_dmabuf *d_buf;
+	struct hbq_dmabuf *hbq_buf;
+
+	if (phba->sli_rev != 3)
+		return 0;
+
+	spin_lock_irq(&phba->hbalock);
+
+	/* toggle between multiple hbqs, if any */
+	i = lpfc_sli_hbq_count();
+	if (i > 1) {
+		 lpfc_debugfs_last_hbq++;
+		 if (lpfc_debugfs_last_hbq >= i)
+			lpfc_debugfs_last_hbq = 0;
+	}
+	else
+		lpfc_debugfs_last_hbq = 0;
+
+	i = lpfc_debugfs_last_hbq;
+
+	len +=  scnprintf(buf+len, size-len, "HBQ %d Info\n", i);
+
+	hbqs =  &phba->hbqs[i];
+	posted = 0;
+	list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list)
+		posted++;
+
+	hip =  lpfc_hbq_defs[i];
+	len +=  scnprintf(buf+len, size-len,
+		"idx:%d prof:%d rn:%d bufcnt:%d icnt:%d acnt:%d posted %d\n",
+		hip->hbq_index, hip->profile, hip->rn,
+		hip->buffer_count, hip->init_count, hip->add_count, posted);
+
+	raw_index = phba->hbq_get[i];
+	getidx = le32_to_cpu(raw_index);
+	len +=  scnprintf(buf+len, size-len,
+		"entries:%d bufcnt:%d Put:%d nPut:%d localGet:%d hbaGet:%d\n",
+		hbqs->entry_count, hbqs->buffer_count, hbqs->hbqPutIdx,
+		hbqs->next_hbqPutIdx, hbqs->local_hbqGetIdx, getidx);
+
+	hbqe = (struct lpfc_hbq_entry *) phba->hbqs[i].hbq_virt;
+	for (j=0; j<hbqs->entry_count; j++) {
+		len +=  scnprintf(buf+len, size-len,
+			"%03d: %08x %04x %05x ", j,
+			le32_to_cpu(hbqe->bde.addrLow),
+			le32_to_cpu(hbqe->bde.tus.w),
+			le32_to_cpu(hbqe->buffer_tag));
+		i = 0;
+		found = 0;
+
+		/* First calculate if slot has an associated posted buffer */
+		low = hbqs->hbqPutIdx - posted;
+		if (low >= 0) {
+			if ((j >= hbqs->hbqPutIdx) || (j < low)) {
+				len +=  scnprintf(buf + len, size - len,
+						"Unused\n");
+				goto skipit;
+			}
+		}
+		else {
+			if ((j >= hbqs->hbqPutIdx) &&
+				(j < (hbqs->entry_count+low))) {
+				len +=  scnprintf(buf + len, size - len,
+						"Unused\n");
+				goto skipit;
+			}
+		}
+
+		/* Get the Buffer info for the posted buffer */
+		list_for_each_entry(d_buf, &hbqs->hbq_buffer_list, list) {
+			hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
+			phys = ((uint64_t)hbq_buf->dbuf.phys & 0xffffffff);
+			if (phys == le32_to_cpu(hbqe->bde.addrLow)) {
+				len +=  scnprintf(buf+len, size-len,
+					"Buf%d: x%px %06x\n", i,
+					hbq_buf->dbuf.virt, hbq_buf->tag);
+				found = 1;
+				break;
+			}
+			i++;
+		}
+		if (!found) {
+			len +=  scnprintf(buf+len, size-len, "No DMAinfo?\n");
+		}
+skipit:
+		hbqe++;
+		if (len > LPFC_HBQINFO_SIZE - 54)
+			break;
+	}
+	spin_unlock_irq(&phba->hbalock);
+	return len;
+}
+
+static int lpfc_debugfs_last_xripool;
+
+/**
+ * lpfc_debugfs_commonxripools_data - Dump Hardware Queue info to a buffer
+ * @phba: The HBA to gather host buffer info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the Hardware Queue info from the @phba to @buf up to
+ * @size number of bytes. A header that describes the current hdwq state will be
+ * dumped to @buf first and then info on each hdwq entry will be dumped to @buf
+ * until @size bytes have been dumped or all the hdwq info has been dumped.
+ *
+ * Notes:
+ * This routine will rotate through each configured Hardware Queue each
+ * time called.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_commonxripools_data(struct lpfc_hba *phba, char *buf, int size)
+{
+	struct lpfc_sli4_hdw_queue *qp;
+	int len = 0;
+	int i, out;
+	unsigned long iflag;
+
+	for (i = 0; i < phba->cfg_hdw_queue; i++) {
+		if (len > (LPFC_DUMP_MULTIXRIPOOL_SIZE - 80))
+			break;
+		qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_xripool];
+
+		len += scnprintf(buf + len, size - len, "HdwQ %d Info ", i);
+		spin_lock_irqsave(&qp->abts_io_buf_list_lock, iflag);
+		spin_lock(&qp->io_buf_list_get_lock);
+		spin_lock(&qp->io_buf_list_put_lock);
+		out = qp->total_io_bufs - (qp->get_io_bufs + qp->put_io_bufs +
+			qp->abts_scsi_io_bufs + qp->abts_nvme_io_bufs);
+		len += scnprintf(buf + len, size - len,
+				 "tot:%d get:%d put:%d mt:%d "
+				 "ABTS scsi:%d nvme:%d Out:%d\n",
+			qp->total_io_bufs, qp->get_io_bufs, qp->put_io_bufs,
+			qp->empty_io_bufs, qp->abts_scsi_io_bufs,
+			qp->abts_nvme_io_bufs, out);
+		spin_unlock(&qp->io_buf_list_put_lock);
+		spin_unlock(&qp->io_buf_list_get_lock);
+		spin_unlock_irqrestore(&qp->abts_io_buf_list_lock, iflag);
+
+		lpfc_debugfs_last_xripool++;
+		if (lpfc_debugfs_last_xripool >= phba->cfg_hdw_queue)
+			lpfc_debugfs_last_xripool = 0;
+	}
+
+	return len;
+}
+
+/**
+ * lpfc_debugfs_multixripools_data - Display multi-XRI pools information
+ * @phba: The HBA to gather host buffer info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine displays current multi-XRI pools information including XRI
+ * count in public, private and txcmplq. It also displays current high and
+ * low watermark.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_multixripools_data(struct lpfc_hba *phba, char *buf, int size)
+{
+	u32 i;
+	u32 hwq_count;
+	struct lpfc_sli4_hdw_queue *qp;
+	struct lpfc_multixri_pool *multixri_pool;
+	struct lpfc_pvt_pool *pvt_pool;
+	struct lpfc_pbl_pool *pbl_pool;
+	u32 txcmplq_cnt;
+	char tmp[LPFC_DEBUG_OUT_LINE_SZ] = {0};
+
+	if (phba->sli_rev != LPFC_SLI_REV4)
+		return 0;
+
+	if (!phba->sli4_hba.hdwq)
+		return 0;
+
+	if (!phba->cfg_xri_rebalancing) {
+		i = lpfc_debugfs_commonxripools_data(phba, buf, size);
+		return i;
+	}
+
+	/*
+	 * Pbl: Current number of free XRIs in public pool
+	 * Pvt: Current number of free XRIs in private pool
+	 * Busy: Current number of outstanding XRIs
+	 * HWM: Current high watermark
+	 * pvt_empty: Incremented by 1 when IO submission fails (no xri)
+	 * pbl_empty: Incremented by 1 when all pbl_pool are empty during
+	 *            IO submission
+	 */
+	scnprintf(tmp, sizeof(tmp),
+		  "HWQ:  Pbl  Pvt Busy  HWM |  pvt_empty  pbl_empty ");
+	if (strlcat(buf, tmp, size) >= size)
+		return strnlen(buf, size);
+
+#ifdef LPFC_MXP_STAT
+	/*
+	 * MAXH: Max high watermark seen so far
+	 * above_lmt: Incremented by 1 if xri_owned > xri_limit during
+	 *            IO submission
+	 * below_lmt: Incremented by 1 if xri_owned <= xri_limit  during
+	 *            IO submission
+	 * locPbl_hit: Incremented by 1 if successfully get a batch of XRI from
+	 *             local pbl_pool
+	 * othPbl_hit: Incremented by 1 if successfully get a batch of XRI from
+	 *             other pbl_pool
+	 */
+	scnprintf(tmp, sizeof(tmp),
+		  "MAXH  above_lmt  below_lmt locPbl_hit othPbl_hit");
+	if (strlcat(buf, tmp, size) >= size)
+		return strnlen(buf, size);
+
+	/*
+	 * sPbl: snapshot of Pbl 15 sec after stat gets cleared
+	 * sPvt: snapshot of Pvt 15 sec after stat gets cleared
+	 * sBusy: snapshot of Busy 15 sec after stat gets cleared
+	 */
+	scnprintf(tmp, sizeof(tmp),
+		  " | sPbl sPvt sBusy");
+	if (strlcat(buf, tmp, size) >= size)
+		return strnlen(buf, size);
+#endif
+
+	scnprintf(tmp, sizeof(tmp), "\n");
+	if (strlcat(buf, tmp, size) >= size)
+		return strnlen(buf, size);
+
+	hwq_count = phba->cfg_hdw_queue;
+	for (i = 0; i < hwq_count; i++) {
+		qp = &phba->sli4_hba.hdwq[i];
+		multixri_pool = qp->p_multixri_pool;
+		if (!multixri_pool)
+			continue;
+		pbl_pool = &multixri_pool->pbl_pool;
+		pvt_pool = &multixri_pool->pvt_pool;
+		txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
+
+		scnprintf(tmp, sizeof(tmp),
+			  "%03d: %4d %4d %4d %4d | %10d %10d ",
+			  i, pbl_pool->count, pvt_pool->count,
+			  txcmplq_cnt, pvt_pool->high_watermark,
+			  qp->empty_io_bufs, multixri_pool->pbl_empty_count);
+		if (strlcat(buf, tmp, size) >= size)
+			break;
+
+#ifdef LPFC_MXP_STAT
+		scnprintf(tmp, sizeof(tmp),
+			  "%4d %10d %10d %10d %10d",
+			  multixri_pool->stat_max_hwm,
+			  multixri_pool->above_limit_count,
+			  multixri_pool->below_limit_count,
+			  multixri_pool->local_pbl_hit_count,
+			  multixri_pool->other_pbl_hit_count);
+		if (strlcat(buf, tmp, size) >= size)
+			break;
+
+		scnprintf(tmp, sizeof(tmp),
+			  " | %4d %4d %5d",
+			  multixri_pool->stat_pbl_count,
+			  multixri_pool->stat_pvt_count,
+			  multixri_pool->stat_busy_count);
+		if (strlcat(buf, tmp, size) >= size)
+			break;
+#endif
+
+		scnprintf(tmp, sizeof(tmp), "\n");
+		if (strlcat(buf, tmp, size) >= size)
+			break;
+	}
+	return strnlen(buf, size);
+}
+
+
+#ifdef LPFC_HDWQ_LOCK_STAT
+static int lpfc_debugfs_last_lock;
+
+/**
+ * lpfc_debugfs_lockstat_data - Dump Hardware Queue info to a buffer
+ * @phba: The HBA to gather host buffer info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the Hardware Queue info from the @phba to @buf up to
+ * @size number of bytes. A header that describes the current hdwq state will be
+ * dumped to @buf first and then info on each hdwq entry will be dumped to @buf
+ * until @size bytes have been dumped or all the hdwq info has been dumped.
+ *
+ * Notes:
+ * This routine will rotate through each configured Hardware Queue each
+ * time called.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_lockstat_data(struct lpfc_hba *phba, char *buf, int size)
+{
+	struct lpfc_sli4_hdw_queue *qp;
+	int len = 0;
+	int i;
+
+	if (phba->sli_rev != LPFC_SLI_REV4)
+		return 0;
+
+	if (!phba->sli4_hba.hdwq)
+		return 0;
+
+	for (i = 0; i < phba->cfg_hdw_queue; i++) {
+		if (len > (LPFC_HDWQINFO_SIZE - 100))
+			break;
+		qp = &phba->sli4_hba.hdwq[lpfc_debugfs_last_lock];
+
+		len += scnprintf(buf + len, size - len, "HdwQ %03d Lock ", i);
+		if (phba->cfg_xri_rebalancing) {
+			len += scnprintf(buf + len, size - len,
+					 "get_pvt:%d mv_pvt:%d "
+					 "mv2pub:%d mv2pvt:%d "
+					 "put_pvt:%d put_pub:%d wq:%d\n",
+					 qp->lock_conflict.alloc_pvt_pool,
+					 qp->lock_conflict.mv_from_pvt_pool,
+					 qp->lock_conflict.mv_to_pub_pool,
+					 qp->lock_conflict.mv_to_pvt_pool,
+					 qp->lock_conflict.free_pvt_pool,
+					 qp->lock_conflict.free_pub_pool,
+					 qp->lock_conflict.wq_access);
+		} else {
+			len += scnprintf(buf + len, size - len,
+					 "get:%d put:%d free:%d wq:%d\n",
+					 qp->lock_conflict.alloc_xri_get,
+					 qp->lock_conflict.alloc_xri_put,
+					 qp->lock_conflict.free_xri,
+					 qp->lock_conflict.wq_access);
+		}
+
+		lpfc_debugfs_last_lock++;
+		if (lpfc_debugfs_last_lock >= phba->cfg_hdw_queue)
+			lpfc_debugfs_last_lock = 0;
+	}
+
+	return len;
+}
+#endif
+
+static int lpfc_debugfs_last_hba_slim_off;
+
+/**
+ * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer
+ * @phba: The HBA to gather SLIM info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the current contents of HBA SLIM for the HBA associated
+ * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data.
+ *
+ * Notes:
+ * This routine will only dump up to 1024 bytes of data each time called and
+ * should be called multiple times to dump the entire HBA SLIM.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
+{
+	int len = 0;
+	int i, off;
+	uint32_t *ptr;
+	char *buffer;
+
+	buffer = kmalloc(1024, GFP_KERNEL);
+	if (!buffer)
+		return 0;
+
+	off = 0;
+	spin_lock_irq(&phba->hbalock);
+
+	len +=  scnprintf(buf+len, size-len, "HBA SLIM\n");
+	lpfc_memcpy_from_slim(buffer,
+		phba->MBslimaddr + lpfc_debugfs_last_hba_slim_off, 1024);
+
+	ptr = (uint32_t *)&buffer[0];
+	off = lpfc_debugfs_last_hba_slim_off;
+
+	/* Set it up for the next time */
+	lpfc_debugfs_last_hba_slim_off += 1024;
+	if (lpfc_debugfs_last_hba_slim_off >= 4096)
+		lpfc_debugfs_last_hba_slim_off = 0;
+
+	i = 1024;
+	while (i > 0) {
+		len +=  scnprintf(buf+len, size-len,
+		"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
+		off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
+		*(ptr+5), *(ptr+6), *(ptr+7));
+		ptr += 8;
+		i -= (8 * sizeof(uint32_t));
+		off += (8 * sizeof(uint32_t));
+	}
+
+	spin_unlock_irq(&phba->hbalock);
+	kfree(buffer);
+
+	return len;
+}
+
+/**
+ * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer
+ * @phba: The HBA to gather Host SLIM info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the current contents of host SLIM for the host associated
+ * with @phba to @buf up to @size bytes of data. The dump will contain the
+ * Mailbox, PCB, Rings, and Registers that are located in host memory.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
+{
+	int len = 0;
+	int i, off;
+	uint32_t word0, word1, word2, word3;
+	uint32_t *ptr;
+	struct lpfc_pgp *pgpp;
+	struct lpfc_sli *psli = &phba->sli;
+	struct lpfc_sli_ring *pring;
+
+	off = 0;
+	spin_lock_irq(&phba->hbalock);
+
+	len +=  scnprintf(buf+len, size-len, "SLIM Mailbox\n");
+	ptr = (uint32_t *)phba->slim2p.virt;
+	i = sizeof(MAILBOX_t);
+	while (i > 0) {
+		len +=  scnprintf(buf+len, size-len,
+		"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
+		off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
+		*(ptr+5), *(ptr+6), *(ptr+7));
+		ptr += 8;
+		i -= (8 * sizeof(uint32_t));
+		off += (8 * sizeof(uint32_t));
+	}
+
+	len +=  scnprintf(buf+len, size-len, "SLIM PCB\n");
+	ptr = (uint32_t *)phba->pcb;
+	i = sizeof(PCB_t);
+	while (i > 0) {
+		len +=  scnprintf(buf+len, size-len,
+		"%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
+		off, *ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
+		*(ptr+5), *(ptr+6), *(ptr+7));
+		ptr += 8;
+		i -= (8 * sizeof(uint32_t));
+		off += (8 * sizeof(uint32_t));
+	}
+
+	if (phba->sli_rev <= LPFC_SLI_REV3) {
+		for (i = 0; i < 4; i++) {
+			pgpp = &phba->port_gp[i];
+			pring = &psli->sli3_ring[i];
+			len +=  scnprintf(buf+len, size-len,
+					 "Ring %d: CMD GetInx:%d "
+					 "(Max:%d Next:%d "
+					 "Local:%d flg:x%x)  "
+					 "RSP PutInx:%d Max:%d\n",
+					 i, pgpp->cmdGetInx,
+					 pring->sli.sli3.numCiocb,
+					 pring->sli.sli3.next_cmdidx,
+					 pring->sli.sli3.local_getidx,
+					 pring->flag, pgpp->rspPutInx,
+					 pring->sli.sli3.numRiocb);
+		}
+
+		word0 = readl(phba->HAregaddr);
+		word1 = readl(phba->CAregaddr);
+		word2 = readl(phba->HSregaddr);
+		word3 = readl(phba->HCregaddr);
+		len +=  scnprintf(buf+len, size-len, "HA:%08x CA:%08x HS:%08x "
+				 "HC:%08x\n", word0, word1, word2, word3);
+	}
+	spin_unlock_irq(&phba->hbalock);
+	return len;
+}
+
+/**
+ * lpfc_debugfs_nodelist_data - Dump target node list to a buffer
+ * @vport: The vport to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the current target node list associated with @vport to
+ * @buf up to @size bytes of data. Each node entry in the dump will contain a
+ * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
+{
+	int len = 0;
+	int i, iocnt, outio, cnt;
+	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+	struct lpfc_hba  *phba = vport->phba;
+	struct lpfc_nodelist *ndlp;
+	unsigned char *statep;
+	struct nvme_fc_local_port *localport;
+	struct nvme_fc_remote_port *nrport = NULL;
+	struct lpfc_nvme_rport *rport;
+
+	cnt = (LPFC_NODELIST_SIZE / LPFC_NODELIST_ENTRY_SIZE);
+	outio = 0;
+
+	len += scnprintf(buf+len, size-len, "\nFCP Nodelist Entries ...\n");
+	spin_lock_irq(shost->host_lock);
+	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+		iocnt = 0;
+		if (!cnt) {
+			len +=  scnprintf(buf+len, size-len,
+				"Missing Nodelist Entries\n");
+			break;
+		}
+		cnt--;
+		switch (ndlp->nlp_state) {
+		case NLP_STE_UNUSED_NODE:
+			statep = "UNUSED";
+			break;
+		case NLP_STE_PLOGI_ISSUE:
+			statep = "PLOGI ";
+			break;
+		case NLP_STE_ADISC_ISSUE:
+			statep = "ADISC ";
+			break;
+		case NLP_STE_REG_LOGIN_ISSUE:
+			statep = "REGLOG";
+			break;
+		case NLP_STE_PRLI_ISSUE:
+			statep = "PRLI  ";
+			break;
+		case NLP_STE_LOGO_ISSUE:
+			statep = "LOGO  ";
+			break;
+		case NLP_STE_UNMAPPED_NODE:
+			statep = "UNMAP ";
+			iocnt = 1;
+			break;
+		case NLP_STE_MAPPED_NODE:
+			statep = "MAPPED";
+			iocnt = 1;
+			break;
+		case NLP_STE_NPR_NODE:
+			statep = "NPR   ";
+			break;
+		default:
+			statep = "UNKNOWN";
+		}
+		len += scnprintf(buf+len, size-len, "%s DID:x%06x ",
+				statep, ndlp->nlp_DID);
+		len += scnprintf(buf+len, size-len,
+				"WWPN x%016llx ",
+				wwn_to_u64(ndlp->nlp_portname.u.wwn));
+		len += scnprintf(buf+len, size-len,
+				"WWNN x%016llx ",
+				wwn_to_u64(ndlp->nlp_nodename.u.wwn));
+		len += scnprintf(buf+len, size-len, "RPI:x%04x ",
+				 ndlp->nlp_rpi);
+		len +=  scnprintf(buf+len, size-len, "flag:x%08x ",
+			ndlp->nlp_flag);
+		if (!ndlp->nlp_type)
+			len += scnprintf(buf+len, size-len, "UNKNOWN_TYPE ");
+		if (ndlp->nlp_type & NLP_FC_NODE)
+			len += scnprintf(buf+len, size-len, "FC_NODE ");
+		if (ndlp->nlp_type & NLP_FABRIC) {
+			len += scnprintf(buf+len, size-len, "FABRIC ");
+			iocnt = 0;
+		}
+		if (ndlp->nlp_type & NLP_FCP_TARGET)
+			len += scnprintf(buf+len, size-len, "FCP_TGT sid:%d ",
+				ndlp->nlp_sid);
+		if (ndlp->nlp_type & NLP_FCP_INITIATOR)
+			len += scnprintf(buf+len, size-len, "FCP_INITIATOR ");
+		if (ndlp->nlp_type & NLP_NVME_TARGET)
+			len += scnprintf(buf + len,
+					size - len, "NVME_TGT sid:%d ",
+					NLP_NO_SID);
+		if (ndlp->nlp_type & NLP_NVME_INITIATOR)
+			len += scnprintf(buf + len,
+					size - len, "NVME_INITIATOR ");
+		len += scnprintf(buf+len, size-len, "refcnt:%d",
+			kref_read(&ndlp->kref));
+		if (iocnt) {
+			i = atomic_read(&ndlp->cmd_pending);
+			len += scnprintf(buf + len, size - len,
+					" OutIO:x%x Qdepth x%x",
+					i, ndlp->cmd_qdepth);
+			outio += i;
+		}
+		len += scnprintf(buf+len, size-len, " xpt:x%x",
+				 ndlp->fc4_xpt_flags);
+		if (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)
+			len += scnprintf(buf+len, size-len, " defer:%x",
+					 ndlp->nlp_defer_did);
+		len +=  scnprintf(buf+len, size-len, "\n");
+	}
+	spin_unlock_irq(shost->host_lock);
+
+	len += scnprintf(buf + len, size - len,
+			"\nOutstanding IO x%x\n",  outio);
+
+	if (phba->nvmet_support && phba->targetport && (vport == phba->pport)) {
+		len += scnprintf(buf + len, size - len,
+				"\nNVME Targetport Entry ...\n");
+
+		/* Port state is only one of two values for now. */
+		if (phba->targetport->port_id)
+			statep = "REGISTERED";
+		else
+			statep = "INIT";
+		len += scnprintf(buf + len, size - len,
+				"TGT WWNN x%llx WWPN x%llx State %s\n",
+				wwn_to_u64(vport->fc_nodename.u.wwn),
+				wwn_to_u64(vport->fc_portname.u.wwn),
+				statep);
+		len += scnprintf(buf + len, size - len,
+				"    Targetport DID x%06x\n",
+				phba->targetport->port_id);
+		goto out_exit;
+	}
+
+	len += scnprintf(buf + len, size - len,
+				"\nNVME Lport/Rport Entries ...\n");
+
+	localport = vport->localport;
+	if (!localport)
+		goto out_exit;
+
+	spin_lock_irq(shost->host_lock);
+
+	/* Port state is only one of two values for now. */
+	if (localport->port_id)
+		statep = "ONLINE";
+	else
+		statep = "UNKNOWN ";
+
+	len += scnprintf(buf + len, size - len,
+			"Lport DID x%06x PortState %s\n",
+			localport->port_id, statep);
+
+	len += scnprintf(buf + len, size - len, "\tRport List:\n");
+	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+		/* local short-hand pointer. */
+		spin_lock(&ndlp->lock);
+		rport = lpfc_ndlp_get_nrport(ndlp);
+		if (rport)
+			nrport = rport->remoteport;
+		else
+			nrport = NULL;
+		spin_unlock(&ndlp->lock);
+		if (!nrport)
+			continue;
+
+		/* Port state is only one of two values for now. */
+		switch (nrport->port_state) {
+		case FC_OBJSTATE_ONLINE:
+			statep = "ONLINE";
+			break;
+		case FC_OBJSTATE_UNKNOWN:
+			statep = "UNKNOWN ";
+			break;
+		default:
+			statep = "UNSUPPORTED";
+			break;
+		}
+
+		/* Tab in to show lport ownership. */
+		len += scnprintf(buf + len, size - len,
+				"\t%s Port ID:x%06x ",
+				statep, nrport->port_id);
+		len += scnprintf(buf + len, size - len, "WWPN x%llx ",
+				nrport->port_name);
+		len += scnprintf(buf + len, size - len, "WWNN x%llx ",
+				nrport->node_name);
+
+		/* An NVME rport can have multiple roles. */
+		if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR)
+			len +=  scnprintf(buf + len, size - len,
+					 "INITIATOR ");
+		if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET)
+			len +=  scnprintf(buf + len, size - len,
+					 "TARGET ");
+		if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY)
+			len +=  scnprintf(buf + len, size - len,
+					 "DISCSRVC ");
+		if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
+					  FC_PORT_ROLE_NVME_TARGET |
+					  FC_PORT_ROLE_NVME_DISCOVERY))
+			len +=  scnprintf(buf + len, size - len,
+					 "UNKNOWN ROLE x%x",
+					 nrport->port_role);
+		/* Terminate the string. */
+		len +=  scnprintf(buf + len, size - len, "\n");
+	}
+
+	spin_unlock_irq(shost->host_lock);
+ out_exit:
+	return len;
+}
+
+/**
+ * lpfc_debugfs_nvmestat_data - Dump target node list to a buffer
+ * @vport: The vport to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the NVME statistics associated with @vport
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_nvmestat_data(struct lpfc_vport *vport, char *buf, int size)
+{
+	struct lpfc_hba   *phba = vport->phba;
+	struct lpfc_nvmet_tgtport *tgtp;
+	struct lpfc_async_xchg_ctx *ctxp, *next_ctxp;
+	struct nvme_fc_local_port *localport;
+	struct lpfc_fc4_ctrl_stat *cstat;
+	struct lpfc_nvme_lport *lport;
+	uint64_t data1, data2, data3;
+	uint64_t tot, totin, totout;
+	int cnt, i;
+	int len = 0;
+
+	if (phba->nvmet_support) {
+		if (!phba->targetport)
+			return len;
+		tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
+		len += scnprintf(buf + len, size - len,
+				"\nNVME Targetport Statistics\n");
+
+		len += scnprintf(buf + len, size - len,
+				"LS: Rcv %08x Drop %08x Abort %08x\n",
+				atomic_read(&tgtp->rcv_ls_req_in),
+				atomic_read(&tgtp->rcv_ls_req_drop),
+				atomic_read(&tgtp->xmt_ls_abort));
+		if (atomic_read(&tgtp->rcv_ls_req_in) !=
+		    atomic_read(&tgtp->rcv_ls_req_out)) {
+			len += scnprintf(buf + len, size - len,
+					"Rcv LS: in %08x != out %08x\n",
+					atomic_read(&tgtp->rcv_ls_req_in),
+					atomic_read(&tgtp->rcv_ls_req_out));
+		}
+
+		len += scnprintf(buf + len, size - len,
+				"LS: Xmt %08x Drop %08x Cmpl %08x\n",
+				atomic_read(&tgtp->xmt_ls_rsp),
+				atomic_read(&tgtp->xmt_ls_drop),
+				atomic_read(&tgtp->xmt_ls_rsp_cmpl));
+
+		len += scnprintf(buf + len, size - len,
+				"LS: RSP Abort %08x xb %08x Err %08x\n",
+				atomic_read(&tgtp->xmt_ls_rsp_aborted),
+				atomic_read(&tgtp->xmt_ls_rsp_xb_set),
+				atomic_read(&tgtp->xmt_ls_rsp_error));
+
+		len += scnprintf(buf + len, size - len,
+				"FCP: Rcv %08x Defer %08x Release %08x "
+				"Drop %08x\n",
+				atomic_read(&tgtp->rcv_fcp_cmd_in),
+				atomic_read(&tgtp->rcv_fcp_cmd_defer),
+				atomic_read(&tgtp->xmt_fcp_release),
+				atomic_read(&tgtp->rcv_fcp_cmd_drop));
+
+		if (atomic_read(&tgtp->rcv_fcp_cmd_in) !=
+		    atomic_read(&tgtp->rcv_fcp_cmd_out)) {
+			len += scnprintf(buf + len, size - len,
+					"Rcv FCP: in %08x != out %08x\n",
+					atomic_read(&tgtp->rcv_fcp_cmd_in),
+					atomic_read(&tgtp->rcv_fcp_cmd_out));
+		}
+
+		len += scnprintf(buf + len, size - len,
+				"FCP Rsp: read %08x readrsp %08x "
+				"write %08x rsp %08x\n",
+				atomic_read(&tgtp->xmt_fcp_read),
+				atomic_read(&tgtp->xmt_fcp_read_rsp),
+				atomic_read(&tgtp->xmt_fcp_write),
+				atomic_read(&tgtp->xmt_fcp_rsp));
+
+		len += scnprintf(buf + len, size - len,
+				"FCP Rsp Cmpl: %08x err %08x drop %08x\n",
+				atomic_read(&tgtp->xmt_fcp_rsp_cmpl),
+				atomic_read(&tgtp->xmt_fcp_rsp_error),
+				atomic_read(&tgtp->xmt_fcp_rsp_drop));
+
+		len += scnprintf(buf + len, size - len,
+				"FCP Rsp Abort: %08x xb %08x xricqe  %08x\n",
+				atomic_read(&tgtp->xmt_fcp_rsp_aborted),
+				atomic_read(&tgtp->xmt_fcp_rsp_xb_set),
+				atomic_read(&tgtp->xmt_fcp_xri_abort_cqe));
+
+		len += scnprintf(buf + len, size - len,
+				"ABORT: Xmt %08x Cmpl %08x\n",
+				atomic_read(&tgtp->xmt_fcp_abort),
+				atomic_read(&tgtp->xmt_fcp_abort_cmpl));
+
+		len += scnprintf(buf + len, size - len,
+				"ABORT: Sol %08x  Usol %08x Err %08x Cmpl %08x",
+				atomic_read(&tgtp->xmt_abort_sol),
+				atomic_read(&tgtp->xmt_abort_unsol),
+				atomic_read(&tgtp->xmt_abort_rsp),
+				atomic_read(&tgtp->xmt_abort_rsp_error));
+
+		len +=  scnprintf(buf + len, size - len, "\n");
+
+		cnt = 0;
+		spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
+		list_for_each_entry_safe(ctxp, next_ctxp,
+				&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
+				list) {
+			cnt++;
+		}
+		spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
+		if (cnt) {
+			len += scnprintf(buf + len, size - len,
+					"ABORT: %d ctx entries\n", cnt);
+			spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
+			list_for_each_entry_safe(ctxp, next_ctxp,
+				    &phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
+				    list) {
+				if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ))
+					break;
+				len += scnprintf(buf + len, size - len,
+						"Entry: oxid %x state %x "
+						"flag %x\n",
+						ctxp->oxid, ctxp->state,
+						ctxp->flag);
+			}
+			spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
+		}
+
+		/* Calculate outstanding IOs */
+		tot = atomic_read(&tgtp->rcv_fcp_cmd_drop);
+		tot += atomic_read(&tgtp->xmt_fcp_release);
+		tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot;
+
+		len += scnprintf(buf + len, size - len,
+				"IO_CTX: %08x  WAIT: cur %08x tot %08x\n"
+				"CTX Outstanding %08llx\n",
+				phba->sli4_hba.nvmet_xri_cnt,
+				phba->sli4_hba.nvmet_io_wait_cnt,
+				phba->sli4_hba.nvmet_io_wait_total,
+				tot);
+	} else {
+		if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
+			return len;
+
+		localport = vport->localport;
+		if (!localport)
+			return len;
+		lport = (struct lpfc_nvme_lport *)localport->private;
+		if (!lport)
+			return len;
+
+		len += scnprintf(buf + len, size - len,
+				"\nNVME HDWQ Statistics\n");
+
+		len += scnprintf(buf + len, size - len,
+				"LS: Xmt %016x Cmpl %016x\n",
+				atomic_read(&lport->fc4NvmeLsRequests),
+				atomic_read(&lport->fc4NvmeLsCmpls));
+
+		totin = 0;
+		totout = 0;
+		for (i = 0; i < phba->cfg_hdw_queue; i++) {
+			cstat = &phba->sli4_hba.hdwq[i].nvme_cstat;
+			tot = cstat->io_cmpls;
+			totin += tot;
+			data1 = cstat->input_requests;
+			data2 = cstat->output_requests;
+			data3 = cstat->control_requests;
+			totout += (data1 + data2 + data3);
+
+			/* Limit to 32, debugfs display buffer limitation */
+			if (i >= 32)
+				continue;
+
+			len += scnprintf(buf + len, PAGE_SIZE - len,
+					"HDWQ (%d): Rd %016llx Wr %016llx "
+					"IO %016llx ",
+					i, data1, data2, data3);
+			len += scnprintf(buf + len, PAGE_SIZE - len,
+					"Cmpl %016llx OutIO %016llx\n",
+					tot, ((data1 + data2 + data3) - tot));
+		}
+		len += scnprintf(buf + len, PAGE_SIZE - len,
+				"Total FCP Cmpl %016llx Issue %016llx "
+				"OutIO %016llx\n",
+				totin, totout, totout - totin);
+
+		len += scnprintf(buf + len, size - len,
+				"LS Xmt Err: Abrt %08x Err %08x  "
+				"Cmpl Err: xb %08x Err %08x\n",
+				atomic_read(&lport->xmt_ls_abort),
+				atomic_read(&lport->xmt_ls_err),
+				atomic_read(&lport->cmpl_ls_xb),
+				atomic_read(&lport->cmpl_ls_err));
+
+		len += scnprintf(buf + len, size - len,
+				"FCP Xmt Err: noxri %06x nondlp %06x "
+				"qdepth %06x wqerr %06x err %06x Abrt %06x\n",
+				atomic_read(&lport->xmt_fcp_noxri),
+				atomic_read(&lport->xmt_fcp_bad_ndlp),
+				atomic_read(&lport->xmt_fcp_qdepth),
+				atomic_read(&lport->xmt_fcp_wqerr),
+				atomic_read(&lport->xmt_fcp_err),
+				atomic_read(&lport->xmt_fcp_abort));
+
+		len += scnprintf(buf + len, size - len,
+				"FCP Cmpl Err: xb %08x Err %08x\n",
+				atomic_read(&lport->cmpl_fcp_xb),
+				atomic_read(&lport->cmpl_fcp_err));
+
+	}
+
+	return len;
+}
+
+/**
+ * lpfc_debugfs_scsistat_data - Dump target node list to a buffer
+ * @vport: The vport to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the SCSI statistics associated with @vport
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_scsistat_data(struct lpfc_vport *vport, char *buf, int size)
+{
+	int len;
+	struct lpfc_hba *phba = vport->phba;
+	struct lpfc_fc4_ctrl_stat *cstat;
+	u64 data1, data2, data3;
+	u64 tot, totin, totout;
+	int i;
+	char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0};
+
+	if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ||
+	    (phba->sli_rev != LPFC_SLI_REV4))
+		return 0;
+
+	scnprintf(buf, size, "SCSI HDWQ Statistics\n");
+
+	totin = 0;
+	totout = 0;
+	for (i = 0; i < phba->cfg_hdw_queue; i++) {
+		cstat = &phba->sli4_hba.hdwq[i].scsi_cstat;
+		tot = cstat->io_cmpls;
+		totin += tot;
+		data1 = cstat->input_requests;
+		data2 = cstat->output_requests;
+		data3 = cstat->control_requests;
+		totout += (data1 + data2 + data3);
+
+		scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx "
+			  "IO %016llx ", i, data1, data2, data3);
+		if (strlcat(buf, tmp, size) >= size)
+			goto buffer_done;
+
+		scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n",
+			  tot, ((data1 + data2 + data3) - tot));
+		if (strlcat(buf, tmp, size) >= size)
+			goto buffer_done;
+	}
+	scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx "
+		  "OutIO %016llx\n", totin, totout, totout - totin);
+	strlcat(buf, tmp, size);
+
+buffer_done:
+	len = strnlen(buf, size);
+
+	return len;
+}
+
+void
+lpfc_io_ktime(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_cmd)
+{
+	uint64_t seg1, seg2, seg3, seg4;
+	uint64_t segsum;
+
+	if (!lpfc_cmd->ts_last_cmd ||
+	    !lpfc_cmd->ts_cmd_start ||
+	    !lpfc_cmd->ts_cmd_wqput ||
+	    !lpfc_cmd->ts_isr_cmpl ||
+	    !lpfc_cmd->ts_data_io)
+		return;
+
+	if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_cmd_start)
+		return;
+	if (lpfc_cmd->ts_cmd_start < lpfc_cmd->ts_last_cmd)
+		return;
+	if (lpfc_cmd->ts_cmd_wqput < lpfc_cmd->ts_cmd_start)
+		return;
+	if (lpfc_cmd->ts_isr_cmpl < lpfc_cmd->ts_cmd_wqput)
+		return;
+	if (lpfc_cmd->ts_data_io < lpfc_cmd->ts_isr_cmpl)
+		return;
+	/*
+	 * Segment 1 - Time from Last FCP command cmpl is handed
+	 * off to NVME Layer to start of next command.
+	 * Segment 2 - Time from Driver receives a IO cmd start
+	 * from NVME Layer to WQ put is done on IO cmd.
+	 * Segment 3 - Time from Driver WQ put is done on IO cmd
+	 * to MSI-X ISR for IO cmpl.
+	 * Segment 4 - Time from MSI-X ISR for IO cmpl to when
+	 * cmpl is handled off to the NVME Layer.
+	 */
+	seg1 = lpfc_cmd->ts_cmd_start - lpfc_cmd->ts_last_cmd;
+	if (seg1 > 5000000)  /* 5 ms - for sequential IOs only */
+		seg1 = 0;
+
+	/* Calculate times relative to start of IO */
+	seg2 = (lpfc_cmd->ts_cmd_wqput - lpfc_cmd->ts_cmd_start);
+	segsum = seg2;
+	seg3 = lpfc_cmd->ts_isr_cmpl - lpfc_cmd->ts_cmd_start;
+	if (segsum > seg3)
+		return;
+	seg3 -= segsum;
+	segsum += seg3;
+
+	seg4 = lpfc_cmd->ts_data_io - lpfc_cmd->ts_cmd_start;
+	if (segsum > seg4)
+		return;
+	seg4 -= segsum;
+
+	phba->ktime_data_samples++;
+	phba->ktime_seg1_total += seg1;
+	if (seg1 < phba->ktime_seg1_min)
+		phba->ktime_seg1_min = seg1;
+	else if (seg1 > phba->ktime_seg1_max)
+		phba->ktime_seg1_max = seg1;
+	phba->ktime_seg2_total += seg2;
+	if (seg2 < phba->ktime_seg2_min)
+		phba->ktime_seg2_min = seg2;
+	else if (seg2 > phba->ktime_seg2_max)
+		phba->ktime_seg2_max = seg2;
+	phba->ktime_seg3_total += seg3;
+	if (seg3 < phba->ktime_seg3_min)
+		phba->ktime_seg3_min = seg3;
+	else if (seg3 > phba->ktime_seg3_max)
+		phba->ktime_seg3_max = seg3;
+	phba->ktime_seg4_total += seg4;
+	if (seg4 < phba->ktime_seg4_min)
+		phba->ktime_seg4_min = seg4;
+	else if (seg4 > phba->ktime_seg4_max)
+		phba->ktime_seg4_max = seg4;
+
+	lpfc_cmd->ts_last_cmd = 0;
+	lpfc_cmd->ts_cmd_start = 0;
+	lpfc_cmd->ts_cmd_wqput  = 0;
+	lpfc_cmd->ts_isr_cmpl = 0;
+	lpfc_cmd->ts_data_io = 0;
+}
+
+/**
+ * lpfc_debugfs_ioktime_data - Dump target node list to a buffer
+ * @vport: The vport to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the NVME statistics associated with @vport
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_ioktime_data(struct lpfc_vport *vport, char *buf, int size)
+{
+	struct lpfc_hba   *phba = vport->phba;
+	int len = 0;
+
+	if (phba->nvmet_support == 0) {
+		/* Initiator */
+		len += scnprintf(buf + len, PAGE_SIZE - len,
+				"ktime %s: Total Samples: %lld\n",
+				(phba->ktime_on ?  "Enabled" : "Disabled"),
+				phba->ktime_data_samples);
+		if (phba->ktime_data_samples == 0)
+			return len;
+
+		len += scnprintf(
+			buf + len, PAGE_SIZE - len,
+			"Segment 1: Last Cmd cmpl "
+			"done -to- Start of next Cmd (in driver)\n");
+		len += scnprintf(
+			buf + len, PAGE_SIZE - len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg1_total,
+				phba->ktime_data_samples),
+			phba->ktime_seg1_min,
+			phba->ktime_seg1_max);
+		len += scnprintf(
+			buf + len, PAGE_SIZE - len,
+			"Segment 2: Driver start of Cmd "
+			"-to- Firmware WQ doorbell\n");
+		len += scnprintf(
+			buf + len, PAGE_SIZE - len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg2_total,
+				phba->ktime_data_samples),
+			phba->ktime_seg2_min,
+			phba->ktime_seg2_max);
+		len += scnprintf(
+			buf + len, PAGE_SIZE - len,
+			"Segment 3: Firmware WQ doorbell -to- "
+			"MSI-X ISR cmpl\n");
+		len += scnprintf(
+			buf + len, PAGE_SIZE - len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg3_total,
+				phba->ktime_data_samples),
+			phba->ktime_seg3_min,
+			phba->ktime_seg3_max);
+		len += scnprintf(
+			buf + len, PAGE_SIZE - len,
+			"Segment 4: MSI-X ISR cmpl -to- "
+			"Cmd cmpl done\n");
+		len += scnprintf(
+			buf + len, PAGE_SIZE - len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg4_total,
+				phba->ktime_data_samples),
+			phba->ktime_seg4_min,
+			phba->ktime_seg4_max);
+		len += scnprintf(
+			buf + len, PAGE_SIZE - len,
+			"Total IO avg time: %08lld\n",
+			div_u64(phba->ktime_seg1_total +
+			phba->ktime_seg2_total  +
+			phba->ktime_seg3_total +
+			phba->ktime_seg4_total,
+			phba->ktime_data_samples));
+		return len;
+	}
+
+	/* NVME Target */
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"ktime %s: Total Samples: %lld %lld\n",
+			(phba->ktime_on ? "Enabled" : "Disabled"),
+			phba->ktime_data_samples,
+			phba->ktime_status_samples);
+	if (phba->ktime_data_samples == 0)
+		return len;
+
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"Segment 1: MSI-X ISR Rcv cmd -to- "
+			"cmd pass to NVME Layer\n");
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg1_total,
+				phba->ktime_data_samples),
+			phba->ktime_seg1_min,
+			phba->ktime_seg1_max);
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"Segment 2: cmd pass to NVME Layer- "
+			"-to- Driver rcv cmd OP (action)\n");
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg2_total,
+				phba->ktime_data_samples),
+			phba->ktime_seg2_min,
+			phba->ktime_seg2_max);
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"Segment 3: Driver rcv cmd OP -to- "
+			"Firmware WQ doorbell: cmd\n");
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg3_total,
+				phba->ktime_data_samples),
+			phba->ktime_seg3_min,
+			phba->ktime_seg3_max);
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"Segment 4: Firmware WQ doorbell: cmd "
+			"-to- MSI-X ISR for cmd cmpl\n");
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg4_total,
+				phba->ktime_data_samples),
+			phba->ktime_seg4_min,
+			phba->ktime_seg4_max);
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"Segment 5: MSI-X ISR for cmd cmpl "
+			"-to- NVME layer passed cmd done\n");
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg5_total,
+				phba->ktime_data_samples),
+			phba->ktime_seg5_min,
+			phba->ktime_seg5_max);
+
+	if (phba->ktime_status_samples == 0) {
+		len += scnprintf(buf + len, PAGE_SIZE-len,
+				"Total: cmd received by MSI-X ISR "
+				"-to- cmd completed on wire\n");
+		len += scnprintf(buf + len, PAGE_SIZE-len,
+				"avg:%08lld min:%08lld "
+				"max %08lld\n",
+				div_u64(phba->ktime_seg10_total,
+					phba->ktime_data_samples),
+				phba->ktime_seg10_min,
+				phba->ktime_seg10_max);
+		return len;
+	}
+
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"Segment 6: NVME layer passed cmd done "
+			"-to- Driver rcv rsp status OP\n");
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg6_total,
+				phba->ktime_status_samples),
+			phba->ktime_seg6_min,
+			phba->ktime_seg6_max);
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"Segment 7: Driver rcv rsp status OP "
+			"-to- Firmware WQ doorbell: status\n");
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg7_total,
+				phba->ktime_status_samples),
+			phba->ktime_seg7_min,
+			phba->ktime_seg7_max);
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"Segment 8: Firmware WQ doorbell: status"
+			" -to- MSI-X ISR for status cmpl\n");
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg8_total,
+				phba->ktime_status_samples),
+			phba->ktime_seg8_min,
+			phba->ktime_seg8_max);
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"Segment 9: MSI-X ISR for status cmpl  "
+			"-to- NVME layer passed status done\n");
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg9_total,
+				phba->ktime_status_samples),
+			phba->ktime_seg9_min,
+			phba->ktime_seg9_max);
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"Total: cmd received by MSI-X ISR -to- "
+			"cmd completed on wire\n");
+	len += scnprintf(buf + len, PAGE_SIZE-len,
+			"avg:%08lld min:%08lld max %08lld\n",
+			div_u64(phba->ktime_seg10_total,
+				phba->ktime_status_samples),
+			phba->ktime_seg10_min,
+			phba->ktime_seg10_max);
+	return len;
+}
+
+/**
+ * lpfc_debugfs_nvmeio_trc_data - Dump NVME IO trace list to a buffer
+ * @phba: The phba to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the NVME IO trace associated with @phba
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_nvmeio_trc_data(struct lpfc_hba *phba, char *buf, int size)
+{
+	struct lpfc_debugfs_nvmeio_trc *dtp;
+	int i, state, index, skip;
+	int len = 0;
+
+	state = phba->nvmeio_trc_on;
+
+	index = (atomic_read(&phba->nvmeio_trc_cnt) + 1) &
+		(phba->nvmeio_trc_size - 1);
+	skip = phba->nvmeio_trc_output_idx;
+
+	len += scnprintf(buf + len, size - len,
+			"%s IO Trace %s: next_idx %d skip %d size %d\n",
+			(phba->nvmet_support ? "NVME" : "NVMET"),
+			(state ? "Enabled" : "Disabled"),
+			index, skip, phba->nvmeio_trc_size);
+
+	if (!phba->nvmeio_trc || state)
+		return len;
+
+	/* trace MUST bhe off to continue */
+
+	for (i = index; i < phba->nvmeio_trc_size; i++) {
+		if (skip) {
+			skip--;
+			continue;
+		}
+		dtp = phba->nvmeio_trc + i;
+		phba->nvmeio_trc_output_idx++;
+
+		if (!dtp->fmt)
+			continue;
+
+		len +=  scnprintf(buf + len, size - len, dtp->fmt,
+			dtp->data1, dtp->data2, dtp->data3);
+
+		if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
+			phba->nvmeio_trc_output_idx = 0;
+			len += scnprintf(buf + len, size - len,
+					"Trace Complete\n");
+			goto out;
+		}
+
+		if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
+			len += scnprintf(buf + len, size - len,
+					"Trace Continue (%d of %d)\n",
+					phba->nvmeio_trc_output_idx,
+					phba->nvmeio_trc_size);
+			goto out;
+		}
+	}
+	for (i = 0; i < index; i++) {
+		if (skip) {
+			skip--;
+			continue;
+		}
+		dtp = phba->nvmeio_trc + i;
+		phba->nvmeio_trc_output_idx++;
+
+		if (!dtp->fmt)
+			continue;
+
+		len +=  scnprintf(buf + len, size - len, dtp->fmt,
+			dtp->data1, dtp->data2, dtp->data3);
+
+		if (phba->nvmeio_trc_output_idx >= phba->nvmeio_trc_size) {
+			phba->nvmeio_trc_output_idx = 0;
+			len += scnprintf(buf + len, size - len,
+					"Trace Complete\n");
+			goto out;
+		}
+
+		if (len >= (size - LPFC_DEBUG_OUT_LINE_SZ)) {
+			len += scnprintf(buf + len, size - len,
+					"Trace Continue (%d of %d)\n",
+					phba->nvmeio_trc_output_idx,
+					phba->nvmeio_trc_size);
+			goto out;
+		}
+	}
+
+	len += scnprintf(buf + len, size - len,
+			"Trace Done\n");
+out:
+	return len;
+}
+
+/**
+ * lpfc_debugfs_hdwqstat_data - Dump I/O stats to a buffer
+ * @vport: The vport to gather target node info from.
+ * @buf: The buffer to dump log into.
+ * @size: The maximum amount of data to process.
+ *
+ * Description:
+ * This routine dumps the NVME + SCSI statistics associated with @vport
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into @buf and will
+ * not exceed @size.
+ **/
+static int
+lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size)
+{
+	struct lpfc_hba   *phba = vport->phba;
+	struct lpfc_hdwq_stat *c_stat;
+	int i, j, len;
+	uint32_t tot_xmt;
+	uint32_t tot_rcv;
+	uint32_t tot_cmpl;
+	char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0};
+
+	scnprintf(tmp, sizeof(tmp), "HDWQ Stats:\n\n");
+	if (strlcat(buf, tmp, size) >= size)
+		goto buffer_done;
+
+	scnprintf(tmp, sizeof(tmp), "(NVME Accounting: %s) ",
+		  (phba->hdwqstat_on &
+		  (LPFC_CHECK_NVME_IO | LPFC_CHECK_NVMET_IO) ?
+		  "Enabled" : "Disabled"));
+	if (strlcat(buf, tmp, size) >= size)
+		goto buffer_done;
+
+	scnprintf(tmp, sizeof(tmp), "(SCSI Accounting: %s) ",
+		  (phba->hdwqstat_on & LPFC_CHECK_SCSI_IO ?
+		  "Enabled" : "Disabled"));
+	if (strlcat(buf, tmp, size) >= size)
+		goto buffer_done;
+
+	scnprintf(tmp, sizeof(tmp), "\n\n");
+	if (strlcat(buf, tmp, size) >= size)
+		goto buffer_done;
+
+	for (i = 0; i < phba->cfg_hdw_queue; i++) {
+		tot_rcv = 0;
+		tot_xmt = 0;
+		tot_cmpl = 0;
+
+		for_each_present_cpu(j) {
+			c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, j);
+
+			/* Only display for this HDWQ */
+			if (i != c_stat->hdwq_no)
+				continue;
+
+			/* Only display non-zero counters */
+			if (!c_stat->xmt_io && !c_stat->cmpl_io &&
+			    !c_stat->rcv_io)
+				continue;
+
+			if (!tot_xmt && !tot_cmpl && !tot_rcv) {
+				/* Print HDWQ string only the first time */
+				scnprintf(tmp, sizeof(tmp), "[HDWQ %d]:\t", i);
+				if (strlcat(buf, tmp, size) >= size)
+					goto buffer_done;
+			}
+
+			tot_xmt += c_stat->xmt_io;
+			tot_cmpl += c_stat->cmpl_io;
+			if (phba->nvmet_support)
+				tot_rcv += c_stat->rcv_io;
+
+			scnprintf(tmp, sizeof(tmp), "| [CPU %d]: ", j);
+			if (strlcat(buf, tmp, size) >= size)
+				goto buffer_done;
+
+			if (phba->nvmet_support) {
+				scnprintf(tmp, sizeof(tmp),
+					  "XMT 0x%x CMPL 0x%x RCV 0x%x |",
+					  c_stat->xmt_io, c_stat->cmpl_io,
+					  c_stat->rcv_io);
+				if (strlcat(buf, tmp, size) >= size)
+					goto buffer_done;
+			} else {
+				scnprintf(tmp, sizeof(tmp),
+					  "XMT 0x%x CMPL 0x%x |",
+					  c_stat->xmt_io, c_stat->cmpl_io);
+				if (strlcat(buf, tmp, size) >= size)
+					goto buffer_done;
+			}
+		}
+
+		/* Check if nothing to display */
+		if (!tot_xmt && !tot_cmpl && !tot_rcv)
+			continue;
+
+		scnprintf(tmp, sizeof(tmp), "\t->\t[HDWQ Total: ");
+		if (strlcat(buf, tmp, size) >= size)
+			goto buffer_done;
+
+		if (phba->nvmet_support) {
+			scnprintf(tmp, sizeof(tmp),
+				  "XMT 0x%x CMPL 0x%x RCV 0x%x]\n\n",
+				  tot_xmt, tot_cmpl, tot_rcv);
+			if (strlcat(buf, tmp, size) >= size)
+				goto buffer_done;
+		} else {
+			scnprintf(tmp, sizeof(tmp),
+				  "XMT 0x%x CMPL 0x%x]\n\n",
+				  tot_xmt, tot_cmpl);
+			if (strlcat(buf, tmp, size) >= size)
+				goto buffer_done;
+		}
+	}
+
+buffer_done:
+	len = strnlen(buf, size);
+	return len;
+}
+
+#endif
+
+/**
+ * lpfc_debugfs_disc_trc - Store discovery trace log
+ * @vport: The vport to associate this trace string with for retrieval.
+ * @mask: Log entry classification.
+ * @fmt: Format string to be displayed when dumping the log.
+ * @data1: 1st data parameter to be applied to @fmt.
+ * @data2: 2nd data parameter to be applied to @fmt.
+ * @data3: 3rd data parameter to be applied to @fmt.
+ *
+ * Description:
+ * This routine is used by the driver code to add a debugfs log entry to the
+ * discovery trace buffer associated with @vport. Only entries with a @mask that
+ * match the current debugfs discovery mask will be saved. Entries that do not
+ * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
+ * printf when displaying the log.
+ **/
+inline void
+lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
+	uint32_t data1, uint32_t data2, uint32_t data3)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	struct lpfc_debugfs_trc *dtp;
+	int index;
+
+	if (!(lpfc_debugfs_mask_disc_trc & mask))
+		return;
+
+	if (!lpfc_debugfs_enable || !lpfc_debugfs_max_disc_trc ||
+		!vport || !vport->disc_trc)
+		return;
+
+	index = atomic_inc_return(&vport->disc_trc_cnt) &
+		(lpfc_debugfs_max_disc_trc - 1);
+	dtp = vport->disc_trc + index;
+	dtp->fmt = fmt;
+	dtp->data1 = data1;
+	dtp->data2 = data2;
+	dtp->data3 = data3;
+	dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
+	dtp->jif = jiffies;
+#endif
+	return;
+}
+
+/**
+ * lpfc_debugfs_slow_ring_trc - Store slow ring trace log
+ * @phba: The phba to associate this trace string with for retrieval.
+ * @fmt: Format string to be displayed when dumping the log.
+ * @data1: 1st data parameter to be applied to @fmt.
+ * @data2: 2nd data parameter to be applied to @fmt.
+ * @data3: 3rd data parameter to be applied to @fmt.
+ *
+ * Description:
+ * This routine is used by the driver code to add a debugfs log entry to the
+ * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
+ * @data3 are used like printf when displaying the log.
+ **/
+inline void
+lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
+	uint32_t data1, uint32_t data2, uint32_t data3)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	struct lpfc_debugfs_trc *dtp;
+	int index;
+
+	if (!lpfc_debugfs_enable || !lpfc_debugfs_max_slow_ring_trc ||
+		!phba || !phba->slow_ring_trc)
+		return;
+
+	index = atomic_inc_return(&phba->slow_ring_trc_cnt) &
+		(lpfc_debugfs_max_slow_ring_trc - 1);
+	dtp = phba->slow_ring_trc + index;
+	dtp->fmt = fmt;
+	dtp->data1 = data1;
+	dtp->data2 = data2;
+	dtp->data3 = data3;
+	dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt);
+	dtp->jif = jiffies;
+#endif
+	return;
+}
+
+/**
+ * lpfc_debugfs_nvme_trc - Store NVME/NVMET trace log
+ * @phba: The phba to associate this trace string with for retrieval.
+ * @fmt: Format string to be displayed when dumping the log.
+ * @data1: 1st data parameter to be applied to @fmt.
+ * @data2: 2nd data parameter to be applied to @fmt.
+ * @data3: 3rd data parameter to be applied to @fmt.
+ *
+ * Description:
+ * This routine is used by the driver code to add a debugfs log entry to the
+ * nvme trace buffer associated with @phba. @fmt, @data1, @data2, and
+ * @data3 are used like printf when displaying the log.
+ **/
+inline void
+lpfc_debugfs_nvme_trc(struct lpfc_hba *phba, char *fmt,
+		      uint16_t data1, uint16_t data2, uint32_t data3)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	struct lpfc_debugfs_nvmeio_trc *dtp;
+	int index;
+
+	if (!phba->nvmeio_trc_on || !phba->nvmeio_trc)
+		return;
+
+	index = atomic_inc_return(&phba->nvmeio_trc_cnt) &
+		(phba->nvmeio_trc_size - 1);
+	dtp = phba->nvmeio_trc + index;
+	dtp->fmt = fmt;
+	dtp->data1 = data1;
+	dtp->data2 = data2;
+	dtp->data3 = data3;
+#endif
+}
+
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+/**
+ * lpfc_debugfs_disc_trc_open - Open the discovery trace log
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return a negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_vport *vport = inode->i_private;
+	struct lpfc_debug *debug;
+	int size;
+	int rc = -ENOMEM;
+
+	if (!lpfc_debugfs_max_disc_trc) {
+		rc = -ENOSPC;
+		goto out;
+	}
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	/* Round to page boundary */
+	size =  (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
+	size = PAGE_ALIGN(size);
+
+	debug->buffer = kmalloc(size, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_disc_trc_data(vport, debug->buffer, size);
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+/**
+ * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return a negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_hba *phba = inode->i_private;
+	struct lpfc_debug *debug;
+	int size;
+	int rc = -ENOMEM;
+
+	if (!lpfc_debugfs_max_slow_ring_trc) {
+		rc = -ENOSPC;
+		goto out;
+	}
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	/* Round to page boundary */
+	size =  (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
+	size = PAGE_ALIGN(size);
+
+	debug->buffer = kmalloc(size, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_slow_ring_trc_data(phba, debug->buffer, size);
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+/**
+ * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return a negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_hba *phba = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	/* Round to page boundary */
+	debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_hbqinfo_data(phba, debug->buffer,
+		LPFC_HBQINFO_SIZE);
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+/**
+ * lpfc_debugfs_multixripools_open - Open the multixripool debugfs buffer
+ * @inode: The inode pointer that contains a hba pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the hba from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this hba, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return a negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_multixripools_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_hba *phba = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	/* Round to page boundary */
+	debug->buffer = kzalloc(LPFC_DUMP_MULTIXRIPOOL_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_multixripools_data(
+		phba, debug->buffer, LPFC_DUMP_MULTIXRIPOOL_SIZE);
+
+	debug->i_private = inode->i_private;
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+#ifdef LPFC_HDWQ_LOCK_STAT
+/**
+ * lpfc_debugfs_lockstat_open - Open the lockstat debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return a negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_lockstat_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_hba *phba = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	/* Round to page boundary */
+	debug->buffer = kmalloc(LPFC_HDWQINFO_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_lockstat_data(phba, debug->buffer,
+		LPFC_HBQINFO_SIZE);
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+static ssize_t
+lpfc_debugfs_lockstat_write(struct file *file, const char __user *buf,
+			    size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	struct lpfc_sli4_hdw_queue *qp;
+	char mybuf[64];
+	char *pbuf;
+	int i;
+	size_t bsize;
+
+	memset(mybuf, 0, sizeof(mybuf));
+
+	bsize = min(nbytes, (sizeof(mybuf) - 1));
+
+	if (copy_from_user(mybuf, buf, bsize))
+		return -EFAULT;
+	pbuf = &mybuf[0];
+
+	if ((strncmp(pbuf, "reset", strlen("reset")) == 0) ||
+	    (strncmp(pbuf, "zero", strlen("zero")) == 0)) {
+		for (i = 0; i < phba->cfg_hdw_queue; i++) {
+			qp = &phba->sli4_hba.hdwq[i];
+			qp->lock_conflict.alloc_xri_get = 0;
+			qp->lock_conflict.alloc_xri_put = 0;
+			qp->lock_conflict.free_xri = 0;
+			qp->lock_conflict.wq_access = 0;
+			qp->lock_conflict.alloc_pvt_pool = 0;
+			qp->lock_conflict.mv_from_pvt_pool = 0;
+			qp->lock_conflict.mv_to_pub_pool = 0;
+			qp->lock_conflict.mv_to_pvt_pool = 0;
+			qp->lock_conflict.free_pvt_pool = 0;
+			qp->lock_conflict.free_pub_pool = 0;
+			qp->lock_conflict.wq_access = 0;
+		}
+	}
+	return bsize;
+}
+#endif
+
+static int lpfc_debugfs_ras_log_data(struct lpfc_hba *phba,
+				     char *buffer, int size)
+{
+	int copied = 0;
+	struct lpfc_dmabuf *dmabuf, *next;
+
+	memset(buffer, 0, size);
+
+	spin_lock_irq(&phba->hbalock);
+	if (phba->ras_fwlog.state != ACTIVE) {
+		spin_unlock_irq(&phba->hbalock);
+		return -EINVAL;
+	}
+	spin_unlock_irq(&phba->hbalock);
+
+	list_for_each_entry_safe(dmabuf, next,
+				 &phba->ras_fwlog.fwlog_buff_list, list) {
+		/* Check if copying will go over size and a '\0' char */
+		if ((copied + LPFC_RAS_MAX_ENTRY_SIZE) >= (size - 1)) {
+			memcpy(buffer + copied, dmabuf->virt,
+			       size - copied - 1);
+			copied += size - copied - 1;
+			break;
+		}
+		memcpy(buffer + copied, dmabuf->virt, LPFC_RAS_MAX_ENTRY_SIZE);
+		copied += LPFC_RAS_MAX_ENTRY_SIZE;
+	}
+	return copied;
+}
+
+static int
+lpfc_debugfs_ras_log_release(struct inode *inode, struct file *file)
+{
+	struct lpfc_debug *debug = file->private_data;
+
+	vfree(debug->buffer);
+	kfree(debug);
+
+	return 0;
+}
+
+/**
+ * lpfc_debugfs_ras_log_open - Open the RAS log debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return a negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_hba *phba = inode->i_private;
+	struct lpfc_debug *debug;
+	int size;
+	int rc = -ENOMEM;
+
+	spin_lock_irq(&phba->hbalock);
+	if (phba->ras_fwlog.state != ACTIVE) {
+		spin_unlock_irq(&phba->hbalock);
+		rc = -EINVAL;
+		goto out;
+	}
+	spin_unlock_irq(&phba->hbalock);
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	size = LPFC_RAS_MIN_BUFF_POST_SIZE * phba->cfg_ras_fwlog_buffsize;
+	debug->buffer = vmalloc(size);
+	if (!debug->buffer)
+		goto free_debug;
+
+	debug->len = lpfc_debugfs_ras_log_data(phba, debug->buffer, size);
+	if (debug->len < 0) {
+		rc = -EINVAL;
+		goto free_buffer;
+	}
+	file->private_data = debug;
+
+	return 0;
+
+free_buffer:
+	vfree(debug->buffer);
+free_debug:
+	kfree(debug);
+out:
+	return rc;
+}
+
+/**
+ * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return a negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_hba *phba = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	/* Round to page boundary */
+	debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_dumpHBASlim_data(phba, debug->buffer,
+		LPFC_DUMPHBASLIM_SIZE);
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+/**
+ * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return a negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_hba *phba = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	/* Round to page boundary */
+	debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_dumpHostSlim_data(phba, debug->buffer,
+		LPFC_DUMPHOSTSLIM_SIZE);
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+static ssize_t
+lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
+	size_t nbytes, loff_t *ppos)
+{
+	struct dentry *dent = file->f_path.dentry;
+	struct lpfc_hba *phba = file->private_data;
+	char cbuf[32];
+	uint64_t tmp = 0;
+	int cnt = 0;
+
+	if (dent == phba->debug_writeGuard)
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wgrd_cnt);
+	else if (dent == phba->debug_writeApp)
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wapp_cnt);
+	else if (dent == phba->debug_writeRef)
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_wref_cnt);
+	else if (dent == phba->debug_readGuard)
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rgrd_cnt);
+	else if (dent == phba->debug_readApp)
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rapp_cnt);
+	else if (dent == phba->debug_readRef)
+		cnt = scnprintf(cbuf, 32, "%u\n", phba->lpfc_injerr_rref_cnt);
+	else if (dent == phba->debug_InjErrNPortID)
+		cnt = scnprintf(cbuf, 32, "0x%06x\n",
+				phba->lpfc_injerr_nportid);
+	else if (dent == phba->debug_InjErrWWPN) {
+		memcpy(&tmp, &phba->lpfc_injerr_wwpn, sizeof(struct lpfc_name));
+		tmp = cpu_to_be64(tmp);
+		cnt = scnprintf(cbuf, 32, "0x%016llx\n", tmp);
+	} else if (dent == phba->debug_InjErrLBA) {
+		if (phba->lpfc_injerr_lba == (sector_t)(-1))
+			cnt = scnprintf(cbuf, 32, "off\n");
+		else
+			cnt = scnprintf(cbuf, 32, "0x%llx\n",
+				 (uint64_t) phba->lpfc_injerr_lba);
+	} else
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+			 "0547 Unknown debugfs error injection entry\n");
+
+	return simple_read_from_buffer(buf, nbytes, ppos, &cbuf, cnt);
+}
+
+static ssize_t
+lpfc_debugfs_dif_err_write(struct file *file, const char __user *buf,
+	size_t nbytes, loff_t *ppos)
+{
+	struct dentry *dent = file->f_path.dentry;
+	struct lpfc_hba *phba = file->private_data;
+	char dstbuf[33];
+	uint64_t tmp = 0;
+	int size;
+
+	memset(dstbuf, 0, 33);
+	size = (nbytes < 32) ? nbytes : 32;
+	if (copy_from_user(dstbuf, buf, size))
+		return -EFAULT;
+
+	if (dent == phba->debug_InjErrLBA) {
+		if ((dstbuf[0] == 'o') && (dstbuf[1] == 'f') &&
+		    (dstbuf[2] == 'f'))
+			tmp = (uint64_t)(-1);
+	}
+
+	if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp)))
+		return -EINVAL;
+
+	if (dent == phba->debug_writeGuard)
+		phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;
+	else if (dent == phba->debug_writeApp)
+		phba->lpfc_injerr_wapp_cnt = (uint32_t)tmp;
+	else if (dent == phba->debug_writeRef)
+		phba->lpfc_injerr_wref_cnt = (uint32_t)tmp;
+	else if (dent == phba->debug_readGuard)
+		phba->lpfc_injerr_rgrd_cnt = (uint32_t)tmp;
+	else if (dent == phba->debug_readApp)
+		phba->lpfc_injerr_rapp_cnt = (uint32_t)tmp;
+	else if (dent == phba->debug_readRef)
+		phba->lpfc_injerr_rref_cnt = (uint32_t)tmp;
+	else if (dent == phba->debug_InjErrLBA)
+		phba->lpfc_injerr_lba = (sector_t)tmp;
+	else if (dent == phba->debug_InjErrNPortID)
+		phba->lpfc_injerr_nportid = (uint32_t)(tmp & Mask_DID);
+	else if (dent == phba->debug_InjErrWWPN) {
+		tmp = cpu_to_be64(tmp);
+		memcpy(&phba->lpfc_injerr_wwpn, &tmp, sizeof(struct lpfc_name));
+	} else
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+			 "0548 Unknown debugfs error injection entry\n");
+
+	return nbytes;
+}
+
+static int
+lpfc_debugfs_dif_err_release(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+/**
+ * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file
+ * @inode: The inode pointer that contains a vport pointer.
+ * @file: The file pointer to attach the log output.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It gets
+ * the vport from the i_private field in @inode, allocates the necessary buffer
+ * for the log, fills the buffer from the in-memory log for this vport, and then
+ * returns a pointer to that log in the private_data field in @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return a negative
+ * error value.
+ **/
+static int
+lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_vport *vport = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	/* Round to page boundary */
+	debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_nodelist_data(vport, debug->buffer,
+		LPFC_NODELIST_SIZE);
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+/**
+ * lpfc_debugfs_lseek - Seek through a debugfs file
+ * @file: The file pointer to seek through.
+ * @off: The offset to seek to or the amount to seek by.
+ * @whence: Indicates how to seek.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs lseek file operation. The
+ * @whence parameter indicates whether @off is the offset to directly seek to,
+ * or if it is a value to seek forward or reverse by. This function figures out
+ * what the new offset of the debugfs file will be and assigns that value to the
+ * f_pos field of @file.
+ *
+ * Returns:
+ * This function returns the new offset if successful and returns a negative
+ * error if unable to process the seek.
+ **/
+static loff_t
+lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
+{
+	struct lpfc_debug *debug = file->private_data;
+	return fixed_size_llseek(file, off, whence, debug->len);
+}
+
+/**
+ * lpfc_debugfs_read - Read a debugfs file
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from from the buffer indicated in the private_data
+ * field of @file. It will start reading at @ppos and copy up to @nbytes of
+ * data to @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_debugfs_read(struct file *file, char __user *buf,
+		  size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+
+	return simple_read_from_buffer(buf, nbytes, ppos, debug->buffer,
+				       debug->len);
+}
+
+/**
+ * lpfc_debugfs_release - Release the buffer used to store debugfs file data
+ * @inode: The inode pointer that contains a vport pointer. (unused)
+ * @file: The file pointer that contains the buffer to release.
+ *
+ * Description:
+ * This routine frees the buffer that was allocated when the debugfs file was
+ * opened.
+ *
+ * Returns:
+ * This function returns zero.
+ **/
+static int
+lpfc_debugfs_release(struct inode *inode, struct file *file)
+{
+	struct lpfc_debug *debug = file->private_data;
+
+	kfree(debug->buffer);
+	kfree(debug);
+
+	return 0;
+}
+
+/**
+ * lpfc_debugfs_multixripools_write - Clear multi-XRI pools statistics
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine clears multi-XRI pools statistics when buf contains "clear".
+ *
+ * Return Value:
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_debugfs_multixripools_write(struct file *file, const char __user *buf,
+				 size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	char mybuf[64];
+	char *pbuf;
+	u32 i;
+	u32 hwq_count;
+	struct lpfc_sli4_hdw_queue *qp;
+	struct lpfc_multixri_pool *multixri_pool;
+
+	if (nbytes > sizeof(mybuf) - 1)
+		nbytes = sizeof(mybuf) - 1;
+
+	memset(mybuf, 0, sizeof(mybuf));
+
+	if (copy_from_user(mybuf, buf, nbytes))
+		return -EFAULT;
+	pbuf = &mybuf[0];
+
+	if ((strncmp(pbuf, "clear", strlen("clear"))) == 0) {
+		hwq_count = phba->cfg_hdw_queue;
+		for (i = 0; i < hwq_count; i++) {
+			qp = &phba->sli4_hba.hdwq[i];
+			multixri_pool = qp->p_multixri_pool;
+			if (!multixri_pool)
+				continue;
+
+			qp->empty_io_bufs = 0;
+			multixri_pool->pbl_empty_count = 0;
+#ifdef LPFC_MXP_STAT
+			multixri_pool->above_limit_count = 0;
+			multixri_pool->below_limit_count = 0;
+			multixri_pool->stat_max_hwm = 0;
+			multixri_pool->local_pbl_hit_count = 0;
+			multixri_pool->other_pbl_hit_count = 0;
+
+			multixri_pool->stat_pbl_count = 0;
+			multixri_pool->stat_pvt_count = 0;
+			multixri_pool->stat_busy_count = 0;
+			multixri_pool->stat_snapshot_taken = 0;
+#endif
+		}
+		return strlen(pbuf);
+	}
+
+	return -EINVAL;
+}
+
+static int
+lpfc_debugfs_nvmestat_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_vport *vport = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	 /* Round to page boundary */
+	debug->buffer = kmalloc(LPFC_NVMESTAT_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_nvmestat_data(vport, debug->buffer,
+		LPFC_NVMESTAT_SIZE);
+
+	debug->i_private = inode->i_private;
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+static ssize_t
+lpfc_debugfs_nvmestat_write(struct file *file, const char __user *buf,
+			    size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
+	struct lpfc_hba   *phba = vport->phba;
+	struct lpfc_nvmet_tgtport *tgtp;
+	char mybuf[64];
+	char *pbuf;
+
+	if (!phba->targetport)
+		return -ENXIO;
+
+	if (nbytes > sizeof(mybuf) - 1)
+		nbytes = sizeof(mybuf) - 1;
+
+	memset(mybuf, 0, sizeof(mybuf));
+
+	if (copy_from_user(mybuf, buf, nbytes))
+		return -EFAULT;
+	pbuf = &mybuf[0];
+
+	tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private;
+	if ((strncmp(pbuf, "reset", strlen("reset")) == 0) ||
+	    (strncmp(pbuf, "zero", strlen("zero")) == 0)) {
+		atomic_set(&tgtp->rcv_ls_req_in, 0);
+		atomic_set(&tgtp->rcv_ls_req_out, 0);
+		atomic_set(&tgtp->rcv_ls_req_drop, 0);
+		atomic_set(&tgtp->xmt_ls_abort, 0);
+		atomic_set(&tgtp->xmt_ls_abort_cmpl, 0);
+		atomic_set(&tgtp->xmt_ls_rsp, 0);
+		atomic_set(&tgtp->xmt_ls_drop, 0);
+		atomic_set(&tgtp->xmt_ls_rsp_error, 0);
+		atomic_set(&tgtp->xmt_ls_rsp_cmpl, 0);
+
+		atomic_set(&tgtp->rcv_fcp_cmd_in, 0);
+		atomic_set(&tgtp->rcv_fcp_cmd_out, 0);
+		atomic_set(&tgtp->rcv_fcp_cmd_drop, 0);
+		atomic_set(&tgtp->xmt_fcp_drop, 0);
+		atomic_set(&tgtp->xmt_fcp_read_rsp, 0);
+		atomic_set(&tgtp->xmt_fcp_read, 0);
+		atomic_set(&tgtp->xmt_fcp_write, 0);
+		atomic_set(&tgtp->xmt_fcp_rsp, 0);
+		atomic_set(&tgtp->xmt_fcp_release, 0);
+		atomic_set(&tgtp->xmt_fcp_rsp_cmpl, 0);
+		atomic_set(&tgtp->xmt_fcp_rsp_error, 0);
+		atomic_set(&tgtp->xmt_fcp_rsp_drop, 0);
+
+		atomic_set(&tgtp->xmt_fcp_abort, 0);
+		atomic_set(&tgtp->xmt_fcp_abort_cmpl, 0);
+		atomic_set(&tgtp->xmt_abort_sol, 0);
+		atomic_set(&tgtp->xmt_abort_unsol, 0);
+		atomic_set(&tgtp->xmt_abort_rsp, 0);
+		atomic_set(&tgtp->xmt_abort_rsp_error, 0);
+	}
+	return nbytes;
+}
+
+static int
+lpfc_debugfs_scsistat_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_vport *vport = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	 /* Round to page boundary */
+	debug->buffer = kzalloc(LPFC_SCSISTAT_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_scsistat_data(vport, debug->buffer,
+		LPFC_SCSISTAT_SIZE);
+
+	debug->i_private = inode->i_private;
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+static ssize_t
+lpfc_debugfs_scsistat_write(struct file *file, const char __user *buf,
+			    size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
+	struct lpfc_hba *phba = vport->phba;
+	char mybuf[6] = {0};
+	int i;
+
+	if (copy_from_user(mybuf, buf, (nbytes >= sizeof(mybuf)) ?
+				       (sizeof(mybuf) - 1) : nbytes))
+		return -EFAULT;
+
+	if ((strncmp(&mybuf[0], "reset", strlen("reset")) == 0) ||
+	    (strncmp(&mybuf[0], "zero", strlen("zero")) == 0)) {
+		for (i = 0; i < phba->cfg_hdw_queue; i++) {
+			memset(&phba->sli4_hba.hdwq[i].scsi_cstat, 0,
+			       sizeof(phba->sli4_hba.hdwq[i].scsi_cstat));
+		}
+	}
+
+	return nbytes;
+}
+
+static int
+lpfc_debugfs_ioktime_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_vport *vport = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	 /* Round to page boundary */
+	debug->buffer = kmalloc(LPFC_IOKTIME_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_ioktime_data(vport, debug->buffer,
+		LPFC_IOKTIME_SIZE);
+
+	debug->i_private = inode->i_private;
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+static ssize_t
+lpfc_debugfs_ioktime_write(struct file *file, const char __user *buf,
+			   size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
+	struct lpfc_hba   *phba = vport->phba;
+	char mybuf[64];
+	char *pbuf;
+
+	if (nbytes > sizeof(mybuf) - 1)
+		nbytes = sizeof(mybuf) - 1;
+
+	memset(mybuf, 0, sizeof(mybuf));
+
+	if (copy_from_user(mybuf, buf, nbytes))
+		return -EFAULT;
+	pbuf = &mybuf[0];
+
+	if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
+		phba->ktime_data_samples = 0;
+		phba->ktime_status_samples = 0;
+		phba->ktime_seg1_total = 0;
+		phba->ktime_seg1_max = 0;
+		phba->ktime_seg1_min = 0xffffffff;
+		phba->ktime_seg2_total = 0;
+		phba->ktime_seg2_max = 0;
+		phba->ktime_seg2_min = 0xffffffff;
+		phba->ktime_seg3_total = 0;
+		phba->ktime_seg3_max = 0;
+		phba->ktime_seg3_min = 0xffffffff;
+		phba->ktime_seg4_total = 0;
+		phba->ktime_seg4_max = 0;
+		phba->ktime_seg4_min = 0xffffffff;
+		phba->ktime_seg5_total = 0;
+		phba->ktime_seg5_max = 0;
+		phba->ktime_seg5_min = 0xffffffff;
+		phba->ktime_seg6_total = 0;
+		phba->ktime_seg6_max = 0;
+		phba->ktime_seg6_min = 0xffffffff;
+		phba->ktime_seg7_total = 0;
+		phba->ktime_seg7_max = 0;
+		phba->ktime_seg7_min = 0xffffffff;
+		phba->ktime_seg8_total = 0;
+		phba->ktime_seg8_max = 0;
+		phba->ktime_seg8_min = 0xffffffff;
+		phba->ktime_seg9_total = 0;
+		phba->ktime_seg9_max = 0;
+		phba->ktime_seg9_min = 0xffffffff;
+		phba->ktime_seg10_total = 0;
+		phba->ktime_seg10_max = 0;
+		phba->ktime_seg10_min = 0xffffffff;
+
+		phba->ktime_on = 1;
+		return strlen(pbuf);
+	} else if ((strncmp(pbuf, "off",
+		   sizeof("off") - 1) == 0)) {
+		phba->ktime_on = 0;
+		return strlen(pbuf);
+	} else if ((strncmp(pbuf, "zero",
+		   sizeof("zero") - 1) == 0)) {
+		phba->ktime_data_samples = 0;
+		phba->ktime_status_samples = 0;
+		phba->ktime_seg1_total = 0;
+		phba->ktime_seg1_max = 0;
+		phba->ktime_seg1_min = 0xffffffff;
+		phba->ktime_seg2_total = 0;
+		phba->ktime_seg2_max = 0;
+		phba->ktime_seg2_min = 0xffffffff;
+		phba->ktime_seg3_total = 0;
+		phba->ktime_seg3_max = 0;
+		phba->ktime_seg3_min = 0xffffffff;
+		phba->ktime_seg4_total = 0;
+		phba->ktime_seg4_max = 0;
+		phba->ktime_seg4_min = 0xffffffff;
+		phba->ktime_seg5_total = 0;
+		phba->ktime_seg5_max = 0;
+		phba->ktime_seg5_min = 0xffffffff;
+		phba->ktime_seg6_total = 0;
+		phba->ktime_seg6_max = 0;
+		phba->ktime_seg6_min = 0xffffffff;
+		phba->ktime_seg7_total = 0;
+		phba->ktime_seg7_max = 0;
+		phba->ktime_seg7_min = 0xffffffff;
+		phba->ktime_seg8_total = 0;
+		phba->ktime_seg8_max = 0;
+		phba->ktime_seg8_min = 0xffffffff;
+		phba->ktime_seg9_total = 0;
+		phba->ktime_seg9_max = 0;
+		phba->ktime_seg9_min = 0xffffffff;
+		phba->ktime_seg10_total = 0;
+		phba->ktime_seg10_max = 0;
+		phba->ktime_seg10_min = 0xffffffff;
+		return strlen(pbuf);
+	}
+	return -EINVAL;
+}
+
+static int
+lpfc_debugfs_nvmeio_trc_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_hba *phba = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	 /* Round to page boundary */
+	debug->buffer = kmalloc(LPFC_NVMEIO_TRC_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_nvmeio_trc_data(phba, debug->buffer,
+		LPFC_NVMEIO_TRC_SIZE);
+
+	debug->i_private = inode->i_private;
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+static ssize_t
+lpfc_debugfs_nvmeio_trc_write(struct file *file, const char __user *buf,
+			      size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	int i;
+	unsigned long sz;
+	char mybuf[64];
+	char *pbuf;
+
+	if (nbytes > sizeof(mybuf) - 1)
+		nbytes = sizeof(mybuf) - 1;
+
+	memset(mybuf, 0, sizeof(mybuf));
+
+	if (copy_from_user(mybuf, buf, nbytes))
+		return -EFAULT;
+	pbuf = &mybuf[0];
+
+	if ((strncmp(pbuf, "off", sizeof("off") - 1) == 0)) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"0570 nvmeio_trc_off\n");
+		phba->nvmeio_trc_output_idx = 0;
+		phba->nvmeio_trc_on = 0;
+		return strlen(pbuf);
+	} else if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"0571 nvmeio_trc_on\n");
+		phba->nvmeio_trc_output_idx = 0;
+		phba->nvmeio_trc_on = 1;
+		return strlen(pbuf);
+	}
+
+	/* We must be off to allocate the trace buffer */
+	if (phba->nvmeio_trc_on != 0)
+		return -EINVAL;
+
+	/* If not on or off, the parameter is the trace buffer size */
+	i = kstrtoul(pbuf, 0, &sz);
+	if (i)
+		return -EINVAL;
+	phba->nvmeio_trc_size = (uint32_t)sz;
+
+	/* It must be a power of 2 - round down */
+	i = 0;
+	while (sz > 1) {
+		sz = sz >> 1;
+		i++;
+	}
+	sz = (1 << i);
+	if (phba->nvmeio_trc_size != sz)
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"0572 nvmeio_trc_size changed to %ld\n",
+				sz);
+	phba->nvmeio_trc_size = (uint32_t)sz;
+
+	/* If one previously exists, free it */
+	kfree(phba->nvmeio_trc);
+
+	/* Allocate new trace buffer and initialize */
+	phba->nvmeio_trc = kzalloc((sizeof(struct lpfc_debugfs_nvmeio_trc) *
+				    sz), GFP_KERNEL);
+	if (!phba->nvmeio_trc) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"0573 Cannot create debugfs "
+				"nvmeio_trc buffer\n");
+		return -ENOMEM;
+	}
+	atomic_set(&phba->nvmeio_trc_cnt, 0);
+	phba->nvmeio_trc_on = 0;
+	phba->nvmeio_trc_output_idx = 0;
+
+	return strlen(pbuf);
+}
+
+static int
+lpfc_debugfs_hdwqstat_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_vport *vport = inode->i_private;
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	 /* Round to page boundary */
+	debug->buffer = kcalloc(1, LPFC_SCSISTAT_SIZE, GFP_KERNEL);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->len = lpfc_debugfs_hdwqstat_data(vport, debug->buffer,
+						LPFC_SCSISTAT_SIZE);
+
+	debug->i_private = inode->i_private;
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+static ssize_t
+lpfc_debugfs_hdwqstat_write(struct file *file, const char __user *buf,
+			    size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_vport *vport = (struct lpfc_vport *)debug->i_private;
+	struct lpfc_hba   *phba = vport->phba;
+	struct lpfc_hdwq_stat *c_stat;
+	char mybuf[64];
+	char *pbuf;
+	int i;
+
+	if (nbytes > sizeof(mybuf) - 1)
+		nbytes = sizeof(mybuf) - 1;
+
+	memset(mybuf, 0, sizeof(mybuf));
+
+	if (copy_from_user(mybuf, buf, nbytes))
+		return -EFAULT;
+	pbuf = &mybuf[0];
+
+	if ((strncmp(pbuf, "on", sizeof("on") - 1) == 0)) {
+		if (phba->nvmet_support)
+			phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO;
+		else
+			phba->hdwqstat_on |= (LPFC_CHECK_NVME_IO |
+				LPFC_CHECK_SCSI_IO);
+		return strlen(pbuf);
+	} else if ((strncmp(pbuf, "nvme_on", sizeof("nvme_on") - 1) == 0)) {
+		if (phba->nvmet_support)
+			phba->hdwqstat_on |= LPFC_CHECK_NVMET_IO;
+		else
+			phba->hdwqstat_on |= LPFC_CHECK_NVME_IO;
+		return strlen(pbuf);
+	} else if ((strncmp(pbuf, "scsi_on", sizeof("scsi_on") - 1) == 0)) {
+		if (!phba->nvmet_support)
+			phba->hdwqstat_on |= LPFC_CHECK_SCSI_IO;
+		return strlen(pbuf);
+	} else if ((strncmp(pbuf, "nvme_off", sizeof("nvme_off") - 1) == 0)) {
+		phba->hdwqstat_on &= ~(LPFC_CHECK_NVME_IO |
+				       LPFC_CHECK_NVMET_IO);
+		return strlen(pbuf);
+	} else if ((strncmp(pbuf, "scsi_off", sizeof("scsi_off") - 1) == 0)) {
+		phba->hdwqstat_on &= ~LPFC_CHECK_SCSI_IO;
+		return strlen(pbuf);
+	} else if ((strncmp(pbuf, "off",
+		   sizeof("off") - 1) == 0)) {
+		phba->hdwqstat_on = LPFC_CHECK_OFF;
+		return strlen(pbuf);
+	} else if ((strncmp(pbuf, "zero",
+		   sizeof("zero") - 1) == 0)) {
+		for_each_present_cpu(i) {
+			c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, i);
+			c_stat->xmt_io = 0;
+			c_stat->cmpl_io = 0;
+			c_stat->rcv_io = 0;
+		}
+		return strlen(pbuf);
+	}
+	return -EINVAL;
+}
+
+/*
+ * ---------------------------------
+ * iDiag debugfs file access methods
+ * ---------------------------------
+ *
+ * All access methods are through the proper SLI4 PCI function's debugfs
+ * iDiag directory:
+ *
+ *     /sys/kernel/debug/lpfc/fn<#>/iDiag
+ */
+
+/**
+ * lpfc_idiag_cmd_get - Get and parse idiag debugfs comands from user space
+ * @buf: The pointer to the user space buffer.
+ * @nbytes: The number of bytes in the user space buffer.
+ * @idiag_cmd: pointer to the idiag command struct.
+ *
+ * This routine reads data from debugfs user space buffer and parses the
+ * buffer for getting the idiag command and arguments. The while space in
+ * between the set of data is used as the parsing separator.
+ *
+ * This routine returns 0 when successful, it returns proper error code
+ * back to the user space in error conditions.
+ */
+static int lpfc_idiag_cmd_get(const char __user *buf, size_t nbytes,
+			      struct lpfc_idiag_cmd *idiag_cmd)
+{
+	char mybuf[64];
+	char *pbuf, *step_str;
+	int i;
+	size_t bsize;
+
+	memset(mybuf, 0, sizeof(mybuf));
+	memset(idiag_cmd, 0, sizeof(*idiag_cmd));
+	bsize = min(nbytes, (sizeof(mybuf)-1));
+
+	if (copy_from_user(mybuf, buf, bsize))
+		return -EFAULT;
+	pbuf = &mybuf[0];
+	step_str = strsep(&pbuf, "\t ");
+
+	/* The opcode must present */
+	if (!step_str)
+		return -EINVAL;
+
+	idiag_cmd->opcode = simple_strtol(step_str, NULL, 0);
+	if (idiag_cmd->opcode == 0)
+		return -EINVAL;
+
+	for (i = 0; i < LPFC_IDIAG_CMD_DATA_SIZE; i++) {
+		step_str = strsep(&pbuf, "\t ");
+		if (!step_str)
+			return i;
+		idiag_cmd->data[i] = simple_strtol(step_str, NULL, 0);
+	}
+	return i;
+}
+
+/**
+ * lpfc_idiag_open - idiag open debugfs
+ * @inode: The inode pointer that contains a pointer to phba.
+ * @file: The file pointer to attach the file operation.
+ *
+ * Description:
+ * This routine is the entry point for the debugfs open file operation. It
+ * gets the reference to phba from the i_private field in @inode, it then
+ * allocates buffer for the file operation, performs the necessary PCI config
+ * space read into the allocated buffer according to the idiag user command
+ * setup, and then returns a pointer to buffer in the private_data field in
+ * @file.
+ *
+ * Returns:
+ * This function returns zero if successful. On error it will return an
+ * negative error value.
+ **/
+static int
+lpfc_idiag_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_debug *debug;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		return -ENOMEM;
+
+	debug->i_private = inode->i_private;
+	debug->buffer = NULL;
+	file->private_data = debug;
+
+	return 0;
+}
+
+/**
+ * lpfc_idiag_release - Release idiag access file operation
+ * @inode: The inode pointer that contains a vport pointer. (unused)
+ * @file: The file pointer that contains the buffer to release.
+ *
+ * Description:
+ * This routine is the generic release routine for the idiag access file
+ * operation, it frees the buffer that was allocated when the debugfs file
+ * was opened.
+ *
+ * Returns:
+ * This function returns zero.
+ **/
+static int
+lpfc_idiag_release(struct inode *inode, struct file *file)
+{
+	struct lpfc_debug *debug = file->private_data;
+
+	/* Free the buffers to the file operation */
+	kfree(debug->buffer);
+	kfree(debug);
+
+	return 0;
+}
+
+/**
+ * lpfc_idiag_cmd_release - Release idiag cmd access file operation
+ * @inode: The inode pointer that contains a vport pointer. (unused)
+ * @file: The file pointer that contains the buffer to release.
+ *
+ * Description:
+ * This routine frees the buffer that was allocated when the debugfs file
+ * was opened. It also reset the fields in the idiag command struct in the
+ * case of command for write operation.
+ *
+ * Returns:
+ * This function returns zero.
+ **/
+static int
+lpfc_idiag_cmd_release(struct inode *inode, struct file *file)
+{
+	struct lpfc_debug *debug = file->private_data;
+
+	if (debug->op == LPFC_IDIAG_OP_WR) {
+		switch (idiag.cmd.opcode) {
+		case LPFC_IDIAG_CMD_PCICFG_WR:
+		case LPFC_IDIAG_CMD_PCICFG_ST:
+		case LPFC_IDIAG_CMD_PCICFG_CL:
+		case LPFC_IDIAG_CMD_QUEACC_WR:
+		case LPFC_IDIAG_CMD_QUEACC_ST:
+		case LPFC_IDIAG_CMD_QUEACC_CL:
+			memset(&idiag, 0, sizeof(idiag));
+			break;
+		default:
+			break;
+		}
+	}
+
+	/* Free the buffers to the file operation */
+	kfree(debug->buffer);
+	kfree(debug);
+
+	return 0;
+}
+
+/**
+ * lpfc_idiag_pcicfg_read - idiag debugfs read pcicfg
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba pci config space according to the
+ * idiag command, and copies to user @buf. Depending on the PCI config space
+ * read command setup, it does either a single register read of a byte
+ * (8 bits), a word (16 bits), or a dword (32 bits) or browsing through all
+ * registers from the 4K extended PCI config space.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_pcicfg_read(struct file *file, char __user *buf, size_t nbytes,
+		       loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	int offset_label, offset, len = 0, index = LPFC_PCI_CFG_RD_SIZE;
+	int where, count;
+	char *pbuffer;
+	struct pci_dev *pdev;
+	uint32_t u32val;
+	uint16_t u16val;
+	uint8_t u8val;
+
+	pdev = phba->pcidev;
+	if (!pdev)
+		return 0;
+
+	/* This is a user read operation */
+	debug->op = LPFC_IDIAG_OP_RD;
+
+	if (!debug->buffer)
+		debug->buffer = kmalloc(LPFC_PCI_CFG_SIZE, GFP_KERNEL);
+	if (!debug->buffer)
+		return 0;
+	pbuffer = debug->buffer;
+
+	if (*ppos)
+		return 0;
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
+		where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
+		count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
+	} else
+		return 0;
+
+	/* Read single PCI config space register */
+	switch (count) {
+	case SIZE_U8: /* byte (8 bits) */
+		pci_read_config_byte(pdev, where, &u8val);
+		len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+				"%03x: %02x\n", where, u8val);
+		break;
+	case SIZE_U16: /* word (16 bits) */
+		pci_read_config_word(pdev, where, &u16val);
+		len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+				"%03x: %04x\n", where, u16val);
+		break;
+	case SIZE_U32: /* double word (32 bits) */
+		pci_read_config_dword(pdev, where, &u32val);
+		len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+				"%03x: %08x\n", where, u32val);
+		break;
+	case LPFC_PCI_CFG_BROWSE: /* browse all */
+		goto pcicfg_browse;
+	default:
+		/* illegal count */
+		len = 0;
+		break;
+	}
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+pcicfg_browse:
+
+	/* Browse all PCI config space registers */
+	offset_label = idiag.offset.last_rd;
+	offset = offset_label;
+
+	/* Read PCI config space */
+	len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+			"%03x: ", offset_label);
+	while (index > 0) {
+		pci_read_config_dword(pdev, offset, &u32val);
+		len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+				"%08x ", u32val);
+		offset += sizeof(uint32_t);
+		if (offset >= LPFC_PCI_CFG_SIZE) {
+			len += scnprintf(pbuffer+len,
+					LPFC_PCI_CFG_SIZE-len, "\n");
+			break;
+		}
+		index -= sizeof(uint32_t);
+		if (!index)
+			len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+					"\n");
+		else if (!(index % (8 * sizeof(uint32_t)))) {
+			offset_label += (8 * sizeof(uint32_t));
+			len += scnprintf(pbuffer+len, LPFC_PCI_CFG_SIZE-len,
+					"\n%03x: ", offset_label);
+		}
+	}
+
+	/* Set up the offset for next portion of pci cfg read */
+	if (index == 0) {
+		idiag.offset.last_rd += LPFC_PCI_CFG_RD_SIZE;
+		if (idiag.offset.last_rd >= LPFC_PCI_CFG_SIZE)
+			idiag.offset.last_rd = 0;
+	} else
+		idiag.offset.last_rd = 0;
+
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_pcicfg_write - Syntax check and set up idiag pcicfg commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and
+ * then perform the syntax check for PCI config space read or write command
+ * accordingly. In the case of PCI config space read command, it sets up
+ * the command in the idiag command struct for the debugfs read operation.
+ * In the case of PCI config space write operation, it executes the write
+ * operation into the PCI config space accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ */
+static ssize_t
+lpfc_idiag_pcicfg_write(struct file *file, const char __user *buf,
+			size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	uint32_t where, value, count;
+	uint32_t u32val;
+	uint16_t u16val;
+	uint8_t u8val;
+	struct pci_dev *pdev;
+	int rc;
+
+	pdev = phba->pcidev;
+	if (!pdev)
+		return -EFAULT;
+
+	/* This is a user write operation */
+	debug->op = LPFC_IDIAG_OP_WR;
+
+	rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+	if (rc < 0)
+		return rc;
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_RD) {
+		/* Sanity check on PCI config read command line arguments */
+		if (rc != LPFC_PCI_CFG_RD_CMD_ARG)
+			goto error_out;
+		/* Read command from PCI config space, set up command fields */
+		where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
+		count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
+		if (count == LPFC_PCI_CFG_BROWSE) {
+			if (where % sizeof(uint32_t))
+				goto error_out;
+			/* Starting offset to browse */
+			idiag.offset.last_rd = where;
+		} else if ((count != sizeof(uint8_t)) &&
+			   (count != sizeof(uint16_t)) &&
+			   (count != sizeof(uint32_t)))
+			goto error_out;
+		if (count == sizeof(uint8_t)) {
+			if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
+				goto error_out;
+			if (where % sizeof(uint8_t))
+				goto error_out;
+		}
+		if (count == sizeof(uint16_t)) {
+			if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
+				goto error_out;
+			if (where % sizeof(uint16_t))
+				goto error_out;
+		}
+		if (count == sizeof(uint32_t)) {
+			if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
+				goto error_out;
+			if (where % sizeof(uint32_t))
+				goto error_out;
+		}
+	} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR ||
+		   idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST ||
+		   idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+		/* Sanity check on PCI config write command line arguments */
+		if (rc != LPFC_PCI_CFG_WR_CMD_ARG)
+			goto error_out;
+		/* Write command to PCI config space, read-modify-write */
+		where = idiag.cmd.data[IDIAG_PCICFG_WHERE_INDX];
+		count = idiag.cmd.data[IDIAG_PCICFG_COUNT_INDX];
+		value = idiag.cmd.data[IDIAG_PCICFG_VALUE_INDX];
+		/* Sanity checks */
+		if ((count != sizeof(uint8_t)) &&
+		    (count != sizeof(uint16_t)) &&
+		    (count != sizeof(uint32_t)))
+			goto error_out;
+		if (count == sizeof(uint8_t)) {
+			if (where > LPFC_PCI_CFG_SIZE - sizeof(uint8_t))
+				goto error_out;
+			if (where % sizeof(uint8_t))
+				goto error_out;
+			if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
+				pci_write_config_byte(pdev, where,
+						      (uint8_t)value);
+			if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
+				rc = pci_read_config_byte(pdev, where, &u8val);
+				if (!rc) {
+					u8val |= (uint8_t)value;
+					pci_write_config_byte(pdev, where,
+							      u8val);
+				}
+			}
+			if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+				rc = pci_read_config_byte(pdev, where, &u8val);
+				if (!rc) {
+					u8val &= (uint8_t)(~value);
+					pci_write_config_byte(pdev, where,
+							      u8val);
+				}
+			}
+		}
+		if (count == sizeof(uint16_t)) {
+			if (where > LPFC_PCI_CFG_SIZE - sizeof(uint16_t))
+				goto error_out;
+			if (where % sizeof(uint16_t))
+				goto error_out;
+			if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
+				pci_write_config_word(pdev, where,
+						      (uint16_t)value);
+			if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
+				rc = pci_read_config_word(pdev, where, &u16val);
+				if (!rc) {
+					u16val |= (uint16_t)value;
+					pci_write_config_word(pdev, where,
+							      u16val);
+				}
+			}
+			if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+				rc = pci_read_config_word(pdev, where, &u16val);
+				if (!rc) {
+					u16val &= (uint16_t)(~value);
+					pci_write_config_word(pdev, where,
+							      u16val);
+				}
+			}
+		}
+		if (count == sizeof(uint32_t)) {
+			if (where > LPFC_PCI_CFG_SIZE - sizeof(uint32_t))
+				goto error_out;
+			if (where % sizeof(uint32_t))
+				goto error_out;
+			if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_WR)
+				pci_write_config_dword(pdev, where, value);
+			if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_ST) {
+				rc = pci_read_config_dword(pdev, where,
+							   &u32val);
+				if (!rc) {
+					u32val |= value;
+					pci_write_config_dword(pdev, where,
+							       u32val);
+				}
+			}
+			if (idiag.cmd.opcode == LPFC_IDIAG_CMD_PCICFG_CL) {
+				rc = pci_read_config_dword(pdev, where,
+							   &u32val);
+				if (!rc) {
+					u32val &= ~value;
+					pci_write_config_dword(pdev, where,
+							       u32val);
+				}
+			}
+		}
+	} else
+		/* All other opecodes are illegal for now */
+		goto error_out;
+
+	return nbytes;
+error_out:
+	memset(&idiag, 0, sizeof(idiag));
+	return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_baracc_read - idiag debugfs pci bar access read
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba pci bar memory mapped space
+ * according to the idiag command, and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_baracc_read(struct file *file, char __user *buf, size_t nbytes,
+		       loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	int offset_label, offset, offset_run, len = 0, index;
+	int bar_num, acc_range, bar_size;
+	char *pbuffer;
+	void __iomem *mem_mapped_bar;
+	uint32_t if_type;
+	struct pci_dev *pdev;
+	uint32_t u32val;
+
+	pdev = phba->pcidev;
+	if (!pdev)
+		return 0;
+
+	/* This is a user read operation */
+	debug->op = LPFC_IDIAG_OP_RD;
+
+	if (!debug->buffer)
+		debug->buffer = kmalloc(LPFC_PCI_BAR_RD_BUF_SIZE, GFP_KERNEL);
+	if (!debug->buffer)
+		return 0;
+	pbuffer = debug->buffer;
+
+	if (*ppos)
+		return 0;
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
+		bar_num   = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
+		offset    = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
+		acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
+		bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
+	} else
+		return 0;
+
+	if (acc_range == 0)
+		return 0;
+
+	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+	if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+		if (bar_num == IDIAG_BARACC_BAR_0)
+			mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+		else if (bar_num == IDIAG_BARACC_BAR_1)
+			mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
+		else if (bar_num == IDIAG_BARACC_BAR_2)
+			mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
+		else
+			return 0;
+	} else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+		if (bar_num == IDIAG_BARACC_BAR_0)
+			mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+		else
+			return 0;
+	} else
+		return 0;
+
+	/* Read single PCI bar space register */
+	if (acc_range == SINGLE_WORD) {
+		offset_run = offset;
+		u32val = readl(mem_mapped_bar + offset_run);
+		len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+				"%05x: %08x\n", offset_run, u32val);
+	} else
+		goto baracc_browse;
+
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+baracc_browse:
+
+	/* Browse all PCI bar space registers */
+	offset_label = idiag.offset.last_rd;
+	offset_run = offset_label;
+
+	/* Read PCI bar memory mapped space */
+	len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+			"%05x: ", offset_label);
+	index = LPFC_PCI_BAR_RD_SIZE;
+	while (index > 0) {
+		u32val = readl(mem_mapped_bar + offset_run);
+		len += scnprintf(pbuffer+len, LPFC_PCI_BAR_RD_BUF_SIZE-len,
+				"%08x ", u32val);
+		offset_run += sizeof(uint32_t);
+		if (acc_range == LPFC_PCI_BAR_BROWSE) {
+			if (offset_run >= bar_size) {
+				len += scnprintf(pbuffer+len,
+					LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
+				break;
+			}
+		} else {
+			if (offset_run >= offset +
+			    (acc_range * sizeof(uint32_t))) {
+				len += scnprintf(pbuffer+len,
+					LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
+				break;
+			}
+		}
+		index -= sizeof(uint32_t);
+		if (!index)
+			len += scnprintf(pbuffer+len,
+					LPFC_PCI_BAR_RD_BUF_SIZE-len, "\n");
+		else if (!(index % (8 * sizeof(uint32_t)))) {
+			offset_label += (8 * sizeof(uint32_t));
+			len += scnprintf(pbuffer+len,
+					LPFC_PCI_BAR_RD_BUF_SIZE-len,
+					"\n%05x: ", offset_label);
+		}
+	}
+
+	/* Set up the offset for next portion of pci bar read */
+	if (index == 0) {
+		idiag.offset.last_rd += LPFC_PCI_BAR_RD_SIZE;
+		if (acc_range == LPFC_PCI_BAR_BROWSE) {
+			if (idiag.offset.last_rd >= bar_size)
+				idiag.offset.last_rd = 0;
+		} else {
+			if (offset_run >= offset +
+			    (acc_range * sizeof(uint32_t)))
+				idiag.offset.last_rd = offset;
+		}
+	} else {
+		if (acc_range == LPFC_PCI_BAR_BROWSE)
+			idiag.offset.last_rd = 0;
+		else
+			idiag.offset.last_rd = offset;
+	}
+
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_baracc_write - Syntax check and set up idiag bar access commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and
+ * then perform the syntax check for PCI bar memory mapped space read or
+ * write command accordingly. In the case of PCI bar memory mapped space
+ * read command, it sets up the command in the idiag command struct for
+ * the debugfs read operation. In the case of PCI bar memorpy mapped space
+ * write operation, it executes the write operation into the PCI bar memory
+ * mapped space accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ */
+static ssize_t
+lpfc_idiag_baracc_write(struct file *file, const char __user *buf,
+			size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	uint32_t bar_num, bar_size, offset, value, acc_range;
+	struct pci_dev *pdev;
+	void __iomem *mem_mapped_bar;
+	uint32_t if_type;
+	uint32_t u32val;
+	int rc;
+
+	pdev = phba->pcidev;
+	if (!pdev)
+		return -EFAULT;
+
+	/* This is a user write operation */
+	debug->op = LPFC_IDIAG_OP_WR;
+
+	rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+	if (rc < 0)
+		return rc;
+
+	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
+	bar_num = idiag.cmd.data[IDIAG_BARACC_BAR_NUM_INDX];
+
+	if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+		if ((bar_num != IDIAG_BARACC_BAR_0) &&
+		    (bar_num != IDIAG_BARACC_BAR_1) &&
+		    (bar_num != IDIAG_BARACC_BAR_2))
+			goto error_out;
+	} else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+		if (bar_num != IDIAG_BARACC_BAR_0)
+			goto error_out;
+	} else
+		goto error_out;
+
+	if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
+		if (bar_num == IDIAG_BARACC_BAR_0) {
+			idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+				LPFC_PCI_IF0_BAR0_SIZE;
+			mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+		} else if (bar_num == IDIAG_BARACC_BAR_1) {
+			idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+				LPFC_PCI_IF0_BAR1_SIZE;
+			mem_mapped_bar = phba->sli4_hba.ctrl_regs_memmap_p;
+		} else if (bar_num == IDIAG_BARACC_BAR_2) {
+			idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+				LPFC_PCI_IF0_BAR2_SIZE;
+			mem_mapped_bar = phba->sli4_hba.drbl_regs_memmap_p;
+		} else
+			goto error_out;
+	} else if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+		if (bar_num == IDIAG_BARACC_BAR_0) {
+			idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX] =
+				LPFC_PCI_IF2_BAR0_SIZE;
+			mem_mapped_bar = phba->sli4_hba.conf_regs_memmap_p;
+		} else
+			goto error_out;
+	} else
+		goto error_out;
+
+	offset = idiag.cmd.data[IDIAG_BARACC_OFF_SET_INDX];
+	if (offset % sizeof(uint32_t))
+		goto error_out;
+
+	bar_size = idiag.cmd.data[IDIAG_BARACC_BAR_SZE_INDX];
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_RD) {
+		/* Sanity check on PCI config read command line arguments */
+		if (rc != LPFC_PCI_BAR_RD_CMD_ARG)
+			goto error_out;
+		acc_range = idiag.cmd.data[IDIAG_BARACC_ACC_MOD_INDX];
+		if (acc_range == LPFC_PCI_BAR_BROWSE) {
+			if (offset > bar_size - sizeof(uint32_t))
+				goto error_out;
+			/* Starting offset to browse */
+			idiag.offset.last_rd = offset;
+		} else if (acc_range > SINGLE_WORD) {
+			if (offset + acc_range * sizeof(uint32_t) > bar_size)
+				goto error_out;
+			/* Starting offset to browse */
+			idiag.offset.last_rd = offset;
+		} else if (acc_range != SINGLE_WORD)
+			goto error_out;
+	} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR ||
+		   idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST ||
+		   idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
+		/* Sanity check on PCI bar write command line arguments */
+		if (rc != LPFC_PCI_BAR_WR_CMD_ARG)
+			goto error_out;
+		/* Write command to PCI bar space, read-modify-write */
+		acc_range = SINGLE_WORD;
+		value = idiag.cmd.data[IDIAG_BARACC_REG_VAL_INDX];
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_WR) {
+			writel(value, mem_mapped_bar + offset);
+			readl(mem_mapped_bar + offset);
+		}
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_ST) {
+			u32val = readl(mem_mapped_bar + offset);
+			u32val |= value;
+			writel(u32val, mem_mapped_bar + offset);
+			readl(mem_mapped_bar + offset);
+		}
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_BARACC_CL) {
+			u32val = readl(mem_mapped_bar + offset);
+			u32val &= ~value;
+			writel(u32val, mem_mapped_bar + offset);
+			readl(mem_mapped_bar + offset);
+		}
+	} else
+		/* All other opecodes are illegal for now */
+		goto error_out;
+
+	return nbytes;
+error_out:
+	memset(&idiag, 0, sizeof(idiag));
+	return -EINVAL;
+}
+
+static int
+__lpfc_idiag_print_wq(struct lpfc_queue *qp, char *wqtype,
+			char *pbuffer, int len)
+{
+	if (!qp)
+		return len;
+
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\t\t%s WQ info: ", wqtype);
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"AssocCQID[%04d]: WQ-STAT[oflow:x%x posted:x%llx]\n",
+			qp->assoc_qid, qp->q_cnt_1,
+			(unsigned long long)qp->q_cnt_4);
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\t\tWQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
+			"HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]",
+			qp->queue_id, qp->entry_count,
+			qp->entry_size, qp->host_index,
+			qp->hba_index, qp->notify_interval);
+	len +=  scnprintf(pbuffer + len,
+			LPFC_QUE_INFO_GET_BUF_SIZE - len, "\n");
+	return len;
+}
+
+static int
+lpfc_idiag_wqs_for_cq(struct lpfc_hba *phba, char *wqtype, char *pbuffer,
+		int *len, int max_cnt, int cq_id)
+{
+	struct lpfc_queue *qp;
+	int qidx;
+
+	for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
+		qp = phba->sli4_hba.hdwq[qidx].io_wq;
+		if (qp->assoc_qid != cq_id)
+			continue;
+		*len = __lpfc_idiag_print_wq(qp, wqtype, pbuffer, *len);
+		if (*len >= max_cnt)
+			return 1;
+	}
+	return 0;
+}
+
+static int
+__lpfc_idiag_print_cq(struct lpfc_queue *qp, char *cqtype,
+			char *pbuffer, int len)
+{
+	if (!qp)
+		return len;
+
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\t%s CQ info: ", cqtype);
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"AssocEQID[%02d]: CQ STAT[max:x%x relw:x%x "
+			"xabt:x%x wq:x%llx]\n",
+			qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
+			qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\tCQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
+			"HST-IDX[%04d], NTFI[%03d], PLMT[%03d]",
+			qp->queue_id, qp->entry_count,
+			qp->entry_size, qp->host_index,
+			qp->notify_interval, qp->max_proc_limit);
+
+	len +=  scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\n");
+
+	return len;
+}
+
+static int
+__lpfc_idiag_print_rqpair(struct lpfc_queue *qp, struct lpfc_queue *datqp,
+			char *rqtype, char *pbuffer, int len)
+{
+	if (!qp || !datqp)
+		return len;
+
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\t\t%s RQ info: ", rqtype);
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"AssocCQID[%02d]: RQ-STAT[nopost:x%x nobuf:x%x "
+			"posted:x%x rcv:x%llx]\n",
+			qp->assoc_qid, qp->q_cnt_1, qp->q_cnt_2,
+			qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\t\tHQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
+			"HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n",
+			qp->queue_id, qp->entry_count, qp->entry_size,
+			qp->host_index, qp->hba_index, qp->notify_interval);
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\t\tDQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
+			"HST-IDX[%04d], PRT-IDX[%04d], NTFI[%03d]\n",
+			datqp->queue_id, datqp->entry_count,
+			datqp->entry_size, datqp->host_index,
+			datqp->hba_index, datqp->notify_interval);
+	return len;
+}
+
+static int
+lpfc_idiag_cqs_for_eq(struct lpfc_hba *phba, char *pbuffer,
+		int *len, int max_cnt, int eqidx, int eq_id)
+{
+	struct lpfc_queue *qp;
+	int rc;
+
+	qp = phba->sli4_hba.hdwq[eqidx].io_cq;
+
+	*len = __lpfc_idiag_print_cq(qp, "IO", pbuffer, *len);
+
+	/* Reset max counter */
+	qp->CQ_max_cqe = 0;
+
+	if (*len >= max_cnt)
+		return 1;
+
+	rc = lpfc_idiag_wqs_for_cq(phba, "IO", pbuffer, len,
+				   max_cnt, qp->queue_id);
+	if (rc)
+		return 1;
+
+	if ((eqidx < phba->cfg_nvmet_mrq) && phba->nvmet_support) {
+		/* NVMET CQset */
+		qp = phba->sli4_hba.nvmet_cqset[eqidx];
+		*len = __lpfc_idiag_print_cq(qp, "NVMET CQset", pbuffer, *len);
+
+		/* Reset max counter */
+		qp->CQ_max_cqe = 0;
+
+		if (*len >= max_cnt)
+			return 1;
+
+		/* RQ header */
+		qp = phba->sli4_hba.nvmet_mrq_hdr[eqidx];
+		*len = __lpfc_idiag_print_rqpair(qp,
+				phba->sli4_hba.nvmet_mrq_data[eqidx],
+				"NVMET MRQ", pbuffer, *len);
+
+		if (*len >= max_cnt)
+			return 1;
+	}
+
+	return 0;
+}
+
+static int
+__lpfc_idiag_print_eq(struct lpfc_queue *qp, char *eqtype,
+			char *pbuffer, int len)
+{
+	if (!qp)
+		return len;
+
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\n%s EQ info: EQ-STAT[max:x%x noE:x%x "
+			"cqe_proc:x%x eqe_proc:x%llx eqd %d]\n",
+			eqtype, qp->q_cnt_1, qp->q_cnt_2, qp->q_cnt_3,
+			(unsigned long long)qp->q_cnt_4, qp->q_mode);
+	len += scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"EQID[%02d], QE-CNT[%04d], QE-SZ[%04d], "
+			"HST-IDX[%04d], NTFI[%03d], PLMT[%03d], AFFIN[%03d]",
+			qp->queue_id, qp->entry_count, qp->entry_size,
+			qp->host_index, qp->notify_interval,
+			qp->max_proc_limit, qp->chann);
+	len +=  scnprintf(pbuffer + len, LPFC_QUE_INFO_GET_BUF_SIZE - len,
+			"\n");
+
+	return len;
+}
+
+/**
+ * lpfc_idiag_queinfo_read - idiag debugfs read queue information
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba SLI4 PCI function queue information,
+ * and copies to user @buf.
+ * This routine only returns 1 EQs worth of information. It remembers the last
+ * EQ read and jumps to the next EQ. Thus subsequent calls to queInfo will
+ * retrieve all EQs allocated for the phba.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
+			loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	char *pbuffer;
+	int max_cnt, rc, x, len = 0;
+	struct lpfc_queue *qp = NULL;
+
+	if (!debug->buffer)
+		debug->buffer = kmalloc(LPFC_QUE_INFO_GET_BUF_SIZE, GFP_KERNEL);
+	if (!debug->buffer)
+		return 0;
+	pbuffer = debug->buffer;
+	max_cnt = LPFC_QUE_INFO_GET_BUF_SIZE - 256;
+
+	if (*ppos)
+		return 0;
+
+	spin_lock_irq(&phba->hbalock);
+
+	/* Fast-path event queue */
+	if (phba->sli4_hba.hdwq && phba->cfg_hdw_queue) {
+
+		x = phba->lpfc_idiag_last_eq;
+		phba->lpfc_idiag_last_eq++;
+		if (phba->lpfc_idiag_last_eq >= phba->cfg_hdw_queue)
+			phba->lpfc_idiag_last_eq = 0;
+
+		len += scnprintf(pbuffer + len,
+				 LPFC_QUE_INFO_GET_BUF_SIZE - len,
+				 "HDWQ %d out of %d HBA HDWQs\n",
+				 x, phba->cfg_hdw_queue);
+
+		/* Fast-path EQ */
+		qp = phba->sli4_hba.hdwq[x].hba_eq;
+		if (!qp)
+			goto out;
+
+		len = __lpfc_idiag_print_eq(qp, "HBA", pbuffer, len);
+
+		/* Reset max counter */
+		qp->EQ_max_eqe = 0;
+
+		if (len >= max_cnt)
+			goto too_big;
+
+		/* will dump both fcp and nvme cqs/wqs for the eq */
+		rc = lpfc_idiag_cqs_for_eq(phba, pbuffer, &len,
+			max_cnt, x, qp->queue_id);
+		if (rc)
+			goto too_big;
+
+		/* Only EQ 0 has slow path CQs configured */
+		if (x)
+			goto out;
+
+		/* Slow-path mailbox CQ */
+		qp = phba->sli4_hba.mbx_cq;
+		len = __lpfc_idiag_print_cq(qp, "MBX", pbuffer, len);
+		if (len >= max_cnt)
+			goto too_big;
+
+		/* Slow-path MBOX MQ */
+		qp = phba->sli4_hba.mbx_wq;
+		len = __lpfc_idiag_print_wq(qp, "MBX", pbuffer, len);
+		if (len >= max_cnt)
+			goto too_big;
+
+		/* Slow-path ELS response CQ */
+		qp = phba->sli4_hba.els_cq;
+		len = __lpfc_idiag_print_cq(qp, "ELS", pbuffer, len);
+		/* Reset max counter */
+		if (qp)
+			qp->CQ_max_cqe = 0;
+		if (len >= max_cnt)
+			goto too_big;
+
+		/* Slow-path ELS WQ */
+		qp = phba->sli4_hba.els_wq;
+		len = __lpfc_idiag_print_wq(qp, "ELS", pbuffer, len);
+		if (len >= max_cnt)
+			goto too_big;
+
+		qp = phba->sli4_hba.hdr_rq;
+		len = __lpfc_idiag_print_rqpair(qp, phba->sli4_hba.dat_rq,
+						"ELS RQpair", pbuffer, len);
+		if (len >= max_cnt)
+			goto too_big;
+
+		/* Slow-path NVME LS response CQ */
+		qp = phba->sli4_hba.nvmels_cq;
+		len = __lpfc_idiag_print_cq(qp, "NVME LS",
+						pbuffer, len);
+		/* Reset max counter */
+		if (qp)
+			qp->CQ_max_cqe = 0;
+		if (len >= max_cnt)
+			goto too_big;
+
+		/* Slow-path NVME LS WQ */
+		qp = phba->sli4_hba.nvmels_wq;
+		len = __lpfc_idiag_print_wq(qp, "NVME LS",
+						pbuffer, len);
+		if (len >= max_cnt)
+			goto too_big;
+
+		goto out;
+	}
+
+	spin_unlock_irq(&phba->hbalock);
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+too_big:
+	len +=  scnprintf(pbuffer + len,
+		LPFC_QUE_INFO_GET_BUF_SIZE - len, "Truncated ...\n");
+out:
+	spin_unlock_irq(&phba->hbalock);
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_que_param_check - queue access command parameter sanity check
+ * @q: The pointer to queue structure.
+ * @index: The index into a queue entry.
+ * @count: The number of queue entries to access.
+ *
+ * Description:
+ * The routine performs sanity check on device queue access method commands.
+ *
+ * Returns:
+ * This function returns -EINVAL when fails the sanity check, otherwise, it
+ * returns 0.
+ **/
+static int
+lpfc_idiag_que_param_check(struct lpfc_queue *q, int index, int count)
+{
+	/* Only support single entry read or browsing */
+	if ((count != 1) && (count != LPFC_QUE_ACC_BROWSE))
+		return -EINVAL;
+	if (index > q->entry_count - 1)
+		return -EINVAL;
+	return 0;
+}
+
+/**
+ * lpfc_idiag_queacc_read_qe - read a single entry from the given queue index
+ * @pbuffer: The pointer to buffer to copy the read data into.
+ * @len: Length of the buffer.
+ * @pque: The pointer to the queue to be read.
+ * @index: The index into the queue entry.
+ *
+ * Description:
+ * This routine reads out a single entry from the given queue's index location
+ * and copies it into the buffer provided.
+ *
+ * Returns:
+ * This function returns 0 when it fails, otherwise, it returns the length of
+ * the data read into the buffer provided.
+ **/
+static int
+lpfc_idiag_queacc_read_qe(char *pbuffer, int len, struct lpfc_queue *pque,
+			  uint32_t index)
+{
+	int offset, esize;
+	uint32_t *pentry;
+
+	if (!pbuffer || !pque)
+		return 0;
+
+	esize = pque->entry_size;
+	len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
+			"QE-INDEX[%04d]:\n", index);
+
+	offset = 0;
+	pentry = lpfc_sli4_qe(pque, index);
+	while (esize > 0) {
+		len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len,
+				"%08x ", *pentry);
+		pentry++;
+		offset += sizeof(uint32_t);
+		esize -= sizeof(uint32_t);
+		if (esize > 0 && !(offset % (4 * sizeof(uint32_t))))
+			len += scnprintf(pbuffer+len,
+					LPFC_QUE_ACC_BUF_SIZE-len, "\n");
+	}
+	len += scnprintf(pbuffer+len, LPFC_QUE_ACC_BUF_SIZE-len, "\n");
+
+	return len;
+}
+
+/**
+ * lpfc_idiag_queacc_read - idiag debugfs read port queue
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba device queue memory according to the
+ * idiag command, and copies to user @buf. Depending on the queue dump read
+ * command setup, it does either a single queue entry read or browing through
+ * all entries of the queue.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_queacc_read(struct file *file, char __user *buf, size_t nbytes,
+		       loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	uint32_t last_index, index, count;
+	struct lpfc_queue *pque = NULL;
+	char *pbuffer;
+	int len = 0;
+
+	/* This is a user read operation */
+	debug->op = LPFC_IDIAG_OP_RD;
+
+	if (!debug->buffer)
+		debug->buffer = kmalloc(LPFC_QUE_ACC_BUF_SIZE, GFP_KERNEL);
+	if (!debug->buffer)
+		return 0;
+	pbuffer = debug->buffer;
+
+	if (*ppos)
+		return 0;
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
+		index = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
+		count = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
+		pque = (struct lpfc_queue *)idiag.ptr_private;
+	} else
+		return 0;
+
+	/* Browse the queue starting from index */
+	if (count == LPFC_QUE_ACC_BROWSE)
+		goto que_browse;
+
+	/* Read a single entry from the queue */
+	len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
+
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+
+que_browse:
+
+	/* Browse all entries from the queue */
+	last_index = idiag.offset.last_rd;
+	index = last_index;
+
+	while (len < LPFC_QUE_ACC_SIZE - pque->entry_size) {
+		len = lpfc_idiag_queacc_read_qe(pbuffer, len, pque, index);
+		index++;
+		if (index > pque->entry_count - 1)
+			break;
+	}
+
+	/* Set up the offset for next portion of pci cfg read */
+	if (index > pque->entry_count - 1)
+		index = 0;
+	idiag.offset.last_rd = index;
+
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_queacc_write - Syntax check and set up idiag queacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for port queue read (dump) or write (set) command
+ * accordingly. In the case of port queue read command, it sets up the command
+ * in the idiag command struct for the following debugfs read operation. In
+ * the case of port queue write operation, it executes the write operation
+ * into the port queue entry accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
+			size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	uint32_t qidx, quetp, queid, index, count, offset, value;
+	uint32_t *pentry;
+	struct lpfc_queue *pque, *qp;
+	int rc;
+
+	/* This is a user write operation */
+	debug->op = LPFC_IDIAG_OP_WR;
+
+	rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+	if (rc < 0)
+		return rc;
+
+	/* Get and sanity check on command feilds */
+	quetp  = idiag.cmd.data[IDIAG_QUEACC_QUETP_INDX];
+	queid  = idiag.cmd.data[IDIAG_QUEACC_QUEID_INDX];
+	index  = idiag.cmd.data[IDIAG_QUEACC_INDEX_INDX];
+	count  = idiag.cmd.data[IDIAG_QUEACC_COUNT_INDX];
+	offset = idiag.cmd.data[IDIAG_QUEACC_OFFST_INDX];
+	value  = idiag.cmd.data[IDIAG_QUEACC_VALUE_INDX];
+
+	/* Sanity check on command line arguments */
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
+		if (rc != LPFC_QUE_ACC_WR_CMD_ARG)
+			goto error_out;
+		if (count != 1)
+			goto error_out;
+	} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
+		if (rc != LPFC_QUE_ACC_RD_CMD_ARG)
+			goto error_out;
+	} else
+		goto error_out;
+
+	switch (quetp) {
+	case LPFC_IDIAG_EQ:
+		/* HBA event queue */
+		if (phba->sli4_hba.hdwq) {
+			for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
+				qp = phba->sli4_hba.hdwq[qidx].hba_eq;
+				if (qp && qp->queue_id == queid) {
+					/* Sanity check */
+					rc = lpfc_idiag_que_param_check(qp,
+						index, count);
+					if (rc)
+						goto error_out;
+					idiag.ptr_private = qp;
+					goto pass_check;
+				}
+			}
+		}
+		goto error_out;
+
+	case LPFC_IDIAG_CQ:
+		/* MBX complete queue */
+		if (phba->sli4_hba.mbx_cq &&
+		    phba->sli4_hba.mbx_cq->queue_id == queid) {
+			/* Sanity check */
+			rc = lpfc_idiag_que_param_check(
+					phba->sli4_hba.mbx_cq, index, count);
+			if (rc)
+				goto error_out;
+			idiag.ptr_private = phba->sli4_hba.mbx_cq;
+			goto pass_check;
+		}
+		/* ELS complete queue */
+		if (phba->sli4_hba.els_cq &&
+		    phba->sli4_hba.els_cq->queue_id == queid) {
+			/* Sanity check */
+			rc = lpfc_idiag_que_param_check(
+					phba->sli4_hba.els_cq, index, count);
+			if (rc)
+				goto error_out;
+			idiag.ptr_private = phba->sli4_hba.els_cq;
+			goto pass_check;
+		}
+		/* NVME LS complete queue */
+		if (phba->sli4_hba.nvmels_cq &&
+		    phba->sli4_hba.nvmels_cq->queue_id == queid) {
+			/* Sanity check */
+			rc = lpfc_idiag_que_param_check(
+					phba->sli4_hba.nvmels_cq, index, count);
+			if (rc)
+				goto error_out;
+			idiag.ptr_private = phba->sli4_hba.nvmels_cq;
+			goto pass_check;
+		}
+		/* FCP complete queue */
+		if (phba->sli4_hba.hdwq) {
+			for (qidx = 0; qidx < phba->cfg_hdw_queue;
+								qidx++) {
+				qp = phba->sli4_hba.hdwq[qidx].io_cq;
+				if (qp && qp->queue_id == queid) {
+					/* Sanity check */
+					rc = lpfc_idiag_que_param_check(
+						qp, index, count);
+					if (rc)
+						goto error_out;
+					idiag.ptr_private = qp;
+					goto pass_check;
+				}
+			}
+		}
+		goto error_out;
+
+	case LPFC_IDIAG_MQ:
+		/* MBX work queue */
+		if (phba->sli4_hba.mbx_wq &&
+		    phba->sli4_hba.mbx_wq->queue_id == queid) {
+			/* Sanity check */
+			rc = lpfc_idiag_que_param_check(
+					phba->sli4_hba.mbx_wq, index, count);
+			if (rc)
+				goto error_out;
+			idiag.ptr_private = phba->sli4_hba.mbx_wq;
+			goto pass_check;
+		}
+		goto error_out;
+
+	case LPFC_IDIAG_WQ:
+		/* ELS work queue */
+		if (phba->sli4_hba.els_wq &&
+		    phba->sli4_hba.els_wq->queue_id == queid) {
+			/* Sanity check */
+			rc = lpfc_idiag_que_param_check(
+					phba->sli4_hba.els_wq, index, count);
+			if (rc)
+				goto error_out;
+			idiag.ptr_private = phba->sli4_hba.els_wq;
+			goto pass_check;
+		}
+		/* NVME LS work queue */
+		if (phba->sli4_hba.nvmels_wq &&
+		    phba->sli4_hba.nvmels_wq->queue_id == queid) {
+			/* Sanity check */
+			rc = lpfc_idiag_que_param_check(
+					phba->sli4_hba.nvmels_wq, index, count);
+			if (rc)
+				goto error_out;
+			idiag.ptr_private = phba->sli4_hba.nvmels_wq;
+			goto pass_check;
+		}
+
+		if (phba->sli4_hba.hdwq) {
+			/* FCP/SCSI work queue */
+			for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
+				qp = phba->sli4_hba.hdwq[qidx].io_wq;
+				if (qp && qp->queue_id == queid) {
+					/* Sanity check */
+					rc = lpfc_idiag_que_param_check(
+						qp, index, count);
+					if (rc)
+						goto error_out;
+					idiag.ptr_private = qp;
+					goto pass_check;
+				}
+			}
+		}
+		goto error_out;
+
+	case LPFC_IDIAG_RQ:
+		/* HDR queue */
+		if (phba->sli4_hba.hdr_rq &&
+		    phba->sli4_hba.hdr_rq->queue_id == queid) {
+			/* Sanity check */
+			rc = lpfc_idiag_que_param_check(
+					phba->sli4_hba.hdr_rq, index, count);
+			if (rc)
+				goto error_out;
+			idiag.ptr_private = phba->sli4_hba.hdr_rq;
+			goto pass_check;
+		}
+		/* DAT queue */
+		if (phba->sli4_hba.dat_rq &&
+		    phba->sli4_hba.dat_rq->queue_id == queid) {
+			/* Sanity check */
+			rc = lpfc_idiag_que_param_check(
+					phba->sli4_hba.dat_rq, index, count);
+			if (rc)
+				goto error_out;
+			idiag.ptr_private = phba->sli4_hba.dat_rq;
+			goto pass_check;
+		}
+		goto error_out;
+	default:
+		goto error_out;
+	}
+
+pass_check:
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_RD) {
+		if (count == LPFC_QUE_ACC_BROWSE)
+			idiag.offset.last_rd = index;
+	}
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL) {
+		/* Additional sanity checks on write operation */
+		pque = (struct lpfc_queue *)idiag.ptr_private;
+		if (offset > pque->entry_size/sizeof(uint32_t) - 1)
+			goto error_out;
+		pentry = lpfc_sli4_qe(pque, index);
+		pentry += offset;
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_WR)
+			*pentry = value;
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_ST)
+			*pentry |= value;
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_QUEACC_CL)
+			*pentry &= ~value;
+	}
+	return nbytes;
+
+error_out:
+	/* Clean out command structure on command error out */
+	memset(&idiag, 0, sizeof(idiag));
+	return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_drbacc_read_reg - idiag debugfs read a doorbell register
+ * @phba: The pointer to hba structure.
+ * @pbuffer: The pointer to the buffer to copy the data to.
+ * @len: The length of bytes to copied.
+ * @drbregid: The id to doorbell registers.
+ *
+ * Description:
+ * This routine reads a doorbell register and copies its content to the
+ * user buffer pointed to by @pbuffer.
+ *
+ * Returns:
+ * This function returns the amount of data that was copied into @pbuffer.
+ **/
+static int
+lpfc_idiag_drbacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
+			   int len, uint32_t drbregid)
+{
+
+	if (!pbuffer)
+		return 0;
+
+	switch (drbregid) {
+	case LPFC_DRB_EQ:
+		len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE-len,
+				"EQ-DRB-REG: 0x%08x\n",
+				readl(phba->sli4_hba.EQDBregaddr));
+		break;
+	case LPFC_DRB_CQ:
+		len += scnprintf(pbuffer + len, LPFC_DRB_ACC_BUF_SIZE - len,
+				"CQ-DRB-REG: 0x%08x\n",
+				readl(phba->sli4_hba.CQDBregaddr));
+		break;
+	case LPFC_DRB_MQ:
+		len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
+				"MQ-DRB-REG:   0x%08x\n",
+				readl(phba->sli4_hba.MQDBregaddr));
+		break;
+	case LPFC_DRB_WQ:
+		len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
+				"WQ-DRB-REG:   0x%08x\n",
+				readl(phba->sli4_hba.WQDBregaddr));
+		break;
+	case LPFC_DRB_RQ:
+		len += scnprintf(pbuffer+len, LPFC_DRB_ACC_BUF_SIZE-len,
+				"RQ-DRB-REG:   0x%08x\n",
+				readl(phba->sli4_hba.RQDBregaddr));
+		break;
+	default:
+		break;
+	}
+
+	return len;
+}
+
+/**
+ * lpfc_idiag_drbacc_read - idiag debugfs read port doorbell
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba device doorbell register according
+ * to the idiag command, and copies to user @buf. Depending on the doorbell
+ * register read command setup, it does either a single doorbell register
+ * read or dump all doorbell registers.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_drbacc_read(struct file *file, char __user *buf, size_t nbytes,
+		       loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	uint32_t drb_reg_id, i;
+	char *pbuffer;
+	int len = 0;
+
+	/* This is a user read operation */
+	debug->op = LPFC_IDIAG_OP_RD;
+
+	if (!debug->buffer)
+		debug->buffer = kmalloc(LPFC_DRB_ACC_BUF_SIZE, GFP_KERNEL);
+	if (!debug->buffer)
+		return 0;
+	pbuffer = debug->buffer;
+
+	if (*ppos)
+		return 0;
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD)
+		drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
+	else
+		return 0;
+
+	if (drb_reg_id == LPFC_DRB_ACC_ALL)
+		for (i = 1; i <= LPFC_DRB_MAX; i++)
+			len = lpfc_idiag_drbacc_read_reg(phba,
+							 pbuffer, len, i);
+	else
+		len = lpfc_idiag_drbacc_read_reg(phba,
+						 pbuffer, len, drb_reg_id);
+
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_drbacc_write - Syntax check and set up idiag drbacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for port doorbell register read (dump) or write
+ * (set) command accordingly. In the case of port queue read command, it sets
+ * up the command in the idiag command struct for the following debugfs read
+ * operation. In the case of port doorbell register write operation, it
+ * executes the write operation into the port doorbell register accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_drbacc_write(struct file *file, const char __user *buf,
+			size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	uint32_t drb_reg_id, value, reg_val = 0;
+	void __iomem *drb_reg;
+	int rc;
+
+	/* This is a user write operation */
+	debug->op = LPFC_IDIAG_OP_WR;
+
+	rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+	if (rc < 0)
+		return rc;
+
+	/* Sanity check on command line arguments */
+	drb_reg_id = idiag.cmd.data[IDIAG_DRBACC_REGID_INDX];
+	value = idiag.cmd.data[IDIAG_DRBACC_VALUE_INDX];
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
+		if (rc != LPFC_DRB_ACC_WR_CMD_ARG)
+			goto error_out;
+		if (drb_reg_id > LPFC_DRB_MAX)
+			goto error_out;
+	} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_RD) {
+		if (rc != LPFC_DRB_ACC_RD_CMD_ARG)
+			goto error_out;
+		if ((drb_reg_id > LPFC_DRB_MAX) &&
+		    (drb_reg_id != LPFC_DRB_ACC_ALL))
+			goto error_out;
+	} else
+		goto error_out;
+
+	/* Perform the write access operation */
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
+		switch (drb_reg_id) {
+		case LPFC_DRB_EQ:
+			drb_reg = phba->sli4_hba.EQDBregaddr;
+			break;
+		case LPFC_DRB_CQ:
+			drb_reg = phba->sli4_hba.CQDBregaddr;
+			break;
+		case LPFC_DRB_MQ:
+			drb_reg = phba->sli4_hba.MQDBregaddr;
+			break;
+		case LPFC_DRB_WQ:
+			drb_reg = phba->sli4_hba.WQDBregaddr;
+			break;
+		case LPFC_DRB_RQ:
+			drb_reg = phba->sli4_hba.RQDBregaddr;
+			break;
+		default:
+			goto error_out;
+		}
+
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_WR)
+			reg_val = value;
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_ST) {
+			reg_val = readl(drb_reg);
+			reg_val |= value;
+		}
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_DRBACC_CL) {
+			reg_val = readl(drb_reg);
+			reg_val &= ~value;
+		}
+		writel(reg_val, drb_reg);
+		readl(drb_reg); /* flush */
+	}
+	return nbytes;
+
+error_out:
+	/* Clean out command structure on command error out */
+	memset(&idiag, 0, sizeof(idiag));
+	return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_ctlacc_read_reg - idiag debugfs read a control registers
+ * @phba: The pointer to hba structure.
+ * @pbuffer: The pointer to the buffer to copy the data to.
+ * @len: The length of bytes to copied.
+ * @ctlregid: The id to doorbell registers.
+ *
+ * Description:
+ * This routine reads a control register and copies its content to the
+ * user buffer pointed to by @pbuffer.
+ *
+ * Returns:
+ * This function returns the amount of data that was copied into @pbuffer.
+ **/
+static int
+lpfc_idiag_ctlacc_read_reg(struct lpfc_hba *phba, char *pbuffer,
+			   int len, uint32_t ctlregid)
+{
+
+	if (!pbuffer)
+		return 0;
+
+	switch (ctlregid) {
+	case LPFC_CTL_PORT_SEM:
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+				"Port SemReg:   0x%08x\n",
+				readl(phba->sli4_hba.conf_regs_memmap_p +
+				      LPFC_CTL_PORT_SEM_OFFSET));
+		break;
+	case LPFC_CTL_PORT_STA:
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+				"Port StaReg:   0x%08x\n",
+				readl(phba->sli4_hba.conf_regs_memmap_p +
+				      LPFC_CTL_PORT_STA_OFFSET));
+		break;
+	case LPFC_CTL_PORT_CTL:
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+				"Port CtlReg:   0x%08x\n",
+				readl(phba->sli4_hba.conf_regs_memmap_p +
+				      LPFC_CTL_PORT_CTL_OFFSET));
+		break;
+	case LPFC_CTL_PORT_ER1:
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+				"Port Er1Reg:   0x%08x\n",
+				readl(phba->sli4_hba.conf_regs_memmap_p +
+				      LPFC_CTL_PORT_ER1_OFFSET));
+		break;
+	case LPFC_CTL_PORT_ER2:
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+				"Port Er2Reg:   0x%08x\n",
+				readl(phba->sli4_hba.conf_regs_memmap_p +
+				      LPFC_CTL_PORT_ER2_OFFSET));
+		break;
+	case LPFC_CTL_PDEV_CTL:
+		len += scnprintf(pbuffer+len, LPFC_CTL_ACC_BUF_SIZE-len,
+				"PDev CtlReg:   0x%08x\n",
+				readl(phba->sli4_hba.conf_regs_memmap_p +
+				      LPFC_CTL_PDEV_CTL_OFFSET));
+		break;
+	default:
+		break;
+	}
+	return len;
+}
+
+/**
+ * lpfc_idiag_ctlacc_read - idiag debugfs read port and device control register
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba port and device registers according
+ * to the idiag command, and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_ctlacc_read(struct file *file, char __user *buf, size_t nbytes,
+		       loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	uint32_t ctl_reg_id, i;
+	char *pbuffer;
+	int len = 0;
+
+	/* This is a user read operation */
+	debug->op = LPFC_IDIAG_OP_RD;
+
+	if (!debug->buffer)
+		debug->buffer = kmalloc(LPFC_CTL_ACC_BUF_SIZE, GFP_KERNEL);
+	if (!debug->buffer)
+		return 0;
+	pbuffer = debug->buffer;
+
+	if (*ppos)
+		return 0;
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD)
+		ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
+	else
+		return 0;
+
+	if (ctl_reg_id == LPFC_CTL_ACC_ALL)
+		for (i = 1; i <= LPFC_CTL_MAX; i++)
+			len = lpfc_idiag_ctlacc_read_reg(phba,
+							 pbuffer, len, i);
+	else
+		len = lpfc_idiag_ctlacc_read_reg(phba,
+						 pbuffer, len, ctl_reg_id);
+
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_ctlacc_write - Syntax check and set up idiag ctlacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for port and device control register read (dump)
+ * or write (set) command accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_ctlacc_write(struct file *file, const char __user *buf,
+			size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	uint32_t ctl_reg_id, value, reg_val = 0;
+	void __iomem *ctl_reg;
+	int rc;
+
+	/* This is a user write operation */
+	debug->op = LPFC_IDIAG_OP_WR;
+
+	rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+	if (rc < 0)
+		return rc;
+
+	/* Sanity check on command line arguments */
+	ctl_reg_id = idiag.cmd.data[IDIAG_CTLACC_REGID_INDX];
+	value = idiag.cmd.data[IDIAG_CTLACC_VALUE_INDX];
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
+		if (rc != LPFC_CTL_ACC_WR_CMD_ARG)
+			goto error_out;
+		if (ctl_reg_id > LPFC_CTL_MAX)
+			goto error_out;
+	} else if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_RD) {
+		if (rc != LPFC_CTL_ACC_RD_CMD_ARG)
+			goto error_out;
+		if ((ctl_reg_id > LPFC_CTL_MAX) &&
+		    (ctl_reg_id != LPFC_CTL_ACC_ALL))
+			goto error_out;
+	} else
+		goto error_out;
+
+	/* Perform the write access operation */
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST ||
+	    idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
+		switch (ctl_reg_id) {
+		case LPFC_CTL_PORT_SEM:
+			ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+					LPFC_CTL_PORT_SEM_OFFSET;
+			break;
+		case LPFC_CTL_PORT_STA:
+			ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+					LPFC_CTL_PORT_STA_OFFSET;
+			break;
+		case LPFC_CTL_PORT_CTL:
+			ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+					LPFC_CTL_PORT_CTL_OFFSET;
+			break;
+		case LPFC_CTL_PORT_ER1:
+			ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+					LPFC_CTL_PORT_ER1_OFFSET;
+			break;
+		case LPFC_CTL_PORT_ER2:
+			ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+					LPFC_CTL_PORT_ER2_OFFSET;
+			break;
+		case LPFC_CTL_PDEV_CTL:
+			ctl_reg = phba->sli4_hba.conf_regs_memmap_p +
+					LPFC_CTL_PDEV_CTL_OFFSET;
+			break;
+		default:
+			goto error_out;
+		}
+
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_WR)
+			reg_val = value;
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_ST) {
+			reg_val = readl(ctl_reg);
+			reg_val |= value;
+		}
+		if (idiag.cmd.opcode == LPFC_IDIAG_CMD_CTLACC_CL) {
+			reg_val = readl(ctl_reg);
+			reg_val &= ~value;
+		}
+		writel(reg_val, ctl_reg);
+		readl(ctl_reg); /* flush */
+	}
+	return nbytes;
+
+error_out:
+	/* Clean out command structure on command error out */
+	memset(&idiag, 0, sizeof(idiag));
+	return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_mbxacc_get_setup - idiag debugfs get mailbox access setup
+ * @phba: Pointer to HBA context object.
+ * @pbuffer: Pointer to data buffer.
+ *
+ * Description:
+ * This routine gets the driver mailbox access debugfs setup information.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static int
+lpfc_idiag_mbxacc_get_setup(struct lpfc_hba *phba, char *pbuffer)
+{
+	uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
+	int len = 0;
+
+	mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+	mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+	mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+	mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+	len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+			"mbx_dump_map: 0x%08x\n", mbx_dump_map);
+	len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+			"mbx_dump_cnt: %04d\n", mbx_dump_cnt);
+	len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+			"mbx_word_cnt: %04d\n", mbx_word_cnt);
+	len += scnprintf(pbuffer+len, LPFC_MBX_ACC_BUF_SIZE-len,
+			"mbx_mbox_cmd: 0x%02x\n", mbx_mbox_cmd);
+
+	return len;
+}
+
+/**
+ * lpfc_idiag_mbxacc_read - idiag debugfs read on mailbox access
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the @phba driver mailbox access debugfs setup
+ * information.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_mbxacc_read(struct file *file, char __user *buf, size_t nbytes,
+		       loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	char *pbuffer;
+	int len = 0;
+
+	/* This is a user read operation */
+	debug->op = LPFC_IDIAG_OP_RD;
+
+	if (!debug->buffer)
+		debug->buffer = kmalloc(LPFC_MBX_ACC_BUF_SIZE, GFP_KERNEL);
+	if (!debug->buffer)
+		return 0;
+	pbuffer = debug->buffer;
+
+	if (*ppos)
+		return 0;
+
+	if ((idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP) &&
+	    (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP))
+		return 0;
+
+	len = lpfc_idiag_mbxacc_get_setup(phba, pbuffer);
+
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+/**
+ * lpfc_idiag_mbxacc_write - Syntax check and set up idiag mbxacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for driver mailbox command (dump) and sets up the
+ * necessary states in the idiag command struct accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_mbxacc_write(struct file *file, const char __user *buf,
+			size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	uint32_t mbx_dump_map, mbx_dump_cnt, mbx_word_cnt, mbx_mbox_cmd;
+	int rc;
+
+	/* This is a user write operation */
+	debug->op = LPFC_IDIAG_OP_WR;
+
+	rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+	if (rc < 0)
+		return rc;
+
+	/* Sanity check on command line arguments */
+	mbx_mbox_cmd = idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+	mbx_dump_map = idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+	mbx_dump_cnt = idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+	mbx_word_cnt = idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+	if (idiag.cmd.opcode == LPFC_IDIAG_CMD_MBXACC_DP) {
+		if (!(mbx_dump_map & LPFC_MBX_DMP_MBX_ALL))
+			goto error_out;
+		if ((mbx_dump_map & ~LPFC_MBX_DMP_MBX_ALL) &&
+		    (mbx_dump_map != LPFC_MBX_DMP_ALL))
+			goto error_out;
+		if (mbx_word_cnt > sizeof(MAILBOX_t))
+			goto error_out;
+	} else if (idiag.cmd.opcode == LPFC_IDIAG_BSG_MBXACC_DP) {
+		if (!(mbx_dump_map & LPFC_BSG_DMP_MBX_ALL))
+			goto error_out;
+		if ((mbx_dump_map & ~LPFC_BSG_DMP_MBX_ALL) &&
+		    (mbx_dump_map != LPFC_MBX_DMP_ALL))
+			goto error_out;
+		if (mbx_word_cnt > (BSG_MBOX_SIZE)/4)
+			goto error_out;
+		if (mbx_mbox_cmd != 0x9b)
+			goto error_out;
+	} else
+		goto error_out;
+
+	if (mbx_word_cnt == 0)
+		goto error_out;
+	if (rc != LPFC_MBX_DMP_ARG)
+		goto error_out;
+	if (mbx_mbox_cmd & ~0xff)
+		goto error_out;
+
+	/* condition for stop mailbox dump */
+	if (mbx_dump_cnt == 0)
+		goto reset_out;
+
+	return nbytes;
+
+reset_out:
+	/* Clean out command structure on command error out */
+	memset(&idiag, 0, sizeof(idiag));
+	return nbytes;
+
+error_out:
+	/* Clean out command structure on command error out */
+	memset(&idiag, 0, sizeof(idiag));
+	return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_extacc_avail_get - get the available extents information
+ * @phba: pointer to lpfc hba data structure.
+ * @pbuffer: pointer to internal buffer.
+ * @len: length into the internal buffer data has been copied.
+ *
+ * Description:
+ * This routine is to get the available extent information.
+ *
+ * Returns:
+ * overall length of the data read into the internal buffer.
+ **/
+static int
+lpfc_idiag_extacc_avail_get(struct lpfc_hba *phba, char *pbuffer, int len)
+{
+	uint16_t ext_cnt = 0, ext_size = 0;
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\nAvailable Extents Information:\n");
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tPort Available VPI extents: ");
+	lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI,
+				       &ext_cnt, &ext_size);
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tPort Available VFI extents: ");
+	lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VFI,
+				       &ext_cnt, &ext_size);
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tPort Available RPI extents: ");
+	lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI,
+				       &ext_cnt, &ext_size);
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tPort Available XRI extents: ");
+	lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI,
+				       &ext_cnt, &ext_size);
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"Count %3d, Size %3d\n", ext_cnt, ext_size);
+
+	return len;
+}
+
+/**
+ * lpfc_idiag_extacc_alloc_get - get the allocated extents information
+ * @phba: pointer to lpfc hba data structure.
+ * @pbuffer: pointer to internal buffer.
+ * @len: length into the internal buffer data has been copied.
+ *
+ * Description:
+ * This routine is to get the allocated extent information.
+ *
+ * Returns:
+ * overall length of the data read into the internal buffer.
+ **/
+static int
+lpfc_idiag_extacc_alloc_get(struct lpfc_hba *phba, char *pbuffer, int len)
+{
+	uint16_t ext_cnt, ext_size;
+	int rc;
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\nAllocated Extents Information:\n");
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tHost Allocated VPI extents: ");
+	rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VPI,
+					    &ext_cnt, &ext_size);
+	if (!rc)
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"Port %d Extent %3d, Size %3d\n",
+				phba->brd_no, ext_cnt, ext_size);
+	else
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"N/A\n");
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tHost Allocated VFI extents: ");
+	rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_VFI,
+					    &ext_cnt, &ext_size);
+	if (!rc)
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"Port %d Extent %3d, Size %3d\n",
+				phba->brd_no, ext_cnt, ext_size);
+	else
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"N/A\n");
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tHost Allocated RPI extents: ");
+	rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_RPI,
+					    &ext_cnt, &ext_size);
+	if (!rc)
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"Port %d Extent %3d, Size %3d\n",
+				phba->brd_no, ext_cnt, ext_size);
+	else
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"N/A\n");
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tHost Allocated XRI extents: ");
+	rc = lpfc_sli4_get_allocated_extnts(phba, LPFC_RSC_TYPE_FCOE_XRI,
+					    &ext_cnt, &ext_size);
+	if (!rc)
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"Port %d Extent %3d, Size %3d\n",
+				phba->brd_no, ext_cnt, ext_size);
+	else
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"N/A\n");
+
+	return len;
+}
+
+/**
+ * lpfc_idiag_extacc_drivr_get - get driver extent information
+ * @phba: pointer to lpfc hba data structure.
+ * @pbuffer: pointer to internal buffer.
+ * @len: length into the internal buffer data has been copied.
+ *
+ * Description:
+ * This routine is to get the driver extent information.
+ *
+ * Returns:
+ * overall length of the data read into the internal buffer.
+ **/
+static int
+lpfc_idiag_extacc_drivr_get(struct lpfc_hba *phba, char *pbuffer, int len)
+{
+	struct lpfc_rsrc_blks *rsrc_blks;
+	int index;
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\nDriver Extents Information:\n");
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tVPI extents:\n");
+	index = 0;
+	list_for_each_entry(rsrc_blks, &phba->lpfc_vpi_blk_list, list) {
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"\t\tBlock %3d: Start %4d, Count %4d\n",
+				index, rsrc_blks->rsrc_start,
+				rsrc_blks->rsrc_size);
+		index++;
+	}
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tVFI extents:\n");
+	index = 0;
+	list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_vfi_blk_list,
+			    list) {
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"\t\tBlock %3d: Start %4d, Count %4d\n",
+				index, rsrc_blks->rsrc_start,
+				rsrc_blks->rsrc_size);
+		index++;
+	}
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tRPI extents:\n");
+	index = 0;
+	list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_rpi_blk_list,
+			    list) {
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"\t\tBlock %3d: Start %4d, Count %4d\n",
+				index, rsrc_blks->rsrc_start,
+				rsrc_blks->rsrc_size);
+		index++;
+	}
+
+	len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+			"\tXRI extents:\n");
+	index = 0;
+	list_for_each_entry(rsrc_blks, &phba->sli4_hba.lpfc_xri_blk_list,
+			    list) {
+		len += scnprintf(pbuffer+len, LPFC_EXT_ACC_BUF_SIZE-len,
+				"\t\tBlock %3d: Start %4d, Count %4d\n",
+				index, rsrc_blks->rsrc_start,
+				rsrc_blks->rsrc_size);
+		index++;
+	}
+
+	return len;
+}
+
+/**
+ * lpfc_idiag_extacc_write - Syntax check and set up idiag extacc commands
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the user data from.
+ * @nbytes: The number of bytes to get.
+ * @ppos: The position in the file to start reading from.
+ *
+ * This routine get the debugfs idiag command struct from user space and then
+ * perform the syntax check for extent information access commands and sets
+ * up the necessary states in the idiag command struct accordingly.
+ *
+ * It returns the @nbytges passing in from debugfs user space when successful.
+ * In case of error conditions, it returns proper error code back to the user
+ * space.
+ **/
+static ssize_t
+lpfc_idiag_extacc_write(struct file *file, const char __user *buf,
+			size_t nbytes, loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	uint32_t ext_map;
+	int rc;
+
+	/* This is a user write operation */
+	debug->op = LPFC_IDIAG_OP_WR;
+
+	rc = lpfc_idiag_cmd_get(buf, nbytes, &idiag.cmd);
+	if (rc < 0)
+		return rc;
+
+	ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
+
+	if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
+		goto error_out;
+	if (rc != LPFC_EXT_ACC_CMD_ARG)
+		goto error_out;
+	if (!(ext_map & LPFC_EXT_ACC_ALL))
+		goto error_out;
+
+	return nbytes;
+error_out:
+	/* Clean out command structure on command error out */
+	memset(&idiag, 0, sizeof(idiag));
+	return -EINVAL;
+}
+
+/**
+ * lpfc_idiag_extacc_read - idiag debugfs read access to extent information
+ * @file: The file pointer to read from.
+ * @buf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the proper extent information according to
+ * the idiag command, and copies to user @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be less
+ * than @nbytes if the end of the file was reached) or a negative error value.
+ **/
+static ssize_t
+lpfc_idiag_extacc_read(struct file *file, char __user *buf, size_t nbytes,
+		       loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	char *pbuffer;
+	uint32_t ext_map;
+	int len = 0;
+
+	/* This is a user read operation */
+	debug->op = LPFC_IDIAG_OP_RD;
+
+	if (!debug->buffer)
+		debug->buffer = kmalloc(LPFC_EXT_ACC_BUF_SIZE, GFP_KERNEL);
+	if (!debug->buffer)
+		return 0;
+	pbuffer = debug->buffer;
+	if (*ppos)
+		return 0;
+	if (idiag.cmd.opcode != LPFC_IDIAG_CMD_EXTACC_RD)
+		return 0;
+
+	ext_map = idiag.cmd.data[IDIAG_EXTACC_EXMAP_INDX];
+	if (ext_map & LPFC_EXT_ACC_AVAIL)
+		len = lpfc_idiag_extacc_avail_get(phba, pbuffer, len);
+	if (ext_map & LPFC_EXT_ACC_ALLOC)
+		len = lpfc_idiag_extacc_alloc_get(phba, pbuffer, len);
+	if (ext_map & LPFC_EXT_ACC_DRIVR)
+		len = lpfc_idiag_extacc_drivr_get(phba, pbuffer, len);
+
+	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
+}
+
+static int
+lpfc_cgn_buffer_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	debug->buffer = vmalloc(LPFC_CGN_BUF_SIZE);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->i_private = inode->i_private;
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+static ssize_t
+lpfc_cgn_buffer_read(struct file *file, char __user *buf, size_t nbytes,
+		     loff_t *ppos)
+{
+	struct lpfc_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	char *buffer = debug->buffer;
+	uint32_t *ptr;
+	int cnt, len = 0;
+
+	if (!phba->sli4_hba.pc_sli4_params.mi_ver || !phba->cgn_i) {
+		len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
+				 "Congestion Mgmt is not supported\n");
+		goto out;
+	}
+	ptr = (uint32_t *)phba->cgn_i->virt;
+	len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
+			 "Congestion Buffer Header\n");
+	/* Dump the first 32 bytes */
+	cnt = 32;
+	len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
+			 "000: %08x %08x %08x %08x %08x %08x %08x %08x\n",
+			 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3),
+			 *(ptr + 4), *(ptr + 5), *(ptr + 6), *(ptr + 7));
+	ptr += 8;
+	len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
+			 "Congestion Buffer Data\n");
+	while (cnt < sizeof(struct lpfc_cgn_info)) {
+		if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) {
+			len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
+					 "Truncated . . .\n");
+			goto out;
+		}
+		len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
+				 "%03x: %08x %08x %08x %08x "
+				 "%08x %08x %08x %08x\n",
+				 cnt, *ptr, *(ptr + 1), *(ptr + 2),
+				 *(ptr + 3), *(ptr + 4), *(ptr + 5),
+				 *(ptr + 6), *(ptr + 7));
+		cnt += 32;
+		ptr += 8;
+	}
+	if (len > (LPFC_CGN_BUF_SIZE - LPFC_DEBUG_OUT_LINE_SZ)) {
+		len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
+				 "Truncated . . .\n");
+		goto out;
+	}
+	len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
+			 "Parameter Data\n");
+	ptr = (uint32_t *)&phba->cgn_p;
+	len += scnprintf(buffer + len, LPFC_CGN_BUF_SIZE - len,
+			 "%08x %08x %08x %08x\n",
+			 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3));
+out:
+	return simple_read_from_buffer(buf, nbytes, ppos, buffer, len);
+}
+
+static int
+lpfc_cgn_buffer_release(struct inode *inode, struct file *file)
+{
+	struct lpfc_debug *debug = file->private_data;
+
+	vfree(debug->buffer);
+	kfree(debug);
+
+	return 0;
+}
+
+static int
+lpfc_rx_monitor_open(struct inode *inode, struct file *file)
+{
+	struct lpfc_rx_monitor_debug *debug;
+	int rc = -ENOMEM;
+
+	debug = kmalloc(sizeof(*debug), GFP_KERNEL);
+	if (!debug)
+		goto out;
+
+	debug->buffer = vmalloc(MAX_DEBUGFS_RX_INFO_SIZE);
+	if (!debug->buffer) {
+		kfree(debug);
+		goto out;
+	}
+
+	debug->i_private = inode->i_private;
+	file->private_data = debug;
+
+	rc = 0;
+out:
+	return rc;
+}
+
+static ssize_t
+lpfc_rx_monitor_read(struct file *file, char __user *buf, size_t nbytes,
+		     loff_t *ppos)
+{
+	struct lpfc_rx_monitor_debug *debug = file->private_data;
+	struct lpfc_hba *phba = (struct lpfc_hba *)debug->i_private;
+	char *buffer = debug->buffer;
+
+	if (!phba->rx_monitor) {
+		scnprintf(buffer, MAX_DEBUGFS_RX_INFO_SIZE,
+			  "Rx Monitor Info is empty.\n");
+	} else {
+		lpfc_rx_monitor_report(phba, phba->rx_monitor, buffer,
+				       MAX_DEBUGFS_RX_INFO_SIZE,
+				       LPFC_MAX_RXMONITOR_ENTRY);
+	}
+
+	return simple_read_from_buffer(buf, nbytes, ppos, buffer,
+				       strlen(buffer));
+}
+
+static int
+lpfc_rx_monitor_release(struct inode *inode, struct file *file)
+{
+	struct lpfc_rx_monitor_debug *debug = file->private_data;
+
+	vfree(debug->buffer);
+	kfree(debug);
+
+	return 0;
+}
+
+#undef lpfc_debugfs_op_disc_trc
+static const struct file_operations lpfc_debugfs_op_disc_trc = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_disc_trc_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.release =      lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_nodelist
+static const struct file_operations lpfc_debugfs_op_nodelist = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_nodelist_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.release =      lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_multixripools
+static const struct file_operations lpfc_debugfs_op_multixripools = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_multixripools_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.write =	lpfc_debugfs_multixripools_write,
+	.release =      lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_hbqinfo
+static const struct file_operations lpfc_debugfs_op_hbqinfo = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_hbqinfo_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.release =      lpfc_debugfs_release,
+};
+
+#ifdef LPFC_HDWQ_LOCK_STAT
+#undef lpfc_debugfs_op_lockstat
+static const struct file_operations lpfc_debugfs_op_lockstat = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_lockstat_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.write =        lpfc_debugfs_lockstat_write,
+	.release =      lpfc_debugfs_release,
+};
+#endif
+
+#undef lpfc_debugfs_ras_log
+static const struct file_operations lpfc_debugfs_ras_log = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_ras_log_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.release =      lpfc_debugfs_ras_log_release,
+};
+
+#undef lpfc_debugfs_op_dumpHBASlim
+static const struct file_operations lpfc_debugfs_op_dumpHBASlim = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_dumpHBASlim_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.release =      lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_dumpHostSlim
+static const struct file_operations lpfc_debugfs_op_dumpHostSlim = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_dumpHostSlim_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.release =      lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_nvmestat
+static const struct file_operations lpfc_debugfs_op_nvmestat = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_nvmestat_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.write =	lpfc_debugfs_nvmestat_write,
+	.release =      lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_scsistat
+static const struct file_operations lpfc_debugfs_op_scsistat = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_scsistat_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.write =	lpfc_debugfs_scsistat_write,
+	.release =      lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_ioktime
+static const struct file_operations lpfc_debugfs_op_ioktime = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_ioktime_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.write =	lpfc_debugfs_ioktime_write,
+	.release =      lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_nvmeio_trc
+static const struct file_operations lpfc_debugfs_op_nvmeio_trc = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_nvmeio_trc_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.write =	lpfc_debugfs_nvmeio_trc_write,
+	.release =      lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_hdwqstat
+static const struct file_operations lpfc_debugfs_op_hdwqstat = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_hdwqstat_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.write =	lpfc_debugfs_hdwqstat_write,
+	.release =      lpfc_debugfs_release,
+};
+
+#undef lpfc_debugfs_op_dif_err
+static const struct file_operations lpfc_debugfs_op_dif_err = {
+	.owner =	THIS_MODULE,
+	.open =		simple_open,
+	.llseek =	lpfc_debugfs_lseek,
+	.read =		lpfc_debugfs_dif_err_read,
+	.write =	lpfc_debugfs_dif_err_write,
+	.release =	lpfc_debugfs_dif_err_release,
+};
+
+#undef lpfc_debugfs_op_slow_ring_trc
+static const struct file_operations lpfc_debugfs_op_slow_ring_trc = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_debugfs_slow_ring_trc_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_debugfs_read,
+	.release =      lpfc_debugfs_release,
+};
+
+static struct dentry *lpfc_debugfs_root = NULL;
+static atomic_t lpfc_debugfs_hba_count;
+
+/*
+ * File operations for the iDiag debugfs
+ */
+#undef lpfc_idiag_op_pciCfg
+static const struct file_operations lpfc_idiag_op_pciCfg = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_idiag_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_idiag_pcicfg_read,
+	.write =        lpfc_idiag_pcicfg_write,
+	.release =      lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_barAcc
+static const struct file_operations lpfc_idiag_op_barAcc = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_idiag_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_idiag_baracc_read,
+	.write =        lpfc_idiag_baracc_write,
+	.release =      lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_queInfo
+static const struct file_operations lpfc_idiag_op_queInfo = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_idiag_open,
+	.read =         lpfc_idiag_queinfo_read,
+	.release =      lpfc_idiag_release,
+};
+
+#undef lpfc_idiag_op_queAcc
+static const struct file_operations lpfc_idiag_op_queAcc = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_idiag_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_idiag_queacc_read,
+	.write =        lpfc_idiag_queacc_write,
+	.release =      lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_drbAcc
+static const struct file_operations lpfc_idiag_op_drbAcc = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_idiag_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_idiag_drbacc_read,
+	.write =        lpfc_idiag_drbacc_write,
+	.release =      lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_ctlAcc
+static const struct file_operations lpfc_idiag_op_ctlAcc = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_idiag_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_idiag_ctlacc_read,
+	.write =        lpfc_idiag_ctlacc_write,
+	.release =      lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_mbxAcc
+static const struct file_operations lpfc_idiag_op_mbxAcc = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_idiag_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_idiag_mbxacc_read,
+	.write =        lpfc_idiag_mbxacc_write,
+	.release =      lpfc_idiag_cmd_release,
+};
+
+#undef lpfc_idiag_op_extAcc
+static const struct file_operations lpfc_idiag_op_extAcc = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_idiag_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_idiag_extacc_read,
+	.write =        lpfc_idiag_extacc_write,
+	.release =      lpfc_idiag_cmd_release,
+};
+#undef lpfc_cgn_buffer_op
+static const struct file_operations lpfc_cgn_buffer_op = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_cgn_buffer_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_cgn_buffer_read,
+	.release =      lpfc_cgn_buffer_release,
+};
+
+#undef lpfc_rx_monitor_op
+static const struct file_operations lpfc_rx_monitor_op = {
+	.owner =        THIS_MODULE,
+	.open =         lpfc_rx_monitor_open,
+	.llseek =       lpfc_debugfs_lseek,
+	.read =         lpfc_rx_monitor_read,
+	.release =      lpfc_rx_monitor_release,
+};
+#endif
+
+/* lpfc_idiag_mbxacc_dump_bsg_mbox - idiag debugfs dump bsg mailbox command
+ * @phba: Pointer to HBA context object.
+ * @dmabuf: Pointer to a DMA buffer descriptor.
+ *
+ * Description:
+ * This routine dump a bsg pass-through non-embedded mailbox command with
+ * external buffer.
+ **/
+void
+lpfc_idiag_mbxacc_dump_bsg_mbox(struct lpfc_hba *phba, enum nemb_type nemb_tp,
+				enum mbox_type mbox_tp, enum dma_type dma_tp,
+				enum sta_type sta_tp,
+				struct lpfc_dmabuf *dmabuf, uint32_t ext_buf)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	uint32_t *mbx_mbox_cmd, *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt;
+	char line_buf[LPFC_MBX_ACC_LBUF_SZ];
+	int len = 0;
+	uint32_t do_dump = 0;
+	uint32_t *pword;
+	uint32_t i;
+
+	if (idiag.cmd.opcode != LPFC_IDIAG_BSG_MBXACC_DP)
+		return;
+
+	mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+	mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+	mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+	mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+	if (!(*mbx_dump_map & LPFC_MBX_DMP_ALL) ||
+	    (*mbx_dump_cnt == 0) ||
+	    (*mbx_word_cnt == 0))
+		return;
+
+	if (*mbx_mbox_cmd != 0x9B)
+		return;
+
+	if ((mbox_tp == mbox_rd) && (dma_tp == dma_mbox)) {
+		if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_MBX) {
+			do_dump |= LPFC_BSG_DMP_MBX_RD_MBX;
+			pr_err("\nRead mbox command (x%x), "
+			       "nemb:0x%x, extbuf_cnt:%d:\n",
+			       sta_tp, nemb_tp, ext_buf);
+		}
+	}
+	if ((mbox_tp == mbox_rd) && (dma_tp == dma_ebuf)) {
+		if (*mbx_dump_map & LPFC_BSG_DMP_MBX_RD_BUF) {
+			do_dump |= LPFC_BSG_DMP_MBX_RD_BUF;
+			pr_err("\nRead mbox buffer (x%x), "
+			       "nemb:0x%x, extbuf_seq:%d:\n",
+			       sta_tp, nemb_tp, ext_buf);
+		}
+	}
+	if ((mbox_tp == mbox_wr) && (dma_tp == dma_mbox)) {
+		if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_MBX) {
+			do_dump |= LPFC_BSG_DMP_MBX_WR_MBX;
+			pr_err("\nWrite mbox command (x%x), "
+			       "nemb:0x%x, extbuf_cnt:%d:\n",
+			       sta_tp, nemb_tp, ext_buf);
+		}
+	}
+	if ((mbox_tp == mbox_wr) && (dma_tp == dma_ebuf)) {
+		if (*mbx_dump_map & LPFC_BSG_DMP_MBX_WR_BUF) {
+			do_dump |= LPFC_BSG_DMP_MBX_WR_BUF;
+			pr_err("\nWrite mbox buffer (x%x), "
+			       "nemb:0x%x, extbuf_seq:%d:\n",
+			       sta_tp, nemb_tp, ext_buf);
+		}
+	}
+
+	/* dump buffer content */
+	if (do_dump) {
+		pword = (uint32_t *)dmabuf->virt;
+		for (i = 0; i < *mbx_word_cnt; i++) {
+			if (!(i % 8)) {
+				if (i != 0)
+					pr_err("%s\n", line_buf);
+				len = 0;
+				len += scnprintf(line_buf+len,
+						LPFC_MBX_ACC_LBUF_SZ-len,
+						"%03d: ", i);
+			}
+			len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
+					"%08x ", (uint32_t)*pword);
+			pword++;
+		}
+		if ((i - 1) % 8)
+			pr_err("%s\n", line_buf);
+		(*mbx_dump_cnt)--;
+	}
+
+	/* Clean out command structure on reaching dump count */
+	if (*mbx_dump_cnt == 0)
+		memset(&idiag, 0, sizeof(idiag));
+	return;
+#endif
+}
+
+/* lpfc_idiag_mbxacc_dump_issue_mbox - idiag debugfs dump issue mailbox command
+ * @phba: Pointer to HBA context object.
+ * @dmabuf: Pointer to a DMA buffer descriptor.
+ *
+ * Description:
+ * This routine dump a pass-through non-embedded mailbox command from issue
+ * mailbox command.
+ **/
+void
+lpfc_idiag_mbxacc_dump_issue_mbox(struct lpfc_hba *phba, MAILBOX_t *pmbox)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	uint32_t *mbx_dump_map, *mbx_dump_cnt, *mbx_word_cnt, *mbx_mbox_cmd;
+	char line_buf[LPFC_MBX_ACC_LBUF_SZ];
+	int len = 0;
+	uint32_t *pword;
+	uint8_t *pbyte;
+	uint32_t i, j;
+
+	if (idiag.cmd.opcode != LPFC_IDIAG_CMD_MBXACC_DP)
+		return;
+
+	mbx_mbox_cmd = &idiag.cmd.data[IDIAG_MBXACC_MBCMD_INDX];
+	mbx_dump_map = &idiag.cmd.data[IDIAG_MBXACC_DPMAP_INDX];
+	mbx_dump_cnt = &idiag.cmd.data[IDIAG_MBXACC_DPCNT_INDX];
+	mbx_word_cnt = &idiag.cmd.data[IDIAG_MBXACC_WDCNT_INDX];
+
+	if (!(*mbx_dump_map & LPFC_MBX_DMP_MBX_ALL) ||
+	    (*mbx_dump_cnt == 0) ||
+	    (*mbx_word_cnt == 0))
+		return;
+
+	if ((*mbx_mbox_cmd != LPFC_MBX_ALL_CMD) &&
+	    (*mbx_mbox_cmd != pmbox->mbxCommand))
+		return;
+
+	/* dump buffer content */
+	if (*mbx_dump_map & LPFC_MBX_DMP_MBX_WORD) {
+		pr_err("Mailbox command:0x%x dump by word:\n",
+		       pmbox->mbxCommand);
+		pword = (uint32_t *)pmbox;
+		for (i = 0; i < *mbx_word_cnt; i++) {
+			if (!(i % 8)) {
+				if (i != 0)
+					pr_err("%s\n", line_buf);
+				len = 0;
+				memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
+				len += scnprintf(line_buf+len,
+						LPFC_MBX_ACC_LBUF_SZ-len,
+						"%03d: ", i);
+			}
+			len += scnprintf(line_buf+len, LPFC_MBX_ACC_LBUF_SZ-len,
+					"%08x ",
+					((uint32_t)*pword) & 0xffffffff);
+			pword++;
+		}
+		if ((i - 1) % 8)
+			pr_err("%s\n", line_buf);
+		pr_err("\n");
+	}
+	if (*mbx_dump_map & LPFC_MBX_DMP_MBX_BYTE) {
+		pr_err("Mailbox command:0x%x dump by byte:\n",
+		       pmbox->mbxCommand);
+		pbyte = (uint8_t *)pmbox;
+		for (i = 0; i < *mbx_word_cnt; i++) {
+			if (!(i % 8)) {
+				if (i != 0)
+					pr_err("%s\n", line_buf);
+				len = 0;
+				memset(line_buf, 0, LPFC_MBX_ACC_LBUF_SZ);
+				len += scnprintf(line_buf+len,
+						LPFC_MBX_ACC_LBUF_SZ-len,
+						"%03d: ", i);
+			}
+			for (j = 0; j < 4; j++) {
+				len += scnprintf(line_buf+len,
+						LPFC_MBX_ACC_LBUF_SZ-len,
+						"%02x",
+						((uint8_t)*pbyte) & 0xff);
+				pbyte++;
+			}
+			len += scnprintf(line_buf+len,
+					LPFC_MBX_ACC_LBUF_SZ-len, " ");
+		}
+		if ((i - 1) % 8)
+			pr_err("%s\n", line_buf);
+		pr_err("\n");
+	}
+	(*mbx_dump_cnt)--;
+
+	/* Clean out command structure on reaching dump count */
+	if (*mbx_dump_cnt == 0)
+		memset(&idiag, 0, sizeof(idiag));
+	return;
+#endif
+}
+
+/**
+ * lpfc_debugfs_initialize - Initialize debugfs for a vport
+ * @vport: The vport pointer to initialize.
+ *
+ * Description:
+ * When Debugfs is configured this routine sets up the lpfc debugfs file system.
+ * If not already created, this routine will create the lpfc directory, and
+ * lpfcX directory (for this HBA), and vportX directory for this vport. It will
+ * also create each file used to access lpfc specific debugfs information.
+ **/
+inline void
+lpfc_debugfs_initialize(struct lpfc_vport *vport)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	struct lpfc_hba   *phba = vport->phba;
+	char name[64];
+	uint32_t num, i;
+	bool pport_setup = false;
+
+	if (!lpfc_debugfs_enable)
+		return;
+
+	/* Setup lpfc root directory */
+	if (!lpfc_debugfs_root) {
+		lpfc_debugfs_root = debugfs_create_dir("lpfc", NULL);
+		atomic_set(&lpfc_debugfs_hba_count, 0);
+	}
+	if (!lpfc_debugfs_start_time)
+		lpfc_debugfs_start_time = jiffies;
+
+	/* Setup funcX directory for specific HBA PCI function */
+	snprintf(name, sizeof(name), "fn%d", phba->brd_no);
+	if (!phba->hba_debugfs_root) {
+		pport_setup = true;
+		phba->hba_debugfs_root =
+			debugfs_create_dir(name, lpfc_debugfs_root);
+		atomic_inc(&lpfc_debugfs_hba_count);
+		atomic_set(&phba->debugfs_vport_count, 0);
+
+		/* Multi-XRI pools */
+		snprintf(name, sizeof(name), "multixripools");
+		phba->debug_multixri_pools =
+			debugfs_create_file(name, S_IFREG | 0644,
+					    phba->hba_debugfs_root,
+					    phba,
+					    &lpfc_debugfs_op_multixripools);
+		if (IS_ERR(phba->debug_multixri_pools)) {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+					 "0527 Cannot create debugfs multixripools\n");
+			goto debug_failed;
+		}
+
+		/* Congestion Info Buffer */
+		scnprintf(name, sizeof(name), "cgn_buffer");
+		phba->debug_cgn_buffer =
+			debugfs_create_file(name, S_IFREG | 0644,
+					    phba->hba_debugfs_root,
+					    phba, &lpfc_cgn_buffer_op);
+		if (IS_ERR(phba->debug_cgn_buffer)) {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+					 "6527 Cannot create debugfs "
+					 "cgn_buffer\n");
+			goto debug_failed;
+		}
+
+		/* RX Monitor */
+		scnprintf(name, sizeof(name), "rx_monitor");
+		phba->debug_rx_monitor =
+			debugfs_create_file(name, S_IFREG | 0644,
+					    phba->hba_debugfs_root,
+					    phba, &lpfc_rx_monitor_op);
+		if (IS_ERR(phba->debug_rx_monitor)) {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+					 "6528 Cannot create debugfs "
+					 "rx_monitor\n");
+			goto debug_failed;
+		}
+
+		/* RAS log */
+		snprintf(name, sizeof(name), "ras_log");
+		phba->debug_ras_log =
+			debugfs_create_file(name, 0644,
+					    phba->hba_debugfs_root,
+					    phba, &lpfc_debugfs_ras_log);
+		if (IS_ERR(phba->debug_ras_log)) {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+					 "6148 Cannot create debugfs"
+					 " ras_log\n");
+			goto debug_failed;
+		}
+
+		/* Setup hbqinfo */
+		snprintf(name, sizeof(name), "hbqinfo");
+		phba->debug_hbqinfo =
+			debugfs_create_file(name, S_IFREG | 0644,
+					    phba->hba_debugfs_root,
+					    phba, &lpfc_debugfs_op_hbqinfo);
+
+#ifdef LPFC_HDWQ_LOCK_STAT
+		/* Setup lockstat */
+		snprintf(name, sizeof(name), "lockstat");
+		phba->debug_lockstat =
+			debugfs_create_file(name, S_IFREG | 0644,
+					    phba->hba_debugfs_root,
+					    phba, &lpfc_debugfs_op_lockstat);
+		if (IS_ERR(phba->debug_lockstat)) {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+					 "4610 Can't create debugfs lockstat\n");
+			goto debug_failed;
+		}
+#endif
+
+		/* Setup dumpHBASlim */
+		if (phba->sli_rev < LPFC_SLI_REV4) {
+			snprintf(name, sizeof(name), "dumpHBASlim");
+			phba->debug_dumpHBASlim =
+				debugfs_create_file(name,
+					S_IFREG|S_IRUGO|S_IWUSR,
+					phba->hba_debugfs_root,
+					phba, &lpfc_debugfs_op_dumpHBASlim);
+		} else
+			phba->debug_dumpHBASlim = NULL;
+
+		/* Setup dumpHostSlim */
+		if (phba->sli_rev < LPFC_SLI_REV4) {
+			snprintf(name, sizeof(name), "dumpHostSlim");
+			phba->debug_dumpHostSlim =
+				debugfs_create_file(name,
+					S_IFREG|S_IRUGO|S_IWUSR,
+					phba->hba_debugfs_root,
+					phba, &lpfc_debugfs_op_dumpHostSlim);
+		} else
+			phba->debug_dumpHostSlim = NULL;
+
+		/* Setup DIF Error Injections */
+		snprintf(name, sizeof(name), "InjErrLBA");
+		phba->debug_InjErrLBA =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+			phba->hba_debugfs_root,
+			phba, &lpfc_debugfs_op_dif_err);
+		phba->lpfc_injerr_lba = LPFC_INJERR_LBA_OFF;
+
+		snprintf(name, sizeof(name), "InjErrNPortID");
+		phba->debug_InjErrNPortID =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+			phba->hba_debugfs_root,
+			phba, &lpfc_debugfs_op_dif_err);
+
+		snprintf(name, sizeof(name), "InjErrWWPN");
+		phba->debug_InjErrWWPN =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+			phba->hba_debugfs_root,
+			phba, &lpfc_debugfs_op_dif_err);
+
+		snprintf(name, sizeof(name), "writeGuardInjErr");
+		phba->debug_writeGuard =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+			phba->hba_debugfs_root,
+			phba, &lpfc_debugfs_op_dif_err);
+
+		snprintf(name, sizeof(name), "writeAppInjErr");
+		phba->debug_writeApp =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+			phba->hba_debugfs_root,
+			phba, &lpfc_debugfs_op_dif_err);
+
+		snprintf(name, sizeof(name), "writeRefInjErr");
+		phba->debug_writeRef =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+			phba->hba_debugfs_root,
+			phba, &lpfc_debugfs_op_dif_err);
+
+		snprintf(name, sizeof(name), "readGuardInjErr");
+		phba->debug_readGuard =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+			phba->hba_debugfs_root,
+			phba, &lpfc_debugfs_op_dif_err);
+
+		snprintf(name, sizeof(name), "readAppInjErr");
+		phba->debug_readApp =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+			phba->hba_debugfs_root,
+			phba, &lpfc_debugfs_op_dif_err);
+
+		snprintf(name, sizeof(name), "readRefInjErr");
+		phba->debug_readRef =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+			phba->hba_debugfs_root,
+			phba, &lpfc_debugfs_op_dif_err);
+
+		/* Setup slow ring trace */
+		if (lpfc_debugfs_max_slow_ring_trc) {
+			num = lpfc_debugfs_max_slow_ring_trc - 1;
+			if (num & lpfc_debugfs_max_slow_ring_trc) {
+				/* Change to be a power of 2 */
+				num = lpfc_debugfs_max_slow_ring_trc;
+				i = 0;
+				while (num > 1) {
+					num = num >> 1;
+					i++;
+				}
+				lpfc_debugfs_max_slow_ring_trc = (1 << i);
+				pr_err("lpfc_debugfs_max_disc_trc changed to "
+				       "%d\n", lpfc_debugfs_max_disc_trc);
+			}
+		}
+
+		snprintf(name, sizeof(name), "slow_ring_trace");
+		phba->debug_slow_ring_trc =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+				 phba->hba_debugfs_root,
+				 phba, &lpfc_debugfs_op_slow_ring_trc);
+		if (!phba->slow_ring_trc) {
+			phba->slow_ring_trc = kcalloc(
+				lpfc_debugfs_max_slow_ring_trc,
+				sizeof(struct lpfc_debugfs_trc),
+				GFP_KERNEL);
+			if (!phba->slow_ring_trc) {
+				lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+						 "0416 Cannot create debugfs "
+						 "slow_ring buffer\n");
+				goto debug_failed;
+			}
+			atomic_set(&phba->slow_ring_trc_cnt, 0);
+		}
+
+		snprintf(name, sizeof(name), "nvmeio_trc");
+		phba->debug_nvmeio_trc =
+			debugfs_create_file(name, 0644,
+					    phba->hba_debugfs_root,
+					    phba, &lpfc_debugfs_op_nvmeio_trc);
+
+		atomic_set(&phba->nvmeio_trc_cnt, 0);
+		if (lpfc_debugfs_max_nvmeio_trc) {
+			num = lpfc_debugfs_max_nvmeio_trc - 1;
+			if (num & lpfc_debugfs_max_disc_trc) {
+				/* Change to be a power of 2 */
+				num = lpfc_debugfs_max_nvmeio_trc;
+				i = 0;
+				while (num > 1) {
+					num = num >> 1;
+					i++;
+				}
+				lpfc_debugfs_max_nvmeio_trc = (1 << i);
+				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+						"0575 lpfc_debugfs_max_nvmeio_trc "
+						"changed to %d\n",
+						lpfc_debugfs_max_nvmeio_trc);
+			}
+			phba->nvmeio_trc_size = lpfc_debugfs_max_nvmeio_trc;
+
+			/* Allocate trace buffer and initialize */
+			phba->nvmeio_trc = kzalloc(
+				(sizeof(struct lpfc_debugfs_nvmeio_trc) *
+				phba->nvmeio_trc_size), GFP_KERNEL);
+
+			if (!phba->nvmeio_trc) {
+				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+						"0576 Cannot create debugfs "
+						"nvmeio_trc buffer\n");
+				goto nvmeio_off;
+			}
+			phba->nvmeio_trc_on = 1;
+			phba->nvmeio_trc_output_idx = 0;
+			phba->nvmeio_trc = NULL;
+		} else {
+nvmeio_off:
+			phba->nvmeio_trc_size = 0;
+			phba->nvmeio_trc_on = 0;
+			phba->nvmeio_trc_output_idx = 0;
+			phba->nvmeio_trc = NULL;
+		}
+	}
+
+	snprintf(name, sizeof(name), "vport%d", vport->vpi);
+	if (!vport->vport_debugfs_root) {
+		vport->vport_debugfs_root =
+			debugfs_create_dir(name, phba->hba_debugfs_root);
+		atomic_inc(&phba->debugfs_vport_count);
+	}
+
+	if (lpfc_debugfs_max_disc_trc) {
+		num = lpfc_debugfs_max_disc_trc - 1;
+		if (num & lpfc_debugfs_max_disc_trc) {
+			/* Change to be a power of 2 */
+			num = lpfc_debugfs_max_disc_trc;
+			i = 0;
+			while (num > 1) {
+				num = num >> 1;
+				i++;
+			}
+			lpfc_debugfs_max_disc_trc = (1 << i);
+			pr_err("lpfc_debugfs_max_disc_trc changed to %d\n",
+			       lpfc_debugfs_max_disc_trc);
+		}
+	}
+
+	vport->disc_trc = kzalloc(
+		(sizeof(struct lpfc_debugfs_trc) * lpfc_debugfs_max_disc_trc),
+		GFP_KERNEL);
+
+	if (!vport->disc_trc) {
+		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+				 "0418 Cannot create debugfs disc trace "
+				 "buffer\n");
+		goto debug_failed;
+	}
+	atomic_set(&vport->disc_trc_cnt, 0);
+
+	snprintf(name, sizeof(name), "discovery_trace");
+	vport->debug_disc_trc =
+		debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+				 vport->vport_debugfs_root,
+				 vport, &lpfc_debugfs_op_disc_trc);
+	snprintf(name, sizeof(name), "nodelist");
+	vport->debug_nodelist =
+		debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+				 vport->vport_debugfs_root,
+				 vport, &lpfc_debugfs_op_nodelist);
+
+	snprintf(name, sizeof(name), "nvmestat");
+	vport->debug_nvmestat =
+		debugfs_create_file(name, 0644,
+				    vport->vport_debugfs_root,
+				    vport, &lpfc_debugfs_op_nvmestat);
+
+	snprintf(name, sizeof(name), "scsistat");
+	vport->debug_scsistat =
+		debugfs_create_file(name, 0644,
+				    vport->vport_debugfs_root,
+				    vport, &lpfc_debugfs_op_scsistat);
+	if (IS_ERR(vport->debug_scsistat)) {
+		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+				 "4611 Cannot create debugfs scsistat\n");
+		goto debug_failed;
+	}
+
+	snprintf(name, sizeof(name), "ioktime");
+	vport->debug_ioktime =
+		debugfs_create_file(name, 0644,
+				    vport->vport_debugfs_root,
+				    vport, &lpfc_debugfs_op_ioktime);
+	if (IS_ERR(vport->debug_ioktime)) {
+		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+				 "0815 Cannot create debugfs ioktime\n");
+		goto debug_failed;
+	}
+
+	snprintf(name, sizeof(name), "hdwqstat");
+	vport->debug_hdwqstat =
+		debugfs_create_file(name, 0644,
+				    vport->vport_debugfs_root,
+				    vport, &lpfc_debugfs_op_hdwqstat);
+
+	/*
+	 * The following section is for additional directories/files for the
+	 * physical port.
+	 */
+
+	if (!pport_setup)
+		goto debug_failed;
+
+	/*
+	 * iDiag debugfs root entry points for SLI4 device only
+	 */
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		goto debug_failed;
+
+	snprintf(name, sizeof(name), "iDiag");
+	if (!phba->idiag_root) {
+		phba->idiag_root =
+			debugfs_create_dir(name, phba->hba_debugfs_root);
+		/* Initialize iDiag data structure */
+		memset(&idiag, 0, sizeof(idiag));
+	}
+
+	/* iDiag read PCI config space */
+	snprintf(name, sizeof(name), "pciCfg");
+	if (!phba->idiag_pci_cfg) {
+		phba->idiag_pci_cfg =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+				phba->idiag_root, phba, &lpfc_idiag_op_pciCfg);
+		idiag.offset.last_rd = 0;
+	}
+
+	/* iDiag PCI BAR access */
+	snprintf(name, sizeof(name), "barAcc");
+	if (!phba->idiag_bar_acc) {
+		phba->idiag_bar_acc =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+				phba->idiag_root, phba, &lpfc_idiag_op_barAcc);
+		idiag.offset.last_rd = 0;
+	}
+
+	/* iDiag get PCI function queue information */
+	snprintf(name, sizeof(name), "queInfo");
+	if (!phba->idiag_que_info) {
+		phba->idiag_que_info =
+			debugfs_create_file(name, S_IFREG|S_IRUGO,
+			phba->idiag_root, phba, &lpfc_idiag_op_queInfo);
+	}
+
+	/* iDiag access PCI function queue */
+	snprintf(name, sizeof(name), "queAcc");
+	if (!phba->idiag_que_acc) {
+		phba->idiag_que_acc =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+				phba->idiag_root, phba, &lpfc_idiag_op_queAcc);
+	}
+
+	/* iDiag access PCI function doorbell registers */
+	snprintf(name, sizeof(name), "drbAcc");
+	if (!phba->idiag_drb_acc) {
+		phba->idiag_drb_acc =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+				phba->idiag_root, phba, &lpfc_idiag_op_drbAcc);
+	}
+
+	/* iDiag access PCI function control registers */
+	snprintf(name, sizeof(name), "ctlAcc");
+	if (!phba->idiag_ctl_acc) {
+		phba->idiag_ctl_acc =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+				phba->idiag_root, phba, &lpfc_idiag_op_ctlAcc);
+	}
+
+	/* iDiag access mbox commands */
+	snprintf(name, sizeof(name), "mbxAcc");
+	if (!phba->idiag_mbx_acc) {
+		phba->idiag_mbx_acc =
+			debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
+				phba->idiag_root, phba, &lpfc_idiag_op_mbxAcc);
+	}
+
+	/* iDiag extents access commands */
+	if (phba->sli4_hba.extents_in_use) {
+		snprintf(name, sizeof(name), "extAcc");
+		if (!phba->idiag_ext_acc) {
+			phba->idiag_ext_acc =
+				debugfs_create_file(name,
+						    S_IFREG|S_IRUGO|S_IWUSR,
+						    phba->idiag_root, phba,
+						    &lpfc_idiag_op_extAcc);
+		}
+	}
+
+debug_failed:
+	return;
+#endif
+}
+
+/**
+ * lpfc_debugfs_terminate -  Tear down debugfs infrastructure for this vport
+ * @vport: The vport pointer to remove from debugfs.
+ *
+ * Description:
+ * When Debugfs is configured this routine removes debugfs file system elements
+ * that are specific to this vport. It also checks to see if there are any
+ * users left for the debugfs directories associated with the HBA and driver. If
+ * this is the last user of the HBA directory or driver directory then it will
+ * remove those from the debugfs infrastructure as well.
+ **/
+inline void
+lpfc_debugfs_terminate(struct lpfc_vport *vport)
+{
+#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
+	struct lpfc_hba   *phba = vport->phba;
+
+	kfree(vport->disc_trc);
+	vport->disc_trc = NULL;
+
+	debugfs_remove(vport->debug_disc_trc); /* discovery_trace */
+	vport->debug_disc_trc = NULL;
+
+	debugfs_remove(vport->debug_nodelist); /* nodelist */
+	vport->debug_nodelist = NULL;
+
+	debugfs_remove(vport->debug_nvmestat); /* nvmestat */
+	vport->debug_nvmestat = NULL;
+
+	debugfs_remove(vport->debug_scsistat); /* scsistat */
+	vport->debug_scsistat = NULL;
+
+	debugfs_remove(vport->debug_ioktime); /* ioktime */
+	vport->debug_ioktime = NULL;
+
+	debugfs_remove(vport->debug_hdwqstat); /* hdwqstat */
+	vport->debug_hdwqstat = NULL;
+
+	if (vport->vport_debugfs_root) {
+		debugfs_remove(vport->vport_debugfs_root); /* vportX */
+		vport->vport_debugfs_root = NULL;
+		atomic_dec(&phba->debugfs_vport_count);
+	}
+
+	if (atomic_read(&phba->debugfs_vport_count) == 0) {
+
+		debugfs_remove(phba->debug_multixri_pools); /* multixripools*/
+		phba->debug_multixri_pools = NULL;
+
+		debugfs_remove(phba->debug_hbqinfo); /* hbqinfo */
+		phba->debug_hbqinfo = NULL;
+
+		debugfs_remove(phba->debug_cgn_buffer);
+		phba->debug_cgn_buffer = NULL;
+
+		debugfs_remove(phba->debug_rx_monitor);
+		phba->debug_rx_monitor = NULL;
+
+		debugfs_remove(phba->debug_ras_log);
+		phba->debug_ras_log = NULL;
+
+#ifdef LPFC_HDWQ_LOCK_STAT
+		debugfs_remove(phba->debug_lockstat); /* lockstat */
+		phba->debug_lockstat = NULL;
+#endif
+		debugfs_remove(phba->debug_dumpHBASlim); /* HBASlim */
+		phba->debug_dumpHBASlim = NULL;
+
+		debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
+		phba->debug_dumpHostSlim = NULL;
+
+		debugfs_remove(phba->debug_InjErrLBA); /* InjErrLBA */
+		phba->debug_InjErrLBA = NULL;
+
+		debugfs_remove(phba->debug_InjErrNPortID);
+		phba->debug_InjErrNPortID = NULL;
+
+		debugfs_remove(phba->debug_InjErrWWPN); /* InjErrWWPN */
+		phba->debug_InjErrWWPN = NULL;
+
+		debugfs_remove(phba->debug_writeGuard); /* writeGuard */
+		phba->debug_writeGuard = NULL;
+
+		debugfs_remove(phba->debug_writeApp); /* writeApp */
+		phba->debug_writeApp = NULL;
+
+		debugfs_remove(phba->debug_writeRef); /* writeRef */
+		phba->debug_writeRef = NULL;
+
+		debugfs_remove(phba->debug_readGuard); /* readGuard */
+		phba->debug_readGuard = NULL;
+
+		debugfs_remove(phba->debug_readApp); /* readApp */
+		phba->debug_readApp = NULL;
+
+		debugfs_remove(phba->debug_readRef); /* readRef */
+		phba->debug_readRef = NULL;
+
+		kfree(phba->slow_ring_trc);
+		phba->slow_ring_trc = NULL;
+
+		/* slow_ring_trace */
+		debugfs_remove(phba->debug_slow_ring_trc);
+		phba->debug_slow_ring_trc = NULL;
+
+		debugfs_remove(phba->debug_nvmeio_trc);
+		phba->debug_nvmeio_trc = NULL;
+
+		kfree(phba->nvmeio_trc);
+		phba->nvmeio_trc = NULL;
+
+		/*
+		 * iDiag release
+		 */
+		if (phba->sli_rev == LPFC_SLI_REV4) {
+			/* iDiag extAcc */
+			debugfs_remove(phba->idiag_ext_acc);
+			phba->idiag_ext_acc = NULL;
+
+			/* iDiag mbxAcc */
+			debugfs_remove(phba->idiag_mbx_acc);
+			phba->idiag_mbx_acc = NULL;
+
+			/* iDiag ctlAcc */
+			debugfs_remove(phba->idiag_ctl_acc);
+			phba->idiag_ctl_acc = NULL;
+
+			/* iDiag drbAcc */
+			debugfs_remove(phba->idiag_drb_acc);
+			phba->idiag_drb_acc = NULL;
+
+			/* iDiag queAcc */
+			debugfs_remove(phba->idiag_que_acc);
+			phba->idiag_que_acc = NULL;
+
+			/* iDiag queInfo */
+			debugfs_remove(phba->idiag_que_info);
+			phba->idiag_que_info = NULL;
+
+			/* iDiag barAcc */
+			debugfs_remove(phba->idiag_bar_acc);
+			phba->idiag_bar_acc = NULL;
+
+			/* iDiag pciCfg */
+			debugfs_remove(phba->idiag_pci_cfg);
+			phba->idiag_pci_cfg = NULL;
+
+			/* Finally remove the iDiag debugfs root */
+			debugfs_remove(phba->idiag_root);
+			phba->idiag_root = NULL;
+		}
+
+		if (phba->hba_debugfs_root) {
+			debugfs_remove(phba->hba_debugfs_root); /* fnX */
+			phba->hba_debugfs_root = NULL;
+			atomic_dec(&lpfc_debugfs_hba_count);
+		}
+
+		if (atomic_read(&lpfc_debugfs_hba_count) == 0) {
+			debugfs_remove(lpfc_debugfs_root); /* lpfc */
+			lpfc_debugfs_root = NULL;
+		}
+	}
+#endif
+	return;
+}
+
+/*
+ * Driver debug utility routines outside of debugfs. The debug utility
+ * routines implemented here is intended to be used in the instrumented
+ * debug driver for debugging host or port issues.
+ */
+
+/**
+ * lpfc_debug_dump_all_queues - dump all the queues with a hba
+ * @phba: Pointer to HBA context object.
+ *
+ * This function dumps entries of all the queues asociated with the @phba.
+ **/
+void
+lpfc_debug_dump_all_queues(struct lpfc_hba *phba)
+{
+	int idx;
+
+	/*
+	 * Dump Work Queues (WQs)
+	 */
+	lpfc_debug_dump_wq(phba, DUMP_MBX, 0);
+	lpfc_debug_dump_wq(phba, DUMP_ELS, 0);
+	lpfc_debug_dump_wq(phba, DUMP_NVMELS, 0);
+
+	for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
+		lpfc_debug_dump_wq(phba, DUMP_IO, idx);
+
+	lpfc_debug_dump_hdr_rq(phba);
+	lpfc_debug_dump_dat_rq(phba);
+	/*
+	 * Dump Complete Queues (CQs)
+	 */
+	lpfc_debug_dump_cq(phba, DUMP_MBX, 0);
+	lpfc_debug_dump_cq(phba, DUMP_ELS, 0);
+	lpfc_debug_dump_cq(phba, DUMP_NVMELS, 0);
+
+	for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
+		lpfc_debug_dump_cq(phba, DUMP_IO, idx);
+
+	/*
+	 * Dump Event Queues (EQs)
+	 */
+	for (idx = 0; idx < phba->cfg_hdw_queue; idx++)
+		lpfc_debug_dump_hba_eq(phba, idx);
+}