text: /*******************************************************************
   * This file is part of the Emulex Linux Device Driver for         *
   * Fibre Channel Host Bus Adapters.                                *
   * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
   * EMULEX and SLI are trademarks of Emulex.                        *
   * www.emulex.com                                                  *
   * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   *                                                                 *
   * 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/ctype.h>
  #include <linux/delay.h>
  #include <linux/pci.h>
  #include <linux/interrupt.h>
  #include <linux/aer.h>
  #include <linux/gfp.h>
  #include <linux/kernel.h>
  
  #include <scsi/scsi.h>
  #include <scsi/scsi_device.h>
  #include <scsi/scsi_host.h>
  #include <scsi/scsi_tcq.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_scsi.h"
  #include "lpfc.h"
  #include "lpfc_logmsg.h"
  #include "lpfc_version.h"
  #include "lpfc_compat.h"
  #include "lpfc_crtn.h"
  #include "lpfc_vport.h"
  
  #define LPFC_DEF_DEVLOSS_TMO 30
  #define LPFC_MIN_DEVLOSS_TMO 1
  #define LPFC_MAX_DEVLOSS_TMO 255
  
  /**
   * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules
   * @incr: integer to convert.
   * @hdw: ascii string holding converted integer plus a string terminator.
   *
   * Description:
   * JEDEC Joint Electron Device Engineering Council.
   * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
   * character string. The string is then terminated with a NULL in byte 9.
   * Hex 0-9 becomes ascii '0' to '9'.
   * Hex a-f becomes ascii '=' to 'B' capital B.
   *
   * Notes:
   * Coded for 32 bit integers only.
   **/
  static void
  lpfc_jedec_to_ascii(int incr, char hdw[])
  {
  	int i, j;
  	for (i = 0; i < 8; i++) {
  		j = (incr & 0xf);
  		if (j <= 9)
  			hdw[7 - i] = 0x30 +  j;
  		 else
  			hdw[7 - i] = 0x61 + j - 10;
  		incr = (incr >> 4);
  	}
  	hdw[8] = 0;
  	return;
  }
  
  /**
   * lpfc_drvr_version_show - Return the Emulex driver string with version number
   * @dev: class unused variable.
   * @attr: device attribute, not used.
   * @buf: on return contains the module description text.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
  		       char *buf)
  {
  	return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
  }
  
  /**
   * lpfc_enable_fip_show - Return the fip mode of the HBA
   * @dev: class unused variable.
   * @attr: device attribute, not used.
   * @buf: on return contains the module description text.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr,
  		       char *buf)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	if (phba->hba_flag & HBA_FIP_SUPPORT)
  		return snprintf(buf, PAGE_SIZE, "1\n");
  	else
  		return snprintf(buf, PAGE_SIZE, "0\n");
  }
  
  static ssize_t
  lpfc_bg_info_show(struct device *dev, struct device_attribute *attr,
  		  char *buf)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	if (phba->cfg_enable_bg)
  		if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
  			return snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n");
  		else
  			return snprintf(buf, PAGE_SIZE,
  					"BlockGuard Not Supported\n");
  	else
  			return snprintf(buf, PAGE_SIZE,
  					"BlockGuard Disabled\n");
  }
  
  static ssize_t
  lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr,
  		       char *buf)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%llu\n",
  			(unsigned long long)phba->bg_guard_err_cnt);
  }
  
  static ssize_t
  lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr,
  			char *buf)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%llu\n",
  			(unsigned long long)phba->bg_apptag_err_cnt);
  }
  
  static ssize_t
  lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr,
  			char *buf)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%llu\n",
  			(unsigned long long)phba->bg_reftag_err_cnt);
  }
  
  /**
   * lpfc_info_show - Return some pci info about the host in ascii
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the formatted text from lpfc_info().
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_info_show(struct device *dev, struct device_attribute *attr,
  	       char *buf)
  {
  	struct Scsi_Host *host = class_to_shost(dev);
  
  	return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
  }
  
  /**
   * lpfc_serialnum_show - Return the hba serial number in ascii
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the formatted text serial number.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
  		    char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
  }
  
  /**
   * lpfc_temp_sensor_show - Return the temperature sensor level
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the formatted support level.
   *
   * Description:
   * Returns a number indicating the temperature sensor level currently
   * supported, zero or one in ascii.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
  		      char *buf)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
  }
  
  /**
   * lpfc_modeldesc_show - Return the model description of the hba
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the scsi vpd model description.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
  		    char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
  }
  
  /**
   * lpfc_modelname_show - Return the model name of the hba
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the scsi vpd model name.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
  		    char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
  }
  
  /**
   * lpfc_programtype_show - Return the program type of the hba
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the scsi vpd program type.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
  		      char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
  }
  
  /**
   * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the Menlo Maintenance sli flag.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%d\n",
  		(phba->sli.sli_flag & LPFC_MENLO_MAINT));
  }
  
  /**
   * lpfc_vportnum_show - Return the port number in ascii of the hba
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains scsi vpd program type.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
  		   char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
  }
  
  /**
   * lpfc_fwrev_show - Return the firmware rev running in the hba
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the scsi vpd program type.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
  		char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	char fwrev[32];
  
  	lpfc_decode_firmware_rev(phba, fwrev, 1);
  	return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
  }
  
  /**
   * lpfc_hdw_show - Return the jedec information about the hba
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the scsi vpd program type.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
  {
  	char hdw[9];
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	lpfc_vpd_t *vp = &phba->vpd;
  
  	lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
  	return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
  }
  
  /**
   * lpfc_option_rom_version_show - Return the adapter ROM FCode version
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the ROM and FCode ascii strings.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
  			     char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
  }
  
  /**
   * lpfc_state_show - Return the link state of the port
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains text describing the state of the link.
   *
   * Notes:
   * The switch statement has no default so zero will be returned.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
  		     char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	int  len = 0;
  
  	switch (phba->link_state) {
  	case LPFC_LINK_UNKNOWN:
  	case LPFC_WARM_START:
  	case LPFC_INIT_START:
  	case LPFC_INIT_MBX_CMDS:
  	case LPFC_LINK_DOWN:
  	case LPFC_HBA_ERROR:
  		if (phba->hba_flag & LINK_DISABLED)
  			len += snprintf(buf + len, PAGE_SIZE-len,
  				"Link Down - User disabled\n");
  		else
  			len += snprintf(buf + len, PAGE_SIZE-len,
  				"Link Down\n");
  		break;
  	case LPFC_LINK_UP:
  	case LPFC_CLEAR_LA:
  	case LPFC_HBA_READY:
  		len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
  
  		switch (vport->port_state) {
  		case LPFC_LOCAL_CFG_LINK:
  			len += snprintf(buf + len, PAGE_SIZE-len,
  					"Configuring Link\n");
  			break;
  		case LPFC_FDISC:
  		case LPFC_FLOGI:
  		case LPFC_FABRIC_CFG_LINK:
  		case LPFC_NS_REG:
  		case LPFC_NS_QRY:
  		case LPFC_BUILD_DISC_LIST:
  		case LPFC_DISC_AUTH:
  			len += snprintf(buf + len, PAGE_SIZE - len,
  					"Discovery\n");
  			break;
  		case LPFC_VPORT_READY:
  			len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n");
  			break;
  
  		case LPFC_VPORT_FAILED:
  			len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n");
  			break;
  
  		case LPFC_VPORT_UNKNOWN:
  			len += snprintf(buf + len, PAGE_SIZE - len,
  					"Unknown\n");
  			break;
  		}
  		if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
  			len += snprintf(buf + len, PAGE_SIZE-len,
  					"   Menlo Maint Mode\n");
  		else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
  			if (vport->fc_flag & FC_PUBLIC_LOOP)
  				len += snprintf(buf + len, PAGE_SIZE-len,
  						"   Public Loop\n");
  			else
  				len += snprintf(buf + len, PAGE_SIZE-len,
  						"   Private Loop\n");
  		} else {
  			if (vport->fc_flag & FC_FABRIC)
  				len += snprintf(buf + len, PAGE_SIZE-len,
  						"   Fabric\n");
  			else
  				len += snprintf(buf + len, PAGE_SIZE-len,
  						"   Point-2-Point\n");
  		}
  	}
  
  	return len;
  }
  
  /**
   * lpfc_link_state_store - Transition the link_state on an HBA port
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: one or more lpfc_polling_flags values.
   * @count: not used.
   *
   * Returns:
   * -EINVAL if the buffer is not "up" or "down"
   * return from link state change function if non-zero
   * length of the buf on success
   **/
  static ssize_t
  lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
  		const char *buf, size_t count)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	int status = -EINVAL;
  
  	if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
  			(phba->link_state == LPFC_LINK_DOWN))
  		status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
  	else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
  			(phba->link_state >= LPFC_LINK_UP))
  		status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT);
  
  	if (status == 0)
  		return strlen(buf);
  	else
  		return status;
  }
  
  /**
   * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the sum of fc mapped and unmapped.
   *
   * Description:
   * Returns the ascii text number of the sum of the fc mapped and unmapped
   * vport counts.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_num_discovered_ports_show(struct device *dev,
  			       struct device_attribute *attr, char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  
  	return snprintf(buf, PAGE_SIZE, "%d\n",
  			vport->fc_map_cnt + vport->fc_unmap_cnt);
  }
  
  /**
   * lpfc_issue_lip - Misnomer, name carried over from long ago
   * @shost: Scsi_Host pointer.
   *
   * Description:
   * Bring the link down gracefully then re-init the link. The firmware will
   * re-init the fiber channel interface as required. Does not issue a LIP.
   *
   * Returns:
   * -EPERM port offline or management commands are being blocked
   * -ENOMEM cannot allocate memory for the mailbox command
   * -EIO error sending the mailbox command
   * zero for success
   **/
  static int
  lpfc_issue_lip(struct Scsi_Host *shost)
  {
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	LPFC_MBOXQ_t *pmboxq;
  	int mbxstatus = MBXERR_ERROR;
  
  	if ((vport->fc_flag & FC_OFFLINE_MODE) ||
  	    (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
  		return -EPERM;
  
  	pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
  
  	if (!pmboxq)
  		return -ENOMEM;
  
  	memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
  	pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
  	pmboxq->u.mb.mbxOwner = OWN_HOST;
  
  	mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
  
  	if ((mbxstatus == MBX_SUCCESS) &&
  	    (pmboxq->u.mb.mbxStatus == 0 ||
  	     pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
  		memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
  		lpfc_init_link(phba, pmboxq, phba->cfg_topology,
  			       phba->cfg_link_speed);
  		mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq,
  						     phba->fc_ratov * 2);
  		if ((mbxstatus == MBX_SUCCESS) &&
  		    (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
  			lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
  					"2859 SLI authentication is required "
  					"for INIT_LINK but has not done yet\n");
  	}
  
  	lpfc_set_loopback_flag(phba);
  	if (mbxstatus != MBX_TIMEOUT)
  		mempool_free(pmboxq, phba->mbox_mem_pool);
  
  	if (mbxstatus == MBXERR_ERROR)
  		return -EIO;
  
  	return 0;
  }
  
  /**
   * lpfc_do_offline - Issues a mailbox command to bring the link down
   * @phba: lpfc_hba pointer.
   * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
   *
   * Notes:
   * Assumes any error from lpfc_do_offline() will be negative.
   * Can wait up to 5 seconds for the port ring buffers count
   * to reach zero, prints a warning if it is not zero and continues.
   * lpfc_workq_post_event() returns a non-zero return code if call fails.
   *
   * Returns:
   * -EIO error posting the event
   * zero for success
   **/
  static int
  lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
  {
  	struct completion online_compl;
  	struct lpfc_sli_ring *pring;
  	struct lpfc_sli *psli;
  	int status = 0;
  	int cnt = 0;
  	int i;
  	int rc;
  
  	init_completion(&online_compl);
  	rc = lpfc_workq_post_event(phba, &status, &online_compl,
  			      LPFC_EVT_OFFLINE_PREP);
  	if (rc == 0)
  		return -ENOMEM;
  
  	wait_for_completion(&online_compl);
  
  	if (status != 0)
  		return -EIO;
  
  	psli = &phba->sli;
  
  	/* Wait a little for things to settle down, but not
  	 * long enough for dev loss timeout to expire.
  	 */
  	for (i = 0; i < psli->num_rings; i++) {
  		pring = &psli->ring[i];
  		while (pring->txcmplq_cnt) {
  			msleep(10);
  			if (cnt++ > 500) {  /* 5 secs */
  				lpfc_printf_log(phba,
  					KERN_WARNING, LOG_INIT,
  					"0466 Outstanding IO when "
  					"bringing Adapter offline\n");
  				break;
  			}
  		}
  	}
  
  	init_completion(&online_compl);
  	rc = lpfc_workq_post_event(phba, &status, &online_compl, type);
  	if (rc == 0)
  		return -ENOMEM;
  
  	wait_for_completion(&online_compl);
  
  	if (status != 0)
  		return -EIO;
  
  	return 0;
  }
  
  /**
   * lpfc_selective_reset - Offline then onlines the port
   * @phba: lpfc_hba pointer.
   *
   * Description:
   * If the port is configured to allow a reset then the hba is brought
   * offline then online.
   *
   * Notes:
   * Assumes any error from lpfc_do_offline() will be negative.
   * Do not make this function static.
   *
   * Returns:
   * lpfc_do_offline() return code if not zero
   * -EIO reset not configured or error posting the event
   * zero for success
   **/
  int
  lpfc_selective_reset(struct lpfc_hba *phba)
  {
  	struct completion online_compl;
  	int status = 0;
  	int rc;
  
  	if (!phba->cfg_enable_hba_reset)
  		return -EIO;
  
  	status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
  
  	if (status != 0)
  		return status;
  
  	init_completion(&online_compl);
  	rc = lpfc_workq_post_event(phba, &status, &online_compl,
  			      LPFC_EVT_ONLINE);
  	if (rc == 0)
  		return -ENOMEM;
  
  	wait_for_completion(&online_compl);
  
  	if (status != 0)
  		return -EIO;
  
  	return 0;
  }
  
  /**
   * lpfc_issue_reset - Selectively resets an adapter
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: containing the string "selective".
   * @count: unused variable.
   *
   * Description:
   * If the buf contains the string "selective" then lpfc_selective_reset()
   * is called to perform the reset.
   *
   * Notes:
   * Assumes any error from lpfc_selective_reset() will be negative.
   * If lpfc_selective_reset() returns zero then the length of the buffer
   * is returned which indicates success
   *
   * Returns:
   * -EINVAL if the buffer does not contain the string "selective"
   * length of buf if lpfc-selective_reset() if the call succeeds
   * return value of lpfc_selective_reset() if the call fails
  **/
  static ssize_t
  lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
  		 const char *buf, size_t count)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	int status = -EINVAL;
  
  	if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
  		status = phba->lpfc_selective_reset(phba);
  
  	if (status == 0)
  		return strlen(buf);
  	else
  		return status;
  }
  
  /**
   * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness
   * @phba: lpfc_hba pointer.
   *
   * Description:
   * SLI4 interface type-2 device to wait on the sliport status register for
   * the readyness after performing a firmware reset.
   *
   * Returns:
   * zero for success
   **/
  static int
  lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
  {
  	struct lpfc_register portstat_reg;
  	int i;
  
  	lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
  		   &portstat_reg.word0);
  
  	/* wait for the SLI port firmware ready after firmware reset */
  	for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) {
  		msleep(10);
  		lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
  			   &portstat_reg.word0);
  		if (!bf_get(lpfc_sliport_status_err, &portstat_reg))
  			continue;
  		if (!bf_get(lpfc_sliport_status_rn, &portstat_reg))
  			continue;
  		if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg))
  			continue;
  		break;
  	}
  
  	if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT)
  		return 0;
  	else
  		return -EIO;
  }
  
  /**
   * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc
   * @phba: lpfc_hba pointer.
   *
   * Description:
   * Request SLI4 interface type-2 device to perform a physical register set
   * access.
   *
   * Returns:
   * zero for success
   **/
  static ssize_t
  lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
  {
  	struct completion online_compl;
  	uint32_t reg_val;
  	int status = 0;
  	int rc;
  
  	if (!phba->cfg_enable_hba_reset)
  		return -EIO;
  
  	if ((phba->sli_rev < LPFC_SLI_REV4) ||
  	    (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
  	     LPFC_SLI_INTF_IF_TYPE_2))
  		return -EPERM;
  
  	status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
  
  	if (status != 0)
  		return status;
  
  	/* wait for the device to be quiesced before firmware reset */
  	msleep(100);
  
  	reg_val = readl(phba->sli4_hba.conf_regs_memmap_p +
  			LPFC_CTL_PDEV_CTL_OFFSET);
  
  	if (opcode == LPFC_FW_DUMP)
  		reg_val |= LPFC_FW_DUMP_REQUEST;
  	else if (opcode == LPFC_FW_RESET)
  		reg_val |= LPFC_CTL_PDEV_CTL_FRST;
  	else if (opcode == LPFC_DV_RESET)
  		reg_val |= LPFC_CTL_PDEV_CTL_DRST;
  
  	writel(reg_val, phba->sli4_hba.conf_regs_memmap_p +
  	       LPFC_CTL_PDEV_CTL_OFFSET);
  	/* flush */
  	readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
  
  	/* delay driver action following IF_TYPE_2 reset */
  	rc = lpfc_sli4_pdev_status_reg_wait(phba);
  
  	if (rc)
  		return -EIO;
  
  	init_completion(&online_compl);
  	rc = lpfc_workq_post_event(phba, &status, &online_compl,
  				   LPFC_EVT_ONLINE);
  	if (rc == 0)
  		return -ENOMEM;
  
  	wait_for_completion(&online_compl);
  
  	if (status != 0)
  		return -EIO;
  
  	return 0;
  }
  
  /**
   * lpfc_nport_evt_cnt_show - Return the number of nport events
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the ascii number of nport events.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
  			char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
  }
  
  /**
   * lpfc_board_mode_show - Return the state of the board
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the state of the adapter.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
  		     char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	char  * state;
  
  	if (phba->link_state == LPFC_HBA_ERROR)
  		state = "error";
  	else if (phba->link_state == LPFC_WARM_START)
  		state = "warm start";
  	else if (phba->link_state == LPFC_INIT_START)
  		state = "offline";
  	else
  		state = "online";
  
  	return snprintf(buf, PAGE_SIZE, "%s\n", state);
  }
  
  /**
   * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: containing one of the strings "online", "offline", "warm" or "error".
   * @count: unused variable.
   *
   * Returns:
   * -EACCES if enable hba reset not enabled
   * -EINVAL if the buffer does not contain a valid string (see above)
   * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
   * buf length greater than zero indicates success
   **/
  static ssize_t
  lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
  		      const char *buf, size_t count)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	struct completion online_compl;
  	int status=0;
  	int rc;
  
  	if (!phba->cfg_enable_hba_reset)
  		return -EACCES;
  
  	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  		"3050 lpfc_board_mode set to %s\n", buf);
  
  	init_completion(&online_compl);
  
  	if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
  		rc = lpfc_workq_post_event(phba, &status, &online_compl,
  				      LPFC_EVT_ONLINE);
  		if (rc == 0)
  			return -ENOMEM;
  		wait_for_completion(&online_compl);
  	} else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
  		status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
  	else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
  		if (phba->sli_rev == LPFC_SLI_REV4)
  			return -EINVAL;
  		else
  			status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
  	else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
  		if (phba->sli_rev == LPFC_SLI_REV4)
  			return -EINVAL;
  		else
  			status = lpfc_do_offline(phba, LPFC_EVT_KILL);
  	else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
  		status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP);
  	else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0)
  		status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET);
  	else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
  		status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
  	else
  		return -EINVAL;
  
  	if (!status)
  		return strlen(buf);
  	else
  		return -EIO;
  }
  
  /**
   * lpfc_get_hba_info - Return various bits of informaton about the adapter
   * @phba: pointer to the adapter structure.
   * @mxri: max xri count.
   * @axri: available xri count.
   * @mrpi: max rpi count.
   * @arpi: available rpi count.
   * @mvpi: max vpi count.
   * @avpi: available vpi count.
   *
   * Description:
   * If an integer pointer for an count is not null then the value for the
   * count is returned.
   *
   * Returns:
   * zero on error
   * one for success
   **/
  static int
  lpfc_get_hba_info(struct lpfc_hba *phba,
  		  uint32_t *mxri, uint32_t *axri,
  		  uint32_t *mrpi, uint32_t *arpi,
  		  uint32_t *mvpi, uint32_t *avpi)
  {
  	struct lpfc_mbx_read_config *rd_config;
  	LPFC_MBOXQ_t *pmboxq;
  	MAILBOX_t *pmb;
  	int rc = 0;
  	uint32_t max_vpi;
  
  	/*
  	 * prevent udev from issuing mailbox commands until the port is
  	 * configured.
  	 */
  	if (phba->link_state < LPFC_LINK_DOWN ||
  	    !phba->mbox_mem_pool ||
  	    (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
  		return 0;
  
  	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
  		return 0;
  
  	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmboxq)
  		return 0;
  	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
  
  	pmb = &pmboxq->u.mb;
  	pmb->mbxCommand = MBX_READ_CONFIG;
  	pmb->mbxOwner = OWN_HOST;
  	pmboxq->context1 = NULL;
  
  	if (phba->pport->fc_flag & FC_OFFLINE_MODE)
  		rc = MBX_NOT_FINISHED;
  	else
  		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
  
  	if (rc != MBX_SUCCESS) {
  		if (rc != MBX_TIMEOUT)
  			mempool_free(pmboxq, phba->mbox_mem_pool);
  		return 0;
  	}
  
  	if (phba->sli_rev == LPFC_SLI_REV4) {
  		rd_config = &pmboxq->u.mqe.un.rd_config;
  		if (mrpi)
  			*mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
  		if (arpi)
  			*arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) -
  					phba->sli4_hba.max_cfg_param.rpi_used;
  		if (mxri)
  			*mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
  		if (axri)
  			*axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) -
  					phba->sli4_hba.max_cfg_param.xri_used;
  
  		/* Account for differences with SLI-3.  Get vpi count from
  		 * mailbox data and subtract one for max vpi value.
  		 */
  		max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ?
  			(bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0;
  
  		if (mvpi)
  			*mvpi = max_vpi;
  		if (avpi)
  			*avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used;
  	} else {
  		if (mrpi)
  			*mrpi = pmb->un.varRdConfig.max_rpi;
  		if (arpi)
  			*arpi = pmb->un.varRdConfig.avail_rpi;
  		if (mxri)
  			*mxri = pmb->un.varRdConfig.max_xri;
  		if (axri)
  			*axri = pmb->un.varRdConfig.avail_xri;
  		if (mvpi)
  			*mvpi = pmb->un.varRdConfig.max_vpi;
  		if (avpi)
  			*avpi = pmb->un.varRdConfig.avail_vpi;
  	}
  
  	mempool_free(pmboxq, phba->mbox_mem_pool);
  	return 1;
  }
  
  /**
   * lpfc_max_rpi_show - Return maximum rpi
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the maximum rpi count in decimal or "Unknown".
   *
   * Description:
   * Calls lpfc_get_hba_info() asking for just the mrpi count.
   * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
   * to "Unknown" and the buffer length is returned, therefore the caller
   * must check for "Unknown" in the buffer to detect a failure.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
  		  char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	uint32_t cnt;
  
  	if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL))
  		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
  	return snprintf(buf, PAGE_SIZE, "Unknown\n");
  }
  
  /**
   * lpfc_used_rpi_show - Return maximum rpi minus available rpi
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: containing the used rpi count in decimal or "Unknown".
   *
   * Description:
   * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
   * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
   * to "Unknown" and the buffer length is returned, therefore the caller
   * must check for "Unknown" in the buffer to detect a failure.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
  		   char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	uint32_t cnt, acnt;
  
  	if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL))
  		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
  	return snprintf(buf, PAGE_SIZE, "Unknown\n");
  }
  
  /**
   * lpfc_max_xri_show - Return maximum xri
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the maximum xri count in decimal or "Unknown".
   *
   * Description:
   * Calls lpfc_get_hba_info() asking for just the mrpi count.
   * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
   * to "Unknown" and the buffer length is returned, therefore the caller
   * must check for "Unknown" in the buffer to detect a failure.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
  		  char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	uint32_t cnt;
  
  	if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL))
  		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
  	return snprintf(buf, PAGE_SIZE, "Unknown\n");
  }
  
  /**
   * lpfc_used_xri_show - Return maximum xpi minus the available xpi
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the used xri count in decimal or "Unknown".
   *
   * Description:
   * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
   * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
   * to "Unknown" and the buffer length is returned, therefore the caller
   * must check for "Unknown" in the buffer to detect a failure.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
  		   char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	uint32_t cnt, acnt;
  
  	if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL))
  		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
  	return snprintf(buf, PAGE_SIZE, "Unknown\n");
  }
  
  /**
   * lpfc_max_vpi_show - Return maximum vpi
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the maximum vpi count in decimal or "Unknown".
   *
   * Description:
   * Calls lpfc_get_hba_info() asking for just the mvpi count.
   * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
   * to "Unknown" and the buffer length is returned, therefore the caller
   * must check for "Unknown" in the buffer to detect a failure.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
  		  char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	uint32_t cnt;
  
  	if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL))
  		return snprintf(buf, PAGE_SIZE, "%d\n", cnt);
  	return snprintf(buf, PAGE_SIZE, "Unknown\n");
  }
  
  /**
   * lpfc_used_vpi_show - Return maximum vpi minus the available vpi
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the used vpi count in decimal or "Unknown".
   *
   * Description:
   * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
   * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
   * to "Unknown" and the buffer length is returned, therefore the caller
   * must check for "Unknown" in the buffer to detect a failure.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
  		   char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	uint32_t cnt, acnt;
  
  	if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt))
  		return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt));
  	return snprintf(buf, PAGE_SIZE, "Unknown\n");
  }
  
  /**
   * lpfc_npiv_info_show - Return text about NPIV support for the adapter
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: text that must be interpreted to determine if npiv is supported.
   *
   * Description:
   * Buffer will contain text indicating npiv is not suppoerted on the port,
   * the port is an NPIV physical port, or it is an npiv virtual port with
   * the id of the vport.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
  		    char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	if (!(phba->max_vpi))
  		return snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n");
  	if (vport->port_type == LPFC_PHYSICAL_PORT)
  		return snprintf(buf, PAGE_SIZE, "NPIV Physical\n");
  	return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
  }
  
  /**
   * lpfc_poll_show - Return text about poll support for the adapter
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the cfg_poll in hex.
   *
   * Notes:
   * cfg_poll should be a lpfc_polling_flags type.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_poll_show(struct device *dev, struct device_attribute *attr,
  	       char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
  }
  
  /**
   * lpfc_poll_store - Set the value of cfg_poll for the adapter
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: one or more lpfc_polling_flags values.
   * @count: not used.
   *
   * Notes:
   * buf contents converted to integer and checked for a valid value.
   *
   * Returns:
   * -EINVAL if the buffer connot be converted or is out of range
   * length of the buf on success
   **/
  static ssize_t
  lpfc_poll_store(struct device *dev, struct device_attribute *attr,
  		const char *buf, size_t count)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	uint32_t creg_val;
  	uint32_t old_val;
  	int val=0;
  
  	if (!isdigit(buf[0]))
  		return -EINVAL;
  
  	if (sscanf(buf, "%i", &val) != 1)
  		return -EINVAL;
  
  	if ((val & 0x3) != val)
  		return -EINVAL;
  
  	if (phba->sli_rev == LPFC_SLI_REV4)
  		val = 0;
  
  	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  		"3051 lpfc_poll changed from %d to %d\n",
  		phba->cfg_poll, val);
  
  	spin_lock_irq(&phba->hbalock);
  
  	old_val = phba->cfg_poll;
  
  	if (val & ENABLE_FCP_RING_POLLING) {
  		if ((val & DISABLE_FCP_RING_INT) &&
  		    !(old_val & DISABLE_FCP_RING_INT)) {
  			if (lpfc_readl(phba->HCregaddr, &creg_val)) {
  				spin_unlock_irq(&phba->hbalock);
  				return -EINVAL;
  			}
  			creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
  			writel(creg_val, phba->HCregaddr);
  			readl(phba->HCregaddr); /* flush */
  
  			lpfc_poll_start_timer(phba);
  		}
  	} else if (val != 0x0) {
  		spin_unlock_irq(&phba->hbalock);
  		return -EINVAL;
  	}
  
  	if (!(val & DISABLE_FCP_RING_INT) &&
  	    (old_val & DISABLE_FCP_RING_INT))
  	{
  		spin_unlock_irq(&phba->hbalock);
  		del_timer(&phba->fcp_poll_timer);
  		spin_lock_irq(&phba->hbalock);
  		if (lpfc_readl(phba->HCregaddr, &creg_val)) {
  			spin_unlock_irq(&phba->hbalock);
  			return -EINVAL;
  		}
  		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
  		writel(creg_val, phba->HCregaddr);
  		readl(phba->HCregaddr); /* flush */
  	}
  
  	phba->cfg_poll = val;
  
  	spin_unlock_irq(&phba->hbalock);
  
  	return strlen(buf);
  }
  
  /**
   * lpfc_fips_level_show - Return the current FIPS level for the HBA
   * @dev: class unused variable.
   * @attr: device attribute, not used.
   * @buf: on return contains the module description text.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_fips_level_show(struct device *dev,  struct device_attribute *attr,
  		     char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level);
  }
  
  /**
   * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA
   * @dev: class unused variable.
   * @attr: device attribute, not used.
   * @buf: on return contains the module description text.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_fips_rev_show(struct device *dev,  struct device_attribute *attr,
  		   char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev);
  }
  
  /**
   * lpfc_dss_show - Return the current state of dss and the configured state
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the formatted text.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_dss_show(struct device *dev, struct device_attribute *attr,
  	      char *buf)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%s - %sOperational\n",
  			(phba->cfg_enable_dss) ? "Enabled" : "Disabled",
  			(phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ?
  				"" : "Not ");
  }
  
  /**
   * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the formatted support level.
   *
   * Description:
   * Returns the maximum number of virtual functions a physical function can
   * support, 0 will be returned if called on virtual function.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_sriov_hw_max_virtfn_show(struct device *dev,
  			      struct device_attribute *attr,
  			      char *buf)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba *phba = vport->phba;
  	uint16_t max_nr_virtfn;
  
  	max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba);
  	return snprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn);
  }
  
  /**
   * lpfc_param_show - Return a cfg attribute value in decimal
   *
   * Description:
   * Macro that given an attr e.g. hba_queue_depth expands
   * into a function with the name lpfc_hba_queue_depth_show.
   *
   * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the attribute value in decimal.
   *
   * Returns: size of formatted string.
   **/
  #define lpfc_param_show(attr)	\
  static ssize_t \
  lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
  		   char *buf) \
  { \
  	struct Scsi_Host  *shost = class_to_shost(dev);\
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
  	struct lpfc_hba   *phba = vport->phba;\
  	uint val = 0;\
  	val = phba->cfg_##attr;\
  	return snprintf(buf, PAGE_SIZE, "%d\n",\
  			phba->cfg_##attr);\
  }
  
  /**
   * lpfc_param_hex_show - Return a cfg attribute value in hex
   *
   * Description:
   * Macro that given an attr e.g. hba_queue_depth expands
   * into a function with the name lpfc_hba_queue_depth_show
   *
   * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the attribute value in hexadecimal.
   *
   * Returns: size of formatted string.
   **/
  #define lpfc_param_hex_show(attr)	\
  static ssize_t \
  lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
  		   char *buf) \
  { \
  	struct Scsi_Host  *shost = class_to_shost(dev);\
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
  	struct lpfc_hba   *phba = vport->phba;\
  	uint val = 0;\
  	val = phba->cfg_##attr;\
  	return snprintf(buf, PAGE_SIZE, "%#x\n",\
  			phba->cfg_##attr);\
  }
  
  /**
   * lpfc_param_init - Initializes a cfg attribute
   *
   * Description:
   * Macro that given an attr e.g. hba_queue_depth expands
   * into a function with the name lpfc_hba_queue_depth_init. The macro also
   * takes a default argument, a minimum and maximum argument.
   *
   * lpfc_##attr##_init: Initializes an attribute.
   * @phba: pointer the the adapter structure.
   * @val: integer attribute value.
   *
   * Validates the min and max values then sets the adapter config field
   * accordingly, or uses the default if out of range and prints an error message.
   *
   * Returns:
   * zero on success
   * -EINVAL if default used
   **/
  #define lpfc_param_init(attr, default, minval, maxval)	\
  static int \
  lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
  { \
  	if (val >= minval && val <= maxval) {\
  		phba->cfg_##attr = val;\
  		return 0;\
  	}\
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
  			"0449 lpfc_"#attr" attribute cannot be set to %d, "\
  			"allowed range is ["#minval", "#maxval"]\n", val); \
  	phba->cfg_##attr = default;\
  	return -EINVAL;\
  }
  
  /**
   * lpfc_param_set - Set a cfg attribute value
   *
   * Description:
   * Macro that given an attr e.g. hba_queue_depth expands
   * into a function with the name lpfc_hba_queue_depth_set
   *
   * lpfc_##attr##_set: Sets an attribute value.
   * @phba: pointer the the adapter structure.
   * @val: integer attribute value.
   *
   * Description:
   * Validates the min and max values then sets the
   * adapter config field if in the valid range. prints error message
   * and does not set the parameter if invalid.
   *
   * Returns:
   * zero on success
   * -EINVAL if val is invalid
   **/
  #define lpfc_param_set(attr, default, minval, maxval)	\
  static int \
  lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
  { \
  	if (val >= minval && val <= maxval) {\
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
  			"3052 lpfc_" #attr " changed from %d to %d\n", \
  			phba->cfg_##attr, val); \
  		phba->cfg_##attr = val;\
  		return 0;\
  	}\
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \
  			"0450 lpfc_"#attr" attribute cannot be set to %d, "\
  			"allowed range is ["#minval", "#maxval"]\n", val); \
  	return -EINVAL;\
  }
  
  /**
   * lpfc_param_store - Set a vport attribute value
   *
   * Description:
   * Macro that given an attr e.g. hba_queue_depth expands
   * into a function with the name lpfc_hba_queue_depth_store.
   *
   * lpfc_##attr##_store: Set an sttribute value.
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: contains the attribute value in ascii.
   * @count: not used.
   *
   * Description:
   * Convert the ascii text number to an integer, then
   * use the lpfc_##attr##_set function to set the value.
   *
   * Returns:
   * -EINVAL if val is invalid or lpfc_##attr##_set() fails
   * length of buffer upon success.
   **/
  #define lpfc_param_store(attr)	\
  static ssize_t \
  lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
  		    const char *buf, size_t count) \
  { \
  	struct Scsi_Host  *shost = class_to_shost(dev);\
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
  	struct lpfc_hba   *phba = vport->phba;\
  	uint val = 0;\
  	if (!isdigit(buf[0]))\
  		return -EINVAL;\
  	if (sscanf(buf, "%i", &val) != 1)\
  		return -EINVAL;\
  	if (lpfc_##attr##_set(phba, val) == 0) \
  		return strlen(buf);\
  	else \
  		return -EINVAL;\
  }
  
  /**
   * lpfc_vport_param_show - Return decimal formatted cfg attribute value
   *
   * Description:
   * Macro that given an attr e.g. hba_queue_depth expands
   * into a function with the name lpfc_hba_queue_depth_show
   *
   * lpfc_##attr##_show: prints the attribute value in decimal.
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the attribute value in decimal.
   *
   * Returns: length of formatted string.
   **/
  #define lpfc_vport_param_show(attr)	\
  static ssize_t \
  lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
  		   char *buf) \
  { \
  	struct Scsi_Host  *shost = class_to_shost(dev);\
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
  	uint val = 0;\
  	val = vport->cfg_##attr;\
  	return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
  }
  
  /**
   * lpfc_vport_param_hex_show - Return hex formatted attribute value
   *
   * Description:
   * Macro that given an attr e.g.
   * hba_queue_depth expands into a function with the name
   * lpfc_hba_queue_depth_show
   *
   * lpfc_##attr##_show: prints the attribute value in hexadecimal.
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the attribute value in hexadecimal.
   *
   * Returns: length of formatted string.
   **/
  #define lpfc_vport_param_hex_show(attr)	\
  static ssize_t \
  lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
  		   char *buf) \
  { \
  	struct Scsi_Host  *shost = class_to_shost(dev);\
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
  	uint val = 0;\
  	val = vport->cfg_##attr;\
  	return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
  }
  
  /**
   * lpfc_vport_param_init - Initialize a vport cfg attribute
   *
   * Description:
   * Macro that given an attr e.g. hba_queue_depth expands
   * into a function with the name lpfc_hba_queue_depth_init. The macro also
   * takes a default argument, a minimum and maximum argument.
   *
   * lpfc_##attr##_init: validates the min and max values then sets the
   * adapter config field accordingly, or uses the default if out of range
   * and prints an error message.
   * @phba: pointer the the adapter structure.
   * @val: integer attribute value.
   *
   * Returns:
   * zero on success
   * -EINVAL if default used
   **/
  #define lpfc_vport_param_init(attr, default, minval, maxval)	\
  static int \
  lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
  { \
  	if (val >= minval && val <= maxval) {\
  		vport->cfg_##attr = val;\
  		return 0;\
  	}\
  	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
  			 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
  			 "allowed range is ["#minval", "#maxval"]\n", val); \
  	vport->cfg_##attr = default;\
  	return -EINVAL;\
  }
  
  /**
   * lpfc_vport_param_set - Set a vport cfg attribute
   *
   * Description:
   * Macro that given an attr e.g. hba_queue_depth expands
   * into a function with the name lpfc_hba_queue_depth_set
   *
   * lpfc_##attr##_set: validates the min and max values then sets the
   * adapter config field if in the valid range. prints error message
   * and does not set the parameter if invalid.
   * @phba: pointer the the adapter structure.
   * @val:	integer attribute value.
   *
   * Returns:
   * zero on success
   * -EINVAL if val is invalid
   **/
  #define lpfc_vport_param_set(attr, default, minval, maxval)	\
  static int \
  lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
  { \
  	if (val >= minval && val <= maxval) {\
  		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
  			"3053 lpfc_" #attr " changed from %d to %d\n", \
  			vport->cfg_##attr, val); \
  		vport->cfg_##attr = val;\
  		return 0;\
  	}\
  	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
  			 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
  			 "allowed range is ["#minval", "#maxval"]\n", val); \
  	return -EINVAL;\
  }
  
  /**
   * lpfc_vport_param_store - Set a vport attribute
   *
   * Description:
   * Macro that given an attr e.g. hba_queue_depth
   * expands into a function with the name lpfc_hba_queue_depth_store
   *
   * lpfc_##attr##_store: convert the ascii text number to an integer, then
   * use the lpfc_##attr##_set function to set the value.
   * @cdev: class device that is converted into a Scsi_host.
   * @buf:	contains the attribute value in decimal.
   * @count: not used.
   *
   * Returns:
   * -EINVAL if val is invalid or lpfc_##attr##_set() fails
   * length of buffer upon success.
   **/
  #define lpfc_vport_param_store(attr)	\
  static ssize_t \
  lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
  		    const char *buf, size_t count) \
  { \
  	struct Scsi_Host  *shost = class_to_shost(dev);\
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
  	uint val = 0;\
  	if (!isdigit(buf[0]))\
  		return -EINVAL;\
  	if (sscanf(buf, "%i", &val) != 1)\
  		return -EINVAL;\
  	if (lpfc_##attr##_set(vport, val) == 0) \
  		return strlen(buf);\
  	else \
  		return -EINVAL;\
  }
  
  #define LPFC_ATTR(name, defval, minval, maxval, desc) \
  static uint lpfc_##name = defval;\
  module_param(lpfc_##name, uint, S_IRUGO);\
  MODULE_PARM_DESC(lpfc_##name, desc);\
  lpfc_param_init(name, defval, minval, maxval)
  
  #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
  static uint lpfc_##name = defval;\
  module_param(lpfc_##name, uint, S_IRUGO);\
  MODULE_PARM_DESC(lpfc_##name, desc);\
  lpfc_param_show(name)\
  lpfc_param_init(name, defval, minval, maxval)\
  static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
  
  #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
  static uint lpfc_##name = defval;\
  module_param(lpfc_##name, uint, S_IRUGO);\
  MODULE_PARM_DESC(lpfc_##name, desc);\
  lpfc_param_show(name)\
  lpfc_param_init(name, defval, minval, maxval)\
  lpfc_param_set(name, defval, minval, maxval)\
  lpfc_param_store(name)\
  static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
  		   lpfc_##name##_show, lpfc_##name##_store)
  
  #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \
  static uint lpfc_##name = defval;\
  module_param(lpfc_##name, uint, S_IRUGO);\
  MODULE_PARM_DESC(lpfc_##name, desc);\
  lpfc_param_hex_show(name)\
  lpfc_param_init(name, defval, minval, maxval)\
  static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
  
  #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
  static uint lpfc_##name = defval;\
  module_param(lpfc_##name, uint, S_IRUGO);\
  MODULE_PARM_DESC(lpfc_##name, desc);\
  lpfc_param_hex_show(name)\
  lpfc_param_init(name, defval, minval, maxval)\
  lpfc_param_set(name, defval, minval, maxval)\
  lpfc_param_store(name)\
  static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
  		   lpfc_##name##_show, lpfc_##name##_store)
  
  #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \
  static uint lpfc_##name = defval;\
  module_param(lpfc_##name, uint, S_IRUGO);\
  MODULE_PARM_DESC(lpfc_##name, desc);\
  lpfc_vport_param_init(name, defval, minval, maxval)
  
  #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
  static uint lpfc_##name = defval;\
  module_param(lpfc_##name, uint, S_IRUGO);\
  MODULE_PARM_DESC(lpfc_##name, desc);\
  lpfc_vport_param_show(name)\
  lpfc_vport_param_init(name, defval, minval, maxval)\
  static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
  
  #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
  static uint lpfc_##name = defval;\
  module_param(lpfc_##name, uint, S_IRUGO);\
  MODULE_PARM_DESC(lpfc_##name, desc);\
  lpfc_vport_param_show(name)\
  lpfc_vport_param_init(name, defval, minval, maxval)\
  lpfc_vport_param_set(name, defval, minval, maxval)\
  lpfc_vport_param_store(name)\
  static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
  		   lpfc_##name##_show, lpfc_##name##_store)
  
  #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \
  static uint lpfc_##name = defval;\
  module_param(lpfc_##name, uint, S_IRUGO);\
  MODULE_PARM_DESC(lpfc_##name, desc);\
  lpfc_vport_param_hex_show(name)\
  lpfc_vport_param_init(name, defval, minval, maxval)\
  static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
  
  #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
  static uint lpfc_##name = defval;\
  module_param(lpfc_##name, uint, S_IRUGO);\
  MODULE_PARM_DESC(lpfc_##name, desc);\
  lpfc_vport_param_hex_show(name)\
  lpfc_vport_param_init(name, defval, minval, maxval)\
  lpfc_vport_param_set(name, defval, minval, maxval)\
  lpfc_vport_param_store(name)\
  static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\
  		   lpfc_##name##_show, lpfc_##name##_store)
  
  static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL);
  static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL);
  static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL);
  static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL);
  static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL);
  static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL);
  static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL);
  static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL);
  static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL);
  static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL);
  static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL);
  static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL);
  static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
  		lpfc_link_state_store);
  static DEVICE_ATTR(option_rom_version, S_IRUGO,
  		   lpfc_option_rom_version_show, NULL);
  static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
  		   lpfc_num_discovered_ports_show, NULL);
  static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
  static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
  static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
  static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL);
  static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
  		   lpfc_board_mode_show, lpfc_board_mode_store);
  static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
  static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL);
  static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL);
  static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL);
  static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
  static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
  static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
  static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
  static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
  static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL);
  static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
  static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
  static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
  		   lpfc_sriov_hw_max_virtfn_show, NULL);
  
  static char *lpfc_soft_wwn_key = "C99G71SL8032A";
  
  /**
   * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: containing the string lpfc_soft_wwn_key.
   * @count: must be size of lpfc_soft_wwn_key.
   *
   * Returns:
   * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
   * length of buf indicates success
   **/
  static ssize_t
  lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
  			   const char *buf, size_t count)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	unsigned int cnt = count;
  
  	/*
  	 * We're doing a simple sanity check for soft_wwpn setting.
  	 * We require that the user write a specific key to enable
  	 * the soft_wwpn attribute to be settable. Once the attribute
  	 * is written, the enable key resets. If further updates are
  	 * desired, the key must be written again to re-enable the
  	 * attribute.
  	 *
  	 * The "key" is not secret - it is a hardcoded string shown
  	 * here. The intent is to protect against the random user or
  	 * application that is just writing attributes.
  	 */
  
  	/* count may include a LF at end of string */
  	if (buf[cnt-1] == '\n')
  		cnt--;
  
  	if ((cnt != strlen(lpfc_soft_wwn_key)) ||
  	    (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
  		return -EINVAL;
  
  	phba->soft_wwn_enable = 1;
  	return count;
  }
  static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
  		   lpfc_soft_wwn_enable_store);
  
  /**
   * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the wwpn in hexadecimal.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
  		    char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
  			(unsigned long long)phba->cfg_soft_wwpn);
  }
  
  /**
   * lpfc_soft_wwpn_store - Set the ww port name of the adapter
   * @dev class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: contains the wwpn in hexadecimal.
   * @count: number of wwpn bytes in buf
   *
   * Returns:
   * -EACCES hba reset not enabled, adapter over temp
   * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
   * -EIO error taking adapter offline or online
   * value of count on success
   **/
  static ssize_t
  lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
  		     const char *buf, size_t count)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	struct completion online_compl;
  	int stat1=0, stat2=0;
  	unsigned int i, j, cnt=count;
  	u8 wwpn[8];
  	int rc;
  
  	if (!phba->cfg_enable_hba_reset)
  		return -EACCES;
  	spin_lock_irq(&phba->hbalock);
  	if (phba->over_temp_state == HBA_OVER_TEMP) {
  		spin_unlock_irq(&phba->hbalock);
  		return -EACCES;
  	}
  	spin_unlock_irq(&phba->hbalock);
  	/* count may include a LF at end of string */
  	if (buf[cnt-1] == '\n')
  		cnt--;
  
  	if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
  	    ((cnt == 17) && (*buf++ != 'x')) ||
  	    ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
  		return -EINVAL;
  
  	phba->soft_wwn_enable = 0;
  
  	memset(wwpn, 0, sizeof(wwpn));
  
  	/* Validate and store the new name */
  	for (i=0, j=0; i < 16; i++) {
  		int value;
  
  		value = hex_to_bin(*buf++);
  		if (value >= 0)
  			j = (j << 4) | value;
  		else
  			return -EINVAL;
  		if (i % 2) {
  			wwpn[i/2] = j & 0xff;
  			j = 0;
  		}
  	}
  	phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
  	fc_host_port_name(shost) = phba->cfg_soft_wwpn;
  	if (phba->cfg_soft_wwnn)
  		fc_host_node_name(shost) = phba->cfg_soft_wwnn;
  
  	dev_printk(KERN_NOTICE, &phba->pcidev->dev,
  		   "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
  
  	stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
  	if (stat1)
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0463 lpfc_soft_wwpn attribute set failed to "
  				"reinit adapter - %d\n", stat1);
  	init_completion(&online_compl);
  	rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
  				   LPFC_EVT_ONLINE);
  	if (rc == 0)
  		return -ENOMEM;
  
  	wait_for_completion(&online_compl);
  	if (stat2)
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"0464 lpfc_soft_wwpn attribute set failed to "
  				"reinit adapter - %d\n", stat2);
  	return (stat1 || stat2) ? -EIO : count;
  }
  static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
  		   lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
  
  /**
   * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: on return contains the wwnn in hexadecimal.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
  		    char *buf)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  	return snprintf(buf, PAGE_SIZE, "0x%llx\n",
  			(unsigned long long)phba->cfg_soft_wwnn);
  }
  
  /**
   * lpfc_soft_wwnn_store - sets the ww node name of the adapter
   * @cdev: class device that is converted into a Scsi_host.
   * @buf: contains the ww node name in hexadecimal.
   * @count: number of wwnn bytes in buf.
   *
   * Returns:
   * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
   * value of count on success
   **/
  static ssize_t
  lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
  		     const char *buf, size_t count)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
  	unsigned int i, j, cnt=count;
  	u8 wwnn[8];
  
  	/* count may include a LF at end of string */
  	if (buf[cnt-1] == '\n')
  		cnt--;
  
  	if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
  	    ((cnt == 17) && (*buf++ != 'x')) ||
  	    ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
  		return -EINVAL;
  
  	/*
  	 * Allow wwnn to be set many times, as long as the enable is set.
  	 * However, once the wwpn is set, everything locks.
  	 */
  
  	memset(wwnn, 0, sizeof(wwnn));
  
  	/* Validate and store the new name */
  	for (i=0, j=0; i < 16; i++) {
  		int value;
  
  		value = hex_to_bin(*buf++);
  		if (value >= 0)
  			j = (j << 4) | value;
  		else
  			return -EINVAL;
  		if (i % 2) {
  			wwnn[i/2] = j & 0xff;
  			j = 0;
  		}
  	}
  	phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
  
  	dev_printk(KERN_NOTICE, &phba->pcidev->dev,
  		   "lpfc%d: soft_wwnn set. Value will take effect upon "
  		   "setting of the soft_wwpn\n", phba->brd_no);
  
  	return count;
  }
  static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
  		   lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
  
  static int lpfc_poll = 0;
  module_param(lpfc_poll, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
  		 " 0 - none,"
  		 " 1 - poll with interrupts enabled"
  		 " 3 - poll and disable FCP ring interrupts");
  
  static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
  		   lpfc_poll_show, lpfc_poll_store);
  
  int  lpfc_sli_mode = 0;
  module_param(lpfc_sli_mode, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
  		 " 0 - auto (SLI-3 if supported),"
  		 " 2 - select SLI-2 even on SLI-3 capable HBAs,"
  		 " 3 - select SLI-3");
  
  int lpfc_enable_npiv = 1;
  module_param(lpfc_enable_npiv, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality");
  lpfc_param_show(enable_npiv);
  lpfc_param_init(enable_npiv, 1, 0, 1);
  static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL);
  
  int lpfc_enable_rrq;
  module_param(lpfc_enable_rrq, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_enable_rrq, "Enable RRQ functionality");
  lpfc_param_show(enable_rrq);
  lpfc_param_init(enable_rrq, 0, 0, 1);
  static DEVICE_ATTR(lpfc_enable_rrq, S_IRUGO, lpfc_enable_rrq_show, NULL);
  
  /*
  # lpfc_suppress_link_up:  Bring link up at initialization
  #            0x0  = bring link up (issue MBX_INIT_LINK)
  #            0x1  = do NOT bring link up at initialization(MBX_INIT_LINK)
  #            0x2  = never bring up link
  # Default value is 0.
  */
  LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK,
  		LPFC_DELAY_INIT_LINK_INDEFINITELY,
  		"Suppress Link Up at initialization");
  /*
  # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS
  #       1 - (1024)
  #       2 - (2048)
  #       3 - (3072)
  #       4 - (4096)
  #       5 - (5120)
  */
  static ssize_t
  lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_hba   *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max);
  }
  
  static DEVICE_ATTR(iocb_hw, S_IRUGO,
  			 lpfc_iocb_hw_show, NULL);
  static ssize_t
  lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_hba   *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%d\n",
  		phba->sli.ring[LPFC_ELS_RING].txq_max);
  }
  
  static DEVICE_ATTR(txq_hw, S_IRUGO,
  			 lpfc_txq_hw_show, NULL);
  static ssize_t
  lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr,
   char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_hba   *phba = ((struct lpfc_vport *) shost->hostdata)->phba;
  
  	return snprintf(buf, PAGE_SIZE, "%d\n",
  		phba->sli.ring[LPFC_ELS_RING].txcmplq_max);
  }
  
  static DEVICE_ATTR(txcmplq_hw, S_IRUGO,
  			 lpfc_txcmplq_hw_show, NULL);
  
  int lpfc_iocb_cnt = 2;
  module_param(lpfc_iocb_cnt, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_iocb_cnt,
  	"Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs");
  lpfc_param_show(iocb_cnt);
  lpfc_param_init(iocb_cnt, 2, 1, 5);
  static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO,
  			 lpfc_iocb_cnt_show, NULL);
  
  /*
  # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
  # until the timer expires. Value range is [0,255]. Default value is 30.
  */
  static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
  static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
  module_param(lpfc_nodev_tmo, int, 0);
  MODULE_PARM_DESC(lpfc_nodev_tmo,
  		 "Seconds driver will hold I/O waiting "
  		 "for a device to come back");
  
  /**
   * lpfc_nodev_tmo_show - Return the hba dev loss timeout value
   * @dev: class converted to a Scsi_host structure.
   * @attr: device attribute, not used.
   * @buf: on return contains the dev loss timeout in decimal.
   *
   * Returns: size of formatted string.
   **/
  static ssize_t
  lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
  		    char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  
  	return snprintf(buf, PAGE_SIZE, "%d\n",	vport->cfg_devloss_tmo);
  }
  
  /**
   * lpfc_nodev_tmo_init - Set the hba nodev timeout value
   * @vport: lpfc vport structure pointer.
   * @val: contains the nodev timeout value.
   *
   * Description:
   * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
   * a kernel error message is printed and zero is returned.
   * Else if val is in range then nodev tmo and devloss tmo are set to val.
   * Otherwise nodev tmo is set to the default value.
   *
   * Returns:
   * zero if already set or if val is in range
   * -EINVAL val out of range
   **/
  static int
  lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
  {
  	if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) {
  		vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
  		if (val != LPFC_DEF_DEVLOSS_TMO)
  			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  					 "0407 Ignoring nodev_tmo module "
  					 "parameter because devloss_tmo is "
  					 "set.\n");
  		return 0;
  	}
  
  	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
  		vport->cfg_nodev_tmo = val;
  		vport->cfg_devloss_tmo = val;
  		return 0;
  	}
  	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  			 "0400 lpfc_nodev_tmo attribute cannot be set to"
  			 " %d, allowed range is [%d, %d]\n",
  			 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
  	vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
  	return -EINVAL;
  }
  
  /**
   * lpfc_update_rport_devloss_tmo - Update dev loss tmo value
   * @vport: lpfc vport structure pointer.
   *
   * Description:
   * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
   **/
  static void
  lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
  {
  	struct Scsi_Host  *shost;
  	struct lpfc_nodelist  *ndlp;
  
  	shost = lpfc_shost_from_vport(vport);
  	spin_lock_irq(shost->host_lock);
  	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp)
  		if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport)
  			ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
  	spin_unlock_irq(shost->host_lock);
  }
  
  /**
   * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values
   * @vport: lpfc vport structure pointer.
   * @val: contains the tmo value.
   *
   * Description:
   * If the devloss tmo is already set or the vport dev loss tmo has changed
   * then a kernel error message is printed and zero is returned.
   * Else if val is in range then nodev tmo and devloss tmo are set to val.
   * Otherwise nodev tmo is set to the default value.
   *
   * Returns:
   * zero if already set or if val is in range
   * -EINVAL val out of range
   **/
  static int
  lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
  {
  	if (vport->dev_loss_tmo_changed ||
  	    (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
  		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  				 "0401 Ignoring change to nodev_tmo "
  				 "because devloss_tmo is set.\n");
  		return 0;
  	}
  	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
  		vport->cfg_nodev_tmo = val;
  		vport->cfg_devloss_tmo = val;
  		/*
  		 * For compat: set the fc_host dev loss so new rports
  		 * will get the value.
  		 */
  		fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
  		lpfc_update_rport_devloss_tmo(vport);
  		return 0;
  	}
  	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  			 "0403 lpfc_nodev_tmo attribute cannot be set to"
  			 "%d, allowed range is [%d, %d]\n",
  			 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
  	return -EINVAL;
  }
  
  lpfc_vport_param_store(nodev_tmo)
  
  static DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
  		   lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
  
  /*
  # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
  # disappear until the timer expires. Value range is [0,255]. Default
  # value is 30.
  */
  module_param(lpfc_devloss_tmo, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_devloss_tmo,
  		 "Seconds driver will hold I/O waiting "
  		 "for a device to come back");
  lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
  		      LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
  lpfc_vport_param_show(devloss_tmo)
  
  /**
   * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit
   * @vport: lpfc vport structure pointer.
   * @val: contains the tmo value.
   *
   * Description:
   * If val is in a valid range then set the vport nodev tmo,
   * devloss tmo, also set the vport dev loss tmo changed flag.
   * Else a kernel error message is printed.
   *
   * Returns:
   * zero if val is in range
   * -EINVAL val out of range
   **/
  static int
  lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
  {
  	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
  		vport->cfg_nodev_tmo = val;
  		vport->cfg_devloss_tmo = val;
  		vport->dev_loss_tmo_changed = 1;
  		fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val;
  		lpfc_update_rport_devloss_tmo(vport);
  		return 0;
  	}
  
  	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  			 "0404 lpfc_devloss_tmo attribute cannot be set to"
  			 " %d, allowed range is [%d, %d]\n",
  			 val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
  	return -EINVAL;
  }
  
  lpfc_vport_param_store(devloss_tmo)
  static DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
  		   lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
  
  /*
  # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
  # deluged with LOTS of information.
  # You can set a bit mask to record specific types of verbose messages:
  # See lpfc_logmsh.h for definitions.
  */
  LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff,
  		       "Verbose logging bit-mask");
  
  /*
  # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters
  # objects that have been registered with the nameserver after login.
  */
  LPFC_VPORT_ATTR_R(enable_da_id, 0, 0, 1,
  		  "Deregister nameserver objects before LOGO");
  
  /*
  # lun_queue_depth:  This parameter is used to limit the number of outstanding
  # commands per FCP LUN. Value range is [1,128]. Default value is 30.
  */
  LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128,
  		  "Max number of FCP commands we can queue to a specific LUN");
  
  /*
  # tgt_queue_depth:  This parameter is used to limit the number of outstanding
  # commands per target port. Value range is [10,65535]. Default value is 65535.
  */
  LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535,
  	"Max number of FCP commands we can queue to a specific target port");
  
  /*
  # hba_queue_depth:  This parameter is used to limit the number of outstanding
  # commands per lpfc HBA. Value range is [32,8192]. If this parameter
  # value is greater than the maximum number of exchanges supported by the HBA,
  # then maximum number of exchanges supported by the HBA is used to determine
  # the hba_queue_depth.
  */
  LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
  	    "Max number of FCP commands we can queue to a lpfc HBA");
  
  /*
  # peer_port_login:  This parameter allows/prevents logins
  # between peer ports hosted on the same physical port.
  # When this parameter is set 0 peer ports of same physical port
  # are not allowed to login to each other.
  # When this parameter is set 1 peer ports of same physical port
  # are allowed to login to each other.
  # Default value of this parameter is 0.
  */
  LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1,
  		  "Allow peer ports on the same physical port to login to each "
  		  "other.");
  
  /*
  # restrict_login:  This parameter allows/prevents logins
  # between Virtual Ports and remote initiators.
  # When this parameter is not set (0) Virtual Ports will accept PLOGIs from
  # other initiators and will attempt to PLOGI all remote ports.
  # When this parameter is set (1) Virtual Ports will reject PLOGIs from
  # remote ports and will not attempt to PLOGI to other initiators.
  # This parameter does not restrict to the physical port.
  # This parameter does not restrict logins to Fabric resident remote ports.
  # Default value of this parameter is 1.
  */
  static int lpfc_restrict_login = 1;
  module_param(lpfc_restrict_login, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_restrict_login,
  		 "Restrict virtual ports login to remote initiators.");
  lpfc_vport_param_show(restrict_login);
  
  /**
   * lpfc_restrict_login_init - Set the vport restrict login flag
   * @vport: lpfc vport structure pointer.
   * @val: contains the restrict login value.
   *
   * Description:
   * If val is not in a valid range then log a kernel error message and set
   * the vport restrict login to one.
   * If the port type is physical clear the restrict login flag and return.
   * Else set the restrict login flag to val.
   *
   * Returns:
   * zero if val is in range
   * -EINVAL val out of range
   **/
  static int
  lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
  {
  	if (val < 0 || val > 1) {
  		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  				 "0422 lpfc_restrict_login attribute cannot "
  				 "be set to %d, allowed range is [0, 1]\n",
  				 val);
  		vport->cfg_restrict_login = 1;
  		return -EINVAL;
  	}
  	if (vport->port_type == LPFC_PHYSICAL_PORT) {
  		vport->cfg_restrict_login = 0;
  		return 0;
  	}
  	vport->cfg_restrict_login = val;
  	return 0;
  }
  
  /**
   * lpfc_restrict_login_set - Set the vport restrict login flag
   * @vport: lpfc vport structure pointer.
   * @val: contains the restrict login value.
   *
   * Description:
   * If val is not in a valid range then log a kernel error message and set
   * the vport restrict login to one.
   * If the port type is physical and the val is not zero log a kernel
   * error message, clear the restrict login flag and return zero.
   * Else set the restrict login flag to val.
   *
   * Returns:
   * zero if val is in range
   * -EINVAL val out of range
   **/
  static int
  lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
  {
  	if (val < 0 || val > 1) {
  		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  				 "0425 lpfc_restrict_login attribute cannot "
  				 "be set to %d, allowed range is [0, 1]\n",
  				 val);
  		vport->cfg_restrict_login = 1;
  		return -EINVAL;
  	}
  	if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) {
  		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  				 "0468 lpfc_restrict_login must be 0 for "
  				 "Physical ports.\n");
  		vport->cfg_restrict_login = 0;
  		return 0;
  	}
  	vport->cfg_restrict_login = val;
  	return 0;
  }
  lpfc_vport_param_store(restrict_login);
  static DEVICE_ATTR(lpfc_restrict_login, S_IRUGO | S_IWUSR,
  		   lpfc_restrict_login_show, lpfc_restrict_login_store);
  
  /*
  # Some disk devices have a "select ID" or "select Target" capability.
  # From a protocol standpoint "select ID" usually means select the
  # Fibre channel "ALPA".  In the FC-AL Profile there is an "informative
  # annex" which contains a table that maps a "select ID" (a number
  # between 0 and 7F) to an ALPA.  By default, for compatibility with
  # older drivers, the lpfc driver scans this table from low ALPA to high
  # ALPA.
  #
  # Turning on the scan-down variable (on  = 1, off = 0) will
  # cause the lpfc driver to use an inverted table, effectively
  # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1.
  #
  # (Note: This "select ID" functionality is a LOOP ONLY characteristic
  # and will not work across a fabric. Also this parameter will take
  # effect only in the case when ALPA map is not available.)
  */
  LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
  		  "Start scanning for devices from highest ALPA to lowest");
  
  /*
  # lpfc_topology:  link topology for init link
  #            0x0  = attempt loop mode then point-to-point
  #            0x01 = internal loopback mode
  #            0x02 = attempt point-to-point mode only
  #            0x04 = attempt loop mode only
  #            0x06 = attempt point-to-point mode then loop
  # Set point-to-point mode if you want to run as an N_Port.
  # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
  # Default value is 0.
  */
  
  /**
   * lpfc_topology_set - Set the adapters topology field
   * @phba: lpfc_hba pointer.
   * @val: topology value.
   *
   * Description:
   * If val is in a valid range then set the adapter's topology field and
   * issue a lip; if the lip fails reset the topology to the old value.
   *
   * If the value is not in range log a kernel error message and return an error.
   *
   * Returns:
   * zero if val is in range and lip okay
   * non-zero return value from lpfc_issue_lip()
   * -EINVAL val out of range
   **/
  static ssize_t
  lpfc_topology_store(struct device *dev, struct device_attribute *attr,
  			const char *buf, size_t count)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	int val = 0;
  	int nolip = 0;
  	const char *val_buf = buf;
  	int err;
  	uint32_t prev_val;
  
  	if (!strncmp(buf, "nolip ", strlen("nolip "))) {
  		nolip = 1;
  		val_buf = &buf[strlen("nolip ")];
  	}
  
  	if (!isdigit(val_buf[0]))
  		return -EINVAL;
  	if (sscanf(val_buf, "%i", &val) != 1)
  		return -EINVAL;
  
  	if (val >= 0 && val <= 6) {
  		prev_val = phba->cfg_topology;
  		phba->cfg_topology = val;
  		if (nolip)
  			return strlen(buf);
  
  		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  			"3054 lpfc_topology changed from %d to %d\n",
  			prev_val, val);
  		err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
  		if (err) {
  			phba->cfg_topology = prev_val;
  			return -EINVAL;
  		} else
  			return strlen(buf);
  	}
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  		"%d:0467 lpfc_topology attribute cannot be set to %d, "
  		"allowed range is [0, 6]\n",
  		phba->brd_no, val);
  	return -EINVAL;
  }
  static int lpfc_topology = 0;
  module_param(lpfc_topology, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology");
  lpfc_param_show(topology)
  lpfc_param_init(topology, 0, 0, 6)
  static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
  		lpfc_topology_show, lpfc_topology_store);
  
  /**
   * lpfc_static_vport_show: Read callback function for
   *   lpfc_static_vport sysfs file.
   * @dev: Pointer to class device object.
   * @attr: device attribute structure.
   * @buf: Data buffer.
   *
   * This function is the read call back function for
   * lpfc_static_vport sysfs file. The lpfc_static_vport
   * sysfs file report the mageability of the vport.
   **/
  static ssize_t
  lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
  			 char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	if (vport->vport_flag & STATIC_VPORT)
  		sprintf(buf, "1\n");
  	else
  		sprintf(buf, "0\n");
  
  	return strlen(buf);
  }
  
  /*
   * Sysfs attribute to control the statistical data collection.
   */
  static DEVICE_ATTR(lpfc_static_vport, S_IRUGO,
  		   lpfc_static_vport_show, NULL);
  
  /**
   * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
   * @dev: Pointer to class device.
   * @buf: Data buffer.
   * @count: Size of the data buffer.
   *
   * This function get called when an user write to the lpfc_stat_data_ctrl
   * sysfs file. This function parse the command written to the sysfs file
   * and take appropriate action. These commands are used for controlling
   * driver statistical data collection.
   * Following are the command this function handles.
   *
   *    setbucket <bucket_type> <base> <step>
   *			       = Set the latency buckets.
   *    destroybucket            = destroy all the buckets.
   *    start                    = start data collection
   *    stop                     = stop data collection
   *    reset                    = reset the collected data
   **/
  static ssize_t
  lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
  			  const char *buf, size_t count)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  #define LPFC_MAX_DATA_CTRL_LEN 1024
  	static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
  	unsigned long i;
  	char *str_ptr, *token;
  	struct lpfc_vport **vports;
  	struct Scsi_Host *v_shost;
  	char *bucket_type_str, *base_str, *step_str;
  	unsigned long base, step, bucket_type;
  
  	if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
  		if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
  			return -EINVAL;
  
  		strcpy(bucket_data, buf);
  		str_ptr = &bucket_data[0];
  		/* Ignore this token - this is command token */
  		token = strsep(&str_ptr, "\t ");
  		if (!token)
  			return -EINVAL;
  
  		bucket_type_str = strsep(&str_ptr, "\t ");
  		if (!bucket_type_str)
  			return -EINVAL;
  
  		if (!strncmp(bucket_type_str, "linear", strlen("linear")))
  			bucket_type = LPFC_LINEAR_BUCKET;
  		else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
  			bucket_type = LPFC_POWER2_BUCKET;
  		else
  			return -EINVAL;
  
  		base_str = strsep(&str_ptr, "\t ");
  		if (!base_str)
  			return -EINVAL;
  		base = simple_strtoul(base_str, NULL, 0);
  
  		step_str = strsep(&str_ptr, "\t ");
  		if (!step_str)
  			return -EINVAL;
  		step = simple_strtoul(step_str, NULL, 0);
  		if (!step)
  			return -EINVAL;
  
  		/* Block the data collection for every vport */
  		vports = lpfc_create_vport_work_array(phba);
  		if (vports == NULL)
  			return -ENOMEM;
  
  		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
  			v_shost = lpfc_shost_from_vport(vports[i]);
  			spin_lock_irq(v_shost->host_lock);
  			/* Block and reset data collection */
  			vports[i]->stat_data_blocked = 1;
  			if (vports[i]->stat_data_enabled)
  				lpfc_vport_reset_stat_data(vports[i]);
  			spin_unlock_irq(v_shost->host_lock);
  		}
  
  		/* Set the bucket attributes */
  		phba->bucket_type = bucket_type;
  		phba->bucket_base = base;
  		phba->bucket_step = step;
  
  		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
  			v_shost = lpfc_shost_from_vport(vports[i]);
  
  			/* Unblock data collection */
  			spin_lock_irq(v_shost->host_lock);
  			vports[i]->stat_data_blocked = 0;
  			spin_unlock_irq(v_shost->host_lock);
  		}
  		lpfc_destroy_vport_work_array(phba, vports);
  		return strlen(buf);
  	}
  
  	if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
  		vports = lpfc_create_vport_work_array(phba);
  		if (vports == NULL)
  			return -ENOMEM;
  
  		for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
  			v_shost = lpfc_shost_from_vport(vports[i]);
  			spin_lock_irq(shost->host_lock);
  			vports[i]->stat_data_blocked = 1;
  			lpfc_free_bucket(vport);
  			vport->stat_data_enabled = 0;
  			vports[i]->stat_data_blocked = 0;
  			spin_unlock_irq(shost->host_lock);
  		}
  		lpfc_destroy_vport_work_array(phba, vports);
  		phba->bucket_type = LPFC_NO_BUCKET;
  		phba->bucket_base = 0;
  		phba->bucket_step = 0;
  		return strlen(buf);
  	}
  
  	if (!strncmp(buf, "start", strlen("start"))) {
  		/* If no buckets configured return error */
  		if (phba->bucket_type == LPFC_NO_BUCKET)
  			return -EINVAL;
  		spin_lock_irq(shost->host_lock);
  		if (vport->stat_data_enabled) {
  			spin_unlock_irq(shost->host_lock);
  			return strlen(buf);
  		}
  		lpfc_alloc_bucket(vport);
  		vport->stat_data_enabled = 1;
  		spin_unlock_irq(shost->host_lock);
  		return strlen(buf);
  	}
  
  	if (!strncmp(buf, "stop", strlen("stop"))) {
  		spin_lock_irq(shost->host_lock);
  		if (vport->stat_data_enabled == 0) {
  			spin_unlock_irq(shost->host_lock);
  			return strlen(buf);
  		}
  		lpfc_free_bucket(vport);
  		vport->stat_data_enabled = 0;
  		spin_unlock_irq(shost->host_lock);
  		return strlen(buf);
  	}
  
  	if (!strncmp(buf, "reset", strlen("reset"))) {
  		if ((phba->bucket_type == LPFC_NO_BUCKET)
  			|| !vport->stat_data_enabled)
  			return strlen(buf);
  		spin_lock_irq(shost->host_lock);
  		vport->stat_data_blocked = 1;
  		lpfc_vport_reset_stat_data(vport);
  		vport->stat_data_blocked = 0;
  		spin_unlock_irq(shost->host_lock);
  		return strlen(buf);
  	}
  	return -EINVAL;
  }
  
  /**
   * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
   * @dev: Pointer to class device object.
   * @buf: Data buffer.
   *
   * This function is the read call back function for
   * lpfc_stat_data_ctrl sysfs file. This function report the
   * current statistical data collection state.
   **/
  static ssize_t
  lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
  			 char *buf)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	int index = 0;
  	int i;
  	char *bucket_type;
  	unsigned long bucket_value;
  
  	switch (phba->bucket_type) {
  	case LPFC_LINEAR_BUCKET:
  		bucket_type = "linear";
  		break;
  	case LPFC_POWER2_BUCKET:
  		bucket_type = "power2";
  		break;
  	default:
  		bucket_type = "No Bucket";
  		break;
  	}
  
  	sprintf(&buf[index], "Statistical Data enabled :%d, "
  		"blocked :%d, Bucket type :%s, Bucket base :%d,"
  		" Bucket step :%d\nLatency Ranges :",
  		vport->stat_data_enabled, vport->stat_data_blocked,
  		bucket_type, phba->bucket_base, phba->bucket_step);
  	index = strlen(buf);
  	if (phba->bucket_type != LPFC_NO_BUCKET) {
  		for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
  			if (phba->bucket_type == LPFC_LINEAR_BUCKET)
  				bucket_value = phba->bucket_base +
  					phba->bucket_step * i;
  			else
  				bucket_value = phba->bucket_base +
  				(1 << i) * phba->bucket_step;
  
  			if (index + 10 > PAGE_SIZE)
  				break;
  			sprintf(&buf[index], "%08ld ", bucket_value);
  			index = strlen(buf);
  		}
  	}
  	sprintf(&buf[index], "\n");
  	return strlen(buf);
  }
  
  /*
   * Sysfs attribute to control the statistical data collection.
   */
  static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
  		   lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
  
  /*
   * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
   */
  
  /*
   * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
   * for each target.
   */
  #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
  #define MAX_STAT_DATA_SIZE_PER_TARGET \
  	STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
  
  /**
   * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
   * @filp: sysfs file
   * @kobj: Pointer to the kernel object
   * @bin_attr: Attribute object
   * @buff: Buffer pointer
   * @off: File offset
   * @count: Buffer size
   *
   * This function is the read call back function for lpfc_drvr_stat_data
   * sysfs file. This function export the statistical data to user
   * applications.
   **/
  static ssize_t
  sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
  		struct bin_attribute *bin_attr,
  		char *buf, loff_t off, size_t count)
  {
  	struct device *dev = container_of(kobj, struct device,
  		kobj);
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	int i = 0, index = 0;
  	unsigned long nport_index;
  	struct lpfc_nodelist *ndlp = NULL;
  	nport_index = (unsigned long)off /
  		MAX_STAT_DATA_SIZE_PER_TARGET;
  
  	if (!vport->stat_data_enabled || vport->stat_data_blocked
  		|| (phba->bucket_type == LPFC_NO_BUCKET))
  		return 0;
  
  	spin_lock_irq(shost->host_lock);
  	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
  		if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
  			continue;
  
  		if (nport_index > 0) {
  			nport_index--;
  			continue;
  		}
  
  		if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
  			> count)
  			break;
  
  		if (!ndlp->lat_data)
  			continue;
  
  		/* Print the WWN */
  		sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
  			ndlp->nlp_portname.u.wwn[0],
  			ndlp->nlp_portname.u.wwn[1],
  			ndlp->nlp_portname.u.wwn[2],
  			ndlp->nlp_portname.u.wwn[3],
  			ndlp->nlp_portname.u.wwn[4],
  			ndlp->nlp_portname.u.wwn[5],
  			ndlp->nlp_portname.u.wwn[6],
  			ndlp->nlp_portname.u.wwn[7]);
  
  		index = strlen(buf);
  
  		for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
  			sprintf(&buf[index], "%010u,",
  				ndlp->lat_data[i].cmd_count);
  			index = strlen(buf);
  		}
  		sprintf(&buf[index], "\n");
  		index = strlen(buf);
  	}
  	spin_unlock_irq(shost->host_lock);
  	return index;
  }
  
  static struct bin_attribute sysfs_drvr_stat_data_attr = {
  	.attr = {
  		.name = "lpfc_drvr_stat_data",
  		.mode = S_IRUSR,
  	},
  	.size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
  	.read = sysfs_drvr_stat_data_read,
  	.write = NULL,
  };
  
  /*
  # lpfc_link_speed: Link speed selection for initializing the Fibre Channel
  # connection.
  # Value range is [0,16]. Default value is 0.
  */
  /**
   * lpfc_link_speed_set - Set the adapters link speed
   * @phba: lpfc_hba pointer.
   * @val: link speed value.
   *
   * Description:
   * If val is in a valid range then set the adapter's link speed field and
   * issue a lip; if the lip fails reset the link speed to the old value.
   *
   * Notes:
   * If the value is not in range log a kernel error message and return an error.
   *
   * Returns:
   * zero if val is in range and lip okay.
   * non-zero return value from lpfc_issue_lip()
   * -EINVAL val out of range
   **/
  static ssize_t
  lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
  		const char *buf, size_t count)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	int val = LPFC_USER_LINK_SPEED_AUTO;
  	int nolip = 0;
  	const char *val_buf = buf;
  	int err;
  	uint32_t prev_val;
  
  	if (!strncmp(buf, "nolip ", strlen("nolip "))) {
  		nolip = 1;
  		val_buf = &buf[strlen("nolip ")];
  	}
  
  	if (!isdigit(val_buf[0]))
  		return -EINVAL;
  	if (sscanf(val_buf, "%i", &val) != 1)
  		return -EINVAL;
  
  	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
  		"3055 lpfc_link_speed changed from %d to %d %s\n",
  		phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)");
  
  	if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) ||
  	    ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) ||
  	    ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) ||
  	    ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) ||
  	    ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) ||
  	    ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb))) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"2879 lpfc_link_speed attribute cannot be set "
  				"to %d. Speed is not supported by this port.\n",
  				val);
  		return -EINVAL;
  	}
  	if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
  	    (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
  		prev_val = phba->cfg_link_speed;
  		phba->cfg_link_speed = val;
  		if (nolip)
  			return strlen(buf);
  
  		err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
  		if (err) {
  			phba->cfg_link_speed = prev_val;
  			return -EINVAL;
  		} else
  			return strlen(buf);
  	}
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  		"0469 lpfc_link_speed attribute cannot be set to %d, "
  		"allowed values are ["LPFC_LINK_SPEED_STRING"]\n", val);
  	return -EINVAL;
  }
  
  static int lpfc_link_speed = 0;
  module_param(lpfc_link_speed, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
  lpfc_param_show(link_speed)
  
  /**
   * lpfc_link_speed_init - Set the adapters link speed
   * @phba: lpfc_hba pointer.
   * @val: link speed value.
   *
   * Description:
   * If val is in a valid range then set the adapter's link speed field.
   *
   * Notes:
   * If the value is not in range log a kernel error message, clear the link
   * speed and return an error.
   *
   * Returns:
   * zero if val saved.
   * -EINVAL val out of range
   **/
  static int
  lpfc_link_speed_init(struct lpfc_hba *phba, int val)
  {
  	if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
  	    (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
  		phba->cfg_link_speed = val;
  		return 0;
  	}
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  			"0405 lpfc_link_speed attribute cannot "
  			"be set to %d, allowed values are "
  			"["LPFC_LINK_SPEED_STRING"]\n", val);
  	phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
  	return -EINVAL;
  }
  
  static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR,
  		   lpfc_link_speed_show, lpfc_link_speed_store);
  
  /*
  # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER)
  #       0  = aer disabled or not supported
  #       1  = aer supported and enabled (default)
  # Value range is [0,1]. Default value is 1.
  */
  
  /**
   * lpfc_aer_support_store - Set the adapter for aer support
   *
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: containing enable or disable aer flag.
   * @count: unused variable.
   *
   * Description:
   * If the val is 1 and currently the device's AER capability was not
   * enabled, invoke the kernel's enable AER helper routine, trying to
   * enable the device's AER capability. If the helper routine enabling
   * AER returns success, update the device's cfg_aer_support flag to
   * indicate AER is supported by the device; otherwise, if the device
   * AER capability is already enabled to support AER, then do nothing.
   *
   * If the val is 0 and currently the device's AER support was enabled,
   * invoke the kernel's disable AER helper routine. After that, update
   * the device's cfg_aer_support flag to indicate AER is not supported
   * by the device; otherwise, if the device AER capability is already
   * disabled from supporting AER, then do nothing.
   *
   * Returns:
   * length of the buf on success if val is in range the intended mode
   * is supported.
   * -EINVAL if val out of range or intended mode is not supported.
   **/
  static ssize_t
  lpfc_aer_support_store(struct device *dev, struct device_attribute *attr,
  		       const char *buf, size_t count)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
  	struct lpfc_hba *phba = vport->phba;
  	int val = 0, rc = -EINVAL;
  
  	if (!isdigit(buf[0]))
  		return -EINVAL;
  	if (sscanf(buf, "%i", &val) != 1)
  		return -EINVAL;
  
  	switch (val) {
  	case 0:
  		if (phba->hba_flag & HBA_AER_ENABLED) {
  			rc = pci_disable_pcie_error_reporting(phba->pcidev);
  			if (!rc) {
  				spin_lock_irq(&phba->hbalock);
  				phba->hba_flag &= ~HBA_AER_ENABLED;
  				spin_unlock_irq(&phba->hbalock);
  				phba->cfg_aer_support = 0;
  				rc = strlen(buf);
  			} else
  				rc = -EPERM;
  		} else {
  			phba->cfg_aer_support = 0;
  			rc = strlen(buf);
  		}
  		break;
  	case 1:
  		if (!(phba->hba_flag & HBA_AER_ENABLED)) {
  			rc = pci_enable_pcie_error_reporting(phba->pcidev);
  			if (!rc) {
  				spin_lock_irq(&phba->hbalock);
  				phba->hba_flag |= HBA_AER_ENABLED;
  				spin_unlock_irq(&phba->hbalock);
  				phba->cfg_aer_support = 1;
  				rc = strlen(buf);
  			} else
  				 rc = -EPERM;
  		} else {
  			phba->cfg_aer_support = 1;
  			rc = strlen(buf);
  		}
  		break;
  	default:
  		rc = -EINVAL;
  		break;
  	}
  	return rc;
  }
  
  static int lpfc_aer_support = 1;
  module_param(lpfc_aer_support, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support");
  lpfc_param_show(aer_support)
  
  /**
   * lpfc_aer_support_init - Set the initial adapters aer support flag
   * @phba: lpfc_hba pointer.
   * @val: enable aer or disable aer flag.
   *
   * Description:
   * If val is in a valid range [0,1], then set the adapter's initial
   * cfg_aer_support field. It will be up to the driver's probe_one
   * routine to determine whether the device's AER support can be set
   * or not.
   *
   * Notes:
   * If the value is not in range log a kernel error message, and
   * choose the default value of setting AER support and return.
   *
   * Returns:
   * zero if val saved.
   * -EINVAL val out of range
   **/
  static int
  lpfc_aer_support_init(struct lpfc_hba *phba, int val)
  {
  	if (val == 0 || val == 1) {
  		phba->cfg_aer_support = val;
  		return 0;
  	}
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  			"2712 lpfc_aer_support attribute value %d out "
  			"of range, allowed values are 0|1, setting it "
  			"to default value of 1\n", val);
  	/* By default, try to enable AER on a device */
  	phba->cfg_aer_support = 1;
  	return -EINVAL;
  }
  
  static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR,
  		   lpfc_aer_support_show, lpfc_aer_support_store);
  
  /**
   * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: containing flag 1 for aer cleanup state.
   * @count: unused variable.
   *
   * Description:
   * If the @buf contains 1 and the device currently has the AER support
   * enabled, then invokes the kernel AER helper routine
   * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable
   * error status register.
   *
   * Notes:
   *
   * Returns:
   * -EINVAL if the buf does not contain the 1 or the device is not currently
   * enabled with the AER support.
   **/
  static ssize_t
  lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr,
  		       const char *buf, size_t count)
  {
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	int val, rc = -1;
  
  	if (!isdigit(buf[0]))
  		return -EINVAL;
  	if (sscanf(buf, "%i", &val) != 1)
  		return -EINVAL;
  	if (val != 1)
  		return -EINVAL;
  
  	if (phba->hba_flag & HBA_AER_ENABLED)
  		rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev);
  
  	if (rc == 0)
  		return strlen(buf);
  	else
  		return -EPERM;
  }
  
  static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL,
  		   lpfc_aer_cleanup_state);
  
  /**
   * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions
   *
   * @dev: class device that is converted into a Scsi_host.
   * @attr: device attribute, not used.
   * @buf: containing the string the number of vfs to be enabled.
   * @count: unused variable.
   *
   * Description:
   * When this api is called either through user sysfs, the driver shall
   * try to enable or disable SR-IOV virtual functions according to the
   * following:
   *
   * If zero virtual function has been enabled to the physical function,
   * the driver shall invoke the pci enable virtual function api trying
   * to enable the virtual functions. If the nr_vfn provided is greater
   * than the maximum supported, the maximum virtual function number will
   * be used for invoking the api; otherwise, the nr_vfn provided shall
   * be used for invoking the api. If the api call returned success, the
   * actual number of virtual functions enabled will be set to the driver
   * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver
   * cfg_sriov_nr_virtfn remains zero.
   *
   * If none-zero virtual functions have already been enabled to the
   * physical function, as reflected by the driver's cfg_sriov_nr_virtfn,
   * -EINVAL will be returned and the driver does nothing;
   *
   * If the nr_vfn provided is zero and none-zero virtual functions have
   * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the
   * disabling virtual function api shall be invoded to disable all the
   * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to
   * zero. Otherwise, if zero virtual function has been enabled, do
   * nothing.
   *
   * Returns:
   * length of the buf on success if val is in range the intended mode
   * is supported.
   * -EINVAL if val out of range or intended mode is not supported.
   **/
  static ssize_t
  lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr,
  			 const char *buf, size_t count)
  {
  	struct Scsi_Host *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
  	struct lpfc_hba *phba = vport->phba;
  	struct pci_dev *pdev = phba->pcidev;
  	int val = 0, rc = -EINVAL;
  
  	/* Sanity check on user data */
  	if (!isdigit(buf[0]))
  		return -EINVAL;
  	if (sscanf(buf, "%i", &val) != 1)
  		return -EINVAL;
  	if (val < 0)
  		return -EINVAL;
  
  	/* Request disabling virtual functions */
  	if (val == 0) {
  		if (phba->cfg_sriov_nr_virtfn > 0) {
  			pci_disable_sriov(pdev);
  			phba->cfg_sriov_nr_virtfn = 0;
  		}
  		return strlen(buf);
  	}
  
  	/* Request enabling virtual functions */
  	if (phba->cfg_sriov_nr_virtfn > 0) {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"3018 There are %d virtual functions "
  				"enabled on physical function.\n",
  				phba->cfg_sriov_nr_virtfn);
  		return -EEXIST;
  	}
  
  	if (val <= LPFC_MAX_VFN_PER_PFN)
  		phba->cfg_sriov_nr_virtfn = val;
  	else {
  		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  				"3019 Enabling %d virtual functions is not "
  				"allowed.\n", val);
  		return -EINVAL;
  	}
  
  	rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn);
  	if (rc) {
  		phba->cfg_sriov_nr_virtfn = 0;
  		rc = -EPERM;
  	} else
  		rc = strlen(buf);
  
  	return rc;
  }
  
  static int lpfc_sriov_nr_virtfn = LPFC_DEF_VFN_PER_PFN;
  module_param(lpfc_sriov_nr_virtfn, int, S_IRUGO|S_IWUSR);
  MODULE_PARM_DESC(lpfc_sriov_nr_virtfn, "Enable PCIe device SR-IOV virtual fn");
  lpfc_param_show(sriov_nr_virtfn)
  
  /**
   * lpfc_sriov_nr_virtfn_init - Set the initial sr-iov virtual function enable
   * @phba: lpfc_hba pointer.
   * @val: link speed value.
   *
   * Description:
   * If val is in a valid range [0,255], then set the adapter's initial
   * cfg_sriov_nr_virtfn field. If it's greater than the maximum, the maximum
   * number shall be used instead. It will be up to the driver's probe_one
   * routine to determine whether the device's SR-IOV is supported or not.
   *
   * Returns:
   * zero if val saved.
   * -EINVAL val out of range
   **/
  static int
  lpfc_sriov_nr_virtfn_init(struct lpfc_hba *phba, int val)
  {
  	if (val >= 0 && val <= LPFC_MAX_VFN_PER_PFN) {
  		phba->cfg_sriov_nr_virtfn = val;
  		return 0;
  	}
  
  	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
  			"3017 Enabling %d virtual functions is not "
  			"allowed.\n", val);
  	return -EINVAL;
  }
  static DEVICE_ATTR(lpfc_sriov_nr_virtfn, S_IRUGO | S_IWUSR,
  		   lpfc_sriov_nr_virtfn_show, lpfc_sriov_nr_virtfn_store);
  
  /*
  # lpfc_fcp_class:  Determines FC class to use for the FCP protocol.
  # Value range is [2,3]. Default value is 3.
  */
  LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3,
  		  "Select Fibre Channel class of service for FCP sequences");
  
  /*
  # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range
  # is [0,1]. Default value is 0.
  */
  LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
  		   "Use ADISC on rediscovery to authenticate FCP devices");
  
  /*
  # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
  # depth. Default value is 0. When the value of this parameter is zero the
  # SCSI command completion time is not used for controlling I/O queue depth. When
  # the parameter is set to a non-zero value, the I/O queue depth is controlled
  # to limit the I/O completion time to the parameter value.
  # The value is set in milliseconds.
  */
  static int lpfc_max_scsicmpl_time;
  module_param(lpfc_max_scsicmpl_time, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
  	"Use command completion time to control queue depth");
  lpfc_vport_param_show(max_scsicmpl_time);
  lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
  static int
  lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
  {
  	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
  	struct lpfc_nodelist *ndlp, *next_ndlp;
  
  	if (val == vport->cfg_max_scsicmpl_time)
  		return 0;
  	if ((val < 0) || (val > 60000))
  		return -EINVAL;
  	vport->cfg_max_scsicmpl_time = val;
  
  	spin_lock_irq(shost->host_lock);
  	list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
  		if (!NLP_CHK_NODE_ACT(ndlp))
  			continue;
  		if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
  			continue;
  		ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
  	}
  	spin_unlock_irq(shost->host_lock);
  	return 0;
  }
  lpfc_vport_param_store(max_scsicmpl_time);
  static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
  		   lpfc_max_scsicmpl_time_show,
  		   lpfc_max_scsicmpl_time_store);
  
  /*
  # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
  # range is [0,1]. Default value is 0.
  */
  LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support");
  
  /*
  # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing
  # cr_delay (msec) or cr_count outstanding commands. cr_delay can take
  # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay
  # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
  # cr_delay is set to 0.
  */
  LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an "
  		"interrupt response is generated");
  
  LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an "
  		"interrupt response is generated");
  
  /*
  # lpfc_multi_ring_support:  Determines how many rings to spread available
  # cmd/rsp IOCB entries across.
  # Value range is [1,2]. Default value is 1.
  */
  LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary "
  		"SLI rings to spread IOCB entries across");
  
  /*
  # lpfc_multi_ring_rctl:  If lpfc_multi_ring_support is enabled, this
  # identifies what rctl value to configure the additional ring for.
  # Value range is [1,0xff]. Default value is 4 (Unsolicated Data).
  */
  LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1,
  	     255, "Identifies RCTL for additional ring configuration");
  
  /*
  # lpfc_multi_ring_type:  If lpfc_multi_ring_support is enabled, this
  # identifies what type value to configure the additional ring for.
  # Value range is [1,0xff]. Default value is 5 (LLC/SNAP).
  */
  LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1,
  	     255, "Identifies TYPE for additional ring configuration");
  
  /*
  # lpfc_fdmi_on: controls FDMI support.
  #       0 = no FDMI support
  #       1 = support FDMI without attribute of hostname
  #       2 = support FDMI with attribute of hostname
  # Value range [0,2]. Default value is 0.
  */
  LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "Enable FDMI support");
  
  /*
  # Specifies the maximum number of ELS cmds we can have outstanding (for
  # discovery). Value range is [1,64]. Default value = 32.
  */
  LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands "
  		 "during discovery");
  
  /*
  # lpfc_max_luns: maximum allowed LUN.
  # Value range is [0,65535]. Default value is 255.
  # NOTE: The SCSI layer might probe all allowed LUN on some old targets.
  */
  LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN");
  
  /*
  # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
  # Value range is [1,255], default value is 10.
  */
  LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
  	     "Milliseconds driver will wait between polling FCP ring");
  
  /*
  # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
  #		support this feature
  #       0  = MSI disabled
  #       1  = MSI enabled
  #       2  = MSI-X enabled (default)
  # Value range is [0,2]. Default value is 2.
  */
  LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
  	    "MSI-X (2), if possible");
  
  /*
  # lpfc_fcp_imax: Set the maximum number of fast-path FCP interrupts per second
  #
  # Value range is [636,651042]. Default value is 10000.
  */
  LPFC_ATTR_R(fcp_imax, LPFC_FP_DEF_IMAX, LPFC_MIM_IMAX, LPFC_DMULT_CONST,
  	    "Set the maximum number of fast-path FCP interrupts per second");
  
  /*
  # lpfc_fcp_wq_count: Set the number of fast-path FCP work queues
  #
  # Value range is [1,31]. Default value is 4.
  */
  LPFC_ATTR_R(fcp_wq_count, LPFC_FP_WQN_DEF, LPFC_FP_WQN_MIN, LPFC_FP_WQN_MAX,
  	    "Set the number of fast-path FCP work queues, if possible");
  
  /*
  # lpfc_fcp_eq_count: Set the number of fast-path FCP event queues
  #
  # Value range is [1,7]. Default value is 1.
  */
  LPFC_ATTR_R(fcp_eq_count, LPFC_FP_EQN_DEF, LPFC_FP_EQN_MIN, LPFC_FP_EQN_MAX,
  	    "Set the number of fast-path FCP event queues, if possible");
  
  /*
  # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware.
  #       0  = HBA resets disabled
  #       1  = HBA resets enabled (default)
  # Value range is [0,1]. Default value is 1.
  */
  LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
  
  /*
  # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer..
  #       0  = HBA Heartbeat disabled
  #       1  = HBA Heartbeat enabled (default)
  # Value range is [0,1]. Default value is 1.
  */
  LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
  
  /*
  # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
  #       0  = BlockGuard disabled (default)
  #       1  = BlockGuard enabled
  # Value range is [0,1]. Default value is 0.
  */
  LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support");
  
  /*
  # lpfc_prot_mask: i
  #	- Bit mask of host protection capabilities used to register with the
  #	  SCSI mid-layer
  # 	- Only meaningful if BG is turned on (lpfc_enable_bg=1).
  #	- Allows you to ultimately specify which profiles to use
  #	- Default will result in registering capabilities for all profiles.
  #
  */
  unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION |
  			      SHOST_DIX_TYPE0_PROTECTION |
  			      SHOST_DIX_TYPE1_PROTECTION;
  
  module_param(lpfc_prot_mask, uint, S_IRUGO);
  MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask");
  
  /*
  # lpfc_prot_guard: i
  #	- Bit mask of protection guard types to register with the SCSI mid-layer
  # 	- Guard types are currently either 1) IP checksum 2) T10-DIF CRC
  #	- Allows you to ultimately specify which profiles to use
  #	- Default will result in registering capabilities for all guard types
  #
  */
  unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP;
  module_param(lpfc_prot_guard, byte, S_IRUGO);
  MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type");
  
  /*
   * Delay initial NPort discovery when Clean Address bit is cleared in
   * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed.
   * This parameter can have value 0 or 1.
   * When this parameter is set to 0, no delay is added to the initial
   * discovery.
   * When this parameter is set to non-zero value, initial Nport discovery is
   * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC
   * accept and FCID/Fabric name/Fabric portname is changed.
   * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion
   * when Clean Address bit is cleared in FLOGI/FDISC
   * accept and FCID/Fabric name/Fabric portname is changed.
   * Default value is 0.
   */
  int lpfc_delay_discovery;
  module_param(lpfc_delay_discovery, int, S_IRUGO);
  MODULE_PARM_DESC(lpfc_delay_discovery,
  	"Delay NPort discovery when Clean Address bit is cleared. "
  	"Allowed values: 0,1.");
  
  /*
   * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count
   * This value can be set to values between 64 and 256. The default value is
   * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer
   * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE).
   */
  LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
  	    LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
  
  LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_PROT_SG_SEG_CNT,
  		LPFC_DEFAULT_PROT_SG_SEG_CNT, LPFC_MAX_PROT_SG_SEG_CNT,
  		"Max Protection Scatter Gather Segment Count");
  
  struct device_attribute *lpfc_hba_attrs[] = {
  	&dev_attr_bg_info,
  	&dev_attr_bg_guard_err,
  	&dev_attr_bg_apptag_err,
  	&dev_attr_bg_reftag_err,
  	&dev_attr_info,
  	&dev_attr_serialnum,
  	&dev_attr_modeldesc,
  	&dev_attr_modelname,
  	&dev_attr_programtype,
  	&dev_attr_portnum,
  	&dev_attr_fwrev,
  	&dev_attr_hdw,
  	&dev_attr_option_rom_version,
  	&dev_attr_link_state,
  	&dev_attr_num_discovered_ports,
  	&dev_attr_menlo_mgmt_mode,
  	&dev_attr_lpfc_drvr_version,
  	&dev_attr_lpfc_enable_fip,
  	&dev_attr_lpfc_temp_sensor,
  	&dev_attr_lpfc_log_verbose,
  	&dev_attr_lpfc_lun_queue_depth,
  	&dev_attr_lpfc_tgt_queue_depth,
  	&dev_attr_lpfc_hba_queue_depth,
  	&dev_attr_lpfc_peer_port_login,
  	&dev_attr_lpfc_nodev_tmo,
  	&dev_attr_lpfc_devloss_tmo,
  	&dev_attr_lpfc_fcp_class,
  	&dev_attr_lpfc_use_adisc,
  	&dev_attr_lpfc_ack0,
  	&dev_attr_lpfc_topology,
  	&dev_attr_lpfc_scan_down,
  	&dev_attr_lpfc_link_speed,
  	&dev_attr_lpfc_cr_delay,
  	&dev_attr_lpfc_cr_count,
  	&dev_attr_lpfc_multi_ring_support,
  	&dev_attr_lpfc_multi_ring_rctl,
  	&dev_attr_lpfc_multi_ring_type,
  	&dev_attr_lpfc_fdmi_on,
  	&dev_attr_lpfc_max_luns,
  	&dev_attr_lpfc_enable_npiv,
  	&dev_attr_lpfc_enable_rrq,
  	&dev_attr_nport_evt_cnt,
  	&dev_attr_board_mode,
  	&dev_attr_max_vpi,
  	&dev_attr_used_vpi,
  	&dev_attr_max_rpi,
  	&dev_attr_used_rpi,
  	&dev_attr_max_xri,
  	&dev_attr_used_xri,
  	&dev_attr_npiv_info,
  	&dev_attr_issue_reset,
  	&dev_attr_lpfc_poll,
  	&dev_attr_lpfc_poll_tmo,
  	&dev_attr_lpfc_use_msi,
  	&dev_attr_lpfc_fcp_imax,
  	&dev_attr_lpfc_fcp_wq_count,
  	&dev_attr_lpfc_fcp_eq_count,
  	&dev_attr_lpfc_enable_bg,
  	&dev_attr_lpfc_soft_wwnn,
  	&dev_attr_lpfc_soft_wwpn,
  	&dev_attr_lpfc_soft_wwn_enable,
  	&dev_attr_lpfc_enable_hba_reset,
  	&dev_attr_lpfc_enable_hba_heartbeat,
  	&dev_attr_lpfc_sg_seg_cnt,
  	&dev_attr_lpfc_max_scsicmpl_time,
  	&dev_attr_lpfc_stat_data_ctrl,
  	&dev_attr_lpfc_prot_sg_seg_cnt,
  	&dev_attr_lpfc_aer_support,
  	&dev_attr_lpfc_aer_state_cleanup,
  	&dev_attr_lpfc_sriov_nr_virtfn,
  	&dev_attr_lpfc_suppress_link_up,
  	&dev_attr_lpfc_iocb_cnt,
  	&dev_attr_iocb_hw,
  	&dev_attr_txq_hw,
  	&dev_attr_txcmplq_hw,
  	&dev_attr_lpfc_fips_level,
  	&dev_attr_lpfc_fips_rev,
  	&dev_attr_lpfc_dss,
  	&dev_attr_lpfc_sriov_hw_max_virtfn,
  	NULL,
  };
  
  struct device_attribute *lpfc_vport_attrs[] = {
  	&dev_attr_info,
  	&dev_attr_link_state,
  	&dev_attr_num_discovered_ports,
  	&dev_attr_lpfc_drvr_version,
  	&dev_attr_lpfc_log_verbose,
  	&dev_attr_lpfc_lun_queue_depth,
  	&dev_attr_lpfc_tgt_queue_depth,
  	&dev_attr_lpfc_nodev_tmo,
  	&dev_attr_lpfc_devloss_tmo,
  	&dev_attr_lpfc_hba_queue_depth,
  	&dev_attr_lpfc_peer_port_login,
  	&dev_attr_lpfc_restrict_login,
  	&dev_attr_lpfc_fcp_class,
  	&dev_attr_lpfc_use_adisc,
  	&dev_attr_lpfc_fdmi_on,
  	&dev_attr_lpfc_max_luns,
  	&dev_attr_nport_evt_cnt,
  	&dev_attr_npiv_info,
  	&dev_attr_lpfc_enable_da_id,
  	&dev_attr_lpfc_max_scsicmpl_time,
  	&dev_attr_lpfc_stat_data_ctrl,
  	&dev_attr_lpfc_static_vport,
  	&dev_attr_lpfc_fips_level,
  	&dev_attr_lpfc_fips_rev,
  	NULL,
  };
  
  /**
   * sysfs_ctlreg_write - Write method for writing to ctlreg
   * @filp: open sysfs file
   * @kobj: kernel kobject that contains the kernel class device.
   * @bin_attr: kernel attributes passed to us.
   * @buf: contains the data to be written to the adapter IOREG space.
   * @off: offset into buffer to beginning of data.
   * @count: bytes to transfer.
   *
   * Description:
   * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
   * Uses the adapter io control registers to send buf contents to the adapter.
   *
   * Returns:
   * -ERANGE off and count combo out of range
   * -EINVAL off, count or buff address invalid
   * -EPERM adapter is offline
   * value of count, buf contents written
   **/
  static ssize_t
  sysfs_ctlreg_write(struct file *filp, struct kobject *kobj,
  		   struct bin_attribute *bin_attr,
  		   char *buf, loff_t off, size_t count)
  {
  	size_t buf_off;
  	struct device *dev = container_of(kobj, struct device, kobj);
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	if (phba->sli_rev >= LPFC_SLI_REV4)
  		return -EPERM;
  
  	if ((off + count) > FF_REG_AREA_SIZE)
  		return -ERANGE;
  
  	if (count == 0) return 0;
  
  	if (off % 4 || count % 4 || (unsigned long)buf % 4)
  		return -EINVAL;
  
  	if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
  		return -EPERM;
  	}
  
  	spin_lock_irq(&phba->hbalock);
  	for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t))
  		writel(*((uint32_t *)(buf + buf_off)),
  		       phba->ctrl_regs_memmap_p + off + buf_off);
  
  	spin_unlock_irq(&phba->hbalock);
  
  	return count;
  }
  
  /**
   * sysfs_ctlreg_read - Read method for reading from ctlreg
   * @filp: open sysfs file
   * @kobj: kernel kobject that contains the kernel class device.
   * @bin_attr: kernel attributes passed to us.
   * @buf: if successful contains the data from the adapter IOREG space.
   * @off: offset into buffer to beginning of data.
   * @count: bytes to transfer.
   *
   * Description:
   * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
   * Uses the adapter io control registers to read data into buf.
   *
   * Returns:
   * -ERANGE off and count combo out of range
   * -EINVAL off, count or buff address invalid
   * value of count, buf contents read
   **/
  static ssize_t
  sysfs_ctlreg_read(struct file *filp, struct kobject *kobj,
  		  struct bin_attribute *bin_attr,
  		  char *buf, loff_t off, size_t count)
  {
  	size_t buf_off;
  	uint32_t * tmp_ptr;
  	struct device *dev = container_of(kobj, struct device, kobj);
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	if (phba->sli_rev >= LPFC_SLI_REV4)
  		return -EPERM;
  
  	if (off > FF_REG_AREA_SIZE)
  		return -ERANGE;
  
  	if ((off + count) > FF_REG_AREA_SIZE)
  		count = FF_REG_AREA_SIZE - off;
  
  	if (count == 0) return 0;
  
  	if (off % 4 || count % 4 || (unsigned long)buf % 4)
  		return -EINVAL;
  
  	spin_lock_irq(&phba->hbalock);
  
  	for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) {
  		tmp_ptr = (uint32_t *)(buf + buf_off);
  		*tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off);
  	}
  
  	spin_unlock_irq(&phba->hbalock);
  
  	return count;
  }
  
  static struct bin_attribute sysfs_ctlreg_attr = {
  	.attr = {
  		.name = "ctlreg",
  		.mode = S_IRUSR | S_IWUSR,
  	},
  	.size = 256,
  	.read = sysfs_ctlreg_read,
  	.write = sysfs_ctlreg_write,
  };
  
  /**
   * sysfs_mbox_idle - frees the sysfs mailbox
   * @phba: lpfc_hba pointer
   **/
  static void
  sysfs_mbox_idle(struct lpfc_hba *phba)
  {
  	phba->sysfs_mbox.state = SMBOX_IDLE;
  	phba->sysfs_mbox.offset = 0;
  
  	if (phba->sysfs_mbox.mbox) {
  		mempool_free(phba->sysfs_mbox.mbox,
  			     phba->mbox_mem_pool);
  		phba->sysfs_mbox.mbox = NULL;
  	}
  }
  
  /**
   * sysfs_mbox_write - Write method for writing information via mbox
   * @filp: open sysfs file
   * @kobj: kernel kobject that contains the kernel class device.
   * @bin_attr: kernel attributes passed to us.
   * @buf: contains the data to be written to sysfs mbox.
   * @off: offset into buffer to beginning of data.
   * @count: bytes to transfer.
   *
   * Description:
   * Accessed via /sys/class/scsi_host/hostxxx/mbox.
   * Uses the sysfs mbox to send buf contents to the adapter.
   *
   * Returns:
   * -ERANGE off and count combo out of range
   * -EINVAL off, count or buff address invalid
   * zero if count is zero
   * -EPERM adapter is offline
   * -ENOMEM failed to allocate memory for the mail box
   * -EAGAIN offset, state or mbox is NULL
   * count number of bytes transferred
   **/
  static ssize_t
  sysfs_mbox_write(struct file *filp, struct kobject *kobj,
  		 struct bin_attribute *bin_attr,
  		 char *buf, loff_t off, size_t count)
  {
  	struct device *dev = container_of(kobj, struct device, kobj);
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	struct lpfcMboxq  *mbox = NULL;
  
  	if ((count + off) > MAILBOX_CMD_SIZE)
  		return -ERANGE;
  
  	if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
  		return -EINVAL;
  
  	if (count == 0)
  		return 0;
  
  	if (off == 0) {
  		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  		if (!mbox)
  			return -ENOMEM;
  		memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
  	}
  
  	spin_lock_irq(&phba->hbalock);
  
  	if (off == 0) {
  		if (phba->sysfs_mbox.mbox)
  			mempool_free(mbox, phba->mbox_mem_pool);
  		else
  			phba->sysfs_mbox.mbox = mbox;
  		phba->sysfs_mbox.state = SMBOX_WRITING;
  	} else {
  		if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
  		    phba->sysfs_mbox.offset != off           ||
  		    phba->sysfs_mbox.mbox   == NULL) {
  			sysfs_mbox_idle(phba);
  			spin_unlock_irq(&phba->hbalock);
  			return -EAGAIN;
  		}
  	}
  
  	memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off,
  	       buf, count);
  
  	phba->sysfs_mbox.offset = off + count;
  
  	spin_unlock_irq(&phba->hbalock);
  
  	return count;
  }
  
  /**
   * sysfs_mbox_read - Read method for reading information via mbox
   * @filp: open sysfs file
   * @kobj: kernel kobject that contains the kernel class device.
   * @bin_attr: kernel attributes passed to us.
   * @buf: contains the data to be read from sysfs mbox.
   * @off: offset into buffer to beginning of data.
   * @count: bytes to transfer.
   *
   * Description:
   * Accessed via /sys/class/scsi_host/hostxxx/mbox.
   * Uses the sysfs mbox to receive data from to the adapter.
   *
   * Returns:
   * -ERANGE off greater than mailbox command size
   * -EINVAL off, count or buff address invalid
   * zero if off and count are zero
   * -EACCES adapter over temp
   * -EPERM garbage can value to catch a multitude of errors
   * -EAGAIN management IO not permitted, state or off error
   * -ETIME mailbox timeout
   * -ENODEV mailbox error
   * count number of bytes transferred
   **/
  static ssize_t
  sysfs_mbox_read(struct file *filp, struct kobject *kobj,
  		struct bin_attribute *bin_attr,
  		char *buf, loff_t off, size_t count)
  {
  	struct device *dev = container_of(kobj, struct device, kobj);
  	struct Scsi_Host  *shost = class_to_shost(dev);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	int rc;
  	MAILBOX_t *pmb;
  
  	if (off > MAILBOX_CMD_SIZE)
  		return -ERANGE;
  
  	if ((count + off) > MAILBOX_CMD_SIZE)
  		count = MAILBOX_CMD_SIZE - off;
  
  	if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
  		return -EINVAL;
  
  	if (off && count == 0)
  		return 0;
  
  	spin_lock_irq(&phba->hbalock);
  
  	if (phba->over_temp_state == HBA_OVER_TEMP) {
  		sysfs_mbox_idle(phba);
  		spin_unlock_irq(&phba->hbalock);
  		return  -EACCES;
  	}
  
  	if (off == 0 &&
  	    phba->sysfs_mbox.state  == SMBOX_WRITING &&
  	    phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
  		pmb = &phba->sysfs_mbox.mbox->u.mb;
  		switch (pmb->mbxCommand) {
  			/* Offline only */
  		case MBX_INIT_LINK:
  		case MBX_DOWN_LINK:
  		case MBX_CONFIG_LINK:
  		case MBX_CONFIG_RING:
  		case MBX_RESET_RING:
  		case MBX_UNREG_LOGIN:
  		case MBX_CLEAR_LA:
  		case MBX_DUMP_CONTEXT:
  		case MBX_RUN_DIAGS:
  		case MBX_RESTART:
  		case MBX_SET_MASK:
  		case MBX_SET_DEBUG:
  			if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
  				printk(KERN_WARNING "mbox_read:Command 0x%x "
  				       "is illegal in on-line state\n",
  				       pmb->mbxCommand);
  				sysfs_mbox_idle(phba);
  				spin_unlock_irq(&phba->hbalock);
  				return -EPERM;
  			}
  		case MBX_WRITE_NV:
  		case MBX_WRITE_VPARMS:
  		case MBX_LOAD_SM:
  		case MBX_READ_NV:
  		case MBX_READ_CONFIG:
  		case MBX_READ_RCONFIG:
  		case MBX_READ_STATUS:
  		case MBX_READ_XRI:
  		case MBX_READ_REV:
  		case MBX_READ_LNK_STAT:
  		case MBX_DUMP_MEMORY:
  		case MBX_DOWN_LOAD:
  		case MBX_UPDATE_CFG:
  		case MBX_KILL_BOARD:
  		case MBX_LOAD_AREA:
  		case MBX_LOAD_EXP_ROM:
  		case MBX_BEACON:
  		case MBX_DEL_LD_ENTRY:
  		case MBX_SET_VARIABLE:
  		case MBX_WRITE_WWN:
  		case MBX_PORT_CAPABILITIES:
  		case MBX_PORT_IOV_CONTROL:
  			break;
  		case MBX_SECURITY_MGMT:
  		case MBX_AUTH_PORT:
  			if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
  				printk(KERN_WARNING "mbox_read:Command 0x%x "
  				       "is not permitted\n", pmb->mbxCommand);
  				sysfs_mbox_idle(phba);
  				spin_unlock_irq(&phba->hbalock);
  				return -EPERM;
  			}
  			break;
  		case MBX_READ_SPARM64:
  		case MBX_READ_TOPOLOGY:
  		case MBX_REG_LOGIN:
  		case MBX_REG_LOGIN64:
  		case MBX_CONFIG_PORT:
  		case MBX_RUN_BIU_DIAG:
  			printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
  			       pmb->mbxCommand);
  			sysfs_mbox_idle(phba);
  			spin_unlock_irq(&phba->hbalock);
  			return -EPERM;
  		default:
  			printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
  			       pmb->mbxCommand);
  			sysfs_mbox_idle(phba);
  			spin_unlock_irq(&phba->hbalock);
  			return -EPERM;
  		}
  
  		/* If HBA encountered an error attention, allow only DUMP
  		 * or RESTART mailbox commands until the HBA is restarted.
  		 */
  		if (phba->pport->stopped &&
  		    pmb->mbxCommand != MBX_DUMP_MEMORY &&
  		    pmb->mbxCommand != MBX_RESTART &&
  		    pmb->mbxCommand != MBX_WRITE_VPARMS &&
  		    pmb->mbxCommand != MBX_WRITE_WWN)
  			lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
  					"1259 mbox: Issued mailbox cmd "
  					"0x%x while in stopped state.\n",
  					pmb->mbxCommand);
  
  		phba->sysfs_mbox.mbox->vport = vport;
  
  		/* Don't allow mailbox commands to be sent when blocked
  		 * or when in the middle of discovery
  		 */
  		if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
  			sysfs_mbox_idle(phba);
  			spin_unlock_irq(&phba->hbalock);
  			return  -EAGAIN;
  		}
  
  		if ((vport->fc_flag & FC_OFFLINE_MODE) ||
  		    (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
  
  			spin_unlock_irq(&phba->hbalock);
  			rc = lpfc_sli_issue_mbox (phba,
  						  phba->sysfs_mbox.mbox,
  						  MBX_POLL);
  			spin_lock_irq(&phba->hbalock);
  
  		} else {
  			spin_unlock_irq(&phba->hbalock);
  			rc = lpfc_sli_issue_mbox_wait (phba,
  						       phba->sysfs_mbox.mbox,
  				lpfc_mbox_tmo_val(phba, pmb->mbxCommand) * HZ);
  			spin_lock_irq(&phba->hbalock);
  		}
  
  		if (rc != MBX_SUCCESS) {
  			if (rc == MBX_TIMEOUT) {
  				phba->sysfs_mbox.mbox = NULL;
  			}
  			sysfs_mbox_idle(phba);
  			spin_unlock_irq(&phba->hbalock);
  			return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
  		}
  		phba->sysfs_mbox.state = SMBOX_READING;
  	}
  	else if (phba->sysfs_mbox.offset != off ||
  		 phba->sysfs_mbox.state  != SMBOX_READING) {
  		printk(KERN_WARNING  "mbox_read: Bad State\n");
  		sysfs_mbox_idle(phba);
  		spin_unlock_irq(&phba->hbalock);
  		return -EAGAIN;
  	}
  
  	memcpy(buf, (uint8_t *) &pmb + off, count);
  
  	phba->sysfs_mbox.offset = off + count;
  
  	if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
  		sysfs_mbox_idle(phba);
  
  	spin_unlock_irq(&phba->hbalock);
  
  	return count;
  }
  
  static struct bin_attribute sysfs_mbox_attr = {
  	.attr = {
  		.name = "mbox",
  		.mode = S_IRUSR | S_IWUSR,
  	},
  	.size = MAILBOX_SYSFS_MAX,
  	.read = sysfs_mbox_read,
  	.write = sysfs_mbox_write,
  };
  
  /**
   * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries
   * @vport: address of lpfc vport structure.
   *
   * Return codes:
   * zero on success
   * error return code from sysfs_create_bin_file()
   **/
  int
  lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
  {
  	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
  	int error;
  
  	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
  				      &sysfs_drvr_stat_data_attr);
  
  	/* Virtual ports do not need ctrl_reg and mbox */
  	if (error || vport->port_type == LPFC_NPIV_PORT)
  		goto out;
  
  	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
  				      &sysfs_ctlreg_attr);
  	if (error)
  		goto out_remove_stat_attr;
  
  	error = sysfs_create_bin_file(&shost->shost_dev.kobj,
  				      &sysfs_mbox_attr);
  	if (error)
  		goto out_remove_ctlreg_attr;
  
  	return 0;
  out_remove_ctlreg_attr:
  	sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
  out_remove_stat_attr:
  	sysfs_remove_bin_file(&shost->shost_dev.kobj,
  			&sysfs_drvr_stat_data_attr);
  out:
  	return error;
  }
  
  /**
   * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries
   * @vport: address of lpfc vport structure.
   **/
  void
  lpfc_free_sysfs_attr(struct lpfc_vport *vport)
  {
  	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
  	sysfs_remove_bin_file(&shost->shost_dev.kobj,
  		&sysfs_drvr_stat_data_attr);
  	/* Virtual ports do not need ctrl_reg and mbox */
  	if (vport->port_type == LPFC_NPIV_PORT)
  		return;
  	sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
  	sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
  }
  
  /*
   * Dynamic FC Host Attributes Support
   */
  
  /**
   * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id
   * @shost: kernel scsi host pointer.
   **/
  static void
  lpfc_get_host_port_id(struct Scsi_Host *shost)
  {
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  
  	/* note: fc_myDID already in cpu endianness */
  	fc_host_port_id(shost) = vport->fc_myDID;
  }
  
  /**
   * lpfc_get_host_port_type - Set the value of the scsi host port type
   * @shost: kernel scsi host pointer.
   **/
  static void
  lpfc_get_host_port_type(struct Scsi_Host *shost)
  {
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	spin_lock_irq(shost->host_lock);
  
  	if (vport->port_type == LPFC_NPIV_PORT) {
  		fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
  	} else if (lpfc_is_link_up(phba)) {
  		if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
  			if (vport->fc_flag & FC_PUBLIC_LOOP)
  				fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
  			else
  				fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
  		} else {
  			if (vport->fc_flag & FC_FABRIC)
  				fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
  			else
  				fc_host_port_type(shost) = FC_PORTTYPE_PTP;
  		}
  	} else
  		fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
  
  	spin_unlock_irq(shost->host_lock);
  }
  
  /**
   * lpfc_get_host_port_state - Set the value of the scsi host port state
   * @shost: kernel scsi host pointer.
   **/
  static void
  lpfc_get_host_port_state(struct Scsi_Host *shost)
  {
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	spin_lock_irq(shost->host_lock);
  
  	if (vport->fc_flag & FC_OFFLINE_MODE)
  		fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
  	else {
  		switch (phba->link_state) {
  		case LPFC_LINK_UNKNOWN:
  		case LPFC_LINK_DOWN:
  			fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
  			break;
  		case LPFC_LINK_UP:
  		case LPFC_CLEAR_LA:
  		case LPFC_HBA_READY:
  			/* Links up, beyond this port_type reports state */
  			fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
  			break;
  		case LPFC_HBA_ERROR:
  			fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
  			break;
  		default:
  			fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
  			break;
  		}
  	}
  
  	spin_unlock_irq(shost->host_lock);
  }
  
  /**
   * lpfc_get_host_speed - Set the value of the scsi host speed
   * @shost: kernel scsi host pointer.
   **/
  static void
  lpfc_get_host_speed(struct Scsi_Host *shost)
  {
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  
  	spin_lock_irq(shost->host_lock);
  
  	if (lpfc_is_link_up(phba)) {
  		switch(phba->fc_linkspeed) {
  		case LPFC_LINK_SPEED_1GHZ:
  			fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
  			break;
  		case LPFC_LINK_SPEED_2GHZ:
  			fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
  			break;
  		case LPFC_LINK_SPEED_4GHZ:
  			fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
  			break;
  		case LPFC_LINK_SPEED_8GHZ:
  			fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
  			break;
  		case LPFC_LINK_SPEED_10GHZ:
  			fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
  			break;
  		case LPFC_LINK_SPEED_16GHZ:
  			fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
  			break;
  		default:
  			fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
  			break;
  		}
  	} else
  		fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
  
  	spin_unlock_irq(shost->host_lock);
  }
  
  /**
   * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name
   * @shost: kernel scsi host pointer.
   **/
  static void
  lpfc_get_host_fabric_name (struct Scsi_Host *shost)
  {
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	u64 node_name;
  
  	spin_lock_irq(shost->host_lock);
  
  	if ((vport->fc_flag & FC_FABRIC) ||
  	    ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
  	     (vport->fc_flag & FC_PUBLIC_LOOP)))
  		node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn);
  	else
  		/* fabric is local port if there is no F/FL_Port */
  		node_name = 0;
  
  	spin_unlock_irq(shost->host_lock);
  
  	fc_host_fabric_name(shost) = node_name;
  }
  
  /**
   * lpfc_get_stats - Return statistical information about the adapter
   * @shost: kernel scsi host pointer.
   *
   * Notes:
   * NULL on error for link down, no mbox pool, sli2 active,
   * management not allowed, memory allocation error, or mbox error.
   *
   * Returns:
   * NULL for error
   * address of the adapter host statistics
   **/
  static struct fc_host_statistics *
  lpfc_get_stats(struct Scsi_Host *shost)
  {
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	struct lpfc_sli   *psli = &phba->sli;
  	struct fc_host_statistics *hs = &phba->link_stats;
  	struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets;
  	LPFC_MBOXQ_t *pmboxq;
  	MAILBOX_t *pmb;
  	unsigned long seconds;
  	int rc = 0;
  
  	/*
  	 * prevent udev from issuing mailbox commands until the port is
  	 * configured.
  	 */
  	if (phba->link_state < LPFC_LINK_DOWN ||
  	    !phba->mbox_mem_pool ||
  	    (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0)
  		return NULL;
  
  	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
  		return NULL;
  
  	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmboxq)
  		return NULL;
  	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
  
  	pmb = &pmboxq->u.mb;
  	pmb->mbxCommand = MBX_READ_STATUS;
  	pmb->mbxOwner = OWN_HOST;
  	pmboxq->context1 = NULL;
  	pmboxq->vport = vport;
  
  	if (vport->fc_flag & FC_OFFLINE_MODE)
  		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
  	else
  		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
  
  	if (rc != MBX_SUCCESS) {
  		if (rc != MBX_TIMEOUT)
  			mempool_free(pmboxq, phba->mbox_mem_pool);
  		return NULL;
  	}
  
  	memset(hs, 0, sizeof (struct fc_host_statistics));
  
  	hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt;
  	hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256);
  	hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
  	hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256);
  
  	memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
  	pmb->mbxCommand = MBX_READ_LNK_STAT;
  	pmb->mbxOwner = OWN_HOST;
  	pmboxq->context1 = NULL;
  	pmboxq->vport = vport;
  
  	if (vport->fc_flag & FC_OFFLINE_MODE)
  		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
  	else
  		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
  
  	if (rc != MBX_SUCCESS) {
  		if (rc != MBX_TIMEOUT)
  			mempool_free(pmboxq, phba->mbox_mem_pool);
  		return NULL;
  	}
  
  	hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
  	hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
  	hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
  	hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
  	hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
  	hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
  	hs->error_frames = pmb->un.varRdLnk.crcCnt;
  
  	hs->link_failure_count -= lso->link_failure_count;
  	hs->loss_of_sync_count -= lso->loss_of_sync_count;
  	hs->loss_of_signal_count -= lso->loss_of_signal_count;
  	hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count;
  	hs->invalid_tx_word_count -= lso->invalid_tx_word_count;
  	hs->invalid_crc_count -= lso->invalid_crc_count;
  	hs->error_frames -= lso->error_frames;
  
  	if (phba->hba_flag & HBA_FCOE_MODE) {
  		hs->lip_count = -1;
  		hs->nos_count = (phba->link_events >> 1);
  		hs->nos_count -= lso->link_events;
  	} else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
  		hs->lip_count = (phba->fc_eventTag >> 1);
  		hs->lip_count -= lso->link_events;
  		hs->nos_count = -1;
  	} else {
  		hs->lip_count = -1;
  		hs->nos_count = (phba->fc_eventTag >> 1);
  		hs->nos_count -= lso->link_events;
  	}
  
  	hs->dumped_frames = -1;
  
  	seconds = get_seconds();
  	if (seconds < psli->stats_start)
  		hs->seconds_since_last_reset = seconds +
  				((unsigned long)-1 - psli->stats_start);
  	else
  		hs->seconds_since_last_reset = seconds - psli->stats_start;
  
  	mempool_free(pmboxq, phba->mbox_mem_pool);
  
  	return hs;
  }
  
  /**
   * lpfc_reset_stats - Copy the adapter link stats information
   * @shost: kernel scsi host pointer.
   **/
  static void
  lpfc_reset_stats(struct Scsi_Host *shost)
  {
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_hba   *phba = vport->phba;
  	struct lpfc_sli   *psli = &phba->sli;
  	struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets;
  	LPFC_MBOXQ_t *pmboxq;
  	MAILBOX_t *pmb;
  	int rc = 0;
  
  	if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)
  		return;
  
  	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  	if (!pmboxq)
  		return;
  	memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
  
  	pmb = &pmboxq->u.mb;
  	pmb->mbxCommand = MBX_READ_STATUS;
  	pmb->mbxOwner = OWN_HOST;
  	pmb->un.varWords[0] = 0x1; /* reset request */
  	pmboxq->context1 = NULL;
  	pmboxq->vport = vport;
  
  	if ((vport->fc_flag & FC_OFFLINE_MODE) ||
  		(!(psli->sli_flag & LPFC_SLI_ACTIVE)))
  		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
  	else
  		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
  
  	if (rc != MBX_SUCCESS) {
  		if (rc != MBX_TIMEOUT)
  			mempool_free(pmboxq, phba->mbox_mem_pool);
  		return;
  	}
  
  	memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
  	pmb->mbxCommand = MBX_READ_LNK_STAT;
  	pmb->mbxOwner = OWN_HOST;
  	pmboxq->context1 = NULL;
  	pmboxq->vport = vport;
  
  	if ((vport->fc_flag & FC_OFFLINE_MODE) ||
  	    (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
  		rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
  	else
  		rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
  
  	if (rc != MBX_SUCCESS) {
  		if (rc != MBX_TIMEOUT)
  			mempool_free( pmboxq, phba->mbox_mem_pool);
  		return;
  	}
  
  	lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt;
  	lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt;
  	lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt;
  	lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt;
  	lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord;
  	lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt;
  	lso->error_frames = pmb->un.varRdLnk.crcCnt;
  	if (phba->hba_flag & HBA_FCOE_MODE)
  		lso->link_events = (phba->link_events >> 1);
  	else
  		lso->link_events = (phba->fc_eventTag >> 1);
  
  	psli->stats_start = get_seconds();
  
  	mempool_free(pmboxq, phba->mbox_mem_pool);
  
  	return;
  }
  
  /*
   * The LPFC driver treats linkdown handling as target loss events so there
   * are no sysfs handlers for link_down_tmo.
   */
  
  /**
   * lpfc_get_node_by_target - Return the nodelist for a target
   * @starget: kernel scsi target pointer.
   *
   * Returns:
   * address of the node list if found
   * NULL target not found
   **/
  static struct lpfc_nodelist *
  lpfc_get_node_by_target(struct scsi_target *starget)
  {
  	struct Scsi_Host  *shost = dev_to_shost(starget->dev.parent);
  	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
  	struct lpfc_nodelist *ndlp;
  
  	spin_lock_irq(shost->host_lock);
  	/* Search for this, mapped, target ID */
  	list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
  		if (NLP_CHK_NODE_ACT(ndlp) &&
  		    ndlp->nlp_state == NLP_STE_MAPPED_NODE &&
  		    starget->id == ndlp->nlp_sid) {
  			spin_unlock_irq(shost->host_lock);
  			return ndlp;
  		}
  	}
  	spin_unlock_irq(shost->host_lock);
  	return NULL;
  }
  
  /**
   * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1
   * @starget: kernel scsi target pointer.
   **/
  static void
  lpfc_get_starget_port_id(struct scsi_target *starget)
  {
  	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
  
  	fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
  }
  
  /**
   * lpfc_get_starget_node_name - Set the target node name
   * @starget: kernel scsi target pointer.
   *
   * Description: Set the target node name to the ndlp node name wwn or zero.
   **/
  static void
  lpfc_get_starget_node_name(struct scsi_target *starget)
  {
  	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
  
  	fc_starget_node_name(starget) =
  		ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
  }
  
  /**
   * lpfc_get_starget_port_name - Set the target port name
   * @starget: kernel scsi target pointer.
   *
   * Description:  set the target port name to the ndlp port name wwn or zero.
   **/
  static void
  lpfc_get_starget_port_name(struct scsi_target *starget)
  {
  	struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget);
  
  	fc_starget_port_name(starget) =
  		ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
  }
  
  /**
   * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo
   * @rport: fc rport address.
   * @timeout: new value for dev loss tmo.
   *
   * Description:
   * If timeout is non zero set the dev_loss_tmo to timeout, else set
   * dev_loss_tmo to one.
   **/
  static void
  lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
  {
  	if (timeout)
  		rport->dev_loss_tmo = timeout;
  	else
  		rport->dev_loss_tmo = 1;
  }
  
  /**
   * lpfc_rport_show_function - Return rport target information
   *
   * Description:
   * Macro that uses field to generate a function with the name lpfc_show_rport_
   *
   * lpfc_show_rport_##field: returns the bytes formatted in buf
   * @cdev: class converted to an fc_rport.
   * @buf: on return contains the target_field or zero.
   *
   * Returns: size of formatted string.
   **/
  #define lpfc_rport_show_function(field, format_string, sz, cast)	\
  static ssize_t								\
  lpfc_show_rport_##field (struct device *dev,				\
  			 struct device_attribute *attr,			\
  			 char *buf)					\
  {									\
  	struct fc_rport *rport = transport_class_to_rport(dev);		\
  	struct lpfc_rport_data *rdata = rport->hostdata;		\
  	return snprintf(buf, sz, format_string,				\
  		(rdata->target) ? cast rdata->target->field : 0);	\
  }
  
  #define lpfc_rport_rd_attr(field, format_string, sz)			\
  	lpfc_rport_show_function(field, format_string, sz, )		\
  static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL)
  
  /**
   * lpfc_set_vport_symbolic_name - Set the vport's symbolic name
   * @fc_vport: The fc_vport who's symbolic name has been changed.
   *
   * Description:
   * This function is called by the transport after the @fc_vport's symbolic name
   * has been changed. This function re-registers the symbolic name with the
   * switch to propagate the change into the fabric if the vport is active.
   **/
  static void
  lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport)
  {
  	struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data;
  
  	if (vport->port_state == LPFC_VPORT_READY)
  		lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0);
  }
  
  /**
   * lpfc_hba_log_verbose_init - Set hba's log verbose level
   * @phba: Pointer to lpfc_hba struct.
   *
   * This function is called by the lpfc_get_cfgparam() routine to set the
   * module lpfc_log_verbose into the @phba cfg_log_verbose for use with
   * log message according to the module's lpfc_log_verbose parameter setting
   * before hba port or vport created.
   **/
  static void
  lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose)
  {
  	phba->cfg_log_verbose = verbose;
  }
  
  struct fc_function_template lpfc_transport_functions = {
  	/* fixed attributes the driver supports */
  	.show_host_node_name = 1,
  	.show_host_port_name = 1,
  	.show_host_supported_classes = 1,
  	.show_host_supported_fc4s = 1,
  	.show_host_supported_speeds = 1,
  	.show_host_maxframe_size = 1,
  	.show_host_symbolic_name = 1,
  
  	/* dynamic attributes the driver supports */
  	.get_host_port_id = lpfc_get_host_port_id,
  	.show_host_port_id = 1,
  
  	.get_host_port_type = lpfc_get_host_port_type,
  	.show_host_port_type = 1,
  
  	.get_host_port_state = lpfc_get_host_port_state,
  	.show_host_port_state = 1,
  
  	/* active_fc4s is shown but doesn't change (thus no get function) */
  	.show_host_active_fc4s = 1,
  
  	.get_host_speed = lpfc_get_host_speed,
  	.show_host_speed = 1,
  
  	.get_host_fabric_name = lpfc_get_host_fabric_name,
  	.show_host_fabric_name = 1,
  
  	/*
  	 * The LPFC driver treats linkdown handling as target loss events
  	 * so there are no sysfs handlers for link_down_tmo.
  	 */
  
  	.get_fc_host_stats = lpfc_get_stats,
  	.reset_fc_host_stats = lpfc_reset_stats,
  
  	.dd_fcrport_size = sizeof(struct lpfc_rport_data),
  	.show_rport_maxframe_size = 1,
  	.show_rport_supported_classes = 1,
  
  	.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
  	.show_rport_dev_loss_tmo = 1,
  
  	.get_starget_port_id  = lpfc_get_starget_port_id,
  	.show_starget_port_id = 1,
  
  	.get_starget_node_name = lpfc_get_starget_node_name,
  	.show_starget_node_name = 1,
  
  	.get_starget_port_name = lpfc_get_starget_port_name,
  	.show_starget_port_name = 1,
  
  	.issue_fc_host_lip = lpfc_issue_lip,
  	.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
  	.terminate_rport_io = lpfc_terminate_rport_io,
  
  	.dd_fcvport_size = sizeof(struct lpfc_vport *),
  
  	.vport_disable = lpfc_vport_disable,
  
  	.set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
  
  	.bsg_request = lpfc_bsg_request,
  	.bsg_timeout = lpfc_bsg_timeout,
  };
  
  struct fc_function_template lpfc_vport_transport_functions = {
  	/* fixed attributes the driver supports */
  	.show_host_node_name = 1,
  	.show_host_port_name = 1,
  	.show_host_supported_classes = 1,
  	.show_host_supported_fc4s = 1,
  	.show_host_supported_speeds = 1,
  	.show_host_maxframe_size = 1,
  	.show_host_symbolic_name = 1,
  
  	/* dynamic attributes the driver supports */
  	.get_host_port_id = lpfc_get_host_port_id,
  	.show_host_port_id = 1,
  
  	.get_host_port_type = lpfc_get_host_port_type,
  	.show_host_port_type = 1,
  
  	.get_host_port_state = lpfc_get_host_port_state,
  	.show_host_port_state = 1,
  
  	/* active_fc4s is shown but doesn't change (thus no get function) */
  	.show_host_active_fc4s = 1,
  
  	.get_host_speed = lpfc_get_host_speed,
  	.show_host_speed = 1,
  
  	.get_host_fabric_name = lpfc_get_host_fabric_name,
  	.show_host_fabric_name = 1,
  
  	/*
  	 * The LPFC driver treats linkdown handling as target loss events
  	 * so there are no sysfs handlers for link_down_tmo.
  	 */
  
  	.get_fc_host_stats = lpfc_get_stats,
  	.reset_fc_host_stats = lpfc_reset_stats,
  
  	.dd_fcrport_size = sizeof(struct lpfc_rport_data),
  	.show_rport_maxframe_size = 1,
  	.show_rport_supported_classes = 1,
  
  	.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
  	.show_rport_dev_loss_tmo = 1,
  
  	.get_starget_port_id  = lpfc_get_starget_port_id,
  	.show_starget_port_id = 1,
  
  	.get_starget_node_name = lpfc_get_starget_node_name,
  	.show_starget_node_name = 1,
  
  	.get_starget_port_name = lpfc_get_starget_port_name,
  	.show_starget_port_name = 1,
  
  	.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
  	.terminate_rport_io = lpfc_terminate_rport_io,
  
  	.vport_disable = lpfc_vport_disable,
  
  	.set_vport_symbolic_name = lpfc_set_vport_symbolic_name,
  };
  
  /**
   * lpfc_get_cfgparam - Used during probe_one to init the adapter structure
   * @phba: lpfc_hba pointer.
   **/
  void
  lpfc_get_cfgparam(struct lpfc_hba *phba)
  {
  	lpfc_cr_delay_init(phba, lpfc_cr_delay);
  	lpfc_cr_count_init(phba, lpfc_cr_count);
  	lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support);
  	lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl);
  	lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type);
  	lpfc_ack0_init(phba, lpfc_ack0);
  	lpfc_topology_init(phba, lpfc_topology);
  	lpfc_link_speed_init(phba, lpfc_link_speed);
  	lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
  	lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
  	lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
  	lpfc_use_msi_init(phba, lpfc_use_msi);
  	lpfc_fcp_imax_init(phba, lpfc_fcp_imax);
  	lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count);
  	lpfc_fcp_eq_count_init(phba, lpfc_fcp_eq_count);
  	lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
  	lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
  	lpfc_enable_bg_init(phba, lpfc_enable_bg);
  	if (phba->sli_rev == LPFC_SLI_REV4)
  		phba->cfg_poll = 0;
  	else
  	phba->cfg_poll = lpfc_poll;
  	phba->cfg_soft_wwnn = 0L;
  	phba->cfg_soft_wwpn = 0L;
  	lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
  	lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt);
  	lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
  	lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
  	lpfc_aer_support_init(phba, lpfc_aer_support);
  	lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn);
  	lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
  	lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt);
  	phba->cfg_enable_dss = 1;
  	return;
  }
  
  /**
   * lpfc_get_vport_cfgparam - Used during port create, init the vport structure
   * @vport: lpfc_vport pointer.
   **/
  void
  lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
  {
  	lpfc_log_verbose_init(vport, lpfc_log_verbose);
  	lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth);
  	lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth);
  	lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo);
  	lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo);
  	lpfc_peer_port_login_init(vport, lpfc_peer_port_login);
  	lpfc_restrict_login_init(vport, lpfc_restrict_login);
  	lpfc_fcp_class_init(vport, lpfc_fcp_class);
  	lpfc_use_adisc_init(vport, lpfc_use_adisc);
  	lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
  	lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
  	lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
  	lpfc_max_luns_init(vport, lpfc_max_luns);
  	lpfc_scan_down_init(vport, lpfc_scan_down);
  	lpfc_enable_da_id_init(vport, lpfc_enable_da_id);
  	return;
  }
  