lpfc_attr.c

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/*******************************************************************
 * This file is part of the Emulex Linux Device Driver for         *
 * Fibre Channel Host Bus Adapters.                                *
 * Copyright (C) 2004-2012 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/module.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

/*
 * Write key size should be multiple of 4. If write key is changed
 * make sure that library write key is also changed.
 */
#define LPFC_REG_WRITE_KEY_SIZE 4
#define LPFC_REG_WRITE_KEY  "EMLX"

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;
}

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");
}

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);
}

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));
}

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);
}

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);
}

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);
}

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);
}

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);
}

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));
}

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);
}

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;
    uint32_t if_type;
    uint8_t sli_family;
    char fwrev[FW_REV_STR_SIZE];
    int len;

    lpfc_decode_firmware_rev(phba, fwrev, 1);
    if_type = phba->sli4_hba.pc_sli4_params.if_type;
    sli_family = phba->sli4_hba.pc_sli4_params.sli_family;

    if (phba->sli_rev < LPFC_SLI_REV4)
        len = snprintf(buf, PAGE_SIZE, "%s, sli-%d\n",
                   fwrev, phba->sli_rev);
    else
        len = snprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n",
                   fwrev, phba->sli_rev, if_type, sli_family);

    return len;
}

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);
}

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);
}

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;
}

static ssize_t
lpfc_sli4_protocol_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->sli_rev < LPFC_SLI_REV4)
        return snprintf(buf, PAGE_SIZE, "fc\n");

    if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) {
        if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE)
            return snprintf(buf, PAGE_SIZE, "fcoe\n");
        if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)
            return snprintf(buf, PAGE_SIZE, "fc\n");
    }
    return snprintf(buf, PAGE_SIZE, "unknown\n");
}

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;
}

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);
}

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;
}

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;
}

int
lpfc_selective_reset(struct lpfc_hba *phba)
{
    struct completion online_compl;
    int status = 0;
    int rc;

    if (!phba->cfg_enable_hba_reset)
        return -EACCES;

    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;
}

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 (!phba->cfg_enable_hba_reset)
        return -EACCES;

    if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
        status = phba->lpfc_selective_reset(phba);

    if (status == 0)
        return strlen(buf);
    else
        return status;
}

int
lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
{
    struct lpfc_register portstat_reg = {0};
    int i;

    msleep(100);
    lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
           &portstat_reg.word0);

    /* verify if privilaged for the request operation */
    if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) &&
        !bf_get(lpfc_sliport_status_err, &portstat_reg))
        return -EPERM;

    /* 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;
}

static ssize_t
lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
{
    struct completion online_compl;
    struct pci_dev *pdev = phba->pcidev;
    uint32_t before_fc_flag;
    uint32_t sriov_nr_virtfn;
    uint32_t reg_val;
    int status = 0, rc = 0;
    int job_posted = 1, sriov_err;

    if (!phba->cfg_enable_hba_reset)
        return -EACCES;

    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;

    /* Keep state if we need to restore back */
    before_fc_flag = phba->pport->fc_flag;
    sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;

    /* Disable SR-IOV virtual functions if enabled */
    if (phba->cfg_sriov_nr_virtfn) {
        pci_disable_sriov(pdev);
        phba->cfg_sriov_nr_virtfn = 0;
    }
    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 == -EPERM) {
        /* no privilage for reset */
        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
                "3150 No privilage to perform the requested "
                "access: x%x\n", reg_val);
    } else if (rc == -EIO) {
        /* reset failed, there is nothing more we can do */
        lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
                "3153 Fail to perform the requested "
                "access: x%x\n", reg_val);
        return rc;
    }

    /* keep the original port state */
    if (before_fc_flag & FC_OFFLINE_MODE)
        goto out;

    init_completion(&online_compl);
    job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
                       LPFC_EVT_ONLINE);
    if (!job_posted)
        goto out;

    wait_for_completion(&online_compl);

out:
    /* in any case, restore the virtual functions enabled as before */
    if (sriov_nr_virtfn) {
        sriov_err =
            lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
        if (!sriov_err)
            phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
    }

    /* return proper error code */
    if (!rc) {
        if (!job_posted)
            rc = -ENOMEM;
        else if (status)
            rc = -EIO;
    }
    return rc;
}

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);
}

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);
}

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;
    char *board_mode_str = NULL;
    int status = 0;
    int rc;

    if (!phba->cfg_enable_hba_reset) {
        status = -EACCES;
        goto board_mode_out;
    }

    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) {
            status = -ENOMEM;
            goto board_mode_out;
        }
        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)
            status = -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)
            status = -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
        status = -EINVAL;

board_mode_out:
    if (!status)
        return strlen(buf);
    else {
        board_mode_str = strchr(buf, '\n');
        if (board_mode_str)
            *board_mode_str = '\0';
        lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
                 "3097 Failed \"%s\", status(%d), "
                 "fc_flag(x%x)\n",
                 buf, status, phba->pport->fc_flag);
        return status;
    }
}

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;
}

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");
}

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");
}

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");
}

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");
}

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");
}

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");
}

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);
}

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);
}

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);
}

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);
}

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);
}

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 ");
}

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);
}

#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);\
}

#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);\
}

#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;\
}

#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;\
}

#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;\
}

#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);\
}

#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);\
}

#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;\
}

#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;\
}

#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 DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);

static char *lpfc_soft_wwn_key = "C99G71SL8032A";

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);

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);
}

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);

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);
}

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);

LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2,
    "FCF Fast failover=1 Priority failover=2");

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");

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);
}

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;
}

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);
}

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)

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, 1, 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);

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;
}

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.
*/

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 (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
            val == 4) {
            lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
                "3113 Loop mode not supported at speed %d\n",
                phba->cfg_link_speed);
            phba->cfg_topology = prev_val;
            return -EINVAL;
        }
        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);

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);

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;
}


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)


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.
*/
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 == LPFC_USER_LINK_SPEED_16G &&
         phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
                "3112 lpfc_link_speed attribute cannot be set "
                "to %d. Speed is not supported in loop mode.\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)


static int
lpfc_link_speed_init(struct lpfc_hba *phba, int val)
{
    if (val == LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
            "3111 lpfc_link_speed of %d cannot "
            "support loop mode, setting topology to default.\n",
             val);
        phba->cfg_topology = 0;
    }
    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.
*/

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)


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);

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);

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)


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);

static ssize_t
lpfc_fcp_imax_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, i;

    /* fcp_imax is only valid for SLI4 */
    if (phba->sli_rev != LPFC_SLI_REV4)
        return -EINVAL;

    /* Sanity check on user data */
    if (!isdigit(buf[0]))
        return -EINVAL;
    if (sscanf(buf, "%i", &val) != 1)
        return -EINVAL;

    /*
     * Value range for the HBA is [5000,5000000]
     * The value for each EQ depends on how many EQs are configured.
     */
    if (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)
        return -EINVAL;

    phba->cfg_fcp_imax = (uint32_t)val;
    for (i = 0; i < phba->cfg_fcp_io_channel; i += LPFC_MAX_EQ_DELAY)
        lpfc_modify_fcp_eq_delay(phba, i);

    return strlen(buf);
}

/*
# lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second
# for the HBA.
#
# Value range is [5,000 to 5,000,000]. Default value is 50,000.
*/
static int lpfc_fcp_imax = LPFC_DEF_IMAX;
module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(lpfc_fcp_imax,
        "Set the maximum number of FCP interrupts per second per HBA");
lpfc_param_show(fcp_imax)


static int
lpfc_fcp_imax_init(struct lpfc_hba *phba, int val)
{
    if (phba->sli_rev != LPFC_SLI_REV4) {
        phba->cfg_fcp_imax = 0;
        return 0;
    }

    if (val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) {
        phba->cfg_fcp_imax = val;
        return 0;
    }

    lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
            "3016 fcp_imax: %d out of range, using default\n", val);
    phba->cfg_fcp_imax = LPFC_DEF_IMAX;

    return 0;
}

static DEVICE_ATTR(lpfc_fcp_imax, S_IRUGO | S_IWUSR,
           lpfc_fcp_imax_show, lpfc_fcp_imax_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_fcp_io_sched: Determine scheduling algrithmn for issuing FCP cmds
# range is [0,1]. Default value is 0.
# For [0], FCP commands are issued to Work Queues ina round robin fashion.
# For [1], FCP commands are issued to a Work Queue associated with the
#          current CPU.
*/
LPFC_ATTR_RW(fcp_io_sched, 0, 0, 1, "Determine scheduling algrithmn for "
        "issuing commands [0] - Round Robin, [1] - Current CPU");

/*
# 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_wq_count: Set the number of fast-path FCP work queues
# This parameter is ignored and will eventually be depricated
#
# Value range is [1,7]. Default value is 4.
*/
LPFC_ATTR_R(fcp_wq_count, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
        LPFC_FCP_IO_CHAN_MAX,
        "Set the number of fast-path FCP work queues, if possible");

/*
# lpfc_fcp_eq_count: Set the number of FCP EQ/CQ/WQ IO channels
#
# Value range is [1,7]. Default value is 4.
*/
LPFC_ATTR_R(fcp_eq_count, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
        LPFC_FCP_IO_CHAN_MAX,
        "Set the number of fast-path FCP event queues, if possible");

/*
# lpfc_fcp_io_channel: Set the number of FCP EQ/CQ/WQ IO channels
#
# Value range is [1,7]. Default value is 4.
*/
LPFC_ATTR_R(fcp_io_channel, LPFC_FCP_IO_CHAN_DEF, LPFC_FCP_IO_CHAN_MIN,
        LPFC_FCP_IO_CHAN_MAX,
        "Set the number of FCP I/O channels");

/*
# 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_fcp_look_ahead: Look ahead for completions in FCP start routine
#       0  = disabled (default)
#       1  = enabled
# Value range is [0,1]. Default value is 0.
*/
unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF;

module_param(lpfc_fcp_look_ahead, uint, S_IRUGO);
MODULE_PARM_DESC(lpfc_fcp_look_ahead, "Look ahead for completions");

/*
# 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.
#   - SHOST_DIF_TYPE1_PROTECTION    1
#       HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection
#   - SHOST_DIX_TYPE0_PROTECTION    8
#       HBA supports DIX Type 0: Host to HBA protection only
#   - SHOST_DIX_TYPE1_PROTECTION    16
#       HBA supports DIX Type 1: Host to HBA  Type 1 protection
#
*/
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) T10-DIF CRC 2) IP checksum
#   - 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_fcp_io_sched,
    &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_fcf_failover_policy,
    &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_fcp_io_channel,
    &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,
    &dev_attr_protocol,
    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,
};

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 <= LPFC_REG_WRITE_KEY_SIZE)
        return 0;

    if (off % 4 || count % 4 || (unsigned long)buf % 4)
        return -EINVAL;

    /* This is to protect HBA registers from accidental writes. */
    if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE))
        return -EINVAL;

    if (!(vport->fc_flag & FC_OFFLINE_MODE))
        return -EPERM;

    spin_lock_irq(&phba->hbalock);
    for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE;
            buf_off += sizeof(uint32_t))
        writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)),
               phba->ctrl_regs_memmap_p + off + buf_off);

    spin_unlock_irq(&phba->hbalock);

    return count;
}

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,
};

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)
{
    return -EPERM;
}

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)
{
    return -EPERM;
}

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,
};

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;
}

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
 */

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;
}

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);
}

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, reports port state accordingly */
            if (vport->port_state < LPFC_VPORT_READY)
                fc_host_port_state(shost) =
                            FC_PORTSTATE_BYPASSED;
            else
                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);
}

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);
}

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->port_state > LPFC_FLOGI) &&
        ((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;
}

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;
    /*
     * The MBX_READ_STATUS returns tx_k_bytes which has to
     * converted to words
     */
    hs->tx_words = (uint64_t)
            ((uint64_t)pmb->un.varRdStatus.xmitByteCnt
            * (uint64_t)256);
    hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
    hs->rx_words = (uint64_t)
            ((uint64_t)pmb->un.varRdStatus.rcvByteCnt
             * (uint64_t)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;
}

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.
 */

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;
}

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;
}

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;
}

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;
}

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;
}

#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)

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);
}

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,
};

void
lpfc_get_cfgparam(struct lpfc_hba *phba)
{
    lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched);
    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_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
    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_fcp_io_channel_init(phba, lpfc_fcp_io_channel);
    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;
}

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;
}