bfad_attr.c

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/*
 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 *
 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

/*
 *  bfa_attr.c Linux driver configuration interface module.
 */

#include "bfad_drv.h"
#include "bfad_im.h"

/*
 * FC transport template entry, get SCSI target port ID.
 */
static void
bfad_im_get_starget_port_id(struct scsi_target *starget)
{
    struct Scsi_Host *shost;
    struct bfad_im_port_s *im_port;
    struct bfad_s         *bfad;
    struct bfad_itnim_s   *itnim = NULL;
    u32        fc_id = -1;
    unsigned long   flags;

    shost = dev_to_shost(starget->dev.parent);
    im_port = (struct bfad_im_port_s *) shost->hostdata[0];
    bfad = im_port->bfad;
    spin_lock_irqsave(&bfad->bfad_lock, flags);

    itnim = bfad_get_itnim(im_port, starget->id);
    if (itnim)
        fc_id = bfa_fcs_itnim_get_fcid(&itnim->fcs_itnim);

    fc_starget_port_id(starget) = fc_id;
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);
}

/*
 * FC transport template entry, get SCSI target nwwn.
 */
static void
bfad_im_get_starget_node_name(struct scsi_target *starget)
{
    struct Scsi_Host *shost;
    struct bfad_im_port_s *im_port;
    struct bfad_s         *bfad;
    struct bfad_itnim_s   *itnim = NULL;
    u64             node_name = 0;
    unsigned long   flags;

    shost = dev_to_shost(starget->dev.parent);
    im_port = (struct bfad_im_port_s *) shost->hostdata[0];
    bfad = im_port->bfad;
    spin_lock_irqsave(&bfad->bfad_lock, flags);

    itnim = bfad_get_itnim(im_port, starget->id);
    if (itnim)
        node_name = bfa_fcs_itnim_get_nwwn(&itnim->fcs_itnim);

    fc_starget_node_name(starget) = cpu_to_be64(node_name);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);
}

/*
 * FC transport template entry, get SCSI target pwwn.
 */
static void
bfad_im_get_starget_port_name(struct scsi_target *starget)
{
    struct Scsi_Host *shost;
    struct bfad_im_port_s *im_port;
    struct bfad_s         *bfad;
    struct bfad_itnim_s   *itnim = NULL;
    u64             port_name = 0;
    unsigned long   flags;

    shost = dev_to_shost(starget->dev.parent);
    im_port = (struct bfad_im_port_s *) shost->hostdata[0];
    bfad = im_port->bfad;
    spin_lock_irqsave(&bfad->bfad_lock, flags);

    itnim = bfad_get_itnim(im_port, starget->id);
    if (itnim)
        port_name = bfa_fcs_itnim_get_pwwn(&itnim->fcs_itnim);

    fc_starget_port_name(starget) = cpu_to_be64(port_name);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);
}

/*
 * FC transport template entry, get SCSI host port ID.
 */
static void
bfad_im_get_host_port_id(struct Scsi_Host *shost)
{
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_port_s    *port = im_port->port;

    fc_host_port_id(shost) =
            bfa_hton3b(bfa_fcs_lport_get_fcid(port->fcs_port));
}

/*
 * FC transport template entry, get SCSI host port type.
 */
static void
bfad_im_get_host_port_type(struct Scsi_Host *shost)
{
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s         *bfad = im_port->bfad;
    struct bfa_lport_attr_s port_attr;

    bfa_fcs_lport_get_attr(&bfad->bfa_fcs.fabric.bport, &port_attr);

    switch (port_attr.port_type) {
    case BFA_PORT_TYPE_NPORT:
        fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
        break;
    case BFA_PORT_TYPE_NLPORT:
        fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
        break;
    case BFA_PORT_TYPE_P2P:
        fc_host_port_type(shost) = FC_PORTTYPE_PTP;
        break;
    case BFA_PORT_TYPE_LPORT:
        fc_host_port_type(shost) = FC_PORTTYPE_LPORT;
        break;
    default:
        fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
        break;
    }
}

/*
 * FC transport template entry, get SCSI host port state.
 */
static void
bfad_im_get_host_port_state(struct Scsi_Host *shost)
{
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s         *bfad = im_port->bfad;
    struct bfa_port_attr_s attr;

    bfa_fcport_get_attr(&bfad->bfa, &attr);

    switch (attr.port_state) {
    case BFA_PORT_ST_LINKDOWN:
        fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN;
        break;
    case BFA_PORT_ST_LINKUP:
        fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
        break;
    case BFA_PORT_ST_DISABLED:
    case BFA_PORT_ST_STOPPED:
    case BFA_PORT_ST_IOCDOWN:
    case BFA_PORT_ST_IOCDIS:
        fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
        break;
    case BFA_PORT_ST_UNINIT:
    case BFA_PORT_ST_ENABLING_QWAIT:
    case BFA_PORT_ST_ENABLING:
    case BFA_PORT_ST_DISABLING_QWAIT:
    case BFA_PORT_ST_DISABLING:
    default:
        fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN;
        break;
    }
}

/*
 * FC transport template entry, get SCSI host active fc4s.
 */
static void
bfad_im_get_host_active_fc4s(struct Scsi_Host *shost)
{
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_port_s    *port = im_port->port;

    memset(fc_host_active_fc4s(shost), 0,
           sizeof(fc_host_active_fc4s(shost)));

    if (port->supported_fc4s & BFA_LPORT_ROLE_FCP_IM)
        fc_host_active_fc4s(shost)[2] = 1;

    fc_host_active_fc4s(shost)[7] = 1;
}

/*
 * FC transport template entry, get SCSI host link speed.
 */
static void
bfad_im_get_host_speed(struct Scsi_Host *shost)
{
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s         *bfad = im_port->bfad;
    struct bfa_port_attr_s attr;

    bfa_fcport_get_attr(&bfad->bfa, &attr);
    switch (attr.speed) {
    case BFA_PORT_SPEED_10GBPS:
        fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
        break;
    case BFA_PORT_SPEED_16GBPS:
        fc_host_speed(shost) = FC_PORTSPEED_16GBIT;
        break;
    case BFA_PORT_SPEED_8GBPS:
        fc_host_speed(shost) = FC_PORTSPEED_8GBIT;
        break;
    case BFA_PORT_SPEED_4GBPS:
        fc_host_speed(shost) = FC_PORTSPEED_4GBIT;
        break;
    case BFA_PORT_SPEED_2GBPS:
        fc_host_speed(shost) = FC_PORTSPEED_2GBIT;
        break;
    case BFA_PORT_SPEED_1GBPS:
        fc_host_speed(shost) = FC_PORTSPEED_1GBIT;
        break;
    default:
        fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
        break;
    }
}

/*
 * FC transport template entry, get SCSI host port type.
 */
static void
bfad_im_get_host_fabric_name(struct Scsi_Host *shost)
{
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_port_s    *port = im_port->port;
    wwn_t           fabric_nwwn = 0;

    fabric_nwwn = bfa_fcs_lport_get_fabric_name(port->fcs_port);

    fc_host_fabric_name(shost) = cpu_to_be64(fabric_nwwn);

}

/*
 * FC transport template entry, get BFAD statistics.
 */
static struct fc_host_statistics *
bfad_im_get_stats(struct Scsi_Host *shost)
{
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s         *bfad = im_port->bfad;
    struct bfad_hal_comp fcomp;
    union bfa_port_stats_u *fcstats;
    struct fc_host_statistics *hstats;
    bfa_status_t    rc;
    unsigned long   flags;

    fcstats = kzalloc(sizeof(union bfa_port_stats_u), GFP_KERNEL);
    if (fcstats == NULL)
        return NULL;

    hstats = &bfad->link_stats;
    init_completion(&fcomp.comp);
    spin_lock_irqsave(&bfad->bfad_lock, flags);
    memset(hstats, 0, sizeof(struct fc_host_statistics));
    rc = bfa_port_get_stats(BFA_FCPORT(&bfad->bfa),
                fcstats, bfad_hcb_comp, &fcomp);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);
    if (rc != BFA_STATUS_OK)
        return NULL;

    wait_for_completion(&fcomp.comp);

    /* Fill the fc_host_statistics structure */
    hstats->seconds_since_last_reset = fcstats->fc.secs_reset;
    hstats->tx_frames = fcstats->fc.tx_frames;
    hstats->tx_words  = fcstats->fc.tx_words;
    hstats->rx_frames = fcstats->fc.rx_frames;
    hstats->rx_words  = fcstats->fc.rx_words;
    hstats->lip_count = fcstats->fc.lip_count;
    hstats->nos_count = fcstats->fc.nos_count;
    hstats->error_frames = fcstats->fc.error_frames;
    hstats->dumped_frames = fcstats->fc.dropped_frames;
    hstats->link_failure_count = fcstats->fc.link_failures;
    hstats->loss_of_sync_count = fcstats->fc.loss_of_syncs;
    hstats->loss_of_signal_count = fcstats->fc.loss_of_signals;
    hstats->prim_seq_protocol_err_count = fcstats->fc.primseq_errs;
    hstats->invalid_crc_count = fcstats->fc.invalid_crcs;

    kfree(fcstats);
    return hstats;
}

/*
 * FC transport template entry, reset BFAD statistics.
 */
static void
bfad_im_reset_stats(struct Scsi_Host *shost)
{
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s         *bfad = im_port->bfad;
    struct bfad_hal_comp fcomp;
    unsigned long   flags;
    bfa_status_t    rc;

    init_completion(&fcomp.comp);
    spin_lock_irqsave(&bfad->bfad_lock, flags);
    rc = bfa_port_clear_stats(BFA_FCPORT(&bfad->bfa), bfad_hcb_comp,
                    &fcomp);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);

    if (rc != BFA_STATUS_OK)
        return;

    wait_for_completion(&fcomp.comp);

    return;
}

/*
 * FC transport template entry, get rport loss timeout.
 */
static void
bfad_im_get_rport_loss_tmo(struct fc_rport *rport)
{
    struct bfad_itnim_data_s *itnim_data = rport->dd_data;
    struct bfad_itnim_s   *itnim = itnim_data->itnim;
    struct bfad_s         *bfad = itnim->im->bfad;
    unsigned long   flags;

    spin_lock_irqsave(&bfad->bfad_lock, flags);
    rport->dev_loss_tmo = bfa_fcpim_path_tov_get(&bfad->bfa);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);
}

/*
 * FC transport template entry, set rport loss timeout.
 */
static void
bfad_im_set_rport_loss_tmo(struct fc_rport *rport, u32 timeout)
{
    struct bfad_itnim_data_s *itnim_data = rport->dd_data;
    struct bfad_itnim_s   *itnim = itnim_data->itnim;
    struct bfad_s         *bfad = itnim->im->bfad;
    unsigned long   flags;

    if (timeout > 0) {
        spin_lock_irqsave(&bfad->bfad_lock, flags);
        bfa_fcpim_path_tov_set(&bfad->bfa, timeout);
        rport->dev_loss_tmo = bfa_fcpim_path_tov_get(&bfad->bfa);
        spin_unlock_irqrestore(&bfad->bfad_lock, flags);
    }

}

static int
bfad_im_vport_create(struct fc_vport *fc_vport, bool disable)
{
    char *vname = fc_vport->symbolic_name;
    struct Scsi_Host *shost = fc_vport->shost;
    struct bfad_im_port_s *im_port =
        (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s *bfad = im_port->bfad;
    struct bfa_lport_cfg_s port_cfg;
    struct bfad_vport_s *vp;
    int status = 0, rc;
    unsigned long flags;

    memset(&port_cfg, 0, sizeof(port_cfg));
    u64_to_wwn(fc_vport->node_name, (u8 *)&port_cfg.nwwn);
    u64_to_wwn(fc_vport->port_name, (u8 *)&port_cfg.pwwn);
    if (strlen(vname) > 0)
        strcpy((char *)&port_cfg.sym_name, vname);
    port_cfg.roles = BFA_LPORT_ROLE_FCP_IM;

    spin_lock_irqsave(&bfad->bfad_lock, flags);
    list_for_each_entry(vp, &bfad->pbc_vport_list, list_entry) {
        if (port_cfg.pwwn ==
                vp->fcs_vport.lport.port_cfg.pwwn) {
            port_cfg.preboot_vp =
                vp->fcs_vport.lport.port_cfg.preboot_vp;
            break;
        }
    }
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);

    rc = bfad_vport_create(bfad, 0, &port_cfg, &fc_vport->dev);
    if (rc == BFA_STATUS_OK) {
        struct bfad_vport_s *vport;
        struct bfa_fcs_vport_s *fcs_vport;
        struct Scsi_Host *vshost;

        spin_lock_irqsave(&bfad->bfad_lock, flags);
        fcs_vport = bfa_fcs_vport_lookup(&bfad->bfa_fcs, 0,
                    port_cfg.pwwn);
        spin_unlock_irqrestore(&bfad->bfad_lock, flags);
        if (fcs_vport == NULL)
            return VPCERR_BAD_WWN;

        fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
        if (disable) {
            spin_lock_irqsave(&bfad->bfad_lock, flags);
            bfa_fcs_vport_stop(fcs_vport);
            spin_unlock_irqrestore(&bfad->bfad_lock, flags);
            fc_vport_set_state(fc_vport, FC_VPORT_DISABLED);
        }

        vport = fcs_vport->vport_drv;
        vshost = vport->drv_port.im_port->shost;
        fc_host_node_name(vshost) = wwn_to_u64((u8 *)&port_cfg.nwwn);
        fc_host_port_name(vshost) = wwn_to_u64((u8 *)&port_cfg.pwwn);
        fc_host_supported_classes(vshost) = FC_COS_CLASS3;

        memset(fc_host_supported_fc4s(vshost), 0,
            sizeof(fc_host_supported_fc4s(vshost)));

        /* For FCP type 0x08 */
        if (supported_fc4s & BFA_LPORT_ROLE_FCP_IM)
            fc_host_supported_fc4s(vshost)[2] = 1;

        /* For fibre channel services type 0x20 */
        fc_host_supported_fc4s(vshost)[7] = 1;

        fc_host_supported_speeds(vshost) =
                bfad_im_supported_speeds(&bfad->bfa);
        fc_host_maxframe_size(vshost) =
                bfa_fcport_get_maxfrsize(&bfad->bfa);

        fc_vport->dd_data = vport;
        vport->drv_port.im_port->fc_vport = fc_vport;
    } else if (rc == BFA_STATUS_INVALID_WWN)
        return VPCERR_BAD_WWN;
    else if (rc == BFA_STATUS_VPORT_EXISTS)
        return VPCERR_BAD_WWN;
    else if (rc == BFA_STATUS_VPORT_MAX)
        return VPCERR_NO_FABRIC_SUPP;
    else if (rc == BFA_STATUS_VPORT_WWN_BP)
        return VPCERR_BAD_WWN;
    else
        return FC_VPORT_FAILED;

    return status;
}

int
bfad_im_issue_fc_host_lip(struct Scsi_Host *shost)
{
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s *bfad = im_port->bfad;
    struct bfad_hal_comp fcomp;
    unsigned long flags;
    uint32_t status;

    init_completion(&fcomp.comp);
    spin_lock_irqsave(&bfad->bfad_lock, flags);
    status = bfa_port_disable(&bfad->bfa.modules.port,
                    bfad_hcb_comp, &fcomp);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);

    if (status != BFA_STATUS_OK)
        return -EIO;

    wait_for_completion(&fcomp.comp);
    if (fcomp.status != BFA_STATUS_OK)
        return -EIO;

    spin_lock_irqsave(&bfad->bfad_lock, flags);
    status = bfa_port_enable(&bfad->bfa.modules.port,
                    bfad_hcb_comp, &fcomp);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);
    if (status != BFA_STATUS_OK)
        return -EIO;

    wait_for_completion(&fcomp.comp);
    if (fcomp.status != BFA_STATUS_OK)
        return -EIO;

    return 0;
}

static int
bfad_im_vport_delete(struct fc_vport *fc_vport)
{
    struct bfad_vport_s *vport = (struct bfad_vport_s *)fc_vport->dd_data;
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) vport->drv_port.im_port;
    struct bfad_s *bfad = im_port->bfad;
    struct bfad_port_s *port;
    struct bfa_fcs_vport_s *fcs_vport;
    struct Scsi_Host *vshost;
    wwn_t   pwwn;
    int rc;
    unsigned long flags;
    struct completion fcomp;

    if (im_port->flags & BFAD_PORT_DELETE) {
        bfad_scsi_host_free(bfad, im_port);
        list_del(&vport->list_entry);
        kfree(vport);
        return 0;
    }

    port = im_port->port;

    vshost = vport->drv_port.im_port->shost;
    u64_to_wwn(fc_host_port_name(vshost), (u8 *)&pwwn);

    spin_lock_irqsave(&bfad->bfad_lock, flags);
    fcs_vport = bfa_fcs_vport_lookup(&bfad->bfa_fcs, 0, pwwn);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);

    if (fcs_vport == NULL)
        return VPCERR_BAD_WWN;

    vport->drv_port.flags |= BFAD_PORT_DELETE;

    vport->comp_del = &fcomp;
    init_completion(vport->comp_del);

    spin_lock_irqsave(&bfad->bfad_lock, flags);
    rc = bfa_fcs_vport_delete(&vport->fcs_vport);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);

    if (rc == BFA_STATUS_PBC) {
        vport->drv_port.flags &= ~BFAD_PORT_DELETE;
        vport->comp_del = NULL;
        return -1;
    }

    wait_for_completion(vport->comp_del);

    bfad_scsi_host_free(bfad, im_port);
    list_del(&vport->list_entry);
    kfree(vport);

    return 0;
}

static int
bfad_im_vport_disable(struct fc_vport *fc_vport, bool disable)
{
    struct bfad_vport_s *vport;
    struct bfad_s *bfad;
    struct bfa_fcs_vport_s *fcs_vport;
    struct Scsi_Host *vshost;
    wwn_t   pwwn;
    unsigned long flags;

    vport = (struct bfad_vport_s *)fc_vport->dd_data;
    bfad = vport->drv_port.bfad;
    vshost = vport->drv_port.im_port->shost;
    u64_to_wwn(fc_host_port_name(vshost), (u8 *)&pwwn);

    spin_lock_irqsave(&bfad->bfad_lock, flags);
    fcs_vport = bfa_fcs_vport_lookup(&bfad->bfa_fcs, 0, pwwn);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);

    if (fcs_vport == NULL)
        return VPCERR_BAD_WWN;

    if (disable) {
        bfa_fcs_vport_stop(fcs_vport);
        fc_vport_set_state(fc_vport, FC_VPORT_DISABLED);
    } else {
        bfa_fcs_vport_start(fcs_vport);
        fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE);
    }

    return 0;
}

void
bfad_im_vport_set_symbolic_name(struct fc_vport *fc_vport)
{
    struct bfad_vport_s *vport = (struct bfad_vport_s *)fc_vport->dd_data;
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *)vport->drv_port.im_port;
    struct bfad_s *bfad = im_port->bfad;
    struct Scsi_Host *vshost = vport->drv_port.im_port->shost;
    char *sym_name = fc_vport->symbolic_name;
    struct bfa_fcs_vport_s *fcs_vport;
    wwn_t   pwwn;
    unsigned long flags;

    u64_to_wwn(fc_host_port_name(vshost), (u8 *)&pwwn);

    spin_lock_irqsave(&bfad->bfad_lock, flags);
    fcs_vport = bfa_fcs_vport_lookup(&bfad->bfa_fcs, 0, pwwn);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);

    if (fcs_vport == NULL)
        return;

    spin_lock_irqsave(&bfad->bfad_lock, flags);
    if (strlen(sym_name) > 0) {
        strcpy(fcs_vport->lport.port_cfg.sym_name.symname, sym_name);
        bfa_fcs_lport_ns_util_send_rspn_id(
            BFA_FCS_GET_NS_FROM_PORT((&fcs_vport->lport)), NULL);
    }
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);
}

struct fc_function_template bfad_im_fc_function_template = {

    /* Target dynamic attributes */
    .get_starget_port_id = bfad_im_get_starget_port_id,
    .show_starget_port_id = 1,
    .get_starget_node_name = bfad_im_get_starget_node_name,
    .show_starget_node_name = 1,
    .get_starget_port_name = bfad_im_get_starget_port_name,
    .show_starget_port_name = 1,

    /* Host dynamic attribute */
    .get_host_port_id = bfad_im_get_host_port_id,
    .show_host_port_id = 1,

    /* Host fixed attributes */
    .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,

    /* More host dynamic attributes */
    .show_host_port_type = 1,
    .get_host_port_type = bfad_im_get_host_port_type,
    .show_host_port_state = 1,
    .get_host_port_state = bfad_im_get_host_port_state,
    .show_host_active_fc4s = 1,
    .get_host_active_fc4s = bfad_im_get_host_active_fc4s,
    .show_host_speed = 1,
    .get_host_speed = bfad_im_get_host_speed,
    .show_host_fabric_name = 1,
    .get_host_fabric_name = bfad_im_get_host_fabric_name,

    .show_host_symbolic_name = 1,

    /* Statistics */
    .get_fc_host_stats = bfad_im_get_stats,
    .reset_fc_host_stats = bfad_im_reset_stats,

    /* Allocation length for host specific data */
    .dd_fcrport_size = sizeof(struct bfad_itnim_data_s *),

    /* Remote port fixed attributes */
    .show_rport_maxframe_size = 1,
    .show_rport_supported_classes = 1,
    .show_rport_dev_loss_tmo = 1,
    .get_rport_dev_loss_tmo = bfad_im_get_rport_loss_tmo,
    .set_rport_dev_loss_tmo = bfad_im_set_rport_loss_tmo,
    .issue_fc_host_lip = bfad_im_issue_fc_host_lip,
    .vport_create = bfad_im_vport_create,
    .vport_delete = bfad_im_vport_delete,
    .vport_disable = bfad_im_vport_disable,
    .set_vport_symbolic_name = bfad_im_vport_set_symbolic_name,
    .bsg_request = bfad_im_bsg_request,
    .bsg_timeout = bfad_im_bsg_timeout,
};

struct fc_function_template bfad_im_vport_fc_function_template = {

    /* Target dynamic attributes */
    .get_starget_port_id = bfad_im_get_starget_port_id,
    .show_starget_port_id = 1,
    .get_starget_node_name = bfad_im_get_starget_node_name,
    .show_starget_node_name = 1,
    .get_starget_port_name = bfad_im_get_starget_port_name,
    .show_starget_port_name = 1,

    /* Host dynamic attribute */
    .get_host_port_id = bfad_im_get_host_port_id,
    .show_host_port_id = 1,

    /* Host fixed attributes */
    .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,

    /* More host dynamic attributes */
    .show_host_port_type = 1,
    .get_host_port_type = bfad_im_get_host_port_type,
    .show_host_port_state = 1,
    .get_host_port_state = bfad_im_get_host_port_state,
    .show_host_active_fc4s = 1,
    .get_host_active_fc4s = bfad_im_get_host_active_fc4s,
    .show_host_speed = 1,
    .get_host_speed = bfad_im_get_host_speed,
    .show_host_fabric_name = 1,
    .get_host_fabric_name = bfad_im_get_host_fabric_name,

    .show_host_symbolic_name = 1,

    /* Statistics */
    .get_fc_host_stats = bfad_im_get_stats,
    .reset_fc_host_stats = bfad_im_reset_stats,

    /* Allocation length for host specific data */
    .dd_fcrport_size = sizeof(struct bfad_itnim_data_s *),

    /* Remote port fixed attributes */
    .show_rport_maxframe_size = 1,
    .show_rport_supported_classes = 1,
    .show_rport_dev_loss_tmo = 1,
    .get_rport_dev_loss_tmo = bfad_im_get_rport_loss_tmo,
    .set_rport_dev_loss_tmo = bfad_im_set_rport_loss_tmo,
};

/*
 *  Scsi_Host_attrs SCSI host attributes
 */
static ssize_t
bfad_im_serial_num_show(struct device *dev, struct device_attribute *attr,
             char *buf)
{
    struct Scsi_Host *shost = class_to_shost(dev);
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s *bfad = im_port->bfad;
    char serial_num[BFA_ADAPTER_SERIAL_NUM_LEN];

    bfa_get_adapter_serial_num(&bfad->bfa, serial_num);
    return snprintf(buf, PAGE_SIZE, "%s\n", serial_num);
}

static ssize_t
bfad_im_model_show(struct device *dev, struct device_attribute *attr,
            char *buf)
{
    struct Scsi_Host *shost = class_to_shost(dev);
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s *bfad = im_port->bfad;
    char model[BFA_ADAPTER_MODEL_NAME_LEN];

    bfa_get_adapter_model(&bfad->bfa, model);
    return snprintf(buf, PAGE_SIZE, "%s\n", model);
}

static ssize_t
bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr,
                 char *buf)
{
    struct Scsi_Host *shost = class_to_shost(dev);
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s *bfad = im_port->bfad;
    char model[BFA_ADAPTER_MODEL_NAME_LEN];
    char model_descr[BFA_ADAPTER_MODEL_DESCR_LEN];
    int nports = 0;

    bfa_get_adapter_model(&bfad->bfa, model);
    nports = bfa_get_nports(&bfad->bfa);
    if (!strcmp(model, "Brocade-425"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 4Gbps PCIe dual port FC HBA");
    else if (!strcmp(model, "Brocade-825"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 8Gbps PCIe dual port FC HBA");
    else if (!strcmp(model, "Brocade-42B"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 4Gbps PCIe dual port FC HBA for HP");
    else if (!strcmp(model, "Brocade-82B"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 8Gbps PCIe dual port FC HBA for HP");
    else if (!strcmp(model, "Brocade-1010"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 10Gbps single port CNA");
    else if (!strcmp(model, "Brocade-1020"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 10Gbps dual port CNA");
    else if (!strcmp(model, "Brocade-1007"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 10Gbps CNA for IBM Blade Center");
    else if (!strcmp(model, "Brocade-415"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 4Gbps PCIe single port FC HBA");
    else if (!strcmp(model, "Brocade-815"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 8Gbps PCIe single port FC HBA");
    else if (!strcmp(model, "Brocade-41B"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 4Gbps PCIe single port FC HBA for HP");
    else if (!strcmp(model, "Brocade-81B"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 8Gbps PCIe single port FC HBA for HP");
    else if (!strcmp(model, "Brocade-804"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 8Gbps FC HBA for HP Bladesystem C-class");
    else if (!strcmp(model, "Brocade-1741"))
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Brocade 10Gbps CNA for Dell M-Series Blade Servers");
    else if (strstr(model, "Brocade-1860")) {
        if (nports == 1 && bfa_ioc_is_cna(&bfad->bfa.ioc))
            snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
                "Brocade 10Gbps single port CNA");
        else if (nports == 1 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
            snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
                "Brocade 16Gbps PCIe single port FC HBA");
        else if (nports == 2 && bfa_ioc_is_cna(&bfad->bfa.ioc))
            snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
                "Brocade 10Gbps dual port CNA");
        else if (nports == 2 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
            snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
                "Brocade 16Gbps PCIe dual port FC HBA");
    } else if (!strcmp(model, "Brocade-1867")) {
        if (nports == 1 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
            snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
                "Brocade 16Gbps PCIe single port FC HBA for IBM");
        else if (nports == 2 && !bfa_ioc_is_cna(&bfad->bfa.ioc))
            snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
                "Brocade 16Gbps PCIe dual port FC HBA for IBM");
    } else
        snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN,
            "Invalid Model");

    return snprintf(buf, PAGE_SIZE, "%s\n", model_descr);
}

static ssize_t
bfad_im_node_name_show(struct device *dev, struct device_attribute *attr,
                 char *buf)
{
    struct Scsi_Host *shost = class_to_shost(dev);
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_port_s    *port = im_port->port;
    u64        nwwn;

    nwwn = bfa_fcs_lport_get_nwwn(port->fcs_port);
    return snprintf(buf, PAGE_SIZE, "0x%llx\n", cpu_to_be64(nwwn));
}

static ssize_t
bfad_im_symbolic_name_show(struct device *dev, struct device_attribute *attr,
                 char *buf)
{
    struct Scsi_Host *shost = class_to_shost(dev);
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s *bfad = im_port->bfad;
    struct bfa_lport_attr_s port_attr;
    char symname[BFA_SYMNAME_MAXLEN];

    bfa_fcs_lport_get_attr(&bfad->bfa_fcs.fabric.bport, &port_attr);
    strncpy(symname, port_attr.port_cfg.sym_name.symname,
            BFA_SYMNAME_MAXLEN);
    return snprintf(buf, PAGE_SIZE, "%s\n", symname);
}

static ssize_t
bfad_im_hw_version_show(struct device *dev, struct device_attribute *attr,
                char *buf)
{
    struct Scsi_Host *shost = class_to_shost(dev);
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s *bfad = im_port->bfad;
    char hw_ver[BFA_VERSION_LEN];

    bfa_get_pci_chip_rev(&bfad->bfa, hw_ver);
    return snprintf(buf, PAGE_SIZE, "%s\n", hw_ver);
}

static ssize_t
bfad_im_drv_version_show(struct device *dev, struct device_attribute *attr,
                char *buf)
{
    return snprintf(buf, PAGE_SIZE, "%s\n", BFAD_DRIVER_VERSION);
}

static ssize_t
bfad_im_optionrom_version_show(struct device *dev,
             struct device_attribute *attr, char *buf)
{
    struct Scsi_Host *shost = class_to_shost(dev);
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s *bfad = im_port->bfad;
    char optrom_ver[BFA_VERSION_LEN];

    bfa_get_adapter_optrom_ver(&bfad->bfa, optrom_ver);
    return snprintf(buf, PAGE_SIZE, "%s\n", optrom_ver);
}

static ssize_t
bfad_im_fw_version_show(struct device *dev, struct device_attribute *attr,
                 char *buf)
{
    struct Scsi_Host *shost = class_to_shost(dev);
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s *bfad = im_port->bfad;
    char fw_ver[BFA_VERSION_LEN];

    bfa_get_adapter_fw_ver(&bfad->bfa, fw_ver);
    return snprintf(buf, PAGE_SIZE, "%s\n", fw_ver);
}

static ssize_t
bfad_im_num_of_ports_show(struct device *dev, struct device_attribute *attr,
                char *buf)
{
    struct Scsi_Host *shost = class_to_shost(dev);
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_s *bfad = im_port->bfad;

    return snprintf(buf, PAGE_SIZE, "%d\n",
            bfa_get_nports(&bfad->bfa));
}

static ssize_t
bfad_im_drv_name_show(struct device *dev, struct device_attribute *attr,
                char *buf)
{
    return snprintf(buf, PAGE_SIZE, "%s\n", BFAD_DRIVER_NAME);
}

static ssize_t
bfad_im_num_of_discovered_ports_show(struct device *dev,
            struct device_attribute *attr, char *buf)
{
    struct Scsi_Host *shost = class_to_shost(dev);
    struct bfad_im_port_s *im_port =
            (struct bfad_im_port_s *) shost->hostdata[0];
    struct bfad_port_s    *port = im_port->port;
    struct bfad_s         *bfad = im_port->bfad;
    int        nrports = 2048;
    struct bfa_rport_qualifier_s *rports = NULL;
    unsigned long   flags;

    rports = kzalloc(sizeof(struct bfa_rport_qualifier_s) * nrports,
             GFP_ATOMIC);
    if (rports == NULL)
        return snprintf(buf, PAGE_SIZE, "Failed\n");

    spin_lock_irqsave(&bfad->bfad_lock, flags);
    bfa_fcs_lport_get_rport_quals(port->fcs_port, rports, &nrports);
    spin_unlock_irqrestore(&bfad->bfad_lock, flags);
    kfree(rports);

    return snprintf(buf, PAGE_SIZE, "%d\n", nrports);
}

static          DEVICE_ATTR(serial_number, S_IRUGO,
                bfad_im_serial_num_show, NULL);
static          DEVICE_ATTR(model, S_IRUGO, bfad_im_model_show, NULL);
static          DEVICE_ATTR(model_description, S_IRUGO,
                bfad_im_model_desc_show, NULL);
static          DEVICE_ATTR(node_name, S_IRUGO, bfad_im_node_name_show, NULL);
static          DEVICE_ATTR(symbolic_name, S_IRUGO,
                bfad_im_symbolic_name_show, NULL);
static          DEVICE_ATTR(hardware_version, S_IRUGO,
                bfad_im_hw_version_show, NULL);
static          DEVICE_ATTR(driver_version, S_IRUGO,
                bfad_im_drv_version_show, NULL);
static          DEVICE_ATTR(option_rom_version, S_IRUGO,
                bfad_im_optionrom_version_show, NULL);
static          DEVICE_ATTR(firmware_version, S_IRUGO,
                bfad_im_fw_version_show, NULL);
static          DEVICE_ATTR(number_of_ports, S_IRUGO,
                bfad_im_num_of_ports_show, NULL);
static          DEVICE_ATTR(driver_name, S_IRUGO, bfad_im_drv_name_show, NULL);
static          DEVICE_ATTR(number_of_discovered_ports, S_IRUGO,
                bfad_im_num_of_discovered_ports_show, NULL);

struct device_attribute *bfad_im_host_attrs[] = {
    &dev_attr_serial_number,
    &dev_attr_model,
    &dev_attr_model_description,
    &dev_attr_node_name,
    &dev_attr_symbolic_name,
    &dev_attr_hardware_version,
    &dev_attr_driver_version,
    &dev_attr_option_rom_version,
    &dev_attr_firmware_version,
    &dev_attr_number_of_ports,
    &dev_attr_driver_name,
    &dev_attr_number_of_discovered_ports,
    NULL,
};

struct device_attribute *bfad_im_vport_attrs[] = {
    &dev_attr_serial_number,
    &dev_attr_model,
    &dev_attr_model_description,
    &dev_attr_node_name,
    &dev_attr_symbolic_name,
    &dev_attr_hardware_version,
    &dev_attr_driver_version,
    &dev_attr_option_rom_version,
    &dev_attr_firmware_version,
    &dev_attr_number_of_ports,
    &dev_attr_driver_name,
    &dev_attr_number_of_discovered_ports,
    NULL,
};