root/drivers/scsi/bfa/bfad_attr.c
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
 * Copyright (c) 2014- QLogic Corporation.
 * All rights reserved
 * www.qlogic.com
 *
 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter.
 */

/*
 *  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_obj(union bfa_port_stats_u);
        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) {
                kfree(fcstats);
                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, set rport loss timeout.
 * Update dev_loss_tmo based on the value pushed down by the stack
 * In case it is lesser than path_tov of driver, set it to path_tov + 1
 * to ensure that the driver times out before the application
 */
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;
        uint16_t path_tov = bfa_fcpim_path_tov_get(&bfad->bfa);

        rport->dev_loss_tmo = timeout;
        if (timeout < path_tov)
                rport->dev_loss_tmo = path_tov + 1;
}

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;
}

static 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 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;
        }

        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;
}

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

        return sysfs_emit(buf, "%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 sysfs_emit(buf, "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);
        strscpy(symname, port_attr.port_cfg.sym_name.symname,
                        BFA_SYMNAME_MAXLEN);
        return sysfs_emit(buf, "%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 sysfs_emit(buf, "%s\n", hw_ver);
}

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

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_objs(struct bfa_rport_qualifier_s, nrports, GFP_ATOMIC);
        if (rports == NULL)
                return sysfs_emit(buf, "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 sysfs_emit(buf, "%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_STRING_ATTR_RO(driver_version, S_IRUGO,
                                BFAD_DRIVER_VERSION);
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_STRING_ATTR_RO(driver_name, S_IRUGO, BFAD_DRIVER_NAME);
static          DEVICE_ATTR(number_of_discovered_ports, S_IRUGO,
                                bfad_im_num_of_discovered_ports_show, NULL);

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

static const struct attribute_group bfad_im_host_attr_group = {
        .attrs = bfad_im_host_attrs
};

const struct attribute_group *bfad_im_host_groups[] = {
        &bfad_im_host_attr_group,
        NULL
};

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

static const struct attribute_group bfad_im_vport_attr_group = {
        .attrs = bfad_im_vport_attrs
};

const struct attribute_group *bfad_im_vport_groups[] = {
        &bfad_im_vport_attr_group,
        NULL
};