/*
 * Linux network driver for Brocade Converged Network 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.
 */
/*
 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 */

#include "bfa_ioc.h"
#include "cna.h"
#include "bfi.h"
#include "bfi_ctreg.h"
#include "bfa_defs.h"

/**
 * IOC local definitions
 */

/**
 * Asic specific macros : see bfa_hw_cb.c and bfa_hw_ct.c for details.
 */

#define bfa_ioc_firmware_lock(__ioc)                    \
                        ((__ioc)->ioc_hwif->ioc_firmware_lock(__ioc))
#define bfa_ioc_firmware_unlock(__ioc)                  \
                        ((__ioc)->ioc_hwif->ioc_firmware_unlock(__ioc))
#define bfa_ioc_reg_init(__ioc) ((__ioc)->ioc_hwif->ioc_reg_init(__ioc))
#define bfa_ioc_map_port(__ioc) ((__ioc)->ioc_hwif->ioc_map_port(__ioc))
#define bfa_ioc_notify_fail(__ioc)                      \
                        ((__ioc)->ioc_hwif->ioc_notify_fail(__ioc))
#define bfa_ioc_sync_start(__ioc)               \
                        ((__ioc)->ioc_hwif->ioc_sync_start(__ioc))
#define bfa_ioc_sync_join(__ioc)                        \
                        ((__ioc)->ioc_hwif->ioc_sync_join(__ioc))
#define bfa_ioc_sync_leave(__ioc)                       \
                        ((__ioc)->ioc_hwif->ioc_sync_leave(__ioc))
#define bfa_ioc_sync_ack(__ioc)                         \
                        ((__ioc)->ioc_hwif->ioc_sync_ack(__ioc))
#define bfa_ioc_sync_complete(__ioc)                    \
                        ((__ioc)->ioc_hwif->ioc_sync_complete(__ioc))

#define bfa_ioc_mbox_cmd_pending(__ioc)         \
                        (!list_empty(&((__ioc)->mbox_mod.cmd_q)) || \
                        readl((__ioc)->ioc_regs.hfn_mbox_cmd))

static bool bfa_nw_auto_recover = true;

/*
 * forward declarations
 */
static void bfa_ioc_hw_sem_init(struct bfa_ioc *ioc);
static void bfa_ioc_hw_sem_get(struct bfa_ioc *ioc);
static void bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc);
static void bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force);
static void bfa_ioc_send_enable(struct bfa_ioc *ioc);
static void bfa_ioc_send_disable(struct bfa_ioc *ioc);
static void bfa_ioc_send_getattr(struct bfa_ioc *ioc);
static void bfa_ioc_hb_monitor(struct bfa_ioc *ioc);
static void bfa_ioc_hb_stop(struct bfa_ioc *ioc);
static void bfa_ioc_reset(struct bfa_ioc *ioc, bool force);
static void bfa_ioc_mbox_poll(struct bfa_ioc *ioc);
static void bfa_ioc_mbox_flush(struct bfa_ioc *ioc);
static void bfa_ioc_recover(struct bfa_ioc *ioc);
static void bfa_ioc_check_attr_wwns(struct bfa_ioc *ioc);
static void bfa_ioc_event_notify(struct bfa_ioc *, enum bfa_ioc_event);
static void bfa_ioc_disable_comp(struct bfa_ioc *ioc);
static void bfa_ioc_lpu_stop(struct bfa_ioc *ioc);
static void bfa_ioc_fail_notify(struct bfa_ioc *ioc);
static void bfa_ioc_pf_enabled(struct bfa_ioc *ioc);
static void bfa_ioc_pf_disabled(struct bfa_ioc *ioc);
static void bfa_ioc_pf_initfailed(struct bfa_ioc *ioc);
static void bfa_ioc_pf_failed(struct bfa_ioc *ioc);
static void bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc);
static void bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type,
                         u32 boot_param);
static u32 bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr);
static void bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc,
                                                char *serial_num);
static void bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc,
                                                char *fw_ver);
static void bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc,
                                                char *chip_rev);
static void bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc,
                                                char *optrom_ver);
static void bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc,
                                                char *manufacturer);
static void bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model);
static u64 bfa_ioc_get_pwwn(struct bfa_ioc *ioc);

/**
 * IOC state machine definitions/declarations
 */
enum ioc_event {
        IOC_E_RESET             = 1,    /*!< IOC reset request          */
        IOC_E_ENABLE            = 2,    /*!< IOC enable request         */
        IOC_E_DISABLE           = 3,    /*!< IOC disable request        */
        IOC_E_DETACH            = 4,    /*!< driver detach cleanup      */
        IOC_E_ENABLED           = 5,    /*!< f/w enabled                */
        IOC_E_FWRSP_GETATTR     = 6,    /*!< IOC get attribute response */
        IOC_E_DISABLED          = 7,    /*!< f/w disabled               */
        IOC_E_INITFAILED        = 8,    /*!< failure notice by iocpf sm */
        IOC_E_PFFAILED          = 9,    /*!< failure notice by iocpf sm */
        IOC_E_HBFAIL            = 10,   /*!< heartbeat failure          */
        IOC_E_HWERROR           = 11,   /*!< hardware error interrupt   */
        IOC_E_TIMEOUT           = 12,   /*!< timeout                    */
};

bfa_fsm_state_decl(bfa_ioc, uninit, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, reset, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, enabling, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, getattr, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, op, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, fail_retry, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, fail, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, disabling, struct bfa_ioc, enum ioc_event);
bfa_fsm_state_decl(bfa_ioc, disabled, struct bfa_ioc, enum ioc_event);

static struct bfa_sm_table ioc_sm_table[] = {
        {BFA_SM(bfa_ioc_sm_uninit), BFA_IOC_UNINIT},
        {BFA_SM(bfa_ioc_sm_reset), BFA_IOC_RESET},
        {BFA_SM(bfa_ioc_sm_enabling), BFA_IOC_ENABLING},
        {BFA_SM(bfa_ioc_sm_getattr), BFA_IOC_GETATTR},
        {BFA_SM(bfa_ioc_sm_op), BFA_IOC_OPERATIONAL},
        {BFA_SM(bfa_ioc_sm_fail_retry), BFA_IOC_INITFAIL},
        {BFA_SM(bfa_ioc_sm_fail), BFA_IOC_FAIL},
        {BFA_SM(bfa_ioc_sm_disabling), BFA_IOC_DISABLING},
        {BFA_SM(bfa_ioc_sm_disabled), BFA_IOC_DISABLED},
};

/**
 * IOCPF state machine definitions/declarations
 */

/*
 * Forward declareations for iocpf state machine
 */
static void bfa_iocpf_enable(struct bfa_ioc *ioc);
static void bfa_iocpf_disable(struct bfa_ioc *ioc);
static void bfa_iocpf_fail(struct bfa_ioc *ioc);
static void bfa_iocpf_initfail(struct bfa_ioc *ioc);
static void bfa_iocpf_getattrfail(struct bfa_ioc *ioc);
static void bfa_iocpf_stop(struct bfa_ioc *ioc);

/**
 * IOCPF state machine events
 */
enum iocpf_event {
        IOCPF_E_ENABLE          = 1,    /*!< IOCPF enable request       */
        IOCPF_E_DISABLE         = 2,    /*!< IOCPF disable request      */
        IOCPF_E_STOP            = 3,    /*!< stop on driver detach      */
        IOCPF_E_FWREADY         = 4,    /*!< f/w initialization done    */
        IOCPF_E_FWRSP_ENABLE    = 5,    /*!< enable f/w response        */
        IOCPF_E_FWRSP_DISABLE   = 6,    /*!< disable f/w response       */
        IOCPF_E_FAIL            = 7,    /*!< failure notice by ioc sm   */
        IOCPF_E_INITFAIL        = 8,    /*!< init fail notice by ioc sm */
        IOCPF_E_GETATTRFAIL     = 9,    /*!< init fail notice by ioc sm */
        IOCPF_E_SEMLOCKED       = 10,   /*!< h/w semaphore is locked    */
        IOCPF_E_TIMEOUT         = 11,   /*!< f/w response timeout       */
};

/**
 * IOCPF states
 */
enum bfa_iocpf_state {
        BFA_IOCPF_RESET         = 1,    /*!< IOC is in reset state */
        BFA_IOCPF_SEMWAIT       = 2,    /*!< Waiting for IOC h/w semaphore */
        BFA_IOCPF_HWINIT        = 3,    /*!< IOC h/w is being initialized */
        BFA_IOCPF_READY         = 4,    /*!< IOCPF is initialized */
        BFA_IOCPF_INITFAIL      = 5,    /*!< IOCPF failed */
        BFA_IOCPF_FAIL          = 6,    /*!< IOCPF failed */
        BFA_IOCPF_DISABLING     = 7,    /*!< IOCPF is being disabled */
        BFA_IOCPF_DISABLED      = 8,    /*!< IOCPF is disabled */
        BFA_IOCPF_FWMISMATCH    = 9,    /*!< IOC f/w different from drivers */
};

bfa_fsm_state_decl(bfa_iocpf, reset, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, fwcheck, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, mismatch, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, semwait, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, hwinit, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, enabling, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, ready, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, initfail_sync, struct bfa_iocpf,
                                                enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, initfail, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, fail_sync, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, fail, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, disabling, struct bfa_iocpf, enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, disabling_sync, struct bfa_iocpf,
                                                enum iocpf_event);
bfa_fsm_state_decl(bfa_iocpf, disabled, struct bfa_iocpf, enum iocpf_event);

static struct bfa_sm_table iocpf_sm_table[] = {
        {BFA_SM(bfa_iocpf_sm_reset), BFA_IOCPF_RESET},
        {BFA_SM(bfa_iocpf_sm_fwcheck), BFA_IOCPF_FWMISMATCH},
        {BFA_SM(bfa_iocpf_sm_mismatch), BFA_IOCPF_FWMISMATCH},
        {BFA_SM(bfa_iocpf_sm_semwait), BFA_IOCPF_SEMWAIT},
        {BFA_SM(bfa_iocpf_sm_hwinit), BFA_IOCPF_HWINIT},
        {BFA_SM(bfa_iocpf_sm_enabling), BFA_IOCPF_HWINIT},
        {BFA_SM(bfa_iocpf_sm_ready), BFA_IOCPF_READY},
        {BFA_SM(bfa_iocpf_sm_initfail_sync), BFA_IOCPF_INITFAIL},
        {BFA_SM(bfa_iocpf_sm_initfail), BFA_IOCPF_INITFAIL},
        {BFA_SM(bfa_iocpf_sm_fail_sync), BFA_IOCPF_FAIL},
        {BFA_SM(bfa_iocpf_sm_fail), BFA_IOCPF_FAIL},
        {BFA_SM(bfa_iocpf_sm_disabling), BFA_IOCPF_DISABLING},
        {BFA_SM(bfa_iocpf_sm_disabling_sync), BFA_IOCPF_DISABLING},
        {BFA_SM(bfa_iocpf_sm_disabled), BFA_IOCPF_DISABLED},
};

/**
 * IOC State Machine
 */

/**
 * Beginning state. IOC uninit state.
 */
static void
bfa_ioc_sm_uninit_entry(struct bfa_ioc *ioc)
{
}

/**
 * IOC is in uninit state.
 */
static void
bfa_ioc_sm_uninit(struct bfa_ioc *ioc, enum ioc_event event)
{
        switch (event) {
        case IOC_E_RESET:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_reset);
                break;

        default:
                bfa_sm_fault(event);
        }
}

/**
 * Reset entry actions -- initialize state machine
 */
static void
bfa_ioc_sm_reset_entry(struct bfa_ioc *ioc)
{
        bfa_fsm_set_state(&ioc->iocpf, bfa_iocpf_sm_reset);
}

/**
 * IOC is in reset state.
 */
static void
bfa_ioc_sm_reset(struct bfa_ioc *ioc, enum ioc_event event)
{
        switch (event) {
        case IOC_E_ENABLE:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
                break;

        case IOC_E_DISABLE:
                bfa_ioc_disable_comp(ioc);
                break;

        case IOC_E_DETACH:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_ioc_sm_enabling_entry(struct bfa_ioc *ioc)
{
        bfa_iocpf_enable(ioc);
}

/**
 * Host IOC function is being enabled, awaiting response from firmware.
 * Semaphore is acquired.
 */
static void
bfa_ioc_sm_enabling(struct bfa_ioc *ioc, enum ioc_event event)
{
        switch (event) {
        case IOC_E_ENABLED:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
                break;

        case IOC_E_PFFAILED:
                /* !!! fall through !!! */
        case IOC_E_HWERROR:
                ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
                bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
                if (event != IOC_E_PFFAILED)
                        bfa_iocpf_initfail(ioc);
                break;

        case IOC_E_DISABLE:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
                break;

        case IOC_E_DETACH:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
                bfa_iocpf_stop(ioc);
                break;

        case IOC_E_ENABLE:
                break;

        default:
                bfa_sm_fault(event);
        }
}

/**
 * Semaphore should be acquired for version check.
 */
static void
bfa_ioc_sm_getattr_entry(struct bfa_ioc *ioc)
{
        mod_timer(&ioc->ioc_timer, jiffies +
                msecs_to_jiffies(BFA_IOC_TOV));
        bfa_ioc_send_getattr(ioc);
}

/**
 * IOC configuration in progress. Timer is active.
 */
static void
bfa_ioc_sm_getattr(struct bfa_ioc *ioc, enum ioc_event event)
{
        switch (event) {
        case IOC_E_FWRSP_GETATTR:
                del_timer(&ioc->ioc_timer);
                bfa_ioc_check_attr_wwns(ioc);
                bfa_fsm_set_state(ioc, bfa_ioc_sm_op);
                break;

        case IOC_E_PFFAILED:
        case IOC_E_HWERROR:
                del_timer(&ioc->ioc_timer);
                /* fall through */
        case IOC_E_TIMEOUT:
                ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
                bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
                if (event != IOC_E_PFFAILED)
                        bfa_iocpf_getattrfail(ioc);
                break;

        case IOC_E_DISABLE:
                del_timer(&ioc->ioc_timer);
                bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
                break;

        case IOC_E_ENABLE:
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_ioc_sm_op_entry(struct bfa_ioc *ioc)
{
        ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_OK);
        bfa_ioc_hb_monitor(ioc);
}

static void
bfa_ioc_sm_op(struct bfa_ioc *ioc, enum ioc_event event)
{
        switch (event) {
        case IOC_E_ENABLE:
                break;

        case IOC_E_DISABLE:
                bfa_ioc_hb_stop(ioc);
                bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
                break;

        case IOC_E_PFFAILED:
        case IOC_E_HWERROR:
                bfa_ioc_hb_stop(ioc);
                /* !!! fall through !!! */
        case IOC_E_HBFAIL:
                bfa_ioc_fail_notify(ioc);
                if (ioc->iocpf.auto_recover)
                        bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
                else
                        bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);

                if (event != IOC_E_PFFAILED)
                        bfa_iocpf_fail(ioc);
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_ioc_sm_disabling_entry(struct bfa_ioc *ioc)
{
        bfa_iocpf_disable(ioc);
}

/**
 * IOC is being desabled
 */
static void
bfa_ioc_sm_disabling(struct bfa_ioc *ioc, enum ioc_event event)
{
        switch (event) {
        case IOC_E_DISABLED:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_disabled);
                break;

        case IOC_E_HWERROR:
                /*
                 * No state change.  Will move to disabled state
                 * after iocpf sm completes failure processing and
                 * moves to disabled state.
                 */
                bfa_iocpf_fail(ioc);
                break;

        default:
                bfa_sm_fault(event);
        }
}

/**
 * IOC desable completion entry.
 */
static void
bfa_ioc_sm_disabled_entry(struct bfa_ioc *ioc)
{
        bfa_ioc_disable_comp(ioc);
}

static void
bfa_ioc_sm_disabled(struct bfa_ioc *ioc, enum ioc_event event)
{
        switch (event) {
        case IOC_E_ENABLE:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
                break;

        case IOC_E_DISABLE:
                ioc->cbfn->disable_cbfn(ioc->bfa);
                break;

        case IOC_E_DETACH:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
                bfa_iocpf_stop(ioc);
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_ioc_sm_fail_retry_entry(struct bfa_ioc *ioc)
{
}

/**
 * Hardware initialization retry.
 */
static void
bfa_ioc_sm_fail_retry(struct bfa_ioc *ioc, enum ioc_event event)
{
        switch (event) {
        case IOC_E_ENABLED:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
                break;

        case IOC_E_PFFAILED:
        case IOC_E_HWERROR:
                /**
                 * Initialization retry failed.
                 */
                ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
                if (event != IOC_E_PFFAILED)
                        bfa_iocpf_initfail(ioc);
                break;

        case IOC_E_INITFAILED:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
                break;

        case IOC_E_ENABLE:
                break;

        case IOC_E_DISABLE:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
                break;

        case IOC_E_DETACH:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
                bfa_iocpf_stop(ioc);
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_ioc_sm_fail_entry(struct bfa_ioc *ioc)
{
}

/**
 * IOC failure.
 */
static void
bfa_ioc_sm_fail(struct bfa_ioc *ioc, enum ioc_event event)
{
        switch (event) {
        case IOC_E_ENABLE:
                ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
                break;

        case IOC_E_DISABLE:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
                break;

        case IOC_E_DETACH:
                bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
                bfa_iocpf_stop(ioc);
                break;

        case IOC_E_HWERROR:
                /* HB failure notification, ignore. */
                break;

        default:
                bfa_sm_fault(event);
        }
}

/**
 * IOCPF State Machine
 */

/**
 * Reset entry actions -- initialize state machine
 */
static void
bfa_iocpf_sm_reset_entry(struct bfa_iocpf *iocpf)
{
        iocpf->retry_count = 0;
        iocpf->auto_recover = bfa_nw_auto_recover;
}

/**
 * Beginning state. IOC is in reset state.
 */
static void
bfa_iocpf_sm_reset(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        switch (event) {
        case IOCPF_E_ENABLE:
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
                break;

        case IOCPF_E_STOP:
                break;

        default:
                bfa_sm_fault(event);
        }
}

/**
 * Semaphore should be acquired for version check.
 */
static void
bfa_iocpf_sm_fwcheck_entry(struct bfa_iocpf *iocpf)
{
        bfa_ioc_hw_sem_init(iocpf->ioc);
        bfa_ioc_hw_sem_get(iocpf->ioc);
}

/**
 * Awaiting h/w semaphore to continue with version check.
 */
static void
bfa_iocpf_sm_fwcheck(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_SEMLOCKED:
                if (bfa_ioc_firmware_lock(ioc)) {
                        if (bfa_ioc_sync_start(ioc)) {
                                iocpf->retry_count = 0;
                                bfa_ioc_sync_join(ioc);
                                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
                        } else {
                                bfa_ioc_firmware_unlock(ioc);
                                bfa_nw_ioc_hw_sem_release(ioc);
                                mod_timer(&ioc->sem_timer, jiffies +
                                        msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
                        }
                } else {
                        bfa_nw_ioc_hw_sem_release(ioc);
                        bfa_fsm_set_state(iocpf, bfa_iocpf_sm_mismatch);
                }
                break;

        case IOCPF_E_DISABLE:
                bfa_ioc_hw_sem_get_cancel(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
                bfa_ioc_pf_disabled(ioc);
                break;

        case IOCPF_E_STOP:
                bfa_ioc_hw_sem_get_cancel(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
                break;

        default:
                bfa_sm_fault(event);
        }
}

/**
 * Notify enable completion callback
 */
static void
bfa_iocpf_sm_mismatch_entry(struct bfa_iocpf *iocpf)
{
        /* Call only the first time sm enters fwmismatch state. */
        if (iocpf->retry_count == 0)
                bfa_ioc_pf_fwmismatch(iocpf->ioc);

        iocpf->retry_count++;
        mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
                msecs_to_jiffies(BFA_IOC_TOV));
}

/**
 * Awaiting firmware version match.
 */
static void
bfa_iocpf_sm_mismatch(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_TIMEOUT:
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
                break;

        case IOCPF_E_DISABLE:
                del_timer(&ioc->iocpf_timer);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
                bfa_ioc_pf_disabled(ioc);
                break;

        case IOCPF_E_STOP:
                del_timer(&ioc->iocpf_timer);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
                break;

        default:
                bfa_sm_fault(event);
        }
}

/**
 * Request for semaphore.
 */
static void
bfa_iocpf_sm_semwait_entry(struct bfa_iocpf *iocpf)
{
        bfa_ioc_hw_sem_get(iocpf->ioc);
}

/**
 * Awaiting semaphore for h/w initialzation.
 */
static void
bfa_iocpf_sm_semwait(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_SEMLOCKED:
                if (bfa_ioc_sync_complete(ioc)) {
                        bfa_ioc_sync_join(ioc);
                        bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
                } else {
                        bfa_nw_ioc_hw_sem_release(ioc);
                        mod_timer(&ioc->sem_timer, jiffies +
                                msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
                }
                break;

        case IOCPF_E_DISABLE:
                bfa_ioc_hw_sem_get_cancel(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_iocpf_sm_hwinit_entry(struct bfa_iocpf *iocpf)
{
        mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
                msecs_to_jiffies(BFA_IOC_TOV));
        bfa_ioc_reset(iocpf->ioc, 0);
}

/**
 * Hardware is being initialized. Interrupts are enabled.
 * Holding hardware semaphore lock.
 */
static void
bfa_iocpf_sm_hwinit(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_FWREADY:
                del_timer(&ioc->iocpf_timer);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_enabling);
                break;

        case IOCPF_E_INITFAIL:
                del_timer(&ioc->iocpf_timer);
                /*
                 * !!! fall through !!!
                 */

        case IOCPF_E_TIMEOUT:
                bfa_nw_ioc_hw_sem_release(ioc);
                if (event == IOCPF_E_TIMEOUT)
                        bfa_ioc_pf_failed(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
                break;

        case IOCPF_E_DISABLE:
                del_timer(&ioc->iocpf_timer);
                bfa_ioc_sync_leave(ioc);
                bfa_nw_ioc_hw_sem_release(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_iocpf_sm_enabling_entry(struct bfa_iocpf *iocpf)
{
        mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
                msecs_to_jiffies(BFA_IOC_TOV));
        bfa_ioc_send_enable(iocpf->ioc);
}

/**
 * Host IOC function is being enabled, awaiting response from firmware.
 * Semaphore is acquired.
 */
static void
bfa_iocpf_sm_enabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_FWRSP_ENABLE:
                del_timer(&ioc->iocpf_timer);
                bfa_nw_ioc_hw_sem_release(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_ready);
                break;

        case IOCPF_E_INITFAIL:
                del_timer(&ioc->iocpf_timer);
                /*
                 * !!! fall through !!!
                 */
        case IOCPF_E_TIMEOUT:
                bfa_nw_ioc_hw_sem_release(ioc);
                if (event == IOCPF_E_TIMEOUT)
                        bfa_ioc_pf_failed(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
                break;

        case IOCPF_E_DISABLE:
                del_timer(&ioc->iocpf_timer);
                bfa_nw_ioc_hw_sem_release(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
                break;

        case IOCPF_E_FWREADY:
                bfa_ioc_send_enable(ioc);
                break;

        default:
                bfa_sm_fault(event);
        }
}

static bool
bfa_nw_ioc_is_operational(struct bfa_ioc *ioc)
{
        return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_op);
}

static void
bfa_iocpf_sm_ready_entry(struct bfa_iocpf *iocpf)
{
        bfa_ioc_pf_enabled(iocpf->ioc);
}

static void
bfa_iocpf_sm_ready(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_DISABLE:
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
                break;

        case IOCPF_E_GETATTRFAIL:
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
                break;

        case IOCPF_E_FAIL:
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);
                break;

        case IOCPF_E_FWREADY:
                bfa_ioc_pf_failed(ioc);
                if (bfa_nw_ioc_is_operational(ioc))
                        bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);
                else
                        bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_iocpf_sm_disabling_entry(struct bfa_iocpf *iocpf)
{
        mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
                msecs_to_jiffies(BFA_IOC_TOV));
        bfa_ioc_send_disable(iocpf->ioc);
}

/**
 * IOC is being disabled
 */
static void
bfa_iocpf_sm_disabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_FWRSP_DISABLE:
        case IOCPF_E_FWREADY:
                del_timer(&ioc->iocpf_timer);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
                break;

        case IOCPF_E_FAIL:
                del_timer(&ioc->iocpf_timer);
                /*
                 * !!! fall through !!!
                 */

        case IOCPF_E_TIMEOUT:
                writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
                break;

        case IOCPF_E_FWRSP_ENABLE:
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_iocpf_sm_disabling_sync_entry(struct bfa_iocpf *iocpf)
{
        bfa_ioc_hw_sem_get(iocpf->ioc);
}

/**
 * IOC hb ack request is being removed.
 */
static void
bfa_iocpf_sm_disabling_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_SEMLOCKED:
                bfa_ioc_sync_leave(ioc);
                bfa_nw_ioc_hw_sem_release(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
                break;

        case IOCPF_E_FAIL:
                break;

        default:
                bfa_sm_fault(event);
        }
}

/**
 * IOC disable completion entry.
 */
static void
bfa_iocpf_sm_disabled_entry(struct bfa_iocpf *iocpf)
{
        bfa_ioc_mbox_flush(iocpf->ioc);
        bfa_ioc_pf_disabled(iocpf->ioc);
}

static void
bfa_iocpf_sm_disabled(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_ENABLE:
                iocpf->retry_count = 0;
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
                break;

        case IOCPF_E_STOP:
                bfa_ioc_firmware_unlock(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_iocpf_sm_initfail_sync_entry(struct bfa_iocpf *iocpf)
{
        bfa_ioc_hw_sem_get(iocpf->ioc);
}

/**
 * Hardware initialization failed.
 */
static void
bfa_iocpf_sm_initfail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_SEMLOCKED:
                bfa_ioc_notify_fail(ioc);
                bfa_ioc_sync_ack(ioc);
                iocpf->retry_count++;
                if (iocpf->retry_count >= BFA_IOC_HWINIT_MAX) {
                        bfa_ioc_sync_leave(ioc);
                        bfa_nw_ioc_hw_sem_release(ioc);
                        bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);
                } else {
                        if (bfa_ioc_sync_complete(ioc))
                                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
                        else {
                                bfa_nw_ioc_hw_sem_release(ioc);
                                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
                        }
                }
                break;

        case IOCPF_E_DISABLE:
                bfa_ioc_hw_sem_get_cancel(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
                break;

        case IOCPF_E_STOP:
                bfa_ioc_hw_sem_get_cancel(ioc);
                bfa_ioc_firmware_unlock(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
                break;

        case IOCPF_E_FAIL:
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_iocpf_sm_initfail_entry(struct bfa_iocpf *iocpf)
{
        bfa_ioc_pf_initfailed(iocpf->ioc);
}

/**
 * Hardware initialization failed.
 */
static void
bfa_iocpf_sm_initfail(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_DISABLE:
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
                break;

        case IOCPF_E_STOP:
                bfa_ioc_firmware_unlock(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_iocpf_sm_fail_sync_entry(struct bfa_iocpf *iocpf)
{
        /**
         * Mark IOC as failed in hardware and stop firmware.
         */
        bfa_ioc_lpu_stop(iocpf->ioc);

        /**
         * Flush any queued up mailbox requests.
         */
        bfa_ioc_mbox_flush(iocpf->ioc);
        bfa_ioc_hw_sem_get(iocpf->ioc);
}

/**
 * IOC is in failed state.
 */
static void
bfa_iocpf_sm_fail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        struct bfa_ioc *ioc = iocpf->ioc;

        switch (event) {
        case IOCPF_E_SEMLOCKED:
                iocpf->retry_count = 0;
                bfa_ioc_sync_ack(ioc);
                bfa_ioc_notify_fail(ioc);
                if (!iocpf->auto_recover) {
                        bfa_ioc_sync_leave(ioc);
                        bfa_nw_ioc_hw_sem_release(ioc);
                        bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
                } else {
                        if (bfa_ioc_sync_complete(ioc))
                                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
                        else {
                                bfa_nw_ioc_hw_sem_release(ioc);
                                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
                        }
                }
                break;

        case IOCPF_E_DISABLE:
                bfa_ioc_hw_sem_get_cancel(ioc);
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
                break;

        case IOCPF_E_FAIL:
                break;

        default:
                bfa_sm_fault(event);
        }
}

static void
bfa_iocpf_sm_fail_entry(struct bfa_iocpf *iocpf)
{
}

/**
 * @brief
 * IOC is in failed state.
 */
static void
bfa_iocpf_sm_fail(struct bfa_iocpf *iocpf, enum iocpf_event event)
{
        switch (event) {
        case IOCPF_E_DISABLE:
                bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
                break;

        default:
                bfa_sm_fault(event);
        }
}

/**
 * BFA IOC private functions
 */

/**
 * Notify common modules registered for notification.
 */
static void
bfa_ioc_event_notify(struct bfa_ioc *ioc, enum bfa_ioc_event event)
{
        struct bfa_ioc_notify *notify;
        struct list_head                        *qe;

        list_for_each(qe, &ioc->notify_q) {
                notify = (struct bfa_ioc_notify *)qe;
                notify->cbfn(notify->cbarg, event);
        }
}

static void
bfa_ioc_disable_comp(struct bfa_ioc *ioc)
{
        ioc->cbfn->disable_cbfn(ioc->bfa);
        bfa_ioc_event_notify(ioc, BFA_IOC_E_DISABLED);
}

bool
bfa_nw_ioc_sem_get(void __iomem *sem_reg)
{
        u32 r32;
        int cnt = 0;
#define BFA_SEM_SPINCNT 3000

        r32 = readl(sem_reg);

        while (r32 && (cnt < BFA_SEM_SPINCNT)) {
                cnt++;
                udelay(2);
                r32 = readl(sem_reg);
        }

        if (r32 == 0)
                return true;

        BUG_ON(!(cnt < BFA_SEM_SPINCNT));
        return false;
}

void
bfa_nw_ioc_sem_release(void __iomem *sem_reg)
{
        writel(1, sem_reg);
}

static void
bfa_ioc_hw_sem_init(struct bfa_ioc *ioc)
{
        struct bfi_ioc_image_hdr fwhdr;
        u32 fwstate = readl(ioc->ioc_regs.ioc_fwstate);

        if (fwstate == BFI_IOC_UNINIT)
                return;

        bfa_nw_ioc_fwver_get(ioc, &fwhdr);

        if (swab32(fwhdr.exec) == BFI_FWBOOT_TYPE_NORMAL)
                return;

        writel(BFI_IOC_UNINIT, ioc->ioc_regs.ioc_fwstate);

        /*
         * Try to lock and then unlock the semaphore.
         */
        readl(ioc->ioc_regs.ioc_sem_reg);
        writel(1, ioc->ioc_regs.ioc_sem_reg);
}

static void
bfa_ioc_hw_sem_get(struct bfa_ioc *ioc)
{
        u32     r32;

        /**
         * First read to the semaphore register will return 0, subsequent reads
         * will return 1. Semaphore is released by writing 1 to the register
         */
        r32 = readl(ioc->ioc_regs.ioc_sem_reg);
        if (r32 == 0) {
                bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_SEMLOCKED);
                return;
        }

        mod_timer(&ioc->sem_timer, jiffies +
                msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
}

void
bfa_nw_ioc_hw_sem_release(struct bfa_ioc *ioc)
{
        writel(1, ioc->ioc_regs.ioc_sem_reg);
}

static void
bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc)
{
        del_timer(&ioc->sem_timer);
}

/**
 * @brief
 * Initialize LPU local memory (aka secondary memory / SRAM)
 */
static void
bfa_ioc_lmem_init(struct bfa_ioc *ioc)
{
        u32     pss_ctl;
        int             i;
#define PSS_LMEM_INIT_TIME  10000

        pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
        pss_ctl &= ~__PSS_LMEM_RESET;
        pss_ctl |= __PSS_LMEM_INIT_EN;

        /*
         * i2c workaround 12.5khz clock
         */
        pss_ctl |= __PSS_I2C_CLK_DIV(3UL);
        writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);

        /**
         * wait for memory initialization to be complete
         */
        i = 0;
        do {
                pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
                i++;
        } while (!(pss_ctl & __PSS_LMEM_INIT_DONE) && (i < PSS_LMEM_INIT_TIME));

        /**
         * If memory initialization is not successful, IOC timeout will catch
         * such failures.
         */
        BUG_ON(!(pss_ctl & __PSS_LMEM_INIT_DONE));

        pss_ctl &= ~(__PSS_LMEM_INIT_DONE | __PSS_LMEM_INIT_EN);
        writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
}

static void
bfa_ioc_lpu_start(struct bfa_ioc *ioc)
{
        u32     pss_ctl;

        /**
         * Take processor out of reset.
         */
        pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
        pss_ctl &= ~__PSS_LPU0_RESET;

        writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
}

static void
bfa_ioc_lpu_stop(struct bfa_ioc *ioc)
{
        u32     pss_ctl;

        /**
         * Put processors in reset.
         */
        pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
        pss_ctl |= (__PSS_LPU0_RESET | __PSS_LPU1_RESET);

        writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
}

/**
 * Get driver and firmware versions.
 */
void
bfa_nw_ioc_fwver_get(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
{
        u32     pgnum;
        u32     loff = 0;
        int             i;
        u32     *fwsig = (u32 *) fwhdr;

        pgnum = bfa_ioc_smem_pgnum(ioc, loff);
        writel(pgnum, ioc->ioc_regs.host_page_num_fn);

        for (i = 0; i < (sizeof(struct bfi_ioc_image_hdr) / sizeof(u32));
             i++) {
                fwsig[i] =
                        swab32(readl((loff) + (ioc->ioc_regs.smem_page_start)));
                loff += sizeof(u32);
        }
}

/**
 * Returns TRUE if same.
 */
bool
bfa_nw_ioc_fwver_cmp(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
{
        struct bfi_ioc_image_hdr *drv_fwhdr;
        int i;

        drv_fwhdr = (struct bfi_ioc_image_hdr *)
                bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), 0);

        for (i = 0; i < BFI_IOC_MD5SUM_SZ; i++) {
                if (fwhdr->md5sum[i] != drv_fwhdr->md5sum[i])
                        return false;
        }

        return true;
}

/**
 * Return true if current running version is valid. Firmware signature and
 * execution context (driver/bios) must match.
 */
static bool
bfa_ioc_fwver_valid(struct bfa_ioc *ioc, u32 boot_env)
{
        struct bfi_ioc_image_hdr fwhdr, *drv_fwhdr;

        bfa_nw_ioc_fwver_get(ioc, &fwhdr);
        drv_fwhdr = (struct bfi_ioc_image_hdr *)
                bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), 0);

        if (fwhdr.signature != drv_fwhdr->signature)
                return false;

        if (swab32(fwhdr.param) != boot_env)
                return false;

        return bfa_nw_ioc_fwver_cmp(ioc, &fwhdr);
}

/**
 * Conditionally flush any pending message from firmware at start.
 */
static void
bfa_ioc_msgflush(struct bfa_ioc *ioc)
{
        u32     r32;

        r32 = readl(ioc->ioc_regs.lpu_mbox_cmd);
        if (r32)
                writel(1, ioc->ioc_regs.lpu_mbox_cmd);
}

/**
 * @img ioc_init_logic.jpg
 */
static void
bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force)
{
        enum bfi_ioc_state ioc_fwstate;
        bool fwvalid;
        u32 boot_env;

        ioc_fwstate = readl(ioc->ioc_regs.ioc_fwstate);

        boot_env = BFI_BOOT_LOADER_OS;

        if (force)
                ioc_fwstate = BFI_IOC_UNINIT;

        /**
         * check if firmware is valid
         */
        fwvalid = (ioc_fwstate == BFI_IOC_UNINIT) ?
                false : bfa_ioc_fwver_valid(ioc, boot_env);

        if (!fwvalid) {
                bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, boot_env);
                return;
        }

        /**
         * If hardware initialization is in progress (initialized by other IOC),
         * just wait for an initialization completion interrupt.
         */
        if (ioc_fwstate == BFI_IOC_INITING) {
                ioc->cbfn->reset_cbfn(ioc->bfa);
                return;
        }

        /**
         * If IOC function is disabled and firmware version is same,
         * just re-enable IOC.
         */
        if (ioc_fwstate == BFI_IOC_DISABLED || ioc_fwstate == BFI_IOC_OP) {
                /**
                 * When using MSI-X any pending firmware ready event should
                 * be flushed. Otherwise MSI-X interrupts are not delivered.
                 */
                bfa_ioc_msgflush(ioc);
                ioc->cbfn->reset_cbfn(ioc->bfa);
                bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FWREADY);
                return;
        }

        /**
         * Initialize the h/w for any other states.
         */
        bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, boot_env);
}

void
bfa_nw_ioc_timeout(void *ioc_arg)
{
        struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;

        bfa_fsm_send_event(ioc, IOC_E_TIMEOUT);
}

static void
bfa_ioc_mbox_send(struct bfa_ioc *ioc, void *ioc_msg, int len)
{
        u32 *msgp = (u32 *) ioc_msg;
        u32 i;

        BUG_ON(!(len <= BFI_IOC_MSGLEN_MAX));

        /*
         * first write msg to mailbox registers
         */
        for (i = 0; i < len / sizeof(u32); i++)
                writel(cpu_to_le32(msgp[i]),
                              ioc->ioc_regs.hfn_mbox + i * sizeof(u32));

        for (; i < BFI_IOC_MSGLEN_MAX / sizeof(u32); i++)
                writel(0, ioc->ioc_regs.hfn_mbox + i * sizeof(u32));

        /*
         * write 1 to mailbox CMD to trigger LPU event
         */
        writel(1, ioc->ioc_regs.hfn_mbox_cmd);
        (void) readl(ioc->ioc_regs.hfn_mbox_cmd);
}

static void
bfa_ioc_send_enable(struct bfa_ioc *ioc)
{
        struct bfi_ioc_ctrl_req enable_req;
        struct timeval tv;

        bfi_h2i_set(enable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_ENABLE_REQ,
                    bfa_ioc_portid(ioc));
        enable_req.ioc_class = ioc->ioc_mc;
        do_gettimeofday(&tv);
        enable_req.tv_sec = ntohl(tv.tv_sec);
        bfa_ioc_mbox_send(ioc, &enable_req, sizeof(struct bfi_ioc_ctrl_req));
}

static void
bfa_ioc_send_disable(struct bfa_ioc *ioc)
{
        struct bfi_ioc_ctrl_req disable_req;

        bfi_h2i_set(disable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_DISABLE_REQ,
                    bfa_ioc_portid(ioc));
        bfa_ioc_mbox_send(ioc, &disable_req, sizeof(struct bfi_ioc_ctrl_req));
}

static void
bfa_ioc_send_getattr(struct bfa_ioc *ioc)
{
        struct bfi_ioc_getattr_req attr_req;

        bfi_h2i_set(attr_req.mh, BFI_MC_IOC, BFI_IOC_H2I_GETATTR_REQ,
                    bfa_ioc_portid(ioc));
        bfa_dma_be_addr_set(attr_req.attr_addr, ioc->attr_dma.pa);
        bfa_ioc_mbox_send(ioc, &attr_req, sizeof(attr_req));
}

void
bfa_nw_ioc_hb_check(void *cbarg)
{
        struct bfa_ioc *ioc = cbarg;
        u32     hb_count;

        hb_count = readl(ioc->ioc_regs.heartbeat);
        if (ioc->hb_count == hb_count) {
                bfa_ioc_recover(ioc);
                return;
        } else {
                ioc->hb_count = hb_count;
        }

        bfa_ioc_mbox_poll(ioc);
        mod_timer(&ioc->hb_timer, jiffies +
                msecs_to_jiffies(BFA_IOC_HB_TOV));
}

static void
bfa_ioc_hb_monitor(struct bfa_ioc *ioc)
{
        ioc->hb_count = readl(ioc->ioc_regs.heartbeat);
        mod_timer(&ioc->hb_timer, jiffies +
                msecs_to_jiffies(BFA_IOC_HB_TOV));
}

static void
bfa_ioc_hb_stop(struct bfa_ioc *ioc)
{
        del_timer(&ioc->hb_timer);
}

/**
 * @brief
 *      Initiate a full firmware download.
 */
static void
bfa_ioc_download_fw(struct bfa_ioc *ioc, u32 boot_type,
                    u32 boot_env)
{
        u32 *fwimg;
        u32 pgnum;
        u32 loff = 0;
        u32 chunkno = 0;
        u32 i;

        /**
         * Initialize LMEM first before code download
         */
        bfa_ioc_lmem_init(ioc);

        fwimg = bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), chunkno);

        pgnum = bfa_ioc_smem_pgnum(ioc, loff);

        writel(pgnum, ioc->ioc_regs.host_page_num_fn);

        for (i = 0; i < bfa_cb_image_get_size(BFA_IOC_FWIMG_TYPE(ioc)); i++) {
                if (BFA_IOC_FLASH_CHUNK_NO(i) != chunkno) {
                        chunkno = BFA_IOC_FLASH_CHUNK_NO(i);
                        fwimg = bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc),
                                        BFA_IOC_FLASH_CHUNK_ADDR(chunkno));
                }

                /**
                 * write smem
                 */
                writel((swab32(fwimg[BFA_IOC_FLASH_OFFSET_IN_CHUNK(i)])),
                              ((ioc->ioc_regs.smem_page_start) + (loff)));

                loff += sizeof(u32);

                /**
                 * handle page offset wrap around
                 */
                loff = PSS_SMEM_PGOFF(loff);
                if (loff == 0) {
                        pgnum++;
                        writel(pgnum,
                                      ioc->ioc_regs.host_page_num_fn);
                }
        }

        writel(bfa_ioc_smem_pgnum(ioc, 0),
                      ioc->ioc_regs.host_page_num_fn);

        /*
         * Set boot type and boot param at the end.
        */
        writel(boot_type, ((ioc->ioc_regs.smem_page_start)
                        + (BFI_BOOT_TYPE_OFF)));
        writel(boot_env, ((ioc->ioc_regs.smem_page_start)
                        + (BFI_BOOT_LOADER_OFF)));
}

static void
bfa_ioc_reset(struct bfa_ioc *ioc, bool force)
{
        bfa_ioc_hwinit(ioc, force);
}

/**
 * @brief
 * Update BFA configuration from firmware configuration.
 */
static void
bfa_ioc_getattr_reply(struct bfa_ioc *ioc)
{
        struct bfi_ioc_attr *attr = ioc->attr;

        attr->adapter_prop  = ntohl(attr->adapter_prop);
        attr->card_type     = ntohl(attr->card_type);
        attr->maxfrsize     = ntohs(attr->maxfrsize);

        bfa_fsm_send_event(ioc, IOC_E_FWRSP_GETATTR);
}

/**
 * Attach time initialization of mbox logic.
 */
static void
bfa_ioc_mbox_attach(struct bfa_ioc *ioc)
{
        struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
        int     mc;

        INIT_LIST_HEAD(&mod->cmd_q);
        for (mc = 0; mc < BFI_MC_MAX; mc++) {
                mod->mbhdlr[mc].cbfn = NULL;
                mod->mbhdlr[mc].cbarg = ioc->bfa;
        }
}

/**
 * Mbox poll timer -- restarts any pending mailbox requests.
 */
static void
bfa_ioc_mbox_poll(struct bfa_ioc *ioc)
{
        struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
        struct bfa_mbox_cmd *cmd;
        u32                     stat;

        /**
         * If no command pending, do nothing
         */
        if (list_empty(&mod->cmd_q))
                return;

        /**
         * If previous command is not yet fetched by firmware, do nothing
         */
        stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
        if (stat)
                return;

        /**
         * Enqueue command to firmware.
         */
        bfa_q_deq(&mod->cmd_q, &cmd);
        bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
}

/**
 * Cleanup any pending requests.
 */
static void
bfa_ioc_mbox_flush(struct bfa_ioc *ioc)
{
        struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
        struct bfa_mbox_cmd *cmd;

        while (!list_empty(&mod->cmd_q))
                bfa_q_deq(&mod->cmd_q, &cmd);
}

static void
bfa_ioc_fail_notify(struct bfa_ioc *ioc)
{
        /**
         * Notify driver and common modules registered for notification.
         */
        ioc->cbfn->hbfail_cbfn(ioc->bfa);
        bfa_ioc_event_notify(ioc, BFA_IOC_E_FAILED);
}

static void
bfa_ioc_pf_enabled(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(ioc, IOC_E_ENABLED);
}

static void
bfa_ioc_pf_disabled(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(ioc, IOC_E_DISABLED);
}

static void
bfa_ioc_pf_initfailed(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(ioc, IOC_E_INITFAILED);
}

static void
bfa_ioc_pf_failed(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(ioc, IOC_E_PFFAILED);
}

static void
bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc)
{
        /**
         * Provide enable completion callback and AEN notification.
         */
        ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
}

/**
 * IOC public
 */
static enum bfa_status
bfa_ioc_pll_init(struct bfa_ioc *ioc)
{
        /*
         *  Hold semaphore so that nobody can access the chip during init.
         */
        bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_init_sem_reg);

        bfa_ioc_pll_init_asic(ioc);

        ioc->pllinit = true;
        /*
         *  release semaphore.
         */
        bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_init_sem_reg);

        return BFA_STATUS_OK;
}

/**
 * Interface used by diag module to do firmware boot with memory test
 * as the entry vector.
 */
static void
bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type, u32 boot_env)
{
        void __iomem *rb;

        bfa_ioc_stats(ioc, ioc_boots);

        if (bfa_ioc_pll_init(ioc) != BFA_STATUS_OK)
                return;

        /**
         * Initialize IOC state of all functions on a chip reset.
         */
        rb = ioc->pcidev.pci_bar_kva;
        if (boot_type == BFI_BOOT_TYPE_MEMTEST) {
                writel(BFI_IOC_MEMTEST, (rb + BFA_IOC0_STATE_REG));
                writel(BFI_IOC_MEMTEST, (rb + BFA_IOC1_STATE_REG));
        } else {
                writel(BFI_IOC_INITING, (rb + BFA_IOC0_STATE_REG));
                writel(BFI_IOC_INITING, (rb + BFA_IOC1_STATE_REG));
        }

        bfa_ioc_msgflush(ioc);
        bfa_ioc_download_fw(ioc, boot_type, boot_env);

        /**
         * Enable interrupts just before starting LPU
         */
        ioc->cbfn->reset_cbfn(ioc->bfa);
        bfa_ioc_lpu_start(ioc);
}

/**
 * Enable/disable IOC failure auto recovery.
 */
void
bfa_nw_ioc_auto_recover(bool auto_recover)
{
        bfa_nw_auto_recover = auto_recover;
}

static void
bfa_ioc_msgget(struct bfa_ioc *ioc, void *mbmsg)
{
        u32     *msgp = mbmsg;
        u32     r32;
        int             i;

        /**
         * read the MBOX msg
         */
        for (i = 0; i < (sizeof(union bfi_ioc_i2h_msg_u) / sizeof(u32));
             i++) {
                r32 = readl(ioc->ioc_regs.lpu_mbox +
                                   i * sizeof(u32));
                msgp[i] = htonl(r32);
        }

        /**
         * turn off mailbox interrupt by clearing mailbox status
         */
        writel(1, ioc->ioc_regs.lpu_mbox_cmd);
        readl(ioc->ioc_regs.lpu_mbox_cmd);
}

static void
bfa_ioc_isr(struct bfa_ioc *ioc, struct bfi_mbmsg *m)
{
        union bfi_ioc_i2h_msg_u *msg;
        struct bfa_iocpf *iocpf = &ioc->iocpf;

        msg = (union bfi_ioc_i2h_msg_u *) m;

        bfa_ioc_stats(ioc, ioc_isrs);

        switch (msg->mh.msg_id) {
        case BFI_IOC_I2H_HBEAT:
                break;

        case BFI_IOC_I2H_READY_EVENT:
                bfa_fsm_send_event(iocpf, IOCPF_E_FWREADY);
                break;

        case BFI_IOC_I2H_ENABLE_REPLY:
                bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_ENABLE);
                break;

        case BFI_IOC_I2H_DISABLE_REPLY:
                bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_DISABLE);
                break;

        case BFI_IOC_I2H_GETATTR_REPLY:
                bfa_ioc_getattr_reply(ioc);
                break;

        default:
                BUG_ON(1);
        }
}

/**
 * IOC attach time initialization and setup.
 *
 * @param[in]   ioc     memory for IOC
 * @param[in]   bfa     driver instance structure
 */
void
bfa_nw_ioc_attach(struct bfa_ioc *ioc, void *bfa, struct bfa_ioc_cbfn *cbfn)
{
        ioc->bfa        = bfa;
        ioc->cbfn       = cbfn;
        ioc->fcmode     = false;
        ioc->pllinit    = false;
        ioc->dbg_fwsave_once = true;
        ioc->iocpf.ioc  = ioc;

        bfa_ioc_mbox_attach(ioc);
        INIT_LIST_HEAD(&ioc->notify_q);

        bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
        bfa_fsm_send_event(ioc, IOC_E_RESET);
}

/**
 * Driver detach time IOC cleanup.
 */
void
bfa_nw_ioc_detach(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(ioc, IOC_E_DETACH);
}

/**
 * Setup IOC PCI properties.
 *
 * @param[in]   pcidev  PCI device information for this IOC
 */
void
bfa_nw_ioc_pci_init(struct bfa_ioc *ioc, struct bfa_pcidev *pcidev,
                 enum bfi_mclass mc)
{
        ioc->ioc_mc     = mc;
        ioc->pcidev     = *pcidev;
        ioc->ctdev      = bfa_asic_id_ct(ioc->pcidev.device_id);
        ioc->cna        = ioc->ctdev && !ioc->fcmode;

        bfa_nw_ioc_set_ct_hwif(ioc);

        bfa_ioc_map_port(ioc);
        bfa_ioc_reg_init(ioc);
}

/**
 * Initialize IOC dma memory
 *
 * @param[in]   dm_kva  kernel virtual address of IOC dma memory
 * @param[in]   dm_pa   physical address of IOC dma memory
 */
void
bfa_nw_ioc_mem_claim(struct bfa_ioc *ioc,  u8 *dm_kva, u64 dm_pa)
{
        /**
         * dma memory for firmware attribute
         */
        ioc->attr_dma.kva = dm_kva;
        ioc->attr_dma.pa = dm_pa;
        ioc->attr = (struct bfi_ioc_attr *) dm_kva;
}

/**
 * Return size of dma memory required.
 */
u32
bfa_nw_ioc_meminfo(void)
{
        return roundup(sizeof(struct bfi_ioc_attr), BFA_DMA_ALIGN_SZ);
}

void
bfa_nw_ioc_enable(struct bfa_ioc *ioc)
{
        bfa_ioc_stats(ioc, ioc_enables);
        ioc->dbg_fwsave_once = true;

        bfa_fsm_send_event(ioc, IOC_E_ENABLE);
}

void
bfa_nw_ioc_disable(struct bfa_ioc *ioc)
{
        bfa_ioc_stats(ioc, ioc_disables);
        bfa_fsm_send_event(ioc, IOC_E_DISABLE);
}

static u32
bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr)
{
        return PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, fmaddr);
}

/**
 * Register mailbox message handler function, to be called by common modules
 */
void
bfa_nw_ioc_mbox_regisr(struct bfa_ioc *ioc, enum bfi_mclass mc,
                    bfa_ioc_mbox_mcfunc_t cbfn, void *cbarg)
{
        struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;

        mod->mbhdlr[mc].cbfn    = cbfn;
        mod->mbhdlr[mc].cbarg = cbarg;
}

/**
 * Queue a mailbox command request to firmware. Waits if mailbox is busy.
 * Responsibility of caller to serialize
 *
 * @param[in]   ioc     IOC instance
 * @param[i]    cmd     Mailbox command
 */
void
bfa_nw_ioc_mbox_queue(struct bfa_ioc *ioc, struct bfa_mbox_cmd *cmd)
{
        struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
        u32                     stat;

        /**
         * If a previous command is pending, queue new command
         */
        if (!list_empty(&mod->cmd_q)) {
                list_add_tail(&cmd->qe, &mod->cmd_q);
                return;
        }

        /**
         * If mailbox is busy, queue command for poll timer
         */
        stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
        if (stat) {
                list_add_tail(&cmd->qe, &mod->cmd_q);
                return;
        }

        /**
         * mailbox is free -- queue command to firmware
         */
        bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));

        return;
}

/**
 * Handle mailbox interrupts
 */
void
bfa_nw_ioc_mbox_isr(struct bfa_ioc *ioc)
{
        struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
        struct bfi_mbmsg m;
        int                             mc;

        bfa_ioc_msgget(ioc, &m);

        /**
         * Treat IOC message class as special.
         */
        mc = m.mh.msg_class;
        if (mc == BFI_MC_IOC) {
                bfa_ioc_isr(ioc, &m);
                return;
        }

        if ((mc >= BFI_MC_MAX) || (mod->mbhdlr[mc].cbfn == NULL))
                return;

        mod->mbhdlr[mc].cbfn(mod->mbhdlr[mc].cbarg, &m);
}

void
bfa_nw_ioc_error_isr(struct bfa_ioc *ioc)
{
        bfa_ioc_stats(ioc, ioc_hbfails);
        bfa_ioc_stats_hb_count(ioc, ioc->hb_count);
        bfa_fsm_send_event(ioc, IOC_E_HWERROR);
}

/**
 * return true if IOC is disabled
 */
bool
bfa_nw_ioc_is_disabled(struct bfa_ioc *ioc)
{
        return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabling) ||
                bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabled);
}

/**
 * Add to IOC heartbeat failure notification queue. To be used by common
 * modules such as cee, port, diag.
 */
void
bfa_nw_ioc_notify_register(struct bfa_ioc *ioc,
                        struct bfa_ioc_notify *notify)
{
        list_add_tail(&notify->qe, &ioc->notify_q);
}

#define BFA_MFG_NAME "Brocade"
static void
bfa_ioc_get_adapter_attr(struct bfa_ioc *ioc,
                         struct bfa_adapter_attr *ad_attr)
{
        struct bfi_ioc_attr *ioc_attr;

        ioc_attr = ioc->attr;

        bfa_ioc_get_adapter_serial_num(ioc, ad_attr->serial_num);
        bfa_ioc_get_adapter_fw_ver(ioc, ad_attr->fw_ver);
        bfa_ioc_get_adapter_optrom_ver(ioc, ad_attr->optrom_ver);
        bfa_ioc_get_adapter_manufacturer(ioc, ad_attr->manufacturer);
        memcpy(&ad_attr->vpd, &ioc_attr->vpd,
                      sizeof(struct bfa_mfg_vpd));

        ad_attr->nports = bfa_ioc_get_nports(ioc);
        ad_attr->max_speed = bfa_ioc_speed_sup(ioc);

        bfa_ioc_get_adapter_model(ioc, ad_attr->model);
        /* For now, model descr uses same model string */
        bfa_ioc_get_adapter_model(ioc, ad_attr->model_descr);

        ad_attr->card_type = ioc_attr->card_type;
        ad_attr->is_mezz = bfa_mfg_is_mezz(ioc_attr->card_type);

        if (BFI_ADAPTER_IS_SPECIAL(ioc_attr->adapter_prop))
                ad_attr->prototype = 1;
        else
                ad_attr->prototype = 0;

        ad_attr->pwwn = bfa_ioc_get_pwwn(ioc);
        ad_attr->mac  = bfa_nw_ioc_get_mac(ioc);

        ad_attr->pcie_gen = ioc_attr->pcie_gen;
        ad_attr->pcie_lanes = ioc_attr->pcie_lanes;
        ad_attr->pcie_lanes_orig = ioc_attr->pcie_lanes_orig;
        ad_attr->asic_rev = ioc_attr->asic_rev;

        bfa_ioc_get_pci_chip_rev(ioc, ad_attr->hw_ver);

        ad_attr->cna_capable = ioc->cna;
        ad_attr->trunk_capable = (ad_attr->nports > 1) && !ioc->cna;
}

static enum bfa_ioc_type
bfa_ioc_get_type(struct bfa_ioc *ioc)
{
        if (!ioc->ctdev || ioc->fcmode)
                return BFA_IOC_TYPE_FC;
        else if (ioc->ioc_mc == BFI_MC_IOCFC)
                return BFA_IOC_TYPE_FCoE;
        else if (ioc->ioc_mc == BFI_MC_LL)
                return BFA_IOC_TYPE_LL;
        else {
                BUG_ON(!(ioc->ioc_mc == BFI_MC_LL));
                return BFA_IOC_TYPE_LL;
        }
}

static void
bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc, char *serial_num)
{
        memset(serial_num, 0, BFA_ADAPTER_SERIAL_NUM_LEN);
        memcpy(serial_num,
                        (void *)ioc->attr->brcd_serialnum,
                        BFA_ADAPTER_SERIAL_NUM_LEN);
}

static void
bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc, char *fw_ver)
{
        memset(fw_ver, 0, BFA_VERSION_LEN);
        memcpy(fw_ver, ioc->attr->fw_version, BFA_VERSION_LEN);
}

static void
bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc, char *chip_rev)
{
        BUG_ON(!(chip_rev));

        memset(chip_rev, 0, BFA_IOC_CHIP_REV_LEN);

        chip_rev[0] = 'R';
        chip_rev[1] = 'e';
        chip_rev[2] = 'v';
        chip_rev[3] = '-';
        chip_rev[4] = ioc->attr->asic_rev;
        chip_rev[5] = '\0';
}

static void
bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc, char *optrom_ver)
{
        memset(optrom_ver, 0, BFA_VERSION_LEN);
        memcpy(optrom_ver, ioc->attr->optrom_version,
                      BFA_VERSION_LEN);
}

static void
bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc, char *manufacturer)
{
        memset(manufacturer, 0, BFA_ADAPTER_MFG_NAME_LEN);
        memcpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
}

static void
bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model)
{
        struct bfi_ioc_attr *ioc_attr;

        BUG_ON(!(model));
        memset(model, 0, BFA_ADAPTER_MODEL_NAME_LEN);

        ioc_attr = ioc->attr;

        /**
         * model name
         */
        snprintf(model, BFA_ADAPTER_MODEL_NAME_LEN, "%s-%u",
                BFA_MFG_NAME, ioc_attr->card_type);
}

static enum bfa_ioc_state
bfa_ioc_get_state(struct bfa_ioc *ioc)
{
        enum bfa_iocpf_state iocpf_st;
        enum bfa_ioc_state ioc_st = bfa_sm_to_state(ioc_sm_table, ioc->fsm);

        if (ioc_st == BFA_IOC_ENABLING ||
                ioc_st == BFA_IOC_FAIL || ioc_st == BFA_IOC_INITFAIL) {

                iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);

                switch (iocpf_st) {
                case BFA_IOCPF_SEMWAIT:
                        ioc_st = BFA_IOC_SEMWAIT;
                        break;

                case BFA_IOCPF_HWINIT:
                        ioc_st = BFA_IOC_HWINIT;
                        break;

                case BFA_IOCPF_FWMISMATCH:
                        ioc_st = BFA_IOC_FWMISMATCH;
                        break;

                case BFA_IOCPF_FAIL:
                        ioc_st = BFA_IOC_FAIL;
                        break;

                case BFA_IOCPF_INITFAIL:
                        ioc_st = BFA_IOC_INITFAIL;
                        break;

                default:
                        break;
                }
        }
        return ioc_st;
}

void
bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr)
{
        memset((void *)ioc_attr, 0, sizeof(struct bfa_ioc_attr));

        ioc_attr->state = bfa_ioc_get_state(ioc);
        ioc_attr->port_id = ioc->port_id;

        ioc_attr->ioc_type = bfa_ioc_get_type(ioc);

        bfa_ioc_get_adapter_attr(ioc, &ioc_attr->adapter_attr);

        ioc_attr->pci_attr.device_id = ioc->pcidev.device_id;
        ioc_attr->pci_attr.pcifn = ioc->pcidev.pci_func;
        bfa_ioc_get_pci_chip_rev(ioc, ioc_attr->pci_attr.chip_rev);
}

/**
 * WWN public
 */
static u64
bfa_ioc_get_pwwn(struct bfa_ioc *ioc)
{
        return ioc->attr->pwwn;
}

mac_t
bfa_nw_ioc_get_mac(struct bfa_ioc *ioc)
{
        return ioc->attr->mac;
}

/**
 * Firmware failure detected. Start recovery actions.
 */
static void
bfa_ioc_recover(struct bfa_ioc *ioc)
{
        pr_crit("Heart Beat of IOC has failed\n");
        bfa_ioc_stats(ioc, ioc_hbfails);
        bfa_ioc_stats_hb_count(ioc, ioc->hb_count);
        bfa_fsm_send_event(ioc, IOC_E_HBFAIL);
}

static void
bfa_ioc_check_attr_wwns(struct bfa_ioc *ioc)
{
        if (bfa_ioc_get_type(ioc) == BFA_IOC_TYPE_LL)
                return;
}

/**
 * @dg hal_iocpf_pvt BFA IOC PF private functions
 * @{
 */

static void
bfa_iocpf_enable(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_ENABLE);
}

static void
bfa_iocpf_disable(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_DISABLE);
}

static void
bfa_iocpf_fail(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FAIL);
}

static void
bfa_iocpf_initfail(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_INITFAIL);
}

static void
bfa_iocpf_getattrfail(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_GETATTRFAIL);
}

static void
bfa_iocpf_stop(struct bfa_ioc *ioc)
{
        bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_STOP);
}

void
bfa_nw_iocpf_timeout(void *ioc_arg)
{
        struct bfa_ioc  *ioc = (struct bfa_ioc *) ioc_arg;

        bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_TIMEOUT);
}

void
bfa_nw_iocpf_sem_timeout(void *ioc_arg)
{
        struct bfa_ioc  *ioc = (struct bfa_ioc *) ioc_arg;

        bfa_ioc_hw_sem_get(ioc);
}