Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

[linux-2.6-omap-h63xx.git] / drivers / scsi / qla2xxx / qla_mbx.c

/*
 * QLogic Fibre Channel HBA Driver
 * Copyright (c)  2003-2005 QLogic Corporation
 *
 * See LICENSE.qla2xxx for copyright and licensing details.
 */
#include "qla_def.h"

#include <linux/delay.h>
#include <scsi/scsi_transport_fc.h>

static void
qla2x00_mbx_sem_timeout(unsigned long data)
{
        struct semaphore        *sem_ptr = (struct semaphore *)data;

        DEBUG11(printk("qla2x00_sem_timeout: entered.\n");)

        if (sem_ptr != NULL) {
                up(sem_ptr);
        }

        DEBUG11(printk("qla2x00_mbx_sem_timeout: exiting.\n");)
}

/*
 * qla2x00_mailbox_command
 *      Issue mailbox command and waits for completion.
 *
 * Input:
 *      ha = adapter block pointer.
 *      mcp = driver internal mbx struct pointer.
 *
 * Output:
 *      mb[MAX_MAILBOX_REGISTER_COUNT] = returned mailbox data.
 *
 * Returns:
 *      0 : QLA_SUCCESS = cmd performed success
 *      1 : QLA_FUNCTION_FAILED   (error encountered)
 *      6 : QLA_FUNCTION_TIMEOUT (timeout condition encountered)
 *
 * Context:
 *      Kernel context.
 */
static int
qla2x00_mailbox_command(scsi_qla_host_t *ha, mbx_cmd_t *mcp)
{
        int             rval;
        unsigned long    flags = 0;
        device_reg_t __iomem *reg = ha->iobase;
        struct timer_list       tmp_intr_timer;
        uint8_t         abort_active;
        uint8_t         io_lock_on = ha->flags.init_done;
        uint16_t        command;
        uint16_t        *iptr;
        uint16_t __iomem *optr;
        uint32_t        cnt;
        uint32_t        mboxes;
        unsigned long   mbx_flags = 0;
        unsigned long   wait_time;

        rval = QLA_SUCCESS;
        abort_active = test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no);)

        /*
         * Wait for active mailbox commands to finish by waiting at most tov
         * seconds. This is to serialize actual issuing of mailbox cmds during
         * non ISP abort time.
         */
        if (!abort_active) {
                if (qla2x00_down_timeout(&ha->mbx_cmd_sem, mcp->tov * HZ)) {
                        /* Timeout occurred. Return error. */
                        DEBUG2_3_11(printk("%s(%ld): cmd access timeout. "
                            "Exiting.\n", __func__, ha->host_no);)
                        return QLA_FUNCTION_TIMEOUT;
                }
        }

        ha->flags.mbox_busy = 1;
        /* Save mailbox command for debug */
        ha->mcp = mcp;

        /* Try to get mailbox register access */
        if (!abort_active)
                spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags);

        DEBUG11(printk("scsi(%ld): prepare to issue mbox cmd=0x%x.\n",
            ha->host_no, mcp->mb[0]);)

        spin_lock_irqsave(&ha->hardware_lock, flags);

        /* Load mailbox registers. */
        if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
                optr = (uint16_t __iomem *)&reg->isp24.mailbox0;
        else
                optr = (uint16_t __iomem *)MAILBOX_REG(ha, &reg->isp, 0);

        iptr = mcp->mb;
        command = mcp->mb[0];
        mboxes = mcp->out_mb;

        for (cnt = 0; cnt < ha->mbx_count; cnt++) {
                if (IS_QLA2200(ha) && cnt == 8)
                        optr =
                            (uint16_t __iomem *)MAILBOX_REG(ha, &reg->isp, 8);
                if (mboxes & BIT_0)
                        WRT_REG_WORD(optr, *iptr);

                mboxes >>= 1;
                optr++;
                iptr++;
        }

#if defined(QL_DEBUG_LEVEL_1)
        printk("%s(%ld): Loaded MBX registers (displayed in bytes) = \n",
            __func__, ha->host_no);
        qla2x00_dump_buffer((uint8_t *)mcp->mb, 16);
        printk("\n");
        qla2x00_dump_buffer(((uint8_t *)mcp->mb + 0x10), 16);
        printk("\n");
        qla2x00_dump_buffer(((uint8_t *)mcp->mb + 0x20), 8);
        printk("\n");
        printk("%s(%ld): I/O address = %p.\n", __func__, ha->host_no, optr);
        qla2x00_dump_regs(ha);
#endif

        /* Issue set host interrupt command to send cmd out. */
        ha->flags.mbox_int = 0;
        clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);

        /* Unlock mbx registers and wait for interrupt */
        DEBUG11(printk("%s(%ld): going to unlock irq & waiting for interrupt. "
            "jiffies=%lx.\n", __func__, ha->host_no, jiffies);)

        /* Wait for mbx cmd completion until timeout */

        if (!abort_active && io_lock_on) {
                /* sleep on completion semaphore */
                DEBUG11(printk("%s(%ld): INTERRUPT MODE. Initializing timer.\n",
                    __func__, ha->host_no);)

                init_timer(&tmp_intr_timer);
                tmp_intr_timer.data = (unsigned long)&ha->mbx_intr_sem;
                tmp_intr_timer.expires = jiffies + mcp->tov * HZ;
                tmp_intr_timer.function =
                    (void (*)(unsigned long))qla2x00_mbx_sem_timeout;

                DEBUG11(printk("%s(%ld): Adding timer.\n", __func__,
                    ha->host_no);)
                add_timer(&tmp_intr_timer);

                DEBUG11(printk("%s(%ld): going to unlock & sleep. "
                    "time=0x%lx.\n", __func__, ha->host_no, jiffies);)

                set_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);

                if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
                        WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_SET_HOST_INT);
                else
                        WRT_REG_WORD(&reg->isp.hccr, HCCR_SET_HOST_INT);
                spin_unlock_irqrestore(&ha->hardware_lock, flags);

                if (!abort_active)
                        spin_unlock_irqrestore(&ha->mbx_reg_lock, mbx_flags);

                /* Wait for either the timer to expire
                 * or the mbox completion interrupt
                 */
                down(&ha->mbx_intr_sem);

                DEBUG11(printk("%s(%ld): waking up. time=0x%lx\n", __func__,
                    ha->host_no, jiffies);)
                clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);

                /* delete the timer */
                del_timer(&tmp_intr_timer);
        } else {
                DEBUG3_11(printk("%s(%ld): cmd=%x POLLING MODE.\n", __func__,
                    ha->host_no, command);)

                if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
                        WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_SET_HOST_INT);
                else
                        WRT_REG_WORD(&reg->isp.hccr, HCCR_SET_HOST_INT);
                spin_unlock_irqrestore(&ha->hardware_lock, flags);
                if (!abort_active)
                        spin_unlock_irqrestore(&ha->mbx_reg_lock, mbx_flags);

                wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */
                while (!ha->flags.mbox_int) {
                        if (time_after(jiffies, wait_time))
                                break;

                        /* Check for pending interrupts. */
                        qla2x00_poll(ha);

                        udelay(10); /* v4.27 */
                } /* while */
        }

        if (!abort_active)
                spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags);

        /* Check whether we timed out */
        if (ha->flags.mbox_int) {
                uint16_t *iptr2;

                DEBUG3_11(printk("%s(%ld): cmd %x completed.\n", __func__,
                    ha->host_no, command);)

                /* Got interrupt. Clear the flag. */
                ha->flags.mbox_int = 0;
                clear_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);

                if (ha->mailbox_out[0] != MBS_COMMAND_COMPLETE)
                        rval = QLA_FUNCTION_FAILED;

                /* Load return mailbox registers. */
                iptr2 = mcp->mb;
                iptr = (uint16_t *)&ha->mailbox_out[0];
                mboxes = mcp->in_mb;
                for (cnt = 0; cnt < ha->mbx_count; cnt++) {
                        if (mboxes & BIT_0)
                                *iptr2 = *iptr;

                        mboxes >>= 1;
                        iptr2++;
                        iptr++;
                }
        } else {

#if defined(QL_DEBUG_LEVEL_2) || defined(QL_DEBUG_LEVEL_3) || \
                defined(QL_DEBUG_LEVEL_11)
                uint16_t mb0;
                uint32_t ictrl;

                if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
                        mb0 = RD_REG_WORD(&reg->isp24.mailbox0);
                        ictrl = RD_REG_DWORD(&reg->isp24.ictrl);
                } else {
                        mb0 = RD_MAILBOX_REG(ha, &reg->isp, 0);
                        ictrl = RD_REG_WORD(&reg->isp.ictrl);
                }
                printk("%s(%ld): **** MB Command Timeout for cmd %x ****\n",
                    __func__, ha->host_no, command);
                printk("%s(%ld): icontrol=%x jiffies=%lx\n", __func__,
                    ha->host_no, ictrl, jiffies);
                printk("%s(%ld): *** mailbox[0] = 0x%x ***\n", __func__,
                    ha->host_no, mb0);
                qla2x00_dump_regs(ha);
#endif

                rval = QLA_FUNCTION_TIMEOUT;
        }

        if (!abort_active)
                spin_unlock_irqrestore(&ha->mbx_reg_lock, mbx_flags);

        ha->flags.mbox_busy = 0;

        /* Clean up */
        ha->mcp = NULL;

        if (!abort_active) {
                DEBUG11(printk("%s(%ld): checking for additional resp "
                    "interrupt.\n", __func__, ha->host_no);)

                /* polling mode for non isp_abort commands. */
                qla2x00_poll(ha);
        }

        if (rval == QLA_FUNCTION_TIMEOUT &&
            mcp->mb[0] != MBC_GEN_SYSTEM_ERROR) {
                if (!io_lock_on || (mcp->flags & IOCTL_CMD)) {
                        /* not in dpc. schedule it for dpc to take over. */
                        DEBUG(printk("%s(%ld): timeout schedule "
                            "isp_abort_needed.\n", __func__, ha->host_no);)
                        DEBUG2_3_11(printk("%s(%ld): timeout schedule "
                            "isp_abort_needed.\n", __func__, ha->host_no);)
                        qla_printk(KERN_WARNING, ha,
                            "Mailbox command timeout occured. Scheduling ISP "
                            "abort.\n");
                        set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
                        if (ha->dpc_wait && !ha->dpc_active)
                                up(ha->dpc_wait);

                } else if (!abort_active) {
                        /* call abort directly since we are in the DPC thread */
                        DEBUG(printk("%s(%ld): timeout calling abort_isp\n",
                            __func__, ha->host_no);)
                        DEBUG2_3_11(printk("%s(%ld): timeout calling "
                            "abort_isp\n", __func__, ha->host_no);)
                        qla_printk(KERN_WARNING, ha,
                            "Mailbox command timeout occured. Issuing ISP "
                            "abort.\n");

                        set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
                        clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
                        if (qla2x00_abort_isp(ha)) {
                                /* Failed. retry later. */
                                set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
                        }
                        clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
                        DEBUG(printk("%s(%ld): finished abort_isp\n", __func__,
                            ha->host_no);)
                        DEBUG2_3_11(printk("%s(%ld): finished abort_isp\n",
                            __func__, ha->host_no);)
                }
        }

        /* Allow next mbx cmd to come in. */
        if (!abort_active)
                up(&ha->mbx_cmd_sem);

        if (rval) {
                DEBUG2_3_11(printk("%s(%ld): **** FAILED. mbx0=%x, mbx1=%x, "
                    "mbx2=%x, cmd=%x ****\n", __func__, ha->host_no,
                    mcp->mb[0], mcp->mb[1], mcp->mb[2], command);)
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_load_ram
 *      Load adapter RAM using DMA.
 *
 * Input:
 *      ha = adapter block pointer.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_load_ram(scsi_qla_host_t *ha, dma_addr_t req_dma, uint16_t risc_addr,
    uint16_t risc_code_size)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;
        uint32_t        req_len;
        dma_addr_t      nml_dma;
        uint32_t        nml_len;
        uint32_t        normalized;

        DEBUG11(printk("qla2x00_load_ram(%ld): entered.\n",
            ha->host_no);)

        req_len = risc_code_size;
        nml_dma = 0;
        nml_len = 0;

        normalized = qla2x00_normalize_dma_addr(&req_dma, &req_len, &nml_dma,
            &nml_len);

        /* Load first segment */
        mcp->mb[0] = MBC_LOAD_RISC_RAM;
        mcp->mb[1] = risc_addr;
        mcp->mb[2] = MSW(req_dma);
        mcp->mb[3] = LSW(req_dma);
        mcp->mb[4] = (uint16_t)req_len;
        mcp->mb[6] = MSW(MSD(req_dma));
        mcp->mb[7] = LSW(MSD(req_dma));
        mcp->out_mb = MBX_7|MBX_6|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->in_mb = MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        /* Load second segment - if necessary */
        if (normalized && (rval == QLA_SUCCESS)) {
                mcp->mb[0] = MBC_LOAD_RISC_RAM;
                mcp->mb[1] = risc_addr + (uint16_t)req_len;
                mcp->mb[2] = MSW(nml_dma);
                mcp->mb[3] = LSW(nml_dma);
                mcp->mb[4] = (uint16_t)nml_len;
                mcp->mb[6] = MSW(MSD(nml_dma));
                mcp->mb[7] = LSW(MSD(nml_dma));
                mcp->out_mb = MBX_7|MBX_6|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
                mcp->in_mb = MBX_0;
                mcp->tov = 30;
                mcp->flags = 0;
                rval = qla2x00_mailbox_command(ha, mcp);
        }

        if (rval == QLA_SUCCESS) {
                /* Empty */
                DEBUG11(printk("qla2x00_load_ram(%ld): done.\n", ha->host_no);)
        } else {
                /* Empty */
                DEBUG2_3_11(printk("qla2x00_load_ram(%ld): failed. rval=%x "
                    "mb[0]=%x.\n", ha->host_no, rval, mcp->mb[0]);)
        }
        return rval;
}

/*
 * qla2x00_load_ram_ext
 *      Load adapter extended RAM using DMA.
 *
 * Input:
 *      ha = adapter block pointer.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_load_ram_ext(scsi_qla_host_t *ha, dma_addr_t req_dma,
    uint32_t risc_addr, uint32_t risc_code_size)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));

        mcp->mb[0] = MBC_LOAD_RISC_RAM_EXTENDED;
        mcp->mb[1] = LSW(risc_addr);
        mcp->mb[2] = MSW(req_dma);
        mcp->mb[3] = LSW(req_dma);
        mcp->mb[6] = MSW(MSD(req_dma));
        mcp->mb[7] = LSW(MSD(req_dma));
        mcp->mb[8] = MSW(risc_addr);
        mcp->out_mb = MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
        if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
                mcp->mb[4] = MSW(risc_code_size);
                mcp->mb[5] = LSW(risc_code_size);
                mcp->out_mb |= MBX_5|MBX_4;
        } else {
                mcp->mb[4] = LSW(risc_code_size);
                mcp->out_mb |= MBX_4;
        }

        mcp->in_mb = MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x.\n", __func__,
                    ha->host_no, rval, mcp->mb[0]));
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
        }

        return rval;
}

/*
 * qla2x00_execute_fw
 *     Start adapter firmware.
 *
 * Input:
 *     ha = adapter block pointer.
 *     TARGET_QUEUE_LOCK must be released.
 *     ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *     qla2x00 local function return status code.
 *
 * Context:
 *     Kernel context.
 */
int
qla2x00_execute_fw(scsi_qla_host_t *ha, uint32_t risc_addr)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no);)

        mcp->mb[0] = MBC_EXECUTE_FIRMWARE;
        mcp->out_mb = MBX_0;
        mcp->in_mb = MBX_0;
        if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
                mcp->mb[1] = MSW(risc_addr);
                mcp->mb[2] = LSW(risc_addr);
                mcp->mb[3] = 0;
                mcp->out_mb |= MBX_3|MBX_2|MBX_1;
                mcp->in_mb |= MBX_1;
        } else {
                mcp->mb[1] = LSW(risc_addr);
                mcp->out_mb |= MBX_1;
                if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
                        mcp->mb[2] = 0;
                        mcp->out_mb |= MBX_2;
                }
        }

        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x.\n", __func__,
                    ha->host_no, rval, mcp->mb[0]));
        } else {
                if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
                        DEBUG11(printk("%s(%ld): done exchanges=%x.\n",
                            __func__, ha->host_no, mcp->mb[1]);)
                } else {
                        DEBUG11(printk("%s(%ld): done.\n", __func__,
                            ha->host_no);)
                }
        }

        return rval;
}

/*
 * qla2x00_get_fw_version
 *      Get firmware version.
 *
 * Input:
 *      ha:             adapter state pointer.
 *      major:          pointer for major number.
 *      minor:          pointer for minor number.
 *      subminor:       pointer for subminor number.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
void
qla2x00_get_fw_version(scsi_qla_host_t *ha, uint16_t *major, uint16_t *minor,
    uint16_t *subminor, uint16_t *attributes, uint32_t *memory)
{
        int             rval;
        mbx_cmd_t       mc;
        mbx_cmd_t       *mcp = &mc;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));

        mcp->mb[0] = MBC_GET_FIRMWARE_VERSION;
        mcp->out_mb = MBX_0;
        mcp->in_mb = MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->flags = 0;
        mcp->tov = 30;
        rval = qla2x00_mailbox_command(ha, mcp);

        /* Return mailbox data. */
        *major = mcp->mb[1];
        *minor = mcp->mb[2];
        *subminor = mcp->mb[3];
        *attributes = mcp->mb[6];
        if (IS_QLA2100(ha) || IS_QLA2200(ha))
                *memory = 0x1FFFF;                      /* Defaults to 128KB. */
        else
                *memory = (mcp->mb[5] << 16) | mcp->mb[4];

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__,
                    ha->host_no, rval));
        } else {
                /*EMPTY*/
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
        }
}

/*
 * qla2x00_get_fw_options
 *      Set firmware options.
 *
 * Input:
 *      ha = adapter block pointer.
 *      fwopt = pointer for firmware options.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_get_fw_options(scsi_qla_host_t *ha, uint16_t *fwopts)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));

        mcp->mb[0] = MBC_GET_FIRMWARE_OPTION;
        mcp->out_mb = MBX_0;
        mcp->in_mb = MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__,
                    ha->host_no, rval));
        } else {
                fwopts[0] = mcp->mb[0];
                fwopts[1] = mcp->mb[1];
                fwopts[2] = mcp->mb[2];
                fwopts[3] = mcp->mb[3];

                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
        }

        return rval;
}


/*
 * qla2x00_set_fw_options
 *      Set firmware options.
 *
 * Input:
 *      ha = adapter block pointer.
 *      fwopt = pointer for firmware options.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_set_fw_options(scsi_qla_host_t *ha, uint16_t *fwopts)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));

        mcp->mb[0] = MBC_SET_FIRMWARE_OPTION;
        mcp->mb[1] = fwopts[1];
        mcp->mb[2] = fwopts[2];
        mcp->mb[3] = fwopts[3];
        mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->in_mb = MBX_0;
        if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
                mcp->in_mb |= MBX_1;
        } else {
                mcp->mb[10] = fwopts[10];
                mcp->mb[11] = fwopts[11];
                mcp->mb[12] = 0;        /* Undocumented, but used */
                mcp->out_mb |= MBX_12|MBX_11|MBX_10;
        }
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        fwopts[0] = mcp->mb[0];

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("%s(%ld): failed=%x (%x/%x).\n", __func__,
                    ha->host_no, rval, mcp->mb[0], mcp->mb[1]));
        } else {
                /*EMPTY*/
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
        }

        return rval;
}

/*
 * qla2x00_mbx_reg_test
 *      Mailbox register wrap test.
 *
 * Input:
 *      ha = adapter block pointer.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_mbx_reg_test(scsi_qla_host_t *ha)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_mbx_reg_test(%ld): entered.\n", ha->host_no);)

        mcp->mb[0] = MBC_MAILBOX_REGISTER_TEST;
        mcp->mb[1] = 0xAAAA;
        mcp->mb[2] = 0x5555;
        mcp->mb[3] = 0xAA55;
        mcp->mb[4] = 0x55AA;
        mcp->mb[5] = 0xA5A5;
        mcp->mb[6] = 0x5A5A;
        mcp->mb[7] = 0x2525;
        mcp->out_mb = MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->in_mb = MBX_7|MBX_6|MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval == QLA_SUCCESS) {
                if (mcp->mb[1] != 0xAAAA || mcp->mb[2] != 0x5555 ||
                    mcp->mb[3] != 0xAA55 || mcp->mb[4] != 0x55AA)
                        rval = QLA_FUNCTION_FAILED;
                if (mcp->mb[5] != 0xA5A5 || mcp->mb[6] != 0x5A5A ||
                    mcp->mb[7] != 0x2525)
                        rval = QLA_FUNCTION_FAILED;
        }

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("qla2x00_mbx_reg_test(%ld): failed=%x.\n",
                    ha->host_no, rval);)
        } else {
                /*EMPTY*/
                DEBUG11(printk("qla2x00_mbx_reg_test(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_verify_checksum
 *      Verify firmware checksum.
 *
 * Input:
 *      ha = adapter block pointer.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_verify_checksum(scsi_qla_host_t *ha, uint32_t risc_addr)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no);)

        mcp->mb[0] = MBC_VERIFY_CHECKSUM;
        mcp->out_mb = MBX_0;
        mcp->in_mb = MBX_0;
        if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
                mcp->mb[1] = MSW(risc_addr);
                mcp->mb[2] = LSW(risc_addr);
                mcp->out_mb |= MBX_2|MBX_1;
                mcp->in_mb |= MBX_2|MBX_1;
        } else {
                mcp->mb[1] = LSW(risc_addr);
                mcp->out_mb |= MBX_1;
                mcp->in_mb |= MBX_1;
        }

        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed=%x chk sum=%x.\n", __func__,
                    ha->host_no, rval, (IS_QLA24XX(ha) || IS_QLA25XX(ha) ?
                    (mcp->mb[2] << 16) | mcp->mb[1]: mcp->mb[1]));)
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_issue_iocb
 *      Issue IOCB using mailbox command
 *
 * Input:
 *      ha = adapter state pointer.
 *      buffer = buffer pointer.
 *      phys_addr = physical address of buffer.
 *      size = size of buffer.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_issue_iocb(scsi_qla_host_t *ha, void*  buffer, dma_addr_t phys_addr,
    size_t size)
{
        int             rval;
        mbx_cmd_t       mc;
        mbx_cmd_t       *mcp = &mc;

        mcp->mb[0] = MBC_IOCB_COMMAND_A64;
        mcp->mb[1] = 0;
        mcp->mb[2] = MSW(phys_addr);
        mcp->mb[3] = LSW(phys_addr);
        mcp->mb[6] = MSW(MSD(phys_addr));
        mcp->mb[7] = LSW(MSD(phys_addr));
        mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->in_mb = MBX_2|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG(printk("qla2x00_issue_iocb(%ld): failed rval 0x%x\n",
                    ha->host_no, rval);)
                DEBUG2(printk("qla2x00_issue_iocb(%ld): failed rval 0x%x\n",
                    ha->host_no, rval);)
        } else {
                sts_entry_t *sts_entry = (sts_entry_t *) buffer;

                /* Mask reserved bits. */
                sts_entry->entry_status &=
                    IS_QLA24XX(ha) || IS_QLA25XX(ha) ? RF_MASK_24XX :RF_MASK;
        }

        return rval;
}

/*
 * qla2x00_abort_command
 *      Abort command aborts a specified IOCB.
 *
 * Input:
 *      ha = adapter block pointer.
 *      sp = SB structure pointer.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_abort_command(scsi_qla_host_t *ha, srb_t *sp)
{
        unsigned long   flags = 0;
        fc_port_t       *fcport;
        int             rval;
        uint32_t        handle;
        mbx_cmd_t       mc;
        mbx_cmd_t       *mcp = &mc;

        DEBUG11(printk("qla2x00_abort_command(%ld): entered.\n", ha->host_no);)

        fcport = sp->fcport;

        spin_lock_irqsave(&ha->hardware_lock, flags);
        for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) {
                if (ha->outstanding_cmds[handle] == sp)
                        break;
        }
        spin_unlock_irqrestore(&ha->hardware_lock, flags);

        if (handle == MAX_OUTSTANDING_COMMANDS) {
                /* command not found */
                return QLA_FUNCTION_FAILED;
        }

        mcp->mb[0] = MBC_ABORT_COMMAND;
        if (HAS_EXTENDED_IDS(ha))
                mcp->mb[1] = fcport->loop_id;
        else
                mcp->mb[1] = fcport->loop_id << 8;
        mcp->mb[2] = (uint16_t)handle;
        mcp->mb[3] = (uint16_t)(handle >> 16);
        mcp->mb[6] = (uint16_t)sp->cmd->device->lun;
        mcp->out_mb = MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->in_mb = MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("qla2x00_abort_command(%ld): failed=%x.\n",
                    ha->host_no, rval);)
        } else {
                sp->flags |= SRB_ABORT_PENDING;
                DEBUG11(printk("qla2x00_abort_command(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}

#if USE_ABORT_TGT
/*
 * qla2x00_abort_target
 *      Issue abort target mailbox command.
 *
 * Input:
 *      ha = adapter block pointer.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_abort_target(fc_port_t *fcport)
{
        int        rval;
        mbx_cmd_t  mc;
        mbx_cmd_t  *mcp = &mc;
        scsi_qla_host_t *ha;

        if (fcport == NULL)
                return 0;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, fcport->ha->host_no);)

        ha = fcport->ha;
        mcp->mb[0] = MBC_ABORT_TARGET;
        mcp->out_mb = MBX_2|MBX_1|MBX_0;
        if (HAS_EXTENDED_IDS(ha)) {
                mcp->mb[1] = fcport->loop_id;
                mcp->mb[10] = 0;
                mcp->out_mb |= MBX_10;
        } else {
                mcp->mb[1] = fcport->loop_id << 8;
        }
        mcp->mb[2] = ha->loop_reset_delay;

        mcp->in_mb = MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        /* Issue marker command. */
        ha->marker_needed = 1;

        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("qla2x00_abort_target(%ld): failed=%x.\n",
                    ha->host_no, rval);)
        } else {
                /*EMPTY*/
                DEBUG11(printk("qla2x00_abort_target(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}
#endif

/*
 * qla2x00_get_adapter_id
 *      Get adapter ID and topology.
 *
 * Input:
 *      ha = adapter block pointer.
 *      id = pointer for loop ID.
 *      al_pa = pointer for AL_PA.
 *      area = pointer for area.
 *      domain = pointer for domain.
 *      top = pointer for topology.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_get_adapter_id(scsi_qla_host_t *ha, uint16_t *id, uint8_t *al_pa,
    uint8_t *area, uint8_t *domain, uint16_t *top)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_get_adapter_id(%ld): entered.\n",
            ha->host_no);)

        mcp->mb[0] = MBC_GET_ADAPTER_LOOP_ID;
        mcp->out_mb = MBX_0;
        mcp->in_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);
        if (mcp->mb[0] == MBS_COMMAND_ERROR)
                rval = QLA_COMMAND_ERROR;

        /* Return data. */
        *id = mcp->mb[1];
        *al_pa = LSB(mcp->mb[2]);
        *area = MSB(mcp->mb[2]);
        *domain = LSB(mcp->mb[3]);
        *top = mcp->mb[6];

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("qla2x00_get_adapter_id(%ld): failed=%x.\n",
                    ha->host_no, rval);)
        } else {
                /*EMPTY*/
                DEBUG11(printk("qla2x00_get_adapter_id(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_get_retry_cnt
 *      Get current firmware login retry count and delay.
 *
 * Input:
 *      ha = adapter block pointer.
 *      retry_cnt = pointer to login retry count.
 *      tov = pointer to login timeout value.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_get_retry_cnt(scsi_qla_host_t *ha, uint8_t *retry_cnt, uint8_t *tov,
    uint16_t *r_a_tov)
{
        int rval;
        uint16_t ratov;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_get_retry_cnt(%ld): entered.\n",
                        ha->host_no);)

        mcp->mb[0] = MBC_GET_RETRY_COUNT;
        mcp->out_mb = MBX_0;
        mcp->in_mb = MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("qla2x00_get_retry_cnt(%ld): failed = %x.\n",
                    ha->host_no, mcp->mb[0]);)
        } else {
                /* Convert returned data and check our values. */
                *r_a_tov = mcp->mb[3] / 2;
                ratov = (mcp->mb[3]/2) / 10;  /* mb[3] value is in 100ms */
                if (mcp->mb[1] * ratov > (*retry_cnt) * (*tov)) {
                        /* Update to the larger values */
                        *retry_cnt = (uint8_t)mcp->mb[1];
                        *tov = ratov;
                }

                DEBUG11(printk("qla2x00_get_retry_cnt(%ld): done. mb3=%d "
                    "ratov=%d.\n", ha->host_no, mcp->mb[3], ratov);)
        }

        return rval;
}

/*
 * qla2x00_init_firmware
 *      Initialize adapter firmware.
 *
 * Input:
 *      ha = adapter block pointer.
 *      dptr = Initialization control block pointer.
 *      size = size of initialization control block.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_init_firmware(scsi_qla_host_t *ha, uint16_t size)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_init_firmware(%ld): entered.\n",
            ha->host_no);)

        mcp->mb[0] = MBC_INITIALIZE_FIRMWARE;
        mcp->mb[2] = MSW(ha->init_cb_dma);
        mcp->mb[3] = LSW(ha->init_cb_dma);
        mcp->mb[4] = 0;
        mcp->mb[5] = 0;
        mcp->mb[6] = MSW(MSD(ha->init_cb_dma));
        mcp->mb[7] = LSW(MSD(ha->init_cb_dma));
        mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_0;
        mcp->in_mb = MBX_5|MBX_4|MBX_0;
        mcp->buf_size = size;
        mcp->flags = MBX_DMA_OUT;
        mcp->tov = 30;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("qla2x00_init_firmware(%ld): failed=%x "
                    "mb0=%x.\n",
                    ha->host_no, rval, mcp->mb[0]);)
        } else {
                /*EMPTY*/
                DEBUG11(printk("qla2x00_init_firmware(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_get_port_database
 *      Issue normal/enhanced get port database mailbox command
 *      and copy device name as necessary.
 *
 * Input:
 *      ha = adapter state pointer.
 *      dev = structure pointer.
 *      opt = enhanced cmd option byte.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_get_port_database(scsi_qla_host_t *ha, fc_port_t *fcport, uint8_t opt)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;
        port_database_t *pd;
        struct port_database_24xx *pd24;
        dma_addr_t pd_dma;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no);)

        pd24 = NULL;
        pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma);
        if (pd  == NULL) {
                DEBUG2_3(printk("%s(%ld): failed to allocate Port Database "
                    "structure.\n", __func__, ha->host_no));
                return QLA_MEMORY_ALLOC_FAILED;
        }
        memset(pd, 0, max(PORT_DATABASE_SIZE, PORT_DATABASE_24XX_SIZE));

        mcp->mb[0] = MBC_GET_PORT_DATABASE;
        if (opt != 0 && !IS_QLA24XX(ha) && !IS_QLA25XX(ha))
                mcp->mb[0] = MBC_ENHANCED_GET_PORT_DATABASE;
        mcp->mb[2] = MSW(pd_dma);
        mcp->mb[3] = LSW(pd_dma);
        mcp->mb[6] = MSW(MSD(pd_dma));
        mcp->mb[7] = LSW(MSD(pd_dma));
        mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_0;
        mcp->in_mb = MBX_0;
        if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
                mcp->mb[1] = fcport->loop_id;
                mcp->mb[10] = opt;
                mcp->out_mb |= MBX_10|MBX_1;
                mcp->in_mb |= MBX_1;
        } else if (HAS_EXTENDED_IDS(ha)) {
                mcp->mb[1] = fcport->loop_id;
                mcp->mb[10] = opt;
                mcp->out_mb |= MBX_10|MBX_1;
        } else {
                mcp->mb[1] = fcport->loop_id << 8 | opt;
                mcp->out_mb |= MBX_1;
        }
        mcp->buf_size = (IS_QLA24XX(ha) || IS_QLA25XX(ha) ?
            PORT_DATABASE_24XX_SIZE : PORT_DATABASE_SIZE);
        mcp->flags = MBX_DMA_IN;
        mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2);
        rval = qla2x00_mailbox_command(ha, mcp);
        if (rval != QLA_SUCCESS)
                goto gpd_error_out;

        if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
                pd24 = (struct port_database_24xx *) pd;

                /* Check for logged in state. */
                if (pd24->current_login_state != PDS_PRLI_COMPLETE &&
                    pd24->last_login_state != PDS_PRLI_COMPLETE) {
                        DEBUG2(printk("%s(%ld): Unable to verify "
                            "login-state (%x/%x) for loop_id %x\n",
                            __func__, ha->host_no,
                            pd24->current_login_state,
                            pd24->last_login_state, fcport->loop_id));
                        rval = QLA_FUNCTION_FAILED;
                        goto gpd_error_out;
                }

                /* Names are little-endian. */
                memcpy(fcport->node_name, pd24->node_name, WWN_SIZE);
                memcpy(fcport->port_name, pd24->port_name, WWN_SIZE);

                /* Get port_id of device. */
                fcport->d_id.b.domain = pd24->port_id[0];
                fcport->d_id.b.area = pd24->port_id[1];
                fcport->d_id.b.al_pa = pd24->port_id[2];
                fcport->d_id.b.rsvd_1 = 0;

                /* If not target must be initiator or unknown type. */
                if ((pd24->prli_svc_param_word_3[0] & BIT_4) == 0)
                        fcport->port_type = FCT_INITIATOR;
                else
                        fcport->port_type = FCT_TARGET;
        } else {
                /* Check for logged in state. */
                if (pd->master_state != PD_STATE_PORT_LOGGED_IN &&
                    pd->slave_state != PD_STATE_PORT_LOGGED_IN) {
                        rval = QLA_FUNCTION_FAILED;
                        goto gpd_error_out;
                }

                /* Names are little-endian. */
                memcpy(fcport->node_name, pd->node_name, WWN_SIZE);
                memcpy(fcport->port_name, pd->port_name, WWN_SIZE);

                /* Get port_id of device. */
                fcport->d_id.b.domain = pd->port_id[0];
                fcport->d_id.b.area = pd->port_id[3];
                fcport->d_id.b.al_pa = pd->port_id[2];
                fcport->d_id.b.rsvd_1 = 0;

                /* Check for device require authentication. */
                pd->common_features & BIT_5 ? (fcport->flags |= FCF_AUTH_REQ) :
                    (fcport->flags &= ~FCF_AUTH_REQ);

                /* If not target must be initiator or unknown type. */
                if ((pd->prli_svc_param_word_3[0] & BIT_4) == 0)
                        fcport->port_type = FCT_INITIATOR;
                else
                        fcport->port_type = FCT_TARGET;

                /* Passback COS information. */
                fcport->supported_classes = (pd->options & BIT_4) ?
                    FC_COS_CLASS2: FC_COS_CLASS3;
        }

gpd_error_out:
        dma_pool_free(ha->s_dma_pool, pd, pd_dma);

        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed=%x mb[0]=%x mb[1]=%x.\n",
                    __func__, ha->host_no, rval, mcp->mb[0], mcp->mb[1]));
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
        }

        return rval;
}

/*
 * qla2x00_get_firmware_state
 *      Get adapter firmware state.
 *
 * Input:
 *      ha = adapter block pointer.
 *      dptr = pointer for firmware state.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_get_firmware_state(scsi_qla_host_t *ha, uint16_t *dptr)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_get_firmware_state(%ld): entered.\n",
            ha->host_no);)

        mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
        mcp->out_mb = MBX_0;
        mcp->in_mb = MBX_2|MBX_1|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        /* Return firmware state. */
        *dptr = mcp->mb[1];

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("qla2x00_get_firmware_state(%ld): "
                    "failed=%x.\n", ha->host_no, rval);)
        } else {
                /*EMPTY*/
                DEBUG11(printk("qla2x00_get_firmware_state(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_get_port_name
 *      Issue get port name mailbox command.
 *      Returned name is in big endian format.
 *
 * Input:
 *      ha = adapter block pointer.
 *      loop_id = loop ID of device.
 *      name = pointer for name.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_get_port_name(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t *name,
    uint8_t opt)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_get_port_name(%ld): entered.\n",
            ha->host_no);)

        mcp->mb[0] = MBC_GET_PORT_NAME;
        mcp->out_mb = MBX_1|MBX_0;
        if (HAS_EXTENDED_IDS(ha)) {
                mcp->mb[1] = loop_id;
                mcp->mb[10] = opt;
                mcp->out_mb |= MBX_10;
        } else {
                mcp->mb[1] = loop_id << 8 | opt;
        }

        mcp->in_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("qla2x00_get_port_name(%ld): failed=%x.\n",
                    ha->host_no, rval);)
        } else {
                if (name != NULL) {
                        /* This function returns name in big endian. */
                        name[0] = LSB(mcp->mb[2]);
                        name[1] = MSB(mcp->mb[2]);
                        name[2] = LSB(mcp->mb[3]);
                        name[3] = MSB(mcp->mb[3]);
                        name[4] = LSB(mcp->mb[6]);
                        name[5] = MSB(mcp->mb[6]);
                        name[6] = LSB(mcp->mb[7]);
                        name[7] = MSB(mcp->mb[7]);
                }

                DEBUG11(printk("qla2x00_get_port_name(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_lip_reset
 *      Issue LIP reset mailbox command.
 *
 * Input:
 *      ha = adapter block pointer.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_lip_reset(scsi_qla_host_t *ha)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no);)

        if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
                mcp->mb[0] = MBC_LIP_FULL_LOGIN;
                mcp->mb[1] = BIT_0;
                mcp->mb[2] = 0xff;
                mcp->mb[3] = 0;
                mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
        } else {
                mcp->mb[0] = MBC_LIP_RESET;
                mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
                if (HAS_EXTENDED_IDS(ha)) {
                        mcp->mb[1] = 0x00ff;
                        mcp->mb[10] = 0;
                        mcp->out_mb |= MBX_10;
                } else {
                        mcp->mb[1] = 0xff00;
                }
                mcp->mb[2] = ha->loop_reset_delay;
                mcp->mb[3] = 0;
        }
        mcp->in_mb = MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("%s(%ld): failed=%x.\n",
                    __func__, ha->host_no, rval);)
        } else {
                /*EMPTY*/
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_send_sns
 *      Send SNS command.
 *
 * Input:
 *      ha = adapter block pointer.
 *      sns = pointer for command.
 *      cmd_size = command size.
 *      buf_size = response/command size.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_send_sns(scsi_qla_host_t *ha, dma_addr_t sns_phys_address,
    uint16_t cmd_size, size_t buf_size)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_send_sns(%ld): entered.\n",
            ha->host_no);)

        DEBUG11(printk("qla2x00_send_sns: retry cnt=%d ratov=%d total "
            "tov=%d.\n", ha->retry_count, ha->login_timeout, mcp->tov);)

        mcp->mb[0] = MBC_SEND_SNS_COMMAND;
        mcp->mb[1] = cmd_size;
        mcp->mb[2] = MSW(sns_phys_address);
        mcp->mb[3] = LSW(sns_phys_address);
        mcp->mb[6] = MSW(MSD(sns_phys_address));
        mcp->mb[7] = LSW(MSD(sns_phys_address));
        mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->in_mb = MBX_0|MBX_1;
        mcp->buf_size = buf_size;
        mcp->flags = MBX_DMA_OUT|MBX_DMA_IN;
        mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2);
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG(printk("qla2x00_send_sns(%ld): failed=%x mb[0]=%x "
                    "mb[1]=%x.\n", ha->host_no, rval, mcp->mb[0], mcp->mb[1]);)
                DEBUG2_3_11(printk("qla2x00_send_sns(%ld): failed=%x mb[0]=%x "
                    "mb[1]=%x.\n", ha->host_no, rval, mcp->mb[0], mcp->mb[1]);)
        } else {
                /*EMPTY*/
                DEBUG11(printk("qla2x00_send_sns(%ld): done.\n", ha->host_no);)
        }

        return rval;
}

int
qla24xx_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain,
    uint8_t area, uint8_t al_pa, uint16_t *mb, uint8_t opt)
{
        int             rval;

        struct logio_entry_24xx *lg;
        dma_addr_t      lg_dma;
        uint32_t        iop[2];

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no);)

        lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &lg_dma);
        if (lg == NULL) {
                DEBUG2_3(printk("%s(%ld): failed to allocate Login IOCB.\n",
                    __func__, ha->host_no));
                return QLA_MEMORY_ALLOC_FAILED;
        }
        memset(lg, 0, sizeof(struct logio_entry_24xx));

        lg->entry_type = LOGINOUT_PORT_IOCB_TYPE;
        lg->entry_count = 1;
        lg->nport_handle = cpu_to_le16(loop_id);
        lg->control_flags = __constant_cpu_to_le16(LCF_COMMAND_PLOGI);
        if (opt & BIT_0)
                lg->control_flags |= __constant_cpu_to_le16(LCF_COND_PLOGI);
        lg->port_id[0] = al_pa;
        lg->port_id[1] = area;
        lg->port_id[2] = domain;
        rval = qla2x00_issue_iocb(ha, lg, lg_dma, 0);
        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed to issue Login IOCB "
                    "(%x).\n", __func__, ha->host_no, rval);)
        } else if (lg->entry_status != 0) {
                DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
                    "-- error status (%x).\n", __func__, ha->host_no,
                    lg->entry_status));
                rval = QLA_FUNCTION_FAILED;
        } else if (lg->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
                iop[0] = le32_to_cpu(lg->io_parameter[0]);
                iop[1] = le32_to_cpu(lg->io_parameter[1]);

                DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
                    "-- completion status (%x)  ioparam=%x/%x.\n", __func__,
                    ha->host_no, le16_to_cpu(lg->comp_status), iop[0],
                    iop[1]));

                switch (iop[0]) {
                case LSC_SCODE_PORTID_USED:
                        mb[0] = MBS_PORT_ID_USED;
                        mb[1] = LSW(iop[1]);
                        break;
                case LSC_SCODE_NPORT_USED:
                        mb[0] = MBS_LOOP_ID_USED;
                        break;
                case LSC_SCODE_NOLINK:
                case LSC_SCODE_NOIOCB:
                case LSC_SCODE_NOXCB:
                case LSC_SCODE_CMD_FAILED:
                case LSC_SCODE_NOFABRIC:
                case LSC_SCODE_FW_NOT_READY:
                case LSC_SCODE_NOT_LOGGED_IN:
                case LSC_SCODE_NOPCB:
                case LSC_SCODE_ELS_REJECT:
                case LSC_SCODE_CMD_PARAM_ERR:
                case LSC_SCODE_NONPORT:
                case LSC_SCODE_LOGGED_IN:
                case LSC_SCODE_NOFLOGI_ACC:
                default:
                        mb[0] = MBS_COMMAND_ERROR;
                        break;
                }
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no);)

                iop[0] = le32_to_cpu(lg->io_parameter[0]);

                mb[0] = MBS_COMMAND_COMPLETE;
                mb[1] = 0;
                if (iop[0] & BIT_4) {
                        if (iop[0] & BIT_8)
                                mb[1] |= BIT_1;
                } else
                        mb[1] = BIT_0;

                /* Passback COS information. */
                mb[10] = 0;
                if (lg->io_parameter[7] || lg->io_parameter[8])
                        mb[10] |= BIT_0;        /* Class 2. */
                if (lg->io_parameter[9] || lg->io_parameter[10])
                        mb[10] |= BIT_1;        /* Class 3. */
        }

        dma_pool_free(ha->s_dma_pool, lg, lg_dma);

        return rval;
}

/*
 * qla2x00_login_fabric
 *      Issue login fabric port mailbox command.
 *
 * Input:
 *      ha = adapter block pointer.
 *      loop_id = device loop ID.
 *      domain = device domain.
 *      area = device area.
 *      al_pa = device AL_PA.
 *      status = pointer for return status.
 *      opt = command options.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_login_fabric(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain,
    uint8_t area, uint8_t al_pa, uint16_t *mb, uint8_t opt)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_login_fabric(%ld): entered.\n", ha->host_no);)

        mcp->mb[0] = MBC_LOGIN_FABRIC_PORT;
        mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
        if (HAS_EXTENDED_IDS(ha)) {
                mcp->mb[1] = loop_id;
                mcp->mb[10] = opt;
                mcp->out_mb |= MBX_10;
        } else {
                mcp->mb[1] = (loop_id << 8) | opt;
        }
        mcp->mb[2] = domain;
        mcp->mb[3] = area << 8 | al_pa;

        mcp->in_mb = MBX_7|MBX_6|MBX_2|MBX_1|MBX_0;
        mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2);
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        /* Return mailbox statuses. */
        if (mb != NULL) {
                mb[0] = mcp->mb[0];
                mb[1] = mcp->mb[1];
                mb[2] = mcp->mb[2];
                mb[6] = mcp->mb[6];
                mb[7] = mcp->mb[7];
                /* COS retrieved from Get-Port-Database mailbox command. */
                mb[10] = 0;
        }

        if (rval != QLA_SUCCESS) {
                /* RLU tmp code: need to change main mailbox_command function to
                 * return ok even when the mailbox completion value is not
                 * SUCCESS. The caller needs to be responsible to interpret
                 * the return values of this mailbox command if we're not
                 * to change too much of the existing code.
                 */
                if (mcp->mb[0] == 0x4001 || mcp->mb[0] == 0x4002 ||
                    mcp->mb[0] == 0x4003 || mcp->mb[0] == 0x4005 ||
                    mcp->mb[0] == 0x4006)
                        rval = QLA_SUCCESS;

                /*EMPTY*/
                DEBUG2_3_11(printk("qla2x00_login_fabric(%ld): failed=%x "
                    "mb[0]=%x mb[1]=%x mb[2]=%x.\n", ha->host_no, rval,
                    mcp->mb[0], mcp->mb[1], mcp->mb[2]);)
        } else {
                /*EMPTY*/
                DEBUG11(printk("qla2x00_login_fabric(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_login_local_device
 *           Issue login loop port mailbox command.
 *
 * Input:
 *           ha = adapter block pointer.
 *           loop_id = device loop ID.
 *           opt = command options.
 *
 * Returns:
 *            Return status code.
 *
 * Context:
 *            Kernel context.
 *
 */
int
qla2x00_login_local_device(scsi_qla_host_t *ha, uint16_t loop_id,
    uint16_t *mb_ret, uint8_t opt)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG3(printk("%s(%ld): entered.\n", __func__, ha->host_no);)

        mcp->mb[0] = MBC_LOGIN_LOOP_PORT;
        if (HAS_EXTENDED_IDS(ha))
                mcp->mb[1] = loop_id;
        else
                mcp->mb[1] = loop_id << 8;
        mcp->mb[2] = opt;
        mcp->out_mb = MBX_2|MBX_1|MBX_0;
        mcp->in_mb = MBX_7|MBX_6|MBX_1|MBX_0;
        mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2);
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        /* Return mailbox statuses. */
        if (mb_ret != NULL) {
                mb_ret[0] = mcp->mb[0];
                mb_ret[1] = mcp->mb[1];
                mb_ret[6] = mcp->mb[6];
                mb_ret[7] = mcp->mb[7];
        }

        if (rval != QLA_SUCCESS) {
                /* AV tmp code: need to change main mailbox_command function to
                 * return ok even when the mailbox completion value is not
                 * SUCCESS. The caller needs to be responsible to interpret
                 * the return values of this mailbox command if we're not
                 * to change too much of the existing code.
                 */
                if (mcp->mb[0] == 0x4005 || mcp->mb[0] == 0x4006)
                        rval = QLA_SUCCESS;

                DEBUG(printk("%s(%ld): failed=%x mb[0]=%x mb[1]=%x "
                    "mb[6]=%x mb[7]=%x.\n", __func__, ha->host_no, rval,
                    mcp->mb[0], mcp->mb[1], mcp->mb[6], mcp->mb[7]);)
                DEBUG2_3(printk("%s(%ld): failed=%x mb[0]=%x mb[1]=%x "
                    "mb[6]=%x mb[7]=%x.\n", __func__, ha->host_no, rval,
                    mcp->mb[0], mcp->mb[1], mcp->mb[6], mcp->mb[7]);)
        } else {
                /*EMPTY*/
                DEBUG3(printk("%s(%ld): done.\n", __func__, ha->host_no);)
        }

        return (rval);
}

int
qla24xx_fabric_logout(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain,
    uint8_t area, uint8_t al_pa)
{
        int             rval;
        struct logio_entry_24xx *lg;
        dma_addr_t      lg_dma;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no);)

        lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &lg_dma);
        if (lg == NULL) {
                DEBUG2_3(printk("%s(%ld): failed to allocate Logout IOCB.\n",
                    __func__, ha->host_no));
                return QLA_MEMORY_ALLOC_FAILED;
        }
        memset(lg, 0, sizeof(struct logio_entry_24xx));

        lg->entry_type = LOGINOUT_PORT_IOCB_TYPE;
        lg->entry_count = 1;
        lg->nport_handle = cpu_to_le16(loop_id);
        lg->control_flags =
            __constant_cpu_to_le16(LCF_COMMAND_LOGO|LCF_EXPL_LOGO);
        lg->port_id[0] = al_pa;
        lg->port_id[1] = area;
        lg->port_id[2] = domain;
        rval = qla2x00_issue_iocb(ha, lg, lg_dma, 0);
        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed to issue Logout IOCB "
                    "(%x).\n", __func__, ha->host_no, rval);)
        } else if (lg->entry_status != 0) {
                DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
                    "-- error status (%x).\n", __func__, ha->host_no,
                    lg->entry_status));
                rval = QLA_FUNCTION_FAILED;
        } else if (lg->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
                DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
                    "-- completion status (%x)  ioparam=%x/%x.\n", __func__,
                    ha->host_no, le16_to_cpu(lg->comp_status),
                    le32_to_cpu(lg->io_parameter[0]),
                    le32_to_cpu(lg->io_parameter[1]));)
        } else {
                /*EMPTY*/
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no);)
        }

        dma_pool_free(ha->s_dma_pool, lg, lg_dma);

        return rval;
}

/*
 * qla2x00_fabric_logout
 *      Issue logout fabric port mailbox command.
 *
 * Input:
 *      ha = adapter block pointer.
 *      loop_id = device loop ID.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_fabric_logout(scsi_qla_host_t *ha, uint16_t loop_id, uint8_t domain,
    uint8_t area, uint8_t al_pa)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_fabric_logout(%ld): entered.\n",
            ha->host_no);)

        mcp->mb[0] = MBC_LOGOUT_FABRIC_PORT;
        mcp->out_mb = MBX_1|MBX_0;
        if (HAS_EXTENDED_IDS(ha)) {
                mcp->mb[1] = loop_id;
                mcp->mb[10] = 0;
                mcp->out_mb |= MBX_10;
        } else {
                mcp->mb[1] = loop_id << 8;
        }

        mcp->in_mb = MBX_1|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("qla2x00_fabric_logout(%ld): failed=%x "
                    "mbx1=%x.\n", ha->host_no, rval, mcp->mb[1]);)
        } else {
                /*EMPTY*/
                DEBUG11(printk("qla2x00_fabric_logout(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_full_login_lip
 *      Issue full login LIP mailbox command.
 *
 * Input:
 *      ha = adapter block pointer.
 *      TARGET_QUEUE_LOCK must be released.
 *      ADAPTER_STATE_LOCK must be released.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_full_login_lip(scsi_qla_host_t *ha)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_full_login_lip(%ld): entered.\n",
            ha->host_no);)

        mcp->mb[0] = MBC_LIP_FULL_LOGIN;
        mcp->mb[1] = 0;
        mcp->mb[2] = 0xff;
        mcp->mb[3] = 0;
        mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->in_mb = MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("qla2x00_full_login_lip(%ld): failed=%x.\n",
                    ha->host_no, rval);)
        } else {
                /*EMPTY*/
                DEBUG11(printk("qla2x00_full_login_lip(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_get_id_list
 *
 * Input:
 *      ha = adapter block pointer.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_get_id_list(scsi_qla_host_t *ha, void *id_list, dma_addr_t id_list_dma,
    uint16_t *entries)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("qla2x00_get_id_list(%ld): entered.\n",
            ha->host_no);)

        if (id_list == NULL)
                return QLA_FUNCTION_FAILED;

        mcp->mb[0] = MBC_GET_ID_LIST;
        mcp->out_mb = MBX_0;
        if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
                mcp->mb[2] = MSW(id_list_dma);
                mcp->mb[3] = LSW(id_list_dma);
                mcp->mb[6] = MSW(MSD(id_list_dma));
                mcp->mb[7] = LSW(MSD(id_list_dma));
                mcp->out_mb |= MBX_7|MBX_6|MBX_3|MBX_2;
        } else {
                mcp->mb[1] = MSW(id_list_dma);
                mcp->mb[2] = LSW(id_list_dma);
                mcp->mb[3] = MSW(MSD(id_list_dma));
                mcp->mb[6] = LSW(MSD(id_list_dma));
                mcp->out_mb |= MBX_6|MBX_3|MBX_2|MBX_1;
        }
        mcp->in_mb = MBX_1|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("qla2x00_get_id_list(%ld): failed=%x.\n",
                    ha->host_no, rval);)
        } else {
                *entries = mcp->mb[1];
                DEBUG11(printk("qla2x00_get_id_list(%ld): done.\n",
                    ha->host_no);)
        }

        return rval;
}

/*
 * qla2x00_get_resource_cnts
 *      Get current firmware resource counts.
 *
 * Input:
 *      ha = adapter block pointer.
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_get_resource_cnts(scsi_qla_host_t *ha, uint16_t *cur_xchg_cnt,
    uint16_t *orig_xchg_cnt, uint16_t *cur_iocb_cnt, uint16_t *orig_iocb_cnt)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));

        mcp->mb[0] = MBC_GET_RESOURCE_COUNTS;
        mcp->out_mb = MBX_0;
        mcp->in_mb = MBX_10|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("%s(%ld): failed = %x.\n", __func__,
                    ha->host_no, mcp->mb[0]);)
        } else {
                DEBUG11(printk("%s(%ld): done. mb1=%x mb2=%x mb3=%x mb6=%x "
                    "mb7=%x mb10=%x.\n", __func__, ha->host_no,
                    mcp->mb[1], mcp->mb[2], mcp->mb[3], mcp->mb[6], mcp->mb[7],
                    mcp->mb[10]));

                if (cur_xchg_cnt)
                        *cur_xchg_cnt = mcp->mb[3];
                if (orig_xchg_cnt)
                        *orig_xchg_cnt = mcp->mb[6];
                if (cur_iocb_cnt)
                        *cur_iocb_cnt = mcp->mb[7];
                if (orig_iocb_cnt)
                        *orig_iocb_cnt = mcp->mb[10];
        }

        return (rval);
}

#if defined(QL_DEBUG_LEVEL_3)
/*
 * qla2x00_get_fcal_position_map
 *      Get FCAL (LILP) position map using mailbox command
 *
 * Input:
 *      ha = adapter state pointer.
 *      pos_map = buffer pointer (can be NULL).
 *
 * Returns:
 *      qla2x00 local function return status code.
 *
 * Context:
 *      Kernel context.
 */
int
qla2x00_get_fcal_position_map(scsi_qla_host_t *ha, char *pos_map)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;
        char *pmap;
        dma_addr_t pmap_dma;

        pmap = dma_pool_alloc(ha->s_dma_pool, GFP_ATOMIC, &pmap_dma);
        if (pmap  == NULL) {
                DEBUG2_3_11(printk("%s(%ld): **** Mem Alloc Failed ****",
                    __func__, ha->host_no));
                return QLA_MEMORY_ALLOC_FAILED;
        }
        memset(pmap, 0, FCAL_MAP_SIZE);

        mcp->mb[0] = MBC_GET_FC_AL_POSITION_MAP;
        mcp->mb[2] = MSW(pmap_dma);
        mcp->mb[3] = LSW(pmap_dma);
        mcp->mb[6] = MSW(MSD(pmap_dma));
        mcp->mb[7] = LSW(MSD(pmap_dma));
        mcp->out_mb = MBX_7|MBX_6|MBX_3|MBX_2|MBX_0;
        mcp->in_mb = MBX_1|MBX_0;
        mcp->buf_size = FCAL_MAP_SIZE;
        mcp->flags = MBX_DMA_IN;
        mcp->tov = (ha->login_timeout * 2) + (ha->login_timeout / 2);
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval == QLA_SUCCESS) {
                DEBUG11(printk("%s(%ld): (mb0=%x/mb1=%x) FC/AL Position Map "
                    "size (%x)\n", __func__, ha->host_no, mcp->mb[0],
                    mcp->mb[1], (unsigned)pmap[0]));
                DEBUG11(qla2x00_dump_buffer(pmap, pmap[0] + 1));

                if (pos_map)
                        memcpy(pos_map, pmap, FCAL_MAP_SIZE);
        }
        dma_pool_free(ha->s_dma_pool, pmap, pmap_dma);

        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__,
                    ha->host_no, rval));
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
        }

        return rval;
}

uint8_t
qla24xx_get_isp_stats(scsi_qla_host_t *ha, uint32_t *dwbuf, uint32_t dwords,
    uint16_t *status)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;
        uint32_t *sbuf, *siter;
        dma_addr_t sbuf_dma;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no);)

        if (dwords > (DMA_POOL_SIZE / 4)) {
                DEBUG2_3_11(printk("%s(%ld): Unabled to retrieve %d DWORDs "
                    "(max %d).\n", __func__, ha->host_no, dwords,
                    DMA_POOL_SIZE / 4));
                return BIT_0;
        }
        sbuf = dma_pool_alloc(ha->s_dma_pool, GFP_ATOMIC, &sbuf_dma);
        if (sbuf == NULL) {
                DEBUG2_3_11(printk("%s(%ld): Failed to allocate memory.\n",
                    __func__, ha->host_no));
                return BIT_0;
        }
        memset(sbuf, 0, DMA_POOL_SIZE);

        mcp->mb[0] = MBC_GET_LINK_PRIV_STATS;
        mcp->mb[2] = MSW(sbuf_dma);
        mcp->mb[3] = LSW(sbuf_dma);
        mcp->mb[6] = MSW(MSD(sbuf_dma));
        mcp->mb[7] = LSW(MSD(sbuf_dma));
        mcp->mb[8] = dwords;
        mcp->mb[10] = 0;
        mcp->out_mb = MBX_10|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_0;
        mcp->in_mb = MBX_2|MBX_1|MBX_0;
        mcp->tov = 30;
        mcp->flags = IOCTL_CMD;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval == QLA_SUCCESS) {
                if (mcp->mb[0] != MBS_COMMAND_COMPLETE) {
                        DEBUG2_3_11(printk("%s(%ld): cmd failed. mbx0=%x.\n",
                            __func__, ha->host_no, mcp->mb[0]));
                        status[0] = mcp->mb[0];
                        rval = BIT_1;
                } else {
                        /* Copy over data -- firmware data is LE. */
                        siter = sbuf;
                        while (dwords--)
                                *dwbuf++ = le32_to_cpu(*siter++);
                }
        } else {
                /* Failed. */
                DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__,
                    ha->host_no, rval));
                rval = BIT_1;
        }

        dma_pool_free(ha->s_dma_pool, sbuf, sbuf_dma);

        return rval;
}
#endif

int
qla24xx_abort_command(scsi_qla_host_t *ha, srb_t *sp)
{
        int             rval;
        fc_port_t       *fcport;
        unsigned long   flags = 0;

        struct abort_entry_24xx *abt;
        dma_addr_t      abt_dma;
        uint32_t        handle;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no);)

        fcport = sp->fcport;

        spin_lock_irqsave(&ha->hardware_lock, flags);
        for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) {
                if (ha->outstanding_cmds[handle] == sp)
                        break;
        }
        spin_unlock_irqrestore(&ha->hardware_lock, flags);
        if (handle == MAX_OUTSTANDING_COMMANDS) {
                /* Command not found. */
                return QLA_FUNCTION_FAILED;
        }

        abt = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &abt_dma);
        if (abt == NULL) {
                DEBUG2_3(printk("%s(%ld): failed to allocate Abort IOCB.\n",
                    __func__, ha->host_no));
                return QLA_MEMORY_ALLOC_FAILED;
        }
        memset(abt, 0, sizeof(struct abort_entry_24xx));

        abt->entry_type = ABORT_IOCB_TYPE;
        abt->entry_count = 1;
        abt->nport_handle = cpu_to_le16(fcport->loop_id);
        abt->handle_to_abort = handle;
        abt->port_id[0] = fcport->d_id.b.al_pa;
        abt->port_id[1] = fcport->d_id.b.area;
        abt->port_id[2] = fcport->d_id.b.domain;
        rval = qla2x00_issue_iocb(ha, abt, abt_dma, 0);
        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed to issue IOCB (%x).\n",
                    __func__, ha->host_no, rval);)
        } else if (abt->entry_status != 0) {
                DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
                    "-- error status (%x).\n", __func__, ha->host_no,
                    abt->entry_status));
                rval = QLA_FUNCTION_FAILED;
        } else if (abt->nport_handle != __constant_cpu_to_le16(0)) {
                DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
                    "-- completion status (%x).\n", __func__, ha->host_no,
                    le16_to_cpu(abt->nport_handle));)
                rval = QLA_FUNCTION_FAILED;
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no);)
                sp->flags |= SRB_ABORT_PENDING;
        }

        dma_pool_free(ha->s_dma_pool, abt, abt_dma);

        return rval;
}

struct tsk_mgmt_cmd {
        union {
                struct tsk_mgmt_entry tsk;
                struct sts_entry_24xx sts;
        } p;
};

int
qla24xx_abort_target(fc_port_t *fcport)
{
        int             rval;
        struct tsk_mgmt_cmd *tsk;
        dma_addr_t      tsk_dma;
        scsi_qla_host_t *ha;

        if (fcport == NULL)
                return 0;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, fcport->ha->host_no);)

        ha = fcport->ha;
        tsk = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &tsk_dma);
        if (tsk == NULL) {
                DEBUG2_3(printk("%s(%ld): failed to allocate Task Management "
                    "IOCB.\n", __func__, ha->host_no));
                return QLA_MEMORY_ALLOC_FAILED;
        }
        memset(tsk, 0, sizeof(struct tsk_mgmt_cmd));

        tsk->p.tsk.entry_type = TSK_MGMT_IOCB_TYPE;
        tsk->p.tsk.entry_count = 1;
        tsk->p.tsk.nport_handle = cpu_to_le16(fcport->loop_id);
        tsk->p.tsk.timeout = __constant_cpu_to_le16(25);
        tsk->p.tsk.control_flags = __constant_cpu_to_le32(TCF_TARGET_RESET);
        tsk->p.tsk.port_id[0] = fcport->d_id.b.al_pa;
        tsk->p.tsk.port_id[1] = fcport->d_id.b.area;
        tsk->p.tsk.port_id[2] = fcport->d_id.b.domain;
        rval = qla2x00_issue_iocb(ha, tsk, tsk_dma, 0);
        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed to issue Target Reset IOCB "
                    "(%x).\n", __func__, ha->host_no, rval);)
                goto atarget_done;
        } else if (tsk->p.sts.entry_status != 0) {
                DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
                    "-- error status (%x).\n", __func__, ha->host_no,
                    tsk->p.sts.entry_status));
                rval = QLA_FUNCTION_FAILED;
                goto atarget_done;
        } else if (tsk->p.sts.comp_status !=
            __constant_cpu_to_le16(CS_COMPLETE)) {
                DEBUG2_3_11(printk("%s(%ld): failed to complete IOCB "
                    "-- completion status (%x).\n", __func__,
                    ha->host_no, le16_to_cpu(tsk->p.sts.comp_status));)
                rval = QLA_FUNCTION_FAILED;
                goto atarget_done;
        }

        /* Issue marker IOCB. */
        rval = qla2x00_marker(ha, fcport->loop_id, 0, MK_SYNC_ID);
        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed to issue Marker IOCB "
                    "(%x).\n", __func__, ha->host_no, rval);)
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no);)
        }

atarget_done:
        dma_pool_free(ha->s_dma_pool, tsk, tsk_dma);

        return rval;
}

int
qla2x00_system_error(scsi_qla_host_t *ha)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha))
                return QLA_FUNCTION_FAILED;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));

        mcp->mb[0] = MBC_GEN_SYSTEM_ERROR;
        mcp->out_mb = MBX_0;
        mcp->in_mb = MBX_0;
        mcp->tov = 5;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__,
                    ha->host_no, rval));
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
        }

        return rval;
}

/**
 * qla2x00_get_serdes_params() -
 * @ha: HA context
 *
 * Returns
 */
int
qla2x00_get_serdes_params(scsi_qla_host_t *ha, uint16_t *sw_em_1g,
    uint16_t *sw_em_2g, uint16_t *sw_em_4g)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));

        mcp->mb[0] = MBC_SERDES_PARAMS;
        mcp->mb[1] = 0;
        mcp->out_mb = MBX_1|MBX_0;
        mcp->in_mb = MBX_4|MBX_3|MBX_2|MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("%s(%ld): failed=%x (%x).\n", __func__,
                    ha->host_no, rval, mcp->mb[0]));
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));

                if (sw_em_1g)
                        *sw_em_1g = mcp->mb[2];
                if (sw_em_2g)
                        *sw_em_2g = mcp->mb[3];
                if (sw_em_4g)
                        *sw_em_4g = mcp->mb[4];
        }

        return rval;
}

/**
 * qla2x00_set_serdes_params() -
 * @ha: HA context
 *
 * Returns
 */
int
qla2x00_set_serdes_params(scsi_qla_host_t *ha, uint16_t sw_em_1g,
    uint16_t sw_em_2g, uint16_t sw_em_4g)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));

        mcp->mb[0] = MBC_SERDES_PARAMS;
        mcp->mb[1] = BIT_0;
        mcp->mb[2] = sw_em_1g;
        mcp->mb[3] = sw_em_2g;
        mcp->mb[4] = sw_em_4g;
        mcp->out_mb = MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
        mcp->in_mb = MBX_0;
        mcp->tov = 30;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                /*EMPTY*/
                DEBUG2_3_11(printk("%s(%ld): failed=%x (%x).\n", __func__,
                    ha->host_no, rval, mcp->mb[0]));
        } else {
                /*EMPTY*/
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
        }

        return rval;
}

int
qla2x00_stop_firmware(scsi_qla_host_t *ha)
{
        int rval;
        mbx_cmd_t mc;
        mbx_cmd_t *mcp = &mc;

        if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha))
                return QLA_FUNCTION_FAILED;

        DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));

        mcp->mb[0] = MBC_STOP_FIRMWARE;
        mcp->out_mb = MBX_0;
        mcp->in_mb = MBX_0;
        mcp->tov = 5;
        mcp->flags = 0;
        rval = qla2x00_mailbox_command(ha, mcp);

        if (rval != QLA_SUCCESS) {
                DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__,
                    ha->host_no, rval));
        } else {
                DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
        }

        return rval;
}