aic94xx_tmf.c

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/*
 * Aic94xx Task Management Functions
 *
 * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
 * Copyright (C) 2005 Luben Tuikov <[email protected]>
 *
 * This file is licensed under GPLv2.
 *
 * This file is part of the aic94xx driver.
 *
 * The aic94xx driver is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; version 2 of the
 * License.
 *
 * The aic94xx driver 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with the aic94xx driver; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#include <linux/spinlock.h>
#include <linux/gfp.h>
#include "aic94xx.h"
#include "aic94xx_sas.h"
#include "aic94xx_hwi.h"

/* ---------- Internal enqueue ---------- */

static int asd_enqueue_internal(struct asd_ascb *ascb,
        void (*tasklet_complete)(struct asd_ascb *,
                     struct done_list_struct *),
                void (*timed_out)(unsigned long))
{
    int res;

    ascb->tasklet_complete = tasklet_complete;
    ascb->uldd_timer = 1;

    ascb->timer.data = (unsigned long) ascb;
    ascb->timer.function = timed_out;
    ascb->timer.expires = jiffies + AIC94XX_SCB_TIMEOUT;

    add_timer(&ascb->timer);

    res = asd_post_ascb_list(ascb->ha, ascb, 1);
    if (unlikely(res))
        del_timer(&ascb->timer);
    return res;
}

/* ---------- CLEAR NEXUS ---------- */

struct tasklet_completion_status {
    int dl_opcode;
    int tmf_state;
    u8  tag_valid:1;
    __be16  tag;
};

#define DECLARE_TCS(tcs) \
    struct tasklet_completion_status tcs = { \
        .dl_opcode = 0, \
        .tmf_state = 0, \
        .tag_valid = 0, \
        .tag = 0, \
    }


static void asd_clear_nexus_tasklet_complete(struct asd_ascb *ascb,
                         struct done_list_struct *dl)
{
    struct tasklet_completion_status *tcs = ascb->uldd_task;
    ASD_DPRINTK("%s: here\n", __func__);
    if (!del_timer(&ascb->timer)) {
        ASD_DPRINTK("%s: couldn't delete timer\n", __func__);
        return;
    }
    ASD_DPRINTK("%s: opcode: 0x%x\n", __func__, dl->opcode);
    tcs->dl_opcode = dl->opcode;
    complete(ascb->completion);
    asd_ascb_free(ascb);
}

static void asd_clear_nexus_timedout(unsigned long data)
{
    struct asd_ascb *ascb = (void *)data;
    struct tasklet_completion_status *tcs = ascb->uldd_task;

    ASD_DPRINTK("%s: here\n", __func__);
    tcs->dl_opcode = TMF_RESP_FUNC_FAILED;
    complete(ascb->completion);
}

#define CLEAR_NEXUS_PRE         \
    struct asd_ascb *ascb; \
    struct scb *scb; \
    int res; \
    DECLARE_COMPLETION_ONSTACK(completion); \
    DECLARE_TCS(tcs); \
        \
    ASD_DPRINTK("%s: PRE\n", __func__); \
        res = 1;                \
    ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL); \
    if (!ascb)              \
        return -ENOMEM; \
                                \
    ascb->completion = &completion; \
    ascb->uldd_task = &tcs; \
    scb = ascb->scb;        \
    scb->header.opcode = CLEAR_NEXUS

#define CLEAR_NEXUS_POST        \
    ASD_DPRINTK("%s: POST\n", __func__); \
    res = asd_enqueue_internal(ascb, asd_clear_nexus_tasklet_complete, \
                   asd_clear_nexus_timedout);              \
    if (res)                \
        goto out_err;   \
    ASD_DPRINTK("%s: clear nexus posted, waiting...\n", __func__); \
    wait_for_completion(&completion); \
    res = tcs.dl_opcode; \
    if (res == TC_NO_ERROR) \
        res = TMF_RESP_FUNC_COMPLETE;   \
    return res; \
out_err:                        \
    asd_ascb_free(ascb);    \
    return res

int asd_clear_nexus_ha(struct sas_ha_struct *sas_ha)
{
    struct asd_ha_struct *asd_ha = sas_ha->lldd_ha;

    CLEAR_NEXUS_PRE;
    scb->clear_nexus.nexus = NEXUS_ADAPTER;
    CLEAR_NEXUS_POST;
}

int asd_clear_nexus_port(struct asd_sas_port *port)
{
    struct asd_ha_struct *asd_ha = port->ha->lldd_ha;

    CLEAR_NEXUS_PRE;
    scb->clear_nexus.nexus = NEXUS_PORT;
    scb->clear_nexus.conn_mask = port->phy_mask;
    CLEAR_NEXUS_POST;
}

enum clear_nexus_phase {
    NEXUS_PHASE_PRE,
    NEXUS_PHASE_POST,
    NEXUS_PHASE_RESUME,
};

static int asd_clear_nexus_I_T(struct domain_device *dev,
                   enum clear_nexus_phase phase)
{
    struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;

    CLEAR_NEXUS_PRE;
    scb->clear_nexus.nexus = NEXUS_I_T;
    switch (phase) {
    case NEXUS_PHASE_PRE:
        scb->clear_nexus.flags = EXEC_Q | SUSPEND_TX;
        break;
    case NEXUS_PHASE_POST:
        scb->clear_nexus.flags = SEND_Q | NOTINQ;
        break;
    case NEXUS_PHASE_RESUME:
        scb->clear_nexus.flags = RESUME_TX;
    }
    scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long)
                           dev->lldd_dev);
    CLEAR_NEXUS_POST;
}

int asd_I_T_nexus_reset(struct domain_device *dev)
{
    int res, tmp_res, i;
    struct sas_phy *phy = sas_get_local_phy(dev);
    /* Standard mandates link reset for ATA  (type 0) and
     * hard reset for SSP (type 1) */
    int reset_type = (dev->dev_type == SATA_DEV ||
              (dev->tproto & SAS_PROTOCOL_STP)) ? 0 : 1;

    asd_clear_nexus_I_T(dev, NEXUS_PHASE_PRE);
    /* send a hard reset */
    ASD_DPRINTK("sending %s reset to %s\n",
            reset_type ? "hard" : "soft", dev_name(&phy->dev));
    res = sas_phy_reset(phy, reset_type);
    if (res == TMF_RESP_FUNC_COMPLETE || res == -ENODEV) {
        /* wait for the maximum settle time */
        msleep(500);
        /* clear all outstanding commands (keep nexus suspended) */
        asd_clear_nexus_I_T(dev, NEXUS_PHASE_POST);
    }
    for (i = 0 ; i < 3; i++) {
        tmp_res = asd_clear_nexus_I_T(dev, NEXUS_PHASE_RESUME);
        if (tmp_res == TC_RESUME)
            goto out;
        msleep(500);
    }

    /* This is a bit of a problem:  the sequencer is still suspended
     * and is refusing to resume.  Hope it will resume on a bigger hammer
     * or the disk is lost */
    dev_printk(KERN_ERR, &phy->dev,
           "Failed to resume nexus after reset 0x%x\n", tmp_res);

    res = TMF_RESP_FUNC_FAILED;
 out:
    sas_put_local_phy(phy);
    return res;
}

static int asd_clear_nexus_I_T_L(struct domain_device *dev, u8 *lun)
{
    struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;

    CLEAR_NEXUS_PRE;
    scb->clear_nexus.nexus = NEXUS_I_T_L;
    scb->clear_nexus.flags = SEND_Q | EXEC_Q | NOTINQ;
    memcpy(scb->clear_nexus.ssp_task.lun, lun, 8);
    scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long)
                           dev->lldd_dev);
    CLEAR_NEXUS_POST;
}

static int asd_clear_nexus_tag(struct sas_task *task)
{
    struct asd_ha_struct *asd_ha = task->dev->port->ha->lldd_ha;
    struct asd_ascb *tascb = task->lldd_task;

    CLEAR_NEXUS_PRE;
    scb->clear_nexus.nexus = NEXUS_TAG;
    memcpy(scb->clear_nexus.ssp_task.lun, task->ssp_task.LUN, 8);
    scb->clear_nexus.ssp_task.tag = tascb->tag;
    if (task->dev->tproto)
        scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long)
                              task->dev->lldd_dev);
    CLEAR_NEXUS_POST;
}

static int asd_clear_nexus_index(struct sas_task *task)
{
    struct asd_ha_struct *asd_ha = task->dev->port->ha->lldd_ha;
    struct asd_ascb *tascb = task->lldd_task;

    CLEAR_NEXUS_PRE;
    scb->clear_nexus.nexus = NEXUS_TRANS_CX;
    if (task->dev->tproto)
        scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long)
                              task->dev->lldd_dev);
    scb->clear_nexus.index = cpu_to_le16(tascb->tc_index);
    CLEAR_NEXUS_POST;
}

/* ---------- TMFs ---------- */

static void asd_tmf_timedout(unsigned long data)
{
    struct asd_ascb *ascb = (void *) data;
    struct tasklet_completion_status *tcs = ascb->uldd_task;

    ASD_DPRINTK("tmf timed out\n");
    tcs->tmf_state = TMF_RESP_FUNC_FAILED;
    complete(ascb->completion);
}

static int asd_get_tmf_resp_tasklet(struct asd_ascb *ascb,
                    struct done_list_struct *dl)
{
    struct asd_ha_struct *asd_ha = ascb->ha;
    unsigned long flags;
    struct tc_resp_sb_struct {
        __le16 index_escb;
        u8     len_lsb;
        u8     flags;
    } __attribute__ ((packed)) *resp_sb = (void *) dl->status_block;

    int  edb_id = ((resp_sb->flags & 0x70) >> 4)-1;
    struct asd_ascb *escb;
    struct asd_dma_tok *edb;
    struct ssp_frame_hdr *fh;
    struct ssp_response_iu   *ru;
    int res = TMF_RESP_FUNC_FAILED;

    ASD_DPRINTK("tmf resp tasklet\n");

    spin_lock_irqsave(&asd_ha->seq.tc_index_lock, flags);
    escb = asd_tc_index_find(&asd_ha->seq,
                 (int)le16_to_cpu(resp_sb->index_escb));
    spin_unlock_irqrestore(&asd_ha->seq.tc_index_lock, flags);

    if (!escb) {
        ASD_DPRINTK("Uh-oh! No escb for this dl?!\n");
        return res;
    }

    edb = asd_ha->seq.edb_arr[edb_id + escb->edb_index];
    ascb->tag = *(__be16 *)(edb->vaddr+4);
    fh = edb->vaddr + 16;
    ru = edb->vaddr + 16 + sizeof(*fh);
    res = ru->status;
    if (ru->datapres == 1)    /* Response data present */
        res = ru->resp_data[3];
#if 0
    ascb->tag = fh->tag;
#endif
    ascb->tag_valid = 1;

    asd_invalidate_edb(escb, edb_id);
    return res;
}

static void asd_tmf_tasklet_complete(struct asd_ascb *ascb,
                     struct done_list_struct *dl)
{
    struct tasklet_completion_status *tcs;

    if (!del_timer(&ascb->timer))
        return;

    tcs = ascb->uldd_task;
    ASD_DPRINTK("tmf tasklet complete\n");

    tcs->dl_opcode = dl->opcode;

    if (dl->opcode == TC_SSP_RESP) {
        tcs->tmf_state = asd_get_tmf_resp_tasklet(ascb, dl);
        tcs->tag_valid = ascb->tag_valid;
        tcs->tag = ascb->tag;
    }

    complete(ascb->completion);
    asd_ascb_free(ascb);
}

static int asd_clear_nexus(struct sas_task *task)
{
    int res = TMF_RESP_FUNC_FAILED;
    int leftover;
    struct asd_ascb *tascb = task->lldd_task;
    DECLARE_COMPLETION_ONSTACK(completion);
    unsigned long flags;

    tascb->completion = &completion;

    ASD_DPRINTK("task not done, clearing nexus\n");
    if (tascb->tag_valid)
        res = asd_clear_nexus_tag(task);
    else
        res = asd_clear_nexus_index(task);
    leftover = wait_for_completion_timeout(&completion,
                           AIC94XX_SCB_TIMEOUT);
    tascb->completion = NULL;
    ASD_DPRINTK("came back from clear nexus\n");
    spin_lock_irqsave(&task->task_state_lock, flags);
    if (leftover < 1)
        res = TMF_RESP_FUNC_FAILED;
    if (task->task_state_flags & SAS_TASK_STATE_DONE)
        res = TMF_RESP_FUNC_COMPLETE;
    spin_unlock_irqrestore(&task->task_state_lock, flags);

    return res;
}

int asd_abort_task(struct sas_task *task)
{
    struct asd_ascb *tascb = task->lldd_task;
    struct asd_ha_struct *asd_ha = tascb->ha;
    int res = 1;
    unsigned long flags;
    struct asd_ascb *ascb = NULL;
    struct scb *scb;
    int leftover;
    DECLARE_TCS(tcs);
    DECLARE_COMPLETION_ONSTACK(completion);
    DECLARE_COMPLETION_ONSTACK(tascb_completion);

    tascb->completion = &tascb_completion;

    spin_lock_irqsave(&task->task_state_lock, flags);
    if (task->task_state_flags & SAS_TASK_STATE_DONE) {
        spin_unlock_irqrestore(&task->task_state_lock, flags);
        res = TMF_RESP_FUNC_COMPLETE;
        ASD_DPRINTK("%s: task 0x%p done\n", __func__, task);
        goto out_done;
    }
    spin_unlock_irqrestore(&task->task_state_lock, flags);

    ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL);
    if (!ascb)
        return -ENOMEM;

    ascb->uldd_task = &tcs;
    ascb->completion = &completion;
    scb = ascb->scb;
    scb->header.opcode = SCB_ABORT_TASK;

    switch (task->task_proto) {
    case SAS_PROTOCOL_SATA:
    case SAS_PROTOCOL_STP:
        scb->abort_task.proto_conn_rate = (1 << 5); /* STP */
        break;
    case SAS_PROTOCOL_SSP:
        scb->abort_task.proto_conn_rate  = (1 << 4); /* SSP */
        scb->abort_task.proto_conn_rate |= task->dev->linkrate;
        break;
    case SAS_PROTOCOL_SMP:
        break;
    default:
        break;
    }

    if (task->task_proto == SAS_PROTOCOL_SSP) {
        scb->abort_task.ssp_frame.frame_type = SSP_TASK;
        memcpy(scb->abort_task.ssp_frame.hashed_dest_addr,
               task->dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
        memcpy(scb->abort_task.ssp_frame.hashed_src_addr,
               task->dev->port->ha->hashed_sas_addr,
               HASHED_SAS_ADDR_SIZE);
        scb->abort_task.ssp_frame.tptt = cpu_to_be16(0xFFFF);

        memcpy(scb->abort_task.ssp_task.lun, task->ssp_task.LUN, 8);
        scb->abort_task.ssp_task.tmf = TMF_ABORT_TASK;
        scb->abort_task.ssp_task.tag = cpu_to_be16(0xFFFF);
    }

    scb->abort_task.sister_scb = cpu_to_le16(0xFFFF);
    scb->abort_task.conn_handle = cpu_to_le16(
        (u16)(unsigned long)task->dev->lldd_dev);
    scb->abort_task.retry_count = 1;
    scb->abort_task.index = cpu_to_le16((u16)tascb->tc_index);
    scb->abort_task.itnl_to = cpu_to_le16(ITNL_TIMEOUT_CONST);

    res = asd_enqueue_internal(ascb, asd_tmf_tasklet_complete,
                   asd_tmf_timedout);
    if (res)
        goto out_free;
    wait_for_completion(&completion);
    ASD_DPRINTK("tmf came back\n");

    tascb->tag = tcs.tag;
    tascb->tag_valid = tcs.tag_valid;

    spin_lock_irqsave(&task->task_state_lock, flags);
    if (task->task_state_flags & SAS_TASK_STATE_DONE) {
        spin_unlock_irqrestore(&task->task_state_lock, flags);
        res = TMF_RESP_FUNC_COMPLETE;
        ASD_DPRINTK("%s: task 0x%p done\n", __func__, task);
        goto out_done;
    }
    spin_unlock_irqrestore(&task->task_state_lock, flags);

    if (tcs.dl_opcode == TC_SSP_RESP) {
        /* The task to be aborted has been sent to the device.
         * We got a Response IU for the ABORT TASK TMF. */
        if (tcs.tmf_state == TMF_RESP_FUNC_COMPLETE)
            res = asd_clear_nexus(task);
        else
            res = tcs.tmf_state;
    } else if (tcs.dl_opcode == TC_NO_ERROR &&
           tcs.tmf_state == TMF_RESP_FUNC_FAILED) {
        /* timeout */
        res = TMF_RESP_FUNC_FAILED;
    } else {
        /* In the following we assume that the managing layer
         * will _never_ make a mistake, when issuing ABORT
         * TASK.
         */
        switch (tcs.dl_opcode) {
        default:
            res = asd_clear_nexus(task);
            /* fallthrough */
        case TC_NO_ERROR:
            break;
            /* The task hasn't been sent to the device xor
             * we never got a (sane) Response IU for the
             * ABORT TASK TMF.
             */
        case TF_NAK_RECV:
            res = TMF_RESP_INVALID_FRAME;
            break;
        case TF_TMF_TASK_DONE:  /* done but not reported yet */
            res = TMF_RESP_FUNC_FAILED;
            leftover =
                wait_for_completion_timeout(&tascb_completion,
                              AIC94XX_SCB_TIMEOUT);
            spin_lock_irqsave(&task->task_state_lock, flags);
            if (leftover < 1)
                res = TMF_RESP_FUNC_FAILED;
            if (task->task_state_flags & SAS_TASK_STATE_DONE)
                res = TMF_RESP_FUNC_COMPLETE;
            spin_unlock_irqrestore(&task->task_state_lock, flags);
            break;
        case TF_TMF_NO_TAG:
        case TF_TMF_TAG_FREE: /* the tag is in the free list */
        case TF_TMF_NO_CONN_HANDLE: /* no such device */
            res = TMF_RESP_FUNC_COMPLETE;
            break;
        case TF_TMF_NO_CTX: /* not in seq, or proto != SSP */
            res = TMF_RESP_FUNC_ESUPP;
            break;
        }
    }
 out_done:
    tascb->completion = NULL;
    if (res == TMF_RESP_FUNC_COMPLETE) {
        task->lldd_task = NULL;
        mb();
        asd_ascb_free(tascb);
    }
    ASD_DPRINTK("task 0x%p aborted, res: 0x%x\n", task, res);
    return res;

 out_free:
    asd_ascb_free(ascb);
    ASD_DPRINTK("task 0x%p aborted, res: 0x%x\n", task, res);
    return res;
}

static int asd_initiate_ssp_tmf(struct domain_device *dev, u8 *lun,
                int tmf, int index)
{
    struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
    struct asd_ascb *ascb;
    int res = 1;
    struct scb *scb;
    DECLARE_COMPLETION_ONSTACK(completion);
    DECLARE_TCS(tcs);

    if (!(dev->tproto & SAS_PROTOCOL_SSP))
        return TMF_RESP_FUNC_ESUPP;

    ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL);
    if (!ascb)
        return -ENOMEM;

    ascb->completion = &completion;
    ascb->uldd_task = &tcs;
    scb = ascb->scb;

    if (tmf == TMF_QUERY_TASK)
        scb->header.opcode = QUERY_SSP_TASK;
    else
        scb->header.opcode = INITIATE_SSP_TMF;

    scb->ssp_tmf.proto_conn_rate  = (1 << 4); /* SSP */
    scb->ssp_tmf.proto_conn_rate |= dev->linkrate;
    /* SSP frame header */
    scb->ssp_tmf.ssp_frame.frame_type = SSP_TASK;
    memcpy(scb->ssp_tmf.ssp_frame.hashed_dest_addr,
           dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
    memcpy(scb->ssp_tmf.ssp_frame.hashed_src_addr,
           dev->port->ha->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
    scb->ssp_tmf.ssp_frame.tptt = cpu_to_be16(0xFFFF);
    /* SSP Task IU */
    memcpy(scb->ssp_tmf.ssp_task.lun, lun, 8);
    scb->ssp_tmf.ssp_task.tmf = tmf;

    scb->ssp_tmf.sister_scb = cpu_to_le16(0xFFFF);
    scb->ssp_tmf.conn_handle= cpu_to_le16((u16)(unsigned long)
                          dev->lldd_dev);
    scb->ssp_tmf.retry_count = 1;
    scb->ssp_tmf.itnl_to = cpu_to_le16(ITNL_TIMEOUT_CONST);
    if (tmf == TMF_QUERY_TASK)
        scb->ssp_tmf.index = cpu_to_le16(index);

    res = asd_enqueue_internal(ascb, asd_tmf_tasklet_complete,
                   asd_tmf_timedout);
    if (res)
        goto out_err;
    wait_for_completion(&completion);

    switch (tcs.dl_opcode) {
    case TC_NO_ERROR:
        res = TMF_RESP_FUNC_COMPLETE;
        break;
    case TF_NAK_RECV:
        res = TMF_RESP_INVALID_FRAME;
        break;
    case TF_TMF_TASK_DONE:
        res = TMF_RESP_FUNC_FAILED;
        break;
    case TF_TMF_NO_TAG:
    case TF_TMF_TAG_FREE: /* the tag is in the free list */
    case TF_TMF_NO_CONN_HANDLE: /* no such device */
        res = TMF_RESP_FUNC_COMPLETE;
        break;
    case TF_TMF_NO_CTX: /* not in seq, or proto != SSP */
        res = TMF_RESP_FUNC_ESUPP;
        break;
    default:
        /* Allow TMF response codes to propagate upwards */
        res = tcs.dl_opcode;
        break;
    }
    return res;
out_err:
    asd_ascb_free(ascb);
    return res;
}

int asd_abort_task_set(struct domain_device *dev, u8 *lun)
{
    int res = asd_initiate_ssp_tmf(dev, lun, TMF_ABORT_TASK_SET, 0);

    if (res == TMF_RESP_FUNC_COMPLETE)
        asd_clear_nexus_I_T_L(dev, lun);
    return res;
}

int asd_clear_aca(struct domain_device *dev, u8 *lun)
{
    int res = asd_initiate_ssp_tmf(dev, lun, TMF_CLEAR_ACA, 0);

    if (res == TMF_RESP_FUNC_COMPLETE)
        asd_clear_nexus_I_T_L(dev, lun);
    return res;
}

int asd_clear_task_set(struct domain_device *dev, u8 *lun)
{
    int res = asd_initiate_ssp_tmf(dev, lun, TMF_CLEAR_TASK_SET, 0);

    if (res == TMF_RESP_FUNC_COMPLETE)
        asd_clear_nexus_I_T_L(dev, lun);
    return res;
}

int asd_lu_reset(struct domain_device *dev, u8 *lun)
{
    int res = asd_initiate_ssp_tmf(dev, lun, TMF_LU_RESET, 0);

    if (res == TMF_RESP_FUNC_COMPLETE)
        asd_clear_nexus_I_T_L(dev, lun);
    return res;
}

int asd_query_task(struct sas_task *task)
{
    struct asd_ascb *ascb = task->lldd_task;
    int index;

    if (ascb) {
        index = ascb->tc_index;
        return asd_initiate_ssp_tmf(task->dev, task->ssp_task.LUN,
                        TMF_QUERY_TASK, index);
    }
    return TMF_RESP_FUNC_COMPLETE;
}