[SCSI] lpfc 8.3.2 : Addition of SLI4 Interface - Mailbox handling
authorJames Smart <James.Smart@Emulex.Com>
Fri, 22 May 2009 18:52:52 +0000 (14:52 -0400)
committerJames Bottomley <James.Bottomley@HansenPartnership.com>
Mon, 8 Jun 2009 16:24:50 +0000 (11:24 -0500)
The mailbox commands themselves are the same, or very similar to
their SLI3 counterparts. This patch genericizes mailbox command
handling and adds support for the new SLI4 mailbox queue.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
drivers/scsi/lpfc/lpfc_attr.c
drivers/scsi/lpfc/lpfc_crtn.h
drivers/scsi/lpfc/lpfc_els.c
drivers/scsi/lpfc/lpfc_hbadisc.c
drivers/scsi/lpfc/lpfc_init.c
drivers/scsi/lpfc/lpfc_mbox.c
drivers/scsi/lpfc/lpfc_nportdisc.c
drivers/scsi/lpfc/lpfc_sli.c

index 82016fc..463104d 100644 (file)
@@ -507,12 +507,14 @@ lpfc_issue_lip(struct Scsi_Host *shost)
                return -ENOMEM;
 
        memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
-       pmboxq->mb.mbxCommand = MBX_DOWN_LINK;
-       pmboxq->mb.mbxOwner = OWN_HOST;
+       pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK;
+       pmboxq->u.mb.mbxOwner = OWN_HOST;
 
        mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2);
 
-       if ((mbxstatus == MBX_SUCCESS) && (pmboxq->mb.mbxStatus == 0)) {
+       if ((mbxstatus == MBX_SUCCESS) &&
+           (pmboxq->u.mb.mbxStatus == 0 ||
+            pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) {
                memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
                lpfc_init_link(phba, pmboxq, phba->cfg_topology,
                               phba->cfg_link_speed);
@@ -791,7 +793,8 @@ lpfc_get_hba_info(struct lpfc_hba *phba,
                  uint32_t *mrpi, uint32_t *arpi,
                  uint32_t *mvpi, uint32_t *avpi)
 {
-       struct lpfc_sli   *psli = &phba->sli;
+       struct lpfc_sli *psli = &phba->sli;
+       struct lpfc_mbx_read_config *rd_config;
        LPFC_MBOXQ_t *pmboxq;
        MAILBOX_t *pmb;
        int rc = 0;
@@ -813,7 +816,7 @@ lpfc_get_hba_info(struct lpfc_hba *phba,
                return 0;
        memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 
-       pmb = &pmboxq->mb;
+       pmb = &pmboxq->u.mb;
        pmb->mbxCommand = MBX_READ_CONFIG;
        pmb->mbxOwner = OWN_HOST;
        pmboxq->context1 = NULL;
@@ -3247,7 +3250,7 @@ sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
                }
        }
 
-       memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off,
+       memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off,
               buf, count);
 
        phba->sysfs_mbox.offset = off + count;
@@ -3289,6 +3292,7 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
        struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
        struct lpfc_hba   *phba = vport->phba;
        int rc;
+       MAILBOX_t *pmb;
 
        if (off > MAILBOX_CMD_SIZE)
                return -ERANGE;
@@ -3313,8 +3317,8 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
        if (off == 0 &&
            phba->sysfs_mbox.state  == SMBOX_WRITING &&
            phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
-
-               switch (phba->sysfs_mbox.mbox->mb.mbxCommand) {
+               pmb = &phba->sysfs_mbox.mbox->u.mb;
+               switch (pmb->mbxCommand) {
                        /* Offline only */
                case MBX_INIT_LINK:
                case MBX_DOWN_LINK:
@@ -3331,7 +3335,7 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
                        if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
                                printk(KERN_WARNING "mbox_read:Command 0x%x "
                                       "is illegal in on-line state\n",
-                                      phba->sysfs_mbox.mbox->mb.mbxCommand);
+                                      pmb->mbxCommand);
                                sysfs_mbox_idle(phba);
                                spin_unlock_irq(&phba->hbalock);
                                return -EPERM;
@@ -3367,13 +3371,13 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
                case MBX_CONFIG_PORT:
                case MBX_RUN_BIU_DIAG:
                        printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
-                              phba->sysfs_mbox.mbox->mb.mbxCommand);
+                              pmb->mbxCommand);
                        sysfs_mbox_idle(phba);
                        spin_unlock_irq(&phba->hbalock);
                        return -EPERM;
                default:
                        printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
-                              phba->sysfs_mbox.mbox->mb.mbxCommand);
+                              pmb->mbxCommand);
                        sysfs_mbox_idle(phba);
                        spin_unlock_irq(&phba->hbalock);
                        return -EPERM;
@@ -3383,14 +3387,14 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
                 * or RESTART mailbox commands until the HBA is restarted.
                 */
                if (phba->pport->stopped &&
-                   phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_DUMP_MEMORY &&
-                   phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_RESTART &&
-                   phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_WRITE_VPARMS &&
-                   phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_WRITE_WWN)
+                   pmb->mbxCommand != MBX_DUMP_MEMORY &&
+                   pmb->mbxCommand != MBX_RESTART &&
+                   pmb->mbxCommand != MBX_WRITE_VPARMS &&
+                   pmb->mbxCommand != MBX_WRITE_WWN)
                        lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
                                        "1259 mbox: Issued mailbox cmd "
                                        "0x%x while in stopped state.\n",
-                                       phba->sysfs_mbox.mbox->mb.mbxCommand);
+                                       pmb->mbxCommand);
 
                phba->sysfs_mbox.mbox->vport = vport;
 
@@ -3416,8 +3420,7 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
                        spin_unlock_irq(&phba->hbalock);
                        rc = lpfc_sli_issue_mbox_wait (phba,
                                                       phba->sysfs_mbox.mbox,
-                               lpfc_mbox_tmo_val(phba,
-                                   phba->sysfs_mbox.mbox->mb.mbxCommand) * HZ);
+                               lpfc_mbox_tmo_val(phba, pmb->mbxCommand) * HZ);
                        spin_lock_irq(&phba->hbalock);
                }
 
@@ -3439,7 +3442,7 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
                return -EAGAIN;
        }
 
-       memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count);
+       memcpy(buf, (uint8_t *) &pmb + off, count);
 
        phba->sysfs_mbox.offset = off + count;
 
@@ -3711,14 +3714,14 @@ lpfc_get_stats(struct Scsi_Host *shost)
                return NULL;
        memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t));
 
-       pmb = &pmboxq->mb;
+       pmb = &pmboxq->u.mb;
        pmb->mbxCommand = MBX_READ_STATUS;
        pmb->mbxOwner = OWN_HOST;
        pmboxq->context1 = NULL;
        pmboxq->vport = vport;
 
        if ((vport->fc_flag & FC_OFFLINE_MODE) ||
-               (!(psli->sli_flag & LPFC_SLI2_ACTIVE)))
+               (!(psli->sli_flag & LPFC_SLI_ACTIVE)))
                rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL);
        else
                rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2);
@@ -3817,7 +3820,7 @@ lpfc_reset_stats(struct Scsi_Host *shost)
                return;
        memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t));
 
-       pmb = &pmboxq->mb;
+       pmb = &pmboxq->u.mb;
        pmb->mbxCommand = MBX_READ_STATUS;
        pmb->mbxOwner = OWN_HOST;
        pmb->un.varWords[0] = 0x1; /* reset request */
index 3802e45..e0f1cd4 100644 (file)
@@ -209,6 +209,7 @@ void lpfc_sli_release_iocbq(struct lpfc_hba *, struct lpfc_iocbq *);
 uint16_t lpfc_sli_next_iotag(struct lpfc_hba *, struct lpfc_iocbq *);
 void lpfc_sli_cancel_iocbs(struct lpfc_hba *, struct list_head *, uint32_t,
                           uint32_t);
+void lpfc_sli_wake_mbox_wait(struct lpfc_hba *, LPFC_MBOXQ_t *);
 
 void lpfc_reset_barrier(struct lpfc_hba * phba);
 int lpfc_sli_brdready(struct lpfc_hba *, uint32_t);
index 9fe36bf..2c034a5 100644 (file)
@@ -4277,7 +4277,7 @@ lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
                        lpfc_init_link(phba, mbox,
                                       phba->cfg_topology,
                                       phba->cfg_link_speed);
-                       mbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
+                       mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
                        mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
                        mbox->vport = vport;
                        rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
@@ -4426,7 +4426,7 @@ lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
        uint16_t xri, status;
        uint32_t cmdsize;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
 
        ndlp = (struct lpfc_nodelist *) pmb->context2;
        xri = (uint16_t) ((unsigned long)(pmb->context1));
@@ -5755,7 +5755,7 @@ lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
        struct lpfc_vport *vport = pmb->vport;
        struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
        struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
 
        spin_lock_irq(shost->host_lock);
        vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
index 0fc6600..2270d9a 100644 (file)
@@ -879,7 +879,7 @@ lpfc_mbx_cmpl_clear_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
        struct lpfc_vport *vport = pmb->vport;
        struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
        struct lpfc_sli   *psli = &phba->sli;
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        uint32_t control;
 
        /* Since we don't do discovery right now, turn these off here */
@@ -942,7 +942,7 @@ lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
        struct lpfc_vport *vport = pmb->vport;
 
-       if (pmb->mb.mbxStatus)
+       if (pmb->u.mb.mbxStatus)
                goto out;
 
        mempool_free(pmb, phba->mbox_mem_pool);
@@ -970,7 +970,7 @@ out:
        lpfc_printf_vlog(vport, KERN_ERR, LOG_MBOX,
                         "0306 CONFIG_LINK mbxStatus error x%x "
                         "HBA state x%x\n",
-                        pmb->mb.mbxStatus, vport->port_state);
+                        pmb->u.mb.mbxStatus, vport->port_state);
        mempool_free(pmb, phba->mbox_mem_pool);
 
        lpfc_linkdown(phba);
@@ -1202,7 +1202,7 @@ lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
        struct lpfc_vport *vport = pmb->vport;
        struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
        READ_LA_VAR *la;
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
 
        /* Unblock ELS traffic */
@@ -1217,7 +1217,7 @@ lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
                goto lpfc_mbx_cmpl_read_la_free_mbuf;
        }
 
-       la = (READ_LA_VAR *) & pmb->mb.un.varReadLA;
+       la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
 
        memcpy(&phba->alpa_map[0], mp->virt, 128);
 
@@ -1355,7 +1355,7 @@ lpfc_mbx_cmpl_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 static void
 lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        struct lpfc_vport *vport = pmb->vport;
        struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
 
@@ -1408,7 +1408,7 @@ lpfc_mbx_cmpl_reg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
        struct lpfc_vport *vport = pmb->vport;
        struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
 
        switch (mb->mbxStatus) {
        case 0x0011:
@@ -2279,7 +2279,7 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 
        /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
        if ((mb = phba->sli.mbox_active)) {
-               if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
+               if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
                   (ndlp == (struct lpfc_nodelist *) mb->context2)) {
                        mb->context2 = NULL;
                        mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
@@ -2288,7 +2288,7 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 
        spin_lock_irq(&phba->hbalock);
        list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
-               if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
+               if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
                    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
                        mp = (struct lpfc_dmabuf *) (mb->context1);
                        if (mp) {
@@ -2970,7 +2970,7 @@ restart_disc:
                lpfc_linkdown(phba);
                lpfc_init_link(phba, initlinkmbox, phba->cfg_topology,
                               phba->cfg_link_speed);
-               initlinkmbox->mb.un.varInitLnk.lipsr_AL_PA = 0;
+               initlinkmbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
                initlinkmbox->vport = vport;
                initlinkmbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
                rc = lpfc_sli_issue_mbox(phba, initlinkmbox, MBX_NOWAIT);
@@ -3069,7 +3069,7 @@ restart_disc:
 void
 lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        struct lpfc_dmabuf   *mp = (struct lpfc_dmabuf *) (pmb->context1);
        struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) pmb->context2;
        struct lpfc_vport    *vport = pmb->vport;
index e9e4a1d..ff821bb 100644 (file)
@@ -108,7 +108,7 @@ lpfc_config_port_prep(struct lpfc_hba *phba)
                return -ENOMEM;
        }
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        phba->link_state = LPFC_INIT_MBX_CMDS;
 
        if (lpfc_is_LC_HBA(phba->pcidev->device)) {
@@ -221,6 +221,11 @@ lpfc_config_port_prep(struct lpfc_hba *phba)
                                        mb->mbxCommand, mb->mbxStatus);
                        mb->un.varDmp.word_cnt = 0;
                }
+               /* dump mem may return a zero when finished or we got a
+                * mailbox error, either way we are done.
+                */
+               if (mb->un.varDmp.word_cnt == 0)
+                       break;
                if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
                        mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
                lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
@@ -249,7 +254,7 @@ out_free_mbox:
 static void
 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 {
-       if (pmboxq->mb.mbxStatus == MBX_SUCCESS)
+       if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
                phba->temp_sensor_support = 1;
        else
                phba->temp_sensor_support = 0;
@@ -276,7 +281,7 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
        /* character array used for decoding dist type. */
        char dist_char[] = "nabx";
 
-       if (pmboxq->mb.mbxStatus != MBX_SUCCESS) {
+       if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
                mempool_free(pmboxq, phba->mbox_mem_pool);
                return;
        }
@@ -284,7 +289,7 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
        prg = (struct prog_id *) &prog_id_word;
 
        /* word 7 contain option rom version */
-       prog_id_word = pmboxq->mb.un.varWords[7];
+       prog_id_word = pmboxq->u.mb.un.varWords[7];
 
        /* Decode the Option rom version word to a readable string */
        if (prg->dist < 4)
@@ -341,7 +346,7 @@ lpfc_config_port_post(struct lpfc_hba *phba)
                phba->link_state = LPFC_HBA_ERROR;
                return -ENOMEM;
        }
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
 
        /* Get login parameters for NID.  */
        lpfc_read_sparam(phba, pmb, 0);
@@ -476,17 +481,18 @@ lpfc_config_port_post(struct lpfc_hba *phba)
                        lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
                                        "0352 Config MSI mailbox command "
                                        "failed, mbxCmd x%x, mbxStatus x%x\n",
-                                       pmb->mb.mbxCommand, pmb->mb.mbxStatus);
+                                       pmb->u.mb.mbxCommand,
+                                       pmb->u.mb.mbxStatus);
                        mempool_free(pmb, phba->mbox_mem_pool);
                        return -EIO;
                }
        }
 
+       spin_lock_irq(&phba->hbalock);
        /* Initialize ERATT handling flag */
        phba->hba_flag &= ~HBA_ERATT_HANDLED;
 
        /* Enable appropriate host interrupts */
-       spin_lock_irq(&phba->hbalock);
        status = readl(phba->HCregaddr);
        status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
        if (psli->num_rings > 0)
@@ -2201,7 +2207,7 @@ lpfc_offline_prep(struct lpfc_hba * phba)
        }
        lpfc_destroy_vport_work_array(phba, vports);
 
-       lpfc_sli_flush_mbox_queue(phba);
+       lpfc_sli_mbox_sys_shutdown(phba);
 }
 
 /**
index 7f5899b..6aeb1c6 100644 (file)
@@ -60,7 +60,7 @@ lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset)
        MAILBOX_t *mb;
        void *ctx;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        ctx = pmb->context2;
 
        /* Setup to dump VPD region */
@@ -92,7 +92,7 @@ lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
        MAILBOX_t *mb;
        void *ctx;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        /* Save context so that we can restore after memset */
        ctx = pmb->context2;
 
@@ -127,7 +127,7 @@ lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 {
        MAILBOX_t *mb;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
        mb->mbxCommand = MBX_READ_NV;
        mb->mbxOwner = OWN_HOST;
@@ -153,7 +153,7 @@ lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
 {
        MAILBOX_t *mb;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
        mb->mbxCommand = MBX_ASYNCEVT_ENABLE;
        mb->un.varCfgAsyncEvent.ring = ring;
@@ -179,7 +179,7 @@ lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 {
        MAILBOX_t *mb;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
        mb->mbxCommand = MBX_HEARTBEAT;
        mb->mbxOwner = OWN_HOST;
@@ -213,7 +213,7 @@ lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp)
        struct lpfc_sli *psli;
 
        psli = &phba->sli;
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
        INIT_LIST_HEAD(&mp->list);
@@ -250,7 +250,7 @@ lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 {
        MAILBOX_t *mb;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
        mb->un.varClearLA.eventTag = phba->fc_eventTag;
@@ -277,7 +277,7 @@ void
 lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 {
        struct lpfc_vport  *vport = phba->pport;
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
        /* NEW_FEATURE
@@ -323,7 +323,7 @@ lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 int
 lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        uint32_t attentionConditions[2];
 
        /* Sanity check */
@@ -407,7 +407,7 @@ lpfc_init_link(struct lpfc_hba * phba,
        struct lpfc_sli *psli;
        MAILBOX_t *mb;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
        psli = &phba->sli;
@@ -494,7 +494,7 @@ lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
        struct lpfc_sli *psli;
 
        psli = &phba->sli;
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
        mb->mbxOwner = OWN_HOST;
@@ -517,7 +517,7 @@ lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
        mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
        mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
        mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
-       mb->un.varRdSparm.vpi = vpi;
+       mb->un.varRdSparm.vpi = vpi + phba->vpi_base;
 
        /* save address for completion */
        pmb->context1 = mp;
@@ -546,10 +546,12 @@ lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
 {
        MAILBOX_t *mb;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
        mb->un.varUnregDID.did = did;
+       if (vpi != 0xffff)
+               vpi += phba->vpi_base;
        mb->un.varUnregDID.vpi = vpi;
 
        mb->mbxCommand = MBX_UNREG_D_ID;
@@ -575,7 +577,7 @@ lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 {
        MAILBOX_t *mb;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
        mb->mbxCommand = MBX_READ_CONFIG;
@@ -600,7 +602,7 @@ lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 {
        MAILBOX_t *mb;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
        mb->mbxCommand = MBX_READ_LNK_STAT;
@@ -609,7 +611,7 @@ lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 }
 
 /**
- * lpfc_reg_login - Prepare a mailbox command for registering remote login
+ * lpfc_reg_rpi - Prepare a mailbox command for registering remote login
  * @phba: pointer to lpfc hba data structure.
  * @vpi: virtual N_Port identifier.
  * @did: remote port identifier.
@@ -633,17 +635,23 @@ lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
  *    1 - DMA memory allocation failed
  **/
 int
-lpfc_reg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
+lpfc_reg_rpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
               uint8_t *param, LPFC_MBOXQ_t *pmb, uint32_t flag)
 {
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        uint8_t *sparam;
        struct lpfc_dmabuf *mp;
 
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
        mb->un.varRegLogin.rpi = 0;
-       mb->un.varRegLogin.vpi = vpi;
+       if (phba->sli_rev == LPFC_SLI_REV4) {
+               mb->un.varRegLogin.rpi = lpfc_sli4_alloc_rpi(phba);
+               if (mb->un.varRegLogin.rpi == LPFC_RPI_ALLOC_ERROR)
+                       return 1;
+       }
+
+       mb->un.varRegLogin.vpi = vpi + phba->vpi_base;
        mb->un.varRegLogin.did = did;
        mb->un.varWords[30] = flag;     /* Set flag to issue action on cmpl */
 
@@ -699,15 +707,16 @@ lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
 {
        MAILBOX_t *mb;
 
-       mb = &pmb->mb;
+       mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
        mb->un.varUnregLogin.rpi = (uint16_t) rpi;
        mb->un.varUnregLogin.rsvd1 = 0;
-       mb->un.varUnregLogin.vpi = vpi;
+       mb->un.varUnregLogin.vpi = vpi + phba->vpi_base;
 
        mb->mbxCommand = MBX_UNREG_LOGIN;
        mb->mbxOwner = OWN_HOST;
+
        return;
 }
 
@@ -727,15 +736,15 @@ lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
  * This routine prepares the mailbox command for registering a virtual N_Port.
  **/
 void
-lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid,
-            LPFC_MBOXQ_t *pmb)
+lpfc_reg_vpi(struct lpfc_vport *vport, LPFC_MBOXQ_t *pmb)
 {
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
 
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
-       mb->un.varRegVpi.vpi = vpi;
-       mb->un.varRegVpi.sid = sid;
+       mb->un.varRegVpi.vpi = vport->vpi + vport->phba->vpi_base;
+       mb->un.varRegVpi.sid = vport->fc_myDID;
+       mb->un.varRegVpi.vfi = vport->vfi + vport->phba->vfi_base;
 
        mb->mbxCommand = MBX_REG_VPI;
        mb->mbxOwner = OWN_HOST;
@@ -762,10 +771,10 @@ lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid,
 void
 lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
 {
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
 
-       mb->un.varUnregVpi.vpi = vpi;
+       mb->un.varUnregVpi.vpi = vpi + phba->vpi_base;
 
        mb->mbxCommand = MBX_UNREG_VPI;
        mb->mbxOwner = OWN_HOST;
@@ -854,7 +863,7 @@ lpfc_config_pcb_setup(struct lpfc_hba * phba)
 void
 lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 {
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
        mb->un.varRdRev.cv = 1;
        mb->un.varRdRev.v3req = 1; /* Request SLI3 info */
@@ -947,7 +956,7 @@ lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
                uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb)
 {
        int i;
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        struct config_hbq_var *hbqmb = &mb->un.varCfgHbq;
 
        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
@@ -1022,7 +1031,7 @@ void
 lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
 {
        int i;
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        struct lpfc_sli *psli;
        struct lpfc_sli_ring *pring;
 
@@ -1077,7 +1086,7 @@ void
 lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
        MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr;
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        dma_addr_t pdma_addr;
        uint32_t bar_low, bar_high;
        size_t offset;
@@ -1101,21 +1110,22 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 
        /* If HBA supports SLI=3 ask for it */
 
-       if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) {
+       if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) {
                if (phba->cfg_enable_bg)
                        mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
+               mb->un.varCfgPort.cdss = 1; /* Configure Security */
                mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
                mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
                mb->un.varCfgPort.cinb = 1; /* Interrupt Notification Block */
                mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
                if (phba->max_vpi && phba->cfg_enable_npiv &&
                    phba->vpd.sli3Feat.cmv) {
-                       mb->un.varCfgPort.max_vpi = phba->max_vpi;
+                       mb->un.varCfgPort.max_vpi = LPFC_MAX_VPI;
                        mb->un.varCfgPort.cmv = 1;
                } else
                        mb->un.varCfgPort.max_vpi = phba->max_vpi = 0;
        } else
-               phba->sli_rev = 2;
+               phba->sli_rev = LPFC_SLI_REV2;
        mb->un.varCfgPort.sli_mode = phba->sli_rev;
 
        /* Now setup pcb */
@@ -1247,7 +1257,7 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 void
 lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 {
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
 
        memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
        mb->mbxCommand = MBX_KILL_BOARD;
@@ -1307,29 +1317,98 @@ lpfc_mbox_get(struct lpfc_hba * phba)
 }
 
 /**
+ * __lpfc_mbox_cmpl_put - Put mailbox cmd into mailbox cmd complete list
+ * @phba: pointer to lpfc hba data structure.
+ * @mbq: pointer to the driver internal queue element for mailbox command.
+ *
+ * This routine put the completed mailbox command into the mailbox command
+ * complete list. This is the unlocked version of the routine. The mailbox
+ * complete list is used by the driver worker thread to process mailbox
+ * complete callback functions outside the driver interrupt handler.
+ **/
+void
+__lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
+{
+       list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
+}
+
+/**
  * lpfc_mbox_cmpl_put - Put mailbox command into mailbox command complete list
  * @phba: pointer to lpfc hba data structure.
  * @mbq: pointer to the driver internal queue element for mailbox command.
  *
  * This routine put the completed mailbox command into the mailbox command
- * complete list. This routine is called from driver interrupt handler
- * context.The mailbox complete list is used by the driver worker thread
- * to process mailbox complete callback functions outside the driver interrupt
- * handler.
+ * complete list. This is the locked version of the routine. The mailbox
+ * complete list is used by the driver worker thread to process mailbox
+ * complete callback functions outside the driver interrupt handler.
  **/
 void
-lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
+lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
 {
        unsigned long iflag;
 
        /* This function expects to be called from interrupt context */
        spin_lock_irqsave(&phba->hbalock, iflag);
-       list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
+       __lpfc_mbox_cmpl_put(phba, mbq);
        spin_unlock_irqrestore(&phba->hbalock, iflag);
        return;
 }
 
 /**
+ * lpfc_mbox_cmd_check - Check the validality of a mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to the driver internal queue element for mailbox command.
+ *
+ * This routine is to check whether a mailbox command is valid to be issued.
+ * This check will be performed by both the mailbox issue API when a client
+ * is to issue a mailbox command to the mailbox transport.
+ *
+ * Return 0 - pass the check, -ENODEV - fail the check
+ **/
+int
+lpfc_mbox_cmd_check(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+       /* Mailbox command that have a completion handler must also have a
+        * vport specified.
+        */
+       if (mboxq->mbox_cmpl && mboxq->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
+           mboxq->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
+               if (!mboxq->vport) {
+                       lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
+                                       "1814 Mbox x%x failed, no vport\n",
+                                       mboxq->u.mb.mbxCommand);
+                       dump_stack();
+                       return -ENODEV;
+               }
+       }
+       return 0;
+}
+
+/**
+ * lpfc_mbox_dev_check - Check the device state for issuing a mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is to check whether the HBA device is ready for posting a
+ * mailbox command. It is used by the mailbox transport API at the time the
+ * to post a mailbox command to the device.
+ *
+ * Return 0 - pass the check, -ENODEV - fail the check
+ **/
+int
+lpfc_mbox_dev_check(struct lpfc_hba *phba)
+{
+       /* If the PCI channel is in offline state, do not issue mbox */
+       if (unlikely(pci_channel_offline(phba->pcidev)))
+               return -ENODEV;
+
+       /* If the HBA is in error state, do not issue mbox */
+       if (phba->link_state == LPFC_HBA_ERROR)
+               return -ENODEV;
+
+       return 0;
+}
+
+/**
  * lpfc_mbox_tmo_val - Retrieve mailbox command timeout value
  * @phba: pointer to lpfc hba data structure.
  * @cmd: mailbox command code.
@@ -1352,6 +1431,475 @@ lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd)
        case MBX_WRITE_WWN:     /* 0x98 */
        case MBX_LOAD_EXP_ROM:  /* 0x9C */
                return LPFC_MBOX_TMO_FLASH_CMD;
+       case MBX_SLI4_CONFIG:   /* 0x9b */
+               return LPFC_MBOX_SLI4_CONFIG_TMO;
        }
        return LPFC_MBOX_TMO;
 }
+
+/**
+ * lpfc_sli4_mbx_sge_set - Set a sge entry in non-embedded mailbox command
+ * @mbox: pointer to lpfc mbox command.
+ * @sgentry: sge entry index.
+ * @phyaddr: physical address for the sge
+ * @length: Length of the sge.
+ *
+ * This routine sets up an entry in the non-embedded mailbox command at the sge
+ * index location.
+ **/
+void
+lpfc_sli4_mbx_sge_set(struct lpfcMboxq *mbox, uint32_t sgentry,
+                     dma_addr_t phyaddr, uint32_t length)
+{
+       struct lpfc_mbx_nembed_cmd *nembed_sge;
+
+       nembed_sge = (struct lpfc_mbx_nembed_cmd *)
+                               &mbox->u.mqe.un.nembed_cmd;
+       nembed_sge->sge[sgentry].pa_lo = putPaddrLow(phyaddr);
+       nembed_sge->sge[sgentry].pa_hi = putPaddrHigh(phyaddr);
+       nembed_sge->sge[sgentry].length = length;
+}
+
+/**
+ * lpfc_sli4_mbx_sge_get - Get a sge entry from non-embedded mailbox command
+ * @mbox: pointer to lpfc mbox command.
+ * @sgentry: sge entry index.
+ *
+ * This routine gets an entry from the non-embedded mailbox command at the sge
+ * index location.
+ **/
+void
+lpfc_sli4_mbx_sge_get(struct lpfcMboxq *mbox, uint32_t sgentry,
+                     struct lpfc_mbx_sge *sge)
+{
+       struct lpfc_mbx_nembed_cmd *nembed_sge;
+
+       nembed_sge = (struct lpfc_mbx_nembed_cmd *)
+                               &mbox->u.mqe.un.nembed_cmd;
+       sge->pa_lo = nembed_sge->sge[sgentry].pa_lo;
+       sge->pa_hi = nembed_sge->sge[sgentry].pa_hi;
+       sge->length = nembed_sge->sge[sgentry].length;
+}
+
+/**
+ * lpfc_sli4_mbox_cmd_free - Free a sli4 mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ * @mbox: pointer to lpfc mbox command.
+ *
+ * This routine frees SLI4 specific mailbox command for sending IOCTL command.
+ **/
+void
+lpfc_sli4_mbox_cmd_free(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
+{
+       struct lpfc_mbx_sli4_config *sli4_cfg;
+       struct lpfc_mbx_sge sge;
+       dma_addr_t phyaddr;
+       uint32_t sgecount, sgentry;
+
+       sli4_cfg = &mbox->u.mqe.un.sli4_config;
+
+       /* For embedded mbox command, just free the mbox command */
+       if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
+               mempool_free(mbox, phba->mbox_mem_pool);
+               return;
+       }
+
+       /* For non-embedded mbox command, we need to free the pages first */
+       sgecount = bf_get(lpfc_mbox_hdr_sge_cnt, &sli4_cfg->header.cfg_mhdr);
+       /* There is nothing we can do if there is no sge address array */
+       if (unlikely(!mbox->sge_array)) {
+               mempool_free(mbox, phba->mbox_mem_pool);
+               return;
+       }
+       /* Each non-embedded DMA memory was allocated in the length of a page */
+       for (sgentry = 0; sgentry < sgecount; sgentry++) {
+               lpfc_sli4_mbx_sge_get(mbox, sgentry, &sge);
+               phyaddr = getPaddr(sge.pa_hi, sge.pa_lo);
+               dma_free_coherent(&phba->pcidev->dev, PAGE_SIZE,
+                                 mbox->sge_array->addr[sgentry], phyaddr);
+       }
+       /* Free the sge address array memory */
+       kfree(mbox->sge_array);
+       /* Finally, free the mailbox command itself */
+       mempool_free(mbox, phba->mbox_mem_pool);
+}
+
+/**
+ * lpfc_sli4_config - Initialize the  SLI4 Config Mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ * @mbox: pointer to lpfc mbox command.
+ * @subsystem: The sli4 config sub mailbox subsystem.
+ * @opcode: The sli4 config sub mailbox command opcode.
+ * @length: Length of the sli4 config mailbox command.
+ *
+ * This routine sets up the header fields of SLI4 specific mailbox command
+ * for sending IOCTL command.
+ *
+ * Return: the actual length of the mbox command allocated (mostly useful
+ *         for none embedded mailbox command).
+ **/
+int
+lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
+                uint8_t subsystem, uint8_t opcode, uint32_t length, bool emb)
+{
+       struct lpfc_mbx_sli4_config *sli4_config;
+       union lpfc_sli4_cfg_shdr *cfg_shdr = NULL;
+       uint32_t alloc_len;
+       uint32_t resid_len;
+       uint32_t pagen, pcount;
+       void *viraddr;
+       dma_addr_t phyaddr;
+
+       /* Set up SLI4 mailbox command header fields */
+       memset(mbox, 0, sizeof(*mbox));
+       bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_SLI4_CONFIG);
+
+       /* Set up SLI4 ioctl command header fields */
+       sli4_config = &mbox->u.mqe.un.sli4_config;
+
+       /* Setup for the embedded mbox command */
+       if (emb) {
+               /* Set up main header fields */
+               bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1);
+               sli4_config->header.cfg_mhdr.payload_length =
+                                       LPFC_MBX_CMD_HDR_LENGTH + length;
+               /* Set up sub-header fields following main header */
+               bf_set(lpfc_mbox_hdr_opcode,
+                       &sli4_config->header.cfg_shdr.request, opcode);
+               bf_set(lpfc_mbox_hdr_subsystem,
+                       &sli4_config->header.cfg_shdr.request, subsystem);
+               sli4_config->header.cfg_shdr.request.request_length = length;
+               return length;
+       }
+
+       /* Setup for the none-embedded mbox command */
+       pcount = (PAGE_ALIGN(length))/PAGE_SIZE;
+       pcount = (pcount > LPFC_SLI4_MBX_SGE_MAX_PAGES) ?
+                               LPFC_SLI4_MBX_SGE_MAX_PAGES : pcount;
+       /* Allocate record for keeping SGE virtual addresses */
+       mbox->sge_array = kmalloc(sizeof(struct lpfc_mbx_nembed_sge_virt),
+                                 GFP_KERNEL);
+       if (!mbox->sge_array)
+               return 0;
+
+       for (pagen = 0, alloc_len = 0; pagen < pcount; pagen++) {
+               /* The DMA memory is always allocated in the length of a
+                * page even though the last SGE might not fill up to a
+                * page, this is used as a priori size of PAGE_SIZE for
+                * the later DMA memory free.
+                */
+               viraddr = dma_alloc_coherent(&phba->pcidev->dev, PAGE_SIZE,
+                                            &phyaddr, GFP_KERNEL);
+               /* In case of malloc fails, proceed with whatever we have */
+               if (!viraddr)
+                       break;
+               mbox->sge_array->addr[pagen] = viraddr;
+               /* Keep the first page for later sub-header construction */
+               if (pagen == 0)
+                       cfg_shdr = (union lpfc_sli4_cfg_shdr *)viraddr;
+               resid_len = length - alloc_len;
+               if (resid_len > PAGE_SIZE) {
+                       lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
+                                             PAGE_SIZE);
+                       alloc_len += PAGE_SIZE;
+               } else {
+                       lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
+                                             resid_len);
+                       alloc_len = length;
+               }
+       }
+
+       /* Set up main header fields in mailbox command */
+       sli4_config->header.cfg_mhdr.payload_length = alloc_len;
+       bf_set(lpfc_mbox_hdr_sge_cnt, &sli4_config->header.cfg_mhdr, pagen);
+
+       /* Set up sub-header fields into the first page */
+       if (pagen > 0) {
+               bf_set(lpfc_mbox_hdr_opcode, &cfg_shdr->request, opcode);
+               bf_set(lpfc_mbox_hdr_subsystem, &cfg_shdr->request, subsystem);
+               cfg_shdr->request.request_length =
+                               alloc_len - sizeof(union  lpfc_sli4_cfg_shdr);
+       }
+       /* The sub-header is in DMA memory, which needs endian converstion */
+       lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr,
+                             sizeof(union  lpfc_sli4_cfg_shdr));
+
+       return alloc_len;
+}
+
+/**
+ * lpfc_sli4_mbox_opcode_get - Get the opcode from a sli4 mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ * @mbox: pointer to lpfc mbox command.
+ *
+ * This routine gets the opcode from a SLI4 specific mailbox command for
+ * sending IOCTL command. If the mailbox command is not MBX_SLI4_CONFIG
+ * (0x9B) or if the IOCTL sub-header is not present, opcode 0x0 shall be
+ * returned.
+ **/
+uint8_t
+lpfc_sli4_mbox_opcode_get(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
+{
+       struct lpfc_mbx_sli4_config *sli4_cfg;
+       union lpfc_sli4_cfg_shdr *cfg_shdr;
+
+       if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
+               return 0;
+       sli4_cfg = &mbox->u.mqe.un.sli4_config;
+
+       /* For embedded mbox command, get opcode from embedded sub-header*/
+       if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
+               cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
+               return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
+       }
+
+       /* For non-embedded mbox command, get opcode from first dma page */
+       if (unlikely(!mbox->sge_array))
+               return 0;
+       cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
+       return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
+}
+
+/**
+ * lpfc_request_features: Configure SLI4 REQUEST_FEATURES mailbox
+ * @mboxq: pointer to lpfc mbox command.
+ *
+ * This routine sets up the mailbox for an SLI4 REQUEST_FEATURES
+ * mailbox command.
+ **/
+void
+lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq)
+{
+       /* Set up SLI4 mailbox command header fields */
+       memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
+       bf_set(lpfc_mqe_command, &mboxq->u.mqe, MBX_SLI4_REQ_FTRS);
+
+       /* Set up host requested features. */
+       bf_set(lpfc_mbx_rq_ftr_rq_fcpi, &mboxq->u.mqe.un.req_ftrs, 1);
+
+       /* Virtual fabrics and FIPs are not supported yet. */
+       bf_set(lpfc_mbx_rq_ftr_rq_ifip, &mboxq->u.mqe.un.req_ftrs, 0);
+
+       /* Enable DIF (block guard) only if configured to do so. */
+       if (phba->cfg_enable_bg)
+               bf_set(lpfc_mbx_rq_ftr_rq_dif, &mboxq->u.mqe.un.req_ftrs, 1);
+
+       /* Enable NPIV only if configured to do so. */
+       if (phba->max_vpi && phba->cfg_enable_npiv)
+               bf_set(lpfc_mbx_rq_ftr_rq_npiv, &mboxq->u.mqe.un.req_ftrs, 1);
+
+       return;
+}
+
+/**
+ * lpfc_init_vfi - Initialize the INIT_VFI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @vport: Vport associated with the VF.
+ *
+ * This routine initializes @mbox to all zeros and then fills in the mailbox
+ * fields from @vport. INIT_VFI configures virtual fabrics identified by VFI
+ * in the context of an FCF. The driver issues this command to setup a VFI
+ * before issuing a FLOGI to login to the VSAN. The driver should also issue a
+ * REG_VFI after a successful VSAN login.
+ **/
+void
+lpfc_init_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
+{
+       struct lpfc_mbx_init_vfi *init_vfi;
+
+       memset(mbox, 0, sizeof(*mbox));
+       init_vfi = &mbox->u.mqe.un.init_vfi;
+       bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VFI);
+       bf_set(lpfc_init_vfi_vr, init_vfi, 1);
+       bf_set(lpfc_init_vfi_vt, init_vfi, 1);
+       bf_set(lpfc_init_vfi_vfi, init_vfi, vport->vfi + vport->phba->vfi_base);
+       bf_set(lpfc_init_vfi_fcfi, init_vfi, vport->phba->fcf.fcfi);
+}
+
+/**
+ * lpfc_reg_vfi - Initialize the REG_VFI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @vport: vport associated with the VF.
+ * @phys: BDE DMA bus address used to send the service parameters to the HBA.
+ *
+ * This routine initializes @mbox to all zeros and then fills in the mailbox
+ * fields from @vport, and uses @buf as a DMAable buffer to send the vport's
+ * fc service parameters to the HBA for this VFI. REG_VFI configures virtual
+ * fabrics identified by VFI in the context of an FCF.
+ **/
+void
+lpfc_reg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport, dma_addr_t phys)
+{
+       struct lpfc_mbx_reg_vfi *reg_vfi;
+
+       memset(mbox, 0, sizeof(*mbox));
+       reg_vfi = &mbox->u.mqe.un.reg_vfi;
+       bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_VFI);
+       bf_set(lpfc_reg_vfi_vp, reg_vfi, 1);
+       bf_set(lpfc_reg_vfi_vfi, reg_vfi, vport->vfi + vport->phba->vfi_base);
+       bf_set(lpfc_reg_vfi_fcfi, reg_vfi, vport->phba->fcf.fcfi);
+       bf_set(lpfc_reg_vfi_vpi, reg_vfi, vport->vpi + vport->phba->vpi_base);
+       reg_vfi->bde.addrHigh = putPaddrHigh(phys);
+       reg_vfi->bde.addrLow = putPaddrLow(phys);
+       reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
+       reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
+       bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID);
+}
+
+/**
+ * lpfc_init_vpi - Initialize the INIT_VPI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @vpi: VPI to be initialized.
+ *
+ * The INIT_VPI mailbox command supports virtual N_Ports. The driver uses the
+ * command to activate a virtual N_Port. The HBA assigns a MAC address to use
+ * with the virtual N Port.  The SLI Host issues this command before issuing a
+ * FDISC to connect to the Fabric. The SLI Host should issue a REG_VPI after a
+ * successful virtual NPort login.
+ **/
+void
+lpfc_init_vpi(struct lpfcMboxq *mbox, uint16_t vpi)
+{
+       memset(mbox, 0, sizeof(*mbox));
+       bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VPI);
+       bf_set(lpfc_init_vpi_vpi, &mbox->u.mqe.un.init_vpi, vpi);
+}
+
+/**
+ * lpfc_unreg_vfi - Initialize the UNREG_VFI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @vfi: VFI to be unregistered.
+ *
+ * The UNREG_VFI mailbox command causes the SLI Host to put a virtual fabric
+ * (logical NPort) into the inactive state. The SLI Host must have logged out
+ * and unregistered all remote N_Ports to abort any activity on the virtual
+ * fabric. The SLI Port posts the mailbox response after marking the virtual
+ * fabric inactive.
+ **/
+void
+lpfc_unreg_vfi(struct lpfcMboxq *mbox, uint16_t vfi)
+{
+       memset(mbox, 0, sizeof(*mbox));
+       bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_VFI);
+       bf_set(lpfc_unreg_vfi_vfi, &mbox->u.mqe.un.unreg_vfi, vfi);
+}
+
+/**
+ * lpfc_dump_fcoe_param - Dump config region 23 to get FCoe parameters.
+ * @phba: pointer to the hba structure containing.
+ * @mbox: pointer to lpfc mbox command to initialize.
+ *
+ * This function create a SLI4 dump mailbox command to dump FCoE
+ * parameters stored in region 23.
+ **/
+int
+lpfc_dump_fcoe_param(struct lpfc_hba *phba,
+               struct lpfcMboxq *mbox)
+{
+       struct lpfc_dmabuf *mp = NULL;
+       MAILBOX_t *mb;
+
+       memset(mbox, 0, sizeof(*mbox));
+       mb = &mbox->u.mb;
+
+       mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+       if (mp)
+               mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
+
+       if (!mp || !mp->virt) {
+               kfree(mp);
+               /* dump_fcoe_param failed to allocate memory */
+               lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
+                       "2569 lpfc_dump_fcoe_param: memory"
+                       " allocation failed \n");
+               return 1;
+       }
+
+       memset(mp->virt, 0, LPFC_BPL_SIZE);
+       INIT_LIST_HEAD(&mp->list);
+
+       /* save address for completion */
+       mbox->context1 = (uint8_t *) mp;
+
+       mb->mbxCommand = MBX_DUMP_MEMORY;
+       mb->un.varDmp.type = DMP_NV_PARAMS;
+       mb->un.varDmp.region_id = DMP_REGION_FCOEPARAM;
+       mb->un.varDmp.sli4_length = DMP_FCOEPARAM_RGN_SIZE;
+       mb->un.varWords[3] = putPaddrLow(mp->phys);
+       mb->un.varWords[4] = putPaddrHigh(mp->phys);
+       return 0;
+}
+
+/**
+ * lpfc_reg_fcfi - Initialize the REG_FCFI mailbox command
+ * @phba: pointer to the hba structure containing the FCF index and RQ ID.
+ * @mbox: pointer to lpfc mbox command to initialize.
+ *
+ * The REG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs). The
+ * SLI Host uses the command to activate an FCF after it has acquired FCF
+ * information via a READ_FCF mailbox command. This mailbox command also is used
+ * to indicate where received unsolicited frames from this FCF will be sent. By
+ * default this routine will set up the FCF to forward all unsolicited frames
+ * the the RQ ID passed in the @phba. This can be overridden by the caller for
+ * more complicated setups.
+ **/
+void
+lpfc_reg_fcfi(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
+{
+       struct lpfc_mbx_reg_fcfi *reg_fcfi;
+
+       memset(mbox, 0, sizeof(*mbox));
+       reg_fcfi = &mbox->u.mqe.un.reg_fcfi;
+       bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI);
+       bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi, phba->sli4_hba.hdr_rq->queue_id);
+       bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi, REG_FCF_INVALID_QID);
+       bf_set(lpfc_reg_fcfi_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
+       bf_set(lpfc_reg_fcfi_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
+       bf_set(lpfc_reg_fcfi_info_index, reg_fcfi, phba->fcf.fcf_indx);
+       /* reg_fcf addr mode is bit wise inverted value of fcf addr_mode */
+       bf_set(lpfc_reg_fcfi_mam, reg_fcfi,
+               (~phba->fcf.addr_mode) & 0x3);
+       if (phba->fcf.fcf_flag & FCF_VALID_VLAN) {
+               bf_set(lpfc_reg_fcfi_vv, reg_fcfi, 1);
+               bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi, phba->fcf.vlan_id);
+       }
+}
+
+/**
+ * lpfc_unreg_fcfi - Initialize the UNREG_FCFI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @fcfi: FCFI to be unregistered.
+ *
+ * The UNREG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs).
+ * The SLI Host uses the command to inactivate an FCFI.
+ **/
+void
+lpfc_unreg_fcfi(struct lpfcMboxq *mbox, uint16_t fcfi)
+{
+       memset(mbox, 0, sizeof(*mbox));
+       bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_FCFI);
+       bf_set(lpfc_unreg_fcfi, &mbox->u.mqe.un.unreg_fcfi, fcfi);
+}
+
+/**
+ * lpfc_resume_rpi - Initialize the RESUME_RPI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @ndlp: The nodelist structure that describes the RPI to resume.
+ *
+ * The RESUME_RPI mailbox command is used to restart I/O to an RPI after a
+ * link event.
+ **/
+void
+lpfc_resume_rpi(struct lpfcMboxq *mbox, struct lpfc_nodelist *ndlp)
+{
+       struct lpfc_mbx_resume_rpi *resume_rpi;
+
+       memset(mbox, 0, sizeof(*mbox));
+       resume_rpi = &mbox->u.mqe.un.resume_rpi;
+       bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_RESUME_RPI);
+       bf_set(lpfc_resume_rpi_rpi, resume_rpi, ndlp->nlp_rpi);
+       bf_set(lpfc_resume_rpi_vpi, resume_rpi,
+              ndlp->vport->vpi + ndlp->vport->phba->vpi_base);
+       bf_set(lpfc_resume_rpi_vfi, resume_rpi,
+              ndlp->vport->vfi + ndlp->vport->phba->vfi_base);
+}
index 6ba5a72..6efe459 100644 (file)
@@ -1192,7 +1192,7 @@ lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
 
        /* cleanup any ndlp on mbox q waiting for reglogin cmpl */
        if ((mb = phba->sli.mbox_active)) {
-               if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
+               if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
                   (ndlp == (struct lpfc_nodelist *) mb->context2)) {
                        lpfc_nlp_put(ndlp);
                        mb->context2 = NULL;
@@ -1202,7 +1202,7 @@ lpfc_rcv_logo_reglogin_issue(struct lpfc_vport *vport,
 
        spin_lock_irq(&phba->hbalock);
        list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
-               if ((mb->mb.mbxCommand == MBX_REG_LOGIN64) &&
+               if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
                   (ndlp == (struct lpfc_nodelist *) mb->context2)) {
                        mp = (struct lpfc_dmabuf *) (mb->context1);
                        if (mp) {
@@ -1253,7 +1253,7 @@ lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
 {
        struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
        LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
-       MAILBOX_t *mb = &pmb->mb;
+       MAILBOX_t *mb = &pmb->u.mb;
        uint32_t did  = mb->un.varWords[1];
 
        if (mb->mbxStatus) {
@@ -1880,11 +1880,12 @@ lpfc_cmpl_reglogin_npr_node(struct lpfc_vport *vport,
                            void *arg, uint32_t evt)
 {
        LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
-       MAILBOX_t    *mb = &pmb->mb;
+       MAILBOX_t    *mb = &pmb->u.mb;
 
-       if (!mb->mbxStatus)
+       if (!mb->mbxStatus) {
                ndlp->nlp_rpi = mb->un.varWords[0];
-       else {
+               ndlp->nlp_flag |= NLP_RPI_VALID;
+       } else {
                if (ndlp->nlp_flag & NLP_NODEV_REMOVE) {
                        lpfc_drop_node(vport, ndlp);
                        return NLP_STE_FREED_NODE;
index cf42ada..b53af99 100644 (file)
 #include "lpfc_logmsg.h"
 #include "lpfc_compat.h"
 #include "lpfc_debugfs.h"
-
-/*
- * Define macro to log: Mailbox command x%x cannot issue Data
- * This allows multiple uses of lpfc_msgBlk0311
- * w/o perturbing log msg utility.
- */
-#define LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) \
-                       lpfc_printf_log(phba, \
-                               KERN_INFO, \
-                               LOG_MBOX | LOG_SLI, \
-                               "(%d):0311 Mailbox command x%x cannot " \
-                               "issue Data: x%x x%x x%x\n", \
-                               pmbox->vport ? pmbox->vport->vpi : 0, \
-                               pmbox->mb.mbxCommand,           \
-                               phba->pport->port_state,        \
-                               psli->sli_flag, \
-                               flag)
-
+#include "lpfc_vport.h"
 
 /* There are only four IOCB completion types. */
 typedef enum _lpfc_iocb_type {
@@ -843,7 +826,7 @@ lpfc_sli_ring_map(struct lpfc_hba *phba)
        pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
        if (!pmb)
                return -ENOMEM;
-       pmbox = &pmb->mb;
+       pmbox = &pmb->u.mb;
        phba->link_state = LPFC_INIT_MBX_CMDS;
        for (i = 0; i < psli->num_rings; i++) {
                lpfc_config_ring(phba, i, pmb);
@@ -1652,6 +1635,15 @@ lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
        case MBX_HEARTBEAT:
        case MBX_PORT_CAPABILITIES:
        case MBX_PORT_IOV_CONTROL:
+       case MBX_SLI4_CONFIG:
+       case MBX_SLI4_REQ_FTRS:
+       case MBX_REG_FCFI:
+       case MBX_UNREG_FCFI:
+       case MBX_REG_VFI:
+       case MBX_UNREG_VFI:
+       case MBX_INIT_VPI:
+       case MBX_INIT_VFI:
+       case MBX_RESUME_RPI:
                ret = mbxCommand;
                break;
        default:
@@ -1672,7 +1664,7 @@ lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
  * will wake up thread waiting on the wait queue pointed by context1
  * of the mailbox.
  **/
-static void
+void
 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 {
        wait_queue_head_t *pdone_q;
@@ -1706,7 +1698,7 @@ void
 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 {
        struct lpfc_dmabuf *mp;
-       uint16_t rpi;
+       uint16_t rpi, vpi;
        int rc;
 
        mp = (struct lpfc_dmabuf *) (pmb->context1);
@@ -1716,24 +1708,30 @@ lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
                kfree(mp);
        }
 
+       if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) &&
+           (phba->sli_rev == LPFC_SLI_REV4))
+               lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi);
+
        /*
         * If a REG_LOGIN succeeded  after node is destroyed or node
         * is in re-discovery driver need to cleanup the RPI.
         */
        if (!(phba->pport->load_flag & FC_UNLOADING) &&
-           pmb->mb.mbxCommand == MBX_REG_LOGIN64 &&
-           !pmb->mb.mbxStatus) {
-
-               rpi = pmb->mb.un.varWords[0];
-               lpfc_unreg_login(phba, pmb->mb.un.varRegLogin.vpi, rpi, pmb);
+           pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
+           !pmb->u.mb.mbxStatus) {
+               rpi = pmb->u.mb.un.varWords[0];
+               vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base;
+               lpfc_unreg_login(phba, vpi, rpi, pmb);
                pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
                rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
                if (rc != MBX_NOT_FINISHED)
                        return;
        }
 
-       mempool_free(pmb, phba->mbox_mem_pool);
-       return;
+       if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
+               lpfc_sli4_mbox_cmd_free(phba, pmb);
+       else
+               mempool_free(pmb, phba->mbox_mem_pool);
 }
 
 /**
@@ -1770,7 +1768,7 @@ lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
                if (pmb == NULL)
                        break;
 
-               pmbox = &pmb->mb;
+               pmbox = &pmb->u.mb;
 
                if (pmbox->mbxCommand != MBX_HEARTBEAT) {
                        if (pmb->vport) {
@@ -1799,9 +1797,10 @@ lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
                        /* Unknow mailbox command compl */
                        lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
                                        "(%d):0323 Unknown Mailbox command "
-                                       "%x Cmpl\n",
+                                       "x%x (x%x) Cmpl\n",
                                        pmb->vport ? pmb->vport->vpi : 0,
-                                       pmbox->mbxCommand);
+                                       pmbox->mbxCommand,
+                                       lpfc_sli4_mbox_opcode_get(phba, pmb));
                        phba->link_state = LPFC_HBA_ERROR;
                        phba->work_hs = HS_FFER3;
                        lpfc_handle_eratt(phba);
@@ -1816,29 +1815,29 @@ lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
                                                LOG_MBOX | LOG_SLI,
                                                "(%d):0305 Mbox cmd cmpl "
                                                "error - RETRYing Data: x%x "
-                                               "x%x x%x x%x\n",
+                                               "(x%x) x%x x%x x%x\n",
                                                pmb->vport ? pmb->vport->vpi :0,
                                                pmbox->mbxCommand,
+                                               lpfc_sli4_mbox_opcode_get(phba,
+                                                                         pmb),
                                                pmbox->mbxStatus,
                                                pmbox->un.varWords[0],
                                                pmb->vport->port_state);
                                pmbox->mbxStatus = 0;
                                pmbox->mbxOwner = OWN_HOST;
-                               spin_lock_irq(&phba->hbalock);
-                               phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
-                               spin_unlock_irq(&phba->hbalock);
                                rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
-                               if (rc == MBX_SUCCESS)
+                               if (rc != MBX_NOT_FINISHED)
                                        continue;
                        }
                }
 
                /* Mailbox cmd <cmd> Cmpl <cmpl> */
                lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
-                               "(%d):0307 Mailbox cmd x%x Cmpl x%p "
+                               "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
                                "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
                                pmb->vport ? pmb->vport->vpi : 0,
                                pmbox->mbxCommand,
+                               lpfc_sli4_mbox_opcode_get(phba, pmb),
                                pmb->mbox_cmpl,
                                *((uint32_t *) pmbox),
                                pmbox->un.varWords[0],
@@ -3377,10 +3376,10 @@ lpfc_sli_brdkill(struct lpfc_hba *phba)
        }
        spin_lock_irq(&phba->hbalock);
        psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+       psli->mbox_active = NULL;
        phba->link_flag &= ~LS_IGNORE_ERATT;
        spin_unlock_irq(&phba->hbalock);
 
-       psli->mbox_active = NULL;
        lpfc_hba_down_post(phba);
        phba->link_state = LPFC_HBA_ERROR;
 
@@ -3790,7 +3789,7 @@ lpfc_sli_hbq_setup(struct lpfc_hba *phba)
        if (!pmb)
                return -ENOMEM;
 
-       pmbox = &pmb->mb;
+       pmbox = &pmb->u.mb;
 
        /* Initialize the struct lpfc_sli_hbq structure for each hbq */
        phba->link_state = LPFC_INIT_MBX_CMDS;
@@ -3917,33 +3916,43 @@ lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
                        lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
                                "0442 Adapter failed to init, mbxCmd x%x "
                                "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
-                               pmb->mb.mbxCommand, pmb->mb.mbxStatus, 0);
+                               pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
                        spin_lock_irq(&phba->hbalock);
-                       phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
+                       phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
                        spin_unlock_irq(&phba->hbalock);
                        rc = -ENXIO;
-               } else
+               } else {
+                       /* Allow asynchronous mailbox command to go through */
+                       spin_lock_irq(&phba->hbalock);
+                       phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
+                       spin_unlock_irq(&phba->hbalock);
                        done = 1;
+               }
        }
        if (!done) {
                rc = -EINVAL;
                goto do_prep_failed;
        }
-       if (pmb->mb.un.varCfgPort.sli_mode == 3) {
-               if (!pmb->mb.un.varCfgPort.cMA) {
+       if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
+               if (!pmb->u.mb.un.varCfgPort.cMA) {
                        rc = -ENXIO;
                        goto do_prep_failed;
                }
-               if (phba->max_vpi && pmb->mb.un.varCfgPort.gmv) {
+               if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
                        phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
-                       phba->max_vpi = pmb->mb.un.varCfgPort.max_vpi;
+                       phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
+                       phba->max_vports = (phba->max_vpi > phba->max_vports) ?
+                               phba->max_vpi : phba->max_vports;
+
                } else
                        phba->max_vpi = 0;
-               if (pmb->mb.un.varCfgPort.gerbm)
+               if (pmb->u.mb.un.varCfgPort.gdss)
+                       phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
+               if (pmb->u.mb.un.varCfgPort.gerbm)
                        phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
-               if (pmb->mb.un.varCfgPort.gcrp)
+               if (pmb->u.mb.un.varCfgPort.gcrp)
                        phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
-               if (pmb->mb.un.varCfgPort.ginb) {
+               if (pmb->u.mb.un.varCfgPort.ginb) {
                        phba->sli3_options |= LPFC_SLI3_INB_ENABLED;
                        phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
                        phba->port_gp = phba->mbox->us.s3_inb_pgp.port;
@@ -3959,7 +3968,7 @@ lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
                }
 
                if (phba->cfg_enable_bg) {
-                       if (pmb->mb.un.varCfgPort.gbg)
+                       if (pmb->u.mb.un.varCfgPort.gbg)
                                phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
                        else
                                lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -4054,8 +4063,9 @@ lpfc_sli_hba_setup(struct lpfc_hba *phba)
                if (rc)
                        goto lpfc_sli_hba_setup_error;
        }
-
+       spin_lock_irq(&phba->hbalock);
        phba->sli.sli_flag |= LPFC_PROCESS_LA;
+       spin_unlock_irq(&phba->hbalock);
 
        rc = lpfc_config_port_post(phba);
        if (rc)
@@ -4596,7 +4606,7 @@ void
 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
 {
        LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
-       MAILBOX_t *mb = &pmbox->mb;
+       MAILBOX_t *mb = &pmbox->u.mb;
        struct lpfc_sli *psli = &phba->sli;
        struct lpfc_sli_ring *pring;
 
@@ -6414,6 +6424,52 @@ lpfc_sli_queue_setup(struct lpfc_hba *phba)
 }
 
 /**
+ * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
+ * @phba: Pointer to HBA context object.
+ *
+ * This routine flushes the mailbox command subsystem. It will unconditionally
+ * flush all the mailbox commands in the three possible stages in the mailbox
+ * command sub-system: pending mailbox command queue; the outstanding mailbox
+ * command; and completed mailbox command queue. It is caller's responsibility
+ * to make sure that the driver is in the proper state to flush the mailbox
+ * command sub-system. Namely, the posting of mailbox commands into the
+ * pending mailbox command queue from the various clients must be stopped;
+ * either the HBA is in a state that it will never works on the outstanding
+ * mailbox command (such as in EEH or ERATT conditions) or the outstanding
+ * mailbox command has been completed.
+ **/
+static void
+lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
+{
+       LIST_HEAD(completions);
+       struct lpfc_sli *psli = &phba->sli;
+       LPFC_MBOXQ_t *pmb;
+       unsigned long iflag;
+
+       /* Flush all the mailbox commands in the mbox system */
+       spin_lock_irqsave(&phba->hbalock, iflag);
+       /* The pending mailbox command queue */
+       list_splice_init(&phba->sli.mboxq, &completions);
+       /* The outstanding active mailbox command */
+       if (psli->mbox_active) {
+               list_add_tail(&psli->mbox_active->list, &completions);
+               psli->mbox_active = NULL;
+               psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+       }
+       /* The completed mailbox command queue */
+       list_splice_init(&phba->sli.mboxq_cmpl, &completions);
+       spin_unlock_irqrestore(&phba->hbalock, iflag);
+
+       /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
+       while (!list_empty(&completions)) {
+               list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
+               pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
+               if (pmb->mbox_cmpl)
+                       pmb->mbox_cmpl(phba, pmb);
+       }
+}
+
+/**
  * lpfc_sli_host_down - Vport cleanup function
  * @vport: Pointer to virtual port object.
  *
@@ -6506,9 +6562,11 @@ lpfc_sli_hba_down(struct lpfc_hba *phba)
        struct lpfc_sli *psli = &phba->sli;
        struct lpfc_sli_ring *pring;
        struct lpfc_dmabuf *buf_ptr;
-       LPFC_MBOXQ_t *pmb;
-       int i;
        unsigned long flags = 0;
+       int i;
+
+       /* Shutdown the mailbox command sub-system */
+       lpfc_sli_mbox_sys_shutdown(phba);
 
        lpfc_hba_down_prep(phba);
 
@@ -7773,7 +7831,7 @@ lpfc_sli_sp_intr_handler(int irq, void *dev_id)
 
                if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
                        pmb = phba->sli.mbox_active;
-                       pmbox = &pmb->mb;
+                       pmbox = &pmb->u.mb;
                        mbox = phba->mbox;
                        vport = pmb->vport;
 
@@ -8170,6 +8228,183 @@ lpfc_sli4_iocb_param_transfer(struct lpfc_iocbq *pIocbIn,
 }
 
 /**
+ * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
+ * @phba: Pointer to HBA context object.
+ * @cqe: Pointer to mailbox completion queue entry.
+ *
+ * This routine process a mailbox completion queue entry with asynchrous
+ * event.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
+ **/
+static bool
+lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
+{
+       struct lpfc_cq_event *cq_event;
+       unsigned long iflags;
+
+       lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+                       "0392 Async Event: word0:x%x, word1:x%x, "
+                       "word2:x%x, word3:x%x\n", mcqe->word0,
+                       mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
+
+       /* Allocate a new internal CQ_EVENT entry */
+       cq_event = lpfc_sli4_cq_event_alloc(phba);
+       if (!cq_event) {
+               lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+                               "0394 Failed to allocate CQ_EVENT entry\n");
+               return false;
+       }
+
+       /* Move the CQE into an asynchronous event entry */
+       memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
+       spin_lock_irqsave(&phba->hbalock, iflags);
+       list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
+       /* Set the async event flag */
+       phba->hba_flag |= ASYNC_EVENT;
+       spin_unlock_irqrestore(&phba->hbalock, iflags);
+
+       return true;
+}
+
+/**
+ * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
+ * @phba: Pointer to HBA context object.
+ * @cqe: Pointer to mailbox completion queue entry.
+ *
+ * This routine process a mailbox completion queue entry with mailbox
+ * completion event.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
+ **/
+static bool
+lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
+{
+       uint32_t mcqe_status;
+       MAILBOX_t *mbox, *pmbox;
+       struct lpfc_mqe *mqe;
+       struct lpfc_vport *vport;
+       struct lpfc_nodelist *ndlp;
+       struct lpfc_dmabuf *mp;
+       unsigned long iflags;
+       LPFC_MBOXQ_t *pmb;
+       bool workposted = false;
+       int rc;
+
+       /* If not a mailbox complete MCQE, out by checking mailbox consume */
+       if (!bf_get(lpfc_trailer_completed, mcqe))
+               goto out_no_mqe_complete;
+
+       /* Get the reference to the active mbox command */
+       spin_lock_irqsave(&phba->hbalock, iflags);
+       pmb = phba->sli.mbox_active;
+       if (unlikely(!pmb)) {
+               lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+                               "1832 No pending MBOX command to handle\n");
+               spin_unlock_irqrestore(&phba->hbalock, iflags);
+               goto out_no_mqe_complete;
+       }
+       spin_unlock_irqrestore(&phba->hbalock, iflags);
+       mqe = &pmb->u.mqe;
+       pmbox = (MAILBOX_t *)&pmb->u.mqe;
+       mbox = phba->mbox;
+       vport = pmb->vport;
+
+       /* Reset heartbeat timer */
+       phba->last_completion_time = jiffies;
+       del_timer(&phba->sli.mbox_tmo);
+
+       /* Move mbox data to caller's mailbox region, do endian swapping */
+       if (pmb->mbox_cmpl && mbox)
+               lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
+       /* Set the mailbox status with SLI4 range 0x4000 */
+       mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
+       if (mcqe_status != MB_CQE_STATUS_SUCCESS)
+               bf_set(lpfc_mqe_status, mqe,
+                      (LPFC_MBX_ERROR_RANGE | mcqe_status));
+
+       if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
+               pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
+               lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
+                                     "MBOX dflt rpi: status:x%x rpi:x%x",
+                                     mcqe_status,
+                                     pmbox->un.varWords[0], 0);
+               if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
+                       mp = (struct lpfc_dmabuf *)(pmb->context1);
+                       ndlp = (struct lpfc_nodelist *)pmb->context2;
+                       /* Reg_LOGIN of dflt RPI was successful. Now lets get
+                        * RID of the PPI using the same mbox buffer.
+                        */
+                       lpfc_unreg_login(phba, vport->vpi,
+                                        pmbox->un.varWords[0], pmb);
+                       pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
+                       pmb->context1 = mp;
+                       pmb->context2 = ndlp;
+                       pmb->vport = vport;
+                       rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+                       if (rc != MBX_BUSY)
+                               lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
+                                               LOG_SLI, "0385 rc should "
+                                               "have been MBX_BUSY\n");
+                       if (rc != MBX_NOT_FINISHED)
+                               goto send_current_mbox;
+               }
+       }
+       spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
+       phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
+       spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
+
+       /* There is mailbox completion work to do */
+       spin_lock_irqsave(&phba->hbalock, iflags);
+       __lpfc_mbox_cmpl_put(phba, pmb);
+       phba->work_ha |= HA_MBATT;
+       spin_unlock_irqrestore(&phba->hbalock, iflags);
+       workposted = true;
+
+send_current_mbox:
+       spin_lock_irqsave(&phba->hbalock, iflags);
+       /* Release the mailbox command posting token */
+       phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+       /* Setting active mailbox pointer need to be in sync to flag clear */
+       phba->sli.mbox_active = NULL;
+       spin_unlock_irqrestore(&phba->hbalock, iflags);
+       /* Wake up worker thread to post the next pending mailbox command */
+       lpfc_worker_wake_up(phba);
+out_no_mqe_complete:
+       if (bf_get(lpfc_trailer_consumed, mcqe))
+               lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
+       return workposted;
+}
+
+/**
+ * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
+ * @phba: Pointer to HBA context object.
+ * @cqe: Pointer to mailbox completion queue entry.
+ *
+ * This routine process a mailbox completion queue entry, it invokes the
+ * proper mailbox complete handling or asynchrous event handling routine
+ * according to the MCQE's async bit.
+ *
+ * Return: true if work posted to worker thread, otherwise false.
+ **/
+static bool
+lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
+{
+       struct lpfc_mcqe mcqe;
+       bool workposted;
+
+       /* Copy the mailbox MCQE and convert endian order as needed */
+       lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
+
+       /* Invoke the proper event handling routine */
+       if (!bf_get(lpfc_trailer_async, &mcqe))
+               workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
+       else
+               workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
+       return workposted;
+}
+
+/**
  * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
  * @phba: Pointer to HBA context object.
  * @wcqe: Pointer to work-queue completion queue entry.
@@ -9247,6 +9482,112 @@ out:
 }
 
 /**
+ * lpfc_mq_create - Create a mailbox Queue on the HBA
+ * @phba: HBA structure that indicates port to create a queue on.
+ * @mq: The queue structure to use to create the mailbox queue.
+ *
+ * This function creates a mailbox queue, as detailed in @mq, on a port,
+ * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
+ *
+ * The @phba struct is used to send mailbox command to HBA. The @cq struct
+ * is used to get the entry count and entry size that are necessary to
+ * determine the number of pages to allocate and use for this queue. This
+ * function will send the MQ_CREATE mailbox command to the HBA to setup the
+ * mailbox queue. This function is asynchronous and will wait for the mailbox
+ * command to finish before continuing.
+ *
+ * On success this function will return a zero. If unable to allocate enough
+ * memory this function will return ENOMEM. If the queue create mailbox command
+ * fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
+              struct lpfc_queue *cq, uint32_t subtype)
+{
+       struct lpfc_mbx_mq_create *mq_create;
+       struct lpfc_dmabuf *dmabuf;
+       LPFC_MBOXQ_t *mbox;
+       int rc, length, status = 0;
+       uint32_t shdr_status, shdr_add_status;
+       union lpfc_sli4_cfg_shdr *shdr;
+
+       mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+       if (!mbox)
+               return -ENOMEM;
+       length = (sizeof(struct lpfc_mbx_mq_create) -
+                 sizeof(struct lpfc_sli4_cfg_mhdr));
+       lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
+                        LPFC_MBOX_OPCODE_MQ_CREATE,
+                        length, LPFC_SLI4_MBX_EMBED);
+       mq_create = &mbox->u.mqe.un.mq_create;
+       bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
+                   mq->page_count);
+       bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
+                   cq->queue_id);
+       bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
+       switch (mq->entry_count) {
+       default:
+               lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+                               "0362 Unsupported MQ count. (%d)\n",
+                               mq->entry_count);
+               if (mq->entry_count < 16)
+                       return -EINVAL;
+               /* otherwise default to smallest count (drop through) */
+       case 16:
+               bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
+                      LPFC_MQ_CNT_16);
+               break;
+       case 32:
+               bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
+                      LPFC_MQ_CNT_32);
+               break;
+       case 64:
+               bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
+                      LPFC_MQ_CNT_64);
+               break;
+       case 128:
+               bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
+                      LPFC_MQ_CNT_128);
+               break;
+       }
+       list_for_each_entry(dmabuf, &mq->page_list, list) {
+               mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
+                                       putPaddrLow(dmabuf->phys);
+               mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
+                                       putPaddrHigh(dmabuf->phys);
+       }
+       rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+       /* The IOCTL status is embedded in the mailbox subheader. */
+       shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
+       shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+       shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+       if (shdr_status || shdr_add_status || rc) {
+               lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+                               "2502 MQ_CREATE mailbox failed with "
+                               "status x%x add_status x%x, mbx status x%x\n",
+                               shdr_status, shdr_add_status, rc);
+               status = -ENXIO;
+               goto out;
+       }
+       mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response);
+       if (mq->queue_id == 0xFFFF) {
+               status = -ENXIO;
+               goto out;
+       }
+       mq->type = LPFC_MQ;
+       mq->subtype = subtype;
+       mq->host_index = 0;
+       mq->hba_index = 0;
+
+       /* link the mq onto the parent cq child list */
+       list_add_tail(&mq->list, &cq->child_list);
+out:
+       if (rc != MBX_TIMEOUT)
+               mempool_free(mbox, phba->mbox_mem_pool);
+       return status;
+}
+
+/**
  * lpfc_wq_create - Create a Work Queue on the HBA
  * @phba: HBA structure that indicates port to create a queue on.
  * @wq: The queue structure to use to create the work queue.
@@ -9615,6 +9956,60 @@ lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
 }
 
 /**
+ * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
+ * @qm: The queue structure associated with the queue to destroy.
+ *
+ * This function destroys a queue, as detailed in @mq by sending an mailbox
+ * command, specific to the type of queue, to the HBA.
+ *
+ * The @mq struct is used to get the queue ID of the queue to destroy.
+ *
+ * On success this function will return a zero. If the queue destroy mailbox
+ * command fails this function will return ENXIO.
+ **/
+uint32_t
+lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
+{
+       LPFC_MBOXQ_t *mbox;
+       int rc, length, status = 0;
+       uint32_t shdr_status, shdr_add_status;
+       union lpfc_sli4_cfg_shdr *shdr;
+
+       if (!mq)
+               return -ENODEV;
+       mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
+       if (!mbox)
+               return -ENOMEM;
+       length = (sizeof(struct lpfc_mbx_mq_destroy) -
+                 sizeof(struct lpfc_sli4_cfg_mhdr));
+       lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
+                        LPFC_MBOX_OPCODE_MQ_DESTROY,
+                        length, LPFC_SLI4_MBX_EMBED);
+       bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
+              mq->queue_id);
+       mbox->vport = mq->phba->pport;
+       mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+       rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
+       /* The IOCTL status is embedded in the mailbox subheader. */
+       shdr = (union lpfc_sli4_cfg_shdr *)
+               &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
+       shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
+       shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
+       if (shdr_status || shdr_add_status || rc) {
+               lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+                               "2507 MQ_DESTROY mailbox failed with "
+                               "status x%x add_status x%x, mbx status x%x\n",
+                               shdr_status, shdr_add_status, rc);
+               status = -ENXIO;
+       }
+       /* Remove mq from any list */
+       list_del_init(&mq->list);
+       if (rc != MBX_TIMEOUT)
+               mempool_free(mbox, mq->phba->mbox_mem_pool);
+       return status;
+}
+
+/**
  * lpfc_wq_destroy - Destroy a Work Queue on the HBA
  * @wq: The queue structure associated with the queue to destroy.
  *