[SCSI] lpfc 8.3.18: Add support of received ELS commands

Add support of received ELS commands

- Add support for received RLS ELS command
- Add support for received ECHO ELS command
- Add support for received RTV ELS command

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

3 files changed, 389 insertions, 2 deletions

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index a50aa03b8ac1..cd4afcf749dd 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -202,9 +202,12 @@ struct lpfc_stats {
         uint32_t elsRcvPRLO;
         uint32_t elsRcvPRLI;
         uint32_t elsRcvLIRR;
+        uint32_t elsRcvRLS;
         uint32_t elsRcvRPS;
         uint32_t elsRcvRPL;
         uint32_t elsRcvRRQ;
+        uint32_t elsRcvRTV;
+        uint32_t elsRcvECHO;
         uint32_t elsXmitFLOGI;
         uint32_t elsXmitFDISC;
         uint32_t elsXmitPLOGI;
@@ -573,6 +576,7 @@ struct lpfc_hba {
         /* These fields used to be binfo */
         uint32_t fc_pref_DID;   /* preferred D_ID */
         uint8_t  fc_pref_ALPA;  /* preferred AL_PA */
+        uint32_t fc_edtovResol; /* E_D_TOV timer resolution */
         uint32_t fc_edtov;      /* E_D_TOV timer value */
         uint32_t fc_arbtov;     /* ARB_TOV timer value */
         uint32_t fc_ratov;      /* R_A_TOV timer value */
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index b16311d60c66..ea511d18f0ec 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -517,6 +517,7 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
         if (sp->cmn.edtovResolution)    /* E_D_TOV ticks are in nanoseconds */
                 phba->fc_edtov = (phba->fc_edtov + 999999) / 1000000;
 
+        phba->fc_edtovResol = sp->cmn.edtovResolution;
         phba->fc_ratov = (be32_to_cpu(sp->cmn.w2.r_a_tov) + 999) / 1000;
 
         if (phba->fc_topology == TOPOLOGY_LOOP) {
@@ -3928,6 +3929,64 @@ lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
 }
 
 /**
+ * lpfc_els_rsp_echo_acc - Issue echo acc response
+ * @vport: pointer to a virtual N_Port data structure.
+ * @data: pointer to echo data to return in the accept.
+ * @oldiocb: pointer to the original lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * Return code
+ *   0 - Successfully issued acc echo response
+ *   1 - Failed to issue acc echo response
+ **/
+static int
+lpfc_els_rsp_echo_acc(struct lpfc_vport *vport, uint8_t *data,
+                      struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
+{
+        struct lpfc_hba  *phba = vport->phba;
+        struct lpfc_iocbq *elsiocb;
+        struct lpfc_sli *psli;
+        uint8_t *pcmd;
+        uint16_t cmdsize;
+        int rc;
+
+        psli = &phba->sli;
+        cmdsize = oldiocb->iocb.unsli3.rcvsli3.acc_len;
+
+        elsiocb = lpfc_prep_els_iocb(vport, 0, cmdsize, oldiocb->retry, ndlp,
+                                     ndlp->nlp_DID, ELS_CMD_ACC);
+        if (!elsiocb)
+                return 1;
+
+        elsiocb->iocb.ulpContext = oldiocb->iocb.ulpContext;    /* Xri */
+        /* Xmit ECHO ACC response tag <ulpIoTag> */
+        lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+                         "2876 Xmit ECHO ACC response tag x%x xri x%x\n",
+                         elsiocb->iotag, elsiocb->iocb.ulpContext);
+        pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
+        *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
+        pcmd += sizeof(uint32_t);
+        memcpy(pcmd, data, cmdsize - sizeof(uint32_t));
+
+        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_RSP,
+                "Issue ACC ECHO:  did:x%x flg:x%x",
+                ndlp->nlp_DID, ndlp->nlp_flag, 0);
+
+        phba->fc_stat.elsXmitACC++;
+        elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
+        lpfc_nlp_put(ndlp);
+        elsiocb->context1 = NULL;  /* Don't need ndlp for cmpl,
+                                    * it could be freed */
+
+        rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
+        if (rc == IOCB_ERROR) {
+                lpfc_els_free_iocb(phba, elsiocb);
+                return 1;
+        }
+        return 0;
+}
+
+/**
  * lpfc_els_disc_adisc - Issue remaining adisc iocbs to npr nodes of a vport
  * @vport: pointer to a host virtual N_Port data structure.
  *
@@ -4686,6 +4745,30 @@ lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 }
 
 /**
+ * lpfc_els_rcv_echo - Process an unsolicited echo iocb
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * Return code
+ *   0 - Successfully processed echo iocb (currently always return 0)
+ **/
+static int
+lpfc_els_rcv_echo(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+                  struct lpfc_nodelist *ndlp)
+{
+        uint8_t *pcmd;
+
+        pcmd = (uint8_t *) (((struct lpfc_dmabuf *) cmdiocb->context2)->virt);
+
+        /* skip over first word of echo command to find echo data */
+        pcmd += sizeof(uint32_t);
+
+        lpfc_els_rsp_echo_acc(vport, pcmd, cmdiocb, ndlp);
+        return 0;
+}
+
+/**
  * lpfc_els_rcv_lirr - Process an unsolicited lirr iocb
  * @vport: pointer to a host virtual N_Port data structure.
  * @cmdiocb: pointer to lpfc command iocb data structure.
@@ -4737,6 +4820,89 @@ lpfc_els_rcv_rrq(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 }
 
 /**
+ * lpfc_els_rsp_rls_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
+ * @phba: pointer to lpfc hba data structure.
+ * @pmb: pointer to the driver internal queue element for mailbox command.
+ *
+ * This routine is the completion callback function for the MBX_READ_LNK_STAT
+ * mailbox command. This callback function is to actually send the Accept
+ * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
+ * collects the link statistics from the completion of the MBX_READ_LNK_STAT
+ * mailbox command, constructs the RPS response with the link statistics
+ * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
+ * response to the RPS.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the RPS Accept Response ELS IOCB command.
+ *
+ **/
+static void
+lpfc_els_rsp_rls_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+        MAILBOX_t *mb;
+        IOCB_t *icmd;
+        struct RLS_RSP *rls_rsp;
+        uint8_t *pcmd;
+        struct lpfc_iocbq *elsiocb;
+        struct lpfc_nodelist *ndlp;
+        uint16_t xri;
+        uint32_t cmdsize;
+
+        mb = &pmb->u.mb;
+
+        ndlp = (struct lpfc_nodelist *) pmb->context2;
+        xri = (uint16_t) ((unsigned long)(pmb->context1));
+        pmb->context1 = NULL;
+        pmb->context2 = NULL;
+
+        if (mb->mbxStatus) {
+                mempool_free(pmb, phba->mbox_mem_pool);
+                return;
+        }
+
+        cmdsize = sizeof(struct RLS_RSP) + sizeof(uint32_t);
+        mempool_free(pmb, phba->mbox_mem_pool);
+        elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
+                                     lpfc_max_els_tries, ndlp,
+                                     ndlp->nlp_DID, ELS_CMD_ACC);
+
+        /* Decrement the ndlp reference count from previous mbox command */
+        lpfc_nlp_put(ndlp);
+
+        if (!elsiocb)
+                return;
+
+        icmd = &elsiocb->iocb;
+        icmd->ulpContext = xri;
+
+        pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
+        *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
+        pcmd += sizeof(uint32_t); /* Skip past command */
+        rls_rsp = (struct RLS_RSP *)pcmd;
+
+        rls_rsp->linkFailureCnt = cpu_to_be32(mb->un.varRdLnk.linkFailureCnt);
+        rls_rsp->lossSyncCnt = cpu_to_be32(mb->un.varRdLnk.lossSyncCnt);
+        rls_rsp->lossSignalCnt = cpu_to_be32(mb->un.varRdLnk.lossSignalCnt);
+        rls_rsp->primSeqErrCnt = cpu_to_be32(mb->un.varRdLnk.primSeqErrCnt);
+        rls_rsp->invalidXmitWord = cpu_to_be32(mb->un.varRdLnk.invalidXmitWord);
+        rls_rsp->crcCnt = cpu_to_be32(mb->un.varRdLnk.crcCnt);
+
+        /* Xmit ELS RLS ACC response tag <ulpIoTag> */
+        lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
+                         "2874 Xmit ELS RLS ACC response tag x%x xri x%x, "
+                         "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x\n",
+                         elsiocb->iotag, elsiocb->iocb.ulpContext,
+                         ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
+                         ndlp->nlp_rpi);
+        elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
+        phba->fc_stat.elsXmitACC++;
+        if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
+                lpfc_els_free_iocb(phba, elsiocb);
+}
+
+/**
  * lpfc_els_rsp_rps_acc - Completion callbk func for MBX_READ_LNK_STAT mbox cmd
  * @phba: pointer to lpfc hba data structure.
  * @pmb: pointer to the driver internal queue element for mailbox command.
@@ -4829,7 +4995,155 @@ lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 }
 
 /**
- * lpfc_els_rcv_rps - Process an unsolicited rps iocb
+ * lpfc_els_rcv_rls - Process an unsolicited rls iocb
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes Read Port Status (RPL) IOCB received as an
+ * ELS unsolicited event. It first checks the remote port state. If the
+ * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
+ * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
+ * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
+ * for reading the HBA link statistics. It is for the callback function,
+ * lpfc_els_rsp_rls_acc(), set to the MBX_READ_LNK_STAT mailbox command
+ * to actually sending out RPL Accept (ACC) response.
+ *
+ * Return codes
+ *   0 - Successfully processed rls iocb (currently always return 0)
+ **/
+static int
+lpfc_els_rcv_rls(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+                 struct lpfc_nodelist *ndlp)
+{
+        struct lpfc_hba *phba = vport->phba;
+        LPFC_MBOXQ_t *mbox;
+        struct lpfc_dmabuf *pcmd;
+        struct ls_rjt stat;
+
+        if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
+            (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
+                /* reject the unsolicited RPS request and done with it */
+                goto reject_out;
+
+        pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
+
+        mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC);
+        if (mbox) {
+                lpfc_read_lnk_stat(phba, mbox);
+                mbox->context1 =
+                    (void *)((unsigned long) cmdiocb->iocb.ulpContext);
+                mbox->context2 = lpfc_nlp_get(ndlp);
+                mbox->vport = vport;
+                mbox->mbox_cmpl = lpfc_els_rsp_rls_acc;
+                if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT)
+                        != MBX_NOT_FINISHED)
+                        /* Mbox completion will send ELS Response */
+                        return 0;
+                /* Decrement reference count used for the failed mbox
+                 * command.
+                 */
+                lpfc_nlp_put(ndlp);
+                mempool_free(mbox, phba->mbox_mem_pool);
+        }
+reject_out:
+        /* issue rejection response */
+        stat.un.b.lsRjtRsvd0 = 0;
+        stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+        stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
+        stat.un.b.vendorUnique = 0;
+        lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
+        return 0;
+}
+
+/**
+ * lpfc_els_rcv_rtv - Process an unsolicited rtv iocb
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ * @ndlp: pointer to a node-list data structure.
+ *
+ * This routine processes Read Timout Value (RTV) IOCB received as an
+ * ELS unsolicited event. It first checks the remote port state. If the
+ * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
+ * state, it invokes the lpfc_els_rsl_reject() routine to send the reject
+ * response. Otherwise, it sends the Accept(ACC) response to a Read Timeout
+ * Value (RTV) unsolicited IOCB event.
+ *
+ * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
+ * will be incremented by 1 for holding the ndlp and the reference to ndlp
+ * will be stored into the context1 field of the IOCB for the completion
+ * callback function to the RPS Accept Response ELS IOCB command.
+ *
+ * Return codes
+ *   0 - Successfully processed rtv iocb (currently always return 0)
+ **/
+static int
+lpfc_els_rcv_rtv(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
+                 struct lpfc_nodelist *ndlp)
+{
+        struct lpfc_hba *phba = vport->phba;
+        struct ls_rjt stat;
+        struct RTV_RSP *rtv_rsp;
+        uint8_t *pcmd;
+        struct lpfc_iocbq *elsiocb;
+        uint32_t cmdsize;
+
+
+        if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
+            (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
+                /* reject the unsolicited RPS request and done with it */
+                goto reject_out;
+
+        cmdsize = sizeof(struct RTV_RSP) + sizeof(uint32_t);
+        elsiocb = lpfc_prep_els_iocb(phba->pport, 0, cmdsize,
+                                     lpfc_max_els_tries, ndlp,
+                                     ndlp->nlp_DID, ELS_CMD_ACC);
+
+        if (!elsiocb)
+                return 1;
+
+        pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
+                *((uint32_t *) (pcmd)) = ELS_CMD_ACC;
+        pcmd += sizeof(uint32_t); /* Skip past command */
+
+        /* use the command's xri in the response */
+        elsiocb->iocb.ulpContext = cmdiocb->iocb.ulpContext;
+
+        rtv_rsp = (struct RTV_RSP *)pcmd;
+
+        /* populate RTV payload */
+        rtv_rsp->ratov = cpu_to_be32(phba->fc_ratov * 1000); /* report msecs */
+        rtv_rsp->edtov = cpu_to_be32(phba->fc_edtov);
+        bf_set(qtov_edtovres, rtv_rsp, phba->fc_edtovResol ? 1 : 0);
+        bf_set(qtov_rttov, rtv_rsp, 0); /* Field is for FC ONLY */
+        rtv_rsp->qtov = cpu_to_be32(rtv_rsp->qtov);
+
+        /* Xmit ELS RLS ACC response tag <ulpIoTag> */
+        lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_ELS,
+                         "2875 Xmit ELS RTV ACC response tag x%x xri x%x, "
+                         "did x%x, nlp_flag x%x, nlp_state x%x, rpi x%x, "
+                         "Data: x%x x%x x%x\n",
+                         elsiocb->iotag, elsiocb->iocb.ulpContext,
+                         ndlp->nlp_DID, ndlp->nlp_flag, ndlp->nlp_state,
+                         ndlp->nlp_rpi,
+                        rtv_rsp->ratov, rtv_rsp->edtov, rtv_rsp->qtov);
+        elsiocb->iocb_cmpl = lpfc_cmpl_els_rsp;
+        phba->fc_stat.elsXmitACC++;
+        if (lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0) == IOCB_ERROR)
+                lpfc_els_free_iocb(phba, elsiocb);
+        return 0;
+
+reject_out:
+        /* issue rejection response */
+        stat.un.b.lsRjtRsvd0 = 0;
+        stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
+        stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
+        stat.un.b.vendorUnique = 0;
+        lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, NULL);
+        return 0;
+}
+
+/* lpfc_els_rcv_rps - Process an unsolicited rps iocb
  * @vport: pointer to a host virtual N_Port data structure.
  * @cmdiocb: pointer to lpfc command iocb data structure.
  * @ndlp: pointer to a node-list data structure.
@@ -5019,7 +5333,6 @@ lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
         pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
         lp = (uint32_t *) pcmd->virt;
         rpl = (RPL *) (lp + 1);
-
         maxsize = be32_to_cpu(rpl->maxsize);
 
         /* We support only one port */
@@ -5838,6 +6151,16 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                 if (newnode)
                         lpfc_nlp_put(ndlp);
                 break;
+        case ELS_CMD_RLS:
+                lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
+                        "RCV RLS:         did:x%x/ste:x%x flg:x%x",
+                        did, vport->port_state, ndlp->nlp_flag);
+
+                phba->fc_stat.elsRcvRLS++;
+                lpfc_els_rcv_rls(vport, elsiocb, ndlp);
+                if (newnode)
+                        lpfc_nlp_put(ndlp);
+                break;
         case ELS_CMD_RPS:
                 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
                         "RCV RPS:         did:x%x/ste:x%x flg:x%x",
@@ -5868,6 +6191,15 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                 if (newnode)
                         lpfc_nlp_put(ndlp);
                 break;
+        case ELS_CMD_RTV:
+                lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
+                        "RCV RTV:        did:x%x/ste:x%x flg:x%x",
+                        did, vport->port_state, ndlp->nlp_flag);
+                phba->fc_stat.elsRcvRTV++;
+                lpfc_els_rcv_rtv(vport, elsiocb, ndlp);
+                if (newnode)
+                        lpfc_nlp_put(ndlp);
+                break;
         case ELS_CMD_RRQ:
                 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
                         "RCV RRQ:         did:x%x/ste:x%x flg:x%x",
@@ -5878,6 +6210,16 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                 if (newnode)
                         lpfc_nlp_put(ndlp);
                 break;
+        case ELS_CMD_ECHO:
+                lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
+                        "RCV ECHO:        did:x%x/ste:x%x flg:x%x",
+                        did, vport->port_state, ndlp->nlp_flag);
+
+                phba->fc_stat.elsRcvECHO++;
+                lpfc_els_rcv_echo(vport, elsiocb, ndlp);
+                if (newnode)
+                        lpfc_nlp_put(ndlp);
+                break;
         default:
                 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_ELS_UNSOL,
                         "RCV ELS cmd:     cmd:x%x did:x%x/ste:x%x",
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index a631647051d9..9b8333456465 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -861,6 +861,47 @@ typedef struct  _RPS_RSP {	/* Structure is in Big Endian format */
         uint32_t crcCnt;
 } RPS_RSP;
 
+struct RLS {                    /* Structure is in Big Endian format */
+        uint32_t rls;
+#define rls_rsvd_SHIFT          24
+#define rls_rsvd_MASK           0x000000ff
+#define rls_rsvd_WORD           rls
+#define rls_did_SHIFT           0
+#define rls_did_MASK            0x00ffffff
+#define rls_did_WORD            rls
+};
+
+struct  RLS_RSP {               /* Structure is in Big Endian format */
+        uint32_t linkFailureCnt;
+        uint32_t lossSyncCnt;
+        uint32_t lossSignalCnt;
+        uint32_t primSeqErrCnt;
+        uint32_t invalidXmitWord;
+        uint32_t crcCnt;
+};
+
+struct RTV_RSP {                /* Structure is in Big Endian format */
+        uint32_t ratov;
+        uint32_t edtov;
+        uint32_t qtov;
+#define qtov_rsvd0_SHIFT        28
+#define qtov_rsvd0_MASK         0x0000000f
+#define qtov_rsvd0_WORD         qtov            /* reserved */
+#define qtov_edtovres_SHIFT     27
+#define qtov_edtovres_MASK      0x00000001
+#define qtov_edtovres_WORD      qtov            /* E_D_TOV Resolution */
+#define qtov__rsvd1_SHIFT       19
+#define qtov_rsvd1_MASK         0x0000003f
+#define qtov_rsvd1_WORD         qtov            /* reserved */
+#define qtov_rttov_SHIFT        18
+#define qtov_rttov_MASK         0x00000001
+#define qtov_rttov_WORD         qtov            /* R_T_TOV value */
+#define qtov_rsvd2_SHIFT        0
+#define qtov_rsvd2_MASK         0x0003ffff
+#define qtov_rsvd2_WORD         qtov            /* reserved */
+};
+
+
 typedef struct  _RPL {          /* Structure is in Big Endian format */
         uint32_t maxsize;
         uint32_t index;