[SCSI] lpfc 8.3.2 : Addition of SLI4 Interface - FCOE Discovery support

SLI4 supports both FC and FCOE, with some extended topology objects.
This patch adss support for the objects, and updates the disovery
engines for their use.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 27 insertions, 7 deletions

diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 6efe459e8dd..2c7eba68626 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -363,7 +363,7 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	if (!mbox)
 		goto out;
 
-	rc = lpfc_reg_login(phba, vport->vpi, icmd->un.rcvels.remoteID,
+	rc = lpfc_reg_rpi(phba, vport->vpi, icmd->un.rcvels.remoteID,
 			    (uint8_t *) sp, mbox, 0);
 	if (rc) {
 		mempool_free(mbox, phba->mbox_mem_pool);
@@ -497,11 +497,19 @@ lpfc_rcv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		lpfc_els_rsp_acc(vport, ELS_CMD_PRLO, cmdiocb, ndlp, NULL);
 	else
 		lpfc_els_rsp_acc(vport, ELS_CMD_ACC, cmdiocb, ndlp, NULL);
+	if ((ndlp->nlp_type & NLP_FABRIC) &&
+		vport->port_type == LPFC_NPIV_PORT) {
+		lpfc_linkdown_port(vport);
+		mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
+		spin_lock_irq(shost->host_lock);
+		ndlp->nlp_flag |= NLP_DELAY_TMO;
+		spin_unlock_irq(shost->host_lock);
 
-	if ((!(ndlp->nlp_type & NLP_FABRIC) &&
-	     ((ndlp->nlp_type & NLP_FCP_TARGET) ||
-	      !(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
-	    (ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
+		ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
+	} else if ((!(ndlp->nlp_type & NLP_FABRIC) &&
+		((ndlp->nlp_type & NLP_FCP_TARGET) ||
+		!(ndlp->nlp_type & NLP_FCP_INITIATOR))) ||
+		(ndlp->nlp_state == NLP_STE_ADISC_ISSUE)) {
 		/* Only try to re-login if this is NOT a Fabric Node */
 		mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ * 1);
 		spin_lock_irq(shost->host_lock);
@@ -569,7 +577,7 @@ lpfc_disc_set_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 {
 	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 
-	if (!ndlp->nlp_rpi) {
+	if (!(ndlp->nlp_flag & NLP_RPI_VALID)) {
 		ndlp->nlp_flag &= ~NLP_NPR_ADISC;
 		return 0;
 	}
@@ -859,7 +867,7 @@ lpfc_cmpl_plogi_plogi_issue(struct lpfc_vport *vport,
 
 	lpfc_unreg_rpi(vport, ndlp);
 
-	if (lpfc_reg_login(phba, vport->vpi, irsp->un.elsreq64.remoteID,
+	if (lpfc_reg_rpi(phba, vport->vpi, irsp->un.elsreq64.remoteID,
 			   (uint8_t *) sp, mbox, 0) == 0) {
 		switch (ndlp->nlp_DID) {
 		case NameServer_DID:
@@ -1070,6 +1078,7 @@ lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
 	struct lpfc_iocbq *cmdiocb, *rspiocb;
 	IOCB_t *irsp;
 	ADISC *ap;
+	int rc;
 
 	cmdiocb = (struct lpfc_iocbq *) arg;
 	rspiocb = cmdiocb->context_un.rsp_iocb;
@@ -1095,6 +1104,15 @@ lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
 		return ndlp->nlp_state;
 	}
 
+	if (phba->sli_rev == LPFC_SLI_REV4) {
+		rc = lpfc_sli4_resume_rpi(ndlp);
+		if (rc) {
+			/* Stay in state and retry. */
+			ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
+			return ndlp->nlp_state;
+		}
+	}
+
 	if (ndlp->nlp_type & NLP_FCP_TARGET) {
 		ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
 		lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
@@ -1102,6 +1120,7 @@ lpfc_cmpl_adisc_adisc_issue(struct lpfc_vport *vport,
 		ndlp->nlp_prev_state = NLP_STE_ADISC_ISSUE;
 		lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
 	}
+
 	return ndlp->nlp_state;
 }
 
@@ -1285,6 +1304,7 @@ lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
 	}
 
 	ndlp->nlp_rpi = mb->un.varWords[0];
+	ndlp->nlp_flag |= NLP_RPI_VALID;
 
 	/* Only if we are not a fabric nport do we issue PRLI */
 	if (!(ndlp->nlp_type & NLP_FABRIC)) {