From: Rob Evers <revers@redhat.com>
Date: Wed, 27 Oct 2010 15:23:12 -0400
Subject: [scsi] lpfc: unreg all rpi mbox command before unreg vpi
Message-id: <1288192999-24221-21-git-send-email-revers@redhat.com>
Patchwork-id: 28946
O-Subject: [RHEL5.6 PATCH 20/27] lpfc: Added unreg all rpi mailbox command
	before unreg vpi.
Bugzilla: 639028

From: Rob Evers on behalf of Emulex <revers@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=636289

diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index 022e037..b5c2cfd 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -50,6 +50,8 @@ int lpfc_reg_rpi(struct lpfc_hba *, uint16_t, uint32_t, uint8_t *,
 void lpfc_set_var(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t, uint32_t);
 void lpfc_unreg_login(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
 void lpfc_unreg_did(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
+void lpfc_sli4_unreg_all_rpis(struct lpfc_vport *);
+
 void lpfc_reg_vpi(struct lpfc_vport *, LPFC_MBOXQ_t *);
 void lpfc_register_new_vport(struct lpfc_hba *, struct lpfc_vport *,
 			struct lpfc_nodelist *);
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 15a0af8..d50d217 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -581,6 +581,10 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 			lpfc_unreg_rpi(vport, np);
 		}
 		lpfc_cleanup_pending_mbox(vport);
+
+		if (phba->sli_rev == LPFC_SLI_REV4)
+			lpfc_sli4_unreg_all_rpis(vport);
+
 		if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) {
 			lpfc_mbx_unreg_vpi(vport);
 			spin_lock_irq(shost->host_lock);
@@ -6622,6 +6626,8 @@ lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 
 		default:
 			/* Try to recover from this error */
+			if (phba->sli_rev == LPFC_SLI_REV4)
+				lpfc_sli4_unreg_all_rpis(vport);
 			lpfc_mbx_unreg_vpi(vport);
 			spin_lock_irq(shost->host_lock);
 			vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
@@ -6909,6 +6915,10 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			lpfc_unreg_rpi(vport, np);
 		}
 		lpfc_cleanup_pending_mbox(vport);
+
+		if (phba->sli_rev == LPFC_SLI_REV4)
+			lpfc_sli4_unreg_all_rpis(vport);
+
 		lpfc_mbx_unreg_vpi(vport);
 		spin_lock_irq(shost->host_lock);
 		vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index f1cd00a..a95dcfd 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -837,6 +837,8 @@ lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove)
 					     : NLP_EVT_DEVICE_RECOVERY);
 	}
 	if (phba->sli3_options & LPFC_SLI3_VPORT_TEARDOWN) {
+		if (phba->sli_rev == LPFC_SLI_REV4)
+			lpfc_sli4_unreg_all_rpis(vport);
 		rc = lpfc_mbx_unreg_vpi(vport);
 		spin_lock_irq(shost->host_lock);
 		vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
@@ -4071,6 +4073,11 @@ lpfc_unreg_all_rpis(struct lpfc_vport *vport)
 	LPFC_MBOXQ_t     *mbox;
 	int rc;
 
+	if (phba->sli_rev == LPFC_SLI_REV4) {
+		lpfc_sli4_unreg_all_rpis(vport);
+		return;
+	}
+
 	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (mbox) {
 		lpfc_unreg_login(phba, vport->vpi, 0xffff, mbox);
@@ -5449,6 +5456,8 @@ lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
 			if (ndlp)
 				lpfc_cancel_retry_delay_tmo(vports[i], ndlp);
 			lpfc_cleanup_pending_mbox(vports[i]);
+			if (phba->sli_rev == LPFC_SLI_REV4)
+				lpfc_sli4_unreg_all_rpis(vports[i]);
 			lpfc_mbx_unreg_vpi(vports[i]);
 			shost = lpfc_shost_from_vport(vports[i]);
 			spin_lock_irq(shost->host_lock);
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 2ab7ec1..4793483 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -797,6 +797,34 @@ lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
 }
 
 /**
+ * lpfc_sli4_unreg_all_rpis - unregister all RPIs for a vport on SLI4 HBA.
+ * @vport: pointer to a vport object.
+ *
+ * This routine sends mailbox command to unregister all active RPIs for
+ * a vport.
+ **/
+void
+lpfc_sli4_unreg_all_rpis(struct lpfc_vport *vport)
+{
+	struct lpfc_hba  *phba  = vport->phba;
+	LPFC_MBOXQ_t     *mbox;
+	int rc;
+
+	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (mbox) {
+		lpfc_unreg_login(phba, vport->vpi,
+			vport->vpi + phba->vpi_base, mbox);
+		mbox->u.mb.un.varUnregLogin.rsvd1 = 0x4000 ;
+		mbox->vport = vport;
+		mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+		mbox->context1 = NULL;
+		rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
+		if (rc == MBX_NOT_FINISHED)
+			mempool_free(mbox, phba->mbox_mem_pool);
+	}
+}
+
+/**
  * lpfc_reg_vpi - Prepare a mailbox command for registering vport identifier
  * @phba: pointer to lpfc hba data structure.
  * @vpi: virtual N_Port identifier.