---

yaml
---
r: 328803
b: refs/heads/master
c: 086a345
h: refs/heads/master
i:
  328801: c98275e
  328799: 694b26d
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0e58076b376824875e7e509b8dd352377a41cbbc
+refs/heads/master: 086a345f9d53dbc57243ee8d7764e255cb6bbd64

trunk/drivers/scsi/lpfc/lpfc_crtn.h

@@ -457,6 +457,8 @@ int lpfc_sli4_queue_create(struct lpfc_hba *);
 void lpfc_sli4_queue_destroy(struct lpfc_hba *);
 void lpfc_sli4_abts_err_handler(struct lpfc_hba *, struct lpfc_nodelist *,
 				struct sli4_wcqe_xri_aborted *);
+void lpfc_sli_abts_recover_port(struct lpfc_vport *,
+				struct lpfc_nodelist *);
 int lpfc_hba_init_link_fc_topology(struct lpfc_hba *, uint32_t, uint32_t);
 int lpfc_issue_reg_vfi(struct lpfc_vport *);
 int lpfc_issue_unreg_vfi(struct lpfc_vport *);

trunk/drivers/scsi/lpfc/lpfc_debugfs.c

@@ -559,6 +559,9 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
 		case NLP_STE_PRLI_ISSUE:
 			statep = "PRLI  ";
 			break;
+		case NLP_STE_LOGO_ISSUE:
+			statep = "LOGO  ";
+			break;
 		case NLP_STE_UNMAPPED_NODE:
 			statep = "UNMAP ";
 			break;
@@ -583,8 +586,13 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
 			"WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x ",
 			*name, *(name+1), *(name+2), *(name+3),
 			*(name+4), *(name+5), *(name+6), *(name+7));
-		len +=  snprintf(buf+len, size-len, "RPI:%03d flag:x%08x ",
-			ndlp->nlp_rpi, ndlp->nlp_flag);
+		if (ndlp->nlp_flag & NLP_RPI_REGISTERED)
+			len +=  snprintf(buf+len, size-len, "RPI:%03d ",
+				ndlp->nlp_rpi);
+		else
+			len +=  snprintf(buf+len, size-len, "RPI:none ");
+		len +=  snprintf(buf+len, size-len, "flag:x%08x ",
+			ndlp->nlp_flag);
 		if (!ndlp->nlp_type)
 			len +=  snprintf(buf+len, size-len, "UNKNOWN_TYPE ");
 		if (ndlp->nlp_type & NLP_FC_NODE)

trunk/drivers/scsi/lpfc/lpfc_disc.h

@@ -145,6 +145,7 @@ struct lpfc_node_rrq {
 #define NLP_RCV_PLOGI      0x00080000	/* Rcv'ed PLOGI from remote system */
 #define NLP_LOGO_ACC       0x00100000	/* Process LOGO after ACC completes */
 #define NLP_TGT_NO_SCSIID  0x00200000	/* good PRLI but no binding for scsid */
+#define NLP_ISSUE_LOGO     0x00400000	/* waiting to issue a LOGO */
 #define NLP_ACC_REGLOGIN   0x01000000	/* Issue Reg Login after successful
 					   ACC */
 #define NLP_NPR_ADISC      0x02000000	/* Issue ADISC when dq'ed from
@@ -201,10 +202,11 @@ struct lpfc_node_rrq {
 #define NLP_STE_ADISC_ISSUE       0x2	/* ADISC was sent to NL_PORT */
 #define NLP_STE_REG_LOGIN_ISSUE   0x3	/* REG_LOGIN was issued for NL_PORT */
 #define NLP_STE_PRLI_ISSUE        0x4	/* PRLI was sent to NL_PORT */
-#define NLP_STE_UNMAPPED_NODE     0x5	/* PRLI completed from NL_PORT */
-#define NLP_STE_MAPPED_NODE       0x6	/* Identified as a FCP Target */
-#define NLP_STE_NPR_NODE          0x7	/* NPort disappeared */
-#define NLP_STE_MAX_STATE         0x8
+#define NLP_STE_LOGO_ISSUE	  0x5	/* LOGO was sent to NL_PORT */
+#define NLP_STE_UNMAPPED_NODE     0x6	/* PRLI completed from NL_PORT */
+#define NLP_STE_MAPPED_NODE       0x7	/* Identified as a FCP Target */
+#define NLP_STE_NPR_NODE          0x8	/* NPort disappeared */
+#define NLP_STE_MAX_STATE         0x9
 #define NLP_STE_FREED_NODE        0xff	/* node entry was freed to MEM_NLP */
 
 /* For UNUSED_NODE state, the node has just been allocated.

trunk/drivers/scsi/lpfc/lpfc_els.c

@@ -2385,6 +2385,8 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 	IOCB_t *irsp;
 	struct lpfc_sli *psli;
 	struct lpfcMboxq *mbox;
+	unsigned long flags;
+	uint32_t skip_recovery = 0;
 
 	psli = &phba->sli;
 	/* we pass cmdiocb to state machine which needs rspiocb as well */
@@ -2399,47 +2401,52 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		"LOGO cmpl:       status:x%x/x%x did:x%x",
 		irsp->ulpStatus, irsp->un.ulpWord[4],
 		ndlp->nlp_DID);
+
 	/* LOGO completes to NPort <nlp_DID> */
 	lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
 			 "0105 LOGO completes to NPort x%x "
 			 "Data: x%x x%x x%x x%x\n",
 			 ndlp->nlp_DID, irsp->ulpStatus, irsp->un.ulpWord[4],
 			 irsp->ulpTimeout, vport->num_disc_nodes);
-	/* Check to see if link went down during discovery */
-	if (lpfc_els_chk_latt(vport))
+
+	if (lpfc_els_chk_latt(vport)) {
+		skip_recovery = 1;
 		goto out;
+	}
 
+	/* Check to see if link went down during discovery */
 	if (ndlp->nlp_flag & NLP_TARGET_REMOVE) {
 	        /* NLP_EVT_DEVICE_RM should unregister the RPI
 		 * which should abort all outstanding IOs.
 		 */
 		lpfc_disc_state_machine(vport, ndlp, cmdiocb,
 					NLP_EVT_DEVICE_RM);
+		skip_recovery = 1;
 		goto out;
 	}
 
 	if (irsp->ulpStatus) {
 		/* Check for retry */
-		if (lpfc_els_retry(phba, cmdiocb, rspiocb))
+		if (lpfc_els_retry(phba, cmdiocb, rspiocb)) {
 			/* ELS command is being retried */
+			skip_recovery = 1;
 			goto out;
+		}
 		/* LOGO failed */
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
 				 "2756 LOGO failure DID:%06X Status:x%x/x%x\n",
 				 ndlp->nlp_DID, irsp->ulpStatus,
 				 irsp->un.ulpWord[4]);
 		/* Do not call DSM for lpfc_els_abort'ed ELS cmds */
-		if (lpfc_error_lost_link(irsp))
+		if (lpfc_error_lost_link(irsp)) {
+			skip_recovery = 1;
 			goto out;
-		else
-			lpfc_disc_state_machine(vport, ndlp, cmdiocb,
-						NLP_EVT_CMPL_LOGO);
-	} else
-		/* Good status, call state machine.
-		 * This will unregister the rpi if needed.
-		 */
-		lpfc_disc_state_machine(vport, ndlp, cmdiocb,
-					NLP_EVT_CMPL_LOGO);
+		}
+	}
+
+	/* Call state machine. This will unregister the rpi if needed. */
+	lpfc_disc_state_machine(vport, ndlp, cmdiocb, NLP_EVT_CMPL_LOGO);
+
 out:
 	lpfc_els_free_iocb(phba, cmdiocb);
 	/* If we are in pt2pt mode, we could rcv new S_ID on PLOGI */
@@ -2454,9 +2461,30 @@ lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) ==
 				MBX_NOT_FINISHED) {
 				mempool_free(mbox, phba->mbox_mem_pool);
+				skip_recovery = 1;
 			}
 		}
 	}
+
+	/*
+	 * If the node is a target, the handling attempts to recover the port.
+	 * For any other port type, the rpi is unregistered as an implicit
+	 * LOGO.
+	 */
+	if ((ndlp->nlp_type & NLP_FCP_TARGET) && (skip_recovery == 0)) {
+		lpfc_cancel_retry_delay_tmo(vport, ndlp);
+		spin_lock_irqsave(shost->host_lock, flags);
+		ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+		spin_unlock_irqrestore(shost->host_lock, flags);
+
+		lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+				 "3187 LOGO completes to NPort x%x: Start "
+				 "Recovery Data: x%x x%x x%x x%x\n",
+				 ndlp->nlp_DID, irsp->ulpStatus,
+				 irsp->un.ulpWord[4], irsp->ulpTimeout,
+				 vport->num_disc_nodes);
+		lpfc_disc_start(vport);
+	}
 	return;
 }
 
@@ -2519,10 +2547,27 @@ lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 		"Issue LOGO:      did:x%x",
 		ndlp->nlp_DID, 0, 0);
 
+	/*
+	 * If we are issuing a LOGO, we may try to recover the remote NPort
+	 * by issuing a PLOGI later. Even though we issue ELS cmds by the
+	 * VPI, if we have a valid RPI, and that RPI gets unreg'ed while
+	 * that ELS command is in-flight, the HBA returns a IOERR_INVALID_RPI
+	 * for that ELS cmd. To avoid this situation, lets get rid of the
+	 * RPI right now, before any ELS cmds are sent.
+	 */
+	spin_lock_irq(shost->host_lock);
+	ndlp->nlp_flag |= NLP_ISSUE_LOGO;
+	spin_unlock_irq(shost->host_lock);
+	if (lpfc_unreg_rpi(vport, ndlp)) {
+		lpfc_els_free_iocb(phba, elsiocb);
+		return 0;
+	}
+
 	phba->fc_stat.elsXmitLOGO++;
 	elsiocb->iocb_cmpl = lpfc_cmpl_els_logo;
 	spin_lock_irq(shost->host_lock);
 	ndlp->nlp_flag |= NLP_LOGO_SND;
+	ndlp->nlp_flag &= ~NLP_ISSUE_LOGO;
 	spin_unlock_irq(shost->host_lock);
 	rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, elsiocb, 0);
 
@@ -2938,7 +2983,7 @@ lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
 	case ELS_CMD_LOGO:
 		if (!lpfc_issue_els_logo(vport, ndlp, retry)) {
 			ndlp->nlp_prev_state = ndlp->nlp_state;
-			lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+			lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
 		}
 		break;
 	case ELS_CMD_FDISC:
@@ -3291,7 +3336,7 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			return 1;
 		case ELS_CMD_LOGO:
 			ndlp->nlp_prev_state = ndlp->nlp_state;
-			lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
+			lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
 			lpfc_issue_els_logo(vport, ndlp, cmdiocb->retry);
 			return 1;
 		}
@@ -3551,13 +3596,17 @@ lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	lpfc_mbuf_free(phba, mp->virt, mp->phys);
 	kfree(mp);
 	mempool_free(pmb, phba->mbox_mem_pool);
-	if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
-		lpfc_nlp_put(ndlp);
-		/* This is the end of the default RPI cleanup logic for this
-		 * ndlp. If no other discovery threads are using this ndlp.
-		 * we should free all resources associated with it.
-		 */
-		lpfc_nlp_not_used(ndlp);
+	if (ndlp) {
+		if (NLP_CHK_NODE_ACT(ndlp)) {
+			lpfc_nlp_put(ndlp);
+			/* This is the end of the default RPI cleanup logic for
+			 * this ndlp. If no other discovery threads are using
+			 * this ndlp, free all resources associated with it.
+			 */
+			lpfc_nlp_not_used(ndlp);
+		} else {
+			lpfc_drop_node(ndlp->vport, ndlp);
+		}
 	}
 
 	return;
@@ -8003,3 +8052,47 @@ lpfc_sli4_els_xri_aborted(struct lpfc_hba *phba,
 	spin_unlock_irqrestore(&phba->hbalock, iflag);
 	return;
 }
+
+/* lpfc_sli_abts_recover_port - Recover a port that failed a BLS_ABORT req.
+ * @vport: pointer to virtual port object.
+ * @ndlp: nodelist pointer for the impacted node.
+ *
+ * The driver calls this routine in response to an SLI4 XRI ABORT CQE
+ * or an SLI3 ASYNC_STATUS_CN event from the port.  For either event,
+ * the driver is required to send a LOGO to the remote node before it
+ * attempts to recover its login to the remote node.
+ */
+void
+lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
+			   struct lpfc_nodelist *ndlp)
+{
+	struct Scsi_Host *shost;
+	struct lpfc_hba *phba;
+	unsigned long flags = 0;
+
+	shost = lpfc_shost_from_vport(vport);
+	phba = vport->phba;
+	if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
+		lpfc_printf_log(phba, KERN_INFO,
+				LOG_SLI, "3093 No rport recovery needed. "
+				"rport in state 0x%x\n", ndlp->nlp_state);
+		return;
+	}
+	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+			"3094 Start rport recovery on shost id 0x%x "
+			"fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
+			"flags 0x%x\n",
+			shost->host_no, ndlp->nlp_DID,
+			vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
+			ndlp->nlp_flag);
+	/*
+	 * The rport is not responding.  Remove the FCP-2 flag to prevent
+	 * an ADISC in the follow-up recovery code.
+	 */
+	spin_lock_irqsave(shost->host_lock, flags);
+	ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
+	spin_unlock_irqrestore(shost->host_lock, flags);
+	lpfc_issue_els_logo(vport, ndlp, 0);
+	lpfc_nlp_set_state(vport, ndlp, NLP_STE_LOGO_ISSUE);
+}
+

trunk/drivers/scsi/lpfc/lpfc_hbadisc.c

@@ -3989,6 +3989,7 @@ lpfc_nlp_state_name(char *buffer, size_t size, int state)
 		[NLP_STE_ADISC_ISSUE] = "ADISC",
 		[NLP_STE_REG_LOGIN_ISSUE] = "REGLOGIN",
 		[NLP_STE_PRLI_ISSUE] = "PRLI",
+		[NLP_STE_LOGO_ISSUE] = "LOGO",
 		[NLP_STE_UNMAPPED_NODE] = "UNMAPPED",
 		[NLP_STE_MAPPED_NODE] = "MAPPED",
 		[NLP_STE_NPR_NODE] = "NPR",
@@ -4355,6 +4356,26 @@ lpfc_no_rpi(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
 	return 0;
 }
 
+/**
+ * lpfc_nlp_logo_unreg - Unreg mailbox completion handler before LOGO
+ * @phba: Pointer to HBA context object.
+ * @pmb: Pointer to mailbox object.
+ *
+ * This function will issue an ELS LOGO command after completing
+ * the UNREG_RPI.
+ **/
+void
+lpfc_nlp_logo_unreg(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
+{
+	struct lpfc_vport  *vport = pmb->vport;
+	struct lpfc_nodelist *ndlp;
+
+	ndlp = (struct lpfc_nodelist *)(pmb->context1);
+	if (!ndlp)
+		return;
+	lpfc_issue_els_logo(vport, ndlp, 0);
+}
+
 /*
  * Free rpi associated with LPFC_NODELIST entry.
  * This routine is called from lpfc_freenode(), when we are removing
@@ -4379,9 +4400,16 @@ lpfc_unreg_rpi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 			rpi = ndlp->nlp_rpi;
 			if (phba->sli_rev == LPFC_SLI_REV4)
 				rpi = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
+
 			lpfc_unreg_login(phba, vport->vpi, rpi, mbox);
 			mbox->vport = vport;
-			mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			if (ndlp->nlp_flag & NLP_ISSUE_LOGO) {
+				mbox->context1 = ndlp;
+				mbox->mbox_cmpl = lpfc_nlp_logo_unreg;
+			} else {
+				mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+			}
+
 			rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
 			if (rc == MBX_NOT_FINISHED)
 				mempool_free(mbox, phba->mbox_mem_pool);
@@ -4524,9 +4552,13 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 		lpfc_disable_node(vport, ndlp);
 	}
 
+
+	/* Don't need to clean up REG_LOGIN64 cmds for Default RPI cleanup */
+
 	/* cleanup any ndlp on mbox q waiting for reglogin cmpl */
 	if ((mb = phba->sli.mbox_active)) {
 		if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
+		   !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
 		   (ndlp == (struct lpfc_nodelist *) mb->context2)) {
 			mb->context2 = NULL;
 			mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
@@ -4537,6 +4569,7 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 	/* Cleanup REG_LOGIN completions which are not yet processed */
 	list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
 		if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) ||
+			(mb->mbox_flag & LPFC_MBX_IMED_UNREG) ||
 			(ndlp != (struct lpfc_nodelist *) mb->context2))
 			continue;
 
@@ -4546,6 +4579,7 @@ lpfc_cleanup_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 
 	list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
 		if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) &&
+		   !(mb->mbox_flag & LPFC_MBX_IMED_UNREG) &&
 		    (ndlp == (struct lpfc_nodelist *) mb->context2)) {
 			mp = (struct lpfc_dmabuf *) (mb->context1);
 			if (mp) {
@@ -4610,7 +4644,7 @@ lpfc_nlp_remove(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
 				mbox->mbox_flag |= LPFC_MBX_IMED_UNREG;
 				mbox->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
 				mbox->vport = vport;
-				mbox->context2 = NULL;
+				mbox->context2 = ndlp;
 				rc =lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
 				if (rc == MBX_NOT_FINISHED) {
 					mempool_free(mbox, phba->mbox_mem_pool);