[SCSI] lpfc 8.2.2 : Error messages and debugfs updates

Error messages and debugfs updates:
 - Fix up GID_FT error messages
 - Enhance debugfs with slow_ring_trace, dumpslim and nodelist information
 - Add log type (and messages) for vport state changes
 - Enhance log messages when retries ELS fail
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/lpfc/lpfc.h

@@ -335,7 +335,7 @@ struct lpfc_vport {
 	struct dentry *debug_disc_trc;
 	struct dentry *debug_nodelist;
 	struct dentry *vport_debugfs_root;
-	struct lpfc_disc_trc *disc_trc;
+	struct lpfc_debugfs_trc *disc_trc;
 	atomic_t disc_trc_cnt;
 #endif
 };
@@ -547,6 +547,10 @@ struct lpfc_hba {
 #ifdef CONFIG_LPFC_DEBUG_FS
 	struct dentry *hba_debugfs_root;
 	atomic_t debugfs_vport_count;
+	struct dentry *debug_dumpslim;
+	struct dentry *debug_slow_ring_trc;
+	struct lpfc_debugfs_trc *slow_ring_trc;
+	atomic_t slow_ring_trc_cnt;
 #endif
 
 	/* Fields used for heart beat. */

drivers/scsi/lpfc/lpfc_crtn.h

@@ -271,6 +271,8 @@ extern void lpfc_debugfs_initialize(struct lpfc_vport *);
 extern void lpfc_debugfs_terminate(struct lpfc_vport *);
 extern void lpfc_debugfs_disc_trc(struct lpfc_vport *, int, char *, uint32_t,
 	uint32_t, uint32_t);
+extern void lpfc_debugfs_slow_ring_trc(struct lpfc_hba *, char *, uint32_t,
+	uint32_t, uint32_t);
 
 /* Interface exported by fabric iocb scheduler */
 int lpfc_issue_fabric_iocb(struct lpfc_hba *, struct lpfc_iocbq *);

drivers/scsi/lpfc/lpfc_ct.c

@@ -607,7 +607,25 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		} else if (CTrsp->CommandResponse.bits.CmdRsp ==
 			   be16_to_cpu(SLI_CT_RESPONSE_FS_RJT)) {
 			/* NameServer Rsp Error */
-			lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
+			if ((CTrsp->ReasonCode == SLI_CT_UNABLE_TO_PERFORM_REQ)
+			    && (CTrsp->Explanation == SLI_CT_NO_FC4_TYPES)) {
+				lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
+					"%d (%d):0269 No NameServer Entries "
+					"Data: x%x x%x x%x x%x\n",
+					phba->brd_no, vport->vpi,
+					CTrsp->CommandResponse.bits.CmdRsp,
+					(uint32_t) CTrsp->ReasonCode,
+					(uint32_t) CTrsp->Explanation,
+					vport->fc_flag);
+
+				lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
+				"GID_FT no entry  cmd:x%x rsn:x%x exp:x%x",
+				(uint32_t)CTrsp->CommandResponse.bits.CmdRsp,
+				(uint32_t) CTrsp->ReasonCode,
+				(uint32_t) CTrsp->Explanation);
+			}
+			else {
+				lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
 					"%d (%d):0240 NameServer Rsp Error "
 					"Data: x%x x%x x%x x%x\n",
 					phba->brd_no, vport->vpi,
@@ -616,11 +634,13 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 					(uint32_t) CTrsp->Explanation,
 					vport->fc_flag);
 
-			lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
+				lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_CT,
 				"GID_FT rsp err1  cmd:x%x rsn:x%x exp:x%x",
 				(uint32_t)CTrsp->CommandResponse.bits.CmdRsp,
 				(uint32_t) CTrsp->ReasonCode,
 				(uint32_t) CTrsp->Explanation);
+			}
+
 
 		} else {
 			/* NameServer Rsp Error */
@@ -696,7 +716,7 @@ lpfc_cmpl_ct_cmd_gff_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			if ((fbits & FC4_FEATURE_INIT) &&
 			    !(fbits & FC4_FEATURE_TARGET)) {
 				lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
-						"%d (%d):0245 Skip x%x GFF "
+						"%d (%d):0270 Skip x%x GFF "
 						"NameServer Rsp Data: (init) "
 						"x%x x%x\n", phba->brd_no,
 						vport->vpi, did, fbits,

drivers/scsi/lpfc/lpfc_debugfs.h

@@ -22,7 +22,7 @@
 #define _H_LPFC_DEBUG_FS
 
 #ifdef CONFIG_LPFC_DEBUG_FS
-struct lpfc_disc_trc {
+struct lpfc_debugfs_trc {
 	char *fmt;
 	uint32_t data1;
 	uint32_t data2;

drivers/scsi/lpfc/lpfc_els.c

@@ -2033,12 +2033,11 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 	}
 
 	/* No retry ELS command <elsCmd> to remote NPORT <did> */
-	lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
-			"%d (%d):0108 No retry ELS command x%x to remote "
-			"NPORT x%x Data: x%x\n",
-			phba->brd_no, vport->vpi,
-			cmd, did, cmdiocb->retry);
-
+	lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+			 "0108 No retry ELS command x%x to remote "
+			 "NPORT x%x Retried:%d Error:x%x/%x\n",
+			 cmd, did, cmdiocb->retry, irsp->ulpStatus,
+			 irsp->un.ulpWord[4]);
 	return 0;
 }
 

drivers/scsi/lpfc/lpfc_hbadisc.c

@@ -426,10 +426,19 @@ lpfc_work_done(struct lpfc_hba *phba)
 		spin_lock_irq(&phba->hbalock);
 		control = readl(phba->HCregaddr);
 		if (!(control & (HC_R0INT_ENA << LPFC_ELS_RING))) {
+			lpfc_debugfs_slow_ring_trc(phba,
+				"WRK Enable ring: cntl:x%x hacopy:x%x",
+				control, ha_copy, 0);
+
 			control |= (HC_R0INT_ENA << LPFC_ELS_RING);
 			writel(control, phba->HCregaddr);
 			readl(phba->HCregaddr); /* flush */
 		}
+		else {
+			lpfc_debugfs_slow_ring_trc(phba,
+				"WRK Ring ok:     cntl:x%x hacopy:x%x",
+				control, ha_copy, 0);
+		}
 		spin_unlock_irq(&phba->hbalock);
 	}
 	lpfc_work_list_done(phba);

drivers/scsi/lpfc/lpfc_sli.c

@@ -395,6 +395,14 @@ lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	 */
 	nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
 
+	if (pring->ringno == LPFC_ELS_RING) {
+		lpfc_debugfs_slow_ring_trc(phba,
+			"IOCB cmd ring:   wd4:x%08x wd6:x%08x wd7:x%08x",
+			*(((uint32_t *) &nextiocb->iocb) + 4),
+			*(((uint32_t *) &nextiocb->iocb) + 6),
+			*(((uint32_t *) &nextiocb->iocb) + 7));
+	}
+
 	/*
 	 * Issue iocb command to adapter
 	 */
@@ -1542,6 +1550,14 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
 		if (++pring->rspidx >= portRspMax)
 			pring->rspidx = 0;
 
+		if (pring->ringno == LPFC_ELS_RING) {
+			lpfc_debugfs_slow_ring_trc(phba,
+			"IOCB rsp ring:   wd4:x%08x wd6:x%08x wd7:x%08x",
+				*(((uint32_t *) irsp) + 4),
+				*(((uint32_t *) irsp) + 6),
+				*(((uint32_t *) irsp) + 7));
+		}
+
 		writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
 
 		if (list_empty(&(pring->iocb_continueq))) {
@@ -3850,12 +3866,33 @@ lpfc_intr_handler(int irq, void *dev_id)
 			if (status & HA_RXMASK) {
 				spin_lock(&phba->hbalock);
 				control = readl(phba->HCregaddr);
+
+				lpfc_debugfs_slow_ring_trc(phba,
+				"ISR slow ring:   ctl:x%x stat:x%x isrcnt:x%x",
+				control, status,
+				(uint32_t)phba->sli.slistat.sli_intr);
+
 				if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
+					lpfc_debugfs_slow_ring_trc(phba,
+						"ISR Disable ring:"
+						"pwork:x%x hawork:x%x wait:x%x",
+						phba->work_ha, work_ha_copy,
+						(uint32_t)((unsigned long)
+						phba->work_wait));
+
 					control &=
 					    ~(HC_R0INT_ENA << LPFC_ELS_RING);
 					writel(control, phba->HCregaddr);
 					readl(phba->HCregaddr); /* flush */
 				}
+				else {
+					lpfc_debugfs_slow_ring_trc(phba,
+						"ISR slow ring:   pwork:"
+						"x%x hawork:x%x wait:x%x",
+						phba->work_ha, work_ha_copy,
+						(uint32_t)((unsigned long)
+						phba->work_wait));
+				}
 				spin_unlock(&phba->hbalock);
 			}
 		}

drivers/scsi/lpfc/lpfc_vport.c

@@ -326,6 +326,8 @@ lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
 	rc = VPORT_OK;
 
 out:
+	lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
+			"1825 Vport Created.\n");
 	lpfc_host_attrib_init(lpfc_shost_from_vport(vport));
 error_out:
 	return rc;
@@ -371,6 +373,8 @@ disable_vport(struct fc_vport *fc_vport)
 	lpfc_mbx_unreg_vpi(vport);
 
 	lpfc_vport_set_state(vport, FC_VPORT_DISABLED);
+	lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
+			 "1826 Vport Disabled.\n");
 	return VPORT_OK;
 }
 
@@ -408,7 +412,8 @@ enable_vport(struct fc_vport *fc_vport)
 	} else {
 		lpfc_vport_set_state(vport, FC_VPORT_FAILED);
 	}
-
+	lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
+			 "1827 Vport Enabled.\n");
 	return VPORT_OK;
 }
 
@@ -511,7 +516,8 @@ skip_logo:
 	spin_lock_irq(&phba->hbalock);
 	list_del_init(&vport->listentry);
 	spin_unlock_irq(&phba->hbalock);
-
+	lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
+			 "1828 Vport Deleted.\n");
 	rc = VPORT_OK;
 out:
 	scsi_host_put(shost);