Commit b4b3417c authored by James Smart's avatar James Smart Committed by Martin K. Petersen
Browse files

scsi: lpfc: Add additional discovery log messages 

When debugging a recent discovery customer problem it was very hard to tell
what was happening with the existing discovery log messages. To fully debug
the issue additional log messages were necessary.

Add or extend log messages so that sufficient information is present for
debugging.

Link: https://lore.kernel.org/r/20191018211832.7917-16-jsmart2021@gmail.com


Signed-off-by: default avatarDick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: default avatarJames Smart <jsmart2021@gmail.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 83c6cb1a

drivers/scsi/lpfc/lpfc_ct.c

+19 −3
Original line number Diff line number Diff line
@@ -763,9 +763,11 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 
		    cpu_to_be16(SLI_CT_RESPONSE_FS_ACC)) {

			lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

					 "0208 NameServer Rsp Data: x%x x%x "

					 "sz x%x\n",

					 "x%x x%x sz x%x\n",

					 vport->fc_flag,

					 CTreq->un.gid.Fc4Type,

					 vport->num_disc_nodes,

					 vport->gidft_inp,

					 irsp->un.genreq64.bdl.bdeSize);



			lpfc_ns_rsp(vport,
@@ -961,9 +963,13 @@ lpfc_cmpl_ct_cmd_gid_pt(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 
		if (CTrsp->CommandResponse.bits.CmdRsp ==

		    cpu_to_be16(SLI_CT_RESPONSE_FS_ACC)) {

			lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

					 "4105 NameServer Rsp Data: x%x x%x\n",

					 "4105 NameServer Rsp Data: x%x x%x "

					 "x%x x%x sz x%x\n",

					 vport->fc_flag,

					 CTreq->un.gid.Fc4Type);

					 CTreq->un.gid.Fc4Type,

					 vport->num_disc_nodes,

					 vport->gidft_inp,

					 irsp->un.genreq64.bdl.bdeSize);



			lpfc_ns_rsp(vport,

				    outp,
@@ -1025,6 +1031,11 @@ lpfc_cmpl_ct_cmd_gid_pt(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 
		}

		vport->gidft_inp--;

	}



	lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

			 "6450 GID_PT cmpl inp %d disc %d\n",

			 vport->gidft_inp, vport->num_disc_nodes);



	/* Link up / RSCN discovery */

	if ((vport->num_disc_nodes == 0) &&

	    (vport->gidft_inp == 0)) {
@@ -1159,6 +1170,11 @@ out: 
	/* Link up / RSCN discovery */

	if (vport->num_disc_nodes)

		vport->num_disc_nodes--;



	lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

			 "6451 GFF_ID cmpl inp %d disc %d\n",

			 vport->gidft_inp, vport->num_disc_nodes);



	if (vport->num_disc_nodes == 0) {

		/*

		 * The driver has cycled through all Nports in the RSCN payload.

drivers/scsi/lpfc/lpfc_els.c

+8 −2
Original line number Diff line number Diff line
@@ -5265,6 +5265,11 @@ lpfc_els_disc_plogi(struct lpfc_vport *vport) 
			}

		}

	}



	lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

			 "6452 Discover PLOGI %d flag x%x\n",

			 sentplogi, vport->fc_flag);



	if (sentplogi) {

		lpfc_set_disctmo(vport);

	}
@@ -6668,9 +6673,10 @@ lpfc_els_handle_rscn(struct lpfc_vport *vport) 


	/* RSCN processed */

	lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

			 "0215 RSCN processed Data: x%x x%x x%x x%x\n",

			 "0215 RSCN processed Data: x%x x%x x%x x%x x%x x%x\n",

			 vport->fc_flag, 0, vport->fc_rscn_id_cnt,

			 vport->port_state);

			 vport->port_state, vport->num_disc_nodes,

			 vport->gidft_inp);



	/* To process RSCN, first compare RSCN data with NameServer */

	vport->fc_ns_retry = 0;

drivers/scsi/lpfc/lpfc_hbadisc.c

+35 −4
Original line number Diff line number Diff line
@@ -5404,6 +5404,13 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 
		if (!ndlp)

			return NULL;

		lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);



		lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

				 "6453 Setup New Node 2B_DISC x%x "

				 "Data:x%x x%x x%x\n",

				 ndlp->nlp_DID, ndlp->nlp_flag,

				 ndlp->nlp_state, vport->fc_flag);



		spin_lock_irq(shost->host_lock);

		ndlp->nlp_flag |= NLP_NPR_2B_DISC;

		spin_unlock_irq(shost->host_lock);
@@ -5417,6 +5424,12 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 
					 "0014 Could not enable ndlp\n");

			return NULL;

		}

		lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

				 "6454 Setup Enabled Node 2B_DISC x%x "

				 "Data:x%x x%x x%x\n",

				 ndlp->nlp_DID, ndlp->nlp_flag,

				 ndlp->nlp_state, vport->fc_flag);



		spin_lock_irq(shost->host_lock);

		ndlp->nlp_flag |= NLP_NPR_2B_DISC;

		spin_unlock_irq(shost->host_lock);
@@ -5436,6 +5449,12 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 
			 */

			lpfc_cancel_retry_delay_tmo(vport, ndlp);



			lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

					 "6455 Setup RSCN Node 2B_DISC x%x "

					 "Data:x%x x%x x%x\n",

					 ndlp->nlp_DID, ndlp->nlp_flag,

					 ndlp->nlp_state, vport->fc_flag);



			/* NVME Target mode waits until rport is known to be

			 * impacted by the RSCN before it transitions.  No

			 * active management - just go to NPR provided the
@@ -5458,9 +5477,21 @@ lpfc_setup_disc_node(struct lpfc_vport *vport, uint32_t did) 
			spin_lock_irq(shost->host_lock);

			ndlp->nlp_flag |= NLP_NPR_2B_DISC;

			spin_unlock_irq(shost->host_lock);

		} else

		} else {

			lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

					 "6456 Skip Setup RSCN Node x%x "

					 "Data:x%x x%x x%x\n",

					 ndlp->nlp_DID, ndlp->nlp_flag,

					 ndlp->nlp_state, vport->fc_flag);

			ndlp = NULL;

		}

	} else {

		lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

				 "6457 Setup Active Node 2B_DISC x%x "

				 "Data:x%x x%x x%x\n",

				 ndlp->nlp_DID, ndlp->nlp_flag,

				 ndlp->nlp_state, vport->fc_flag);



		/* If the initiator received a PLOGI from this NPort or if the

		 * initiator is already in the process of discovery on it,

		 * there's no need to try to discover it again.
@@ -5612,10 +5643,10 @@ lpfc_disc_start(struct lpfc_vport *vport) 


	/* Start Discovery state <hba_state> */

	lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,

			 "0202 Start Discovery hba state x%x "

			 "Data: x%x x%x x%x\n",

			 "0202 Start Discovery port state x%x "

			 "flg x%x Data: x%x x%x x%x\n",

			 vport->port_state, vport->fc_flag, vport->fc_plogi_cnt,

			 vport->fc_adisc_cnt);

			 vport->fc_adisc_cnt, vport->fc_npr_cnt);



	/* First do ADISCs - if any */

	num_sent = lpfc_els_disc_adisc(vport);

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