scsi: lpfc: Correct loss of fc4 type on remote port address change

An address change for a remote port cause PRLI for the wrong protocol
to be sent.  The node copy done in the discovery code skipped copying
the fc4 protocols supported as well.

Fix the copy logic for the address change.  Beefed up log messages in
this area as well.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index a200cdaf34a658cfe01b91dd4c2622323f2f0dab..ebd6c7251ad87de820f2cb4754a24e24499be5e2 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -1556,8 +1556,10 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
         */
        new_ndlp = lpfc_findnode_wwpn(vport, &sp->portName);
 
+       /* return immediately if the WWPN matches ndlp */
        if (new_ndlp == ndlp && NLP_CHK_NODE_ACT(new_ndlp))
                return ndlp;
+
        if (phba->sli_rev == LPFC_SLI_REV4) {
                active_rrqs_xri_bitmap = mempool_alloc(phba->active_rrq_pool,
                                                       GFP_KERNEL);
@@ -1566,9 +1568,13 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
                               phba->cfg_rrq_xri_bitmap_sz);
        }
 
-       lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
-                "3178 PLOGI confirm: ndlp %p x%x: new_ndlp %p\n",
-                ndlp, ndlp->nlp_DID, new_ndlp);
+       lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE,
+                        "3178 PLOGI confirm: ndlp x%x x%x x%x: "
+                        "new_ndlp x%x x%x x%x\n",
+                        ndlp->nlp_DID, ndlp->nlp_flag,  ndlp->nlp_fc4_type,
+                        (new_ndlp ? new_ndlp->nlp_DID : 0),
+                        (new_ndlp ? new_ndlp->nlp_flag : 0),
+                        (new_ndlp ? new_ndlp->nlp_fc4_type : 0));
 
        if (!new_ndlp) {
                rc = memcmp(&ndlp->nlp_portname, name,
@@ -1617,6 +1623,14 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
                               phba->cfg_rrq_xri_bitmap_sz);
        }
 
+       /* At this point in this routine, we know new_ndlp will be
+        * returned. however, any previous GID_FTs that were done
+        * would have updated nlp_fc4_type in ndlp, so we must ensure
+        * new_ndlp has the right value.
+        */
+       if (vport->fc_flag & FC_FABRIC)
+               new_ndlp->nlp_fc4_type = ndlp->nlp_fc4_type;
+
        lpfc_unreg_rpi(vport, new_ndlp);
        new_ndlp->nlp_DID = ndlp->nlp_DID;
        new_ndlp->nlp_prev_state = ndlp->nlp_prev_state;
@@ -1666,7 +1680,6 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
                if (ndlp->nrport) {
                        ndlp->nrport = NULL;
                        lpfc_nlp_put(ndlp);
-                       new_ndlp->nlp_fc4_type = ndlp->nlp_fc4_type;
                }
 
                /* We shall actually free the ndlp with both nlp_DID and
@@ -1740,6 +1753,12 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
            active_rrqs_xri_bitmap)
                mempool_free(active_rrqs_xri_bitmap,
                             phba->active_rrq_pool);
+
+       lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS | LOG_NODE,
+                        "3173 PLOGI confirm exit: new_ndlp x%x x%x x%x\n",
+                        new_ndlp->nlp_DID, new_ndlp->nlp_flag,
+                        new_ndlp->nlp_fc4_type);
+
        return new_ndlp;
 }
 

diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 394ffbe9cb6d729feca12a7d815d48be5b5b84a2..6827ffef3261ebf46f743d327df7929ed9db94f5 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -2868,8 +2868,9 @@ lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
        /* DSM in event <evt> on NPort <nlp_DID> in state <cur_state> */
        lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "0211 DSM in event x%x on NPort x%x in "
-                        "state %d Data: x%x\n",
-                        evt, ndlp->nlp_DID, cur_state, ndlp->nlp_flag);
+                        "state %d Data: x%x x%x\n",
+                        evt, ndlp->nlp_DID, cur_state,
+                        ndlp->nlp_flag, ndlp->nlp_fc4_type);
 
        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
                 "DSM in:          evt:%d ste:%d did:x%x",