scsi: lpfc: Fix ADISC reception terminating login state if a NVME target

If a target issues an ADISC to the port and the target is a NVME target,
the driver is inadvertantly invalidating the login and marking the remote
port as logged out. Communication with the target is lost.

Revise the ADISC check so that FCP or NVME targets will be marked valid at
the end of ADISC processing.  Enhance logging to recognize condition
better.

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

diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index d76d760..f4eea52 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -614,7 +614,7 @@ lpfc_rcv_padisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
                }
 out:
                /* If we are authenticated, move to the proper state */
-               if (ndlp->nlp_type & NLP_FCP_TARGET)
+               if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET))
                        lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
                else
                        lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
@@ -2903,18 +2903,21 @@ lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
        uint32_t(*func) (struct lpfc_vport *, struct lpfc_nodelist *, void *,
                         uint32_t);
        uint32_t got_ndlp = 0;
+       uint32_t data1;
 
        if (lpfc_nlp_get(ndlp))
                got_ndlp = 1;
 
        cur_state = ndlp->nlp_state;
 
+       data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) |
+               ((uint32_t)ndlp->nlp_type));
        /* 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 rpi x%x Data: x%x x%x\n",
                         evt, ndlp->nlp_DID, cur_state, ndlp->nlp_rpi,
-                        ndlp->nlp_flag, ndlp->nlp_fc4_type);
+                        ndlp->nlp_flag, data1);
 
        lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
                 "DSM in:          evt:%d ste:%d did:x%x",
@@ -2925,10 +2928,13 @@ lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 
        /* DSM out state <rc> on NPort <nlp_DID> */
        if (got_ndlp) {
+               data1 = (((uint32_t)ndlp->nlp_fc4_type << 16) |
+                       ((uint32_t)ndlp->nlp_type));
                lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
                         "0212 DSM out state %d on NPort x%x "
-                        "rpi x%x Data: x%x\n",
-                        rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag);
+                        "rpi x%x Data: x%x x%x\n",
+                        rc, ndlp->nlp_DID, ndlp->nlp_rpi, ndlp->nlp_flag,
+                        data1);
 
                lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
                        "DSM out:         ste:%d did:x%x flg:x%x",