summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/lpfc/lpfc_nvme.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nvme.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_nvme.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
index 9d99cb915390..fdd16d9f55a1 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -2402,6 +2402,50 @@ lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
#endif
}
+/**
+ * lpfc_nvme_rescan_port - Check to see if we should rescan this remoteport
+ *
+ * If the ndlp represents an NVME Target, that we are logged into,
+ * ping the NVME FC Transport layer to initiate a device rescan
+ * on this remote NPort.
+ */
+void
+lpfc_nvme_rescan_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
+{
+#if (IS_ENABLED(CONFIG_NVME_FC))
+ struct lpfc_nvme_rport *rport;
+ struct nvme_fc_remote_port *remoteport;
+
+ rport = ndlp->nrport;
+
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
+ "6170 Rescan NPort DID x%06x type x%x "
+ "state x%x rport %p\n",
+ ndlp->nlp_DID, ndlp->nlp_type, ndlp->nlp_state, rport);
+ if (!rport)
+ goto input_err;
+ remoteport = rport->remoteport;
+ if (!remoteport)
+ goto input_err;
+
+ /* Only rescan if we are an NVME target in the MAPPED state */
+ if (remoteport->port_role & FC_PORT_ROLE_NVME_DISCOVERY &&
+ ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
+ nvme_fc_rescan_remoteport(remoteport);
+
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC,
+ "6172 NVME rescanned DID x%06x "
+ "port_state x%x\n",
+ ndlp->nlp_DID, remoteport->port_state);
+ }
+ return;
+input_err:
+ lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC,
+ "6169 State error: lport %p, rport%p FCID x%06x\n",
+ vport->localport, ndlp->rport, ndlp->nlp_DID);
+#endif
+}
+
/* lpfc_nvme_unregister_port - unbind the DID and port_role from this rport.
*
* There is no notion of Devloss or rport recovery from the current