[SCSI] lpfc 8.2.8 : Add support for PCI-EEH permanent disabling

Add support for PCI-EEH permanent-disabling a device via lpfc_pci_remove_one()

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index b73968b2b8b4..3606b7098fc1 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -183,6 +183,35 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba)
         atomic_set(&phba->num_cmd_success, 0);
 }
 
+/**
+ * lpfc_scsi_dev_block: set all scsi hosts to block state.
+ * @phba: Pointer to HBA context object.
+ *
+ * This function walks vport list and set each SCSI host to block state
+ * by invoking fc_remote_port_delete() routine. This function is invoked
+ * with EEH when device's PCI slot has been permanently disabled.
+ **/
+void
+lpfc_scsi_dev_block(struct lpfc_hba *phba)
+{
+        struct lpfc_vport **vports;
+        struct Scsi_Host  *shost;
+        struct scsi_device *sdev;
+        struct fc_rport *rport;
+        int i;
+
+        vports = lpfc_create_vport_work_array(phba);
+        if (vports != NULL)
+                for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
+                        shost = lpfc_shost_from_vport(vports[i]);
+                        shost_for_each_device(sdev, shost) {
+                                rport = starget_to_rport(scsi_target(sdev));
+                                fc_remote_port_delete(rport);
+                        }
+                }
+        lpfc_destroy_vport_work_array(phba, vports);
+}
+
 /*
  * This routine allocates a scsi buffer, which contains all the necessary
  * information needed to initiate a SCSI I/O.  The non-DMAable buffer region