isci: Add suspension cases for RNC INVALIDATING, POSTING states.

The RNC can be any of the states in the loop from suspended to
ready when the API "suspend" or "resume" are called.  This change
adds destination states parameters that control the suspension /
resumption action of the RNC statemachine for those transition states.
Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

drivers/scsi/isci/port.c

@@ -1688,17 +1688,6 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor
 			__func__, iport, status);
 
 	}
-
-	/* If the hard reset for the port has failed, consider this
-	 * the same as link failures on all phys in the port.
-	 */
-	if (ret != TMF_RESP_FUNC_COMPLETE) {
-
-		dev_err(&ihost->pdev->dev,
-			"%s: iport = %p; hard reset failed "
-			"(0x%x) - driving explicit link fail for all phys\n",
-			__func__, iport, iport->hard_reset_status);
-	}
 	return ret;
 }
 

drivers/scsi/isci/remote_device.c

@@ -192,7 +192,7 @@ static void isci_remote_device_not_ready(struct isci_host *ihost,
 					 u32 reason)
 {
 	dev_dbg(&ihost->pdev->dev,
-		"%s: isci_device = %p\n", __func__, idev);
+		"%s: isci_device = %p; reason = %d\n", __func__, idev, reason);
 
 	switch (reason) {
 	case SCIC_REMOTE_DEVICE_NOT_READY_STOP_REQUESTED:

drivers/scsi/isci/remote_node_context.h

@@ -141,9 +141,13 @@ const char *rnc_state_name(enum scis_sds_remote_node_context_states state);
  * node context.
  */
 enum sci_remote_node_context_destination_state {
-	SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_UNSPECIFIED,
-	SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_READY,
-	SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL
+	RNC_DEST_UNSPECIFIED,
+	RNC_DEST_READY,
+	RNC_DEST_FINAL,
+	RNC_DEST_SUSPENDED,       /* Set when suspend during post/invalidate */
+	RNC_DEST_SUSPENDED_RESUME /* Set when a resume was done during posting
+				   * or invalidating and already suspending.
+				   */
 };
 
 /**