NTB: Disable interrupts and poll under high load

[linux-drm-fsl-dcu.git] / drivers / ntb / ntb_hw.h

diff --git a/drivers/ntb/ntb_hw.h b/drivers/ntb/ntb_hw.h
index 0a31cedae7d42f9227d125bfabe97297b47255d9..bbdb7edca10cd8647e4b739dfab29f1ed33fc1e6 100644 (file)
--- a/drivers/ntb/ntb_hw.h
+++ b/drivers/ntb/ntb_hw.h
@@ -106,10 +106,11 @@ struct ntb_mw {
 };
 
 struct ntb_db_cb {
-       void (*callback) (void *data, int db_num);
+       int (*callback)(void *data, int db_num);
        unsigned int db_num;
        void *data;
        struct ntb_device *ndev;
+       struct tasklet_struct irq_work;
 };
 
 struct ntb_device {
@@ -228,8 +229,8 @@ struct ntb_device *ntb_register_transport(struct pci_dev *pdev,
 void ntb_unregister_transport(struct ntb_device *ndev);
 void ntb_set_mw_addr(struct ntb_device *ndev, unsigned int mw, u64 addr);
 int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx,
-                            void *data, void (*db_cb_func) (void *data,
-                                                            int db_num));
+                            void *data, int (*db_cb_func)(void *data,
+                                                          int db_num));
 void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx);
 int ntb_register_event_callback(struct ntb_device *ndev,
                                void (*event_cb_func) (void *handle,