1 files changed, 62 insertions, 0 deletions
diff --git a/include/linux/can/rx-offload.h b/include/linux/can/rx-offload.h
new file mode 100644
index 000000000..c205c51d7
--- /dev/null
+++ b/include/linux/can/rx-offload.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * linux/can/rx-offload.h
+ *
+ * Copyright (c) 2014 David Jander, Protonic Holland
+ * Copyright (c) 2014-2017 Pengutronix, Marc Kleine-Budde <kernel@pengutronix.de>
+ */
+
+#ifndef _CAN_RX_OFFLOAD_H
+#define _CAN_RX_OFFLOAD_H
+
+#include <linux/netdevice.h>
+#include <linux/can.h>
+
+struct can_rx_offload {
+	struct net_device *dev;
+
+	struct sk_buff *(*mailbox_read)(struct can_rx_offload *offload,
+					unsigned int mb, u32 *timestamp,
+					bool drop);
+
+	struct sk_buff_head skb_queue;
+	struct sk_buff_head skb_irq_queue;
+	u32 skb_queue_len_max;
+
+	unsigned int mb_first;
+	unsigned int mb_last;
+
+	struct napi_struct napi;
+
+	bool inc;
+};
+
+int can_rx_offload_add_timestamp(struct net_device *dev,
+				 struct can_rx_offload *offload);
+int can_rx_offload_add_fifo(struct net_device *dev,
+			    struct can_rx_offload *offload,
+			    unsigned int weight);
+int can_rx_offload_add_manual(struct net_device *dev,
+			      struct can_rx_offload *offload,
+			      unsigned int weight);
+int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload,
+					 u64 reg);
+int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload);
+int can_rx_offload_queue_timestamp(struct can_rx_offload *offload,
+				   struct sk_buff *skb, u32 timestamp);
+unsigned int can_rx_offload_get_echo_skb(struct can_rx_offload *offload,
+					 unsigned int idx, u32 timestamp,
+					 unsigned int *frame_len_ptr);
+int can_rx_offload_queue_tail(struct can_rx_offload *offload,
+			      struct sk_buff *skb);
+void can_rx_offload_irq_finish(struct can_rx_offload *offload);
+void can_rx_offload_threaded_irq_finish(struct can_rx_offload *offload);
+void can_rx_offload_del(struct can_rx_offload *offload);
+void can_rx_offload_enable(struct can_rx_offload *offload);
+
+static inline void can_rx_offload_disable(struct can_rx_offload *offload)
+{
+	napi_disable(&offload->napi);
+}
+
+#endif /* !_CAN_RX_OFFLOAD_H */