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-rw-r--r--include/linux/can/rx-offload.h63
1 files changed, 63 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..f1b38088b
--- /dev/null
+++ b/include/linux/can/rx-offload.h
@@ -0,0 +1,63 @@
+/* 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;
+ 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_sorted(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);
+int can_rx_offload_queue_tail(struct can_rx_offload *offload,
+ struct sk_buff *skb);
+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_schedule(struct can_rx_offload *offload)
+{
+ napi_schedule(&offload->napi);
+}
+
+static inline void can_rx_offload_disable(struct can_rx_offload *offload)
+{
+ napi_disable(&offload->napi);
+}
+
+#endif /* !_CAN_RX_OFFLOAD_H */