1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/can/rx-offload.h
5 * Copyright (c) 2014 David Jander, Protonic Holland
6 * Copyright (c) 2014-2017 Pengutronix, Marc Kleine-Budde <kernel@pengutronix.de>
9 #ifndef _CAN_RX_OFFLOAD_H
10 #define _CAN_RX_OFFLOAD_H
12 #include <linux/netdevice.h>
13 #include <linux/can.h>
15 struct can_rx_offload {
16 struct net_device *dev;
18 unsigned int (*mailbox_read)(struct can_rx_offload *offload, struct can_frame *cf,
19 u32 *timestamp, unsigned int mb);
21 struct sk_buff_head skb_queue;
22 u32 skb_queue_len_max;
24 unsigned int mb_first;
27 struct napi_struct napi;
32 int can_rx_offload_add_timestamp(struct net_device *dev, struct can_rx_offload *offload);
33 int can_rx_offload_add_fifo(struct net_device *dev, struct can_rx_offload *offload, unsigned int weight);
34 int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload, u64 reg);
35 int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload);
36 int can_rx_offload_queue_sorted(struct can_rx_offload *offload,
37 struct sk_buff *skb, u32 timestamp);
38 unsigned int can_rx_offload_get_echo_skb(struct can_rx_offload *offload,
39 unsigned int idx, u32 timestamp);
40 int can_rx_offload_queue_tail(struct can_rx_offload *offload,
42 void can_rx_offload_reset(struct can_rx_offload *offload);
43 void can_rx_offload_del(struct can_rx_offload *offload);
44 void can_rx_offload_enable(struct can_rx_offload *offload);
46 static inline void can_rx_offload_schedule(struct can_rx_offload *offload)
48 napi_schedule(&offload->napi);
51 static inline void can_rx_offload_disable(struct can_rx_offload *offload)
53 napi_disable(&offload->napi);
56 #endif /* !_CAN_RX_OFFLOAD_H */