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 struct sk_buff *(*mailbox_read)(struct can_rx_offload *offload,
19 unsigned int mb, u32 *timestamp,
22 struct sk_buff_head skb_queue;
23 u32 skb_queue_len_max;
25 unsigned int mb_first;
28 struct napi_struct napi;
33 int can_rx_offload_add_timestamp(struct net_device *dev,
34 struct can_rx_offload *offload);
35 int can_rx_offload_add_fifo(struct net_device *dev,
36 struct can_rx_offload *offload,
38 int can_rx_offload_add_manual(struct net_device *dev,
39 struct can_rx_offload *offload,
41 int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload,
43 int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload);
44 int can_rx_offload_queue_sorted(struct can_rx_offload *offload,
45 struct sk_buff *skb, u32 timestamp);
46 unsigned int can_rx_offload_get_echo_skb(struct can_rx_offload *offload,
47 unsigned int idx, u32 timestamp,
48 unsigned int *frame_len_ptr);
49 int can_rx_offload_queue_tail(struct can_rx_offload *offload,
51 void can_rx_offload_del(struct can_rx_offload *offload);
52 void can_rx_offload_enable(struct can_rx_offload *offload);
54 static inline void can_rx_offload_schedule(struct can_rx_offload *offload)
56 napi_schedule(&offload->napi);
59 static inline void can_rx_offload_disable(struct can_rx_offload *offload)
61 napi_disable(&offload->napi);
64 #endif /* !_CAN_RX_OFFLOAD_H */