Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * linux/can/rx-offload.h
4 *
5 * Copyright (c) 2014 David Jander, Protonic Holland
6 * Copyright (c) 2014-2017 Pengutronix, Marc Kleine-Budde <kernel@pengutronix.de>
7 */
8
9#ifndef _CAN_RX_OFFLOAD_H
10#define _CAN_RX_OFFLOAD_H
11
12#include <linux/netdevice.h>
13#include <linux/can.h>
14
15struct can_rx_offload {
16 struct net_device *dev;
17
18 unsigned int (*mailbox_read)(struct can_rx_offload *offload, struct can_frame *cf,
19 u32 *timestamp, unsigned int mb);
20
21 struct sk_buff_head skb_queue;
22 u32 skb_queue_len_max;
23
24 unsigned int mb_first;
25 unsigned int mb_last;
26
27 struct napi_struct napi;
28
29 bool inc;
30};
31
32int can_rx_offload_add_timestamp(struct net_device *dev, struct can_rx_offload *offload);
33int can_rx_offload_add_fifo(struct net_device *dev, struct can_rx_offload *offload, unsigned int weight);
34int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload, u64 reg);
35int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload);
36int can_rx_offload_queue_sorted(struct can_rx_offload *offload,
37 struct sk_buff *skb, u32 timestamp);
38unsigned int can_rx_offload_get_echo_skb(struct can_rx_offload *offload,
39 unsigned int idx, u32 timestamp);
40int can_rx_offload_queue_tail(struct can_rx_offload *offload,
41 struct sk_buff *skb);
42void can_rx_offload_reset(struct can_rx_offload *offload);
43void can_rx_offload_del(struct can_rx_offload *offload);
44void can_rx_offload_enable(struct can_rx_offload *offload);
45
46static inline void can_rx_offload_schedule(struct can_rx_offload *offload)
47{
48 napi_schedule(&offload->napi);
49}
50
51static inline void can_rx_offload_disable(struct can_rx_offload *offload)
52{
53 napi_disable(&offload->napi);
54}
55
56#endif /* !_CAN_RX_OFFLOAD_H */