]> Git Repo - linux.git/blame - include/linux/can/rx-offload.h
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux.git] / include / linux / can / rx-offload.h
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1/*
2 * linux/can/rx-offload.h
3 *
4 * Copyright (c) 2014 David Jander, Protonic Holland
5 * Copyright (c) 2014-2017 Pengutronix, Marc Kleine-Budde <[email protected]>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the version 2 of the GNU General Public License
9 * as published by the Free Software Foundation
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 */
16
17#ifndef _CAN_RX_OFFLOAD_H
18#define _CAN_RX_OFFLOAD_H
19
20#include <linux/netdevice.h>
21#include <linux/can.h>
22
23struct can_rx_offload {
24 struct net_device *dev;
25
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26 unsigned int (*mailbox_read)(struct can_rx_offload *offload, struct can_frame *cf,
27 u32 *timestamp, unsigned int mb);
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28
29 struct sk_buff_head skb_queue;
30 u32 skb_queue_len_max;
31
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32 unsigned int mb_first;
33 unsigned int mb_last;
34
d254586c 35 struct napi_struct napi;
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36
37 bool inc;
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38};
39
3abbac0b 40int can_rx_offload_add_timestamp(struct net_device *dev, struct can_rx_offload *offload);
d254586c 41int can_rx_offload_add_fifo(struct net_device *dev, struct can_rx_offload *offload, unsigned int weight);
3abbac0b 42int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload, u64 reg);
d254586c 43int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload);
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44int can_rx_offload_queue_sorted(struct can_rx_offload *offload,
45 struct sk_buff *skb, u32 timestamp);
46unsigned int can_rx_offload_get_echo_skb(struct can_rx_offload *offload,
47 unsigned int idx, u32 timestamp);
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48int can_rx_offload_queue_tail(struct can_rx_offload *offload,
49 struct sk_buff *skb);
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50void can_rx_offload_reset(struct can_rx_offload *offload);
51void can_rx_offload_del(struct can_rx_offload *offload);
52void can_rx_offload_enable(struct can_rx_offload *offload);
53
54static inline void can_rx_offload_schedule(struct can_rx_offload *offload)
55{
56 napi_schedule(&offload->napi);
57}
58
59static inline void can_rx_offload_disable(struct can_rx_offload *offload)
60{
61 napi_disable(&offload->napi);
62}
63
64#endif /* !_CAN_RX_OFFLOAD_H */
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