1 /* SPDX-License-Identifier: GPL-2.0-only */ <<
2 /* 1 /*
3 * linux/can/rx-offload.h 2 * linux/can/rx-offload.h
4 * 3 *
5 * Copyright (c) 2014 David Jander, Protonic H 4 * Copyright (c) 2014 David Jander, Protonic Holland
6 * Copyright (c) 2014-2017, 2023 Pengutronix, !! 5 * Copyright (c) 2014-2017 Pengutronix, Marc Kleine-Budde <kernel@pengutronix.de>
>> 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.
7 */ 15 */
8 16
9 #ifndef _CAN_RX_OFFLOAD_H 17 #ifndef _CAN_RX_OFFLOAD_H
10 #define _CAN_RX_OFFLOAD_H 18 #define _CAN_RX_OFFLOAD_H
11 19
12 #include <linux/netdevice.h> 20 #include <linux/netdevice.h>
13 #include <linux/can.h> 21 #include <linux/can.h>
14 22
15 struct can_rx_offload { 23 struct can_rx_offload {
16 struct net_device *dev; 24 struct net_device *dev;
17 25
18 struct sk_buff *(*mailbox_read)(struct !! 26 unsigned int (*mailbox_read)(struct can_rx_offload *offload, struct can_frame *cf,
19 unsign !! 27 u32 *timestamp, unsigned int mb);
20 bool d <<
21 28
22 struct sk_buff_head skb_queue; 29 struct sk_buff_head skb_queue;
23 struct sk_buff_head skb_irq_queue; <<
24 u32 skb_queue_len_max; 30 u32 skb_queue_len_max;
25 31
26 unsigned int mb_first; 32 unsigned int mb_first;
27 unsigned int mb_last; 33 unsigned int mb_last;
28 34
29 struct napi_struct napi; 35 struct napi_struct napi;
30 36
31 bool inc; 37 bool inc;
32 }; 38 };
33 39
34 int can_rx_offload_add_timestamp(struct net_de !! 40 int can_rx_offload_add_timestamp(struct net_device *dev, struct can_rx_offload *offload);
35 struct can_rx !! 41 int can_rx_offload_add_fifo(struct net_device *dev, struct can_rx_offload *offload, unsigned int weight);
36 int can_rx_offload_add_fifo(struct net_device !! 42 int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload, u64 reg);
37 struct can_rx_offl <<
38 unsigned int weigh <<
39 int can_rx_offload_add_manual(struct net_devic <<
40 struct can_rx_of <<
41 unsigned int wei <<
42 int can_rx_offload_irq_offload_timestamp(struc <<
43 u64 r <<
44 int can_rx_offload_irq_offload_fifo(struct can 43 int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload);
45 int can_rx_offload_queue_timestamp(struct can_ !! 44 int can_rx_offload_irq_queue_err_skb(struct can_rx_offload *offload, struct sk_buff *skb);
46 struct sk_b !! 45 void can_rx_offload_reset(struct can_rx_offload *offload);
47 unsigned int can_rx_offload_get_echo_skb_queue <<
48 <<
49 <<
50 int can_rx_offload_queue_tail(struct can_rx_of <<
51 struct sk_buff * <<
52 unsigned int can_rx_offload_get_echo_skb_queue <<
53 <<
54 <<
55 void can_rx_offload_irq_finish(struct can_rx_o <<
56 void can_rx_offload_threaded_irq_finish(struct <<
57 void can_rx_offload_del(struct can_rx_offload 46 void can_rx_offload_del(struct can_rx_offload *offload);
58 void can_rx_offload_enable(struct can_rx_offlo 47 void can_rx_offload_enable(struct can_rx_offload *offload);
>> 48
>> 49 static inline void can_rx_offload_schedule(struct can_rx_offload *offload)
>> 50 {
>> 51 napi_schedule(&offload->napi);
>> 52 }
59 53
60 static inline void can_rx_offload_disable(stru 54 static inline void can_rx_offload_disable(struct can_rx_offload *offload)
61 { 55 {
62 napi_disable(&offload->napi); 56 napi_disable(&offload->napi);
63 } 57 }
64 58
65 #endif /* !_CAN_RX_OFFLOAD_H */ 59 #endif /* !_CAN_RX_OFFLOAD_H */
66 60
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