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