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 <[email protected]> 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 15 struct 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 32 int can_rx_offload_add_timestamp(struct net_device *dev, struct can_rx_offload *offload); 33 int can_rx_offload_add_fifo(struct net_device *dev, struct can_rx_offload *offload, unsigned int weight); 34 int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload, u64 reg); 35 int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload); 36 int can_rx_offload_queue_sorted(struct can_rx_offload *offload, 37 struct sk_buff *skb, u32 timestamp); 38 unsigned int can_rx_offload_get_echo_skb(struct can_rx_offload *offload, 39 unsigned int idx, u32 timestamp); 40 int can_rx_offload_queue_tail(struct can_rx_offload *offload, 41 struct sk_buff *skb); 42 void can_rx_offload_reset(struct can_rx_offload *offload); 43 void can_rx_offload_del(struct can_rx_offload *offload); 44 void can_rx_offload_enable(struct can_rx_offload *offload); 45 46 static inline void can_rx_offload_schedule(struct can_rx_offload *offload) 47 { 48 napi_schedule(&offload->napi); 49 } 50 51 static 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 */ 57